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= Rake 0.8.4 Released | ||
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Rake version 0.8.4 is a bug-fix release of rake. | ||
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== Changes | ||
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=== New Features / Enhancements in Version 0.8.4 | ||
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* Case is preserved on rakefile names. (patch from James | ||
M. Lawrence/quix) | ||
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* Windows system dir search order is now: HOME, HOMEDRIVE + HOMEPATH, | ||
APPDATA, USERPROFILE (patch from Luis Lavena) | ||
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* MingGW is now recognized as a windows platform. (patch from Luis | ||
Lavena) | ||
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=== Bug Fixes in Version 0.8.4 | ||
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* Fixed stray ARGV option problem that was interfering with | ||
Test::Unit::Runner. (patch from Pivotal Labs) | ||
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=== Infrastructure Improvements in Version 0.8.4 | ||
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* Numerous fixes to the windows test suite (patch from Luis Lavena). | ||
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* Improved Rakefile case insensitivity testing (patch from Luis | ||
Lavena). | ||
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* Better support for windows paths in the test task (patch from Simon | ||
Chiang/bahuvrihi) | ||
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== What is Rake | ||
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Rake is a build tool similar to the make program in many ways. But | ||
instead of cryptic make recipes, Rake uses standard Ruby code to | ||
declare tasks and dependencies. You have the full power of a modern | ||
scripting language built right into your build tool. | ||
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== Availability | ||
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The easiest way to get and install rake is via RubyGems ... | ||
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gem install rake (you may need root/admin privileges) | ||
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Otherwise, you can get it from the more traditional places: | ||
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Home Page:: http://rake.rubyforge.org/ | ||
Download:: http://rubyforge.org/project/showfiles.php?group_id=50 | ||
GitHub:: git://github.com/jimweirich/rake.git | ||
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== Task Argument Examples | ||
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Prior to version 0.8.0, rake was only able to handle command line | ||
arguments of the form NAME=VALUE that were passed into Rake via the | ||
ENV hash. Many folks had asked for some kind of simple command line | ||
arguments, perhaps using "--" to separate regular task names from | ||
argument values on the command line. The problem is that there was no | ||
easy way to associate positional arguments on the command line with | ||
different tasks. Suppose both tasks :a and :b expect a command line | ||
argument: does the first value go with :a? What if :b is run first? | ||
Should it then get the first command line argument. | ||
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Rake 0.8.0 solves this problem by explicitly passing values directly | ||
to the tasks that need them. For example, if I had a release task | ||
that required a version number, I could say: | ||
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rake release[0.8.4] | ||
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And the string "0.8.4" will be passed to the :release task. Multiple | ||
arguments can be passed by separating them with a comma, for example: | ||
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rake name[john,doe] | ||
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Just a few words of caution. The rake task name and its arguments | ||
need to be a single command line argument to rake. This generally | ||
means no spaces. If spaces are needed, then the entire rake + | ||
argument string should be quoted. Something like this: | ||
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rake "name[billy bob, smith]" | ||
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(Quoting rules vary between operating systems and shells, so make sure | ||
you consult the proper docs for your OS/shell). | ||
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=== Tasks that Expect Parameters | ||
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Parameters are only given to tasks that are setup to expect them. In | ||
order to handle named parameters, the task declaration syntax for | ||
tasks has been extended slightly. | ||
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For example, a task that needs a first name and last name might be | ||
declared as: | ||
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task :name, :first_name, :last_name | ||
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The first argument is still the name of the task (:name in this case). | ||
The next to argumements are the names of the parameters expected by | ||
:name (:first_name and :last_name in the example). | ||
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To access the values of the paramters, the block defining the task | ||
behaviour can now accept a second parameter: | ||
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task :name, :first_name, :last_name do |t, args| | ||
puts "First name is #{args.first_name}" | ||
puts "Last name is #{args.last_name}" | ||
end | ||
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The first argument of the block "t" is always bound to the current | ||
task object. The second argument "args" is an open-struct like object | ||
that allows access to the task arguments. Extra command line | ||
arguments to a task are ignored. Missing command line arguments are | ||
given the nil value. | ||
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== Thanks | ||
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As usual, it was input from users that drove a alot of these changes. The | ||
following people either contributed patches, made suggestions or made | ||
otherwise helpful comments. Thanks to ... | ||
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* James M. Lawrence/quix | ||
* Luis Lavena | ||
* Pivotal Labs | ||
* Simon Chiang/bahuvrihi | ||
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-- Jim Weirich |
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