Add package compilation flags

src/bpm/main.go

@@ -92,7 +92,7 @@ func main() {
 		currentFlagSet.String("installation-reason", "", "Specify the installation reason to use for the specified packages")
 		currentFlagSet.BoolP("reinstall", "r", false, "Reinstall the specified packages")
 		currentFlagSet.IntP("jobs", "j", bpmlib.CompilationBPMConfig.CompilationJobs, "Set the amount of concurrent processes to use for source package compilation")
-		currentFlagSet.BoolP("skip-checks", "s", false, "Skip the check function in source.sh scripts")
+		currentFlagSet.Bool("skip-checks", false, "Skip the check function in recipe.sh scripts")
 		setupFlagsAndHelp(currentFlagSet, fmt.Sprintf("bpm %s <options>", subcommand), "Install the specified packages", os.Args[2:])
 
 		installPackages()
@@ -141,7 +141,7 @@ func main() {
 		currentFlagSet.BoolP("yes", "y", false, "Enter 'yes' in all prompts")
 		currentFlagSet.BoolP("no-sync", "n", false, "Do not sync databases")
 		currentFlagSet.Bool("allow-downgrades", false, "Allow package downgrades")
-		currentFlagSet.BoolP("skip-checks", "s", false, "Skip the check function in source.sh scripts")
+		currentFlagSet.Bool("skip-checks", false, "Skip the check function in recipe.sh scripts")
 		currentFlagSet.IntP("jobs", "j", bpmlib.CompilationBPMConfig.CompilationJobs, "Set the amount of concurrent processes to use for source package compilation")
 		setupFlagsAndHelp(currentFlagSet, fmt.Sprintf("bpm %s <options>", subcommand), "Update installed packages", os.Args[2:])
 
@@ -161,7 +161,7 @@ func main() {
 		currentFlagSet.BoolP("force", "f", false, "Bypass warnings during package compilation")
 		currentFlagSet.BoolP("yes", "y", false, "Enter 'yes' in all prompts")
 		currentFlagSet.BoolP("depends", "d", false, "Install required dependencies for package compilation")
-		currentFlagSet.BoolP("skip-checks", "s", false, "Skip the check function in source.sh scripts")
+		currentFlagSet.Bool("skip-checks", false, "Skip the check function in recipe.sh scripts")
 		currentFlagSet.BoolP("keep", "k", false, "Keep compilation files after successful package compilation")
 		currentFlagSet.BoolP("output-directory", "o", false, "Set the output directory for the binary packages")
 		currentFlagSet.Int("output-fd", -1, "Set the file descriptor output package names will be written to")
@@ -239,18 +239,20 @@ func showPackageInfo() {
 	}
 
 	for n, pkg := range packages {
-		if showDatabaseInfo {
+		// Deconstruct package string
-			var err error
+		d, err := bpmlib.DeconstructPackageString(pkg)
-			var entry *bpmlib.BPMDatabaseEntry
-			entry, _, err = bpmlib.GetDatabaseEntry(pkg)
 		if err != nil {
-				if providers := bpmlib.GetDatabaseVirtualPackageEntry(pkg); len(providers) > 0 {
+			log.Printf("Error: could not deconstruct package string: %s\n", err)
-					entry = providers[0]
-				} else {
-					log.Printf("Error: could not find package (%s) in any database\n", pkg)
 			exitCode = 1
 			return
 		}
+
+		if showDatabaseInfo {
+			entry := bpmlib.ResolveDatabaseEntry(d, rootDir)
+			if entry == nil {
+				log.Printf("Error: could not find package (%s) in any database\n", pkg)
+				exitCode = 1
+				return
 			}
 
 			if n != 0 {
@@ -263,8 +265,8 @@ func showPackageInfo() {
 
 		var bpmpkg *bpmlib.BPMPackage
 		isFile := false
-		if stat, err := os.Stat(pkg); err == nil && !stat.IsDir() {
+		if stat, err := os.Stat(d.PkgName); err == nil && !stat.IsDir() {
-			bpmpkg, err = bpmlib.ReadPackage(pkg)
+			bpmpkg, err = bpmlib.ReadPackage(d.PkgName)
 			if err != nil {
 				log.Printf("Error: could not read package: %s\n", err)
 				exitCode = 1
@@ -272,22 +274,30 @@ func showPackageInfo() {
 			}
 			isFile = true
 		} else {
-			if providers := bpmlib.GetVirtualPackageInfo(pkg, rootDir); len(providers) > 0 {
+			if providers := bpmlib.GetVirtualPackageInfo(d.PkgName, rootDir); len(providers) > 0 {
 				bpmpkg = bpmlib.GetPackage(providers[0].Name, rootDir)
 			} else {
-				bpmpkg = bpmlib.GetPackage(pkg, rootDir)
+				bpmpkg = bpmlib.GetPackage(d.PkgName, rootDir)
 			}
 		}
+
 		if bpmpkg == nil {
 			log.Printf("Error: package (%s) is not installed\n", pkg)
 			exitCode = 1
 			return
 		}
+
+		if !bpmlib.EvaluatePackageString(bpmpkg.PkgInfo, d) {
+			log.Printf("Error: package (%s) is not installed\n", pkg)
+			exitCode = 1
+			return
+		}
+
 		if n != 0 {
 			fmt.Println()
 		}
 		if isFile {
-			abs, err := filepath.Abs(pkg)
+			abs, err := filepath.Abs(d.PkgName)
 			if err != nil {
 				log.Printf("Error: could not get absolute path of file (%s)\n", abs)
 				exitCode = 1
@@ -618,7 +628,7 @@ func installPackages() {
 
 	// Create installation operation
 	operation, err := bpmlib.InstallPackages(rootDir, ir, reinstallPackages, installRuntime, force, !skipChecks, verbose, packages...)
-	if errors.As(err, &bpmlib.PackageNotFoundErr{}) || errors.As(err, &bpmlib.DependencyNotFoundErr{}) || errors.As(err, &bpmlib.PackageConflictErr{}) {
+	if errors.As(err, &bpmlib.PackageNotResolvedErr{}) || errors.As(err, &bpmlib.PackageConflictErr{}) {
 		log.Printf("Error: %s", err)
 		exitCode = 1
 		return
@@ -773,7 +783,7 @@ func removePackages() {
 
 	// Create remove operation
 	operation, err := bpmlib.RemovePackages(rootDir, force, cleanupPackages, packages...)
-	if errors.As(err, &bpmlib.PackageNotFoundErr{}) || errors.As(err, &bpmlib.DependencyNotFoundErr{}) || errors.As(err, &bpmlib.PackageConflictErr{}) {
+	if errors.As(err, &bpmlib.PackageNotResolvedErr{}) || errors.As(err, &bpmlib.PackageConflictErr{}) {
 		log.Printf("Error: %s", err)
 		exitCode = 1
 		return
@@ -917,7 +927,7 @@ func doCleanup() {
 
 		// Create cleanup operation
 		operation, err := bpmlib.CleanupPackages(cleanupMakeDepends, rootDir)
-		if errors.As(err, &bpmlib.PackageNotFoundErr{}) || errors.As(err, &bpmlib.DependencyNotFoundErr{}) || errors.As(err, &bpmlib.PackageConflictErr{}) {
+		if errors.As(err, &bpmlib.PackageNotResolvedErr{}) || errors.As(err, &bpmlib.PackageConflictErr{}) {
 			log.Printf("Error: %s", err)
 			exitCode = 1
 			return
@@ -1081,7 +1091,7 @@ func updatePackages() {
 
 	// Create update operation
 	operation, err := bpmlib.UpdatePackages(rootDir, !noSync, allowDowngrades, force, !skipChecks, verbose)
-	if errors.As(err, &bpmlib.PackageNotFoundErr{}) || errors.As(err, &bpmlib.DependencyNotFoundErr{}) || errors.As(err, &bpmlib.PackageConflictErr{}) {
+	if errors.As(err, &bpmlib.PackageNotResolvedErr{}) || errors.As(err, &bpmlib.PackageConflictErr{}) {
 		log.Printf("Error: %s", err)
 		exitCode = 1
 		return
@@ -1253,6 +1263,7 @@ func compilePackage() {
 	rootDir, _ := currentFlagSet.GetString("root")
 	verbose, _ := currentFlagSet.GetBool("verbose")
 	yesAll, _ := currentFlagSet.GetBool("yes")
+	force, _ := currentFlagSet.GetBool("force")
 	keepCompilationFiles, _ := currentFlagSet.GetBool("keep")
 	installSrcPkgDepends, _ := currentFlagSet.GetBool("depends")
 	skipChecks, _ := currentFlagSet.GetBool("skip-checks")
@@ -1285,8 +1296,16 @@ func compilePackage() {
 
 	// Compile packages
 	for _, sourcePackage := range sourcePackages {
-		if _, err := os.Stat(sourcePackage); os.IsNotExist(err) {
+		// Deconstruct package string
-			log.Printf("Error: file (%s) does not exist!", sourcePackage)
+		d, err := bpmlib.DeconstructPackageString(sourcePackage)
+		if err != nil {
+			log.Printf("Error: could not deconstruct package string: %s\n", err)
+			exitCode = 1
+			return
+		}
+
+		if _, err := os.Stat(d.PkgName); os.IsNotExist(err) {
+			log.Printf("Error: file (%s) does not exist!", d.PkgName)
 			exitCode = 1
 			return
 		}
@@ -1306,6 +1325,12 @@ func compilePackage() {
 			return
 		}
 
+		if !bpmlib.EvaluatePackageString(bpmpkg.PkgInfo, d) {
+			log.Printf("Error: could not evaluate package: %s\n", sourcePackage)
+			exitCode = 1
+			return
+		}
+
 		// Get common, make and check dependencies
 		totalDepends := make([]string, 0)
 		totalDepends = append(totalDepends, bpmpkg.PkgInfo.Depends...)
@@ -1332,6 +1357,19 @@ func compilePackage() {
 
 		// Install missing source package dependencies
 		if installSrcPkgDepends && len(unmetDepends) > 0 {
+			// Ignore packages that can't be found in any databases
+			if force {
+				unmetDepends = slices.DeleteFunc(unmetDepends, func(s string) bool {
+					// Deconstruct package string
+					d, err := bpmlib.DeconstructPackageString(s)
+					if err != nil {
+						return false
+					}
+
+					return bpmlib.ResolveDatabaseEntry(d, rootDir) == nil
+				})
+			}
+
 			// Get path to current executable
 			executable, err := os.Executable()
 			if err != nil {
@@ -1460,7 +1498,7 @@ func compilePackage() {
 			return
 		}
 
-		outputBpmPackages, err := bpmlib.CompileSourcePackage(sourcePackage, outputDirectory, compilationJobs, skipChecks, keepCompilationFiles, verbose)
+		outputBpmPackages, err := bpmlib.CompileSourcePackage(sourcePackage, outputDirectory, d.Flags, compilationJobs, skipChecks, keepCompilationFiles, verbose)
 		if err != nil {
 			// Remove unused packages
 			cleanupFunc()

src/bpmlib/compilation.go

@@ -24,7 +24,7 @@ import (
 var rootCompilationUID = "65534"
 var rootCompilationGID = "65534"
 
-func CompileSourcePackage(archiveFilename, outputDirectory string, compilationJobs int, skipChecks, keepCompilationFiles, verbose bool) (outputBpmPackages map[string]string, err error) {
+func CompileSourcePackage(archiveFilename, outputDirectory string, flags map[string]string, compilationJobs int, skipChecks, keepCompilationFiles, verbose bool) (outputBpmPackages map[string]string, err error) {
 	// Set compilation jobs
 	if compilationJobs <= 0 || compilationJobs > runtime.NumCPU() {
 		compilationJobs = runtime.NumCPU()
@@ -96,8 +96,8 @@ func CompileSourcePackage(archiveFilename, outputDirectory string, compilationJo
 		return nil, err
 	}
 
-	// Extract source.sh file
+	// Extract recipe.sh file
-	err = extractTarballFile(archiveFilename, "source.sh", tempDirectory, uid, gid)
+	err = extractTarballFile(archiveFilename, "recipe.sh", tempDirectory, uid, gid)
 	if err != nil {
 		return nil, err
 	}
@@ -146,6 +146,15 @@ func CompileSourcePackage(archiveFilename, outputDirectory string, compilationJo
 	env = append(env, "BPM_PKG_URL="+bpmpkg.PkgInfo.Url)
 	env = append(env, "BPM_PKG_ARCH="+bpmpkg.PkgInfo.OutputArch)
 	env = append(env, "BPM_JOBS="+strconv.Itoa(compilationJobs))
+	for _, flag := range bpmpkg.PkgInfo.Flags {
+		if value, ok := flags[flag.Name]; ok {
+			env = append(env, "BPM_PKG_FLAG_"+strings.ToUpper(flag.Name)+"="+value)
+			fmt.Printf("Package flag: %s=%s\n", flag.Name, value)
+		} else {
+			env = append(env, "BPM_PKG_FLAG_"+strings.ToUpper(flag.Name)+"="+flag.DefaultValue)
+			fmt.Printf("Package flag: %s=%s\n", flag.Name, flag.DefaultValue)
+		}
+	}
 	env = append(env, CompilationBPMConfig.CompilationEnvironment...)
 
