It's what you use to watch things, you know?

OK, seriously, broccoli-timepiece is a command line utility that uses the broccoli-sane-watcher and Builder that come with broccoli to provide rebuild semantics without running a webserver.

Uses the standard broccoli watcher to build a tree (from the Brocfile.js in your projects root), and output to a directory.

Pass the name of the directory to output to as the first command line parameter.

npm install -g broccoli-timepiece
broccoli-timepiece dist/

When passing --verbose (or -v) you will also see which file triggered the rebuild action, accompanied with the Slowest Trees output. Useful for tracking down where bottle necks are present.

broccoli-timepiece dist/ --verbose

file changed css/style.scss
Build successful - 1967ms

Slowest Trees                                 | Total
----------------------------------------------+---------------------
AutoprefixerFilter                            | 748ms
CoreObject                                    | 429ms
SassCompiler                                  | 418ms
SassCompiler                                  | 372ms

Slowest Trees (cumulative)                    | Total (avg)
----------------------------------------------+---------------------
SassCompiler (2)                              | 790ms (395 ms)
AutoprefixerFilter (1)                        | 748ms
CoreObject (1)                                | 429ms

Considered a more reliable alternative when it comes to watching file changes. Requires watchman to be installed prior (brew install watchman if you are on OS X). Activated by passing either --watchman or -w. More information about watchman.

broccoli-timepiece dist/ --watchman

This project is distributed under the MIT license.