feat: show available commands when 0 or 1 required arguments are given

README.md

@@ -19,9 +19,9 @@ goreleaser release --rm-dist
 
 ## Installing on Linux (tested on Ubuntu)
 ```bash
-wget https://github.com/flawiddsouza/shortcommand/releases/download/v0.0.2/shortcommand_0.0.2_Linux_x86_64.tar.gz
-tar -xf shortcommand_0.0.2_Linux_x86_64.tar.gz
+wget https://github.com/flawiddsouza/shortcommand/releases/download/v0.0.3/shortcommand_0.0.3_Linux_x86_64.tar.gz
+tar -xf shortcommand_0.0.3_Linux_x86_64.tar.gz
 mv shortcommand ~/.local/bin
-rm shortcommand_0.0.2_Linux_x86_64.tar.gz
+rm shortcommand_0.0.3_Linux_x86_64.tar.gz
 ```
 You should then be able to use the `shortcommand` command anywhere you are.

main.go

@@ -85,11 +85,6 @@ func main() {
 		return
 	}
 
-	if len(os.Args) < 3 {
-		fmt.Println("Two arguments need to passed to the command, first is your shortcommand and then the command under it")
-		return
-	}
-
 	var parsedConfig Config
 
 	err = yaml.Unmarshal(yamlFile, &parsedConfig)
@@ -98,6 +93,30 @@ func main() {
 		return
 	}
 
+	if len(os.Args) < 2 {
+		fmt.Println("Available commands")
+		for _, shortCommand := range parsedConfig.ShortCommands {
+			fmt.Printf("%s\n", shortCommand.Name)
+			for _, command := range shortCommand.Commands {
+				fmt.Printf("%s%s%s%s\n", "  ", command.Name, "\t", command.Description)
+			}
+		}
+		return
+	}
+
+	if len(os.Args) < 3 {
+		for _, shortCommand := range parsedConfig.ShortCommands {
+			if shortCommand.Name == os.Args[1] {
+				fmt.Printf("Available sub commands for %s\n", os.Args[1])
+				for _, command := range shortCommand.Commands {
+					fmt.Printf("%s%s%s\n", command.Name, "\t", command.Description)
+				}
+				break
+			}
+		}
+		return
+	}
+
 	for _, shortCommand := range parsedConfig.ShortCommands {
 		if shortCommand.Name == os.Args[1] {
 			for _, command := range shortCommand.Commands {