1 # Copyright 2015 gRPC authors.
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
14 """Buildgen expand filegroups plugin.
16 This takes the list of libs from our yaml dictionary,
17 and expands any and all filegroup.
22 def excluded(filename, exclude_res):
24 if r.search(filename):
37 FILEGROUP_LISTS = ['src', 'headers', 'public_headers', 'deps']
39 FILEGROUP_DEFAULTS = {
47 def mako_plugin(dictionary):
48 """The exported plugin code for expand_filegroups.
50 The list of libs in the build.yaml file can contain "filegroups" tags.
51 These refer to the filegroups in the root object. We will expand and
52 merge filegroups on the src, headers and public_headers properties.
55 libs = dictionary.get('libs')
56 targets = dictionary.get('targets')
57 filegroups_list = dictionary.get('filegroups')
58 filegroups_set = set(fg['name'] for fg in filegroups_list)
61 for fg in filegroups_list:
62 for lst in FILEGROUP_LISTS:
63 fg[lst] = fg.get(lst, [])
64 fg['own_%s' % lst] = list(fg[lst])
65 for attr, val in FILEGROUP_DEFAULTS.items():
69 todo = list(filegroups_list)
74 todo), "infinite loop in filegroup uses clauses: %r" % [
75 t['name'] for t in todo
77 # take the first element of the todo list
80 # check all uses filegroups are present (if no, skip and come back later)
82 for use in cur.get('uses', []):
83 assert use in filegroups_set, (
84 "filegroup(%s) uses non-existent %s" % (cur['name'], use))
85 if use not in filegroups:
92 assert 'plugins' not in cur
94 for uses in cur.get('uses', []):
95 for plugin in filegroups[uses]['plugins']:
96 if plugin not in plugins:
97 plugins.append(plugin)
98 for lst in FILEGROUP_LISTS:
99 vals = cur.get(lst, [])
100 vals.extend(filegroups[uses].get(lst, []))
102 cur_plugin_name = cur.get('plugin')
104 plugins.append(cur_plugin_name)
105 cur['plugins'] = plugins
106 filegroups[cur['name']] = cur
108 # build reverse dependency map
110 for thing in dictionary['libs'] + dictionary['targets'] + dictionary[
112 things[thing['name']] = thing
113 thing['used_by'] = []
114 thing_deps = lambda t: t.get('uses', []) + t.get('filegroups', []) + t.get(
116 for thing in things.values():
118 todo = thing_deps(thing)
122 if cur in done: continue
123 things[cur]['used_by'].append(thing['name'])
124 todo.extend(thing_deps(things[cur]))
127 # the above expansion can introduce duplicate filenames: contract them here
128 for fg in filegroups.values():
129 for lst in FILEGROUP_LISTS:
130 fg[lst] = uniquify(fg.get(lst, []))
132 for tgt in dictionary['targets']:
133 for lst in FILEGROUP_LISTS:
134 tgt[lst] = tgt.get(lst, [])
135 tgt['own_%s' % lst] = list(tgt[lst])
137 for lib in libs + targets:
138 assert 'plugins' not in lib
140 for lst in FILEGROUP_LISTS:
141 vals = lib.get(lst, [])
142 lib[lst] = list(vals)
143 lib['own_%s' % lst] = list(vals)
144 for fg_name in lib.get('filegroups', []):
145 fg = filegroups[fg_name]
146 for plugin in fg['plugins']:
147 if plugin not in plugins:
148 plugins.append(plugin)
149 for lst in FILEGROUP_LISTS:
150 vals = lib.get(lst, [])
151 vals.extend(fg.get(lst, []))
153 lib['plugins'] = plugins
154 if lib.get('generate_plugin_registry', False):
155 lib['src'].append('src/core/plugin_registry/%s_plugin_registry.cc' %
157 for lst in FILEGROUP_LISTS:
158 lib[lst] = uniquify(lib.get(lst, []))