From 1a0cb5b5312941521ab021cfe9eaed498f35900b Mon Sep 17 00:00:00 2001
From: David Sherret <dsherret@users.noreply.github.com>
Date: Mon, 14 Oct 2024 20:48:39 -0400
Subject: feat(unstable): `--unstable-detect-cjs` for respecting explicit
 `"type": "commonjs"` (#26149)

When using the `--unstable-detect-cjs` flag or adding `"unstable":
["detect-cjs"]` to a deno.json, it will make a JS file CJS if the
closest package.json contains `"type": "commonjs"` and the file is not
an ESM module (no TLA, no `import.meta`, no `import`/`export`).
---
 cli/tools/compile.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'cli/tools')

diff --git a/cli/tools/compile.rs b/cli/tools/compile.rs
index c1f98bc08..3cc4414fc 100644
--- a/cli/tools/compile.rs
+++ b/cli/tools/compile.rs
@@ -54,6 +54,16 @@ pub async fn compile(
     );
   }
 
+  if cli_options.unstable_detect_cjs() {
+    log::warn!(
+      concat!(
+        "{} --unstable-detect-cjs is not properly supported in deno compile. ",
+        "The compiled executable may encounter runtime errors.",
+      ),
+      crate::colors::yellow("Warning"),
+    );
+  }
+
   let output_path = resolve_compile_executable_output_path(
     http_client,
     &compile_flags,
-- 
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