Allow patching.

slapos/recipe/build.py

@@ -325,7 +325,6 @@ class Script:
           self.logger.debug('Cleanup directory %r' % d)
           shutil.rmtree(d)
 
-
 class Cmmi(Script):
   """Simple configure-make-make-install compatible with hexagonit.recipe.cmmi
 
@@ -338,6 +337,7 @@ workdir = guessworkdir(extract_dir)
 configure_command = ["./configure", "--prefix=%(location)s"]
 configure_command.extend(%(configure-options)r.split())
 self.logger.info('Configuring with: %%s' %% configure_command)
+self.applyPatchList(self.options.get('patches'), self.options.get('patch-options'), self.options.get('patch-binary'), workdir)
 call(configure_command, cwd=workdir, env=env)
 self.logger.info('Building')
 call("make", cwd=workdir, env=env)
@@ -345,6 +345,28 @@ self.logger.info('Installing')
 call(["make", "install"], cwd=workdir, env=env)
 """
 
+  def applyPatchList(self, patch_string, patch_options=None, patch_binary=None, cwd=None):
+    if patch_string is not None:
+      if patch_options is None:
+        patch_options = []
+      else:
+        patch_options = patch_options.split(' ')
+      if patch_binary is None:
+        patch_binary = 'patch'
+      kwargs = dict()
+      if cwd is not None:
+        kwargs['cwd'] = cwd
+      for patch in patch_string.splitlines():
+        patch = patch.strip()
+        if patch:
+          if ' ' in patch:
+            patch, md5sum = patch.split()
+          else:
+            md5sum = None
+          kwargs['stdin'] = open(self.download(patch, md5sum))
+          self.logger.info('Applying patch %r' % patch)
+          call([patch_binary] + patch_options, **kwargs)
+
   def __init__(self, buildout, name, options):
     options['configure-options'] = ' '.join(options.get('configure-options',
       '').strip().splitlines())