Can't watch one file? about watch HOT 17 OPEN

+1 would like to watch a single file but can't seem ? (trying by CLI)

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+1 I think not only one file but also a glob expr should be accepted by the cli.
since we often need something like this:

watch "coffee -c *.coffee" *.coffee

from watch.

N.B. watch-run supports single files and globs, i.e.:

watch-run -p myfile "cp myfile dist/"
watch-run -p *.coffee "coffee -c *.coffee"

(just mentioning it since it appears watch isn't particularly actively maintained, and I found an alternative)

from watch.

Why not use http://nodejs.org/api/fs.html#fs_fs_watch_filename_options_listener if you are are only watching one file?

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Same reason I found this issue. +1

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It would be very useful to watch only one file using the CLI. +1

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+1 any update on this?

To answer @finnp, some configurations would benefit from this. For instance, my current configuration has an index.js file and a src file. If I were to change index.js, watch would not trigger a event.

watch "npm run js" index.js src

I may open a pull request.

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@tomwidmer thx

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@rgherk were you gonna create a PR for your implementation?

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+1 for this

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+1 from me too! Are you planning on implementing this or are we waiting for nothing? I'm asking as this conversation has now been open since Dec 10, 2014.

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@sarukuku it's a +1 from me and likely most watch users out there. I'm a contributor here and the plans are always to make everything is great as it can be. I don't have time at present. PRs absolutely welcome.

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@levithomason ofc, good to hear that this has been noted and that the issue isn't "dead". I'd like to help in fixing this but I think this kind of issue is out of my league. :)

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@levithomason it seems that @rgherk has created a possible fix for this. Could we use this?

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If anyone is still struggling with this, use https://github.com/Qard/onchange instead. I'm unsubscribing from this issue.

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@sarukuku watch is hardly in my workflow anymore so it doesn't get much attention from me. I did ask @rgherk for some tests. Also, that PR is very outdated and needs rebased. My concern with merging it is that it refactors a core part of watch with lots of business logic. I don't have time to grok it and make sure it is done right.

If there were some tests, I'd feel much better releasing it.

from watch.

N.B. watch-run supports single files and globs, i.e.:

watch-run -p myfile "cp myfile dist/"
watch-run -p *.coffee "coffee -c *.coffee"

(just mentioning it since it appears watch isn't particularly actively maintained, and I found an alternative)

Ended up using @tomwidmer suggestion and it works great thanks!

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