Watch files for changes

[stylemistake]

We need some function that would watch for file changes and run tasks when it detects changes.

Function should be called runner_watch.

Possible implementations:

• using digest functions (sha1, sha256, md5, md5sum, etc...) and run through all the files with sleep 1 (not the best way)
• plain bash just by checking update time on files (better)
• use inotifywait (requires a dependency inotify-tools, can be optional, best method)

[bserem]

Is this dropped or has it been implemented?

[stylemistake]

I dropped this feature, as it seemed unnecessary for my use cases. For node, we have nodemon, webpack dev server/middleware; auto-reload out of the box for django, php or literally any CGI app.

It shouldn't be difficult to implement, tho.

[bserem]

Thanks!

[stylemistake]

Reopening this feature, because there might be a good use for it considering the current development in the "next" branch.

[oshliaer]

I'm using watchman for re-run runner.

Unfortunately it looks like runner runs watchman for to run runner's tasks.

watchman is truly a powerful tool. It works with tens of thousands of files simultaneously at very low capacities.