Merge pull request 'Merge BPM 0.5.0 branch into master' (#12) from develop into master

Reviewed-on: #12

.gitignore

@@ -0,0 +1,5 @@
+# IDE Directories
+.idea
+
+# Build directory
+build

LICENSE

@@ -1,674 +1,21 @@
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-  If the Program specifies that a proxy can decide which future
-versions of the GNU General Public License can be used, that proxy's
-public statement of acceptance of a version permanently authorizes you
-to choose that version for the Program.
-
-  Later license versions may give you additional or different
-permissions.  However, no additional obligations are imposed on any
-author or copyright holder as a result of your choosing to follow a
-later version.
-
-  15. Disclaimer of Warranty.
-
-  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
-APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
-HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
-OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
-THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
-IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
-ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
-
-  16. Limitation of Liability.
-
-  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
-THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
-GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
-USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
-DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
-PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
-EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
-
-  17. Interpretation of Sections 15 and 16.
-
-  If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) 2024  CapCreeperGR
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If the program does terminal interaction, make it output a short
-notice like this when it starts in an interactive mode:
-
-    <program>  Copyright (C) 2024  CapCreeperGR
-    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, your program's commands
-might be different; for a GUI interface, you would use an "about box".
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
-<https://www.gnu.org/licenses/>.
-
-  The GNU General Public License does not permit incorporating your program
-into proprietary programs.  If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.  But first, please read
-<https://www.gnu.org/licenses/why-not-lgpl.html>.

Makefile

@@ -0,0 +1,40 @@
+# Installation paths
+PREFIX ?= /usr/local
+SBINDIR ?= $(PREFIX)/sbin
+SYSCONFDIR := $(PREFIX)/etc
+
+# Compilers and tools
+GO ?= go
+
+# Build-time variables
+ROOT_COMPILATION_UID ?= 65534
+ROOT_COMPILATION_GID ?= 65534
+
+build:
+	mkdir -p build
+	cd src/bpm; $(GO) build -ldflags "-w -X 'git.enumerated.dev/bubble-package-manager/bpm/src/bpmlib.rootCompilationUID=$(ROOT_COMPILATION_UID)' -X 'git.enumerated.dev/bubble-package-manager/bpm/src/bpmlib.rootCompilationGID=$(ROOT_COMPILATION_GID)'" -o ../../build/bpm git.enumerated.dev/bubble-package-manager/bpm/src/bpm
+
+install: build/bpm config/
+	# Create directory
+	install -dm755 $(DESTDIR)$(SBINDIR)
+
+	# Install binary
+	install -Dm755 build/bpm $(DESTDIR)$(SBINDIR)/bpm
+
+install-config:
+	# Create directory
+	install -dm755 $(DESTDIR)$(SYSCONFDIR)
+
+	# Install files
+	install -Dm644 config/bpm.conf $(DESTDIR)$(SYSCONFDIR)/bpm.conf
+	install -Dm644 config/bpm-compilation.conf $(DESTDIR)$(SYSCONFDIR)/bpm-compilation.conf
+
+uninstall:
+	-rm -f $(DESTDIR)$(SBINDIR)/bpm
+	-rm -f $(DESTDIR)$(SYSCONFDIR)/bpm.conf
+	-rm -f $(DESTDIR)$(SYSCONFDIR)/bpm-compilation.conf
+
+clean:
+	rm -r build/
+
+.PHONY: build install install-config uninstall clean

README.md

@@ -1,29 +1,26 @@
 # Bubble Package Manager (BPM)
-## _A simple package manager_
+## _The official package manager for Tide Linux_
-
-BPM is a simple package manager for Linux systems
 
 ## Features
 - Simple to use subcommands
-- Can install binary and source packages
+- Can install both binary and source packages
-- Can be easily installed on practically any system
-- No bloat
 
 ## Information
-
+BPM is still in very early development. There may be bugs that could completely break installations. For now it is recommended you use this only in Virtual Machines, containers or in a Tide Linux installation
-BPM is still in very early development. It should not be installed on any system you use seriously. I recommend trying this out in a VM or container. In addition to this, this is one of the first projects I have made using the go programming language so code quality may not be the best. This project was made to help me learn go and how linux systems work better. It is not meant to replace the big package managers in any way
 
 ## Build from source
 
-BPM requires go 1.22 or above to be built properly
+- Download `go` from your package manager or from the go website
-
+- Download `make` from your package manager
+- Run the following command to compile the project. You may need to set the `GO` environment variable if your Go installation is not in your PATH
 ```sh
-git clone https://gitlab.com/bubble-package-manager/bpm.git
+make
-cd bpm
+```
-mkdir build
+- Run the following command to install BPM into your system. You may also append a DESTDIR variable at the end of this line if you wish to install in a different location
-go build -o ./build/bpm capcreepergr.me/bpm
+```sh
+make install PREFIX=/usr SYSCONFDIR=/etc
+make install-config PREFIX=/usr SYSCONFDIR=/etc
 ```
-You are now able to copy the executable in the ./build directory in a VM or container's /usr/bin/ directory
 
 ## How to use
 
@@ -31,65 +28,38 @@ You are able to install bpm packages by typing the following:
 ```sh
 bpm install /path/to/package.bpm
 ```
-You may also use the -y flag as shown below to bypass the installation confirmation prompt
+You can also use the package name directly if using databases
+```sh
+bpm install package_name
+```
+The -y flag may be used as shown below to bypass the confirmation prompt
 ```sh
 bpm install -y /path/to/package.bpm
 ```
-Flags must strictly be typed before the first package path otherwise they'll be read as package locations themselves
+Flags must strictly be typed before the first package path or name, otherwise they'll be read as package locations themselves
 
 You can remove an installed package by typing the following
 ```sh
 bpm remove package_name
 ```
-The -y flag applies here as well if you wish to skip the removal confirmation prompt
+
+To remove all unused dependencies and clean cached files try using the cleanup command
+```sh
+bpm cleanup
+```
+
+If using databases, all packages can be updated using this simple command
+```sh
+bpm update
+```
 
