queckezz/watch-run

[Deprecated] Re-execute a given command everytime something changes in a specific directory

watch-run(1)

Note: Check out wait-run or just-wait for better and more recent approaches.

Re-execute a given command everytime something changes in a specific directory. Build upon gaze.

Installation

$ npm install -g watch-run

Usage

Via --help:

Usage: watch-run <cmd>

Options:

  -h, --help               output usage information
  -p, --pattern <pattern>  glob pattern. "," separates multiple patterns.
                           More info: https://github.com/isaacs/minimatch
  -i, --initial            run <cmd> on initial startup
  -d, --delay <n>          delay execution of <cmd> for a number of milliseconds
  -s, --stop-on-error      stop watching and exit when errors occur in <cmd>

Examples:

  # watch dir and execute cmd
  $ watch-run -p 'lib/**' cat package.json

  # watch dir "lib" and "src" and execute cmd
  $ watch-run -p 'lib/**,src/**' cat package.json

Example

$ watch-run -p 'js/modules/**/*.js' browserify main.js -o public/build.js

License

MIT

watch-run's Issues

Patterns don't work for me!

Hi,

I tried using watch-run (to create css from less) but did not get patterns working.

The following works for me (with npm):

"scripts": { "watch": "watch-run npm run-script less-to-css", "less-to-css": "lessc Content/themes/default/less/styles.less Content/themes/default/css/built/styles.css --source-map=Content/themes/default/css/built/styles.map" }

When running "npm run-script watch" the less file is compiled on any change in the directory.
If I try to restrict the watch-task only on less files it stops working. I tried different patterns:

"scripts": { "watch": "watch-run -p '/Content/**' npm run-script less-to-css", "less-to-css": "lessc Content/themes/default/less/styles.less Content/themes/default/css/built/styles.css --source-map=Content/themes/default/css/built/styles.map" }

"scripts": { "watch": "watch-run -p '*.less' npm run-script less-to-css", "less-to-css": "lessc Content/themes/default/less/styles.less Content/themes/default/css/built/styles.css --source-map=Content/themes/default/css/built/styles.map" }

"scripts": { "watch": "watch-run -p '/Content/themes/default/less/*.less' npm run-script less-to-css", "less-to-css": "lessc Content/themes/default/less/styles.less Content/themes/default/css/built/styles.css --source-map=Content/themes/default/css/built/styles.map" }
None of them worked. Am I doing something wrong or is there a bug?

Error: watch null EPERM

If I use this pattern, create and remove a directory without making any files inside it, then the process hangs and closes.

watch-run -p '*' echo "File Changed"

then, on another terminal

mkdir Test
rmdir Test

back to previous terminal, and

events.js:141
      throw er; // Unhandled 'error' event
      ^

Error: watch null EPERM
    at exports._errnoException (util.js:870:11)
    at FSEvent.FSWatcher._handle.onchange (fs.js:1217:21)

--delay no longer exists

I think this might have been accidentally blown-away by d68fcb2.

Multiple patterns to watch

I'd ike to supply multiple patterns to watch. I've tried the following two ways, but neither work.

$ run watch -p 'index.js lib/*.js' -- echo hello

$ run watch -p index.js -p 'lib/*.js' -- echo hello

gaze supports being given an array of patterns, but it looks like commander can't parse multiple -p arguments.

Doesn't work on Windows?

watch-run -p styles/*.less lessc styles/main.less styles/main.css

It hangs, displays no errors, but doesn't make any changes to main.css until I force the process to exit.

Thank you for this!

Thank you for this great work!

It actually inspired two derivative projects:

• wait-run
• just-wait

I am mentioning you as a copyright holder on my fork just-wait.

Just one question:
You are licensing under MIT, @RickWong under BSD-3-clause and myself under Creative Commons.

Is it ok by you if I tell people they can take their pick from these three licenses?

Windows style line endings result with error

Version 1.1.0 published in npm results with

watch-run$ ./bin/watch
env: node\r: No such file or directory

at least on macOS.

That's because of Windows style line endins.

Update dependencies

NPM gives the following annoying warnings when watch-run is installed. I am sorry to say this but this caused me to give npm-watch another shot even though watch-run was more like what I was looking for.

xeli-air:taach xeli$ npm install watch-run -g
npm WARN deprecated [email protected]: lodash@<3.0.0 is no longer maintained. Upgrade to lodash@^4.0.0.
npm WARN deprecated [email protected]: graceful-fs v3.0.0 and before will fail on node releases >= v7.0. Please update to graceful-fs@^4.0.0 as soon as possible. Use 'npm ls graceful-fs' to find it in the tree.
/usr/local/bin/watch-run -> /usr/local/lib/node_modules/watch-run/bin/watch
/usr/local/lib
└─┬ [email protected] 
  ├── [email protected] 
  ├── [email protected] 
  └─┬ [email protected] 
    └─┬ [email protected] 
      ├─┬ [email protected] 
      │ ├── [email protected] 
      │ └── [email protected] 
      ├── [email protected] 
      └─┬ [email protected] 
        ├── [email protected] 
        └── [email protected]