Added a very basic argument system, a simple installation and removal system and the bpm test package

bpm_package/pkg.info

@@ -0,0 +1,4 @@
+name: bpm
+description: The Bubble Package Manager
+version: 0.0.1
+type: binary

main.go

@@ -1,8 +1,11 @@
 package main
 
 import (
+	"bufio"
 	"fmt"
 	"log"
+	"os"
+	"strings"
 )
 
 /* ---BPM | Bubble Package Manager--- */
@@ -10,21 +13,135 @@ import (
 /*   A simple-to-use package manager  */
 /* ---------------------------------- */
 
+var bpmVer = "0.0.1"
 var rootDir string = "/"
 
 func main() {
 	fmt.Printf("Running %s %s\n", getKernel(), getArch())
-	//_, err := readPackage("test_hello_package/hello.bpm")
+	resolveCommand()
+	/*_, err := readPackage("test_hello_package/hello.bpm")
 	err := installPackage("test_hello_package/hello.bpm", rootDir)
 	if err != nil {
 		log.Fatalf("Could not read package\nError: %s\n", err)
 	}
-	pkgs, err := getInstalledPackages(rootDir)
-	if err != nil {
-		log.Fatalf("Could not get installed Packages!\nError: %s\n", err)
-	}
-	for _, pkg := range pkgs {
-		fmt.Println(pkg)
-	}
-	fmt.Println(getPackageFiles("hello"))
+	removePackage("hello")*/
+}
+
+func getArgs() []string {
+	return os.Args[1:]
+}
+
+type commandType uint8
+
+const (
+	help commandType = iota
+	version
+	info
+	list
+	install
+	remove
+	cleanup
+)
+
+func getCommandType() commandType {
+	if len(getArgs()) == 0 {
+		return help
+	}
+	cmd := getArgs()[0]
+	switch cmd {
+	case "version":
+		return version
+	case "info":
+		return info
+	case "list":
+		return list
+	case "install":
+		return install
+	case "remove":
+		return remove
+	case "cleanup":
+		return cleanup
+	default:
+		return help
+	}
+}
+
+func resolveCommand() {
+	switch getCommandType() {
+	case version:
+		fmt.Println("Bubble Package Manager (BPM)")
+		fmt.Println("Version: " + bpmVer)
+	case info:
+		packages := getArgs()[1:]
+		if len(packages) == 0 {
+			fmt.Println("No packages were given")
+			return
+		}
+		for n, pkg := range packages {
+			info := getPackageInfo(pkg)
+			if info == nil {
+				fmt.Printf("Package (%s) could not be found\n", pkg)
+				continue
+			}
+			fmt.Print("---------------\n" + createInfoFile(*info))
+			if n == len(packages)-1 {
+				fmt.Println("---------------")
+			}
+		}
+	case install:
+		files := getArgs()[1:]
+		if len(files) == 0 {
+			fmt.Println("No files were given to install")
+			return
+		}
+		for _, file := range files {
+			pkgInfo, err := readPackage(file)
+			if err != nil {
+				log.Fatalf("Could not read package\nError: %s\n", err)
+			}
+			fmt.Print("---------------\n" + createInfoFile(*pkgInfo))
+			fmt.Println("---------------")
+			reader := bufio.NewReader(os.Stdin)
+			fmt.Print("Do you wish to install 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 = installPackage(file, rootDir)
+			if err != nil {
+				log.Fatalf("Could not install package\nError: %s\n", err)
+			}
+			fmt.Printf("Package (%s) was successfully installed!\n", pkgInfo.name)
+		}
+	case remove:
+		packages := getArgs()[1:]
+		if len(packages) == 0 {
+			fmt.Println("No packages were given")
+			return
+		}
+		for _, pkg := range packages {
+			pkgInfo := getPackageInfo(pkg)
+			if pkgInfo == nil {
+				fmt.Printf("Package (%s) could not be found\n", pkg)
+				continue
+			}
+			fmt.Print("---------------\n" + createInfoFile(*pkgInfo))
+			fmt.Println("---------------")
+			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 := removePackage(pkg)
+			if err != nil {
+				log.Fatalf("Could not remove package\nError: %s\n", err)
+			}
+			fmt.Printf("Package (%s) was successfully removed!\n", pkgInfo.name)
+		}
+	default:
+		fmt.Println("help...")
+	}
 }

package_utils.go

@@ -5,6 +5,7 @@ import (
 	"bufio"
 	"compress/gzip"
 	"errors"
+	"fmt"
 	"io"
 	"os"
 	"path"
@@ -17,6 +18,7 @@ type packageInfo struct {
 	name        string
 	description string
 	version     string
+	pkgType     string
 	depends     []string
 	provides    []string
 }
@@ -62,6 +64,9 @@ func readPackageInfo(contents string) (*packageInfo, error) {
 	pkgInfo := packageInfo{}
 	lines := strings.Split(contents, "\n")
 	for num, line := range lines {
+		if len(strings.TrimSpace(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))
@@ -75,6 +80,8 @@ func readPackageInfo(contents string) (*packageInfo, error) {
 			pkgInfo.description = split[1]
 		case "version":
 			pkgInfo.version = split[1]
+		case "type":
+			pkgInfo.pkgType = split[1]
 		}
 	}
 	return &pkgInfo, nil
@@ -85,6 +92,7 @@ func createInfoFile(pkgInfo packageInfo) string {
 	ret = ret + "name: " + pkgInfo.name + "\n"
 	ret = ret + "description: " + pkgInfo.description + "\n"
 	ret = ret + "version: " + pkgInfo.version + "\n"
+	ret = ret + "type: " + pkgInfo.pkgType + "\n"
 	return ret
 }
 
@@ -198,7 +206,7 @@ func installPackage(filename, installDir string) error {
 	return nil
 }
 
-func getInstalledPackages(rootDir string) ([]string, error) {
+func getInstalledPackages() ([]string, error) {
 	dataDir := path.Join(rootDir, "var/lib/bpm/installed/")
 	items, err := os.ReadDir(dataDir)
 	if os.IsNotExist(err) {
@@ -235,3 +243,66 @@ func getPackageFiles(pkg string) []string {
 	}
 	return ret
 }
+
+func getPackageInfo(pkg string) *packageInfo {
+	dataDir := path.Join(rootDir, "var/lib/bpm/installed/")
+	pkgDir := path.Join(dataDir, pkg)
+	files := path.Join(pkgDir, "info")
+	if _, err := os.Stat(dataDir); 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))
+	if err != nil {
+		return nil
+	}
+	return info
+}
+
+func removePackage(pkg string) error {
+	dataDir := path.Join(rootDir, "var/lib/bpm/installed/")
+	pkgDir := path.Join(dataDir, pkg)
+	files := getPackageFiles(pkg)
+	for _, file := range files {
+		file = path.Join(rootDir, file)
+		stat, err := os.Stat(file)
+		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
+}

test_hello_package/pkg.info

@@ -1,3 +1,4 @@
 name: hello
 description: A simple hello world program
-version: 1.0
+version: 1.0
+type: binary