[PATCH] devtool: execute associated functions while preparing the source tree

[Jiajie Hu <jiajie.hu@intel.com>]

Execute prefuncs and postfuncs associated with the task while preparing
the source tree. If any changes are made to the source tree by these
prefuncs or postfuncs, a separate commit will be created so that the
changes won't get incorporated with other patches.

Signed-off-by: Jiajie Hu <jiajie.hu@intel.com>
---
 scripts/lib/devtool/standard.py | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/scripts/lib/devtool/standard.py b/scripts/lib/devtool/standard.py
index e4d2a57..8302112 100644
--- a/scripts/lib/devtool/standard.py
+++ b/scripts/lib/devtool/standard.py
@@ -424,8 +424,7 @@ class BbTaskExecutor(object):
         self.rdata = rdata
         self.executed = []
 
-    def exec_func(self, func, report):
-        """Run bitbake task function"""
+    def _exec_func(self, func, report):
         if not func in self.executed:
             deps = self.rdata.getVarFlag(func, 'deps', False)
             if deps:
@@ -435,12 +434,25 @@ class BbTaskExecutor(object):
                 logger.info('Executing %s...' % func)
             fn = self.rdata.getVar('FILE', True)
             localdata = bb.build._task_data(fn, func, self.rdata)
+            prefuncs = localdata.getVarFlag(func, 'prefuncs', True)
+            postfuncs = localdata.getVarFlag(func, 'postfuncs', True)
             try:
+                for prefunc in (prefuncs or '').split():
+                    bb.build.exec_func(prefunc, localdata)
+                    yield prefunc
                 bb.build.exec_func(func, localdata)
+                for postfunc in (postfuncs or '').split():
+                    bb.build.exec_func(postfunc, localdata)
+                    yield postfunc
             except bb.build.FuncFailed as e:
                 raise DevtoolError(str(e))
             self.executed.append(func)
 
+    def exec_func(self, func, report):
+        """Run bitbake task function"""
+        for step in self._exec_func(func, report):
+            pass
+
 
 class PatchTaskExecutor(BbTaskExecutor):
     def __init__(self, rdata):
@@ -462,7 +474,12 @@ class PatchTaskExecutor(BbTaskExecutor):
                 else:
                     os.rmdir(patchdir)
 
-        super(PatchTaskExecutor, self).exec_func(func, report)
+        for step in super(PatchTaskExecutor, self)._exec_func(func, report):
+            if self.check_git and os.path.exists(srcsubdir):
+                stdout, _ = bb.process.run('git status --porcelain', cwd=srcsubdir)
+                if stdout:
+                    bb.process.run('git add .; git %s commit -a -m "Committing changes from %s\n\n%s"' % (' '.join(self.useroptions), step, GitApplyTree.ignore_commit_prefix + ' - from %s' % step), cwd=srcsubdir)
+
         if self.check_git and os.path.exists(srcsubdir):
             if func == 'do_patch':
                 if os.path.exists(patchdir):
-- 
1.9.1