`grunt copy:dynamic` doesn't copy all changed files

[iandunn]

I run into this problem a lot:

1. npm run watch
2. Change several PHP files near-simultaneously. Examples:
   1. git checkout {branch}
   2. Change several files in PhpStorm, then hit command+s to save them all at once.
3. Only some of the files are copied from src/ to build/:

Running "_watch" task
Completed in 0.737s at Mon Dec 07 2020 14:11:46 GMT-0800 (Pacific Standard Time) - Waiting...
>> File "src/wp-includes/class-wp-simplepie-file.php" changed.
>> File "src/wp-includes/SimplePie/File.php" changed.

Running "clean:dynamic" (clean) task
>> 0 paths cleaned.

Running "copy:dynamic" (copy) task
Copied 1 file

It doesn't happen all of the time, but it happens often, and makes testing changes very frustrating.

Workaround

In the mean time, I've written ​a simple PhpStorm file watcher task.

[azaozz]

Yeah, ran into this few times too (using BBEdit and VSCode). Workaround is to add some "white space" to a file and save again, then it usually picks it. Sounds like perhaps some concurrency problem between node, maybe svn/git, and the OS filesystem... Quite annoying.

Perhaps the idea to always build to both build/ and src/ would help to fix this, see: https://core.trac.wordpress.org/ticket/51966#comment:2.

[iandunn]

Yeah, I think that's a good next step.