 For information on the rest of the commands simply use the help command or pass in no arguments at all
-```
+```sh
 bpm help
 ```
 
 ## Package Creation
 
-Creating a package for BPM is simple
+Package creation is simplified using the bpm-utils package which contains helper scripts for creating packages
 
-To create a package you need to
+Learn more here: https://git.enumerated.dev/bubble-package-manager/bpm-utils
-1) Create a working directory
-```
-mkdir my_bpm_package
-```
-2) Create a pkg.info file following this format (You can find examples in the test_packages directory)
-```
-name: my_package
-description: My package's description
-version: 1.0
-architecture: x86_64
-type: <binary/source>
-depends: dependency1,dependency2
-make_depends: make_depend1,make_depend2
-```
-depends and make depends are optional fields, you may skip them if you'd like
-### Binary Packages
-3) If you are making a binary package, simply create a 'files' directory
-```
-mkdir files
-```
-4) Copy all your binaries along with the directories they reside in (i.e files/usr/bin/my_binary)
-5) Either copy the bpm-create script from the bpm-utils test package into your /usr/local/bin directory or install the bpm-utils.bpm package
-6) Run the following
-```
-bpm-create <filename.bpm>
-```
-7) It's done! You now hopefully have a working BPM package!
-### Source Packages
-3) If you are making a source package, you need to create a 'source.sh' file
-```
-touch source.sh
-```
-4) If you would like to bundle patches or other files with your source package create a 'source-files' directory and place your files in there. They will be extracted to the same location as the source.sh file during compilation
-5) You are able to run bash code in source.sh. BPM will extract this file in a directory under /tmp and it will be run there
-6) Your goal is to download your program's source code with either git, wget, curl, etc. and put the binaries under a folder called 'output' in the root of the temp directory. There is a simple example script with helpful comments in the htop-src test package
-7) When you are done making your source.sh script run the following to create a package archive
-```
-bpm-create <filename.bpm>
-```
-8) That's it! Your source package should now be compiling correctly!

bpm_utils/general_utils.go

@@ -1,41 +0,0 @@
-package bpm_utils
-
-import (
-	"os/exec"
-	"strings"
-)
-
-func GetArch() string {
-	output, err := exec.Command("/usr/bin/uname", "-m").Output()
-	if err != nil {
-		return ""
-	}
-	return strings.TrimSpace(string(output))
-}
-
-func stringSliceRemove(s []string, r string) []string {
-	for i, v := range s {
-		if v == r {
-			return append(s[:i], s[i+1:]...)
-		}
-	}
-	return s
-}
-
-func stringSliceRemoveEmpty(s []string) []string {
-	var r []string
-	for _, str := range s {
-		if str != "" {
-			r = append(r, str)
-		}
-	}
-	return r
-}
-
-func byteArrayToString(bs []byte) string {
-	b := make([]byte, len(bs))
-	for i, v := range bs {
-		b[i] = v
-	}
-	return string(b)
-}

bpm_utils/package_utils.go

@@ -1,876 +0,0 @@
-package bpm_utils
-
-import (
-	"archive/tar"
-	"bufio"
-	"compress/gzip"
-	"errors"
-	"fmt"
-	"io"
-	"io/fs"
-	"os"
-	"os/exec"
-	"path"
-	"path/filepath"
-	"slices"
-	"strconv"
-	"strings"
-)
-
-type PackageInfo struct {
-	Name        string
-	Description string
-	Version     string
-	Url         string
-	License     string
-	Arch        string
-	Type        string
-	Depends     []string
-	MakeDepends []string
-	Provides    []string
-}
-
-func GetPackageInfoRaw(filename string) (string, error) {
-	if _, err := os.Stat(filename); os.IsNotExist(err) {
-		return "", err
-	}
-	file, err := os.Open(filename)
-	if err != nil {
-		return "", err
-	}
-	archive, err := gzip.NewReader(file)
-	if err != nil {
-		return "", err
-	}
-	tr := tar.NewReader(archive)
-	for {
-		header, err := tr.Next()
-		if err == io.EOF {
-			break
-		}
-		if err != nil {
-			return "", err
-		}
-		if header.Name == "pkg.info" {
-			bs, _ := io.ReadAll(tr)
-			err := file.Close()
-			if err != nil {
-				return "", err
-			}
-			return string(bs), nil
-		}
-	}
-	return "", errors.New("pkg.info not found in archive")
-}
-
-func ReadPackage(filename string) (*PackageInfo, error) {
-	if _, err := os.Stat(filename); os.IsNotExist(err) {
-		return nil, err
-	}
-	file, err := os.Open(filename)
-	if err != nil {
-		return nil, err
-	}
-	archive, err := gzip.NewReader(file)
-	if err != nil {
-		return nil, err
-	}
-	tr := tar.NewReader(archive)
-	for {
-		header, err := tr.Next()
-		if err == io.EOF {
-			break
-		}
-		if err != nil {
-			return nil, err
-		}
-		if header.Name == "pkg.info" {
-			bs, _ := io.ReadAll(tr)
-			err := file.Close()
-			if err != nil {
-				return nil, err
-			}
-			pkgInfo, err := ReadPackageInfo(string(bs), false)
-			if err != nil {
-				return nil, err
-			}
-			return pkgInfo, nil
-		}
-	}
-	return nil, errors.New("pkg.info not found in archive")
-}
-
-func ReadPackageInfo(contents string, defaultValues bool) (*PackageInfo, error) {
-	pkgInfo := PackageInfo{
-		Name:        "",
-		Description: "",
-		Version:     "",
-		Url:         "",
-		License:     "",
-		Arch:        "",
-		Type:        "",
-		Depends:     nil,
-		MakeDepends: nil,
-		Provides:    nil,
-	}
-	lines := strings.Split(contents, "\n")
-	for num, line := range lines {
-		if len(strings.TrimSpace(line)) == 0 {
-			continue
-		}
-		if line[0] == '#' {
-			continue
-		}
-		split := strings.SplitN(line, ":", 2)
-		if len(split) != 2 {
-			return nil, errors.New("invalid pkg.info format at line " + strconv.Itoa(num))
-		}
-		split[0] = strings.Trim(split[0], " ")
-		split[1] = strings.Trim(split[1], " ")
-		switch split[0] {
-		case "name":
-			if strings.Contains(split[1], " ") {
-				return nil, errors.New("the " + split[0] + " field cannot contain spaces")
-			}
-			pkgInfo.Name = split[1]
-		case "description":
-			pkgInfo.Description = split[1]
-		case "version":
-			if strings.Contains(split[1], " ") {
-				return nil, errors.New("the " + split[0] + " field cannot contain spaces")
-			}
-			pkgInfo.Version = split[1]
-		case "url":
-			pkgInfo.Url = split[1]
-		case "license":
-			pkgInfo.License = split[1]
-		case "architecture":
-			pkgInfo.Arch = split[1]
-		case "type":
-			pkgInfo.Type = split[1]
-		case "depends":
-			pkgInfo.Depends = strings.Split(strings.Replace(split[1], " ", "", -1), ",")
-			pkgInfo.Depends = stringSliceRemoveEmpty(pkgInfo.Depends)
-		case "make_depends":
-			pkgInfo.MakeDepends = strings.Split(strings.Replace(split[1], " ", "", -1), ",")
-			pkgInfo.MakeDepends = stringSliceRemoveEmpty(pkgInfo.MakeDepends)
-		case "provides":
-			pkgInfo.Provides = strings.Split(strings.Replace(split[1], " ", "", -1), ",")
-			pkgInfo.Provides = stringSliceRemoveEmpty(pkgInfo.Provides)
-		}
-	}
-	if !defaultValues {
-		if pkgInfo.Name == "" {
-			return nil, errors.New("this package contains no name")
-		} else if pkgInfo.Description == "" {
-			return nil, errors.New("this package contains no description")
-		} else if pkgInfo.Version == "" {
-			return nil, errors.New("this package contains no version")
-		} else if pkgInfo.Arch == "" {
-			return nil, errors.New("this package contains no architecture")
-		} else if pkgInfo.Type == "" {
-			return nil, errors.New("this package contains no type")
-		}
-	}
-	return &pkgInfo, nil
-}
-
-func CreateInfoFile(pkgInfo PackageInfo) string {
-	ret := ""
-	ret = ret + "name: " + pkgInfo.Name + "\n"
-	ret = ret + "description: " + pkgInfo.Description + "\n"
-	ret = ret + "version: " + pkgInfo.Version + "\n"
-	if pkgInfo.Url != "" {
-		ret = ret + "url: " + pkgInfo.Url + "\n"
-	}
-	if pkgInfo.License != "" {
-		ret = ret + "license: " + pkgInfo.License + "\n"
-	}
-	ret = ret + "architecture: " + pkgInfo.Arch + "\n"
-	ret = ret + "type: " + pkgInfo.Type + "\n"
-	if len(pkgInfo.Depends) > 0 {
-		ret = ret + "depends (" + strconv.Itoa(len(pkgInfo.Depends)) + "): " + strings.Join(pkgInfo.Depends, ",") + "\n"
-	}
-	if len(pkgInfo.Provides) > 0 {
-		ret = ret + "provides (" + strconv.Itoa(len(pkgInfo.Provides)) + "): " + strings.Join(pkgInfo.Provides, ",") + "\n"
-	}
-	return ret
-}
-
-func InstallPackage(filename, installDir string, force, binaryPkgFromSrc, keepTempDir bool) error {
-	if _, err := os.Stat(filename); os.IsNotExist(err) {
-		return err
-	}
-	file, err := os.Open(filename)
-	if err != nil {
-		return err
-	}
-	archive, err := gzip.NewReader(file)
-	if err != nil {
-		return err
-	}
-	tr := tar.NewReader(archive)
-	var oldFiles []string
-	var files []string
-	pkgInfo, err := ReadPackage(filename)
-	if err != nil {
-		return err
-	}
-	if IsPackageInstalled(pkgInfo.Name, installDir) {
-		oldFiles = GetPackageFiles(pkgInfo.Name, installDir)
-	}
-	if !force {
-		if pkgInfo.Arch != "any" && pkgInfo.Arch != GetArch() {
-			return errors.New("cannot install a package with a different architecture")
-		}
-		if unresolved := CheckDependencies(pkgInfo, installDir); len(unresolved) != 0 {
-			return errors.New("Could not resolve all dependencies. Missing " + strings.Join(unresolved, ", "))
-		}
-	}
-
-	if pkgInfo.Type == "binary" {
-		seenHardlinks := make(map[string]string)
-		for {
-			header, err := tr.Next()
-			if err == io.EOF {
-				break
-			}
-			if err != nil {
-				return err
-			}
-			if strings.HasPrefix(header.Name, "files/") && header.Name != "files/" {
-				extractFilename := path.Join(installDir, strings.TrimPrefix(header.Name, "files/"))
-				switch header.Typeflag {
-				case tar.TypeDir:
-					files = append(files, strings.TrimPrefix(header.Name, "files/"))
-					if err := os.Mkdir(extractFilename, 0755); err != nil {
-						if !os.IsExist(err) {
-							return err
-						}
-					} else {
-						fmt.Println("Creating Directory: " + extractFilename)
-					}
-				case tar.TypeReg:
-					err := os.Remove(extractFilename)
-					if err != nil && !os.IsNotExist(err) {
-						return err
-					}
-					outFile, err := os.Create(extractFilename)
-					fmt.Println("Creating File: " + extractFilename)
-					files = append(files, strings.TrimPrefix(header.Name, "files/"))
-					if err != nil {
-						return err
-					}
-					if _, err := io.Copy(outFile, tr); err != nil {
-						return err
-					}
-					if err := os.Chmod(extractFilename, header.FileInfo().Mode()); err != nil {
-						return err
-					}
-					err = outFile.Close()
-					if err != nil {
-						return err
-					}
-				case tar.TypeSymlink:
-					fmt.Println("Creating Symlink: " + extractFilename + " -> " + header.Linkname)
-					files = append(files, strings.TrimPrefix(header.Name, "files/"))
-					err := os.Remove(extractFilename)
-					if err != nil && !os.IsNotExist(err) {
-						return err
-					}
-					err = os.Symlink(header.Linkname, extractFilename)
-					if err != nil {
-						return err
-					}
-				case tar.TypeLink:
-					fmt.Println("Detected Hard Link: " + extractFilename + " -> " + path.Join(installDir, strings.TrimPrefix(header.Linkname, "files/")))
-					files = append(files, strings.TrimPrefix(header.Name, "files/"))
-					seenHardlinks[extractFilename] = path.Join(strings.TrimPrefix(header.Linkname, "files/"))
-					err := os.Remove(extractFilename)
-					if err != nil && !os.IsNotExist(err) {
-						return err
-					}
-				default:
-					return errors.New("ExtractTarGz: unknown type: " + strconv.Itoa(int(header.Typeflag)) + " in " + extractFilename)
-				}
-			}
-		}
-		for extractFilename, destination := range seenHardlinks {
-			fmt.Println("Creating Hard Link: " + extractFilename + " -> " + path.Join(installDir, destination))
-			err := os.Link(path.Join(installDir, destination), extractFilename)
-			if err != nil {
-				return err
-			}
-		}
-	} else if pkgInfo.Type == "source" {
-		temp := "/var/tmp/bpm_source-" + pkgInfo.Name
-		err = os.RemoveAll(temp)
-		if err != nil {
-			return err
-		}
-		err = os.Mkdir(temp, 0755)
-		fmt.Println("Creating temp directory at: " + temp)
-		if err != nil {
-			return err
-		}
-		for {
-			header, err := tr.Next()
-			if err == io.EOF {
-				break
-			}
-			if err != nil {
-				return err
-			}
-			if strings.HasPrefix(header.Name, "source-files/") && header.Name != "source-files/" {
-				extractFilename := path.Join(temp, strings.TrimPrefix(header.Name, "source-files/"))
-				switch header.Typeflag {
-				case tar.TypeDir:
-					if err := os.Mkdir(extractFilename, 0755); err != nil {
-						if !os.IsExist(err) {
-							return err
-						}
-					} else {
-						fmt.Println("Creating Directory: " + extractFilename)
-					}
-				case tar.TypeReg:
-					err := os.Remove(extractFilename)
-					if err != nil && !os.IsNotExist(err) {
-						return err
-					}
-					outFile, err := os.Create(extractFilename)
-					fmt.Println("Creating File: " + extractFilename)
-					if err != nil {
-						return err
-					}
-					if _, err := io.Copy(outFile, tr); err != nil {
-						return err
-					}
-					if err := os.Chmod(extractFilename, header.FileInfo().Mode()); err != nil {
-						return err
-					}
-					err = outFile.Close()
-					if err != nil {
-						return err
-					}
-				case tar.TypeSymlink:
-					fmt.Println("Skipping symlink (Bundling symlinks in source packages is not supported)")
-				case tar.TypeLink:
-					fmt.Println("Skipping hard link (Bundling hard links in source packages is not supported)")
-				default:
-					return errors.New("ExtractTarGz: unknown type: " + strconv.Itoa(int(header.Typeflag)) + " in " + extractFilename)
-				}
-			}
-			if header.Name == "source.sh" {
-				bs, err := io.ReadAll(tr)
-				if err != nil {
-					return err
-				}
-				err = os.WriteFile(path.Join(temp, "source.sh"), bs, 0644)
-				if err != nil {
-					return err
-				}
-			}
-		}
-		if _, err := os.Stat(path.Join(temp, "source.sh")); os.IsNotExist(err) {
-			return errors.New("source.sh file could not be found in the temporary build directory")
-		}
-		if err != nil {
-			return err
-		}
-		fmt.Println("Running source.sh file...")
-		if err != nil {
-			return err
-		}
-		cmd := exec.Command("/bin/bash", "-e", "source.sh")
-		cmd.Stdin = os.Stdin
-		cmd.Stdout = os.Stdout
-		cmd.Stderr = os.Stderr
-		cmd.Dir = temp
-		cmd.Env = os.Environ()
-		cmd.Env = append(cmd.Env, fmt.Sprintf("BPM_PKG_NAME=%s", pkgInfo.Name))
-		cmd.Env = append(cmd.Env, fmt.Sprintf("BPM_PKG_DESC=%s", pkgInfo.Description))
-		cmd.Env = append(cmd.Env, fmt.Sprintf("BPM_PKG_VERSION=%s", pkgInfo.Version))
-		cmd.Env = append(cmd.Env, fmt.Sprintf("BPM_PKG_URL=%s", pkgInfo.Url))
-		depends := make([]string, len(pkgInfo.Depends))
-		copy(depends, pkgInfo.Depends)
-		for i := 0; i < len(depends); i++ {
-			depends[i] = fmt.Sprintf("\"%s\"", depends[i])
-		}
-		makeDepends := make([]string, len(pkgInfo.MakeDepends))
-		copy(makeDepends, pkgInfo.MakeDepends)
-		for i := 0; i < len(makeDepends); i++ {
-			makeDepends[i] = fmt.Sprintf("\"%s\"", makeDepends[i])
-		}
-		cmd.Env = append(cmd.Env, fmt.Sprintf("BPM_PKG_DEPENDS=(%s)", strings.Join(depends, " ")))
-		cmd.Env = append(cmd.Env, fmt.Sprintf("BPM_PKG_MAKE_DEPENDS=(%s)", strings.Join(makeDepends, " ")))
-		cmd.Env = append(cmd.Env, "BPM_PKG_TYPE=source")
-		err = cmd.Run()
-		if err != nil {
-			return err
-		}
-		if _, err := os.Stat(path.Join(temp, "/output/")); err != nil {
-			if os.IsNotExist(err) {
-				return errors.New("Output directory not be found at " + path.Join(temp, "/output/"))
-			}
-			return err
-		}
-		fmt.Println("Copying all files...")
-		err = filepath.WalkDir(path.Join(temp, "/output/"), func(fullpath string, d fs.DirEntry, err error) error {
-			relFilename, err := filepath.Rel(path.Join(temp, "/output/"), fullpath)
-			if relFilename == "." {
-				return nil
-			}
-			extractFilename := path.Join(installDir, relFilename)
-			if err != nil {
-				return err
-			}
-			if d.Type() == os.ModeDir {
-				files = append(files, relFilename+"/")
-				if err := os.Mkdir(extractFilename, 0755); err != nil {
-					if !os.IsExist(err) {
-						return err
-					}
-				} else {
-					fmt.Println("Creating Directory: " + extractFilename)
-				}
-			} else if d.Type().IsRegular() {
-				err := os.Remove(extractFilename)
-				if err != nil && !os.IsNotExist(err) {
-					return err
-				}
-				outFile, err := os.Create(extractFilename)
-				fmt.Println("Creating File: " + extractFilename)
-				files = append(files, relFilename)
-				if err != nil {
-					return err
-				}
-				f, err := os.Open(fullpath)
-				if err != nil {
-					return err
-				}
-				if _, err := io.Copy(outFile, f); err != nil {
-					return err
-				}
-				info, err := os.Stat(fullpath)
-				if err != nil {
-					return err
-				}
-				if err := os.Chmod(extractFilename, info.Mode()); err != nil {
-					return err
-				}
-				err = outFile.Close()
-				if err != nil {
-					return err
-				}
-				err = f.Close()
-				if err != nil {
-					return err
-				}
-			} else if d.Type() == os.ModeSymlink {
-				link, err := os.Readlink(fullpath)
-				if err != nil {
-					return err
-				}
-				err = os.Remove(extractFilename)
-				if err != nil && !os.IsNotExist(err) {
-					return err
-				}
-				fmt.Println("Creating Symlink: "+extractFilename, " -> "+link)
-				files = append(files, relFilename)
-				err = os.Symlink(link, extractFilename)
-				if err != nil {
-					return err
-				}
-			}
-			return nil
-		})
-		if err != nil {
-			return err
-		}
-		if binaryPkgFromSrc {
-			compiledDir := path.Join(installDir, "var/lib/bpm/compiled/")
-			err = os.MkdirAll(compiledDir, 755)
-			compiledInfo := PackageInfo{}
-			compiledInfo = *pkgInfo
-			compiledInfo.Type = "binary"
-			compiledInfo.Arch = GetArch()
-			err = os.WriteFile(path.Join(compiledDir, "pkg.info"), []byte(CreateInfoFile(compiledInfo)), 0644)
-			if err != nil {
-				return err
-			}
-			sed := fmt.Sprintf("s/%s/files/", strings.Replace(strings.TrimPrefix(path.Join(temp, "/output/"), "/"), "/", `\/`, -1))
-			cmd := exec.Command("/usr/bin/tar", "-czvf", compiledInfo.Name+"-"+compiledInfo.Version+".bpm", "pkg.info", path.Join(temp, "/output/"), "--transform", sed)
-			cmd.Stdin = os.Stdin
-			cmd.Stdout = os.Stdout
-			cmd.Stderr = os.Stderr
-			cmd.Dir = compiledDir
-			fmt.Printf("running command: %s %s\n", cmd.Path, strings.Join(cmd.Args, " "))
-			err := cmd.Run()
-			if err != nil {
-				return err
-			}
-			err = os.Remove(path.Join(compiledDir, "pkg.info"))
-			if err != nil {
-				return err
-			}
-		}
-		if !keepTempDir {
-			err := os.RemoveAll(temp)
-			if err != nil {
-				return err
-			}
-		}
-		if len(files) == 0 {
-			return errors.New("no output files for source package. Cancelling package installation")
-		}
-	} else {
-		return errors.New("Unknown package type: " + pkgInfo.Type)
-	}
-	slices.Sort(files)
-	slices.Reverse(files)
-
-	filesDiff := slices.DeleteFunc(oldFiles, func(f string) bool {
-		return slices.Contains(files, f)
-	})
-
-	installedDir := path.Join(installDir, "var/lib/bpm/installed/")
-	err = os.MkdirAll(installedDir, 755)
-	if err != nil {
-		return err
-	}
-	pkgDir := path.Join(installedDir, pkgInfo.Name)
-	err = os.RemoveAll(pkgDir)
-	if err != nil {
-		return err
-	}
-	err = os.Mkdir(pkgDir, 755)
-	if err != nil {
-		return err
-	}
-
-	f, err := os.Create(path.Join(pkgDir, "files"))
-	if err != nil {
-		return err
-	}
-	for _, line := range files {
-		_, err := f.WriteString(line + "\n")
-		if err != nil {
-			return err
-		}
-	}
-	err = f.Close()
-	if err != nil {
-		return err
-	}
-
-	f, err = os.Create(path.Join(pkgDir, "info"))
-	if err != nil {
-		return err
-	}
-	raw, err := GetPackageInfoRaw(filename)
-	if err != nil {
-		return err
-	}
-	_, err = f.WriteString(raw)
-	if err != nil {
-		return err
-	}
-	err = f.Close()
-	if err != nil {
-		return err
-	}
-
-	err = archive.Close()
-	if err != nil {
-		return err
-	}
-	err = file.Close()
-	if err != nil {
-		return err
-	}
-	if len(filesDiff) != 0 {
-		fmt.Println("Removing obsolete files")
-		for _, f := range filesDiff {
-			f = path.Join(installDir, f)
-			stat, err := os.Lstat(f)
-			if os.IsNotExist(err) {
-				continue
-			}
-			if err != nil {
-				return err
-			}
-			if stat.IsDir() {
-				dir, err := os.ReadDir(f)
-				if err != nil {
-					return err
-				}
-				if len(dir) == 0 {
-					fmt.Println("Removing: " + f)
-					err := os.Remove(f)
-					if err != nil {
-						return err
-					}
-				}
-			} else {
-				fmt.Println("Removing: " + f)
-				err := os.Remove(f)
-				if err != nil {
-					return err
-				}
-			}
-		}
-	}
-	return nil
-}
-
-func GetSourceScript(filename string) (string, error) {
-	pkgInfo, err := ReadPackage(filename)
-	if err != nil {
-		return "", err
-	}
-	if pkgInfo.Type != "source" {
-		return "", errors.New("package not of source type")
-	}
-	file, err := os.Open(filename)
-	if err != nil {
-		return "", err
-	}
-	archive, err := gzip.NewReader(file)
-	if err != nil {
-		return "", err
-	}
-	tr := tar.NewReader(archive)
-	for {
-		header, err := tr.Next()
-		if err == io.EOF {
-			break
-		}
-		if header.Name == "source.sh" {
-			err := archive.Close()
-			if err != nil {
-				return "", err
-			}
-			err = file.Close()
-			if err != nil {
-				return "", err
-			}
-			bs, err := io.ReadAll(tr)
-			if err != nil {
-				return "", err
-			}
-			return string(bs), nil
-		}
-	}
-	return "", errors.New("package does not contain a source.sh file")
-}
-
-func CheckDependencies(pkgInfo *PackageInfo, rootDir string) []string {
-	unresolved := make([]string, len(pkgInfo.Depends))
-	copy(unresolved, pkgInfo.Depends)
-	installedDir := path.Join(rootDir, "var/lib/bpm/installed/")
-	if _, err := os.Stat(installedDir); err != nil {
-		return nil
-	}
-	items, err := os.ReadDir(installedDir)
-	if err != nil {
-		return nil
-	}
-
-	for _, item := range items {
-		if !item.IsDir() {
-			continue
-		}
-		_, err := os.Stat(path.Join(installedDir, item.Name(), "/info"))
-		if err != nil {
-			return nil
-		}
-		bs, err := os.ReadFile(path.Join(installedDir, item.Name(), "/info"))
-		if err != nil {
-			return nil
-		}
-		info, err := ReadPackageInfo(string(bs), false)
-		if err != nil {
-			return nil
-		}
-		if slices.Contains(unresolved, info.Name) {
-			unresolved = stringSliceRemove(unresolved, info.Name)
-		}
-		for _, prov := range info.Provides {
-			if slices.Contains(unresolved, prov) {
-				unresolved = stringSliceRemove(unresolved, prov)
-			}
-		}
-	}
-	return unresolved
-}
-
-func CheckMakeDependencies(pkgInfo *PackageInfo, rootDir string) []string {
-	unresolved := make([]string, len(pkgInfo.MakeDepends))
-	copy(unresolved, pkgInfo.MakeDepends)
-	installedDir := path.Join(rootDir, "var/lib/bpm/installed/")
-	if _, err := os.Stat(installedDir); err != nil {
-		return nil
-	}
-	items, err := os.ReadDir(installedDir)
-	if err != nil {
-		return nil
-	}
-
-	for _, item := range items {
-		if !item.IsDir() {
-			continue
