braid: add 'help' subcommand

strawlab · Nov 29, 2024 · 866d315 · 866d315
1 parent 6b5fe81
commit 866d315
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/braid/src/bin/braid.rs b/braid/src/bin/braid.rs
@@ -1,10 +1,10 @@
-use clap::Parser;
+use clap::{CommandFactory, Parser};
 use color_eyre::{eyre::WrapErr, Result};
 
 #[derive(Debug, Parser)]
 #[command(author, version, about)]
 struct BraidLauncherCliArgs {
-    /// Command to execute (e.g. run, show-config, default-config)
+    /// Command to execute (e.g. run, show-config, default-config, help)
     command: String,
     /// Options specific to the command
     options: Vec<String>,
@@ -20,6 +20,12 @@ fn main() -> Result<()> {
     let args = BraidLauncherCliArgs::parse();
     tracing::debug!("{:?}", args);
 
+    if args.command == "help" {
+        let help = BraidLauncherCliArgs::command().render_long_help();
+        println!("{}", help.ansi());
+        return Ok(());
+    }
+
     let cmd_name = format!("braid-{}", args.command);
 
     let status = std::process::Command::new(&cmd_name)