build-wasm.diff

diff --git a/cli/src/main.rs b/cli/src/main.rs
index 0337ead0..f38c8543 100644
--- a/cli/src/main.rs
+++ b/cli/src/main.rs
@@ -33,6 +33,7 @@ enum Commands {
     Query(Query),
     Highlight(Highlight),
     Tags(Tags),
+    BuildWasm(BuildWasm),
     Playground(Playground),
     DumpLanguages(DumpLanguages),
 }
@@ -322,6 +323,18 @@ struct Tags {
     pub config_path: Option<PathBuf>,
 }
 
+#[derive(Args)]
+#[command(about = "Compile a parser to WASM", alias = "bw")]
+struct BuildWasm {
+    #[arg(
+        long,
+        help = "Run emscripten via docker even if it is installed locally"
+    )]
+    pub docker: bool,
+    #[arg(index = 1, num_args = 1.., help = "The path to output the wasm file")]
+    pub path: Option<String>,
+}
+
 #[derive(Args)]
 #[command(
     about = "Start local playground for a parser in the browser",
@@ -840,6 +853,17 @@ fn run() -> Result<()> {
             )?;
         }
 
+        Commands::BuildWasm(wasm_options) => {
+            let grammar_path = current_dir.join(wasm_options.path.unwrap_or_default());
+            wasm::compile_language_to_wasm(
+                &loader,
+                &grammar_path,
+                &current_dir,
+                None,
+                wasm_options.docker,
+            )?;
+        }
+
         Commands::Playground(playground_options) => {
             let open_in_browser = !playground_options.quiet;
             let grammar_path = playground_options