 	// Set common flags used for limiting job count
@@ -166,10 +175,10 @@ func CompileSourcePackage(archiveFilename, outputDirectory string, compilationJo
 	env = append(env, "CMAKE_BUILD_PARALLEL_LEVEL="+strconv.Itoa(compilationJobs))
 	env = append(env, "CARGO_BUILD_JOBS="+strconv.Itoa(compilationJobs))
 
-	// Execute prepare and build functions in source.sh script
+	// Execute prepare and build functions in recipe.sh script
 	cmd := exec.Command("bash", "-c",
-		"set -a\n"+ // Source and export functions and variables in source.sh script
+		"set -a\n"+ // Source and export functions and variables in recipe.sh script
-			". \"${BPM_WORKDIR}\"/source.sh\n"+
+			". \"${BPM_WORKDIR}\"/recipe.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
@@ -187,11 +196,11 @@ func CompileSourcePackage(archiveFilename, outputDirectory string, compilationJo
 		return nil, err
 	}
 
-	// Execute check function in source.sh script if not skipping checks
+	// Execute check function in recipe.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
+			"set -a\n"+ // Source and export functions and variables in recipe.sh script
-				". \"${BPM_WORKDIR}\"/source.sh\n"+
+				". \"${BPM_WORKDIR}\"/recipe.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")
@@ -238,10 +247,10 @@ func CompileSourcePackage(archiveFilename, outputDirectory string, compilationJo
 			packageFunctionName = "package_" + pkg.Name
 		}
 
-		// Execute package function in source.sh script and generate package file list
+		// Execute package function in recipe.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
+			"set -a\n"+ // Source and export functions and variables in recipe.sh script
-				". \"${BPM_WORKDIR}\"/source.sh\n"+
+				". \"${BPM_WORKDIR}\"/recipe.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
@@ -329,7 +338,7 @@ func CompileSourcePackage(archiveFilename, outputDirectory string, compilationJo
 
 		// Generate package file list
 		fmt.Println("Generating package file list...")
-		cmd = exec.Command("bash", "-c", "fakeroot -i \"$BPM_WORKDIR\"/fakeroot_file find \"$BPM_OUTPUT\" -mindepth 1 -printf \"%P %#m %U %G %s\\n\" > \"$BPM_WORKDIR\"/pkg.files")
+		cmd = exec.Command("bash", "-c", "fakeroot -i \"$BPM_WORKDIR\"/fakeroot_file find \"$BPM_OUTPUT\" -mindepth 1 -printf \"%P %#m %U %G %s\\n\" > \"$BPM_WORKDIR\"/files.txt")
 		cmd.Dir = tempDirectory
 		cmd.Stdout = os.Stdout
 		cmd.Stderr = os.Stderr
@@ -345,7 +354,15 @@ func CompileSourcePackage(archiveFilename, outputDirectory string, compilationJo
 
 		// Create gzip-compressed archive for the package files
 		fmt.Println("Generating compressed file archive...")
-		cmd = exec.Command("bash", "-c", fmt.Sprintf("find %s -printf \"%%P\\n\" | fakeroot -i %s/fakeroot_file tar -czf files.tar.gz --no-recursion -C %s -T -", "output_"+pkg.Name, tempDirectory, "output_"+pkg.Name))
+		cmd = exec.Command("bash", "-c", fmt.Sprintf(`find %s -printf "%%P\n" | fakeroot -i %s/fakeroot_file tar czf files.tar.gz \
+			--sort=name \
+			--pax-option=exthdr.name=%%d/PaxHeaders/%%f,delete=atime,delete=ctime \
+			--mtime="UTC 1970-01-01" \
+			--numeric-owner \
+			--no-recursion \
+			-C %s \
+			-T -`,
+			"output_"+pkg.Name, tempDirectory, "output_"+pkg.Name))
 		cmd.Dir = tempDirectory
 		cmd.Stdout = os.Stdout
 		cmd.Stderr = os.Stderr
@@ -373,6 +390,31 @@ func CompileSourcePackage(archiveFilename, outputDirectory string, compilationJo
 		pkgInfo.SplitPackages = nil
 		pkgInfo.Downloads = nil
 
+		// Set built flag values and add their dependencies
+		for i, flag := range pkgInfo.Flags {
+			if value, ok := flags[flag.Name]; ok {
+				flag.BuiltValue = value
+			} else {
+				flag.BuiltValue = flag.DefaultValue
+			}
+
+			acceptedValueIndex := slices.IndexFunc(flag.AcceptedValues, func(acceptedValue PackageAcceptedValue) bool {
+				return acceptedValue.Value == flag.BuiltValue
+			})
+			if acceptedValueIndex < 0 {
+				return nil, fmt.Errorf("flag value not accepted: %s=%s", flag.Name, flag.BuiltValue)
+			}
+			acceptedValue := flag.AcceptedValues[acceptedValueIndex]
+
+			pkgInfo.Flags[i] = flag
+
+			pkgInfo.Depends = append(pkgInfo.Depends, acceptedValue.Depends...)
+			pkgInfo.RuntimeDepends = append(pkgInfo.RuntimeDepends, acceptedValue.RuntimeDepends...)
+			pkgInfo.OptionalDepends = append(pkgInfo.OptionalDepends, acceptedValue.OptionalDepends...)
+			pkgInfo.MakeDepends = append(pkgInfo.MakeDepends, acceptedValue.MakeDepends...)
+			pkgInfo.CheckDepends = append(pkgInfo.CheckDepends, acceptedValue.CheckDepends...)
+		}
+
 		// Marshal package info
 		pkgInfoBytes, err := yaml.Marshal(pkgInfo)
 		if err != nil {
@@ -380,26 +422,31 @@ func CompileSourcePackage(archiveFilename, outputDirectory string, compilationJo
 		}
 		pkgInfoBytes = append(pkgInfoBytes, '\n')
 
-		// Create pkg.info file
+		// Create info.yml file
-		err = os.WriteFile(path.Join(tempDirectory, "pkg.info"), pkgInfoBytes, 0644)
+		err = os.WriteFile(path.Join(tempDirectory, "info.yml"), pkgInfoBytes, 0644)
 		if err != nil {
 			return nil, err
 		}
 
-		// Change pkg.info file owner
+		// Change info.yml file owner
-		err = os.Chown(path.Join(tempDirectory, "pkg.info"), uid, gid)
+		err = os.Chown(path.Join(tempDirectory, "info.yml"), 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, "info.yml", "files.txt", "files.tar.gz") // Base files
 		bpmArchiveFiles = append(bpmArchiveFiles, packageScripts...)                       // Package scripts
 
 		// Create final BPM archive
 		fmt.Println("Generating final BPM archive...")
-		cmd = exec.Command("bash", "-c", "tar -cf final-archive.bpm --owner=0 --group=0 -C \"$BPM_WORKDIR\" "+strings.Join(bpmArchiveFiles, " "))
+		cmd = exec.Command("tar", "cf", "final-archive.bpm",
+			"--sort=name",
+			"--pax-option=exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime",
+			"--mtime=UTC 1970-01-01",
+			"--owner=0", "--group=0", "--numeric-owner")
+		cmd.Args = append(cmd.Args, bpmArchiveFiles...)
 		cmd.Dir = tempDirectory
 		cmd.Stdout = os.Stdout
 		cmd.Stderr = os.Stderr
@@ -417,8 +464,8 @@ func CompileSourcePackage(archiveFilename, outputDirectory string, compilationJo
 			return nil, fmt.Errorf("BPM archive could not be created: %s", err)
 		}
 
-		// Remove pkg.info file
+		// Remove info.yml file
-		err = os.Remove(path.Join(tempDirectory, "pkg.info"))
+		err = os.Remove(path.Join(tempDirectory, "info.yml"))
 		if err != nil {
 			return nil, err
 		}
@@ -725,8 +772,8 @@ func showPackageFiles(archiveFilename string) error {
 		return nil
 	}
 
-	// Print pkg.info content
+	// Print info.yml content
-	err = printTarballContent("pkg.info")
+	err = printTarballContent("info.yml")
 	if err != nil {
 		return err
 	}
@@ -748,8 +795,8 @@ func showPackageFiles(archiveFilename string) error {
 		}
 	}
 
-	// Print source.sh content
+	// Print recipe.sh content
-	err = printTarballContent("source.sh")
+	err = printTarballContent("recipe.sh")
 	if err != nil {
 		return err
 	}

src/bpmlib/databases.go

@@ -42,7 +42,7 @@ type BPMDatabaseEntry struct {
 	Database      *BPMDatabase
 }
 
-var BPMDatabases = make(map[string]*BPMDatabase)
+var BPMDatabases = make([]*BPMDatabase, 0)
 
 func (db *BPMDatabase) ContainsPackage(pkg string) bool {
 	_, ok := db.Entries[pkg]
@@ -135,7 +135,7 @@ func (db *configDatabase) ReadLocalDatabase() error {
 		}
 	}
 
-	BPMDatabases[db.Name] = database
+	BPMDatabases = append(BPMDatabases, database)
 
 	return nil
 }
@@ -207,33 +207,85 @@ func ReadLocalDatabaseFiles() (err error) {
 	return nil
 }
 
-func GetDatabaseEntry(str string) (*BPMDatabaseEntry, *BPMDatabase, error) {
+func ResolveDatabaseEntry(d DeconstructedPackageString, rootDir string) *BPMDatabaseEntry {
-	split := strings.Split(str, "/")
+	results := SearchDatabaseEntries(d.PkgName)
+	for _, result := range results {
+
+		if EvaluatePackageString(result.Info, d) {
+			return result
+		}
+	}
+
+	installedProviders := GetVirtualPackageInfo(d.PkgName, rootDir)
+	for _, provider := range installedProviders {
+		results := SearchDatabaseEntries(provider.Name)
+		for _, result := range results {
+			if EvaluatePackageString(result.Info, d) {
+				return result
+			}
+		}
+	}
+
+	databaseProviders := SearchDatabaseVirtualPackageProviders(d.PkgName)
+	for _, provider := range databaseProviders {
+		results := SearchDatabaseEntries(provider.Info.Name)
+		for _, result := range results {
+			if EvaluatePackageString(result.Info, d) {
+				return result
+			}
+		}
+	}
+
+	return nil
+}
+
+func SearchDatabaseEntries(pkg string) (results []*BPMDatabaseEntry) {
+	split := strings.Split(pkg, "/")
 	if len(split) == 1 {
 		pkgName := strings.TrimSpace(split[0])
 		if pkgName == "" {
-			return nil, nil, errors.New("could not find database entry for this package")
+			return results
 		}
 		for _, db := range BPMDatabases {
 			if db.ContainsPackage(pkgName) {
-				return db.Entries[pkgName], db, nil
+				results = append(results, db.Entries[pkgName])
 			}
 		}
-		return nil, nil, errors.New("could not find database entry for this package")
+		return results
 	} 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")
+			return results
 		}
-		db := BPMDatabases[dbName]
+		dbIndex := slices.IndexFunc(BPMDatabases, func(db *BPMDatabase) bool {
-		if db == nil || !db.ContainsPackage(pkgName) {
+			return db.Name == dbName
-			return nil, nil, errors.New("could not find database entry for this package")
+		})
+		if dbIndex < 0 {
+			return results
 		}
-		return db.Entries[pkgName], db, nil
+
-	} else {
+		db := BPMDatabases[dbIndex]
-		return nil, nil, errors.New("could not find database entry for this package")
+		if !db.ContainsPackage(pkgName) {
+			return results
 		}
+
+		results = append(results, db.Entries[pkgName])
+	}
+
+	return results
+}
+
+func SearchDatabaseVirtualPackageProviders(vpkg string) (providers []*BPMDatabaseEntry) {
+	for _, db := range BPMDatabases {
+		providers = append(providers, db.VirtualPackages[vpkg]...)
+	}
+
+	slices.SortFunc(providers, func(a, b *BPMDatabaseEntry) int {
+		return strings.Compare(a.Info.Name, b.Info.Name)
+	})
+
+	return providers
 }
 
 func FindReplacement(pkg string) *BPMDatabaseEntry {
@@ -250,18 +302,6 @@ func FindReplacement(pkg string) *BPMDatabaseEntry {
 	return nil
 }
 
-func GetDatabaseVirtualPackageEntry(vpkg string) (providers []*BPMDatabaseEntry) {
-	for _, db := range BPMDatabases {
-		providers = append(providers, db.VirtualPackages[vpkg]...)
-	}
-
-	slices.SortFunc(providers, func(a, b *BPMDatabaseEntry) int {
-		return strings.Compare(a.Info.Name, b.Info.Name)
-	})
-
-	return providers
-}
-
 func (db *BPMDatabase) FetchPackage(pkg string) (string, error) {
 	// Check if package exists in database
 	if !db.ContainsPackage(pkg) {
@@ -311,8 +351,12 @@ func (entry *BPMDatabaseEntry) GetEntryDependants() (dependants []string) {
 
 			// Add installed package to list if its dependencies include pkgName
 			if slices.ContainsFunc(e.Info.Depends, func(n string) bool {
-				n, _, _ = SplitPkgNameAndVersion(n)
+				d, err := DeconstructPackageString(n)
-				return n == entry.Info.Name
+				if err != nil {
+					return false
+				}
+
+				return d.PkgName == entry.Info.Name
 			}) {
 				dependantsMap[e.Info.Name] = append(dependantsMap[e.Info.Name], db.Name)
 				continue
@@ -320,8 +364,12 @@ func (entry *BPMDatabaseEntry) GetEntryDependants() (dependants []string) {
 
