Rollup of changes from the latest import

4 files changed, 34 insertions, 2 deletions

diff --git a/tools/buildgen/generate_projects.py b/tools/buildgen/generate_projects.py
index 5f3af7738b..5e78ad52d6 100755
--- a/tools/buildgen/generate_projects.py
+++ b/tools/buildgen/generate_projects.py
@@ -47,6 +47,7 @@ os.chdir(os.path.join(os.path.dirname(sys.argv[0]), '..', '..'))
 argp = argparse.ArgumentParser()
 argp.add_argument('build_files', nargs='+', default=[])
 argp.add_argument('--templates', nargs='+', default=[])
+argp.add_argument('--output_merged', default=None, type=str)
 argp.add_argument('--jobs', '-j', default=multiprocessing.cpu_count(), type=int)
 args = argp.parse_args()
 
@@ -74,6 +75,9 @@ for js in json:
 cmd.append('-w')
 preprocessed_build = '.preprocessed_build'
 cmd.append(preprocessed_build)
+if args.output_merged is not None:
+  cmd.append('-M')
+  cmd.append(args.output_merged)
 pre_jobs.append(jobset.JobSpec(cmd, shortname='preprocess', timeout_seconds=None))
 
 jobs = []
diff --git a/tools/buildgen/mako_renderer.py b/tools/buildgen/mako_renderer.py
index f629e68eb9..866e6fdb06 100755
--- a/tools/buildgen/mako_renderer.py
+++ b/tools/buildgen/mako_renderer.py
@@ -81,9 +81,10 @@ def main(argv):
   plugins = []
   output_name = None
   got_preprocessed_input = False
+  output_merged = None
 
   try:
-    opts, args = getopt.getopt(argv, 'hm:d:o:p:t:P:w:')
+    opts, args = getopt.getopt(argv, 'hM:m:d:o:p:t:P:w:')
   except getopt.GetoptError:
     out('Unknown option')
     showhelp()
@@ -107,6 +108,12 @@ def main(argv):
         showhelp()
         sys.exit(4)
       module_directory = arg
+    elif opt == '-M':
+      if output_merged is not None:
+        out('Got more than one output merged path')
+        showhelp()
+        sys.exit(5)
+      output_merged = arg
     elif opt == '-P':
       assert not got_preprocessed_input
       assert json_dict == {}
@@ -126,6 +133,9 @@ def main(argv):
   if not got_preprocessed_input:
     for plugin in plugins:
       plugin.mako_plugin(json_dict)
+    if output_merged:
+      with open(output_merged, 'w') as yaml_file:
+        yaml_file.write(yaml.dump(json_dict))
     for k, v in json_dict.items():
       dictionary[k] = bunch.to_bunch(v)
 
diff --git a/tools/buildgen/plugins/expand_filegroups.py b/tools/buildgen/plugins/expand_filegroups.py
index 69d95deb6b..477e69c869 100755
--- a/tools/buildgen/plugins/expand_filegroups.py
+++ b/tools/buildgen/plugins/expand_filegroups.py
@@ -115,6 +115,23 @@ def mako_plugin(dictionary):
       cur['plugins'] = plugins
       filegroups[cur['name']] = cur
 
+  # build reverse dependency map
+  things = {}
+  for thing in dictionary['libs'] + dictionary['targets'] + dictionary['filegroups']:
+    things[thing['name']] = thing
+    thing['used_by'] = []
+  thing_deps = lambda t: t.get('uses', []) + t.get('filegroups', []) + t.get('deps', [])
+  for thing in things.itervalues():
+    done = set()
+    todo = thing_deps(thing)
+    while todo:
+      cur = todo[0]
+      todo = todo[1:]
+      if cur in done: continue
+      things[cur]['used_by'].append(thing['name'])
+      todo.extend(thing_deps(things[cur]))
+      done.add(cur)
+
   # the above expansion can introduce duplicate filenames: contract them here
   for fg in filegroups.itervalues():
     for lst in FILEGROUP_LISTS:
diff --git a/tools/buildgen/plugins/make_fuzzer_tests.py b/tools/buildgen/plugins/make_fuzzer_tests.py
index 806489bcd2..e8e1bd0aa6 100644
--- a/tools/buildgen/plugins/make_fuzzer_tests.py
+++ b/tools/buildgen/plugins/make_fuzzer_tests.py
@@ -41,7 +41,8 @@ def mako_plugin(dictionary):
       new_target['build'] = 'test'
       new_target['name'] += '_one_entry'
       new_target['run'] = False
-      new_target['deps'].insert(0, 'one_input_fuzzer')
+      new_target['src'].append('test/core/util/one_corpus_entry_fuzzer.c')
+      new_target['own_src'].append('test/core/util/one_corpus_entry_fuzzer.c')
       targets.append(new_target)
       for corpus in new_target['corpus_dirs']:
         for fn in sorted(glob.glob('%s/*' % corpus)):