add option to list already installed roles

README.md

@@ -8,7 +8,7 @@
 * [What's the catch?](#whats-the-catch)
     * [only git repos are supported](#only-git-repos-are-supported)
     * [only roles are supported](#only-roles-are-supported)
-    * [only update/install operations are supported](#only-updateinstall-operations-are-supported)
+    * [only list/update/install operations are supported](#only-listupdateinstall-operations-are-supported)
 * [Where to get?](#where-to-get)
     * [Binaries and distro-specific packages](#binaries-and-distro-specific-packages)
     * [Build yourself](#build-yourself)
@@ -37,6 +37,8 @@ Because `ansible-galaxy` is slow, **very** slow. And irrational. And miss some f
 ```
 Usage of agru:
   -c	cleanup temporary files (default true)
+  -i	install missing roles (default true)
+  -l	list installed roles
   -p string
     	path to install roles (default "roles/galaxy/")
   -r string
@@ -69,9 +71,9 @@ does **not** work:
 
 No collections at this moment, at all.
 
-### only update/install operations are supported
+### only list/update/install operations are supported
 
-No list, no role upload to galaxy, no role removal from galaxy.
+No role upload to galaxy, no role removal from galaxy.
 In fact, galaxy API is not used at all, thus no API-related actions are supported
 
 ## Where to get?

cmd/agru/main.go

@@ -12,6 +12,8 @@ var (
 	rolesPath              string
 	requirementsPath       string
 	updateRequirementsFile bool
+	listInstalled          bool
+	installMissing         bool
 	verbose                bool
 	cleanup                bool
 )
@@ -19,6 +21,8 @@ var (
 func main() {
 	flag.StringVar(&requirementsPath, "r", "requirements.yml", "ansible-galaxy requirements file")
 	flag.StringVar(&rolesPath, "p", "roles/galaxy/", "path to install roles")
+	flag.BoolVar(&listInstalled, "l", false, "list installed roles")
+	flag.BoolVar(&installMissing, "i", true, "install missing roles")
 	flag.BoolVar(&updateRequirementsFile, "u", false, "update requirements file if newer versions are available")
 	flag.BoolVar(&cleanup, "c", true, "cleanup temporary files")
 	flag.BoolVar(&verbose, "v", false, "verbose output")
@@ -26,7 +30,7 @@ func main() {
 
 	utils.Verbose = verbose
 
-	utils.Log(fmt.Sprintf("\033[1ma\033[0mnsible-\033[1mg\033[0malaxy \033[1mr\033[0mequirements.yml \033[1mu\033[0mpdater (update=%t cleanup=%t verbose=%t)", updateRequirementsFile, cleanup, verbose))
+	utils.Log(fmt.Sprintf("\033[1ma\033[0mnsible-\033[1mg\033[0malaxy \033[1mr\033[0mequirements.yml \033[1mu\033[0mpdater (list=%t update=%t cleanup=%t verbose=%t)", listInstalled, updateRequirementsFile, cleanup, verbose))
 	utils.Log("parsing", requirementsPath)
 	entries, installOnly := parser.ParseFile(requirementsPath)
 	if updateRequirementsFile {
@@ -34,8 +38,17 @@ func main() {
 		parser.UpdateFile(entries, requirementsPath)
 	}
 
-	utils.Log("installing/updating roles (if any)")
-	parser.InstallMissingRoles(rolesPath, parser.MergeFiles(entries, installOnly), cleanup)
+	if listInstalled {
+		installed := parser.GetInstalledRoles(rolesPath, parser.MergeFiles(entries, installOnly))
+		for _, entry := range installed {
+			fmt.Println("-", entry.GetName()+",", entry.GetInstallInfo(rolesPath).Version)
+		}
+	}
+
+	if installMissing {
+		utils.Log("installing/updating roles (if any)")
+		parser.InstallMissingRoles(rolesPath, parser.MergeFiles(entries, installOnly), cleanup)
+	}
 
 	utils.Log("done")
 }

internal/parser/roles.go

@@ -37,6 +37,18 @@ func InstallMissingRoles(rolesPath string, entries models.File, cleanup bool) {
 	wg.Wait()
 }
 
+// GetInstalledRoles returns all roles that are already installed
+func GetInstalledRoles(rolesPath string, entries models.File) models.File {
+	installed := models.File{}
+	for _, entry := range entries {
+		entry := entry
+		if entry.GetInstallInfo(rolesPath).Version != "" {
+			installed = append(installed, entry)
+		}
+	}
+	return installed
+}
+
 // getNewVersion checks for newer git tag available on the src's remote
 func getNewVersion(src, version string) string {
 	if ignoredVersions[version] {

justfile

@@ -8,6 +8,10 @@ update *flags:
     go mod tidy
     go mod vendor
 
+# install app
+install:
+    go install ./cmd/agru
+
 # run linter
 lint:
     golangci-lint run ./...