pkgs/river-mk-keymap: Support a dry-run mode

This can be used to check that the keymap.json file is valid, before
deploying it.

2 files changed, 17 insertions, 9 deletions

diff --git a/pkgs/by-name/ri/river-mk-keymap/src/cli.rs b/pkgs/by-name/ri/river-mk-keymap/src/cli.rs
index 61646cfd..ad872cc9 100644
--- a/pkgs/by-name/ri/river-mk-keymap/src/cli.rs
+++ b/pkgs/by-name/ri/river-mk-keymap/src/cli.rs
@@ -26,6 +26,10 @@ pub(super) struct Args {
 
 #[derive(clap::Subcommand, Clone, Debug)]
 pub(super) enum SubCommand {
-    Init {},
+    Init {
+        #[arg(short, long, default_value_t = false)]
+        /// Only show what would be done, don't actually perform the init.
+        dry_run: bool,
+    },
     ShowHelp {},
 }
diff --git a/pkgs/by-name/ri/river-mk-keymap/src/main.rs b/pkgs/by-name/ri/river-mk-keymap/src/main.rs
index 7d7736b9..18c291cf 100644
--- a/pkgs/by-name/ri/river-mk-keymap/src/main.rs
+++ b/pkgs/by-name/ri/river-mk-keymap/src/main.rs
@@ -45,17 +45,21 @@ fn main() -> Result<(), anyhow::Error> {
     };
 
     match args.command {
-        cli::SubCommand::Init {} => {
+        cli::SubCommand::Init { dry_run } => {
             println!("{config}");
-            // println!("Commands:");
             for mut command in config.to_commands(keymap_path)? {
-                // println!("{command:?}");
-                let status = command
-                    .status()
-                    .with_context(|| format!("Failed to run command: '{command:?}'"))?;
+                if dry_run {
+                    println!("{command:?}");
+                } else {
+                    let status = command
+                        .status()
+                        .with_context(|| format!("Failed to run command: '{command:?}'"))?;
 
-                if !status.success() {
-                    eprintln!("Command ('{command:?}') returned with non zero exit code: {status}");
+                    if !status.success() {
+                        eprintln!(
+                            "Command ('{command:?}') returned with non zero exit code: {status}"
+                        );
+                    }
                 }
             }
         }