rename '--fetch/build-grammars' flags into '--grammar fetch/build'

The old flags were a bit long. --grammar is also aliased to -g to make
it even easier.

1 files changed, 7 insertions, 2 deletions

diff --git a/helix-term/src/args.rs b/helix-term/src/args.rs
index 80076528..e0f0af00 100644
--- a/helix-term/src/args.rs
+++ b/helix-term/src/args.rs
@@ -34,8 +34,13 @@ impl Args {
                     args.health = true;
                     args.health_arg = argv.next_if(|opt| !opt.starts_with('-'));
                 }
-                "--fetch-grammars" => args.fetch_grammars = true,
-                "--build-grammars" => args.build_grammars = true,
+                "-g" | "--grammar" => match argv.next().as_deref() {
+                    Some("fetch") => args.fetch_grammars = true,
+                    Some("build") => args.build_grammars = true,
+                    _ => {
+                        anyhow::bail!("--grammar must be followed by either 'fetch' or 'build'")
+                    }
+                },
                 arg if arg.starts_with("--") => {
                     anyhow::bail!("unexpected double dash argument: {}", arg)
                 }