fix(serve): support serve hmr (#26078)

This PR addresses issue #25600 

Changes:
Updated `fn has_hmr` to check `serve` subcommand and return its hmr
value if found, in order to run the worker in serve mode with
hmr_runner. Thus the hmr event can be dispatched upon changes on the
file served.

1 files changed, 6 insertions, 0 deletions

diff --git a/cli/args/mod.rs b/cli/args/mod.rs
index f5ecc0449..754cd38fa 100644
--- a/cli/args/mod.rs
+++ b/cli/args/mod.rs
@@ -1454,6 +1454,12 @@ impl CliOptions {
     }) = &self.flags.subcommand
     {
       *hmr
+    } else if let DenoSubcommand::Serve(ServeFlags {
+      watch: Some(WatchFlagsWithPaths { hmr, .. }),
+      ..
+    }) = &self.flags.subcommand
+    {
+      *hmr
     } else {
       false
     }