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authorEelco Dolstra <e.dolstra@tudelft.nl>2006-12-12T23·05+0000
committerEelco Dolstra <e.dolstra@tudelft.nl>2006-12-12T23·05+0000
commita3e6415ba8cf1b8d2a1db40c06997d997eac8afc (patch)
tree16e43edf9a785101b562ee3bfa6cbaeb600fc22a /blacklisting
parentb438d37558eab56a2927771013c9080675381ba8 (diff)
* New primop builtins.filterSource, which can be used to filter files
  from a source directory.  All files for which a predicate function
  returns true are copied to the store.  Typical example is to leave
  out the .svn directory:

    stdenv.mkDerivation {
      ...
      src = builtins.filterSource
        (path: baseNameOf (toString path) != ".svn")
        ./source-dir;
      # as opposed to
      #   src = ./source-dir;
    }

  This is important because the .svn directory influences the hash in
  a rather unpredictable and variable way.

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