-		}
-		_, err := os.Stat(path.Join(installedDir, item.Name(), "/info"))
-		if err != nil {
-			return nil
-		}
-		bs, err := os.ReadFile(path.Join(installedDir, item.Name(), "/info"))
-		if err != nil {
-			return nil
-		}
-		info, err := ReadPackageInfo(string(bs), false)
-		if err != nil {
-			return nil
-		}
-		if slices.Contains(unresolved, info.Name) {
-			unresolved = stringSliceRemove(unresolved, info.Name)
-		}
-		for _, prov := range info.Provides {
-			if slices.Contains(unresolved, prov) {
-				unresolved = stringSliceRemove(unresolved, prov)
-			}
-		}
-	}
-	return unresolved
-}
-
-func IsPackageInstalled(pkg, rootDir string) bool {
-	installedDir := path.Join(rootDir, "var/lib/bpm/installed/")
-	pkgDir := path.Join(installedDir, pkg)
-	if _, err := os.Stat(pkgDir); err != nil {
-		return false
-	}
-	return true
-}
-
-func GetInstalledPackages(rootDir string) ([]string, error) {
-	installedDir := path.Join(rootDir, "var/lib/bpm/installed/")
-	items, err := os.ReadDir(installedDir)
-	if os.IsNotExist(err) {
-		return nil, nil
-	}
-	if err != nil {
-		return nil, err
-	}
-	var ret []string
-	for _, item := range items {
-		ret = append(ret, item.Name())
-	}
-	return ret, nil
-}
-
-func GetPackageFiles(pkg, rootDir string) []string {
-	var ret []string
-	installedDir := path.Join(rootDir, "var/lib/bpm/installed/")
-	pkgDir := path.Join(installedDir, pkg)
-	files := path.Join(pkgDir, "files")
-	if _, err := os.Stat(installedDir); os.IsNotExist(err) {
-		return nil
-	}
-	if _, err := os.Stat(pkgDir); os.IsNotExist(err) {
-		return nil
-	}
-	file, err := os.Open(files)
-	if err != nil {
-		return nil
-	}
-	scanner := bufio.NewScanner(file)
-	for scanner.Scan() {
-		ret = append(ret, scanner.Text())
-	}
-	return ret
-}
-
-func GetPackageInfo(pkg, rootDir string, defaultValues bool) *PackageInfo {
-	installedDir := path.Join(rootDir, "var/lib/bpm/installed/")
-	pkgDir := path.Join(installedDir, pkg)
-	files := path.Join(pkgDir, "info")
-	if _, err := os.Stat(installedDir); os.IsNotExist(err) {
-		return nil
-	}
-	if _, err := os.Stat(pkgDir); os.IsNotExist(err) {
-		return nil
-	}
-	file, err := os.Open(files)
-	if err != nil {
-		return nil
-	}
-	bs, err := io.ReadAll(file)
-	if err != nil {
-		return nil
-	}
-	info, err := ReadPackageInfo(string(bs), defaultValues)
-	if err != nil {
-		return nil
-	}
-	return info
-}
-
-func setPackageInfo(pkg, contents, rootDir string) error {
-	installedDir := path.Join(rootDir, "var/lib/bpm/installed/")
-	pkgDir := path.Join(installedDir, pkg)
-	info := path.Join(pkgDir, "info")
-	if _, err := os.Stat(installedDir); os.IsNotExist(err) {
-		return err
-	}
-	if _, err := os.Stat(pkgDir); os.IsNotExist(err) {
-		return err
-	}
-	bs := []byte(contents)
-	err := os.WriteFile(info, bs, 0644)
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
-func RemovePackage(pkg, rootDir string) error {
-	installedDir := path.Join(rootDir, "var/lib/bpm/installed/")
-	pkgDir := path.Join(installedDir, pkg)
-	files := GetPackageFiles(pkg, rootDir)
-	for _, file := range files {
-		file = path.Join(rootDir, file)
-		stat, err := os.Lstat(file)
-		if os.IsNotExist(err) {
-			continue
-		}
-		if err != nil {
-			return err
-		}
-		if stat.IsDir() {
-			dir, err := os.ReadDir(file)
-			if err != nil {
-				return err
-			}
-			if len(dir) == 0 {
-				fmt.Println("Removing: " + file)
-				err := os.Remove(file)
-				if err != nil {
-					return err
-				}
-			}
-		} else {
-			fmt.Println("Removing: " + file)
-			err := os.Remove(file)
-			if err != nil {
-				return err
-			}
-		}
-	}
-	err := os.RemoveAll(pkgDir)
-	if err != nil {
-		return err
-	}
-	fmt.Println("Removing: " + pkgDir)
-	return nil
-}

config.go

@@ -1 +0,0 @@
-package main

config/bpm-compilation.conf

@@ -0,0 +1,2 @@
+privilege_escalator_cmd: "sudo"
+compilation_env: []

config/bpm.conf

@@ -0,0 +1,6 @@
+ignore_packages: []
+cleanup_make_dependencies: true
+databases:
+  - name: example-database
+    source: https://my-database.xyz/
+    disabled: true

go.mod

@@ -1,3 +0,0 @@
-module capcreepergr.me/bpm
-
-go 1.22

main.go

@@ -1,401 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"capcreepergr.me/bpm/bpm_utils"
-	"flag"
-	"fmt"
-	"log"
-	"os"
-	"path/filepath"
-	"slices"
-	"strings"
-)
-
-/* ---BPM | Bubble Package Manager--- */
-/*        Made By CapCreeperGR        */
-/*   A simple-to-use package manager  */
-/* ---------------------------------- */
-
-var bpmVer = "0.1.5"
-
-var subcommand = "help"
-var subcommandArgs []string
-
-// Flags
-var rootDir = "/"
-var yesAll = false
-var buildSource = false
-var keepTempDir = false
-var forceInstall = false
-var pkgListNumbers = false
-var pkgListNames = false
-
-func main() {
-	resolveFlags()
-	resolveCommand()
-}
-
-type commandType uint8
-
-const (
-	help commandType = iota
-	version
-	info
-	list
-	install
-	remove
-	file
-)
-
-func getCommandType() commandType {
-	switch subcommand {
-	case "version":
-		return version
-	case "info":
-		return info
-	case "list":
-		return list
-	case "install":
-		return install
-	case "remove":
-		return remove
-	case "file":
-		return file
-	default:
-		return help
-	}
-}
-
-func resolveCommand() {
-	switch getCommandType() {
-	case version:
-		fmt.Println("Bubble Package Manager (BPM)")
-		fmt.Println("Version: " + bpmVer)
-	case info:
-		packages := subcommandArgs
-		if len(packages) == 0 {
-			fmt.Println("No packages were given")
-			return
-		}
-		for n, pkg := range packages {
-			info := bpm_utils.GetPackageInfo(pkg, rootDir, false)
-			if info == nil {
-				fmt.Printf("Package (%s) could not be found\n", pkg)
-				continue
-			}
-			fmt.Print("----------------\n" + bpm_utils.CreateInfoFile(*info))
-			if n == len(packages)-1 {
-				fmt.Println("----------------")
-			}
-		}
-	case list:
-		packages, err := bpm_utils.GetInstalledPackages(rootDir)
-		if err != nil {
-			log.Fatalf("Could not get installed packages\nError: %s", err.Error())
-			return
-		}
-		if len(packages) == 0 {
-			fmt.Println("No packages have been installed")
-			return
-		}
-		if pkgListNumbers {
-			fmt.Println(len(packages))
-		} else if pkgListNames {
-			for _, pkg := range packages {
-				fmt.Println(pkg)
-			}
-		} else {
-			for n, pkg := range packages {
-				info := bpm_utils.GetPackageInfo(pkg, rootDir, false)
-				if info == nil {
-					fmt.Printf("Package (%s) could not be found\n", pkg)
-					continue
-				}
-				fmt.Print("----------------\n" + bpm_utils.CreateInfoFile(*info))
-				if n == len(packages)-1 {
-					fmt.Println("----------------")
-				}
-			}
-		}
-	case install:
-		if os.Getuid() != 0 {
-			fmt.Println("This subcommand needs to be run with superuser permissions")
-			os.Exit(0)
-		}
-		files := subcommandArgs
-		if len(files) == 0 {
-			fmt.Println("No files were given to install")
-			return
-		}
-		for _, file := range files {
-			pkgInfo, err := bpm_utils.ReadPackage(file)
-			if err != nil {
-				log.Fatalf("Could not read package\nError: %s\n", err)
-			}
-			fmt.Print("----------------\n" + bpm_utils.CreateInfoFile(*pkgInfo))
-			fmt.Println("----------------")
-			verb := "install"
-			if pkgInfo.Type == "source" {
-				verb = "build"
-			}
-			if !forceInstall {
-				if pkgInfo.Arch != "any" && pkgInfo.Arch != bpm_utils.GetArch() {
-					fmt.Printf("skipping... cannot %s a package with a different architecture\n", verb)
-					continue
-				}
-				if unresolved := bpm_utils.CheckDependencies(pkgInfo, rootDir); len(unresolved) != 0 {
-					fmt.Printf("skipping... cannot %s package (%s) due to missing dependencies: %s\n", verb, pkgInfo.Name, strings.Join(unresolved, ", "))
-					continue
-				}
-				if pkgInfo.Type == "source" {
-					if unresolved := bpm_utils.CheckMakeDependencies(pkgInfo, rootDir); len(unresolved) != 0 {
-						fmt.Printf("skipping... cannot %s package (%s) due to missing make dependencies: %s\n", verb, pkgInfo.Name, strings.Join(unresolved, ", "))
-						continue
-					}
-				}
-			}
-			if rootDir != "/" {
-				fmt.Println("Warning: Installing to " + rootDir)
-			}
-			if !yesAll {
-				reader := bufio.NewReader(os.Stdin)
-				if pkgInfo.Type == "source" {
-					fmt.Print("Would you like to view the source.sh file of this package? [Y\\n] ")
-					text, _ := reader.ReadString('\n')
-					if strings.TrimSpace(strings.ToLower(text)) != "n" && strings.TrimSpace(strings.ToLower(text)) != "no" {
-						script, err := bpm_utils.GetSourceScript(file)
-						if err != nil {
-							log.Fatalf("Could not read source script\nError: %s\n", err)
-						}
-						fmt.Println(script)
-						fmt.Println("-------EOF-------")
-					}
-				}
-			}
-			if bpm_utils.IsPackageInstalled(pkgInfo.Name, rootDir) {
-				if !yesAll {
-					installedInfo := bpm_utils.GetPackageInfo(pkgInfo.Name, rootDir, false)
-					if strings.Compare(pkgInfo.Version, installedInfo.Version) > 0 {
-						fmt.Println("This file contains a newer version of this package (" + installedInfo.Version + " -> " + pkgInfo.Version + ")")
-						fmt.Print("Do you wish to update this package? [y\\N] ")
-					} else if strings.Compare(pkgInfo.Version, installedInfo.Version) < 0 {
-						fmt.Println("This file contains an older version of this package (" + installedInfo.Version + " -> " + pkgInfo.Version + ")")
-						fmt.Print("Do you wish to downgrade this package? (Not recommended) [y\\N] ")
-					} else if strings.Compare(pkgInfo.Version, installedInfo.Version) == 0 {
-						fmt.Println("This package is already installed on the system and is up to date")
-						fmt.Printf("Do you wish to re%s this package? [y\\N] ", verb)
-					}
-					reader := bufio.NewReader(os.Stdin)
-					text, _ := reader.ReadString('\n')
-					if strings.TrimSpace(strings.ToLower(text)) != "y" && strings.TrimSpace(strings.ToLower(text)) != "yes" {
-						fmt.Printf("Skipping package (%s)...\n", pkgInfo.Name)
-						continue
-					}
-				}
-			} else if !yesAll {
-				reader := bufio.NewReader(os.Stdin)
-				fmt.Printf("Do you wish to %s this package? [y\\N] ", verb)
-				text, _ := reader.ReadString('\n')
-				if strings.TrimSpace(strings.ToLower(text)) != "y" && strings.TrimSpace(strings.ToLower(text)) != "yes" {
-					fmt.Printf("Skipping package (%s)...\n", pkgInfo.Name)
-					continue
-				}
-			}
-
-			err = bpm_utils.InstallPackage(file, rootDir, forceInstall, buildSource, keepTempDir)
-			if err != nil {
-				if pkgInfo.Type == "source" && keepTempDir {
-					fmt.Println("BPM temp directory was created at /var/tmp/bpm_source-" + pkgInfo.Name)
-				}
-				log.Fatalf("Could not install package\nError: %s\n", err)
-			}
-			fmt.Printf("Package (%s) was successfully installed!\n", pkgInfo.Name)
-			if pkgInfo.Type == "source" && keepTempDir {
-				fmt.Println("** It is recommended you delete the temporary bpm folder in /var/tmp **")
-			}
-		}
-	case remove:
-		if os.Getuid() != 0 {
-			fmt.Println("This subcommand needs to be run with superuser permissions")
-			os.Exit(0)
-		}
-		packages := subcommandArgs
-		if len(packages) == 0 {
-			fmt.Println("No packages were given")
-			return
-		}
-		for _, pkg := range packages {
-			pkgInfo := bpm_utils.GetPackageInfo(pkg, rootDir, false)
-			if pkgInfo == nil {
-				fmt.Printf("Package (%s) could not be found\n", pkg)
-				continue
-			}
-			fmt.Print("----------------\n" + bpm_utils.CreateInfoFile(*pkgInfo))
-			fmt.Println("----------------")
-			if rootDir != "/" {
-				fmt.Println("Warning: Installing to " + rootDir)
-			}
-			if !yesAll {
-				reader := bufio.NewReader(os.Stdin)
-				fmt.Print("Do you wish to remove this package? [y\\N] ")
-				text, _ := reader.ReadString('\n')
-				if strings.TrimSpace(strings.ToLower(text)) != "y" && strings.TrimSpace(strings.ToLower(text)) != "yes" {
-					fmt.Printf("Skipping package (%s)...\n", pkgInfo.Name)
-					continue
-				}
-			}
-			err := bpm_utils.RemovePackage(pkg, rootDir)
-
-			if err != nil {
-				log.Fatalf("Could not remove package\nError: %s\n", err)
-			}
-			fmt.Printf("Package (%s) was successfully removed!\n", pkgInfo.Name)
-		}
-	case file:
-		files := subcommandArgs
-		if len(files) == 0 {
-			fmt.Println("No files were given to get which packages manage it")
-			return
-		}
-		for _, file := range files {
-			absFile, err := filepath.Abs(file)
-			if err != nil {
-				log.Fatalf("Could not get absolute path of %s", file)
-			}
-			stat, err := os.Stat(absFile)
-			if os.IsNotExist(err) {
-				log.Fatalf(absFile + " does not exist!")
-			}
-			pkgs, err := bpm_utils.GetInstalledPackages(rootDir)
-			if err != nil {
-				log.Fatalf("Could not get installed packages. Error %s", err.Error())
-			}
-
-			if !strings.HasPrefix(absFile, rootDir) {
-				log.Fatalf("Could not get relative path of %s to root path", absFile)
-			}
-			absFile, err = filepath.Rel(rootDir, absFile)
-			if err != nil {
-				log.Fatalf("Could not get relative path of %s to root path", absFile)
-			}
-			absFile = strings.TrimPrefix(absFile, "/")
-			if stat.IsDir() {
-				absFile = absFile + "/"
-			}
-
-			var pkgList []string
-			for _, pkg := range pkgs {
-				if slices.Contains(bpm_utils.GetPackageFiles(pkg, rootDir), absFile) {
-					pkgList = append(pkgList, pkg)
-				}
-			}
-			if len(pkgList) == 0 {
-				fmt.Println(absFile + " is not managed by any packages")
-			} else {
-				fmt.Println(absFile + " is managed by the following packages:")
-				for _, pkg := range pkgList {
-					fmt.Println("- " + pkg)
-				}
-			}
-		}
-	default:
-		printHelp()
-	}
-}
-
-func printHelp() {
-	fmt.Println("\033[1m------Help------\033[0m")
-	fmt.Println("\033[1m\\ Command Format /\033[0m")
-	fmt.Println("-> command format: bpm <subcommand> [-flags]...")
-	fmt.Println("-> flags will be read if passed right after the subcommand otherwise they will be read as subcommand arguments")
-	fmt.Println("\033[1m\\ Command List /\033[0m")
-	fmt.Println("-> bpm version | shows information on the installed version of bpm")
-	fmt.Println("-> bpm info [-R] | shows information on an installed package")
-	fmt.Println("       -R=<root_path> lets you define the root path which will be used")
-	fmt.Println("-> bpm list [-R, -n, -l] | lists all installed packages")
-	fmt.Println("       -R=<root_path> lets you define the root path which will be used")
-	fmt.Println("       -n shows the number of packages")
-	fmt.Println("       -l lists package names only")
-	fmt.Println("-> bpm install [-R, -y, -f, -b] <files...> | installs the following files")
-	fmt.Println("       -R=<root_path> lets you define the root path which will be used")
-	fmt.Println("       -y skips the confirmation prompt")
-	fmt.Println("       -f skips dependency and architecture checking")
-	fmt.Println("       -b creates a binary package for a source package after compilation and saves it in /var/lib/bpm/compiled")
-	fmt.Println("       -k keeps the temp directory created by BPM after source package installation")
-	fmt.Println("-> bpm remove [-R, -y] <packages...> | removes the following packages")
-	fmt.Println("       -R=<root_path> lets you define the root path which will be used")
-	fmt.Println("       -y skips the confirmation prompt")
-	fmt.Println("-> bpm file [-R] <files...> | shows what packages the following packages are managed by")
-	fmt.Println("       -R=<root_path> lets you define the root path which will be used")
-	fmt.Println("\033[1m----------------\033[0m")
-}
-
-func resolveFlags() {
-	// List flags
-	listFlagSet := flag.NewFlagSet("List flags", flag.ExitOnError)
-	listFlagSet.Usage = printHelp
-	listFlagSet.StringVar(&rootDir, "R", "/", "Set the destination root")
-	listFlagSet.BoolVar(&yesAll, "y", false, "Skip confirmation prompts")
-	listFlagSet.BoolVar(&pkgListNumbers, "n", false, "List the number of all packages installed with BPM")
-	listFlagSet.BoolVar(&pkgListNames, "l", false, "List the names of all packages installed with BPM")
-	// Info flags
-	infoFlagSet := flag.NewFlagSet("Info flags", flag.ExitOnError)
-	infoFlagSet.StringVar(&rootDir, "R", "/", "Set the destination root")
-	infoFlagSet.Usage = printHelp
-	// Install flags
-	installFlagSet := flag.NewFlagSet("Install flags", flag.ExitOnError)
-	installFlagSet.StringVar(&rootDir, "R", "/", "Set the destination root")
-	installFlagSet.BoolVar(&yesAll, "y", false, "Skip confirmation prompts")
-	installFlagSet.BoolVar(&buildSource, "b", false, "Build binary package from source package")
-	installFlagSet.BoolVar(&keepTempDir, "k", false, "Keep temporary directory after source compilation")
-	installFlagSet.BoolVar(&forceInstall, "f", false, "Force installation by skipping architecture and dependency resolution")
-	installFlagSet.Usage = printHelp
-	// Remove flags
-	removeFlagSet := flag.NewFlagSet("Remove flags", flag.ExitOnError)
-	removeFlagSet.StringVar(&rootDir, "R", "/", "Set the destination root")
-	removeFlagSet.BoolVar(&yesAll, "y", false, "Skip confirmation prompts")
-	removeFlagSet.Usage = printHelp
-	// File flags
-	// Remove flags
-	fileFlagSet := flag.NewFlagSet("Remove flags", flag.ExitOnError)
-	fileFlagSet.StringVar(&rootDir, "R", "/", "Set the destination root")
-	fileFlagSet.Usage = printHelp
-	if len(os.Args[1:]) <= 0 {
-		subcommand = "help"
-	} else {
-		subcommand = os.Args[1]
-		subcommandArgs = os.Args[2:]
-		if getCommandType() == list {
-			err := listFlagSet.Parse(subcommandArgs)
-			if err != nil {
-				return
-			}
-			subcommandArgs = listFlagSet.Args()
-		} else if getCommandType() == info {
-			err := infoFlagSet.Parse(subcommandArgs)
-			if err != nil {
-				return
-			}
-			subcommandArgs = infoFlagSet.Args()
-		} else if getCommandType() == install {
-			err := installFlagSet.Parse(subcommandArgs)
-			if err != nil {
-				return
-			}
-			subcommandArgs = installFlagSet.Args()
-		} else if getCommandType() == remove {
-			err := removeFlagSet.Parse(subcommandArgs)
-			if err != nil {
-				return
-			}
-			subcommandArgs = removeFlagSet.Args()
-		} else if getCommandType() == file {
-			err := fileFlagSet.Parse(subcommandArgs)
-			if err != nil {
-				return
-			}
-			subcommandArgs = fileFlagSet.Args()
-		}
-	}
-}

src/bpm/go.mod

@@ -0,0 +1,14 @@
+module git.enumerated.dev/bubble-package-manager/bpm/src/bpm
+
+go 1.23
+
+toolchain go1.23.7
+
+require git.enumerated.dev/bubble-package-manager/bpm/src/bpmlib v0.5.0
+
+replace git.enumerated.dev/bubble-package-manager/bpm/src/bpmlib => ../bpmlib
+
+require (
+	github.com/knqyf263/go-rpm-version v0.0.0-20240918084003-2afd7dc6a38f // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

src/bpm/go.sum

@@ -0,0 +1,6 @@
+github.com/knqyf263/go-rpm-version v0.0.0-20240918084003-2afd7dc6a38f h1:xt29M2T6STgldg+WEP51gGePQCsQvklmP2eIhPIBK3g=
+github.com/knqyf263/go-rpm-version v0.0.0-20240918084003-2afd7dc6a38f/go.mod h1:i4sF0l1fFnY1aiw08QQSwVAFxHEm311Me3WsU/X7nL0=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

src/bpm/main.go

@@ -0,0 +1,950 @@
+package main
+
+import (
+	"bufio"
+	"errors"
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"os/exec"
+	"path"
+	"path/filepath"
+	"slices"
+	"strings"
+
+	"git.enumerated.dev/bubble-package-manager/bpm/src/bpmlib"
+)
+
+/* -------------BPM | Bubble Package Manager-------------- */
+/*        Made By EnumDev (Previously CapCreeperGR)        */
+/*             A simple-to-use package manager             */
+/* ------------------------------------------------------- */
+
+var bpmVer = "0.5.0"
+
+var subcommand = "help"
+var subcommandArgs []string
+
+// Flags
+var rootDir = "/"
+var verbose = false
+var yesAll = false
+var force = false
+var pkgListNumbers = false
+var pkgListNames = false
+var reinstall = false
+var reinstallAll = false
+var installOptional = false
+var installationReason = ""
+var nosync = true
+var removeUnused = false
+var doCleanup = false
+var showDatabaseInfo = false
+var installSrcPkgDepends = false
+var skipChecks = false
+var outputDirectory = ""
+var cleanupDependencies = false
+var cleanupMakeDependencies = false
+var cleanupCompilationFiles = false
+var cleanupCompiledPackages = false
+var cleanupFetchedPackages = false
+
+func main() {
+	err := bpmlib.ReadConfig()
+	if err != nil {
+		log.Fatalf("Error: could not read BPM config: %s", err)
+	}
+	resolveFlags()
+	resolveCommand()
+}
+
+type commandType uint8
+
+const (
+	_default commandType = iota
+	help
+	info
+	list
+	search
+	install
+	update
+	sync
+	remove
+	cleanup
+	file
+	compile
+)
+
+func getCommandType() commandType {
+	switch subcommand {
+	case "version":
+		return _default
+	case "info":
+		return info
+	case "list":
+		return list
+	case "search":
+		return search
+	case "install":
+		return install
+	case "update":
+		return update
+	case "sync":
+		return sync
+	case "remove":
+		return remove
+	case "cleanup":
+		return cleanup
+	case "file":
+		return file
+	case "compile":
+		return compile
+	default:
+		return help
+	}
+}
+
+func resolveCommand() {
+	switch getCommandType() {
+	case _default:
+		fmt.Println("Bubble Package Manager (BPM)")
+		fmt.Println("Version: " + bpmVer)
+	case info:
+		packages := subcommandArgs
+		if len(packages) == 0 {
+			fmt.Println("No packages were given")
+			return
+		}
+
+		// Read local databases
+		err := bpmlib.ReadLocalDatabaseFiles()
+		if err != nil {
+			log.Fatalf("Error: could not read local databases: %s", err)
+		}
+
+		for n, pkg := range packages {
+			var info *bpmlib.PackageInfo
+			isFile := false
+			showInstallationReason := false
+			if showDatabaseInfo {
+				var err error
+				var entry *bpmlib.BPMDatabaseEntry
+				entry, _, err = bpmlib.GetDatabaseEntry(pkg)
+				if err != nil {
+					if entry = bpmlib.ResolveVirtualPackage(pkg); entry == nil {
+						log.Fatalf("Error: could not find package (%s) in any database\n", pkg)
+					}
+				}
+				info = entry.Info
+			} else if stat, err := os.Stat(pkg); err == nil && !stat.IsDir() {
+				bpmpkg, err := bpmlib.ReadPackage(pkg)
+				if err != nil {
+					log.Fatalf("Error: could not read package: %s\n", err)
+				}
+				info = bpmpkg.PkgInfo
+				isFile = true
+			} else {
+				if isVirtual, p := bpmlib.IsVirtualPackage(pkg, rootDir); isVirtual {
+					info = bpmlib.GetPackageInfo(p, rootDir)
+				} else {
+					info = bpmlib.GetPackageInfo(pkg, rootDir)
+				}
+				showInstallationReason = true
+			}
+			if info == nil {
+				log.Fatalf("Error: package (%s) is not installed\n", pkg)
+			}
+			if n != 0 {
+				fmt.Println()
+			}
+			if isFile {
+				abs, err := filepath.Abs(pkg)
+				if err != nil {
+					log.Fatalf("Error: could not get absolute path of file (%s)\n", abs)
+				}
+				fmt.Println("File: " + abs)
+			}
+			fmt.Println(bpmlib.CreateReadableInfo(true, true, true, showInstallationReason, info, rootDir))
+		}
+	case list:
+		// Read local databases
+		err := bpmlib.ReadLocalDatabaseFiles()
+		if err != nil {
+			log.Fatalf("Error: could not read local databases: %s", err)