 			// Add installed package to list if its runtime dependencies include pkgName
 			if slices.ContainsFunc(e.Info.RuntimeDepends, func(n string) bool {
-				n, _, _ = SplitPkgNameAndVersion(n)
+				d, err := DeconstructPackageString(n)
-				return n == entry.Info.Name
+				if err != nil {
+					return false
+				}
+
+				return d.PkgName == entry.Info.Name
 			}) {
 				dependantsMap[e.Info.Name] = append(dependantsMap[e.Info.Name], db.Name)
 				continue
@@ -331,8 +379,12 @@ func (entry *BPMDatabaseEntry) GetEntryDependants() (dependants []string) {
 			for _, vpkg := range entry.Info.Provides {
 				// Add installed package to list if its dependencies contain a provided virtual package
 				if slices.ContainsFunc(e.Info.Depends, func(n string) bool {
-					n, _, _ = SplitPkgNameAndVersion(n)
+					d, err := DeconstructPackageString(n)
-					return n == vpkg
+					if err != nil {
+						return false
+					}
+
+					return d.PkgName == vpkg
 				}) {
 					dependantsMap[e.Info.Name] = append(dependantsMap[e.Info.Name], db.Name)
 					break
@@ -340,8 +392,12 @@ func (entry *BPMDatabaseEntry) GetEntryDependants() (dependants []string) {
 
 				// Add installed package to list if its runtime dependencies contain a provided virtual package
 				if slices.ContainsFunc(e.Info.RuntimeDepends, func(n string) bool {
-					n, _, _ = SplitPkgNameAndVersion(n)
+					d, err := DeconstructPackageString(n)
-					return n == vpkg
+					if err != nil {
+						return false
+					}
+
+					return d.PkgName == vpkg
 				}) {
 					dependantsMap[e.Info.Name] = append(dependantsMap[e.Info.Name], db.Name)
 					break
@@ -374,13 +430,13 @@ func (entry *BPMDatabaseEntry) GetEntryOptionalDependants() (dependants []string
 	for _, db := range BPMDatabases {
 		for _, e := range db.Entries {
 			if slices.ContainsFunc(e.Info.OptionalDepends, func(n string) bool {
-				// Remove optional dependency comment
+				// Deconstruct package string
-				n = strings.SplitN(n, ":", 2)[0]
+				d, err := DeconstructPackageString(n)
+				if err != nil {
+					return false
+				}
 
-				// Remove required version
+				return d.PkgName == entry.Info.Name
-				n, _, _ = SplitPkgNameAndVersion(n)
-
-				return n == entry.Info.Name
 			}) {
 				dependantsMap[e.Info.Name] = append(dependantsMap[e.Info.Name], e.Database.Name)
 			}
@@ -411,8 +467,13 @@ func (entry *BPMDatabaseEntry) GetEntryMakeDependants() (dependants []string) {
 	for _, db := range BPMDatabases {
 		for _, e := range db.Entries {
 			if slices.ContainsFunc(e.Info.MakeDepends, func(n string) bool {
-				n, _, _ = SplitPkgNameAndVersion(n)
+				// Deconstruct package string
-				return n == entry.Info.Name
+				d, err := DeconstructPackageString(n)
+				if err != nil {
+					return false
+				}
+
+				return d.PkgName == entry.Info.Name
 			}) {
 				dependantsMap[e.Info.Name] = append(dependantsMap[e.Info.Name], e.Database.Name)
 			}
@@ -473,7 +534,7 @@ func (entry *BPMDatabaseEntry) CreateReadableInfo(rootDir string, showBytes bool
 			builder.WriteString("  - " + val)
 
 			// Show virtual package providers
-			if providers := GetDatabaseVirtualPackageEntry(val); len(providers) > 0 {
+			if providers := SearchDatabaseVirtualPackageProviders(val); len(providers) > 0 {
 				builder.WriteString(" (")
 				for i, vpkg := range providers {
 					if i == len(providers)-1 {
@@ -503,6 +564,64 @@ func (entry *BPMDatabaseEntry) CreateReadableInfo(rootDir string, showBytes bool
 	}
 	builder.WriteString("Type: " + entry.Info.Type + "\n")
 
+	// Flags
+	if entry.Info.Type == "binary" {
+		var flags []string
+		for _, flag := range entry.Info.Flags {
+			flags = append(flags, fmt.Sprintf("%s=%s", flag.Name, flag.BuiltValue))
+		}
+		builderWriteArray("Built with flags:", flags, false)
+	} else {
+		if len(entry.Info.Flags) > 0 {
+			builder.WriteString("Available flags (")
+			builder.WriteString(strconv.Itoa(len(entry.Info.Flags)))
+			builder.WriteString("):\n")
+			for _, flag := range entry.Info.Flags {
+				builder.WriteString("  - Flag: ")
+				builder.WriteString(flag.Name)
+				builder.WriteRune('\n')
+				if flag.DefaultValue != "" {
+					builder.WriteString("    Default value: ")
+					builder.WriteString(flag.DefaultValue)
+					builder.WriteRune('\n')
+				}
+				if len(flag.AcceptedValues) > 0 {
+					builder.WriteString("    Accepted values (")
+					builder.WriteString(strconv.Itoa(len(flag.AcceptedValues)))
+					builder.WriteString("):\n")
+
+					for i, acceptedValue := range flag.AcceptedValues {
+						writeValueDepends := func(text string, depends []string) {
+							if len(depends) > 0 {
+								builder.WriteString("        ")
+								builder.WriteString(text)
+								builder.WriteString(" (")
+								builder.WriteString(strconv.Itoa(len(depends)))
+								builder.WriteString("): ")
+								for _, depend := range depends {
+									if i != 0 {
+										builder.WriteString(", ")
+									}
+									builder.WriteString(depend)
+								}
+								builder.WriteRune('\n')
+							}
+						}
+
+						builder.WriteString("      - Value: ")
+						builder.WriteString(acceptedValue.Value)
+						builder.WriteRune('\n')
+						writeValueDepends("Dependencies", acceptedValue.Depends)
+						writeValueDepends("Make Dependencies", acceptedValue.MakeDepends)
+						writeValueDepends("Check Dependencies", acceptedValue.CheckDepends)
+						writeValueDepends("Runtime Dependencies", acceptedValue.RuntimeDepends)
+						writeValueDepends("Optional Dependencies", acceptedValue.OptionalDepends)
+					}
+				}
+			}
+		}
+	}
+
 	// Dependencies
 	builderWriteDependencyArray("Dependencies", entry.Info.Depends)
 	if entry.Info.Type == "source" {
@@ -521,7 +640,7 @@ func (entry *BPMDatabaseEntry) CreateReadableInfo(rootDir string, showBytes bool
 			}
 
 			// Show virtual package providers
-			if providers := GetDatabaseVirtualPackageEntry(dependSplit[0]); len(providers) > 0 {
+			if providers := SearchDatabaseVirtualPackageProviders(dependSplit[0]); len(providers) > 0 {
 				builder.WriteString(" (")
 				for i, vpkg := range providers {
 					if i == len(providers)-1 {

src/bpmlib/dependencies.go

@@ -1,6 +1,8 @@
 package bpmlib
 
 import (
+	"fmt"
+	"maps"
 	"slices"
 	"strings"
 )
@@ -21,8 +23,13 @@ func (pkgInfo *PackageInfo) GetPackageDependants(rootDir string, skipMultiplePro
 
 		// Add installed package to list if its dependencies include pkgName
 		if slices.ContainsFunc(installedPkg.Depends, func(n string) bool {
-			n, _, _ = SplitPkgNameAndVersion(n)
+			// Deconstruct package string
-			return n == pkgInfo.Name
+			d, err := DeconstructPackageString(n)
+			if err != nil {
+				return false
+			}
+
+			return d.PkgName == pkgInfo.Name
 		}) {
 			dependants = append(dependants, installedPkg.Name)
 			continue
@@ -30,8 +37,13 @@ func (pkgInfo *PackageInfo) GetPackageDependants(rootDir string, skipMultiplePro
 
 		// Add installed package to list if its runtime dependencies include pkgName
 		if slices.ContainsFunc(installedPkg.RuntimeDepends, func(n string) bool {
-			n, _, _ = SplitPkgNameAndVersion(n)
+			// Deconstruct package string
-			return n == pkgInfo.Name
+			d, err := DeconstructPackageString(n)
+			if err != nil {
+				return false
+			}
+
+			return d.PkgName == pkgInfo.Name
 		}) {
 			dependants = append(dependants, installedPkg.Name)
 			continue
@@ -45,8 +57,13 @@ func (pkgInfo *PackageInfo) GetPackageDependants(rootDir string, skipMultiplePro
 
 			// Add installed package to list if its dependencies contain a provided virtual package
 			if slices.ContainsFunc(installedPkg.Depends, func(n string) bool {
-				n, _, _ = SplitPkgNameAndVersion(n)
+				// Deconstruct package string
-				return n == vpkg
+				d, err := DeconstructPackageString(n)
+				if err != nil {
+					return false
+				}
+
+				return d.PkgName == vpkg
 			}) {
 				dependants = append(dependants, installedPkg.Name)
 				break
@@ -54,8 +71,13 @@ func (pkgInfo *PackageInfo) GetPackageDependants(rootDir string, skipMultiplePro
 
 			// Add installed package to list if its runtime dependencies contain a provided virtual package
 			if slices.ContainsFunc(installedPkg.RuntimeDepends, func(n string) bool {
-				n, _, _ = SplitPkgNameAndVersion(n)
+				// Deconstruct package string
-				return n == vpkg
+				d, err := DeconstructPackageString(n)
+				if err != nil {
+					return false
+				}
+
+				return d.PkgName == vpkg
 			}) {
 				dependants = append(dependants, installedPkg.Name)
 				break
@@ -82,13 +104,13 @@ func (pkgInfo *PackageInfo) GetPackageOptionalDependants(rootDir string) (depend
 
 		// Add installed package to list if its optional dependencies include pkgName
 		if slices.ContainsFunc(installedPkg.OptionalDepends, func(n string) bool {
-			// Remove optional dependency comment
+			// Deconstruct package string
-			n = strings.SplitN(n, ":", 2)[0]
+			d, err := DeconstructPackageString(n)
+			if err != nil {
+				return false
+			}
 
-			// Remove required version
+			return d.PkgName == pkgInfo.Name
-			n, _, _ = SplitPkgNameAndVersion(n)
-
-			return n == pkgInfo.Name
 		}) {
 			dependants = append(dependants, installedPkg.Name)
 			continue
@@ -98,13 +120,13 @@ func (pkgInfo *PackageInfo) GetPackageOptionalDependants(rootDir string) (depend
 		for _, vpkg := range pkgInfo.Provides {
 			// Add installed package to list if its optional dependencies contain a provided virtual package
 			if slices.ContainsFunc(installedPkg.OptionalDepends, func(n string) bool {
-				// Remove optional dependency comment
+				// Deconstruct package string
-				n = strings.SplitN(n, ":", 2)[0]
+				d, err := DeconstructPackageString(n)
+				if err != nil {
+					return false
+				}
 
-				// Remove required version
+				return d.PkgName == vpkg
-				n, _, _ = SplitPkgNameAndVersion(n)
-
-				return n == vpkg
 			}) {
 				dependants = append(dependants, installedPkg.Name)
 				break
@@ -117,55 +139,85 @@ func (pkgInfo *PackageInfo) GetPackageOptionalDependants(rootDir string) (depend
 
 type ResolvedPackage struct {
 	DatabaseEntry      *BPMDatabaseEntry
+	Flags              map[string]string
 	InstallationReason InstallationReason
 }
 
-func ResolveDependencies(pkgInfo *PackageInfo, resolvedVirtualPackages map[string]string, includeRuntimeDepends bool, rootDir string) (resolved []ResolvedPackage, unresolved []string) {
+func ResolveDependencies(pkgInfo *PackageInfo, flags, resolvedVirtualPackages map[string]string, includeRuntimeDepends bool, rootDir string) (resolved []ResolvedPackage, unresolved map[string]string) {
+	unresolved = make(map[string]string)
 	visited := make([]string, 0)
 
-	var dfs func(resolvedPkg *PackageInfo)
+	var dfs func(resolvedPkg *PackageInfo, flags map[string]string)
-	dfs = func(pkgInfo *PackageInfo) {
+	dfs = func(pkgInfo *PackageInfo, flags map[string]string) {
 		checkDependencies := func(dependencies []string, installationReason InstallationReason) {
 			for _, depend := range dependencies {
-				// Split dependency name and required version
+				// Deconstruct package string
-				dependName, _, _ := SplitPkgNameAndVersion(depend)
+				d, err := DeconstructPackageString(depend)
+				if err != nil {
+					unresolved[depend] = "could not deconstruct package string: " + err.Error()
+					continue
+				}
 
-				// Ignore if package is already installed
+				// Check resolved virtual packages
-				if IsPackageInstalled(dependName, rootDir) && EvaluateDependency(depend, GetPackageInfo(dependName, rootDir).Version) {
+				if resolvedPkg, ok := resolvedVirtualPackages[d.PkgName]; ok {
-					continue
+					d.PkgName = resolvedPkg
-				} else if providers := GetVirtualPackageInfo(dependName, rootDir); len(providers) > 0 {
-					continue
 				}
 
