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@ -514,9 +514,9 @@ Tada!
h4. Rake is Ruby Make
Rake is a standalone Ruby utility that replaces the Unix utility `make`, and uses a `Rakefile` and `.rake` files to build up a list of tasks. In Rails, Rake is used for common administration tasks, especially sophisticated ones that build off of each other.
Rake is a standalone Ruby utility that replaces the Unix utility 'make', and uses a 'Rakefile' and +.rake+ files to build up a list of tasks. In Rails, Rake is used for common administration tasks, especially sophisticated ones that build off of each other.
You can get a list of Rake tasks available to you, which will often depend on your current directory, by typing `rake --tasks`. Each task has a description, and should help you find the thing you need.
You can get a list of Rake tasks available to you, which will often depend on your current directory, by typing +rake --tasks+. Each task has a description, and should help you find the thing you need.
<shell>
rake --tasks
@ -535,25 +535,30 @@ rake tmp:sockets:clear # Clears all files in tmp/sockets
Let's take a look at some of these 80 or so rake tasks.
h5. db: Database
The most common of the `db:` Rake namespace are migrate and create, and it will pay off to try out all of the migration rake tasks (up, down, redo, reset). `rake db:version` is useful when troubleshooting, telling you the current version of the database.
The most common tasks of the +db:+ Rake namespace are +migrate+ and +create+, and it will pay off to try out all of the migration rake tasks (+up+, +down+, +redo+, +reset+). +rake db:version+ is useful when troubleshooting, telling you the current version of the database.
h5. doc: Documentation
If you want to strip out or rebuild any of the Rails documentation (including this guide!), the `doc:` namespace has the tools. Stripping documentation is mainly useful for slimming your codebase, like if you're writing a Rails application for an embedded platform.
If you want to strip out or rebuild any of the Rails documentation (including this guide!), the +doc:+ namespace has the tools. Stripping documentation is mainly useful for slimming your codebase, like if you're writing a Rails application for an embedded platform.
h5. gems: Ruby gems
You can specify which gems your application uses, and `rake gems:install` will install them for you. Look at your environment.rb to learn how with the *config.gem* directive.
NOTE: `gems:unpack` will unpack, that is internalize your application's Gem dependencies by copying the Gem code into your vendor/gems directory. By doing this you increase your codebase size, but simplify installation on new hosts by eliminating the need to run `rake gems:install`, or finding and installing the gems your application uses.
You can specify which gems your application uses, and +rake gems:install+ will install them for you. Look at your environment.rb to learn how with the *config.gem* directive.
NOTE: +gems:unpack+ will unpack, that is internalize your application's Gem dependencies by copying the Gem code into your vendor/gems directory. By doing this you increase your codebase size, but simplify installation on new hosts by eliminating the need to run +rake gems:install+, or finding and installing the gems your application uses.
h5. notes: Code note enumeration
These tasks will search through your code for commented lines beginning with "FIXME", "OPTIMIZE", "TODO", or any custom annotation (like XXX) and show you them.
h5. rails: Rails-specific tasks
In addition to the `gems:unpack` task above, you can also unpack the Rails backend specific gems into vendor/rails by calling `rake rails:freeze:gems`, to unpack the version of Rails you are currently using, or `rake rails:freeze:edge` to unpack the most recent (cutting, bleeding edge) version.
When you have frozen the Rails gems, Rails will prefer to use the code in vendor/rails instead of the system Rails gems. You can "thaw" by running `rake rails:unfreeze`.
In addition to the +gems:unpack+ task above, you can also unpack the Rails backend specific gems into vendor/rails by calling +rake rails:freeze:gems+, to unpack the version of Rails you are currently using, or +rake rails:freeze:edge+ to unpack the most recent (cutting, bleeding edge) version.
After upgrading Rails, it is useful to run `rails:update`, which will update your config and scripts directories, and upgrade your Rails-specific javascript (like Scriptaculous).
When you have frozen the Rails gems, Rails will prefer to use the code in vendor/rails instead of the system Rails gems. You can "thaw" by running +rake rails:unfreeze+.
After upgrading Rails, it is useful to run +rails:update+, which will update your config and scripts directories, and upgrade your Rails-specific javascript (like Scriptaculous).
h5. test: Rails tests
@ -561,18 +566,21 @@ INFO: A good description of unit testing in Rails is given in "A Guide to Testin
Rails comes with a test suite called Test::Unit. It is through the use of tests that Rails itself is so stable, and the slew of people working on Rails can prove that everything works as it should.
The `test:` namespace helps in running the different tests you will (hopefully!) write.
The +test:+ namespace helps in running the different tests you will (hopefully!) write.
h5. time: Timezones
You can list all the timezones Rails knows about with `rake time:zones:all`, which is useful just in day-to-day life.
You can list all the timezones Rails knows about with +rake time:zones:all+, which is useful just in day-to-day life.
h5. tmp: Temporary files
The tmp directory is, like in the *nix /tmp directory, the holding place for temporary files like sessions (if you're using a file store for files), process id files, and cached actions. The `tmp:` namespace tasks will help you clear them if you need to if they've become overgrown, or create them in case of an rm -rf * gone awry.
The tmp directory is, like in the *nix /tmp directory, the holding place for temporary files like sessions (if you're using a file store for files), process id files, and cached actions. The +tmp:+ namespace tasks will help you clear them if you need to if they've become overgrown, or create them in case of an +rm -rf *+ gone awry.
h5. Miscellaneous tasks
`rake stats` is great for looking at statistics on your code, displaying things like KLOCs (thousands of lines of code) and your code to test ratio.
`rake secret` will give you a psuedo-random key to use for your session secret.
+rake stats+ is great for looking at statistics on your code, displaying things like KLOCs (thousands of lines of code) and your code to test ratio.
`rake routes` will list all of your defined routes, which is useful for tracking down routing problems in your app, or giving you a good overview of the URLs in an app you're trying to get familiar with.
+rake secret+ will give you a psuedo-random key to use for your session secret.
+rake routes+ will list all of your defined routes, which is useful for tracking down routing problems in your app, or giving you a good overview of the URLs in an app you're trying to get familiar with.