+		}
+
+		packages, err := bpmlib.GetInstalledPackages(rootDir)
+		if err != nil {
+			log.Fatalf("Error: could not get installed packages: %s", err.Error())
+			return
+		}
+		if pkgListNumbers {
+			fmt.Println(len(packages))
+		} else if pkgListNames {
+			for _, pkg := range packages {
+				fmt.Println(pkg)
+			}
+		} else {
+			if len(packages) == 0 {
+				fmt.Println("No packages have been installed")
+				return
+			}
+			for n, pkg := range packages {
+				info := bpmlib.GetPackageInfo(pkg, rootDir)
+				if info == nil {
+					fmt.Printf("Package (%s) could not be found\n", pkg)
+					continue
+				}
+				if n != 0 {
+					fmt.Println()
+				}
+				fmt.Println(bpmlib.CreateReadableInfo(true, true, true, true, info, rootDir))
+			}
+		}
+	case search:
+		searchTerms := subcommandArgs
+		if len(searchTerms) == 0 {
+			log.Fatalf("Error: no search terms given")
+		}
+
+		// Read local databases
+		err := bpmlib.ReadLocalDatabaseFiles()
+		if err != nil {
+			log.Fatalf("Error: could not read local databases: %s", err)
+		}
+
+		for i, term := range searchTerms {
+			nameResults := make([]*bpmlib.PackageInfo, 0)
+			descResults := make([]*bpmlib.PackageInfo, 0)
+			for _, db := range bpmlib.MainBPMConfig.Databases {
+				for _, entry := range db.Entries {
+					if strings.Contains(entry.Info.Name, term) {
+						nameResults = append(nameResults, entry.Info)
+					} else if strings.Contains(entry.Info.Description, term) {
+						descResults = append(descResults, entry.Info)
+					}
+				}
+			}
+			results := append(nameResults, descResults...)
+			if len(results) == 0 {
+				log.Fatalf("Error: no results for term (%s) were found\n", term)
+			}
+			if i > 0 {
+				fmt.Println()
+			}
+			fmt.Printf("Results for term (%s)\n", term)
+			for j, result := range results {
+				fmt.Printf("%d) %s: %s (%s)\n", j+1, result.Name, result.Description, result.GetFullVersion())
+			}
+		}
+	case install:
+		// Check for required permissions
+		if os.Getuid() != 0 {
+			log.Fatalf("Error: this subcommand needs to be run with superuser permissions")
+		}
+
+		// Return if no packages are specified
+		if len(subcommandArgs) == 0 {
+			fmt.Println("No packages or files were given to install")
+			return
+		}
+
+		// Check if installationReason argument is valid
+		ir := bpmlib.InstallationReasonUnknown
+		switch installationReason {
+		case "manual":
+			ir = bpmlib.InstallationReasonManual
+		case "dependency":
+			ir = bpmlib.InstallationReasonDependency
+		case "make-dependency":
+			ir = bpmlib.InstallationReasonMakeDependency
+		case "":
+		default:
+			log.Fatalf("Error: %s is not a valid installation reason", installationReason)
+		}
+
+		// Get reinstall method
+		var reinstallMethod bpmlib.ReinstallMethod
+		if reinstallAll {
+			reinstallMethod = bpmlib.ReinstallMethodAll
+		} else if reinstall {
+			reinstallMethod = bpmlib.ReinstallMethodSpecified
+		} else {
+			reinstallMethod = bpmlib.ReinstallMethodNone
+		}
+
+		// Read local databases
+		err := bpmlib.ReadLocalDatabaseFiles()
+		if err != nil {
+			log.Fatalf("Error: could not read local databases: %s", err)
+		}
+
+		// Create installation operation
+		operation, err := bpmlib.InstallPackages(rootDir, ir, reinstallMethod, installOptional, force, verbose, subcommandArgs...)
+		if errors.As(err, &bpmlib.PackageNotFoundErr{}) || errors.As(err, &bpmlib.DependencyNotFoundErr{}) || errors.As(err, &bpmlib.PackageConflictErr{}) {
+			log.Fatalf("Error: %s", err)
+		} else if err != nil {
+			log.Fatalf("Error: could not setup operation: %s\n", err)
+		}
+
+		// Exit if operation contains no actions
+		if len(operation.Actions) == 0 {
+			fmt.Println("No action needs to be taken")
+			return
+		}
+
+		// Show operation summary
+		operation.ShowOperationSummary()
+
+		// Confirmation Prompt
+		if !yesAll {
+			reader := bufio.NewReader(os.Stdin)
+			if len(operation.Actions) == 1 {
+				fmt.Printf("Do you wish to install this package? [y\\N] ")
+			} else {
+				fmt.Printf("Do you wish to install these %d packages? [y\\N] ", len(operation.Actions))
+			}
+
+			text, _ := reader.ReadString('\n')
+			if strings.TrimSpace(strings.ToLower(text)) != "y" && strings.TrimSpace(strings.ToLower(text)) != "yes" {
+				fmt.Println("Cancelling package installation...")
+				os.Exit(1)
+			}
+		}
+
+		// Execute operation
+		err = operation.Execute(verbose, force)
+		if err != nil {
+			log.Fatalf("Error: could not complete operation: %s\n", err)
+		}
+
+		// Executing hooks
+		fmt.Println("Running hooks...")
+		err = operation.RunHooks(verbose)
+		if err != nil {
+			log.Fatalf("Error: could not run hooks: %s\n", err)
+		}
+	case update:
+		// Check for required permissions
+		if os.Getuid() != 0 {
+			log.Fatalf("Error: this subcommand needs to be run with superuser permissions")
+		}
+
+		// Read local databases if no sync
+		if nosync {
+			err := bpmlib.ReadLocalDatabaseFiles()
+			if err != nil {
+				log.Fatalf("Error: could not read local databases: %s", err)
+			}
+		}
+
+		// Create update operation
+		operation, err := bpmlib.UpdatePackages(rootDir, !nosync, installOptional, force, verbose)
+		if errors.As(err, &bpmlib.PackageNotFoundErr{}) || errors.As(err, &bpmlib.DependencyNotFoundErr{}) || errors.As(err, &bpmlib.PackageConflictErr{}) {
+			log.Fatalf("Error: %s", err)
+		} else if err != nil {
+			log.Fatalf("Error: could not setup operation: %s\n", err)
+		}
+
+		// Exit if operation contains no actions
+		if len(operation.Actions) == 0 {
+			fmt.Println("No action needs to be taken")
+			return
+		}
+
+		// Show operation summary
+		operation.ShowOperationSummary()
+
+		// Confirmation Prompt
+		if !yesAll {
+			fmt.Printf("Are you sure you wish to update all %d packages? [y\\N] ", len(operation.Actions))
+			reader := bufio.NewReader(os.Stdin)
+			text, _ := reader.ReadString('\n')
+			if strings.TrimSpace(strings.ToLower(text)) != "y" && strings.TrimSpace(strings.ToLower(text)) != "yes" {
+				fmt.Println("Cancelling package update...")
+				os.Exit(1)
+			}
+		}
+
+		// Execute operation
+		err = operation.Execute(verbose, force)
+		if err != nil {
+			log.Fatalf("Error: could not complete operation: %s\n", err)
+		}
+
+		// Executing hooks
+		fmt.Println("Running hooks...")
+		err = operation.RunHooks(verbose)
+		if err != nil {
+			log.Fatalf("Error: could not run hooks: %s\n", err)
+		}
+	case sync:
+		// Check for required permissions
+		if os.Getuid() != 0 {
+			log.Fatalf("Error: this subcommand needs to be run with superuser permissions")
+		}
+
+		// Confirmation Prompt
+		if !yesAll {
+			fmt.Printf("Are you sure you wish to sync all databases? [y\\N] ")
+			reader := bufio.NewReader(os.Stdin)
+			text, _ := reader.ReadString('\n')
+			if strings.TrimSpace(strings.ToLower(text)) != "y" && strings.TrimSpace(strings.ToLower(text)) != "yes" {
+				fmt.Println("Cancelling database synchronization...")
+				os.Exit(1)
+			}
+		}
+
+		// Sync databases
+		err := bpmlib.SyncDatabase(verbose)
+		if err != nil {
+			log.Fatalf("Error: could not sync local database: %s\n", err)
+		}
+
+		fmt.Println("All package databases synced successfully!")
+	case remove:
+		// Check for required permissions
+		if os.Getuid() != 0 {
+			log.Fatalf("Error: this subcommand needs to be run with superuser permissions")
+		}
+
+		if len(subcommandArgs) == 0 {
+			fmt.Println("No packages were given")
+			return
+		}
+
+		// Read local databases
+		err := bpmlib.ReadLocalDatabaseFiles()
+		if err != nil {
+			log.Fatalf("Error: could not read local databases: %s", err)
+		}
+
+		// Create remove operation
+		operation, err := bpmlib.RemovePackages(rootDir, removeUnused, doCleanup, subcommandArgs...)
+		if errors.As(err, &bpmlib.PackageNotFoundErr{}) || errors.As(err, &bpmlib.DependencyNotFoundErr{}) || errors.As(err, &bpmlib.PackageConflictErr{}) {
+			log.Fatalf("Error: %s", err)
+		} else if err != nil {
+			log.Fatalf("Error: could not setup operation: %s\n", err)
+		}
+
+		// Exit if operation contains no actions
+		if len(operation.Actions) == 0 {
+			fmt.Println("No action needs to be taken")
+			return
+		}
+
+		// Show operation summary
+		operation.ShowOperationSummary()
+
+		// Confirmation Prompt
+		if !yesAll {
+			fmt.Printf("Are you sure you wish to remove all %d packages? [y\\N] ", len(operation.Actions))
+			reader := bufio.NewReader(os.Stdin)
+			text, _ := reader.ReadString('\n')
+			if strings.TrimSpace(strings.ToLower(text)) != "y" && strings.TrimSpace(strings.ToLower(text)) != "yes" {
+				fmt.Println("Cancelling package removal...")
+				os.Exit(1)
+			}
+		}
+
+		// Execute operation
+		err = operation.Execute(verbose, force)
+		if err != nil {
+			log.Fatalf("Error: could not complete operation: %s\n", err)
+		}
+
+		// Executing hooks
+		fmt.Println("Running hooks...")
+		err = operation.RunHooks(verbose)
+		if err != nil {
+			log.Fatalf("Error: could not run hooks: %s\n", err)
+		}
+	case cleanup:
+		// Check for required permissions
+		if os.Getuid() != 0 {
+			log.Fatalf("Error: this subcommand needs to be run with superuser permissions")
+		}
+
+		err := bpmlib.CleanupCache(rootDir, cleanupCompilationFiles, cleanupCompiledPackages, cleanupFetchedPackages, verbose)
+		if err != nil {
+			log.Fatalf("Error: could not complete cache cleanup: %s", err)
+		}
+
+		if cleanupDependencies || cleanupMakeDependencies {
+			// Read local databases
+			err := bpmlib.ReadLocalDatabaseFiles()
+			if err != nil {
+				log.Fatalf("Error: could not read local databases: %s", err)
+			}
+
+			// Create cleanup operation
+			operation, err := bpmlib.CleanupPackages(cleanupMakeDependencies, rootDir)
+			if errors.As(err, &bpmlib.PackageNotFoundErr{}) || errors.As(err, &bpmlib.DependencyNotFoundErr{}) || errors.As(err, &bpmlib.PackageConflictErr{}) {
+				log.Fatalf("Error: %s", err)
+			} else if err != nil {
+				log.Fatalf("Error: could not setup operation: %s\n", err)
+			}
+
+			// Exit if operation contains no actions
+			if len(operation.Actions) == 0 {
+				fmt.Println("No action needs to be taken")
+				return
+			}
+
+			// Show operation summary
+			operation.ShowOperationSummary()
+
+			// Confirmation Prompt
+			if !yesAll {
+				fmt.Printf("Are you sure you wish to remove all %d packages? [y\\N] ", len(operation.Actions))
+				reader := bufio.NewReader(os.Stdin)
+				text, _ := reader.ReadString('\n')
+				if strings.TrimSpace(strings.ToLower(text)) != "y" && strings.TrimSpace(strings.ToLower(text)) != "yes" {
+					fmt.Println("Cancelling package removal...")
+					os.Exit(1)
+				}
+			}
+
+			// Execute operation
+			err = operation.Execute(verbose, force)
+			if err != nil {
+				log.Fatalf("Error: could not complete operation: %s\n", err)
+			}
+
+			// Executing hooks
+			fmt.Println("Running hooks...")
+			err = operation.RunHooks(verbose)
+			if err != nil {
+				log.Fatalf("Error: could not run hooks: %s\n", err)
+			}
+		}
+	case file:
+		files := subcommandArgs
+		if len(files) == 0 {
+			fmt.Println("No files were given to get which packages manage it")
+			return
+		}
+		for _, file := range files {
+			absFile, err := filepath.Abs(file)
+			if err != nil {
+				log.Fatalf("Error: could not get absolute path of file (%s)\n", file)
+			}
+			stat, err := os.Stat(absFile)
+			if os.IsNotExist(err) {
+				log.Fatalf("Error: file (%s) does not exist!\n", absFile)
+			}
+			pkgs, err := bpmlib.GetInstalledPackages(rootDir)
+			if err != nil {
+				log.Fatalf("Error: could not get installed packages: %s\n", err.Error())
+			}
+
+			if !strings.HasPrefix(absFile, rootDir) {
+				log.Fatalf("Error: could not get path of file (%s) relative to root path", absFile)
+			}
+			absFile, err = filepath.Rel(rootDir, absFile)
+			if err != nil {
+				log.Fatalf("Error: could not get path of file (%s) relative to root path", absFile)
+			}
+			absFile = strings.TrimPrefix(absFile, "/")
+			if stat.IsDir() {
+				absFile = absFile + "/"
+			}
+
+			var pkgList []string
+			for _, pkg := range pkgs {
+				if slices.ContainsFunc(bpmlib.GetPackage(pkg, rootDir).PkgFiles, func(entry *bpmlib.PackageFileEntry) bool {
+					return entry.Path == absFile
+				}) {
+					pkgList = append(pkgList, pkg)
+				}
+			}
+			if len(pkgList) == 0 {
+				fmt.Println(absFile + " is not managed by any packages")
+			} else {
+				fmt.Println(absFile + " is managed by the following packages:")
+				for _, pkg := range pkgList {
+					fmt.Println("- " + pkg)
+				}
+			}
+		}
+	case compile:
+		if len(subcommandArgs) == 0 {
+			fmt.Println("No source packages were given")
+			return
+		}
+
+		// Read local databases
+		err := bpmlib.ReadLocalDatabaseFiles()
+		if err != nil {
+			log.Fatalf("Error: could not read local databases: %s", err)
+		}
+
+		// Compile packages
+		for _, sourcePackage := range subcommandArgs {
+			if _, err := os.Stat(sourcePackage); os.IsNotExist(err) {
+				log.Fatalf("Error: file (%s) does not exist!", sourcePackage)
+			}
+
+			// Read archive
+			bpmpkg, err := bpmlib.ReadPackage(sourcePackage)
+			if err != nil {
+				log.Fatalf("Could not read package (%s): %s", sourcePackage, err)
+			}
+
+			// Ensure archive is source BPM package
+			if bpmpkg.PkgInfo.Type != "source" {
+				log.Fatalf("Error: cannot compile a non-source package!")
+			}
+
+			// Get direct runtime and make dependencies
+			totalDepends := make([]string, 0)
+			for _, depend := range bpmpkg.PkgInfo.GetDependencies(true, false) {
+				if !slices.Contains(totalDepends, depend.PkgName) {
+					totalDepends = append(totalDepends, depend.PkgName)
+				}
+			}
+
+			// Get unmet dependencies
+			unmetDepends := slices.Clone(totalDepends)
+			installedPackages, err := bpmlib.GetInstalledPackages("/")
+			if err != nil {
+				log.Fatalf("Error: could not get installed packages: %s\n", err)
+			}
+			for i := len(unmetDepends) - 1; i >= 0; i-- {
+				if slices.Contains(installedPackages, unmetDepends[i]) {
+					unmetDepends = append(unmetDepends[:i], unmetDepends[i+1:]...)
+				} else if ok, _ := bpmlib.IsVirtualPackage(unmetDepends[i], rootDir); ok {
+					unmetDepends = append(unmetDepends[:i], unmetDepends[i+1:]...)
+				}
+			}
+
+			// Install missing source package dependencies
+			if installSrcPkgDepends && len(unmetDepends) > 0 {
+				// Get path to current executable
+				executable, err := os.Executable()
+				if err != nil {
+					log.Fatalf("Error: could not get path to executable: %s\n", err)
+				}
+
+				// Run 'bpm install' using the set privilege escalator command
+				args := []string{executable, "install", "--installation-reason=make-dependency"}
+				args = append(args, unmetDepends...)
+				cmd := exec.Command(bpmlib.CompilationBPMConfig.PrivilegeEscalatorCmd, args...)
+				if yesAll {
+					cmd.Args = slices.Insert(cmd.Args, 3, "-y")
+				}
+				cmd.Stdout = os.Stdout
+				cmd.Stderr = os.Stderr
+				cmd.Stdin = os.Stdin
+				if verbose {
+					fmt.Println("Running command: " + cmd.String())
+				}
+				err = cmd.Run()
+				if err != nil {
+					log.Fatalf("Error: dependency installation command failed: %s\n", err)
+				}
+			} else {
+				// Ensure the required dependencies are installed
+				if len(unmetDepends) != 0 {
+					log.Fatalf("Error: could not resolve dependencies: the following dependencies were not found in any databases: " + strings.Join(unmetDepends, ", "))
+				}
+			}
+
+			// Get current working directory
+			workdir, err := os.Getwd()
+			if err != nil {
+				log.Fatalf("Error: could not get working directory: %s", err)
+			}
+
+			// Get user home directory
+			homedir, err := os.UserHomeDir()
+			if err != nil {
+				log.Fatalf("Error: could not get user home directory: %s", err)
+			}
+
+			// Trim output directory
+			outputDirectory = strings.TrimSpace(outputDirectory)
+			if outputDirectory != "/" {
+				outputDirectory = strings.TrimSuffix(outputDirectory, "/")
+			}
+
+			// Set output directory if empty
+			if outputDirectory == "" {
+				outputDirectory = workdir
+			}
+
+			// Replace first tilde with user home directory
+			if strings.Split(outputDirectory, "/")[0] == "~" {
+				outputDirectory = strings.Replace(outputDirectory, "~", homedir, 1)
+			}
+
+			// Prepend current working directory to output directory if not an absolute path
+			if outputDirectory != "" && !strings.HasPrefix(outputDirectory, "/") {
+				outputDirectory = filepath.Join(workdir, outputDirectory)
+			}
+
+			// Clean path
+			path.Clean(outputDirectory)
+
+			// Ensure output directory exists and is a directory
+			stat, err := os.Stat(outputDirectory)
+			if err != nil {
+				log.Fatalf("Error: could not stat output directory (%s): %s", outputDirectory, err)
+			}
+			if !stat.IsDir() {
+				log.Fatalf("Error: output directory (%s) is not a directory", outputDirectory)
+			}
+
+			outputBpmPackages, err := bpmlib.CompileSourcePackage(sourcePackage, outputDirectory, skipChecks)
+			if err != nil {
+				log.Fatalf("Error: could not compile source package (%s): %s", sourcePackage, err)
+			}
+
+			for k, v := range outputBpmPackages {
+				fmt.Printf("Package (%s) was successfully compiled! Binary package generated at: %s\n", k, v)
+			}
+
+			// Remove unused packages
+			if installSrcPkgDepends && len(unmetDepends) > 0 {
+				// Get path to current executable
+				executable, err := os.Executable()
+				if err != nil {
+					log.Fatalf("Error: could not get path to executable: %s\n", err)
+				}
+
+				// Run 'bpm cleanup' using the set privilege escalator command
+				cmd := exec.Command(bpmlib.CompilationBPMConfig.PrivilegeEscalatorCmd, executable, "cleanup")
+				if yesAll {
+					cmd.Args = slices.Insert(cmd.Args, 3, "-y")
+				}
+				cmd.Stdout = os.Stdout
+				cmd.Stderr = os.Stderr
+				cmd.Stdin = os.Stdin
+				if verbose {
+					fmt.Println("Running command: " + cmd.String())
+				}
+				err = cmd.Run()
+				if err != nil {
+					log.Fatalf("Error: dependency cleanup command failed: %s\n", err)
+				}
+			}
+		}
+
+	default:
+		printHelp()
+	}
+}
+
+func printHelp() {
+	fmt.Println("\033[1m---- Command Format ----\033[0m")
+	fmt.Println("-> command format: bpm <subcommand> [-flags]...")
+	fmt.Println("-> flags will be read if passed right after the subcommand otherwise they will be read as subcommand arguments")
+	fmt.Println("\033[1m---- Command List ----\033[0m")
+	fmt.Println("-> bpm version | shows information on the installed version of bpm")
+	fmt.Println("-> bpm info [-R, --databases] <packages...> | shows information on an installed package")
+	fmt.Println("       -R=<path> lets you define the root path which will be used")
+	fmt.Println("       --databases show information on package in configured databases")
+	fmt.Println("-> bpm list [-R, -c, -n] | lists all installed packages")
+	fmt.Println("       -R=<path> lets you define the root path which will be used")
+	fmt.Println("       -c lists the amount of installed packages")
+	fmt.Println("       -n lists only the names of installed packages")
+	fmt.Println("-> bpm search <search terms...> | Searches for packages through configured databases")
+	fmt.Println("-> bpm install [-R, -v, -y, -f, --reinstall, --reinstall-all, --no-optional, --installation-reason] <packages...> | installs the following files")
+	fmt.Println("       -R=<path> lets you define the root path which will be used")
+	fmt.Println("       -v Show additional information about what BPM is doing")
+	fmt.Println("       -y skips the confirmation prompt")
+	fmt.Println("       -f skips dependency, conflict and architecture checking")
+	fmt.Println("       --reinstall Reinstalls packages even if they do not have a newer version available")
+	fmt.Println("       --reinstall-all Same as --reinstall but also reinstalls dependencies")
+	fmt.Println("       --optional Installs all optional dependencies")
+	fmt.Println("       --installation-reason=<manual/dependency> sets the installation reason for all newly installed packages")
+	fmt.Println("-> bpm update [-R, -v, -y, -f, --reinstall, --no-sync] | updates all packages that are available in the configured databases")
+	fmt.Println("       -R=<path> lets you define the root path which will be used")
+	fmt.Println("       -v Show additional information about what BPM is doing")
+	fmt.Println("       -y skips the confirmation prompt")
+	fmt.Println("       -f skips dependency, conflict and architecture checking")
+	fmt.Println("       --reinstall Fetches and reinstalls all packages even if they do not have a newer version available")
+	fmt.Println("       --no-sync Skips package database syncing")
+	fmt.Println("-> bpm sync [-R, -v, -y] | Syncs package databases without updating packages")
+	fmt.Println("       -R=<path> lets you define the root path which will be used")
+	fmt.Println("       -v Show additional information about what BPM is doing")
+	fmt.Println("       -y skips the confirmation prompt")
+	fmt.Println("-> bpm remove [-R, -v, -y, --unused, --cleanup] <packages...> | removes the following packages")
+	fmt.Println("       -v Show additional information about what BPM is doing")
+	fmt.Println("       -R=<path> lets you define the root path which will be used")
+	fmt.Println("       -y skips the confirmation prompt")
+	fmt.Println("       --unused removes only packages that aren't required as dependencies by other packages")
+	fmt.Println("       --cleanup performs a dependency cleanup")
+	fmt.Println("-> bpm cleanup [-R, -v, -y, --depends, --compilation-files, --compiled-pkgs, --fetched-pkgs] | remove all unused dependencies and cache directories")
+	fmt.Println("       -v Show additional information about what BPM is doing")
+	fmt.Println("       -R=<path> lets you define the root path which will be used")
+	fmt.Println("       -y skips the confirmation prompt")
+	fmt.Println("       --depends performs a dependency cleanup")
+	fmt.Println("       --make-depends performs a make dependency cleanup")
+	fmt.Println("       --compilation-files performs a cleanup of compilation files")
+	fmt.Println("       --compiled-pkgs performs a cleanup of compilation compiled binary packages")
+	fmt.Println("       --fetched-pkgs performs a cleanup of fetched packages from databases")
+	fmt.Println("-> bpm file [-R] <files...> | shows what packages the following packages are managed by")
+	fmt.Println("       -R=<root_path> lets you define the root path which will be used")
+	fmt.Println("-> bpm compile [-d, -s, -o] <source packages...> | Compile source BPM package")
+	fmt.Println("       -v Show additional information about what BPM is doing")
+	fmt.Println("       -d installs required dependencies for package compilation")
+	fmt.Println("       -s skips the check function in source.sh scripts")
+	fmt.Println("       -o sets output directory")
+	fmt.Println("       -y skips the confirmation prompt")
