feat(unstable): allow bare specifier for builtin node module (#20728)

closes #20566

2 files changed, 24 insertions, 0 deletions

diff --git a/cli/args/flags.rs b/cli/args/flags.rs
index 66981b239..138d77359 100644
--- a/cli/args/flags.rs
+++ b/cli/args/flags.rs
@@ -1,5 +1,6 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 
+use clap::builder::FalseyValueParser;
 use clap::value_parser;
 use clap::Arg;
 use clap::ArgAction;
@@ -405,6 +406,7 @@ pub struct Flags {
   pub reload: bool,
   pub seed: Option<u64>,
   pub unstable: bool,
+  pub unstable_bare_node_builtlins: bool,
   pub unsafely_ignore_certificate_errors: Option<Vec<String>>,
   pub v8_flags: Vec<String>,
 }
@@ -801,6 +803,10 @@ pub fn flags_from_vec(args: Vec<String>) -> clap::error::Result<Flags> {
     flags.unstable = true;
   }
 
+  if matches.get_flag("unstable-bare-node-builtins") {
+    flags.unstable_bare_node_builtlins = true;
+  }
+
   if matches.get_flag("quiet") {
     flags.log_level = Some(Level::Error);
   } else if let Some(log_level) = matches.get_one::<String>("log-level") {
@@ -897,6 +903,15 @@ fn clap_root() -> Command {
         .global(true),
     )
     .arg(
+      Arg::new("unstable-bare-node-builtins")
+        .long("unstable-bare-node-builtins")
+        .help("Enable unstable bare node builtins feature")
+        .env("DENO_UNSTABLE_BARE_NODE_BUILTINS")
+        .value_parser(FalseyValueParser::new())
+        .action(ArgAction::SetTrue)
+        .global(true),
+    )
+    .arg(
       Arg::new("log-level")
         .short('L')
         .long("log-level")
diff --git a/cli/args/mod.rs b/cli/args/mod.rs
index d91affed1..a95c4d840 100644
--- a/cli/args/mod.rs
+++ b/cli/args/mod.rs
@@ -1216,6 +1216,15 @@ impl CliOptions {
     self.flags.unstable
   }
 
+  pub fn unstable_bare_node_builtlins(&self) -> bool {
+    self.flags.unstable_bare_node_builtlins
+      || self
+        .maybe_config_file()
+        .as_ref()
+        .map(|c| c.json.unstable.contains(&"bare-node-builtins".to_string()))
+        .unwrap_or(false)
+  }
+
   pub fn v8_flags(&self) -> &Vec<String> {
     &self.flags.v8_flags
   }