 				// Find database entry for dependency
-				var dependEntry *BPMDatabaseEntry
+				dependEntry := ResolveDatabaseEntry(d, rootDir)
-				if resolvedVpkg, ok := resolvedVirtualPackages[dependName]; ok {
-					dependEntry, _, _ = GetDatabaseEntry(resolvedVpkg)
-				} else if entry, _, _ := GetDatabaseEntry(dependName); entry != nil {
-					dependEntry = entry
-				} else if providers := GetDatabaseVirtualPackageEntry(dependName); len(providers) > 0 {
-					dependEntry = providers[0]
-				}
-
 				if dependEntry == nil {
-					unresolved = append(unresolved, depend)
+					unresolved[depend] = "could not find in any database"
-					continue
-				}
-
-				// Ensure entry has required version
-				if !EvaluateDependency(depend, dependEntry.Info.Version) {
-					unresolved = append(unresolved, depend)
 					continue
 				}
+				d.PkgName = dependEntry.Info.Name
 
 				// Skip ignored packages in config
-				if slices.Contains(MainBPMConfig.IgnorePackages, dependEntry.Info.Name) {
+				if rootDir == "/" && slices.Contains(MainBPMConfig.IgnorePackages, dependEntry.Info.Name) {
 					continue
 				}
 
+				// Add user defined package flags and resolve entry again if package is already installed
+				if installedInfo := GetPackageInfo(dependEntry.Info.Name, rootDir); installedInfo != nil {
+					d.Flags, err = CombineFlags(getPackageLocalInfo(dependEntry.Info.Name, rootDir).Flags, d.Flags)
+					if err != nil {
+						unresolved[depend] = "could not combine flags: " + err.Error()
+						continue
+					}
+
+					dependEntry = ResolveDatabaseEntry(d, rootDir)
+					if dependEntry == nil {
+						unresolved[depend] = "could not find in any database"
+						continue
+					}
+
+					shouldIgnore := true
+
+					// Skip if no update/downgrade is available
+					if installedInfo.GetFullVersion() != dependEntry.Info.GetFullVersion() {
+						shouldIgnore = false
+					}
+
+					// Skip if no new package flags
+					if !maps.Equal(getPackageLocalInfo(dependEntry.Info.Name, rootDir).Flags, d.Flags) {
+						shouldIgnore = false
+					}
+
+					if shouldIgnore {
+						continue
+					}
+				}
+
+				// Resolve virtual packages
+				for _, vpkg := range dependEntry.Info.Provides {
+					if _, ok := resolvedVirtualPackages[vpkg]; !ok {
+						resolvedVirtualPackages[vpkg] = dependEntry.Info.Name
+					}
+				}
+
+				// Resolve entry dependencies
 				if !slices.Contains(visited, dependEntry.Info.Name) {
-					dfs(dependEntry.Info)
+					dfs(dependEntry.Info, d.Flags)
-					resolved = append(resolved, ResolvedPackage{DatabaseEntry: dependEntry, InstallationReason: installationReason})
+					resolved = append(resolved, ResolvedPackage{DatabaseEntry: dependEntry, Flags: d.Flags, InstallationReason: installationReason})
 				}
 			}
 		}
@@ -179,69 +231,196 @@ func ResolveDependencies(pkgInfo *PackageInfo, resolvedVirtualPackages map[strin
 		if pkgInfo.Type == "source" {
 			checkDependencies(pkgInfo.MakeDepends, InstallationReasonMakeDependency)
 			checkDependencies(pkgInfo.CheckDepends, InstallationReasonMakeDependency)
+
+			// Resolve flag-specific dependencies
+			for _, flag := range pkgInfo.Flags {
+				acceptedValueIndex := slices.IndexFunc(flag.AcceptedValues, func(acceptedValue PackageAcceptedValue) bool {
+					if value, ok := flags[flag.Name]; ok {
+						return acceptedValue.Value == value
+					} else {
+						return acceptedValue.Value == flag.DefaultValue
+					}
+				})
+				if acceptedValueIndex < 0 {
+					continue
+				}
+				acceptedValue := flag.AcceptedValues[acceptedValueIndex]
+
+				checkDependencies(acceptedValue.Depends, InstallationReasonDependency)
+				checkDependencies(acceptedValue.RuntimeDepends, InstallationReasonDependency)
+				checkDependencies(acceptedValue.MakeDepends, InstallationReasonMakeDependency)
+				checkDependencies(acceptedValue.CheckDepends, InstallationReasonMakeDependency)
+			}
 		}
 	}
 
-	dfs(pkgInfo)
+	dfs(pkgInfo, flags)
 
 	return resolved, unresolved
 }
 
-func SplitPkgNameAndVersion(pkg string) (string, string, string) {
+type DeconstructedPackageString struct {
-	if strings.Contains(pkg, ">=") {
+	PkgName                 string
-		pkgSplit := strings.SplitN(pkg, ">=", 2)
+	Description             string
-		pkgName := pkgSplit[0]
+	Flags                   map[string]string
-		pkgVersion := pkgSplit[1]
+	RequiredVersionOperator string
-
+	RequiredVersion         string
-		return pkgName, ">=", pkgVersion
-	} else if strings.Contains(pkg, ">") {
-		pkgSplit := strings.SplitN(pkg, ">", 2)
-		pkgName := pkgSplit[0]
-		pkgVersion := pkgSplit[1]
-
-		return pkgName, ">", pkgVersion
-	} else if strings.Contains(pkg, "<=") {
-		pkgSplit := strings.SplitN(pkg, "<=", 2)
-		pkgName := pkgSplit[0]
-		pkgVersion := pkgSplit[1]
-
-		return pkgName, "<=", pkgVersion
-	} else if strings.Contains(pkg, "<") {
-		pkgSplit := strings.SplitN(pkg, "<", 2)
-		pkgName := pkgSplit[0]
-		pkgVersion := pkgSplit[1]
-
-		return pkgName, "<", pkgVersion
-	} else if strings.Contains(pkg, "=") {
-		pkgSplit := strings.SplitN(pkg, "=", 2)
-		pkgName := pkgSplit[0]
-		pkgVersion := pkgSplit[1]
-
-		return pkgName, "=", pkgVersion
 }
 
-	return pkg, "", ""
+func DeconstructPackageString(pkg string) (ret DeconstructedPackageString, err error) {
+	// Initialize values
+	ret.Flags = make(map[string]string)
+
+	// Get dependency description
+	if i := strings.IndexRune(pkg, ':'); i > 0 {
+		ret.Description = pkg[i+1:]
+		pkg = pkg[0:i]
 	}
 
-func EvaluateDependency(pkg, matchVersion string) bool {
+	if left := strings.IndexRune(pkg, '['); left > 0 {
-	_, comparisonSymbol, pkgVersion := SplitPkgNameAndVersion(pkg)
+		if right := strings.IndexRune(pkg, ']'); right > left {
+			flagsStr := pkg[left+1 : right]
+			pkg = pkg[0:left] + pkg[right+1:]
 
-	switch comparisonSymbol {
+			if flagsStr != "" {
-	case ">=":
+				for flag := range strings.SplitSeq(flagsStr, ",") {
-		return CompareVersions(matchVersion, pkgVersion) >= 0
+					flagSplit := strings.SplitN(flag, "=", 2)
-	case ">":
+					if len(flagSplit) != 2 {
-		return CompareVersions(matchVersion, pkgVersion) > 0
+						return ret, fmt.Errorf("could not parse flag: %s", flag)
-	case "<=":
+					}
-		return CompareVersions(matchVersion, pkgVersion) <= 0
+
-	case "<":
+					ret.Flags[flagSplit[0]] = flagSplit[1]
-		return CompareVersions(matchVersion, pkgVersion) < 0
+				}
-	case "=":
+			}
-		if cutPkgVersion, ok := strings.CutSuffix(pkgVersion, "*"); ok {
-			return strings.HasPrefix(matchVersion, cutPkgVersion)
 		} else {
-			return CompareVersions(matchVersion, pkgVersion) == 0
+			return ret, fmt.Errorf("could not find closing square bracket for set flags")
+		}
+	}
+
+	if strings.Contains(pkg, ">=") {
+		ret.RequiredVersionOperator = ">="
+	} else if strings.Contains(pkg, ">") {
+		ret.RequiredVersionOperator = ">"
+	} else if strings.Contains(pkg, "<=") {
+		ret.RequiredVersionOperator = "<="
+	} else if strings.Contains(pkg, "<") {
+		ret.RequiredVersionOperator = "<"
+	} else if strings.Contains(pkg, "=") {
+		ret.RequiredVersionOperator = "="
+	}
+	if ret.RequiredVersionOperator != "" {
+		pkgSplit := strings.SplitN(pkg, ret.RequiredVersionOperator, 2)
+		if len(pkgSplit) != 2 {
+			return ret, fmt.Errorf("could not parse required version: %s", pkg)
+		}
+		pkg = pkgSplit[0]
+		ret.RequiredVersion = pkgSplit[1]
+	}
+
+	ret.PkgName = pkg
+
+	return ret, nil
+}
+
+func EvaluatePackageString(pkgInfo *PackageInfo, match DeconstructedPackageString) bool {
+	// Validate flags
+	for flag, value := range match.Flags {
+		pkgFlagIndex := slices.IndexFunc(pkgInfo.Flags, func(f PackageFlag) bool {
+			return f.Name == flag
+		})
+		if pkgFlagIndex < 0 {
+			return false
+		}
+		pkgFlag := pkgInfo.Flags[pkgFlagIndex]
+
+		if pkgInfo.Type == "binary" {
+			if pkgFlag.BuiltValue != value {
+				return false
+			}
+		}
+
+		if len(pkgFlag.AcceptedValues) == 0 {
+			continue
+		}
+
+		if !slices.ContainsFunc(pkgFlag.AcceptedValues, func(acceptedFlag PackageAcceptedValue) bool {
+			return acceptedFlag.Value == value
+		}) {
+			return false
+		}
+	}
+
+	// Validate version
+	switch match.RequiredVersionOperator {
+	case ">=":
+		return CompareVersions(match.RequiredVersion, pkgInfo.Version) >= 0
+	case ">":
+		return CompareVersions(match.RequiredVersion, pkgInfo.Version) > 0
+	case "<=":
+		return CompareVersions(match.RequiredVersion, pkgInfo.Version) <= 0
+	case "<":
+		return CompareVersions(match.RequiredVersion, pkgInfo.Version) < 0
+	case "=":
+		if cutPkgVersion, ok := strings.CutSuffix(match.RequiredVersion, "*"); ok {
+			return strings.HasPrefix(pkgInfo.Version, cutPkgVersion)
+		} else {
+			return CompareVersions(pkgInfo.Version, match.RequiredVersion) == 0
 		}
 	default:
 		return true
 	}
 }
+
+func GetBuiltFlags(pkg, rootDir string) map[string]string {
+	builtFlags := make(map[string]string)
+
+	pkgInfo := GetPackageInfo(pkg, rootDir)
+	if pkgInfo == nil {
+		return nil
+	}
+
+	for _, flag := range pkgInfo.Flags {
+		builtFlags[flag.Name] = flag.BuiltValue
+	}
+
+	return builtFlags
+}
+
+func RemoveInvalidFlags(pkgInfo *PackageInfo, userFlags map[string]string) (ret map[string]string) {
+	ret = make(map[string]string)
+
+	for userFlag, userValue := range userFlags {
+		flagIndex := slices.IndexFunc(pkgInfo.Flags, func(flag PackageFlag) bool {
+			return flag.Name == userFlag
+		})
+		if flagIndex < 0 {
+			continue
+		}
+		flag := pkgInfo.Flags[flagIndex]
+
+		if len(flag.AcceptedValues) > 0 && !slices.ContainsFunc(flag.AcceptedValues, func(acceptedValue PackageAcceptedValue) bool {
+			return acceptedValue.Value == userValue
+		}) {
+			continue
+		}
+
+		ret[userFlag] = userValue
+	}
+
+	return ret
+}
+
+func CombineFlags(flags, newFlags map[string]string) (map[string]string, error) {
+	ret := make(map[string]string)
+	maps.Copy(ret, flags)
+
+	for flag, value := range newFlags {
+		if oldValue, ok := flags[flag]; ok && value != oldValue {
+			return ret, fmt.Errorf("flag already defined: %s=%s/%s", flag, oldValue, value)
+		}
+
+		ret[flag] = value
+	}
+
+	return ret, nil
+}

src/bpmlib/errors.go

@@ -2,26 +2,25 @@ package bpmlib
 
 import (
 	"fmt"
+	"maps"
 	"slices"
 	"strings"
 )
 
-type PackageNotFoundErr struct {
+type PackageNotResolvedErr struct {
-	packages []string
+	packages map[string]string
 }
 
-func (e PackageNotFoundErr) Error() string {
+func (e PackageNotResolvedErr) Error() (ret string) {
-	slices.Sort(e.packages)
+	ret = "The following packages could not be resolved:"
-	return "The following packages were not found in any databases: " + strings.Join(e.packages, ", ")
+
+	keys := slices.Collect(maps.Keys(e.packages))
+	slices.Sort(keys)
+	for _, key := range keys {
+		ret += "\n  " + key + ": " + e.packages[key]
 	}
 
-type DependencyNotFoundErr struct {
+	return ret
-	dependencies []string
-}
-
-func (e DependencyNotFoundErr) Error() string {
-	slices.Sort(e.dependencies)
-	return "The following dependencies were not found in any databases: " + strings.Join(e.dependencies, ", ")
 }
 
 type PackageConflictErr struct {

src/bpmlib/general.go

@@ -16,7 +16,7 @@ func InstallPackages(rootDir string, forceInstallationReason InstallationReason,
 	// Setup operation struct
 	operation = &BPMOperation{
 		Actions:           make([]OperationAction, 0),
-		UnresolvedDepends: make([]string, 0),
+		UnresolvedDepends: make(map[string]string, 0),
 		ModifiedFiles:     make(map[string]string),
 		RunChecks:         runChecks,
 		RootDir:           rootDir,
@@ -27,20 +27,58 @@ func InstallPackages(rootDir string, forceInstallationReason InstallationReason,
 	packages = removeDuplicates(packages)
 