+
+	fmt.Println("\033[1m----------------\033[0m")
+}
+
+func resolveFlags() {
+	// List flags
+	listFlagSet := flag.NewFlagSet("List flags", flag.ExitOnError)
+	listFlagSet.Usage = printHelp
+	listFlagSet.StringVar(&rootDir, "R", "/", "Set the destination root")
+	listFlagSet.BoolVar(&pkgListNumbers, "c", false, "List the number of all packages installed with BPM")
+	listFlagSet.BoolVar(&pkgListNames, "n", false, "List the names of all packages installed with BPM")
+	// Info flags
+	infoFlagSet := flag.NewFlagSet("Info flags", flag.ExitOnError)
+	infoFlagSet.StringVar(&rootDir, "R", "/", "Set the destination root")
+	infoFlagSet.BoolVar(&showDatabaseInfo, "databases", false, "Show information on package in configured databases")
+	infoFlagSet.Usage = printHelp
+	// Install flags
+	installFlagSet := flag.NewFlagSet("Install flags", flag.ExitOnError)
+	installFlagSet.StringVar(&rootDir, "R", "/", "Set the destination root")
+	installFlagSet.BoolVar(&verbose, "v", false, "Show additional information about what BPM is doing")
+	installFlagSet.BoolVar(&yesAll, "y", false, "Skip confirmation prompts")
+	installFlagSet.BoolVar(&force, "f", false, "Force installation by skipping architecture and dependency resolution")
+	installFlagSet.BoolVar(&reinstall, "reinstall", false, "Reinstalls packages even if they do not have a newer version available")
+	installFlagSet.BoolVar(&reinstallAll, "reinstall-all", false, "Same as --reinstall but also reinstalls dependencies")
+	installFlagSet.BoolVar(&installOptional, "optional", false, "Installs all optional dependencies")
+	installFlagSet.StringVar(&installationReason, "installation-reason", "", "Set the installation reason for all newly installed packages")
+	installFlagSet.Usage = printHelp
+	// Update flags
+	updateFlagSet := flag.NewFlagSet("Update flags", flag.ExitOnError)
+	updateFlagSet.StringVar(&rootDir, "R", "/", "Set the destination root")
+	updateFlagSet.BoolVar(&verbose, "v", false, "Show additional information about what BPM is doing")
+	updateFlagSet.BoolVar(&yesAll, "y", false, "Skip confirmation prompts")
+	updateFlagSet.BoolVar(&force, "f", false, "Force update by skipping architecture and dependency resolution")
+	updateFlagSet.BoolVar(&nosync, "no-sync", false, "Skips package database syncing")
+	updateFlagSet.Usage = printHelp
+	// Sync flags
+	syncFlagSet := flag.NewFlagSet("Sync flags", flag.ExitOnError)
+	syncFlagSet.StringVar(&rootDir, "R", "/", "Set the destination root")
+	syncFlagSet.BoolVar(&verbose, "v", false, "Show additional information about what BPM is doing")
+	syncFlagSet.BoolVar(&yesAll, "y", false, "Skip confirmation prompts")
+	syncFlagSet.Usage = printHelp
+	// Remove flags
+	removeFlagSet := flag.NewFlagSet("Remove flags", flag.ExitOnError)
+	removeFlagSet.StringVar(&rootDir, "R", "/", "Set the destination root")
+	removeFlagSet.BoolVar(&verbose, "v", false, "Show additional information about what BPM is doing")
+	removeFlagSet.BoolVar(&yesAll, "y", false, "Skip confirmation prompts")
+	removeFlagSet.BoolVar(&removeUnused, "unused", false, "Removes only packages that aren't required as dependencies by other packages")
+	removeFlagSet.BoolVar(&doCleanup, "cleanup", false, "Perform a dependency cleanup")
+	removeFlagSet.Usage = printHelp
+	// Cleanup flags
+	cleanupFlagSet := flag.NewFlagSet("Cleanup flags", flag.ExitOnError)
+	cleanupFlagSet.StringVar(&rootDir, "R", "/", "Set the destination root")
+	cleanupFlagSet.BoolVar(&verbose, "v", false, "Show additional information about what BPM is doing")
+	cleanupFlagSet.BoolVar(&yesAll, "y", false, "Skip confirmation prompts")
+	cleanupFlagSet.BoolVar(&cleanupDependencies, "depends", false, "Perform a dependency cleanup")
+	cleanupFlagSet.BoolVar(&cleanupMakeDependencies, "make-depends", false, "Perform a make dependency cleanup")
+	cleanupFlagSet.BoolVar(&cleanupCompilationFiles, "compilation-files", false, "Perform a cleanup of compilation files")
+	cleanupFlagSet.BoolVar(&cleanupCompiledPackages, "compiled-pkgs", false, "Perform a cleanup of compilation compiled binary packages")
+	cleanupFlagSet.BoolVar(&cleanupFetchedPackages, "fetched-pkgs", false, "Perform a cleanup of fetched packages from databases")
+	cleanupFlagSet.Usage = printHelp
+	// File flags
+	fileFlagSet := flag.NewFlagSet("Remove flags", flag.ExitOnError)
+	fileFlagSet.StringVar(&rootDir, "R", "/", "Set the destination root")
+	fileFlagSet.Usage = printHelp
+	// Compile flags
+	compileFlagSet := flag.NewFlagSet("Compile flags", flag.ExitOnError)
+	compileFlagSet.BoolVar(&installSrcPkgDepends, "d", false, "Install required dependencies for package compilation")
+	compileFlagSet.BoolVar(&skipChecks, "s", false, "Skip the check function in source.sh scripts")
+	compileFlagSet.StringVar(&outputDirectory, "o", "", "Set output directory")
+	compileFlagSet.BoolVar(&verbose, "v", false, "Show additional information about what BPM is doing")
+	compileFlagSet.BoolVar(&yesAll, "y", false, "Skip confirmation prompts")
+	compileFlagSet.Usage = printHelp
+
+	isFlagSet := func(flagSet *flag.FlagSet, name string) bool {
+		found := false
+		flagSet.Visit(func(f *flag.Flag) {
+			if f.Name == name {
+				found = true
+			}
+		})
+		return found
+	}
+
+	if len(os.Args[1:]) <= 0 {
+		subcommand = "help"
+	} else {
+		subcommand = os.Args[1]
+		subcommandArgs = os.Args[2:]
+		if getCommandType() == list {
+			err := listFlagSet.Parse(subcommandArgs)
+			if err != nil {
+				return
+			}
+			subcommandArgs = listFlagSet.Args()
+		} else if getCommandType() == info {
+			err := infoFlagSet.Parse(subcommandArgs)
+			if err != nil {
+				return
+			}
+			subcommandArgs = infoFlagSet.Args()
+		} else if getCommandType() == install {
+			err := installFlagSet.Parse(subcommandArgs)
+			if err != nil {
+				return
+			}
+			subcommandArgs = installFlagSet.Args()
+		} else if getCommandType() == update {
+			err := updateFlagSet.Parse(subcommandArgs)
+			if err != nil {
+				return
+			}
+			subcommandArgs = updateFlagSet.Args()
+		} else if getCommandType() == sync {
+			err := syncFlagSet.Parse(subcommandArgs)
+			if err != nil {
+				return
+			}
+			subcommandArgs = syncFlagSet.Args()
+		} else if getCommandType() == remove {
+			err := removeFlagSet.Parse(subcommandArgs)
+			if err != nil {
+				return
+			}
+			subcommandArgs = removeFlagSet.Args()
+		} else if getCommandType() == cleanup {
+			err := cleanupFlagSet.Parse(subcommandArgs)
+			if err != nil {
+				return
+			}
+			if !isFlagSet(cleanupFlagSet, "depends") && !isFlagSet(cleanupFlagSet, "make-depends") && !isFlagSet(cleanupFlagSet, "compilation-files") && !isFlagSet(cleanupFlagSet, "compiled-pkgs") && !isFlagSet(cleanupFlagSet, "fetched-pkgs") {
+				cleanupDependencies = true
+				cleanupMakeDependencies = bpmlib.MainBPMConfig.CleanupMakeDependencies
+				cleanupCompilationFiles = true
+				cleanupCompiledPackages = true
+				cleanupFetchedPackages = true
+			}
+			subcommandArgs = cleanupFlagSet.Args()
+		} else if getCommandType() == file {
+			err := fileFlagSet.Parse(subcommandArgs)
+			if err != nil {
+				return
+			}
+			subcommandArgs = fileFlagSet.Args()
+		} else if getCommandType() == compile {
+			err := compileFlagSet.Parse(subcommandArgs)
+			if err != nil {
+				return
+			}
+			subcommandArgs = compileFlagSet.Args()
+		}
+		if reinstallAll {
+			reinstall = true
+		}
+	}
+}

src/bpmlib/compilation.go

@@ -0,0 +1,383 @@
+package bpmlib
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"os/exec"
+	"path"
+	"strconv"
+	"strings"
+	"syscall"
+
+	"gopkg.in/yaml.v3"
+)
+
+var rootCompilationUID = "65534"
+var rootCompilationGID = "65534"
+
+func CompileSourcePackage(archiveFilename, outputDirectory string, skipChecks bool) (outputBpmPackages map[string]string, err error) {
+	// Initialize map
+	outputBpmPackages = make(map[string]string)
+
+	// Read BPM archive
+	bpmpkg, err := ReadPackage(archiveFilename)
+	if err != nil {
+		return nil, err
+	}
+
+	// Ensure package type is 'source'
+	if bpmpkg.PkgInfo.Type != "source" {
+		return nil, errors.New("cannot compile a non-source package")
+	}
+
+	// Read compilation options file in current directory
+	compilationOptions, err := readCompilationOptionsFile()
+	if err != nil {
+		return nil, err
+	}
+
+	// Get HOME directory
+	homeDir, err := os.UserHomeDir()
+	if err != nil {
+		return nil, err
+	}
+
+	// Get UID and GID to use for compilation
+	var uid, gid int
+	if os.Getuid() == 0 {
+		_uid, err := strconv.ParseInt(rootCompilationUID, 10, 32)
+		if err != nil {
+			return nil, fmt.Errorf("could not convert UID '%s' to int", rootCompilationUID)
+		}
+		_gid, err := strconv.ParseInt(rootCompilationGID, 10, 32)
+		if err != nil {
+			return nil, fmt.Errorf("could not convert GID '%s' to int", rootCompilationGID)
+		}
+		uid = int(_uid)
+		gid = int(_gid)
+	} else {
+		uid = os.Getuid()
+		gid = os.Getgid()
+	}
+
+	// Set temporary directory
+	var tempDirectory string
+	if os.Getuid() == 0 {
+		tempDirectory = path.Join("/var/cache/bpm/compilation/", bpmpkg.PkgInfo.Name)
+	} else {
+		tempDirectory = path.Join(homeDir, ".cache/bpm/compilation/", bpmpkg.PkgInfo.Name)
+	}
+
+	// Ensure temporary directory does not exist
+	if _, err := os.Stat(tempDirectory); err == nil {
+		err := os.RemoveAll(tempDirectory)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	// Create temporary directory
+	err = os.MkdirAll(tempDirectory, 0755)
+	if err != nil {
+		return nil, err
+	}
+
+	// Change temporary directory owner
+	err = os.Chown(tempDirectory, uid, gid)
+	if err != nil {
+		return nil, err
+	}
+
+	// Extract source.sh file
+	err = extractTarballFile(archiveFilename, "source.sh", tempDirectory, uid, gid)
+	if err != nil {
+		return nil, err
+	}
+
+	// Get package scripts and extract them
+	packageScripts := getPackageScripts(archiveFilename)
+	for _, script := range packageScripts {
+		err = extractTarballFile(archiveFilename, script, tempDirectory, uid, gid)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	// Extract source files
+	err = extractTarballDirectory(archiveFilename, "source-files", tempDirectory, uid, gid)
+	if err != nil {
+		return nil, err
+	}
+
+	// Create source directory
+	err = os.Mkdir(path.Join(tempDirectory, "source"), 0755)
+	if err != nil {
+		return nil, err
+	}
+
+	// Change source directory owner
+	err = os.Chown(path.Join(tempDirectory, "source"), uid, gid)
+	if err != nil {
+		return nil, err
+	}
+
+	// Setup environment for commands
+	env := os.Environ()
+	env = append(env, "HOME="+tempDirectory)
+	env = append(env, "BPM_WORKDIR="+tempDirectory)
+	env = append(env, "BPM_SOURCE="+path.Join(tempDirectory, "source"))
+	env = append(env, "BPM_OUTPUT="+path.Join(tempDirectory, "output"))
+	env = append(env, "BPM_PKG_NAME="+bpmpkg.PkgInfo.Name)
+	env = append(env, "BPM_PKG_VERSION="+bpmpkg.PkgInfo.Version)
+	env = append(env, "BPM_PKG_REVISION="+strconv.Itoa(bpmpkg.PkgInfo.Revision))
+	// Check for architecture override in compilation options
+	if val, ok := compilationOptions["ARCH"]; ok {
+		env = append(env, "BPM_PKG_ARCH="+val)
+	} else {
+		env = append(env, "BPM_PKG_ARCH="+GetArch())
+	}
+	env = append(env, CompilationBPMConfig.CompilationEnvironment...)
+
+	// Execute prepare and build functions in source.sh script
+	cmd := exec.Command("bash", "-c",
+		"set -a\n"+ // Source and export functions and variables in source.sh script
+			". \"${BPM_WORKDIR}\"/source.sh\n"+
+			"set +a\n"+
+			"[[ $(type -t prepare) == \"function\" ]] && { echo \"Running prepare() function\"; bash -e -c 'cd \"$BPM_WORKDIR\" && prepare' || exit 1; }\n"+ // Run prepare() function if it exists
+			"[[ $(type -t build) == \"function\" ]] && { echo \"Running build() function\"; bash -e -c 'cd \"$BPM_SOURCE\" && build'  || exit 1; }\n"+ // Run build() function if it exists
+			"exit 0")
+	cmd.Dir = tempDirectory
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	cmd.Env = env
+	if os.Getuid() == 0 {
+		cmd.SysProcAttr = &syscall.SysProcAttr{}
+		cmd.SysProcAttr.Credential = &syscall.Credential{Uid: uint32(uid), Gid: uint32(gid)}
+	}
+	err = cmd.Run()
+	if err != nil {
+		return nil, err
+	}
+
+	// Execute check function in source.sh script if not skipping checks
+	if !skipChecks {
+		cmd = exec.Command("bash", "-c",
+			"set -a\n"+ // Source and export functions and variables in source.sh script
+				". \"${BPM_WORKDIR}\"/source.sh\n"+
+				"set +a\n"+
+				"[[ $(type -t check) == \"function\" ]] && { echo \"Running check() function\"; bash -e -c 'cd \"$BPM_SOURCE\" && check' || exit 1; }\n"+ // Run check() function if it exists
+				"exit 0")
+		cmd.Dir = tempDirectory
+		cmd.Stdout = os.Stdout
+		cmd.Stderr = os.Stderr
+		cmd.Env = env
+		if os.Getuid() == 0 {
+			cmd.SysProcAttr = &syscall.SysProcAttr{}
+			cmd.SysProcAttr.Credential = &syscall.Credential{Uid: uint32(uid), Gid: uint32(gid)}
+		}
+		err = cmd.Run()
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	// Get all packages to compile
+	packagesToCompile := bpmpkg.PkgInfo.SplitPackages
+	if !bpmpkg.PkgInfo.IsSplitPackage() {
+		packagesToCompile = append(packagesToCompile, bpmpkg.PkgInfo)
+	}
+
+	// Compile each package
+	for _, pkg := range packagesToCompile {
+		// Get package function name
+		packageFunctionName := "package"
+		if bpmpkg.PkgInfo.IsSplitPackage() {
+			packageFunctionName = "package_" + pkg.Name
+		}
+
+		// Remove output directory if it already exists
+		if _, err := os.Stat(path.Join(tempDirectory, "output")); err == nil {
+			err := os.RemoveAll(path.Join(tempDirectory, "output"))
+			if err != nil {
+				return nil, err
+			}
+		}
+
+		// Create new output directory
+		err = os.Mkdir(path.Join(tempDirectory, "output"), 0755)
+		if err != nil {
+			return nil, err
+		}
+
+		// Change output directory owner
+		err = os.Chown(path.Join(tempDirectory, "output"), uid, gid)
+		if err != nil {
+			return nil, err
+		}
+
+		// Execute package function in source.sh script and generate package file list
+		cmd = exec.Command("bash", "-c",
+			"set -a\n"+ // Source and export functions and variables in source.sh script
+				". \"${BPM_WORKDIR}\"/source.sh\n"+
+				"set +a\n"+
+				"echo \"Running "+packageFunctionName+"() function\"\n"+
+				"( cd \"$BPM_SOURCE\" && fakeroot -s \"$BPM_WORKDIR\"/fakeroot_file bash -e -c '"+packageFunctionName+"' ) || exit 1\n"+ // Run package() function
+				"fakeroot -i \"$BPM_WORKDIR\"/fakeroot_file find \"$BPM_OUTPUT\" -mindepth 1 -printf \"%P %#m %U %G %s\\n\" > \"$BPM_WORKDIR\"/pkg.files") // Create package file list
+		cmd.Dir = tempDirectory
+		cmd.Stdout = os.Stdout
+		cmd.Stderr = os.Stderr
+		cmd.Env = env
+		if os.Getuid() == 0 {
+			cmd.SysProcAttr = &syscall.SysProcAttr{}
+			cmd.SysProcAttr.Credential = &syscall.Credential{Uid: uint32(uid), Gid: uint32(gid)}
+		}
+		err = cmd.Run()
+		if err != nil {
+			return nil, err
+		}
+
+		// Create gzip-compressed archive for the package files
+		cmd = exec.Command("bash", "-c", "find output -printf \"%P\\n\" | fakeroot -i \"$BPM_WORKDIR\"/fakeroot_file tar -czf files.tar.gz --no-recursion -C output -T -")
+		cmd.Dir = tempDirectory
+		cmd.Stdout = os.Stdout
+		cmd.Stderr = os.Stderr
+		cmd.Env = env
+		if os.Getuid() == 0 {
+			cmd.SysProcAttr = &syscall.SysProcAttr{}
+			cmd.SysProcAttr.Credential = &syscall.Credential{Uid: uint32(uid), Gid: uint32(gid)}
+		}
+		err = cmd.Run()
+		if err != nil {
+			return nil, fmt.Errorf("files.tar.gz archive could not be created: %s", err)
+		}
+
+		// Clone source package info
+		pkgInfo := *pkg
+
+		// Set package type to binary
+		pkgInfo.Type = "binary"
+
+		// Set package architecture
+		if val, ok := compilationOptions["ARCH"]; ok {
+			pkgInfo.Arch = val
+		} else {
+			pkgInfo.Arch = GetArch()
+		}
+
+		// Remove split package field
+		pkgInfo.SplitPackages = nil
+
+		// Marshal package info
+		pkgInfoBytes, err := yaml.Marshal(pkgInfo)
+		if err != nil {
+			return nil, err
+		}
+		pkgInfoBytes = append(pkgInfoBytes, '\n')
+
+		// Create pkg.info file
+		err = os.WriteFile(path.Join(tempDirectory, "pkg.info"), pkgInfoBytes, 0644)
+		if err != nil {
+			return nil, err
+		}
+
+		// Change pkg.info file owner
+		err = os.Chown(path.Join(tempDirectory, "pkg.info"), uid, gid)
+		if err != nil {
+			return nil, err
+		}
+
+		// Get files to include in BPM archive
+		bpmArchiveFiles := make([]string, 0)
+		bpmArchiveFiles = append(bpmArchiveFiles, "pkg.info", "pkg.files", "files.tar.gz") // Base files
+		bpmArchiveFiles = append(bpmArchiveFiles, packageScripts...)                       // Package scripts
+
+		// Create final BPM archive
+		cmd = exec.Command("bash", "-c", "tar -cf final-archive.bpm --owner=0 --group=0 -C \"$BPM_WORKDIR\" "+strings.Join(bpmArchiveFiles, " "))
+		cmd.Dir = tempDirectory
+		cmd.Stdout = os.Stdout
+		cmd.Stderr = os.Stderr
+		currentDir, err := os.Getwd()
+		if err != nil {
+			return nil, err
+		}
+		cmd.Env = append(env, "CURRENT_DIR="+currentDir)
+		if os.Getuid() == 0 {
+			cmd.SysProcAttr = &syscall.SysProcAttr{}
+			cmd.SysProcAttr.Credential = &syscall.Credential{Uid: uint32(uid), Gid: uint32(gid)}
+		}
+		err = cmd.Run()
+		if err != nil {
+			return nil, fmt.Errorf("BPM archive could not be created: %s", err)
+		}
+
+		// Remove pkg.info file
+		err = os.Remove(path.Join(tempDirectory, "pkg.info"))
+		if err != nil {
+			return nil, err
+		}
+
+		// Set output filename
+		outputFilename := path.Join(outputDirectory, fmt.Sprintf("%s-%s-%d-%s.bpm", pkgInfo.Name, pkgInfo.Version, pkgInfo.Revision, pkgInfo.Arch))
+
+		// Move final BPM archive
+		err = os.Rename(path.Join(tempDirectory, "final-archive.bpm"), outputFilename)
+		if err != nil {
+			return nil, err
+		}
+
+		// Set final BPM archive owner
+		err = os.Chown(outputFilename, os.Getuid(), os.Getgid())
+		if err != nil {
+			return nil, err
+		}
+
+		outputBpmPackages[pkgInfo.Name] = outputFilename
+	}
+
+	return outputBpmPackages, nil
+}
+
+func readCompilationOptionsFile() (options map[string]string, err error) {
+	// Initialize options map
+	options = make(map[string]string)
+
+	// Check if file compilation options file exists
+	stat, err := os.Stat(".compilation-options")
+	if err != nil {
+		return nil, nil
+	}
+
+	// Ensure it is a regular file
+	if !stat.Mode().IsRegular() {
+		return nil, fmt.Errorf("%s is not a regular file", stat.Name())
+	}
+
+	// Read file data
+	data, err := os.ReadFile(stat.Name())
+	if err != nil {
+		return nil, err
+	}
+
+	for _, line := range strings.Split(string(data), "\n") {
+		// Trim line
+		line = strings.TrimSpace(line)
+
+		// Skip empty lines
+		if line == "" {
+			continue
+		}
+
+		// Split line
+		split := strings.SplitN(line, "=", 2)
+
+		// Throw error if line isn't valid
+		if len(split) < 2 {
+			return nil, fmt.Errorf("invalid line in compilation-options file: '%s'", line)
+		}
+
+		options[split[0]] = split[1]
+	}
+
+	return options, nil
+}

src/bpmlib/config.go

@@ -0,0 +1,63 @@
+package bpmlib
+
+import (
+	"os"
+
+	"gopkg.in/yaml.v3"
+)
+
+type MainBPMConfigStruct struct {
+	IgnorePackages          []string       `yaml:"ignore_packages"`
+	CleanupMakeDependencies bool           `yaml:"cleanup_make_dependencies"`
+	Databases               []*BPMDatabase `yaml:"databases"`
+}
+
+type CompilationBPMConfigStruct struct {
+	PrivilegeEscalatorCmd  string   `yaml:"privilege_escalator_cmd"`
+	CompilationEnvironment []string `yaml:"compilation_env"`
+}
+
+var MainBPMConfig MainBPMConfigStruct
+var CompilationBPMConfig CompilationBPMConfigStruct
+
+func ReadConfig() (err error) {
+	var file *os.File
+
+	// Set default config options
+	MainBPMConfig = MainBPMConfigStruct{
+		CleanupMakeDependencies: true,
+	}
+
+	// Read main BPM config
+	file, err = os.Open("/etc/bpm.conf")
+	if err != nil {
+		return err
+	}
+	err = yaml.NewDecoder(file).Decode(&MainBPMConfig)
+	if err != nil {
+		return err
+	}
+	file.Close()
+
+	// Read compilation BPM config
+	if _, err := os.Stat("/etc/bpm-compilation.conf"); err == nil {
+		file, err = os.Open("/etc/bpm-compilation.conf")
+		if err != nil {
+			return err
+		}
+		err = yaml.NewDecoder(file).Decode(&CompilationBPMConfig)
+		if err != nil {
+			return err
+		}
+		file.Close()
+	}
+
+	// Remove disabled databases from memory
+	for i := len(MainBPMConfig.Databases) - 1; i >= 0; i-- {
+		if MainBPMConfig.Databases[i].Disabled != nil && *MainBPMConfig.Databases[i].Disabled {
+			MainBPMConfig.Databases = append(MainBPMConfig.Databases[:i], MainBPMConfig.Databases[i+1:]...)
+		}
+	}
+
+	return nil
+}

src/bpmlib/databases.go

@@ -0,0 +1,282 @@
+package bpmlib
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"os"
+	"path"
+	"strings"
+
+	"gopkg.in/yaml.v3"
+)
+
+type BPMDatabase struct {
+	Name            string `yaml:"name"`
+	Source          string `yaml:"source"`
+	Disabled        *bool  `yaml:"disabled"`
+	Entries         map[string]*BPMDatabaseEntry
+	VirtualPackages map[string][]string
+}
+
+type BPMDatabaseEntry struct {
+	Info          *PackageInfo `yaml:"info"`
+	Download      string       `yaml:"download"`
+	DownloadSize  uint64       `yaml:"download_size"`
+	InstalledSize uint64       `yaml:"installed_size"`
+	Database      *BPMDatabase
+}
+
+func (db *BPMDatabase) ContainsPackage(pkg string) bool {
+	_, ok := db.Entries[pkg]
+	return ok
+}
+
+func (db *BPMDatabase) ReadLocalDatabase() error {
+	dbFile := "/var/lib/bpm/databases/" + db.Name + ".bpmdb"
+	if _, err := os.Stat(dbFile); err != nil {
+		return nil
+	}
+
+	bytes, err := os.ReadFile(dbFile)
+	if err != nil {
+		return err
+	}
+
+	data := string(bytes)
+	for _, b := range strings.Split(data, "---") {
+		entry := BPMDatabaseEntry{
+			Info: &PackageInfo{
+				Name:            "",
+				Description:     "",
+				Version:         "",
+				Revision:        1,
+				Url:             "",
+				License:         "",
+				Arch:            "",
+				Type:            "",
+				Keep:            make([]string, 0),
+				Depends:         make([]string, 0),
+				MakeDepends:     make([]string, 0),
+				OptionalDepends: make([]string, 0),
+				Conflicts:       make([]string, 0),
+				Provides:        make([]string, 0),
+			},
+			Download:      "",
+			DownloadSize:  0,
+			InstalledSize: 0,
+			Database:      db,
+		}
+		err := yaml.Unmarshal([]byte(b), &entry)
+		if err != nil {
+			return err
+		}
+
+		// Create database entries
+		if entry.Info.IsSplitPackage() {
+			for _, splitPkg := range entry.Info.SplitPackages {
+				// Turn split package into json data
+				splitPkgJson, err := yaml.Marshal(splitPkg)
+				if err != nil {
+					return err
+				}
+
+				// Clone all main package fields onto split package
+				splitPkgClone := *entry.Info
+
+				// Set split package field of split package to nil
+				splitPkgClone.SplitPackages = nil
+
+				// Unmarshal json data back to struct
