macro expansion in build recipes

[joel@…]

I wanted a way to pass certain key information, like revision number, to the slave build process. In order to accomplish that, I have implemented certain macros that may be placed into the build recipe, and will then be expanded before sending it to the slave.

The specific macros implemented in this patch are:

%BUILD% = Build id number
%REVISION% = Revision
%PLATFORM% = Platform name
%TIME% = Revision time

This allows you to incorporate this important information into the build process. For example, if you wish to have the slave perform its own source code checkout, and you don't want to wait for Bitten 0.7, you could use this patch and then put these build steps into your recipe:

  <step id="remove_tarball" description="Remove Bitten's tarball">
    <sh:exec executable="rm" args="-r *"/>
  </step>

  <step id="checkout" description="Checkout source from SVN">
    <sh:exec executable="svn" args="svn co -r %REVISION% http://server/svn/repo/trunk ."/>
  </step>

[joel@…]

Patch to provide the macro expansion as described here

[joel@…]

oops-- there's a slight error in my example recipe, it should read:

  <step id="remove_tarball" description="Remove Bitten's tarball">
    <sh:exec executable="rm" args="-r *"/>
  </step>

  <step id="checkout" description="Checkout source from SVN">
    <sh:exec executable="svn" args="co -r %REVISION% http://server/svn/repo/trunk ."/>
  </step>

Also, the * doesn't seem to get expanded in the sh:exec command, so the step of removing the tarball files will need to be reworked. (The files do need to be removed, otherwise the svn checkout will fail.)

[joel@…]

For removing the extracted tarball, this will work:

  <step id="remove_tarball" description="Remove Bitten's tarball">
    <sh:exec executable="sh" args="-c 'rm -r *'"/>
  </step>

[osimons]

All these properties (except revision timestamp) are already available for use in recipes.

See Documentation/recipes.html and Documentation/configure.html