Add support for multiple files in fetch command (#3845)

cli/flags.rs

@@ -401,9 +401,11 @@ fn fetch_parse(flags: &mut DenoFlags, matches: &clap::ArgMatches) {
   importmap_arg_parse(flags, matches);
   config_arg_parse(flags, matches);
   no_remote_arg_parse(flags, matches);
-  if let Some(file) = matches.value_of("file") {
+  if let Some(files) = matches.values_of("file") {
+    for file in files {
       flags.argv.push(file.into());
     }
+  }
 }
 
 fn lock_args_parse(flags: &mut DenoFlags, matches: &clap::ArgMatches) {
@@ -669,7 +671,12 @@ fn fetch_subcommand<'a, 'b>() -> App<'a, 'b> {
     .arg(importmap_arg())
     .arg(config_arg())
     .arg(no_remote_arg())
-    .arg(Arg::with_name("file").takes_value(true).required(true))
+    .arg(
+      Arg::with_name("file")
+        .takes_value(true)
+        .required(true)
+        .min_values(1),
+    )
     .about("Fetch the dependencies")
     .long_about(
       "Fetch and compile remote dependencies recursively.
@@ -1683,6 +1690,20 @@ mod tests {
     );
   }
 
+  #[test]
+  fn fetch_multiple() {
+    let r =
+      flags_from_vec_safe(svec!["deno", "fetch", "script.ts", "script_two.ts"]);
+    assert_eq!(
+      r.unwrap(),
+      DenoFlags {
+        subcommand: DenoSubcommand::Fetch,
+        argv: svec!["deno", "script.ts", "script_two.ts"],
+        ..DenoFlags::default()
+      }
+    );
+  }
+
   #[test]
   fn run_seed() {
     let r =

cli/lib.rs

@@ -303,6 +303,8 @@ async fn install_command(
 }
 
 async fn fetch_command(flags: DenoFlags) {
+  let args = flags.argv.clone();
+
   let (mut worker, state) = create_worker_and_state(flags);
 
   let main_module = state.main_module.as_ref().unwrap().clone();
@@ -313,6 +315,18 @@ async fn fetch_command(flags: DenoFlags) {
 
   let result = worker.execute_mod_async(&main_module, None, true).await;
   js_check(result);
+
+  // resolve modules for rest of args if present
+  let files_len = args.len();
+  if files_len > 2 {
+    for next_specifier in args.iter().take(files_len).skip(2) {
+      let next_module =
+        ModuleSpecifier::resolve_url_or_path(&next_specifier).unwrap();
+      let result = worker.execute_mod_async(&next_module, None, true).await;
+      js_check(result);
+    }
+  }
+
   if state.flags.lock_write {
     if let Some(ref lockfile) = state.lockfile {
       let g = lockfile.lock().unwrap();

cli/tests/037_fetch_multiple.out

@@ -0,0 +1,5 @@
+Compile [WILDCARD]/fetch/test.ts
+Download http://localhost:4545/cli/tests/subdir/mod2.ts
+Download http://localhost:4545/cli/tests/subdir/print_hello.ts
+Compile [WILDCARD]/fetch/other.ts
+Download http://localhost:4545/cli/tests/subdir/mt_text_typescript.t1.ts

cli/tests/fetch/other.ts

@@ -0,0 +1 @@
+import "http://localhost:4545/cli/tests/subdir/mt_text_typescript.t1.ts";

cli/tests/fetch/test.ts

@@ -0,0 +1 @@
+import "http://localhost:4545/cli/tests/subdir/mod2.ts";

cli/tests/integration_tests.rs

@@ -413,6 +413,13 @@ itest!(_036_import_map_fetch {
   output: "036_import_map_fetch.out",
 });
 
+itest!(_037_fetch_multiple {
+  args: "fetch --reload fetch/test.ts fetch/other.ts",
+  check_stderr: true,
+  http_server: true,
+  output: "037_fetch_multiple.out",
+});
+
 itest!(_038_checkjs {
   // checking if JS file is run through TS compiler
   args: "run --reload --config 038_checkjs.tsconfig.json 038_checkjs.js",