+				err = yaml.Unmarshal(splitPkgJson, &splitPkgClone)
+				if err != nil {
+					return err
+				}
+
+				// Force set split package version, revision and URL
+				splitPkgClone.Version = entry.Info.Version
+				splitPkgClone.Revision = entry.Info.Revision
+				splitPkgClone.Url = entry.Info.Url
+
+				// Create entry for split package
+				db.Entries[splitPkg.Name] = &BPMDatabaseEntry{
+					Info:          &splitPkgClone,
+					Download:      entry.Download,
+					DownloadSize:  entry.DownloadSize,
+					InstalledSize: 0,
+					Database:      db,
+				}
+
+				// Add virtual packages to database
+				for _, p := range splitPkg.Provides {
+					db.VirtualPackages[p] = append(db.VirtualPackages[p], splitPkg.Name)
+				}
+			}
+		} else {
+			// Create entry for package
+			db.Entries[entry.Info.Name] = &entry
+
+			// Add virtual packages to database
+			for _, p := range entry.Info.Provides {
+				db.VirtualPackages[p] = append(db.VirtualPackages[p], entry.Info.Name)
+			}
+		}
+
+	}
+
+	return nil
+}
+
+func (db *BPMDatabase) SyncLocalDatabaseFile() error {
+	dbFile := "/var/lib/bpm/databases/" + db.Name + ".bpmdb"
+
+	// Get URL to database
+	u, err := url.JoinPath(db.Source, "database.bpmdb")
+	if err != nil {
+		return err
+	}
+
+	// Retrieve data from URL
+	resp, err := http.Get(u)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	// Load data into byte buffer
+	buffer, err := io.ReadAll(resp.Body)
+
+	// Unmarshal data to ensure it is a valid BPM database
+	err = yaml.Unmarshal(buffer, &BPMDatabase{})
+	if err != nil {
+		return fmt.Errorf("could not decode database: %s", err)
+	}
+
+	// Create parent directories to database file
+	err = os.MkdirAll(path.Dir(dbFile), 0755)
+	if err != nil {
+		return err
+	}
+
+	// Create file and save database data
+	out, err := os.Create(dbFile)
+	if err != nil {
+		return err
+	}
+	defer out.Close()
+
+	_, err = out.Write(buffer)
+
+	return nil
+}
+
+func ReadLocalDatabaseFiles() (err error) {
+	for _, db := range MainBPMConfig.Databases {
+		// Initialize struct values
+		db.Entries = make(map[string]*BPMDatabaseEntry)
+		db.VirtualPackages = make(map[string][]string)
+
+		// Read database
+		err = db.ReadLocalDatabase()
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func GetDatabase(name string) *BPMDatabase {
+	for _, db := range MainBPMConfig.Databases {
+		if db.Name == name {
+			return db
+		}
+	}
+	return nil
+}
+
+func GetDatabaseEntry(str string) (*BPMDatabaseEntry, *BPMDatabase, error) {
+	split := strings.Split(str, "/")
+	if len(split) == 1 {
+		pkgName := strings.TrimSpace(split[0])
+		if pkgName == "" {
+			return nil, nil, errors.New("could not find database entry for this package")
+		}
+		for _, db := range MainBPMConfig.Databases {
+			if db.ContainsPackage(pkgName) {
+				return db.Entries[pkgName], db, nil
+			}
+		}
+		return nil, nil, errors.New("could not find database entry for this package")
+	} else if len(split) == 2 {
+		dbName := strings.TrimSpace(split[0])
+		pkgName := strings.TrimSpace(split[1])
+		if dbName == "" || pkgName == "" {
+			return nil, nil, errors.New("could not find database entry for this package")
+		}
+		db := GetDatabase(dbName)
+		if db == nil || !db.ContainsPackage(pkgName) {
+			return nil, nil, errors.New("could not find database entry for this package")
+		}
+		return db.Entries[pkgName], db, nil
+	} else {
+		return nil, nil, errors.New("could not find database entry for this package")
+	}
+}
+
+func FindReplacement(pkg string) *BPMDatabaseEntry {
+	for _, db := range MainBPMConfig.Databases {
+		for _, entry := range db.Entries {
+			for _, replaced := range entry.Info.Replaces {
+				if replaced == pkg {
+					return entry
+				}
+			}
+		}
+	}
+
+	return nil
+}
+
+func ResolveVirtualPackage(vpkg string) *BPMDatabaseEntry {
+	for _, db := range MainBPMConfig.Databases {
+		if v, ok := db.VirtualPackages[vpkg]; ok {
+			for _, pkg := range v {
+				return db.Entries[pkg]
+			}
+		}
+	}
+
+	return nil
+}
+
+func (db *BPMDatabase) FetchPackage(pkg string) (string, error) {
+	if !db.ContainsPackage(pkg) {
+		return "", errors.New("could not fetch package '" + pkg + "'")
+	}
+	entry := db.Entries[pkg]
+	URL, err := url.JoinPath(db.Source, entry.Download)
+	if err != nil {
+		return "", err
+	}
+	resp, err := http.Get(URL)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	err = os.MkdirAll("/var/cache/bpm/fetched/", 0755)
+	if err != nil {
+		return "", err
+	}
+	out, err := os.Create("/var/cache/bpm/fetched/" + path.Base(entry.Download))
+	if err != nil {
+		return "", err
+	}
+	defer out.Close()
+
+	_, err = io.Copy(out, resp.Body)
+	return "/var/cache/bpm/fetched/" + path.Base(entry.Download), nil
+}

src/bpmlib/dependencies.go

@@ -0,0 +1,225 @@
+package bpmlib
+
+import (
+	"errors"
+	"fmt"
+	"slices"
+)
+
+type pkgInstallationReason struct {
+	PkgName            string
+	InstallationReason InstallationReason
+}
+
+func (pkgInfo *PackageInfo) GetDependencies(includeMakeDepends, includeOptionalDepends bool) []pkgInstallationReason {
+	allDepends := make([]pkgInstallationReason, 0)
+
+	for _, depend := range pkgInfo.Depends {
+		if !slices.ContainsFunc(allDepends, func(p pkgInstallationReason) bool {
+			return p.PkgName == depend
+		}) {
+			allDepends = append(allDepends, pkgInstallationReason{
+				PkgName:            depend,
+				InstallationReason: InstallationReasonDependency,
+			})
+		}
+	}
+	if includeOptionalDepends {
+		for _, depend := range pkgInfo.OptionalDepends {
+			if !slices.ContainsFunc(allDepends, func(p pkgInstallationReason) bool {
+				return p.PkgName == depend
+			}) {
+				allDepends = append(allDepends, pkgInstallationReason{
+					PkgName:            depend,
+					InstallationReason: InstallationReasonDependency,
+				})
+			}
+		}
+	}
+	if includeMakeDepends {
+		for _, depend := range pkgInfo.MakeDepends {
+			if !slices.ContainsFunc(allDepends, func(p pkgInstallationReason) bool {
+				return p.PkgName == depend
+			}) {
+				allDepends = append(allDepends, pkgInstallationReason{
+					PkgName:            depend,
+					InstallationReason: InstallationReasonMakeDependency,
+				})
+			}
+		}
+	}
+	return allDepends
+}
+
+func (pkgInfo *PackageInfo) GetAllDependencies(includeMakeDepends, includeOptionalDepends bool, rootDir string) (resolved []string) {
+	// Initialize slices
+	resolved = make([]string, 0)
+	unresolved := make([]string, 0)
+
+	// Call unexported function
+	pkgInfo.getAllDependencies(&resolved, &unresolved, includeMakeDepends, includeOptionalDepends, rootDir)
+
+	return resolved
+}
+
+func (pkgInfo *PackageInfo) getAllDependencies(resolved *[]string, unresolved *[]string, includeMakeDepends, includeOptionalDepends bool, rootDir string) {
+	// Add current package name to unresolved slice
+	*unresolved = append(*unresolved, pkgInfo.Name)
+
+	// Loop through all dependencies
+	for _, pkgIR := range pkgInfo.GetDependencies(includeMakeDepends, includeOptionalDepends) {
+		depend := pkgIR.PkgName
+
+		if isVirtual, p := IsVirtualPackage(depend, rootDir); isVirtual {
+			depend = p
+		}
+
+		if !slices.Contains(*resolved, depend) {
+			// Add current dependency to resolved slice when circular dependency is detected
+			if slices.Contains(*unresolved, depend) {
+				if !slices.Contains(*resolved, depend) {
+					*resolved = append(*resolved, depend)
+				}
+				continue
+			}
+
+			dependInfo := GetPackageInfo(depend, rootDir)
+
+			if dependInfo != nil {
+				dependInfo.getAllDependencies(resolved, unresolved, includeMakeDepends, includeOptionalDepends, rootDir)
+			}
+		}
+	}
+	if !slices.Contains(*resolved, pkgInfo.Name) {
+		*resolved = append(*resolved, pkgInfo.Name)
+	}
+	*unresolved = stringSliceRemove(*unresolved, pkgInfo.Name)
+}
+
+func ResolveAllPackageDependenciesFromDatabases(pkgInfo *PackageInfo, checkMake, checkOptional, ignoreInstalled, verbose bool, rootDir string) (resolved []pkgInstallationReason, unresolved []string) {
+	// Initialize slices
+	resolved = make([]pkgInstallationReason, 0)
+	unresolved = make([]string, 0)
+
+	// Call unexported function
+	resolvePackageDependenciesFromDatabase(&resolved, &unresolved, pkgInfo, checkMake, checkOptional, ignoreInstalled, verbose, rootDir)
+
+	// Remove main package from unresolved slice
+	unresolved = stringSliceRemove(unresolved, pkgInfo.Name)
+
+	return resolved, unresolved
+}
+
+func resolvePackageDependenciesFromDatabase(resolved *[]pkgInstallationReason, unresolved *[]string, pkgInfo *PackageInfo, checkMake, checkOptional, ignoreInstalled, verbose bool, rootDir string) {
+	// Add current package name to unresolved slice
+	*unresolved = append(*unresolved, pkgInfo.Name)
+
+	// Loop through all dependencies
+	for _, pkgIR := range pkgInfo.GetDependencies(pkgInfo.Type == "source", checkOptional) {
+		// Skip dependency if it has already been resolved
+		if slices.ContainsFunc(*resolved, func(p pkgInstallationReason) bool {
+			return p.PkgName == pkgIR.PkgName
+		}) {
+			continue
+		}
+
+		// Add current dependency to resolved slice when circular dependency is detected
+		if slices.Contains(*unresolved, pkgIR.PkgName) {
+			if verbose {
+				fmt.Printf("Circular dependency was detected (%s -> %s). Installing %s first\n", pkgInfo.Name, pkgIR.PkgName, pkgIR.PkgName)
+			}
+
+			*resolved = append(*resolved, pkgInstallationReason{
+				PkgName:            pkgIR.PkgName,
+				InstallationReason: pkgIR.InstallationReason,
+			})
+			continue
+		}
+
+		// Skip dependency if it is already installed or provided
+		if ignoreInstalled && IsPackageProvided(pkgIR.PkgName, rootDir) {
+			continue
+		}
+
+		// Get database entry for dependency
+		var err error
+		var entry *BPMDatabaseEntry
+		entry, _, err = GetDatabaseEntry(pkgIR.PkgName)
+		if err != nil {
+			if entry = ResolveVirtualPackage(pkgIR.PkgName); entry == nil {
+				if !slices.Contains(*unresolved, pkgIR.PkgName) {
+					*unresolved = append(*unresolved, pkgIR.PkgName)
+				}
+				continue
+			}
+		}
+
+		// Resolve the dependencies of this dependency
+		resolvePackageDependenciesFromDatabase(resolved, unresolved, entry.Info, checkMake, checkOptional, ignoreInstalled, verbose, rootDir)
+
+		// Move dependency from the unresolved slice to the resolved slice
+		if !slices.ContainsFunc(*resolved, func(p pkgInstallationReason) bool {
+			return p.PkgName == entry.Info.Name
+		}) {
+			*resolved = append(*resolved, pkgInstallationReason{
+				PkgName:            entry.Info.Name,
+				InstallationReason: pkgIR.InstallationReason,
+			})
+		}
+		*unresolved = stringSliceRemove(*unresolved, entry.Info.Name)
+	}
+}
+
+func GetPackageDependants(pkgName string, rootDir string) ([]string, error) {
+	ret := make([]string, 0)
+
+	// Get BPM package
+	pkg := GetPackage(pkgName, rootDir)
+	if pkg == nil {
+		return nil, errors.New("package not found: " + pkgName)
+	}
+
+	// Get installed package names
+	pkgs, err := GetInstalledPackages(rootDir)
+	if err != nil {
+		return nil, errors.New("could not get installed packages")
+	}
+
+	// Loop through all installed packages
+	for _, installedPkgName := range pkgs {
+		// Get installed BPM package
+		installedPkg := GetPackage(installedPkgName, rootDir)
+		if installedPkg == nil {
+			return nil, errors.New("package not found: " + installedPkgName)
+		}
+
+		// Skip iteration if comparing the same packages
+		if installedPkg.PkgInfo.Name == pkgName {
+			continue
+		}
+
+		// Get installed package dependencies
+		dependencies := installedPkg.PkgInfo.GetDependencies(false, true)
+
+		// Add installed package to list if its dependencies include pkgName
+		if slices.ContainsFunc(dependencies, func(p pkgInstallationReason) bool {
+			return p.PkgName == pkgName
+		}) {
+			ret = append(ret, installedPkgName)
+			continue
+		}
+
+		// Loop through each virtual package
+		for _, vpkg := range pkg.PkgInfo.Provides {
+			// Add installed package to list if its dependencies contain a provided virtual package
+			if slices.ContainsFunc(dependencies, func(p pkgInstallationReason) bool {
+				return p.PkgName == vpkg
+			}) {
+				ret = append(ret, installedPkgName)
+				break
+			}
+		}
+	}
+
+	return ret, nil
+}

src/bpmlib/errors.go

@@ -0,0 +1,42 @@
+package bpmlib
+
+import (
+	"fmt"
+	"strings"
+)
+
+type PackageNotFoundErr struct {
+	packages []string
+}
+
+func (e PackageNotFoundErr) Error() string {
+	return "The following packages were not found in any databases: " + strings.Join(e.packages, ", ")
+}
+
+type DependencyNotFoundErr struct {
+	dependencies []string
+}
+
+func (e DependencyNotFoundErr) Error() string {
+	return "The following dependencies were not found in any databases: " + strings.Join(e.dependencies, ", ")
+}
+
+type PackageConflictErr struct {
+	pkg       string
+	conflicts []string
+}
+
+func (e PackageConflictErr) Error() string {
+	return fmt.Sprintf("Package (%s) is in conflict with the following packages: %s", e.pkg, strings.Join(e.conflicts, ", "))
+
+}
+
+type PackageScriptErr struct {
+	err           error
+	packageName   string
+	packageScript string
+}
+
+func (e PackageScriptErr) Error() string {
+	return fmt.Sprintf("could not execute package script (%s) for package (%s): %s", e.packageScript, e.packageName, e.err)
+}

src/bpmlib/general.go

@@ -0,0 +1,422 @@
+package bpmlib
+
+import (
+	"errors"
+	"fmt"
+	"log"
+	"os"
+	"path"
+	"slices"
+	"strings"
+)
+
+type ReinstallMethod uint8
+
+const (
+	ReinstallMethodNone      ReinstallMethod = iota
+	ReinstallMethodSpecified ReinstallMethod = iota
+	ReinstallMethodAll       ReinstallMethod = iota
+)
+
+// InstallPackages installs the specified packages into the given root directory by fetching them from databases or directly from local bpm archives
+func InstallPackages(rootDir string, forceInstallationReason InstallationReason, reinstallMethod ReinstallMethod, installOptionalDependencies, forceInstallation, verbose bool, packages ...string) (operation *BPMOperation, err error) {
+
+	// Setup operation struct
+	operation = &BPMOperation{
+		Actions:           make([]OperationAction, 0),
+		UnresolvedDepends: make([]string, 0),
+		Changes:           make(map[string]string),
+		RootDir:           rootDir,
+		compiledPackages:  make(map[string]string),
+	}
+
+	// Resolve packages
+	pkgsNotFound := make([]string, 0)
+	for _, pkg := range packages {
+		if stat, err := os.Stat(pkg); err == nil && !stat.IsDir() {
+			bpmpkg, err := ReadPackage(pkg)
+			if err != nil {
+				return nil, fmt.Errorf("could not read package: %s", err)
+			}
+
+			if bpmpkg.PkgInfo.Type == "source" && bpmpkg.PkgInfo.IsSplitPackage() {
+				for _, splitPkg := range bpmpkg.PkgInfo.SplitPackages {
+					if reinstallMethod == ReinstallMethodNone && IsPackageInstalled(splitPkg.Name, rootDir) && GetPackageInfo(splitPkg.Name, rootDir).GetFullVersion() == splitPkg.GetFullVersion() {
+						continue
+					}
+
+					// Set package installation reason
+					installationReason := forceInstallationReason
+					if installationReason == InstallationReasonUnknown {
+						if IsPackageInstalled(splitPkg.Name, rootDir) {
+							installationReason = GetInstallationReason(splitPkg.Name, rootDir)
+						} else {
+							installationReason = InstallationReasonManual
+						}
+					}
+
+					operation.AppendAction(&InstallPackageAction{
+						File:                  pkg,
+						InstallationReason:    installationReason,
+						BpmPackage:            bpmpkg,
+						SplitPackageToInstall: splitPkg.Name,
+					})
+				}
+				continue
+			}
+
+			if reinstallMethod == ReinstallMethodNone && IsPackageInstalled(bpmpkg.PkgInfo.Name, rootDir) && GetPackageInfo(bpmpkg.PkgInfo.Name, rootDir).GetFullVersion() == bpmpkg.PkgInfo.GetFullVersion() {
+				continue
+			}
+
+			// Set package installation reason
+			installationReason := forceInstallationReason
+			if installationReason == InstallationReasonUnknown {
+				if IsPackageInstalled(bpmpkg.PkgInfo.Name, rootDir) {
+					installationReason = GetInstallationReason(bpmpkg.PkgInfo.Name, rootDir)
+				} else {
+					installationReason = InstallationReasonManual
+				}
+			}
+
+			operation.AppendAction(&InstallPackageAction{
+				File:               pkg,
+				InstallationReason: installationReason,
+				BpmPackage:         bpmpkg,
+			})
+		} else {
+			var entry *BPMDatabaseEntry
+
+			if e, _, err := GetDatabaseEntry(pkg); err == nil {
+				entry = e
+			} else if isVirtual, p := IsVirtualPackage(pkg, rootDir); isVirtual {
+				entry, _, err = GetDatabaseEntry(p)
+				if err != nil {
+					pkgsNotFound = append(pkgsNotFound, pkg)
+					continue
+				}
+			} else if e := ResolveVirtualPackage(pkg); e != nil {
+				entry = e
+			} else {
+				pkgsNotFound = append(pkgsNotFound, pkg)
+				continue
+			}
+			if reinstallMethod == ReinstallMethodNone && IsPackageInstalled(entry.Info.Name, rootDir) && GetPackageInfo(entry.Info.Name, rootDir).GetFullVersion() == entry.Info.GetFullVersion() {
+				continue
+			}
+
+			// Set package installation reason
+			installationReason := forceInstallationReason
+			if installationReason == InstallationReasonUnknown {
+				if IsPackageInstalled(entry.Info.Name, rootDir) {
+					installationReason = GetInstallationReason(entry.Info.Name, rootDir)
+				} else {
+					installationReason = InstallationReasonManual
+				}
+			}
+
+			operation.AppendAction(&FetchPackageAction{
+				InstallationReason: installationReason,
+				DatabaseEntry:      entry,
+			})
+		}
+	}
+
+	// Return error if not all packages are found
+	if len(pkgsNotFound) != 0 {
+		return nil, PackageNotFoundErr{pkgsNotFound}
+	}
+
+	// Resolve dependencies
+	err = operation.ResolveDependencies(reinstallMethod == ReinstallMethodAll, installOptionalDependencies, verbose)
+	if err != nil {
+		return nil, fmt.Errorf("could not resolve dependencies: %s", err)
+	}
+	if len(operation.UnresolvedDepends) != 0 {
+		if !forceInstallation {
+			return nil, DependencyNotFoundErr{operation.UnresolvedDepends}
+		} else if verbose {
+			log.Printf("Warning: %s", DependencyNotFoundErr{operation.UnresolvedDepends})
+		}
+	}
+
+	// Replace obsolete packages
+	operation.ReplaceObsoletePackages()
+
+	// Check for conflicts
+	conflicts, err := operation.CheckForConflicts()
+	if err != nil {
+		return nil, fmt.Errorf("could not complete package conflict check: %s", err)
+	}
+	if len(conflicts) > 0 {
+		err = nil
+		for pkg, conflict := range conflicts {
+			err = errors.Join(err, PackageConflictErr{pkg, conflict})
+		}
+		if !forceInstallation {
+			return nil, err
+		} else {
+			log.Printf("Warning: %s", err)
+		}
+	}
+
+	// Check whether compiling source packages on different root directory
+	if rootDir != "/" {
+		sourcePackages := make([]string, 0)
+		for _, action := range operation.Actions {
+			switch action.(type) {
+			case *InstallPackageAction:
+				if action.(*InstallPackageAction).BpmPackage.PkgInfo.Type == "source" {
+					sourcePackages = append(sourcePackages, action.(*InstallPackageAction).BpmPackage.PkgInfo.Name)
+				}
+			case *FetchPackageAction:
+				if action.(*FetchPackageAction).DatabaseEntry.Info.Type == "source" {
+					sourcePackages = append(sourcePackages, action.(*FetchPackageAction).DatabaseEntry.Info.Name)
+				}
+			}
+		}
+
+		// Return error if source packages are present in the operation
+		if len(sourcePackages) != 0 {
+			return nil, fmt.Errorf("cannot compile source packages in different root directory: %s", strings.Join(sourcePackages, ", "))
+		}
+	}
+
+	return operation, nil
+}
+
+// RemovePackages removes the specified packages from the given root directory
+func RemovePackages(rootDir string, removeUnusedPackagesOnly, cleanupDependencies bool, packages ...string) (operation *BPMOperation, err error) {
+	operation = &BPMOperation{
+		Actions:           make([]OperationAction, 0),
+		UnresolvedDepends: make([]string, 0),
+		Changes:           make(map[string]string),
+		RootDir:           rootDir,
+		compiledPackages:  make(map[string]string),
+	}
+
+	// Search for packages
+	for _, pkg := range packages {
+		bpmpkg := GetPackage(pkg, rootDir)
+		if bpmpkg == nil {
+			continue
+		}
+		operation.AppendAction(&RemovePackageAction{BpmPackage: bpmpkg})
+	}
+
+	// Do not remove packages which other packages depend on
+	if removeUnusedPackagesOnly {
+		err := operation.RemoveNeededPackages()
+		if err != nil {
+			return nil, fmt.Errorf("could not skip needed packages: %s", err)
+		}
+	}
+
+	// Do package cleanup
+	if cleanupDependencies {
+		err := operation.Cleanup(true)
+		if err != nil {
+			return nil, fmt.Errorf("could not perform cleanup for operation: %s", err)
+		}
+	}
+	return operation, nil
+}
+
+// CleanupPackages finds packages installed as dependencies which are no longer required by the rest of the system in the given root directory
+func CleanupPackages(cleanupMakeDepends bool, rootDir string) (operation *BPMOperation, err error) {
+	operation = &BPMOperation{
+		Actions:           make([]OperationAction, 0),
+		UnresolvedDepends: make([]string, 0),
+		Changes:           make(map[string]string),
+		RootDir:           rootDir,
+		compiledPackages:  make(map[string]string),
+	}
+
+	// Do package cleanup
+	err = operation.Cleanup(cleanupMakeDepends)
+	if err != nil {
+		return nil, fmt.Errorf("could not perform cleanup for operation: %s", err)
+	}
+
+	return operation, nil
+}
+
+func CleanupCache(rootDir string, cleanupCompilationFiles, cleanupCompiledPackages, cleanupFetchedPackages, verbose bool) error {
+	if cleanupCompilationFiles {
+		globalCompilationCacheDir := path.Join(rootDir, "var/cache/bpm/compilation")
+
+		// Ensure path exists and is a directory
+		if stat, err := os.Stat(globalCompilationCacheDir); err == nil && stat.IsDir() {
+			// Delete directory
+			if verbose {
+				log.Printf("Removing directory (%s)\n", globalCompilationCacheDir)
+			}
+			err = os.RemoveAll(globalCompilationCacheDir)
+			if err != nil {
+				return err
+			}
+		}
+
+		// Get home directories of users in root directory
+		homeDirs, err := os.ReadDir(path.Join(rootDir, "home"))
+		if err != nil {
+			return err
+		}
+
+		// Loop through all home directories
+		for _, homeDir := range homeDirs {
+			// Skip if not a directory
+			if !homeDir.IsDir() {
+				continue
+			}
+
+			localCompilationDir := path.Join(rootDir, "home", homeDir.Name(), ".cache/bpm/compilation")
+
+			// Ensure path exists and is a directory
+			if stat, err := os.Stat(localCompilationDir); err != nil || !stat.IsDir() {
+				continue
+			}
+
+			// Delete directory
+			if verbose {
+				log.Printf("Removing directory (%s)\n", localCompilationDir)
+			}
+			err = os.RemoveAll(localCompilationDir)
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	if cleanupCompiledPackages {
+		dirToRemove := path.Join(rootDir, "var/cache/bpm/compiled")
+
+		// Ensure path exists and is a directory
