Switch command line options to be similar to docker-compose.

Author: kevinms

README.md

@@ -0,0 +1,6 @@
+
+=== Similar projects
+
+* teamocil
+* tmuxinator
+* tmuxstart

go.mod

@@ -1,4 +1,4 @@
-module tmuxer
+module tmux-compose
 
 go 1.12
 

tmuxer.go renamed to main.go

@@ -78,6 +78,10 @@ func SendLine(target, text string) {
 	run("tmux", "send-keys", "-R", "-t "+target, "Enter")
 }
 
+func KillSession(session string) {
+	run("tmux", "kill-session", "-t "+session)
+}
+
 func coalesce(args ...string) string {
 	for _, s := range args {
 		if s != "" {
@@ -87,31 +91,7 @@ func coalesce(args ...string) string {
 	return ""
 }
 
-func main() {
-	var override string
-	flag.StringVar(&override, "s", "", "Override the config files session name.")
-	flag.Parse()
-
-	if flag.Arg(0) == "" {
-		fmt.Println("Usage: ", os.Args[0], "[-s <name>] <config file>")
-		os.Exit(1)
-	}
-	flag.Arg(0)
-
-	data, err := ioutil.ReadFile(flag.Arg(0))
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	var project Project
-
-	err = yaml.UnmarshalStrict(data, &project)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	session := coalesce(override, project.Name, "new")
-
+func up(session string, project *Project) {
 	for wi, w := range project.Windows {
 		target := fmt.Sprintf("%s:%d", session, wi)
 		dir := coalesce(w.Dir, project.Dir, ".")
@@ -129,9 +109,50 @@ func main() {
 	}
 
 	for wi, w := range project.Windows {
-		target := fmt.Sprintf("%s:%d", session, wi)
 		if w.Focus {
+			target := fmt.Sprintf("%s:%d", session, wi)
 			SelectWindow(target)
 		}
 	}
 }
+
+func down(session string, project *Project) {
+	KillSession(session)
+}
+
+var defaultFile = "tmux-compose.yml"
+
+func main() {
+	var overrideName string
+	var composeFile string
+	flag.StringVar(&overrideName, "s", "", "Override the config files session name.")
+	flag.StringVar(&composeFile, "f", defaultFile, "Specify an alternate compose file")
+	flag.Parse()
+
+	if flag.Arg(0) == "" {
+		fmt.Println("Usage: ", os.Args[0], "[OPTIONS] <up> | <down>")
+		os.Exit(1)
+	}
+
+	data, err := ioutil.ReadFile(composeFile)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	var project Project
+
+	err = yaml.UnmarshalStrict(data, &project)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	session := coalesce(overrideName, project.Name, "new")
+	action := flag.Arg(0)
+
+	switch action {
+	case "up":
+		up(session, &project)
+	case "down":
+		down(session, &project)
+	}
+}