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36 lines
1.5 KiB
Markdown
36 lines
1.5 KiB
Markdown
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I'm currently working on a [node.js][node] module ([node-genx]) with a C++ component.
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Each time a change was made to the code its necessary to rebuild the
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module then run the tests. This was getting tiring so I decided to use
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[guard] to automate the process.
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[node]: http://nodejs.org/
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[node-genx]: https://github.com/wezm/node-genx
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[guard]: https://github.com/guard/guard
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guard is a ruby gem that provides a DSL for performing actions when
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a set of watched files change. There a bunch of "guards" available
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that provide out of the box support for things like [rspec], [jammit],
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[sass] and [CoffeeScript][coffee-script]. For simple custom cases
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like mine there is also [guard-shell], which will run a shell
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command when one of its watched files changes.
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[coffee-script]: http://jashkenas.github.com/coffee-script/
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[rspec]: http://rspec.info/
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[jammit]: http://documentcloud.github.com/jammit/
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[sass]: http://sass-lang.com/
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[guard-shell]: https://github.com/guard/guard-shell
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guard uses a Guardfile akin to a Makefile in you project directory to
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configure the guards. Mine looks like this:
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guard 'shell' do
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watch(%r".*\.(?:cc|h)") { |m| `node-waf build && jasbin` }
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watch(%r"spec/.*_spec\..*") {|m| `jasbin --verbose` }
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end
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This runs `node-waf build && jasbin` to rebuild the module and run the
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tests when any of the C++ source files or headers change. It just runs
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the the tests when any of the spec files change.
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Once your Guardfile is setup simply run `guard` in you project directory
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and it will start watching for changes.
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