+		if stat, err := os.Stat(dirToRemove); err == nil && stat.IsDir() {
+			// Delete directory
+			if verbose {
+				log.Printf("Removing directory (%s)\n", dirToRemove)
+			}
+			err = os.RemoveAll(dirToRemove)
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	if cleanupFetchedPackages {
+		dirToRemove := path.Join(rootDir, "var/cache/bpm/fetched")
+
+		// Ensure path exists and is a directory
+		if stat, err := os.Stat(dirToRemove); err == nil && stat.IsDir() {
+			// Delete directory
+			if verbose {
+				log.Printf("Removing directory (%s)\n", dirToRemove)
+			}
+			err = os.RemoveAll(dirToRemove)
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
+
+// UpdatePackages fetches the newest versions of all installed packages from
+func UpdatePackages(rootDir string, syncDatabase bool, installOptionalDependencies, forceInstallation, verbose bool) (operation *BPMOperation, err error) {
+	// Sync databases
+	if syncDatabase {
+		err := SyncDatabase(verbose)
+		if err != nil {
+			return nil, fmt.Errorf("could not sync local database: %s", err)
+		}
+		if verbose {
+			fmt.Println("All package databases synced successfully!")
+		}
+
+		// Reload config and local databases
+		err = ReadConfig()
+		if err != nil {
+			return nil, fmt.Errorf("could not read BPM config: %s", err)
+		}
+		err = ReadLocalDatabaseFiles()
+		if err != nil {
+			return nil, fmt.Errorf("could not read local databases: %s", err)
+		}
+	}
+
+	// Get installed packages and check for updates
+	pkgs, err := GetInstalledPackages(rootDir)
+	if err != nil {
+		return nil, fmt.Errorf("could not get installed packages: %s", err)
+	}
+
+	operation = &BPMOperation{
+		Actions:           make([]OperationAction, 0),
+		UnresolvedDepends: make([]string, 0),
+		Changes:           make(map[string]string),
+		RootDir:           rootDir,
+		compiledPackages:  make(map[string]string),
+	}
+
+	// Search for packages
+	for _, pkg := range pkgs {
+		if slices.Contains(MainBPMConfig.IgnorePackages, pkg) {
+			continue
+		}
+		var entry *BPMDatabaseEntry
+		// Check if installed package can be replaced and install that instead
+		if e := FindReplacement(pkg); e != nil {
+			entry = e
+		} else if entry, _, err = GetDatabaseEntry(pkg); err != nil {
+			continue
+		}
+
+		installedInfo := GetPackageInfo(pkg, rootDir)
+		if installedInfo == nil {
+			return nil, fmt.Errorf("could not get package info for package (%s)", pkg)
+		} else {
+			comparison := ComparePackageVersions(*entry.Info, *installedInfo)
+			if comparison > 0 {
+				operation.AppendAction(&FetchPackageAction{
+					InstallationReason: GetInstallationReason(pkg, rootDir),
+					DatabaseEntry:      entry,
+				})
+			}
+		}
+	}
+
+	// Check for new dependencies in updated packages
+	err = operation.ResolveDependencies(false, installOptionalDependencies, verbose)
+	if err != nil {
+		return nil, fmt.Errorf("could not resolve dependencies: %s", err)
+	}
+	if len(operation.UnresolvedDepends) != 0 {
+		if !forceInstallation {
+			return nil, DependencyNotFoundErr{operation.UnresolvedDepends}
+		} else if verbose {
+			log.Printf("Warning: %s", DependencyNotFoundErr{operation.UnresolvedDepends})
+		}
+	}
+
+	// Replace obsolete packages
+	operation.ReplaceObsoletePackages()
+	return operation, nil
+}
+
+// SyncDatabase syncs all databases declared in /etc/bpm.conf
+func SyncDatabase(verbose bool) (err error) {
+	for _, db := range MainBPMConfig.Databases {
+		if verbose {
+			fmt.Printf("Fetching package database file for database (%s)...\n", db.Name)
+		}
+
+		err := db.SyncLocalDatabaseFile()
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}

src/bpmlib/go.mod

@@ -0,0 +1,8 @@
+module git.enumerated.dev/bubble-package-manager/bpm/src/bpmlib
+
+go 1.23
+
+require (
+	github.com/knqyf263/go-rpm-version v0.0.0-20240918084003-2afd7dc6a38f
+	gopkg.in/yaml.v3 v3.0.1
+)

src/bpmlib/go.sum

@@ -0,0 +1,6 @@
+github.com/knqyf263/go-rpm-version v0.0.0-20240918084003-2afd7dc6a38f h1:xt29M2T6STgldg+WEP51gGePQCsQvklmP2eIhPIBK3g=
+github.com/knqyf263/go-rpm-version v0.0.0-20240918084003-2afd7dc6a38f/go.mod h1:i4sF0l1fFnY1aiw08QQSwVAFxHEm311Me3WsU/X7nL0=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

src/bpmlib/hooks.go

@@ -0,0 +1,158 @@
+package bpmlib
+
+import (
+	"errors"
+	"fmt"
+	"gopkg.in/yaml.v3"
+	"os"
+	"os/exec"
+	"path"
+	"path/filepath"
+	"slices"
+	"strings"
+	"syscall"
+)
+
+type BPMHook struct {
+	SourcePath        string
+	SourceContent     string
+	TriggerOperations []string `yaml:"trigger_operations"`
+	TargetType        string   `yaml:"target_type"`
+	Targets           []string `yaml:"targets"`
+	Depends           []string `yaml:"depends"`
+	Run               string   `yaml:"run"`
+}
+
+// createHook returns a BPMHook instance based on the content of the given string
+func createHook(sourcePath string) (*BPMHook, error) {
+	// Read hook from source path
+	bytes, err := os.ReadFile(sourcePath)
+	if err != nil {
+		return nil, err
+	}
+
+	// Create base hook structure
+	hook := &BPMHook{
+		SourcePath:        sourcePath,
+		SourceContent:     string(bytes),
+		TriggerOperations: nil,
+		TargetType:        "",
+		Targets:           nil,
+		Depends:           nil,
+		Run:               "",
+	}
+
+	// Unmarshal yaml string
+	err = yaml.Unmarshal(bytes, hook)
+	if err != nil {
+		return nil, err
+	}
+
+	// Ensure hook is valid
+	if err := hook.IsValid(); err != nil {
+		return nil, err
+	}
+
+	return hook, nil
+}
+
+// IsValid ensures hook is valid
+func (hook *BPMHook) IsValid() error {
+	ValidOperations := []string{"install", "upgrade", "remove"}
+
+	// Return error if any trigger operation is not valid or none are given
+	if len(hook.TriggerOperations) == 0 {
+		return errors.New("no trigger operations specified")
+	}
+	for _, operation := range hook.TriggerOperations {
+		if !slices.Contains(ValidOperations, operation) {
+			return errors.New("trigger operation '" + operation + "' is not valid")
+		}
+	}
+
+	if hook.TargetType != "package" && hook.TargetType != "path" {
+		return errors.New("target type '" + hook.TargetType + "' is not valid")
+	}
+
+	if len(hook.Run) == 0 {
+		return errors.New("command to run is empty")
+	}
+
+	// Return nil as hook is valid
+	return nil
+}
+
+// Execute hook if all conditions are met
+func (hook *BPMHook) Execute(packageChanges map[string]string, verbose bool, rootDir string) error {
+	// Check if package dependencies are met
+	installedPackages, err := GetInstalledPackages(rootDir)
+	if err != nil {
+		return err
+	}
+
+	for _, depend := range hook.Depends {
+		if !slices.Contains(installedPackages, depend) {
+			return nil
+		}
+	}
+
+	// Get modified files slice
+	modifiedFiles := make([]*PackageFileEntry, 0)
+	for pkg := range packageChanges {
+		if GetPackage(pkg, rootDir) != nil {
+			modifiedFiles = append(modifiedFiles, GetPackage(pkg, rootDir).PkgFiles...)
+		}
+
+	}
+
+	// Check if any targets are met
+	targetMet := false
+	for _, target := range hook.Targets {
+		if targetMet {
+			break
+		}
+		if hook.TargetType == "package" {
+			for change, operation := range packageChanges {
+				if target == change && slices.Contains(hook.TriggerOperations, operation) {
+					targetMet = true
+					break
+				}
+			}
+		} else {
+			glob, err := filepath.Glob(path.Join(rootDir, target))
+			if err != nil {
+				return err
+			}
+			for _, change := range modifiedFiles {
+				if slices.Contains(glob, path.Join(rootDir, change.Path)) {
+					targetMet = true
+					break
+				}
+			}
+		}
+	}
+	if !targetMet {
+		return nil
+	}
+
+	// Execute the command
+	splitCommand := strings.Split(hook.Run, " ")
+	cmd := exec.Command(splitCommand[0], splitCommand[1:]...)
+	// Setup subprocess environment
+	cmd.Dir = "/"
+	// Run hook in chroot if using the -R flag
+	if rootDir != "/" {
+		cmd.SysProcAttr = &syscall.SysProcAttr{Chroot: rootDir}
+	}
+
+	if verbose {
+		fmt.Printf("Running hook (%s) with run command: %s\n", hook.SourcePath, strings.Join(splitCommand, " "))
+	}
+
+	err = cmd.Run()
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

src/bpmlib/installed_packages.go

@@ -0,0 +1,243 @@
+package bpmlib
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"path"
+	"slices"
+	"strconv"
+	"strings"
+)
+
+var localPackageInformation map[string]map[string]*BPMPackage = make(map[string]map[string]*BPMPackage)
+
+func initializeLocalPackageInformation(rootDir string) (err error) {
+	// Return if information is already initialized
+	if _, ok := localPackageInformation[rootDir]; ok {
+		return nil
+	}
+
+	tempPackageInformation := make(map[string]*BPMPackage)
+
+	// Get path to installed package information directory
+	installedDir := path.Join(rootDir, "var/lib/bpm/installed/")
+
+	// Get directory content
+	items, err := os.ReadDir(installedDir)
+	if os.IsNotExist(err) {
+		localPackageInformation[rootDir] = make(map[string]*BPMPackage)
+		return nil
+	}
+	if err != nil {
+		return err
+	}
+
+	// Loop through each subdirectory
+	for _, item := range items {
+		// Skip if not a directory
+		if !item.IsDir() {
+			continue
+		}
+
+		// Read package info
+		infoData, err := os.ReadFile(path.Join(installedDir, item.Name(), "info"))
+		if err != nil {
+			return err
+		}
+		info, err := ReadPackageInfo(string(infoData))
+		if err != nil {
+			return err
+		}
+
+		// Read package files
+		files := getPackageFiles(info.Name, rootDir)
+
+		// Add package to slice
+		tempPackageInformation[info.Name] = &BPMPackage{
+			PkgInfo:  info,
+			PkgFiles: files,
+		}
+	}
+
+	localPackageInformation[rootDir] = tempPackageInformation
+	return nil
+}
+
+func GetInstalledPackages(rootDir string) (ret []string, err error) {
+	// Initialize local package information
+	err = initializeLocalPackageInformation(rootDir)
+	if err != nil {
+		return nil, err
+	}
+
+	// Loop through each package and add it to slice
+	for _, bpmpkg := range localPackageInformation[rootDir] {
+		ret = append(ret, bpmpkg.PkgInfo.Name)
+	}
+
+	return ret, nil
+}
+
+func IsPackageInstalled(pkg, rootDir string) bool {
+	// Initialize local package information
+	err := initializeLocalPackageInformation(rootDir)
+	if err != nil {
+		return false
+	}
+
+	if _, ok := localPackageInformation[rootDir][pkg]; !ok {
+		return false
+	}
+	return true
+}
+
+func GetPackageInfo(pkg string, rootDir string) *PackageInfo {
+	// Get BPM package
+	bpmpkg := GetPackage(pkg, rootDir)
+
+	// Return nil if not found
+	if bpmpkg == nil {
+		return nil
+	}
+
+	return bpmpkg.PkgInfo
+}
+
+func IsVirtualPackage(pkg, rootDir string) (bool, string) {
+	pkgs, err := GetInstalledPackages(rootDir)
+	if err != nil {
+		return false, ""
+	}
+	for _, p := range pkgs {
+		if p == pkg {
+			return false, ""
+		}
+		i := GetPackageInfo(p, rootDir)
+		if i == nil {
+			continue
+		}
+		if slices.Contains(i.Provides, pkg) {
+			return true, p
+		}
+	}
+	return false, ""
+}
+
+func IsPackageProvided(pkg, rootDir string) bool {
+	pkgs, err := GetInstalledPackages(rootDir)
+	if err != nil {
+		return false
+	}
+	for _, p := range pkgs {
+		if p == pkg {
+			return true
+		}
+		i := GetPackageInfo(p, rootDir)
+		if i == nil {
+			continue
+		}
+		if slices.Contains(i.Provides, pkg) {
+			return true
+		}
+	}
+	return false
+}
+
+func GetPackage(pkg, rootDir string) *BPMPackage {
+	err := initializeLocalPackageInformation(rootDir)
+	if err != nil {
+		return nil
+	}
+
+	bpmpkg := localPackageInformation[rootDir][pkg]
+
+	return bpmpkg
+}
+
+func GetAllPackageFiles(rootDir string, excludePackages ...string) (map[string][]*BPMPackage, error) {
+	ret := make(map[string][]*BPMPackage)
+
+	pkgNames, err := GetInstalledPackages(rootDir)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, pkgName := range pkgNames {
+		if slices.Contains(excludePackages, pkgName) {
+			continue
+		}
+		bpmpkg := GetPackage(pkgName, rootDir)
+		if bpmpkg == nil {
+			return nil, errors.New(fmt.Sprintf("could not get BPM package (%s)", pkgName))
+		}
+		for _, entry := range bpmpkg.PkgFiles {
+			if _, ok := ret[entry.Path]; ok {
+				ret[entry.Path] = append(ret[entry.Path], bpmpkg)
+			} else {
+				ret[entry.Path] = []*BPMPackage{bpmpkg}
+			}
+		}
+	}
+
+	return ret, nil
+}
+
+func getPackageFiles(pkg, rootDir string) []*PackageFileEntry {
+	var pkgFiles []*PackageFileEntry
+	installedDir := path.Join(rootDir, "var/lib/bpm/installed/")
+	pkgDir := path.Join(installedDir, pkg)
+	files := path.Join(pkgDir, "files")
+	if _, err := os.Stat(installedDir); os.IsNotExist(err) {
+		return nil
+	}
+	if _, err := os.Stat(pkgDir); os.IsNotExist(err) {
+		return nil
+	}
+	bs, err := os.ReadFile(files)
+	if err != nil {
+		return nil
+	}
+
+	for _, line := range strings.Split(string(bs), "\n") {
+		if strings.TrimSpace(line) == "" {
+			continue
+		}
+		stringEntry := strings.Split(strings.TrimSpace(line), " ")
+		if len(stringEntry) < 5 {
+			pkgFiles = append(pkgFiles, &PackageFileEntry{
+				Path:        strings.TrimSuffix(line, "/"),
+				OctalPerms:  0,
+				UserID:      0,
+				GroupID:     0,
+				SizeInBytes: 0,
+			})
+			continue
+		}
+		uid, err := strconv.ParseInt(stringEntry[len(stringEntry)-4], 0, 32)
+		if err != nil {
+			return nil
+		}
+		octalPerms, err := strconv.ParseInt(stringEntry[len(stringEntry)-3], 0, 32)
+		if err != nil {
+			return nil
+		}
+		gid, err := strconv.ParseInt(stringEntry[len(stringEntry)-2], 0, 32)
+		if err != nil {
+			return nil
+		}
+		size, err := strconv.ParseUint(stringEntry[len(stringEntry)-1], 0, 64)
+		if err != nil {
+			return nil
+		}
+		pkgFiles = append(pkgFiles, &PackageFileEntry{
+			Path:        strings.TrimSuffix(strings.Join(stringEntry[:len(stringEntry)-4], " "), "/"),
+			OctalPerms:  uint32(octalPerms),
+			UserID:      int(uid),
+			GroupID:     int(gid),
+			SizeInBytes: size,
+		})
+	}
+
+	return pkgFiles
+}

src/bpmlib/operations.go

@@ -0,0 +1,621 @@
+package bpmlib
+
+import (
+	"errors"
+	"fmt"
+	"log"
+	"os"
+	"path"
+	"slices"
+	"strings"
+)
+
+type BPMOperation struct {
+	Actions           []OperationAction
+	UnresolvedDepends []string
+	Changes           map[string]string
+	RootDir           string
+	compiledPackages  map[string]string
+}
+
+func (operation *BPMOperation) ActionsContainPackage(pkg string) bool {
+	for _, action := range operation.Actions {
+		if action.GetActionType() == "install" {
+			if action.(*InstallPackageAction).BpmPackage.PkgInfo.Name == pkg {
+				return true
+			}
+		} else if action.GetActionType() == "fetch" {
+			if action.(*FetchPackageAction).DatabaseEntry.Info.Name == pkg {
+				return true
+			}
+		} else if action.GetActionType() == "remove" {
+			if action.(*RemovePackageAction).BpmPackage.PkgInfo.Name == pkg {
+				return true
+			}
+		}
+	}
+	return false
+}
+
+func (operation *BPMOperation) AppendAction(action OperationAction) {
+	operation.InsertActionAt(len(operation.Actions), action)
+}
+
+func (operation *BPMOperation) InsertActionAt(index int, action OperationAction) {
+	if len(operation.Actions) == index { // nil or empty slice or after last element
+		operation.Actions = append(operation.Actions, action)
+	} else {
+		operation.Actions = append(operation.Actions[:index+1], operation.Actions[index:]...) // index < len(a)
+		operation.Actions[index] = action
+	}
+
+	if action.GetActionType() == "install" {
+		pkgInfo := action.(*InstallPackageAction).BpmPackage.PkgInfo
+		if !IsPackageInstalled(pkgInfo.Name, operation.RootDir) {
+			operation.Changes[pkgInfo.Name] = "install"
+		} else {
+			operation.Changes[pkgInfo.Name] = "upgrade"
+		}
+	} else if action.GetActionType() == "fetch" {
+		pkgInfo := action.(*FetchPackageAction).DatabaseEntry.Info
+		if !IsPackageInstalled(pkgInfo.Name, operation.RootDir) {
+			operation.Changes[pkgInfo.Name] = "install"
+		} else {
+			operation.Changes[pkgInfo.Name] = "upgrade"
+		}
+	} else if action.GetActionType() == "remove" {
+		operation.Changes[action.(*RemovePackageAction).BpmPackage.PkgInfo.Name] = "remove"
+	}
+}
+
+func (operation *BPMOperation) RemoveAction(pkg, actionType string) {
+	operation.Actions = slices.DeleteFunc(operation.Actions, func(a OperationAction) bool {
+		if a.GetActionType() != actionType {
+			return false
+		}
+		if a.GetActionType() == "install" {
+			return a.(*InstallPackageAction).BpmPackage.PkgInfo.Name == pkg
+		} else if a.GetActionType() == "fetch" {
+			return a.(*FetchPackageAction).DatabaseEntry.Info.Name == pkg
+		} else if a.GetActionType() == "remove" {
+			return a.(*RemovePackageAction).BpmPackage.PkgInfo.Name == pkg
+		}
+		return false
+	})
+}
+
+func (operation *BPMOperation) GetTotalDownloadSize() uint64 {
+	var ret uint64 = 0
+	for _, action := range operation.Actions {
+		if action.GetActionType() == "fetch" {
+			ret += action.(*FetchPackageAction).DatabaseEntry.DownloadSize
+		}
+	}
+	return ret
+}
+
+func (operation *BPMOperation) GetTotalInstalledSize() uint64 {
+	var ret uint64 = 0
+	for _, action := range operation.Actions {
+		if action.GetActionType() == "install" {
+			ret += action.(*InstallPackageAction).BpmPackage.GetInstalledSize()
+		} else if action.GetActionType() == "fetch" {
+			ret += action.(*FetchPackageAction).DatabaseEntry.InstalledSize
+		}
+	}
+	return ret
+}
+
+func (operation *BPMOperation) GetFinalActionSize(rootDir string) int64 {
+	var ret int64 = 0
+	for _, action := range operation.Actions {
+		if action.GetActionType() == "install" {
+			ret += int64(action.(*InstallPackageAction).BpmPackage.GetInstalledSize())
+			if IsPackageInstalled(action.(*InstallPackageAction).BpmPackage.PkgInfo.Name, rootDir) {
+				ret -= int64(GetPackage(action.(*InstallPackageAction).BpmPackage.PkgInfo.Name, rootDir).GetInstalledSize())
+			}
+		} else if action.GetActionType() == "fetch" {
+			ret += int64(action.(*FetchPackageAction).DatabaseEntry.InstalledSize)
+		} else if action.GetActionType() == "remove" {
+			ret -= int64(action.(*RemovePackageAction).BpmPackage.GetInstalledSize())
+		}
+	}
+	return ret
+}
+
+func (operation *BPMOperation) ResolveDependencies(reinstallDependencies, installOptionalDependencies, verbose bool) error {
+	pos := 0
+	for _, value := range slices.Clone(operation.Actions) {
+		var pkgInfo *PackageInfo
+		if value.GetActionType() == "install" {
+			action := value.(*InstallPackageAction)
+			pkgInfo = action.BpmPackage.PkgInfo
+		} else if value.GetActionType() == "fetch" {
+			action := value.(*FetchPackageAction)
+			pkgInfo = action.DatabaseEntry.Info
+		} else {
+			pos++
+			continue
+		}
+
+		resolved, unresolved := ResolveAllPackageDependenciesFromDatabases(pkgInfo, pkgInfo.Type == "source", installOptionalDependencies, !reinstallDependencies, verbose, operation.RootDir)
+
+		operation.UnresolvedDepends = append(operation.UnresolvedDepends, unresolved...)
+
+		for _, resolvedPkg := range resolved {
+			if !operation.ActionsContainPackage(resolvedPkg.PkgName) && resolvedPkg.PkgName != pkgInfo.Name {
+				if !reinstallDependencies && IsPackageInstalled(resolvedPkg.PkgName, operation.RootDir) {
+					continue
+				}
+				entry, _, err := GetDatabaseEntry(resolvedPkg.PkgName)
+				if err != nil {
+					return errors.New("could not get database entry for package (" + resolvedPkg.PkgName + ")")
+				}
+				operation.InsertActionAt(pos, &FetchPackageAction{
+					InstallationReason: resolvedPkg.InstallationReason,
+					DatabaseEntry:      entry,
+				})
+				pos++
+			}
+		}
+		pos++
+	}
+
+	return nil
+}
+
+func (operation *BPMOperation) RemoveNeededPackages() error {
+	removeActions := make(map[string]*RemovePackageAction)
+	for _, action := range slices.Clone(operation.Actions) {
+		if action.GetActionType() == "remove" {
+			removeActions[action.(*RemovePackageAction).BpmPackage.PkgInfo.Name] = action.(*RemovePackageAction)
+		}
+	}
+
+	for pkg, action := range removeActions {
+		dependants, err := GetPackageDependants(action.BpmPackage.PkgInfo.Name, operation.RootDir)
+		if err != nil {
+			return errors.New("could not get dependant packages for package (" + pkg + ")")
+		}
+		dependants = slices.DeleteFunc(dependants, func(d string) bool {
+			if _, ok := removeActions[d]; ok {
+				return true
+			}
+			return false
+		})
+		if len(dependants) != 0 {
+			operation.RemoveAction(pkg, action.GetActionType())
+		}
+	}
+
+	return nil
+}
+
+func (operation *BPMOperation) Cleanup(cleanupMakeDepends bool) error {
+	// Get all installed packages
+	installedPackageNames, err := GetInstalledPackages(operation.RootDir)
+	if err != nil {
+		return fmt.Errorf("could not get installed packages: %s", err)
+	}
+	installedPackages := make([]*PackageInfo, len(installedPackageNames))
+	for i, value := range installedPackageNames {
+		bpmpkg := GetPackage(value, operation.RootDir)
+		if bpmpkg == nil {
+			return errors.New("could not find installed package (" + value + ")")
+		}
+		installedPackages[i] = bpmpkg.PkgInfo
+	}
+
+	// Get packages to remove
+	removeActions := make(map[string]*RemovePackageAction)
+	for _, action := range slices.Clone(operation.Actions) {
+		if action.GetActionType() == "remove" {
+			removeActions[action.(*RemovePackageAction).BpmPackage.PkgInfo.Name] = action.(*RemovePackageAction)
+		}
+	}
+
+	// Get manually installed packages, resolve all their dependencies and add them to the keepPackages slice
+	keepPackages := make([]string, 0)
+	for _, pkg := range slices.Clone(installedPackages) {
+		if GetInstallationReason(pkg.Name, operation.RootDir) != InstallationReasonManual {
+			continue
+		}
+
+		// Do not resolve dependencies or add package to keepPackages slice if package removal action exists for it
+		if _, ok := removeActions[pkg.Name]; ok {
+			continue
+		}
+
+		keepPackages = append(keepPackages, pkg.Name)
+		resolved := pkg.GetAllDependencies(!cleanupMakeDepends, true, operation.RootDir)
+		for _, value := range resolved {
+			if !slices.Contains(keepPackages, value) {
+				keepPackages = append(keepPackages, value)
+			}
+		}
+	}
+
+	// Get all installed packages that are not in the keepPackages slice and add them to the BPM operation
+	for _, pkg := range installedPackageNames {
+		// Do not add package removal action if there already is one
+		if _, ok := removeActions[pkg]; ok {
+			continue
+		}
+		if !slices.Contains(keepPackages, pkg) {
+			bpmpkg := GetPackage(pkg, operation.RootDir)
+			if bpmpkg == nil {
+				return errors.New("Error: could not find installed package (" + pkg + ")")
+			}
+			operation.Actions = append(operation.Actions, &RemovePackageAction{BpmPackage: bpmpkg})
+		}
+	}
+
+	return nil
+}
+
+func (operation *BPMOperation) ReplaceObsoletePackages() {
+	for _, value := range slices.Clone(operation.Actions) {
+		var pkgInfo *PackageInfo
+		if value.GetActionType() == "install" {
+			action := value.(*InstallPackageAction)
+			pkgInfo = action.BpmPackage.PkgInfo
+
+		} else if value.GetActionType() == "fetch" {