 	// Resolve packages
-	pkgsNotFound := make([]string, 0)
+	unresolvedPackages := make(map[string]string)
+	resolvedVirtualPackages := make(map[string]string)
 	for _, pkg := range packages {
-		if stat, err := os.Stat(pkg); err == nil && !stat.IsDir() {
+		d, err := DeconstructPackageString(pkg)
-			bpmpkg, err := ReadPackage(pkg)
+		if err != nil {
+			return nil, fmt.Errorf("could not deconstruct package string: %s", err)
+		}
+
+		if stat, err := os.Stat(d.PkgName); err == nil && !stat.IsDir() {
+			bpmpkg, err := ReadPackage(d.PkgName)
 			if err != nil {
 				return nil, fmt.Errorf("could not read package: %s", err)
 			}
 
-			if bpmpkg.PkgInfo.Type == "source" && bpmpkg.PkgInfo.IsSplitPackage() {
+			// Add user defined package flags
+			if !reinstallPackages && IsPackageInstalled(bpmpkg.PkgInfo.Name, rootDir) {
+				d.Flags, err = CombineFlags(getPackageLocalInfo(bpmpkg.PkgInfo.Name, rootDir).Flags, d.Flags)
+				if err != nil {
+					return nil, fmt.Errorf("could not combine flags for package (%s): %s", bpmpkg.PkgInfo.Name, err)
+				}
+			}
+
+			if !EvaluatePackageString(bpmpkg.PkgInfo, d) {
+				unresolvedPackages[pkg] = "could not evaluate package"
+				continue
+			}
+
+			if bpmpkg.PkgInfo.IsSplitPackage() {
 				for _, splitPkg := range bpmpkg.PkgInfo.SplitPackages {
 					if !reinstallPackages && IsPackageInstalled(splitPkg.Name, rootDir) && GetPackageInfo(splitPkg.Name, rootDir).GetFullVersion() == splitPkg.GetFullVersion() {
 						continue
 					}
 
+					// Check if installation can be ignored
+					if !reinstallPackages && IsPackageInstalled(splitPkg.Name, rootDir) {
+						shouldIgnore := true
+
+						// Skip if no update/downgrade is available
+						if GetPackageInfo(splitPkg.Name, rootDir).GetFullVersion() != splitPkg.GetFullVersion() {
+							shouldIgnore = false
+						}
+
+						// Skip if no new package flags
+						if !maps.Equal(getPackageLocalInfo(splitPkg.Name, rootDir).Flags, d.Flags) {
+							shouldIgnore = false
+						}
+
+						if shouldIgnore {
+							continue
+						}
+					}
+
 					// Set package installation reason
 					installationReason := forceInstallationReason
 					if installationReason == InstallationReasonUnknown {
@@ -51,9 +89,17 @@ func InstallPackages(rootDir string, forceInstallationReason InstallationReason,
 						}
 					}
 
-					operation.AppendAction(&InstallPackageAction{
+					// Resolve virtual packages
+					for _, vpkg := range splitPkg.Provides {
+						if _, ok := resolvedVirtualPackages[vpkg]; !ok {
+							resolvedVirtualPackages[vpkg] = splitPkg.Name
+						}
+					}
+
+					operation.Actions = append(operation.Actions, &InstallPackageAction{
 						File:                  pkg,
 						InstallationReason:    installationReason,
+						Flags:                 d.Flags,
 						BpmPackage:            bpmpkg,
 						SplitPackageToInstall: splitPkg.Name,
 					})
@@ -61,9 +107,24 @@ func InstallPackages(rootDir string, forceInstallationReason InstallationReason,
 				continue
 			}
 
-			if !reinstallPackages && IsPackageInstalled(bpmpkg.PkgInfo.Name, rootDir) && GetPackageInfo(bpmpkg.PkgInfo.Name, rootDir).GetFullVersion() == bpmpkg.PkgInfo.GetFullVersion() {
+			// Check if installation can be ignored
+			if !reinstallPackages && IsPackageInstalled(bpmpkg.PkgInfo.Name, rootDir) {
+				shouldIgnore := true
+
+				// Skip if no update/downgrade is available
+				if GetPackageInfo(bpmpkg.PkgInfo.Name, rootDir).GetFullVersion() != bpmpkg.PkgInfo.GetFullVersion() {
+					shouldIgnore = false
+				}
+
+				// Skip if no new package flags
+				if !maps.Equal(getPackageLocalInfo(bpmpkg.PkgInfo.Name, rootDir).Flags, d.Flags) {
+					shouldIgnore = false
+				}
+
+				if shouldIgnore {
 					continue
 				}
+			}
 
 			// Set package installation reason
 			installationReason := forceInstallationReason
@@ -75,40 +136,65 @@ func InstallPackages(rootDir string, forceInstallationReason InstallationReason,
 				}
 			}
 
-			operation.AppendAction(&InstallPackageAction{
+			// Resolve virtual packages
+			for _, vpkg := range bpmpkg.PkgInfo.Provides {
+				if _, ok := resolvedVirtualPackages[vpkg]; !ok {
+					resolvedVirtualPackages[vpkg] = bpmpkg.PkgInfo.Name
+				}
+			}
+
+			operation.Actions = append(operation.Actions, &InstallPackageAction{
 				File:               pkg,
 				InstallationReason: installationReason,
+				Flags:              d.Flags,
 				BpmPackage:         bpmpkg,
 			})
 		} else {
-			// Split package name and required version
+			// Check resolved virtual packages
-			pkgName, _, _ := SplitPkgNameAndVersion(pkg)
+			if resolvedPkg, ok := resolvedVirtualPackages[d.PkgName]; ok {
+				d.PkgName = resolvedPkg
+			}
 
-			var entry *BPMDatabaseEntry
+			entry := ResolveDatabaseEntry(d, rootDir)
+			if entry == nil {
+				unresolvedPackages[pkg] = "could not find in any database"
+				continue
+			}
 
-			if e, _, err := GetDatabaseEntry(pkgName); err == nil {
+			pkgInfo := GetPackageInfo(entry.Info.Name, rootDir)
-				entry = e
+
-			} else if providers := GetVirtualPackageInfo(pkgName, rootDir); len(providers) > 0 {
+			// Add user defined package flags and resolve entry again if package is already installed
-				entry, _, err = GetDatabaseEntry(providers[0].Name)
+			if !reinstallPackages && pkgInfo != nil {
+				d.Flags, err = CombineFlags(getPackageLocalInfo(entry.Info.Name, rootDir).Flags, d.Flags)
 				if err != nil {
-					pkgsNotFound = append(pkgsNotFound, pkg)
+					return nil, fmt.Errorf("could not combine flags for package (%s): %s", entry.Info.Name, err)
-					continue
-				}
-			} else if providers := GetDatabaseVirtualPackageEntry(pkgName); len(providers) > 0 {
-				entry = providers[0]
-			} else {
-				pkgsNotFound = append(pkgsNotFound, pkg)
-				continue
 				}
 
-			if !EvaluateDependency(pkg, entry.Info.Version) {
+				entry = ResolveDatabaseEntry(d, rootDir)
-				pkgsNotFound = append(pkgsNotFound, pkg)
+				if entry == nil {
+					unresolvedPackages[pkg] = "could not find in any database"
 					continue
 				}
+			}
 
-			if !reinstallPackages && IsPackageInstalled(entry.Info.Name, rootDir) && GetPackageInfo(entry.Info.Name, rootDir).GetFullVersion() == entry.Info.GetFullVersion() {
+			// Check if installation can be ignored
+			if !reinstallPackages && pkgInfo != nil {
+				shouldIgnore := true
+
+				// Skip if no update/downgrade is available
+				if GetPackageInfo(entry.Info.Name, rootDir).GetFullVersion() != entry.Info.GetFullVersion() {
+					shouldIgnore = false
+				}
+
+				// Skip if no new package flags
+				if !maps.Equal(getPackageLocalInfo(entry.Info.Name, rootDir).Flags, d.Flags) {
+					shouldIgnore = false
+				}
+
+				if shouldIgnore {
 					continue
 				}
+			}
 
 			// Set package installation reason
 			installationReason := forceInstallationReason
@@ -120,25 +206,33 @@ func InstallPackages(rootDir string, forceInstallationReason InstallationReason,
 				}
 			}
 
-			operation.AppendAction(&FetchPackageAction{
+			// Resolve virtual packages
+			for _, vpkg := range entry.Info.Provides {
+				if _, ok := resolvedVirtualPackages[vpkg]; !ok {
+					resolvedVirtualPackages[vpkg] = entry.Info.Name
+				}
+			}
+
+			operation.Actions = append(operation.Actions, &FetchPackageAction{
 				InstallationReason: installationReason,
+				Flags:              d.Flags,
 				DatabaseEntry:      entry,
 			})
 		}
 	}
 
 	// Return error if not all packages are found
-	if len(pkgsNotFound) != 0 {
+	if len(unresolvedPackages) != 0 {
-		return nil, PackageNotFoundErr{pkgsNotFound}
+		return nil, PackageNotResolvedErr{unresolvedPackages}
 	}
 
 	// Resolve dependencies
 	operation.ResolveDependencies(installRuntimeDependencies)
 	if len(operation.UnresolvedDepends) != 0 {
 		if !forceInstallation {
-			return nil, DependencyNotFoundErr{operation.UnresolvedDepends}
+			return nil, PackageNotResolvedErr{operation.UnresolvedDepends}
 		} else if verbose {
-			log.Printf("Warning: %s", DependencyNotFoundErr{operation.UnresolvedDepends})
+			log.Printf("Warning: %s", PackageNotResolvedErr{operation.UnresolvedDepends})
 		}
 	}
 
@@ -188,7 +282,7 @@ func InstallPackages(rootDir string, forceInstallationReason InstallationReason,
 func RemovePackages(rootDir string, force, cleanupDependencies bool, packages ...string) (operation *BPMOperation, err error) {
 	operation = &BPMOperation{
 		Actions:           make([]OperationAction, 0),
-		UnresolvedDepends: make([]string, 0),
+		UnresolvedDepends: make(map[string]string),
 		ModifiedFiles:     make(map[string]string),
 		RootDir:           rootDir,
 		compiledPackages:  make(map[string]string),
@@ -206,7 +300,7 @@ func RemovePackages(rootDir string, force, cleanupDependencies bool, packages ..
 		if bpmpkg == nil {
 			continue
 		}
-		operation.AppendAction(&RemovePackageAction{BpmPackage: bpmpkg})
+		operation.Actions = append(operation.Actions, &RemovePackageAction{BpmPackage: bpmpkg})
 	}
 
 	// Do package cleanup
@@ -223,7 +317,7 @@ func RemovePackages(rootDir string, force, cleanupDependencies bool, packages ..
 		packageDepndants := make(map[string][]string, 0)
 		for _, action := range operation.Actions {
 			// Skip package if ignored in config
-			if slices.Contains(MainBPMConfig.IgnorePackages, action.(*RemovePackageAction).BpmPackage.PkgInfo.Name) {
+			if rootDir == "/" && slices.Contains(MainBPMConfig.IgnorePackages, action.(*RemovePackageAction).BpmPackage.PkgInfo.Name) {
 				continue
 			}
 
@@ -243,7 +337,7 @@ func RemovePackages(rootDir string, force, cleanupDependencies bool, packages ..
 		// Remove dependant packages if ignored
 		for pkg, required := range packageDepndants {
 			required = slices.DeleteFunc(required, func(pkgName string) bool {
-				return slices.Contains(MainBPMConfig.IgnorePackages, pkgName)
+				return rootDir == "/" && slices.Contains(MainBPMConfig.IgnorePackages, pkgName)
 			})
 			packageDepndants[pkg] = required
 		}
@@ -266,7 +360,7 @@ func RemovePackages(rootDir string, force, cleanupDependencies bool, packages ..
 func CleanupPackages(cleanupMakeDepends bool, rootDir string) (operation *BPMOperation, err error) {
 	operation = &BPMOperation{
 		Actions:           make([]OperationAction, 0),
-		UnresolvedDepends: make([]string, 0),
+		UnresolvedDepends: make(map[string]string),
 		ModifiedFiles:     make(map[string]string),
 		RootDir:           rootDir,
 		compiledPackages:  make(map[string]string),
@@ -394,7 +488,7 @@ func UpdatePackages(rootDir string, syncDatabase, allowDowngrades, forceInstalla
 
 	operation = &BPMOperation{
 		Actions:           make([]OperationAction, 0),
-		UnresolvedDepends: make([]string, 0),
+		UnresolvedDepends: make(map[string]string),
 		ModifiedFiles:     make(map[string]string),
 		RunChecks:         runChecks,
 		RootDir:           rootDir,
@@ -402,125 +496,57 @@ func UpdatePackages(rootDir string, syncDatabase, allowDowngrades, forceInstalla
 	}
 
