Add sync command

app/app.go

@@ -0,0 +1,89 @@
+package app
+
+import (
+	"os"
+
+	"gitlab.com/revalus/grm/commands"
+	"gitlab.com/revalus/grm/config"
+)
+
+const (
+	APP_NAME        = "Git repository manager"
+	APP_DESCRIPTION = "Manage your repository with simple app"
+	VERSION         = "0.1"
+)
+
+type GitRepositoryManager struct {
+	cliArguments  config.CliArguments
+	configuration config.Configuration
+	console       ConsoleOutput
+}
+
+func (g *GitRepositoryManager) Parse(args []string) {
+	co := ConsoleOutput{}
+
+	checkCriticalError := func(err error) {
+		if err != nil {
+			co.ErrorfMsg("%v", err.Error())
+			os.Exit(2)
+		}
+	}
+
+	arguments, err := config.ParseCliArguments(APP_NAME, APP_DESCRIPTION, args)
+	checkCriticalError(err)
+
+	configFileContent, err := getFileContent(arguments.ConfigurationFile)
+	checkCriticalError(err)
+
+	fileExcension, err := getFileExcension(arguments.ConfigurationFile)
+	checkCriticalError(err)
+
+	configuration, err := config.GetRepositoryConfig(configFileContent, fileExcension)
+	checkCriticalError(err)
+	co.Color = arguments.Color
+
+	g.console = co
+	g.cliArguments = arguments
+	g.configuration = configuration
+}
+
+func (g *GitRepositoryManager) Run() {
+	if g.cliArguments.Sync {
+
+		g.console.InfoFMsg("Synchronizing repositories")
+		println()
+		sync := commands.NewSynchronizer(g.configuration.Workspace)
+		g.runCommand(sync)
+		println()
+		g.console.InfoFMsg("All repositories are synced")
+	}
+
+	if g.cliArguments.Version {
+		g.console.InfoFMsg("Current version: %v", VERSION)
+	}
+}
+
+func (g GitRepositoryManager) describeStatus(status commands.CommandStatus) {
+	if status.Error {
+		g.console.ErrorStatusF("Repository \"%v\": an error occurred: %v", status.Name, status.Message)
+		return
+	}
+
+	if status.Changed {
+		g.console.ChangedStatusF("Repository \"%v\": %v", status.Name, status.Message)
+	} else {
+		g.console.UnchangedStatusF("Repository \"%v\": %v", status.Name, status.Message)
+	}
+}
+
+func (g *GitRepositoryManager) runCommand(cmd commands.Command) {
+	statusChan := make(chan commands.CommandStatus)
+
+	for _, repo := range g.configuration.Repositories {
+		go cmd.Command(repo, statusChan)
+	}
+
+	for range g.configuration.Repositories {
+		g.describeStatus(<-statusChan)
+	}
+}