+			action := value.(*FetchPackageAction)
+			pkgInfo = action.DatabaseEntry.Info
+		} else {
+			continue
+		}
+
+		for _, r := range pkgInfo.Replaces {
+			if bpmpkg := GetPackage(r, operation.RootDir); bpmpkg != nil && !operation.ActionsContainPackage(bpmpkg.PkgInfo.Name) {
+				operation.InsertActionAt(0, &RemovePackageAction{
+					BpmPackage: bpmpkg,
+				})
+			}
+		}
+	}
+}
+
+func (operation *BPMOperation) CheckForConflicts() (map[string][]string, error) {
+	conflicts := make(map[string][]string)
+	installedPackages, err := GetInstalledPackages(operation.RootDir)
+	if err != nil {
+		return nil, err
+	}
+	allPackages := make([]*PackageInfo, len(installedPackages))
+	for i, value := range installedPackages {
+		bpmpkg := GetPackage(value, operation.RootDir)
+		if bpmpkg == nil {
+			return nil, fmt.Errorf("could not find installed package (%s)", value)
+		}
+		allPackages[i] = bpmpkg.PkgInfo
+	}
+
+	// Add all new packages to the allPackages slice
+	for _, value := range slices.Clone(operation.Actions) {
+		if value.GetActionType() == "install" {
+			action := value.(*InstallPackageAction)
+			pkgInfo := action.BpmPackage.PkgInfo
+			allPackages = append(allPackages, pkgInfo)
+		} else if value.GetActionType() == "fetch" {
+			action := value.(*FetchPackageAction)
+			pkgInfo := action.DatabaseEntry.Info
+			allPackages = append(allPackages, pkgInfo)
+		} else if value.GetActionType() == "remove" {
+			action := value.(*RemovePackageAction)
+			pkgInfo := action.BpmPackage.PkgInfo
+			for i := len(allPackages) - 1; i >= 0; i-- {
+				info := allPackages[i]
+				if info.Name == pkgInfo.Name {
+					allPackages = append(allPackages[:i], allPackages[i+1:]...)
+				}
+			}
+		}
+	}
+
+	for _, value := range allPackages {
+		for _, conflict := range value.Conflicts {
+			if slices.ContainsFunc(allPackages, func(info *PackageInfo) bool {
+				return info.Name == conflict
+			}) {
+				conflicts[value.Name] = append(conflicts[value.Name], conflict)
+			}
+		}
+	}
+
+	return conflicts, nil
+}
+
+func (operation *BPMOperation) ShowOperationSummary() {
+	if len(operation.Actions) == 0 {
+		fmt.Println("No action needs to be taken")
+		return
+	}
+
+	for _, value := range operation.Actions {
+		var pkgInfo *PackageInfo
+		var installationReason = InstallationReasonUnknown
+		if value.GetActionType() == "install" {
+			installationReason = value.(*InstallPackageAction).InstallationReason
+			pkgInfo = value.(*InstallPackageAction).BpmPackage.PkgInfo
+			if value.(*InstallPackageAction).SplitPackageToInstall != "" {
+				pkgInfo = pkgInfo.GetSplitPackageInfo(value.(*InstallPackageAction).SplitPackageToInstall)
+			}
+		} else if value.GetActionType() == "fetch" {
+			installationReason = value.(*FetchPackageAction).InstallationReason
+			pkgInfo = value.(*FetchPackageAction).DatabaseEntry.Info
+		} else {
+			pkgInfo = value.(*RemovePackageAction).BpmPackage.PkgInfo
+			fmt.Printf("%s: %s (Remove)\n", pkgInfo.Name, pkgInfo.GetFullVersion())
+			continue
+		}
+
+		installedInfo := GetPackageInfo(pkgInfo.Name, operation.RootDir)
+		additionalInfo := ""
+		switch installationReason {
+		case InstallationReasonManual:
+			additionalInfo = "(Manual)"
+		case InstallationReasonDependency:
+			additionalInfo = "(Dependency)"
+		case InstallationReasonMakeDependency:
+			additionalInfo = "(Make dependency)"
+		default:
+			additionalInfo = "(Unknown)"
+		}
+
+		if pkgInfo.Type == "source" {
+			additionalInfo += " (From Source)"
+		}
+
+		if installedInfo == nil {
+			fmt.Printf("%s: %s (Install) %s\n", pkgInfo.Name, pkgInfo.GetFullVersion(), additionalInfo)
+		} else {
+			comparison := ComparePackageVersions(*pkgInfo, *installedInfo)
+			if comparison < 0 {
+				fmt.Printf("%s: %s -> %s (Downgrade) %s\n", pkgInfo.Name, installedInfo.GetFullVersion(), pkgInfo.GetFullVersion(), additionalInfo)
+			} else if comparison > 0 {
+				fmt.Printf("%s: %s -> %s (Upgrade) %s\n", pkgInfo.Name, installedInfo.GetFullVersion(), pkgInfo.GetFullVersion(), additionalInfo)
+			} else {
+				fmt.Printf("%s: %s (Reinstall) %s\n", pkgInfo.Name, pkgInfo.GetFullVersion(), additionalInfo)
+			}
+		}
+	}
+
+	if operation.RootDir != "/" {
+		fmt.Println("Warning: Operating in " + operation.RootDir)
+	}
+	if operation.GetTotalDownloadSize() > 0 {
+		fmt.Printf("%s will be downloaded to complete this operation\n", unsignedBytesToHumanReadable(operation.GetTotalDownloadSize()))
+	}
+	if operation.GetFinalActionSize(operation.RootDir) > 0 {
+		fmt.Printf("A total of %s will be installed after the operation finishes\n", bytesToHumanReadable(operation.GetFinalActionSize(operation.RootDir)))
+	} else if operation.GetFinalActionSize(operation.RootDir) < 0 {
+		fmt.Printf("A total of %s will be freed after the operation finishes\n", strings.TrimPrefix(bytesToHumanReadable(operation.GetFinalActionSize(operation.RootDir)), "-"))
+	}
+}
+
+func (operation *BPMOperation) RunHooks(verbose bool) error {
+	// Return if hooks directory does not exist
+	if stat, err := os.Stat(path.Join(operation.RootDir, "var/lib/bpm/hooks")); err != nil || !stat.IsDir() {
+		return nil
+	}
+
+	// Get directory entries in hooks directory
+	dirEntries, err := os.ReadDir(path.Join(operation.RootDir, "var/lib/bpm/hooks"))
+	if err != nil {
+		return err
+	}
+
+	// Find all hooks, validate and execute them
+	for _, entry := range dirEntries {
+		if entry.Type().IsRegular() && strings.HasSuffix(entry.Name(), ".bpmhook") {
+			hook, err := createHook(path.Join(operation.RootDir, "var/lib/bpm/hooks", entry.Name()))
+			if err != nil {
+				log.Printf("Error while reading hook (%s): %s", entry.Name(), err)
+			}
+
+			err = hook.Execute(operation.Changes, verbose, operation.RootDir)
+			if err != nil {
+				log.Printf("Warning: could not execute hook (%s): %s\n", entry.Name(), err)
+				continue
+			}
+		}
+	}
+
+	return nil
+}
+
+func (operation *BPMOperation) Execute(verbose, force bool) (err error) {
+	// Fetch packages from databases
+	if slices.ContainsFunc(operation.Actions, func(action OperationAction) bool {
+		return action.GetActionType() == "fetch"
+	}) {
+		fmt.Println("Fetching packages from available databases...")
+
+		// Create map for fetched packages
+		fetchedPackages := make(map[string]string)
+
+		for i, action := range operation.Actions {
+			if action.GetActionType() != "fetch" {
+				continue
+			}
+
+			// Get database entry
+			entry := action.(*FetchPackageAction).DatabaseEntry
+
+			// Create bpmpkg variable
+			var bpmpkg *BPMPackage
+
+			// Check if package has already been fetched from download link
+			if _, ok := fetchedPackages[entry.Download]; !ok {
+				// Fetch package from database
+				fetchedPackage, err := entry.Database.FetchPackage(entry.Info.Name)
+				if err != nil {
+					return fmt.Errorf("could not fetch package (%s): %s\n", entry.Info.Name, err)
+				}
+
+				// Read fetched package
+				bpmpkg, err = ReadPackage(fetchedPackage)
+				if err != nil {
+					return fmt.Errorf("could not fetch package (%s): %s\n", entry.Info.Name, err)
+				}
+
+				// Add fetched package to map
+				fetchedPackages[entry.Download] = fetchedPackage
+
+				fmt.Printf("Package (%s) was successfully fetched!\n", entry.Info.Name)
+			} else {
+				// Read fetched package
+				bpmpkg, err = ReadPackage(fetchedPackages[entry.Download])
+				if err != nil {
+					return fmt.Errorf("could not read package (%s): %s\n", entry.Info.Name, err)
+				}
+
+				fmt.Printf("Package (%s) was successfully fetched!\n", entry.Info.Name)
+			}
+
+			if bpmpkg.PkgInfo.IsSplitPackage() {
+				operation.Actions[i] = &InstallPackageAction{
+					File:                  fetchedPackages[entry.Download],
+					InstallationReason:    action.(*FetchPackageAction).InstallationReason,
+					BpmPackage:            bpmpkg,
+					SplitPackageToInstall: entry.Info.Name,
+				}
+			} else {
+				operation.Actions[i] = &InstallPackageAction{
+					File:               fetchedPackages[entry.Download],
+					InstallationReason: action.(*FetchPackageAction).InstallationReason,
+					BpmPackage:         bpmpkg,
+				}
+			}
+		}
+	}
+
+	// Determine words to be used for the following message
+	words := make([]string, 0)
+	if slices.ContainsFunc(operation.Actions, func(action OperationAction) bool {
+		return action.GetActionType() == "install"
+	}) {
+		words = append(words, "Installing")
+	}
+
+	if slices.ContainsFunc(operation.Actions, func(action OperationAction) bool {
+		return action.GetActionType() == "remove"
+	}) {
+		words = append(words, "Removing")
+	}
+
+	if len(words) == 0 {
+		return nil
+	}
+	fmt.Printf("%s packages...\n", strings.Join(words, "/"))
+
+	// Installing/Removing packages from system
+	for _, action := range operation.Actions {
+		if action.GetActionType() == "remove" {
+			pkgInfo := action.(*RemovePackageAction).BpmPackage.PkgInfo
+			err := removePackage(pkgInfo.Name, verbose, operation.RootDir)
+			if err != nil {
+				return fmt.Errorf("could not remove package (%s): %s\n", pkgInfo.Name, err)
+			}
+		} else if action.GetActionType() == "install" {
+			value := action.(*InstallPackageAction)
+			fileToInstall := value.File
+			bpmpkg := value.BpmPackage
+			var err error
+
+			// Compile package if type is 'source'
+			if bpmpkg.PkgInfo.Type == "source" {
+				// Get path to compiled package directory
+				compiledDir := path.Join(operation.RootDir, "/var/cache/bpm/compiled/")
+
+				// Create compiled package directory if not exists
+				if _, err := os.Stat(compiledDir); err != nil {
+					err := os.MkdirAll(compiledDir, 0755)
+					if err != nil {
+						return err
+					}
+				}
+
+				// Get package name to install
+				pkgNameToInstall := bpmpkg.PkgInfo.Name
+				if bpmpkg.PkgInfo.IsSplitPackage() {
+					pkgNameToInstall = value.SplitPackageToInstall
+				}
+
+				// Compile source package if not compiled already
+				if _, ok := operation.compiledPackages[pkgNameToInstall]; !ok {
+					outputBpmPackages, err := CompileSourcePackage(value.File, compiledDir, false)
+					if err != nil {
+						return fmt.Errorf("could not compile source package (%s): %s\n", value.File, err)
+					}
+
+					// Add compiled packages to slice
+					for pkgName, pkgFile := range outputBpmPackages {
+						operation.compiledPackages[pkgName] = pkgFile
+					}
+				}
+
+				// Set values
+				fileToInstall = operation.compiledPackages[pkgNameToInstall]
+				bpmpkg, err = ReadPackage(fileToInstall)
+				if err != nil {
+					return fmt.Errorf("could not read package (%s): %s\n", fileToInstall, err)
+				}
+			}
+
+			if value.InstallationReason != InstallationReasonManual {
+				err = installPackage(fileToInstall, operation.RootDir, verbose, true)
+			} else {
+				err = installPackage(fileToInstall, operation.RootDir, verbose, force)
+			}
+			if err != nil {
+				return fmt.Errorf("could not install package (%s): %s\n", bpmpkg.PkgInfo.Name, err)
+			}
+
+			// Set installed package's installation reason
+			err = SetInstallationReason(bpmpkg.PkgInfo.Name, value.InstallationReason, operation.RootDir)
+			if err != nil {
+				return fmt.Errorf("could not set installation reason for package (%s): %s\n", value.BpmPackage.PkgInfo.Name, err)
+			}
+
+			fmt.Printf("Package (%s) was successfully installed\n", bpmpkg.PkgInfo.Name)
+		}
+	}
+	fmt.Println("Operation complete!")
+
+	return nil
+}
+
+type OperationAction interface {
+	GetActionType() string
+}
+
+type InstallPackageAction struct {
+	File                  string
+	InstallationReason    InstallationReason
+	SplitPackageToInstall string
+	BpmPackage            *BPMPackage
+}
+
+func (action *InstallPackageAction) GetActionType() string {
+	return "install"
+}
+
+type FetchPackageAction struct {
+	InstallationReason InstallationReason
+	DatabaseEntry      *BPMDatabaseEntry
+}
+
+func (action *FetchPackageAction) GetActionType() string {
+	return "fetch"
+}
+
+type RemovePackageAction struct {
+	BpmPackage *BPMPackage
+}
+
+func (action *RemovePackageAction) GetActionType() string {
+	return "remove"
+}

src/bpmlib/tarball.go

@@ -0,0 +1,209 @@
+package bpmlib
+
+import (
+	"archive/tar"
+	"errors"
+	"io"
+	"os"
+	"path"
+	"strings"
+)
+
+type tarballFileReader struct {
+	tarReader *tar.Reader
+	file      *os.File
+}
+
+func listTarballContent(tarballPath string) (content []string, err error) {
+	file, err := os.Open(tarballPath)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+
+	tr := tar.NewReader(file)
+	for {
+		header, err := tr.Next()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return nil, err
+		}
+
+		switch header.Typeflag {
+		case tar.TypeDir:
+			continue
+		default:
+			content = append(content, header.Name)
+		}
+	}
+
+	return content, nil
+}
+
+func readTarballFile(tarballPath, fileToExtract string) (*tarballFileReader, error) {
+	file, err := os.Open(tarballPath)
+	if err != nil {
+		return nil, err
+	}
+
+	tr := tar.NewReader(file)
+	for {
+		header, err := tr.Next()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return nil, err
+		}
+		if header.Name == fileToExtract {
+			if header.Typeflag != tar.TypeReg {
+				return nil, errors.New("file to extract must be a regular file")
+			}
+
+			return &tarballFileReader{
+				tarReader: tr,
+				file:      file,
+			}, nil
+		}
+	}
+
+	return nil, errors.New("could not file in tarball")
+}
+
+func extractTarballFile(tarballPath, fileToExtract string, workingDirectory string, uid, gid int) (err error) {
+	file, err := os.Open(tarballPath)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+
+	tr := tar.NewReader(file)
+	for {
+		header, err := tr.Next()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return err
+		}
+
+		// Skip if filename does not match
+		if header.Name != fileToExtract {
+			continue
+		}
+
+		// Trim directory name from header name
+		header.Name = strings.Split(header.Name, "/")[len(strings.Split(header.Name, "/"))-1]
+		outputPath := path.Join(workingDirectory, header.Name)
+
+		switch header.Typeflag {
+		case tar.TypeReg:
+			// Create file and set permissions
+			file, err = os.Create(outputPath)
+			if err != nil {
+				return err
+			}
+			err := file.Chmod(header.FileInfo().Mode())
+			if err != nil {
+				return err
+			}
+			if uid >= 0 && gid >= 0 {
+				err = file.Chown(uid, gid)
+				if err != nil {
+					return err
+				}
+			}
+
+			// Copy data to file
+			_, err = io.Copy(file, tr)
+			if err != nil {
+				return err
+			}
+
+			// Close file
+			file.Close()
+		default:
+			continue
+		}
+	}
+
+	return nil
+}
+
+func extractTarballDirectory(tarballPath, directoryToExtract, workingDirectory string, uid, gid int) (err error) {
+	file, err := os.Open(tarballPath)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+
+	tr := tar.NewReader(file)
+	for {
+		header, err := tr.Next()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return err
+		}
+
+		if strings.HasPrefix(header.Name, directoryToExtract+"/") {
+			// Skip directory to extract
+			if strings.TrimRight(header.Name, "/") == workingDirectory {
+				continue
+			}
+
+			// Trim directory name from header name
+			header.Name = strings.TrimPrefix(header.Name, directoryToExtract+"/")
+			outputPath := path.Join(workingDirectory, header.Name)
+
+			switch header.Typeflag {
+			case tar.TypeDir:
+				// Create directory
+				err := os.MkdirAll(outputPath, 0755)
+				if err != nil {
+					return err
+				}
+
+				// Set directory owner
+				if uid >= 0 && gid >= 0 {
+					err = os.Chown(outputPath, uid, gid)
+					if err != nil {
+						return err
+					}
+				}
+			case tar.TypeReg:
+				// Create file and set permissions
+				file, err = os.Create(outputPath)
+				if err != nil {
+					return err
+				}
+				err := file.Chmod(header.FileInfo().Mode())
+				if err != nil {
+					return err
+				}
+				if uid >= 0 && gid >= 0 {
+					err = file.Chown(uid, gid)
+					if err != nil {
+						return err
+					}
+				}
+
+				// Copy data to file
+				_, err = io.Copy(file, tr)
+				if err != nil {
+					return err
+				}
+
+				// Close file
+				file.Close()
+			default:
+				continue
+			}
+		}
+	}
+
+	return nil
+}

src/bpmlib/utils.go

@@ -0,0 +1,53 @@
+package bpmlib
+
+import (
+	"fmt"
+	"math"
+	"syscall"
+)
+
+func GetArch() string {
+	uname := syscall.Utsname{}
+	err := syscall.Uname(&uname)
+	if err != nil {
+		return "unknown"
+	}
+
+	var byteString [65]byte
+	var indexLength int
+	for ; uname.Machine[indexLength] != 0; indexLength++ {
+		byteString[indexLength] = uint8(uname.Machine[indexLength])
+	}
+	return string(byteString[:indexLength])
+}
+
+func stringSliceRemove(s []string, r string) []string {
+	for i, v := range s {
+		if v == r {
+			return append(s[:i], s[i+1:]...)
+		}
+	}
+	return s
+}
+
+func unsignedBytesToHumanReadable(b uint64) string {
+	bf := float64(b)
+	for _, unit := range []string{"", "Ki", "Mi", "Gi", "Ti", "Pi", "Ei", "Zi"} {
+		if math.Abs(bf) < 1024.0 {
+			return fmt.Sprintf("%3.1f%sB", bf, unit)
+		}
+		bf /= 1024.0
+	}
+	return fmt.Sprintf("%.1fYiB", bf)
+}
+
+func bytesToHumanReadable(b int64) string {
+	bf := float64(b)
+	for _, unit := range []string{"", "Ki", "Mi", "Gi", "Ti", "Pi", "Ei", "Zi"} {
+		if math.Abs(bf) < 1024.0 {
+			return fmt.Sprintf("%3.1f%sB", bf, unit)
+		}
+		bf /= 1024.0
+	}
+	return fmt.Sprintf("%.1fYiB", bf)
+}

test_packages/x86_64/bpm-utils/files/usr/bin/bpm-create

@@ -1,51 +0,0 @@
-#!/bin/bash
-if [ $# -eq 0 ]
-then
-  echo "No output package name given!"
-  exit 1
-fi
-
-output=$1
-
-if [[ ! "$output" =~ ^[a-z.A-Z0-9_-]{1,}$ ]]; then
-  echo "Invalid output name! The name must only contain letters, numbers, hyphens or underscores!"
-  exit 1
-fi
-
-type="binary"
-
-echo "Creating package with the name $output..."
-
-if [ -d files ]; then
-  echo "files/ directory found"
-else
-  if [ -f source.sh ]; then
-    type="source"
-    echo "source.sh file found"
-    if [ -d source-files ]; then
-      echo "source-files/ directory found"
-    fi
-  else
-    echo "files/ directory or source.sh file not found in $PWD"
-    exit 1
-  fi
-fi
-
-if [ -f pkg.info ]; then
-  echo "pkg.info file found"
-else
-  echo "pkg.info file not found in $PWD"
-  exit 1
-fi
-
-echo "Creating $type package as $output"
-
-if [[ "$type" == "binary" ]]; then
-  tar -czf "$output" files/ pkg.info
-else
-  if [ -d source-files ]; then
-    tar -czf "$output" source.sh source-files/ pkg.info
-  else
-    tar -czf "$output" source.sh pkg.info
-  fi
-fi

test_packages/x86_64/bpm-utils/files/usr/bin/bpm-setup

@@ -1,66 +0,0 @@
-#!/bin/bash
-if [ $# -lt 2 ]; then
-  echo "Arguments missing! Try 'bpm-setup <directory> <binary/source>'"
-  exit 1
-fi
-
-output=$1
-type=$2
-
-if [[ ! "$output" =~ ^[a-zA-Z0-9_-]{1,}$ ]]; then
-  echo "Invalid output name! The name must only contain letters, numbers, hyphens or underscores!"
-  exit 1
-fi
-
-if [[ "$type" != "binary" ]] && [[ "$type" != "source" ]]; then
-  echo "Invalid package type! Package type must be either 'binary' or 'source'"
-  exit 1
-fi
-
-mkdir -pv $output
-cd $output
-
-if [[ "$type" == "binary" ]]; then
-  cat > pkg.info << EOF
-name: package_name
-description: Package Description
-version: 1.0
-url: your package's website/repository url. Optonal
-license: your package's license. Optional  
-architecture: $(uname -m)
-type: binary
-EOF
-  mkdir -pv files
-  echo "Package directory created successfully!"
-  echo "Make sure to edit the pkg.info file with the appropriate information for your package"
-  echo "Add your binaries under the files/ directory. For example a binary called 'my_binary' should go under files/usr/bin/my_binary"
-  echo "You can turn your package into a .bpm file use the 'bpm-create <name>' command"
-else
-  cat > pkg.info << EOF
-name: package_name
-description: Package Description
-version: 1.0
-url: your package's website/repository url. Optional
-license: your package's license. Optional
-architecture: any
-type: source
-EOF
-  cat > source.sh << 'EOF'
-# This is the source.sh script. It is executed by BPM in a temporary directory when compiling a source package
-# BPM expects there to be an 'output' directory under the root of the temporary directory after this script finishes executing, otherwise your program may not be correctly installed
-# It is recommended you create the 'output' directory along with a 'source' directory in the root of the temporary directory like this
-echo "Compiling my_program..."
-# Creating 'source' and 'output' directory variables
-source=$(pwd)/source
-output=$(pwd)/output
-# Creating the 'source' and 'output' directories
-mkdir $source
-mkdir $output
-# Downloading files
-git clone https://myrepo.com/repo.git source
-EOF
-  echo "Package directory created successfully!"
-  echo "Make sure to edit the pkg.info file with the appropriate information for your package"
-  echo "Add your compilation code in the source.sh file. Follow the instructions on the template file on how to do properly compile your program"
-  echo "You can turn your package into a .bpm file use the 'bpm-create <name>' command"
-fi

test_packages/x86_64/bpm-utils/pkg.info

@@ -1,7 +0,0 @@
-name: bpm-utils
-description: Utilities to create BPM packages
-version: 1.3.0
-url: https://gitlab.com/bubble-package-manager/bpm/
-license: GPL3
-architecture: x86_64
-type: binary

test_packages/x86_64/bpm/pkg.info

@@ -1,7 +0,0 @@
-name: bpm
-description: The Bubble Package Manager
-version: 0.1.5
-url: https://gitlab.com/bubble-package-manager/bpm/
-license: GPL3
-architecture: x86_64
-type: binary

test_packages/x86_64/hello/pkg.info

@@ -1,5 +0,0 @@
-name: hello
-description: A simple hello world program
-version: 1.0
-architecture: x86_64
-type: binary

test_packages/x86_64/htop-src/pkg.info

@@ -1,8 +0,0 @@
-name: htop
-description: An interactive process viewer
-version: 3.3.0
-url: https://github.com/htop-dev/htop
-license: GPL2
-architecture: x86_64
-type: source
-#make_depends: git

test_packages/x86_64/htop-src/source.sh

@@ -1,20 +0,0 @@
-# This file is read and executed by BPM to compile htop. It will run inside a temporary folder in /tmp during execution
-echo "Compiling htop..."
-# Creating 'source' directory
-mkdir source
-# Cloning the git repository into the 'source' directory
-git clone https://github.com/htop-dev/htop.git source
-# Changing directory into 'source'
-cd source
-# Configuring and making htop according to the installation instructions in the repository
-./autogen.sh
-./configure --prefix=/usr
-make
-# Creating an 'output' directory in the root of the temporary directory created by BPM
-mkdir ./../output/
-# Setting $dir to the 'output' directory
-dir=$(pwd)/../output/
-# Installing htop to $dir
-make DESTDIR="$dir" install
-# The compilation is done. BPM will now copy the files from the 'output' directory into the root of your system
-echo "htop compilation complete!"