 	// Search for packages
-	pkgsNotFound := make([]string, 0)
+	resolvedVirtualPackages := make(map[string]string)
 	for _, pkg := range pkgs {
-		if slices.Contains(MainBPMConfig.IgnorePackages, pkg) {
+		if rootDir == "/" && slices.Contains(MainBPMConfig.IgnorePackages, pkg) {
 			continue
 		}
+
+		// Get installed package built flags
+		flags := getPackageLocalInfo(pkg, rootDir).Flags
+
 		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 {
+		} else if entry = ResolveDatabaseEntry(DeconstructedPackageString{PkgName: pkg, Flags: flags}, rootDir); entry == nil {
 			continue
 		}
 
-		installedInfo := GetPackageInfo(pkg, rootDir)
+		// Remove invalid flags
-		if installedInfo == nil {
+		flags = RemoveInvalidFlags(entry.Info, flags)
+
+		if installedInfo := GetPackageInfo(pkg, rootDir); installedInfo == nil {
 			return nil, fmt.Errorf("could not get package info for package (%s)", pkg)
 		} else {
 			comparison := CompareVersions(entry.Info.GetFullVersion(), installedInfo.GetFullVersion())
 			if (!allowDowngrades && comparison > 0) || (allowDowngrades && comparison != 0) {
-				operation.AppendAction(&FetchPackageAction{
+				// Resolve virtual packages
-					InstallationReason: GetPackage(pkg, rootDir).LocalInfo.GetInstallationReason(),
+				for _, vpkg := range entry.Info.Provides {
+					if _, ok := resolvedVirtualPackages[vpkg]; !ok {
+						resolvedVirtualPackages[vpkg] = entry.Info.Name
+					}
+				}
+
+				bpmpkg := GetPackage(pkg, rootDir)
+
+				operation.Actions = append(operation.Actions, &FetchPackageAction{
+					InstallationReason: bpmpkg.LocalInfo.GetInstallationReason(),
+					Flags:              flags,
 					DatabaseEntry:      entry,
 				})
 			}
-
-			// Check for missing dependencies
-			for _, depend := range entry.Info.Depends {
-				// Split package name and required version
-				dependName, _, _ := SplitPkgNameAndVersion(depend)
-
-				if IsPackageInstalled(dependName, rootDir) && EvaluateDependency(depend, GetPackageInfo(dependName, rootDir).Version) {
-					continue
-				}
-				if len(GetVirtualPackageInfo(dependName, rootDir)) > 0 {
-					continue
-				}
-
-				// Find database entry for missing dependency
-				dependEntry, _, err := GetDatabaseEntry(dependName)
-				if err != nil {
-					providers := GetDatabaseVirtualPackageEntry(dependName)
-					if len(providers) == 0 {
-						pkgsNotFound = append(pkgsNotFound, depend)
-						continue
-					}
-
-					dependEntry = providers[0]
-				}
-
-				// Skip dependency if action already exists
-				if operation.ActionsContainPackage(dependEntry.Info.Name) {
-					continue
-				}
-
-				// Skip dependency if ignored in config
-				if slices.Contains(MainBPMConfig.IgnorePackages, dependEntry.Info.Name) {
-					continue
-				}
-
-				// Ensure entry has required version
-				if !EvaluateDependency(depend, dependEntry.Info.Version) {
-					pkgsNotFound = append(pkgsNotFound, depend)
-					continue
-				}
-
-				// Fetch dependency
-				operation.AppendAction(&FetchPackageAction{
-					InstallationReason: InstallationReasonDependency,
-					DatabaseEntry:      dependEntry,
-				})
-			}
-
-			// Check for missing runtime dependencies
-			for _, depend := range entry.Info.RuntimeDepends {
-				// Split package name and required version
-				dependName, _, _ := SplitPkgNameAndVersion(depend)
-
-				if IsPackageInstalled(dependName, rootDir) && EvaluateDependency(depend, GetPackageInfo(dependName, rootDir).Version) {
-					continue
-				}
-				if len(GetVirtualPackageInfo(dependName, rootDir)) > 0 {
-					continue
-				}
-
-				// Find database entry for missing dependency
-				dependEntry, _, err := GetDatabaseEntry(dependName)
-				if err != nil {
-					providers := GetDatabaseVirtualPackageEntry(dependName)
-					if len(providers) == 0 {
-						pkgsNotFound = append(pkgsNotFound, depend)
-						continue
-					}
-
-					dependEntry = providers[0]
-				}
-
-				// Skip dependency if ignored in config
-				if slices.Contains(MainBPMConfig.IgnorePackages, dependEntry.Info.Name) {
-					continue
-				}
-
-				// Ensure entry has required version
-				if !EvaluateDependency(depend, dependEntry.Info.Version) {
-					pkgsNotFound = append(pkgsNotFound, depend)
-					continue
-				}
-
-				// Fetch dependency
-				operation.AppendAction(&FetchPackageAction{
-					InstallationReason: InstallationReasonDependency,
-					DatabaseEntry:      dependEntry,
-				})
-			}
 		}
 	}
 
-	// Return error if not all packages are found
+	// Resolve dependencies
-	if len(pkgsNotFound) != 0 {
+	operation.ResolveDependencies(true)
-		return nil, PackageNotFoundErr{pkgsNotFound}
+	if len(operation.UnresolvedDepends) != 0 {
+		if !forceInstallation {
+			return nil, PackageNotResolvedErr{operation.UnresolvedDepends}
+		} else if verbose {
+			log.Printf("Warning: %s", PackageNotResolvedErr{operation.UnresolvedDepends})
+		}
 	}
 
 	// Replace obsolete packages

src/bpmlib/installed_packages.go

@@ -63,7 +63,7 @@ func InitializeLocalPackageInformation(rootDir string) (err error) {
 		}
 
 		// Read package info
-		infoData, err := os.ReadFile(path.Join(installedDir, item.Name(), "info"))
+		infoData, err := os.ReadFile(path.Join(installedDir, item.Name(), "info.yml"))
 		if err != nil {
 			return err
 		}
@@ -220,7 +220,7 @@ 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")
+	files := path.Join(pkgDir, "files.txt")
 	if _, err := os.Stat(installedDir); os.IsNotExist(err) {
 		return nil
 	}
@@ -280,7 +280,7 @@ func getPackageLocalInfo(pkg, rootDir string) PackageLocalInfo {
 
 	installedDir := path.Join(rootDir, "var/lib/bpm/installed/")
 	pkgDir := path.Join(installedDir, pkg)
-	localInfoFile := path.Join(path.Join(pkgDir, "local"))
+	localInfoFile := path.Join(path.Join(pkgDir, "local.yml"))
 
 	if _, err := os.Stat(localInfoFile); os.IsNotExist(err) {
 		return localInfo
@@ -304,7 +304,7 @@ func SetPackageLocalInfo(pkg string, localInfo PackageLocalInfo, rootDir string)
 	installedDir := path.Join(rootDir, "var/lib/bpm/installed/")
 	pkgDir := path.Join(installedDir, pkg)
 
-	localFile, err := os.OpenFile(path.Join(pkgDir, "local"), os.O_WRONLY|os.O_CREATE, 0644)
+	localFile, err := os.OpenFile(path.Join(pkgDir, "local.yml"), os.O_WRONLY|os.O_CREATE, 0644)
 	if err != nil {
 		return err
 	}
@@ -332,10 +332,35 @@ func UpgradePersistentData(rootDir string) error {
 		for _, entry := range dirEntries {
 			pkgDir := path.Join(persistentDataDir, "installed", entry.Name())
 
-			// Generate default local package information file
+			// Rename 'info' file to 'info.yml'
-			if _, err := os.Stat(path.Join(pkgDir, "local")); err != nil && !os.IsNotExist(err) {
+			if _, err := os.Stat(path.Join(pkgDir, "info")); err == nil {
+				fmt.Printf("Moving 'info' to 'info.yml' for package (%s)\n", entry.Name())
+				err := os.Rename(path.Join(pkgDir, "info"), path.Join(pkgDir, "info.yml"))
+				if err != nil {
 					return err
-			} else if os.IsNotExist(err) {
+				}
+			}
+
+			// Rename 'files' file to 'files.txt'
+			if _, err := os.Stat(path.Join(pkgDir, "files")); err == nil {
+				fmt.Printf("Moving 'files' to 'files.txt' for package (%s)\n", entry.Name())
+				err := os.Rename(path.Join(pkgDir, "files"), path.Join(pkgDir, "files.txt"))
+				if err != nil {
+					return err
+				}
+			}
+
+			// Rename 'local' file to 'local.yml'
+			if _, err := os.Stat(path.Join(pkgDir, "local")); err == nil {
+				fmt.Printf("Moving 'local' to 'local.yml' for package (%s)\n", entry.Name())
+				err := os.Rename(path.Join(pkgDir, "local"), path.Join(pkgDir, "local.yml"))
+				if err != nil {
+					return err
+				}
+			}
+
+			// Generate default local package information file
+			if _, err := os.Stat(path.Join(pkgDir, "local.yml")); os.IsNotExist(err) {
 				fmt.Printf("Generating local package information for package (%s)\n", entry.Name())
 
 				out, err := yaml.Marshal(PackageLocalInfo{
@@ -347,10 +372,12 @@ func UpgradePersistentData(rootDir string) error {
 					return err
 				}
 
-				err = os.WriteFile(path.Join(pkgDir, "local"), out, 0644)
+				err = os.WriteFile(path.Join(pkgDir, "local.yml"), out, 0644)
 				if err != nil {
 					return err
 				}
+			} else if err != nil {
+				return err
 			}
 
 			// Move installation reason to local package information file
@@ -359,7 +386,7 @@ func UpgradePersistentData(rootDir string) error {
 			} else if err == nil {
 				fmt.Printf("Moving installation reason to local package information for package (%s)\n", entry.Name())
 
-				data, err := os.ReadFile(path.Join(pkgDir, "local"))
+				data, err := os.ReadFile(path.Join(pkgDir, "local.yml"))
 				if err != nil {
 					return err
 				}
@@ -377,7 +404,7 @@ func UpgradePersistentData(rootDir string) error {
 					return err
 				}
 
-				err = os.WriteFile(path.Join(pkgDir, "local"), out, 0644)
+				err = os.WriteFile(path.Join(pkgDir, "local.yml"), out, 0644)
 				if err != nil {
 					return err
 				}

src/bpmlib/operations.go

@@ -4,6 +4,7 @@ import (
 	"errors"
 	"fmt"
 	"log"
+	"maps"
 	"os"
 	"path"
 	"slices"
@@ -13,7 +14,7 @@ import (
 
 type BPMOperation struct {
 	Actions           []OperationAction
-	UnresolvedDepends []string
+	UnresolvedDepends map[string]string
 	ModifiedFiles     map[string]string
 	CompilationJobs   int
 	RunChecks         bool
@@ -23,54 +24,6 @@ type BPMOperation struct {
 	hasFetchedPackages bool
 }
 
-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
-	}
-}
-
-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() int64 {
 	var ret int64 = 0
 	for _, action := range operation.Actions {
@@ -136,31 +89,35 @@ func (operation *BPMOperation) ResolveDependencies(installRuntimeDepends bool) {
 	}
 
 	// Discover all dependencies
-	pos := 0
+	newActions := make([]OperationAction, 0)
-	for _, value := range slices.Clone(operation.Actions) {
+	for _, value := range operation.Actions {
 		var pkgInfo *PackageInfo
+		var flags map[string]string
 		if value.GetActionType() == "install" {
 			action := value.(*InstallPackageAction)
 			pkgInfo = action.BpmPackage.PkgInfo
+			flags = action.Flags
 		} else if value.GetActionType() == "fetch" {
 			action := value.(*FetchPackageAction)
 			pkgInfo = action.DatabaseEntry.Info
+			flags = action.Flags
 		} else {
 			continue
 		}
 
-		resolved, unresolved := ResolveDependencies(pkgInfo, resolvedVirtualPackages, installRuntimeDepends, operation.RootDir)
+		resolved, unresolved := ResolveDependencies(pkgInfo, flags, resolvedVirtualPackages, installRuntimeDepends, operation.RootDir)
 
-		// Append unresolved dependencies
+		// Copy unresolved dependencies
-		operation.UnresolvedDepends = append(operation.UnresolvedDepends, unresolved...)
+		maps.Copy(operation.UnresolvedDepends, unresolved)
-		operation.UnresolvedDepends = removeDuplicates(operation.UnresolvedDepends)
 
 		for _, resolvedPkg := range resolved {
-			if !operation.ActionsContainPackage(resolvedPkg.DatabaseEntry.Info.Name) && resolvedPkg.DatabaseEntry.Info.Name != pkgInfo.Name {
+			if ActionSliceIndex(newActions, resolvedPkg.DatabaseEntry.Info.Name) == -1 { // Dependency not in actions slice
-				operation.InsertActionAt(pos, &FetchPackageAction{
+				var action OperationAction = &FetchPackageAction{
 					InstallationReason: resolvedPkg.InstallationReason,
+					Flags:              resolvedPkg.Flags,
 					DatabaseEntry:      resolvedPkg.DatabaseEntry,
-				})
+				}
+				newActions = append(newActions, action)
 
 				for _, vpkg := range resolvedPkg.DatabaseEntry.Info.Provides {
 					if _, ok := resolvedVirtualPackages[vpkg]; !ok {
@@ -168,14 +125,21 @@ func (operation *BPMOperation) ResolveDependencies(installRuntimeDepends bool) {
 					}
 				}
 
-				pos++
+				// Check if can move original action
+				if i := ActionSliceIndex(operation.Actions, resolvedPkg.DatabaseEntry.Info.Name); i != -1 {
+					newActions[len(newActions)-1] = operation.Actions[i]
+				}
 			}
 		}
 
