我如何从另一个rake文件修改/扩展rake文件？(How can I modify/extend a rake file from another rake file?)

我试图找到一种方法来修改/扩展一个RakeFile从另一个RakeFile实际上没有改变它。

当我运行我的rake任务时，我从SVN中检索一个包含rakefile的解决方案。 我要：

在这个rakefile中改变一个变量。 添加一个新任务到这个使用现有任务的rakefile。 执行新的任务。

我希望在不实际修改光盘上的原始RakeFile的情况下执行此操作。

I'm trying to find a way to modify/extend a RakeFile from another RakeFile without actually changing it.

When I run my rake task I retrieve a solution from SVN which contains a rakefile. I want to:

Change a variable in this rakefile. Add a new task to this rakefile which makes use of existing tasks. Execute the new task.

I want to do this preferably without actually modifying the original RakeFile on disc.

最满意答案

这是在执行任务之前运行任意代码的一种方法。

your_task = Rake::Task['task:name'] your_task.enhance { this_runs_before_the_task_executes }

你可以类似地执行rake任务。

your_task.invoke

完整的文档在这里 。

This is the code which I ended up with to solve the particular problem I was having.

Dir.chdir File.dirname(__FILE__) + '/their_app' load 'RakeFile' # Modify stuff from original RakeFile COMPILE_TARGET = "release" # Add my task task :my_task =>[:my_pre_task, :their_task]

I don't know if this is the right way to do it and would appreciate comments/edits if anyone knows a better way.

Thanks to leethal for submitting a answer which helped me on the way and was very useful for another problem I was having.

我如何从另一个rake文件修改/扩展rake文件？(How can I modify/extend a rake file from another rake file?)

我试图找到一种方法来修改/扩展一个RakeFile从另一个RakeFile实际上没有改变它。

当我运行我的rake任务时，我从SVN中检索一个包含rakefile的解决方案。 我要：

在这个rakefile中改变一个变量。 添加一个新任务到这个使用现有任务的rakefile。 执行新的任务。

我希望在不实际修改光盘上的原始RakeFile的情况下执行此操作。

I'm trying to find a way to modify/extend a RakeFile from another RakeFile without actually changing it.

When I run my rake task I retrieve a solution from SVN which contains a rakefile. I want to:

Change a variable in this rakefile. Add a new task to this rakefile which makes use of existing tasks. Execute the new task.

I want to do this preferably without actually modifying the original RakeFile on disc.

最满意答案

这是在执行任务之前运行任意代码的一种方法。

your_task = Rake::Task['task:name'] your_task.enhance { this_runs_before_the_task_executes }

你可以类似地执行rake任务。

your_task.invoke

完整的文档在这里 。

This is the code which I ended up with to solve the particular problem I was having.

Dir.chdir File.dirname(__FILE__) + '/their_app' load 'RakeFile' # Modify stuff from original RakeFile COMPILE_TARGET = "release" # Add my task task :my_task =>[:my_pre_task, :their_task]

I don't know if this is the right way to do it and would appreciate comments/edits if anyone knows a better way.

Thanks to leethal for submitting a answer which helped me on the way and was very useful for another problem I was having.