Strawman OWNERS --> CODEOWNERS script

.github/CODEOWNERS

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+# Auto-generated by the tools/mkowners/mkowners.py tool
+# Uses OWNERS files in different modules throughout the
+# repository as the source of truth for module ownership.
+* @a11r @nicolasnoble @ctiller
+bazel/* @nicolasnoble @a11r @ctiller
+cmake/* @jtattermusch @a11r @nicolasnoble @ctiller
+doc/PROTOCOL-HTTP2.md @ejona86 @a11r @nicolasnoble @ctiller
+doc/interop-test-descriptions.md @ejona86 @a11r @nicolasnoble @ctiller
+etc/* @jboeuf @nicolasnoble @a11r @ctiller
+include/* @ctiller @markdroth @dgquintas @a11r @nicolasnoble
+src/core/* @ctiller @markdroth @dgquintas @a11r @nicolasnoble
+src/cpp/* @ctiller @markdroth @dgquintas @a11r @nicolasnoble
+src/csharp/* @jtattermusch @apolcyn @a11r @nicolasnoble @ctiller
+src/node/* @murgatroid99 @a11r @nicolasnoble @ctiller
+src/objective-c/* @muxi @makdharma @a11r @nicolasnoble @ctiller
+src/php/* @stanley-cheung @murgatroid99 @a11r @nicolasnoble @ctiller
+src/python/* @nathanielmanistaatgoogle @kpayson64 @a11r @nicolasnoble @ctiller
+src/ruby/* @apolcyn @murgatroid99 @a11r @nicolasnoble @ctiller
+tools/* @matt-kwong @jtattermusch @nicolasnoble @a11r @ctiller
+tools/codegen/core/* @ctiller @dgquintas @markdroth
+tools/dockerfile/* @matt-kwong @jtattermusch @nicolasnoble @a11r @ctiller
+tools/run_tests/* @matt-kwong @jtattermusch @nicolasnoble @a11r @ctiller

OWNERS

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+# Top level ownership
+
+@a11r
+@nicolasnoble
+@ctiller
+

bazel/OWNERS

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+@nicolasnoble
+

cmake/OWNERS

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+@jtattermusch
+

doc/OWNERS

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+@ejona86 PROTOCOL-HTTP2.md interop-test-descriptions.md
+

etc/OWNERS

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+@jboeuf
+@nicolasnoble

include/OWNERS

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+@ctiller
+@markdroth
+@dgquintas
+

src/core/OWNERS

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+@ctiller
+@markdroth
+@dgquintas
+

src/cpp/OWNERS

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+@ctiller
+@markdroth
+@dgquintas
+

src/csharp/OWNERS

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+@jtattermusch
+@apolcyn
+

src/node/OWNERS

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+@murgatroid99
+

src/objective-c/OWNERS

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+@muxi
+@makdharma
+

src/php/OWNERS

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+@stanley-cheung
+@murgatroid99
+

src/python/OWNERS

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+@nathanielmanistaatgoogle
+@kpayson64
+

src/ruby/OWNERS

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+@apolcyn
+@murgatroid99
+

tools/OWNERS

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+@matt-kwong
+@jtattermusch
+@nicolasnoble
+

tools/codegen/core/OWNERS

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+set noparent
+@ctiller
+@dgquintas
+@markdroth
+

tools/dockerfile/OWNERS

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+@matt-kwong
+@jtattermusch
+