-		pos++
+		if ActionSliceIndex(newActions, pkgInfo.Name) == -1 {
+			newActions = append(newActions, value)
 		}
 	}
 
+	operation.Actions = newActions
+}
+
 func (operation *BPMOperation) Cleanup(cleanupMakeDepends bool) error {
 	// Get all installed packages
 	installedPackageNames, err := GetInstalledPackages(operation.RootDir)
@@ -232,15 +196,18 @@ func (operation *BPMOperation) Cleanup(cleanupMakeDepends bool) error {
 
 			// Loop through all dependencies
 			for _, depend := range depends {
-				// Remove required version
+				// Deconstruct package string
-				depend, _, _ = SplitPkgNameAndVersion(depend)
+				d, err := DeconstructPackageString(depend)
+				if err != nil {
+					return fmt.Errorf("could not deconstruct package string: %s", err)
+				}
 
 				// Resolve dependency
 				var dependPkgInfo *PackageInfo
-				if providers := GetVirtualPackageInfo(depend, operation.RootDir); len(providers) > 0 {
+				if providers := GetVirtualPackageInfo(d.PkgName, operation.RootDir); len(providers) > 0 {
 					dependPkgInfo = providers[0]
 				} else {
-					dependPkgInfo = GetPackageInfo(depend, operation.RootDir)
+					dependPkgInfo = GetPackageInfo(d.PkgName, operation.RootDir)
 				}
 				if dependPkgInfo == nil {
 					continue
@@ -265,7 +232,7 @@ func (operation *BPMOperation) Cleanup(cleanupMakeDepends bool) error {
 		if !slices.Contains(visited, pkg) {
 			bpmpkg := GetPackage(pkg, operation.RootDir)
 			if bpmpkg == nil {
-				return errors.New("Error: could not find installed package (" + pkg + ")")
+				return fmt.Errorf("could not find installed package (%s)", pkg)
 			}
 			operation.Actions = append(operation.Actions, &RemovePackageAction{BpmPackage: bpmpkg})
 		}
@@ -289,10 +256,11 @@ func (operation *BPMOperation) ReplaceObsoletePackages() {
 		}
 
 		for _, r := range pkgInfo.Replaces {
-			if bpmpkg := GetPackage(r, operation.RootDir); bpmpkg != nil && !operation.ActionsContainPackage(bpmpkg.PkgInfo.Name) {
+			if bpmpkg := GetPackage(r, operation.RootDir); bpmpkg != nil && ActionSliceIndex(operation.Actions, bpmpkg.PkgInfo.Name) == -1 {
-				operation.InsertActionAt(0, &RemovePackageAction{
+				var action OperationAction = &RemovePackageAction{
 					BpmPackage: bpmpkg,
-				})
+				}
+				operation.Actions = slices.Insert(operation.Actions, 0, action)
 			}
 		}
 	}
@@ -397,15 +365,30 @@ func (operation *BPMOperation) ShowOperationSummary() {
 
 	for _, value := range operation.Actions {
 		var pkgInfo *PackageInfo
+		var flagsStr string
 		var installationReason = InstallationReasonUnknown
 		if value.GetActionType() == "install" {
 			installationReason = value.(*InstallPackageAction).InstallationReason
 			pkgInfo = value.(*InstallPackageAction).BpmPackage.PkgInfo
+			if len(value.(*InstallPackageAction).Flags) > 0 {
+				flagsSlice := make([]string, 0)
+				for flag, value := range value.(*InstallPackageAction).Flags {
+					flagsSlice = append(flagsSlice, flag+"="+value)
+				}
+				flagsStr = "[" + strings.Join(flagsSlice, ",") + "]"
+			}
 			if value.(*InstallPackageAction).SplitPackageToInstall != "" {
 				pkgInfo = pkgInfo.GetSplitPackageInfo(value.(*InstallPackageAction).SplitPackageToInstall)
 			}
 		} else if value.GetActionType() == "fetch" {
 			installationReason = value.(*FetchPackageAction).InstallationReason
+			if len(value.(*FetchPackageAction).Flags) > 0 {
+				flagsSlice := make([]string, 0)
+				for flag, value := range value.(*FetchPackageAction).Flags {
+					flagsSlice = append(flagsSlice, flag+"="+value)
+				}
+				flagsStr = "[" + strings.Join(flagsSlice, ",") + "]"
+			}
 			pkgInfo = value.(*FetchPackageAction).DatabaseEntry.Info
 		} else {
 			pkgInfo = value.(*RemovePackageAction).BpmPackage.PkgInfo
@@ -427,15 +410,15 @@ func (operation *BPMOperation) ShowOperationSummary() {
 
 		installedInfo := GetPackageInfo(pkgInfo.Name, operation.RootDir)
 		if installedInfo == nil {
-			fmt.Fprintf(writer, "%s\t%s\t%s\t%s\t%t\n", pkgInfo.Name, pkgInfo.GetFullVersion(), "Install", installationReasonStr, pkgInfo.Type == "source")
+			fmt.Fprintf(writer, "%s\t%s\t%s\t%s\t%t\n", pkgInfo.Name+flagsStr, pkgInfo.GetFullVersion(), "Install", installationReasonStr, pkgInfo.Type == "source")
 		} else {
 			comparison := CompareVersions(pkgInfo.GetFullVersion(), installedInfo.GetFullVersion())
 			if comparison < 0 {
-				fmt.Fprintf(writer, "%s\t%s -> %s\t%s\t%s\t%t\n", pkgInfo.Name, installedInfo.GetFullVersion(), pkgInfo.GetFullVersion(), "Downgrade", installationReasonStr, pkgInfo.Type == "source")
+				fmt.Fprintf(writer, "%s\t%s -> %s\t%s\t%s\t%t\n", pkgInfo.Name+flagsStr, installedInfo.GetFullVersion(), pkgInfo.GetFullVersion(), "Downgrade", installationReasonStr, pkgInfo.Type == "source")
 			} else if comparison > 0 {
-				fmt.Fprintf(writer, "%s\t%s -> %s\t%s\t%s\t%t\n", pkgInfo.Name, installedInfo.GetFullVersion(), pkgInfo.GetFullVersion(), "Upgrade", installationReasonStr, pkgInfo.Type == "source")
+				fmt.Fprintf(writer, "%s\t%s -> %s\t%s\t%s\t%t\n", pkgInfo.Name+flagsStr, installedInfo.GetFullVersion(), pkgInfo.GetFullVersion(), "Upgrade", installationReasonStr, pkgInfo.Type == "source")
 			} else {
-				fmt.Fprintf(writer, "%s\t%s\t%s\t%s\t%t\n", pkgInfo.Name, pkgInfo.GetFullVersion(), "Reinstall", installationReasonStr, pkgInfo.Type == "source")
+				fmt.Fprintf(writer, "%s\t%s\t%s\t%s\t%t\n", pkgInfo.Name+flagsStr, pkgInfo.GetFullVersion(), "Reinstall", installationReasonStr, pkgInfo.Type == "source")
 			}
 		}
 	}
@@ -488,7 +471,7 @@ func (operation *BPMOperation) GetOptionalDependencies() (optionalDepends map[st
 	optionalDepends = make(map[string][]string)
 
 	// Find all optional dependencies
-	for _, value := range slices.Clone(operation.Actions) {
+	for _, value := range operation.Actions {
 		var pkgInfo *PackageInfo
 		if value.GetActionType() == "install" {
 			action := value.(*InstallPackageAction)
@@ -501,32 +484,58 @@ func (operation *BPMOperation) GetOptionalDependencies() (optionalDepends map[st
 		}
 
 		for _, depend := range pkgInfo.OptionalDepends {
-			// Get optional dependency name
+			// Deconstruct package string
-			dependSplit := strings.SplitN(depend, ":", 2)
+			d, err := DeconstructPackageString(depend)
-			dependName, _, _ := SplitPkgNameAndVersion(dependSplit[0])
+			if err != nil {
+				continue
+			}
 
 			// Skip if dependency is already installed
-			if IsPackageInstalled(dependName, operation.RootDir) {
+			if IsPackageInstalled(d.PkgName, operation.RootDir) || len(GetVirtualPackageInfo(d.PkgName, operation.RootDir)) > 0 {
+				continue
+			}
+
+			// Skip if dependency is going to be installed
+			if slices.IndexFunc(operation.Actions, func(action OperationAction) bool {
+				var pkgInfo *PackageInfo
+				if action.GetActionType() == "install" {
+					action := action.(*InstallPackageAction)
+					pkgInfo = action.BpmPackage.PkgInfo
+				} else if action.GetActionType() == "fetch" {
+					action := action.(*FetchPackageAction)
+					pkgInfo = action.DatabaseEntry.Info
+				} else {
+					return false
+				}
+
+				if pkgInfo.Name == d.PkgName {
+					return true
+				} else if slices.Contains(pkgInfo.Provides, d.PkgName) {
+					return true
+				}
+
+				return false
+			}) != -1 {
 				continue
 			}
 
 			// Skip if not a new dependency of the package
 			if installedPkg := GetPackage(pkgInfo.Name, operation.RootDir); installedPkg != nil && slices.ContainsFunc(installedPkg.PkgInfo.OptionalDepends, func(n string) bool {
-				// Remove optional dependency comment
+				// Deconstruct package string
-				n = strings.SplitN(n, ":", 2)[0]
+				d2, err := DeconstructPackageString(depend)
+				if err != nil {
+					return false
+				}
 
-				// Remove required version
+				return d2.PkgName == d.PkgName
-				n, _, _ = SplitPkgNameAndVersion(n)
-
-				return n == dependName
 			}) {
 				continue
 			}
 
-			if len(dependSplit) == 2 {
+			if d.Description != "" {
-				optionalDepends[pkgInfo.Name] = append(optionalDepends[pkgInfo.Name], fmt.Sprintf("%s (%s)", dependSplit[0], dependSplit[1]))
+				optionalDepends[pkgInfo.Name] = append(optionalDepends[pkgInfo.Name], fmt.Sprintf("%s (%s)", d.PkgName, d.Description))
 			} else {
-				optionalDepends[pkgInfo.Name] = append(optionalDepends[pkgInfo.Name], dependName)
+				optionalDepends[pkgInfo.Name] = append(optionalDepends[pkgInfo.Name], d.PkgName)
 			}
 		}
 	}
@@ -663,6 +672,7 @@ func (operation *BPMOperation) FetchPackages() (err error) {
 				operation.Actions[i] = &InstallPackageAction{
 					File:                  fetchedPackages[entry.Filepath],
 					InstallationReason:    action.(*FetchPackageAction).InstallationReason,
+					Flags:                 action.(*FetchPackageAction).Flags,
 					BpmPackage:            bpmpkg,
 					SplitPackageToInstall: entry.Info.Name,
 				}
@@ -670,6 +680,7 @@ func (operation *BPMOperation) FetchPackages() (err error) {
 				operation.Actions[i] = &InstallPackageAction{
 					File:               fetchedPackages[entry.Filepath],
 					InstallationReason: action.(*FetchPackageAction).InstallationReason,
+					Flags:              action.(*FetchPackageAction).Flags,
 					BpmPackage:         bpmpkg,
 				}
 			}
@@ -688,10 +699,16 @@ func (operation *BPMOperation) GetModifiedFiles() {
 			installAction := action.(*InstallPackageAction)
 			isUpgrade := IsPackageInstalled(installAction.BpmPackage.PkgInfo.Name, operation.RootDir)
 
+			if isUpgrade {
+				for _, pkgFile := range installAction.BpmPackage.PkgFiles {
+					operation.ModifiedFiles[pkgFile.Path] = "upgrade"
+				}
+				for _, pkgFile := range GetPackage(installAction.BpmPackage.PkgInfo.Name, operation.RootDir).PkgFiles {
+					operation.ModifiedFiles[pkgFile.Path] = "upgrade"
+				}
+			} else {
 				for _, pkgFile := range installAction.BpmPackage.PkgFiles {
 					operation.ModifiedFiles[pkgFile.Path] = "install"
-				if isUpgrade {
-					operation.ModifiedFiles[pkgFile.Path] = "upgrade"
 				}
 			}
 		}
@@ -744,6 +761,7 @@ func (operation *BPMOperation) Execute(verbose, force bool) (err error) {
 		} else if action.GetActionType() == "install" {
 			value := action.(*InstallPackageAction)
 			fileToInstall := value.File
+			compilationFlags := value.Flags
 			bpmpkg := value.BpmPackage
 			var err error
 
@@ -768,7 +786,7 @@ func (operation *BPMOperation) Execute(verbose, force bool) (err error) {
 
