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33 lines
1.2 KiB
Markdown
33 lines
1.2 KiB
Markdown
# Set Default Tasks For Rake To Run
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Let's say our Ruby codebase has a `test` rake task and a `test:system` rake
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task. One runs our unit tests and the other runs our system (headless
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browser-based) tests. They aren't necessary defined in our `Rakefile`. In fact,
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that's how it is in a Rails codebase where these are defined by Rails itself.
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We want the default action when [`rake`](https://ruby.github.io/rake/) is
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invoked by itself to be to run both of those test tasks.
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This can be accomplished by specifying a `default` task and specifying both of
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those tasks as prerequisites.
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```ruby
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task default: ["test", "test:system"]
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```
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The `default` task itself does nothing. When we invoke it though, it has to run
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our prerequisites. So running `rake` results in `test` and then `test:system`
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getting run.
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If I have something like
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[`unicornleap`](https://github.com/dkarter/dotfiles/blob/b5aae6a9edd5766f0cc9100235b0955a9d53aa85/installer/mac-setup.sh#L47-L74)
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or
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[`confetti`](https://manual.raycast.com/deeplinks#block-702a9613bc82440d853492f553876a20),
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then I can have one of those run in the event that all the prerequisites pass.
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```ruby
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task default: ["test", "test:system"] do
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system("unicornleap") if system("which unicornleap > /dev/null 2>&1")
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end
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```
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