tools/mkowners/mkowners.py

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+#!/usr/bin/env python3
+# Copyright 2017, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+# * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import argparse
+import collections
+import operator
+import os
+import re
+import subprocess
+
+#
+# Find the root of the git tree
+#
+
+git_root = (subprocess
+ .check_output(['git', 'rev-parse', '--show-toplevel'])
+ .decode('utf-8')
+ .strip())
+
+#
+# Parse command line arguments
+#
+
+default_out = os.path.join(git_root, '.github', 'CODEOWNERS')
+
+argp = argparse.ArgumentParser('Generate .github/CODEOWNERS file')
+argp.add_argument('--out', '-o',
+ type=str,
+ default=default_out,
+ help='Output file (default %s)' % default_out)
+args = argp.parse_args()
+
+#
+# Walk git tree to locate all OWNERS files
+#
+
+owners_files = [os.path.join(root, 'OWNERS')
+ for root, dirs, files in os.walk(git_root)
+ if 'OWNERS' in files]
+
+#
+# Parse owners files
+#
+
+Owners = collections.namedtuple('Owners', 'parent directives dir')
+Directive = collections.namedtuple('Directive', 'who globs')
+
+def parse_owners(filename):
+ with open(filename) as f:
+ src = f.read().splitlines()
+ parent = True
+ directives = []
+ for line in src:
+ line = line.strip()
+ # line := directive | comment
+ if not line: continue
+ if line[0] == '#': continue
+ # it's a directive
+ directive = None
+ if line == 'set noparent':
+ parent = False
+ elif line == '*':
+ directive = Directive(who='*', globs=[])
+ elif ' ' in line:
+ (who, globs) = line.split(' ', 1)
+ globs_list = [glob
+ for glob in globs.split(' ')
+ if glob]
+ directive = Directive(who=who, globs=globs_list)
+ else:
+ directive = Directive(who=line, globs=[])
+ if directive:
+ directives.append(directive)
+ return Owners(parent=parent,
+ directives=directives,
+ dir=os.path.relpath(os.path.dirname(filename), git_root))
+
+owners_data = sorted([parse_owners(filename)
+ for filename in owners_files],
+ key=operator.attrgetter('dir'))
+
+#
+# Modify owners so that parented OWNERS files point to the actual
+# Owners tuple with their parent field
+#
+
+new_owners_data = []
+for owners in owners_data:
+ if owners.parent == True:
+ best_parent = None
+ best_parent_score = None
+ for possible_parent in owners_data:
+ if possible_parent is owners: continue
+ rel = os.path.relpath(owners.dir, possible_parent.dir)
+ # '..' ==> we had to walk up from possible_parent to get to owners
+ # ==> not a parent
+ if '..' in rel: continue
+ depth = len(rel.split(os.sep))
+ if not best_parent or depth < best_parent_score:
+ best_parent = possible_parent
+ best_parent_score = depth
+ if best_parent:
+ owners = owners._replace(parent = best_parent.dir)
+ else:
+ owners = owners._replace(parent = None)
+ new_owners_data.append(owners)
+owners_data = new_owners_data
+
+#
+# In bottom to top order, process owners data structures to build up
+# a CODEOWNERS file for GitHub
+#
+
+def glob_intersect(g1, g2):
+ if not g2:
+ return all(c == '*' for c in g1)
+ if not g1:
+ return all(c == '*' for c in g2)
+ c1, *t1 = g1
+ c2, *t2 = g2
+ if c1 == '*':
+ return glob_intersect(g1, t2) or glob_intersect(t1, g2)
+ if c2 == '*':
+ return glob_intersect(t1, g2) or glob_intersect(g1, t2)
+ return c1 == c2 and glob_intersect(t1, t2)
+
+def add_parent_to_globs(parent, globs):
+ if not parent: return
+ for owners in owners_data:
+ if owners.dir == parent:
+ for directive in owners.directives:
+ for dglob in directive.globs or ['*']:
+ for gglob, glob in globs.items():
+ if glob_intersect(dglob, gglob):
+ if directive.who not in glob:
+ glob.append(directive.who)
+ add_parent_to_globs(owners.parent, globs)
+ return
+ assert(False)
+
+todo = owners_data.copy()
+done = set()
+with open(args.out, 'w') as out:
+ out.write('# Auto-generated by the tools/mkowners/mkowners.py tool\n')
+ out.write('# Uses OWNERS files in different modules throughout the\n')
+ out.write('# repository as the source of truth for module ownership.\n')
+ while todo:
+ head, *todo = todo
+ if head.parent and not head.parent in done:
+ todo.append(head)
+ continue
+ globs = collections.OrderedDict()
+ for directive in head.directives:
+ for glob in directive.globs or ['*']:
+ if glob not in globs:
+ globs[glob] = []
+ globs[glob].append(directive.who)
+ add_parent_to_globs(head.parent, globs)
+ for glob, owners in globs.items():
+ out.write('%s %s\n' % (
+ os.path.join(head.dir, glob) if head.dir != '.' else glob,
+ ' '.join(owners)))
+ done.add(head.dir)

tools/run_tests/OWNERS

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+@matt-kwong
+@jtattermusch
+@nicolasnoble
+

tools/run_tests/sanity/check_owners.sh

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+#!/bin/sh
+
+# Copyright 2017, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+# * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+set -e
+
+export TEST=true
+
+cd `dirname $0`/../../..
+
+owners=.github/CODEOWNERS
+want_owners=`mktemp /tmp/submXXXXXX`
+
+tools/mkowners/mkowners.py -o $want_owners
+diff -u $owners $want_owners
+
+rm $want_owners

tools/run_tests/sanity/sanity_tests.yaml

@@ -1,5 +1,6 @@
 # a set of tests that are run in parallel for sanity tests
 - script: tools/run_tests/sanity/check_cache_mk.sh
+- script: tools/run_tests/sanity/check_owners.sh
 - script: tools/run_tests/sanity/check_sources_and_headers.py
 - script: tools/run_tests/sanity/check_submodules.sh
 - script: tools/run_tests/sanity/check_test_filtering.py