 				// Compile source package if not compiled already
 				if _, ok := operation.compiledPackages[pkgNameToInstall]; !ok {
-					outputBpmPackages, err := CompileSourcePackage(value.File, compiledDir, operation.CompilationJobs, !operation.RunChecks, false, verbose)
+					outputBpmPackages, err := CompileSourcePackage(value.File, compiledDir, compilationFlags, operation.CompilationJobs, !operation.RunChecks, false, verbose)
 					if err != nil {
 						return fmt.Errorf("could not compile source package (%s): %s\n", value.File, err)
 					}
@@ -788,9 +806,9 @@ func (operation *BPMOperation) Execute(verbose, force bool) (err error) {
 			}
 
 			if value.InstallationReason != InstallationReasonManual {
-				err = installPackage(fileToInstall, value.InstallationReason, operation.RootDir, verbose, true)
+				err = installPackage(fileToInstall, value.InstallationReason, value.Flags, operation.RootDir, verbose, true)
 			} else {
-				err = installPackage(fileToInstall, value.InstallationReason, operation.RootDir, verbose, force)
+				err = installPackage(fileToInstall, value.InstallationReason, value.Flags, operation.RootDir, verbose, force)
 			}
 			if err != nil {
 				return fmt.Errorf("could not install package (%s): %s\n", bpmpkg.PkgInfo.Name, err)
@@ -808,6 +826,7 @@ type OperationAction interface {
 type InstallPackageAction struct {
 	File                  string
 	InstallationReason    InstallationReason
+	Flags                 map[string]string
 	SplitPackageToInstall string
 	BpmPackage            *BPMPackage
 }
@@ -818,6 +837,7 @@ func (action *InstallPackageAction) GetActionType() string {
 
 type FetchPackageAction struct {
 	InstallationReason InstallationReason
+	Flags              map[string]string
 	DatabaseEntry      *BPMDatabaseEntry
 }
 
@@ -832,3 +852,41 @@ type RemovePackageAction struct {
 func (action *RemovePackageAction) GetActionType() string {
 	return "remove"
 }
+
+func ActionSliceIndex(actions []OperationAction, pkg string) int {
+	for i, action := range actions {
+		if action.GetActionType() == "install" {
+			if action.(*InstallPackageAction).BpmPackage.PkgInfo.Name == pkg {
+				return i
+			}
+		} else if action.GetActionType() == "fetch" {
+			if action.(*FetchPackageAction).DatabaseEntry.Info.Name == pkg {
+				return i
+			}
+		} else if action.GetActionType() == "remove" {
+			if action.(*RemovePackageAction).BpmPackage.PkgInfo.Name == pkg {
+				return i
+			}
+		}
+	}
+
+	return -1
+}
+
+func ActionSliceRemove(actions []OperationAction, pkg, actionType string) []OperationAction {
+	actions = slices.DeleteFunc(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
+	})
+
+	return actions
+}

src/bpmlib/packages.go

@@ -49,10 +49,27 @@ type PackageInfo struct {
 	Replaces        []string          `yaml:"replaces,omitempty"`
 	Provides        []string          `yaml:"provides,omitempty"`
 	Options         []string          `yaml:"options,omitempty"`
+	Flags           []PackageFlag     `yaml:"flags,omitempty"`
 	Downloads       []PackageDownload `yaml:"downloads,omitempty"`
 	SplitPackages   []*PackageInfo    `yaml:"split_packages,omitempty"`
 }
 
+type PackageFlag struct {
+	Name           string                 `yaml:"name"`
+	DefaultValue   string                 `yaml:"default_value"`
+	BuiltValue     string                 `yaml:"built_value"`
+	AcceptedValues []PackageAcceptedValue `yaml:"accepted_values,omitempty"`
+}
+
+type PackageAcceptedValue struct {
+	Value           string   `yaml:"value"`
+	Depends         []string `yaml:"depends,omitempty"`
+	RuntimeDepends  []string `yaml:"runtime_depends,omitempty"`
+	OptionalDepends []string `yaml:"optional_depends,omitempty"`
+	MakeDepends     []string `yaml:"make_depends,omitempty"`
+	CheckDepends    []string `yaml:"check_depends,omitempty"`
+}
+
 type PackageDownload struct {
 	Url      string `yaml:"url"`
 	Type     string `yaml:"type,omitempty"`
@@ -80,6 +97,7 @@ type PackageFileEntry struct {
 
 type PackageLocalInfo struct {
 	InstallationReason string            `yaml:"installation_reason"`
+	Flags              map[string]string `yaml:"flags"`
 	InstalledOn        int64             `yaml:"installed_on"`
 	LastUpdatedOn      int64             `yaml:"last_updated_on"`
 }
@@ -163,7 +181,7 @@ func GetPackageInfoRaw(filename string) (string, error) {
 		if err != nil {
 			return "", err
 		}
-		if header.Name == "pkg.info" {
+		if header.Name == "info.yml" {
 			bs, _ := io.ReadAll(tr)
 			err := file.Close()
 			if err != nil {
@@ -172,7 +190,7 @@ func GetPackageInfoRaw(filename string) (string, error) {
 			return string(bs), nil
 		}
 	}
-	return "", errors.New("pkg.info not found in archive")
+	return "", errors.New("info.yml not found in archive")
 }
 
 func ReadPackage(filename string) (*BPMPackage, error) {
@@ -198,13 +216,13 @@ func ReadPackage(filename string) (*BPMPackage, error) {
 		if err != nil {
 			return nil, err
 		}
-		if header.Name == "pkg.info" {
+		if header.Name == "info.yml" {
 			bs, _ := io.ReadAll(tr)
 			pkgInfo, err = ReadPackageInfo(string(bs))
 			if err != nil {
 				return nil, err
 			}
-		} else if header.Name == "pkg.files" {
+		} else if header.Name == "files.txt" {
 			bs, _ := io.ReadAll(tr)
 			for _, line := range strings.Split(string(bs), "\n") {
 				if strings.TrimSpace(line) == "" {
@@ -212,7 +230,7 @@ func ReadPackage(filename string) (*BPMPackage, error) {
 				}
 				stringEntry := strings.Split(strings.TrimSpace(line), " ")
 				if len(stringEntry) < 5 {
-					return nil, errors.New("pkg.files is not formatted correctly")
+					return nil, errors.New("files.txt is not formatted correctly")
 				}
 				octalPerms, err := strconv.ParseUint(stringEntry[len(stringEntry)-4], 8, 32)
 				if err != nil {
@@ -242,7 +260,7 @@ func ReadPackage(filename string) (*BPMPackage, error) {
 	}
 
 	if pkgInfo == nil {
-		return nil, errors.New("pkg.info not found in archive")
+		return nil, errors.New("info.yml not found in archive")
 	}
 	return &BPMPackage{
 		PkgInfo:  pkgInfo,
@@ -595,6 +613,70 @@ func (pkgInfo *PackageInfo) CreateReadableInfo(rootDir string) string {
 	}
 	builder.WriteString("Type: " + pkgInfo.Type + "\n")
 
+	// Flags
+	if pkgInfo.Type == "binary" {
+		var flags []string
+		for _, flag := range pkgInfo.Flags {
+			if pkgInfo != GetPackageInfo(pkgInfo.Name, rootDir) {
+				flags = append(flags, fmt.Sprintf("%s=%s", flag.Name, flag.BuiltValue))
+			} else if _, ok := getPackageLocalInfo(pkgInfo.Name, rootDir).Flags[flag.Name]; ok {
+				flags = append(flags, fmt.Sprintf("%s=%s (User defined)", flag.Name, flag.BuiltValue))
+			} else {
+				flags = append(flags, fmt.Sprintf("%s=%s (Default value)", flag.Name, flag.BuiltValue))
+			}
+		}
+		builderWriteArray("Built with flags:", flags, false)
+	} else {
+		if len(pkgInfo.Flags) > 0 {
+			builder.WriteString("Available flags (")
+			builder.WriteString(strconv.Itoa(len(pkgInfo.Flags)))
+			builder.WriteString("):\n")
+			for _, flag := range pkgInfo.Flags {
+				builder.WriteString("  - Flag: ")
+				builder.WriteString(flag.Name)
+				builder.WriteRune('\n')
+				if flag.DefaultValue != "" {
+					builder.WriteString("    Default value: ")
+					builder.WriteString(flag.DefaultValue)
+					builder.WriteRune('\n')
+				}
+				if len(flag.AcceptedValues) > 0 {
+					builder.WriteString("    Accepted values (")
+					builder.WriteString(strconv.Itoa(len(flag.AcceptedValues)))
+					builder.WriteString("):\n")
+
+					for i, acceptedValue := range flag.AcceptedValues {
+						writeValueDepends := func(text string, depends []string) {
+							if len(depends) > 0 {
+								builder.WriteString("        ")
+								builder.WriteString(text)
+								builder.WriteString(" (")
+								builder.WriteString(strconv.Itoa(len(depends)))
+								builder.WriteString("): ")
+								for _, depend := range depends {
+									if i != 0 {
+										builder.WriteString(", ")
+									}
+									builder.WriteString(depend)
+								}
+								builder.WriteRune('\n')
+							}
+						}
+
+						builder.WriteString("      - Value: ")
+						builder.WriteString(acceptedValue.Value)
+						builder.WriteRune('\n')
+						writeValueDepends("Dependencies", acceptedValue.Depends)
+						writeValueDepends("Make Dependencies", acceptedValue.MakeDepends)
+						writeValueDepends("Check Dependencies", acceptedValue.CheckDepends)
+						writeValueDepends("Runtime Dependencies", acceptedValue.RuntimeDepends)
+						writeValueDepends("Optional Dependencies", acceptedValue.OptionalDepends)
+					}
+				}
+			}
+		}
+	}
+
 	// Dependencies
 	builderWriteDependencyArray("Dependencies", pkgInfo.Depends)
 	if pkgInfo.Type == "source" {
@@ -703,7 +785,7 @@ func extractPackage(bpmpkg *BPMPackage, verbose bool, filename, rootDir string)
 			if ok := slices.ContainsFunc(MainBPMConfig.IgnorePaths, func(s string) bool {
 				matched, _ := filepath.Match(s, header.Name)
 				return matched
-			}); ok {
+			}); rootDir == "/" && ok {
 				if verbose {
 					fmt.Printf("Skipping Directory: %s (Path was ignored)\n", extractFilename)
 				}
@@ -741,7 +823,7 @@ func extractPackage(bpmpkg *BPMPackage, verbose bool, filename, rootDir string)
 			if ok := slices.ContainsFunc(MainBPMConfig.IgnorePaths, func(s string) bool {
 				matched, _ := filepath.Match(s, header.Name)
 				return matched
-			}); ok {
+			}); rootDir == "/" && ok {
 				if verbose {
 					fmt.Printf("Skipping File: %s (Path was ignored)\n", extractFilename)
 				}
@@ -809,7 +891,7 @@ func extractPackage(bpmpkg *BPMPackage, verbose bool, filename, rootDir string)
 			if ok := slices.ContainsFunc(MainBPMConfig.IgnorePaths, func(s string) bool {
 				matched, _ := filepath.Match(s, header.Name)
 				return matched
-			}); ok {
+			}); rootDir == "/" && ok {
 				if verbose {
 					fmt.Printf("Skipping Symlink: %s (Path was ignored)\n", extractFilename)
 				}
@@ -835,7 +917,7 @@ func extractPackage(bpmpkg *BPMPackage, verbose bool, filename, rootDir string)
 			if ok := slices.ContainsFunc(MainBPMConfig.IgnorePaths, func(s string) bool {
 				matched, _ := filepath.Match(s, header.Name)
 				return matched
-			}); ok {
+			}); rootDir == "/" && ok {
 				if verbose {
 					fmt.Printf("Skipping Hard Link: %s (Path was ignored)\n", extractFilename)
 				}
@@ -870,7 +952,7 @@ func extractPackage(bpmpkg *BPMPackage, verbose bool, filename, rootDir string)
 	return nil
 }
 
-func installPackage(filename string, installationReason InstallationReason, rootDir string, verbose, force bool) error {
+func installPackage(filename string, installationReason InstallationReason, flags map[string]string, rootDir string, verbose, force bool) error {
 	if _, err := os.Stat(filename); os.IsNotExist(err) {
 		return err
 	}
@@ -930,7 +1012,7 @@ func installPackage(filename string, installationReason InstallationReason, root
 			if ok := slices.ContainsFunc(MainBPMConfig.IgnorePaths, func(s string) bool {
 				matched, _ := filepath.Match(s, entry.Path)
 				return matched
-			}); ok {
+			}); rootDir == "/" && ok {
 				if verbose {
 					fmt.Printf("Skipping path: %s (Path was ignored)\n", finalPath)
 				}
@@ -1034,12 +1116,12 @@ func installPackage(filename string, installationReason InstallationReason, root
 		return err
 	}
 
-	f, err := os.Create(path.Join(pkgDir, "files"))
+	f, err := os.Create(path.Join(pkgDir, "files.txt"))
 	if err != nil {
 		return err
 	}
 
-	tarballFile, err := readTarballFile(filename, "pkg.files")
+	tarballFile, err := readTarballFile(filename, "files.txt")
 	if err != nil {
 		return err
 	}
@@ -1050,7 +1132,7 @@ func installPackage(filename string, installationReason InstallationReason, root
 		return err
 	}
 
-	f, err = os.Create(path.Join(pkgDir, "info"))
+	f, err = os.Create(path.Join(pkgDir, "info.yml"))
 	if err != nil {
 		return err
 	}
@@ -1074,6 +1156,7 @@ func installPackage(filename string, installationReason InstallationReason, root
 	}
 	localInfo.LastUpdatedOn = time.Now().Unix()
 	localInfo.InstallationReason = string(installationReason)
+	localInfo.Flags = flags
 
 	SetPackageLocalInfo(bpmpkg.PkgInfo.Name, localInfo, rootDir)
 
@@ -1183,7 +1266,7 @@ func removePackage(pkg string, verbose bool, rootDir string) error {
 		if ok := slices.ContainsFunc(MainBPMConfig.IgnorePaths, func(s string) bool {
 			matched, _ := filepath.Match(s, entry.Path)
 			return matched
-		}); ok {
+		}); rootDir == "/" && ok {
 			if verbose {
 				fmt.Printf("Skipping path: %s (Path was ignored)\n", finalPath)
 			}