1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
#!/usr/bin/env python
# Copyright 2017 The Glslang Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Get source files for Glslang and its dependencies from public repositories.
"""
from __future__ import print_function
import argparse
import json
import distutils.dir_util
import os.path
import subprocess
import sys
KNOWN_GOOD_FILE = 'known_good.json'
SITE_TO_KNOWN_GOOD_FILE = { 'github' : 'known_good.json',
'gitlab' : 'known_good_khr.json' }
# Maps a site name to its hostname.
SITE_TO_HOST = { 'github' : 'https://github.com/',
'gitlab' : 'git@gitlab.khronos.org:' }
VERBOSE = True
def command_output(cmd, directory, fail_ok=False):
"""Runs a command in a directory and returns its standard output stream.
Captures the standard error stream.
Raises a RuntimeError if the command fails to launch or otherwise fails.
"""
if VERBOSE:
print('In {d}: {cmd}'.format(d=directory, cmd=cmd))
p = subprocess.Popen(cmd,
cwd=directory,
stdout=subprocess.PIPE)
(stdout, _) = p.communicate()
if p.returncode != 0 and not fail_ok:
raise RuntimeError('Failed to run {} in {}'.format(cmd, directory))
if VERBOSE:
print(stdout)
return stdout
def command_retval(cmd, directory):
"""Runs a command in a directory and returns its return value.
Captures the standard error stream.
"""
p = subprocess.Popen(cmd,
cwd=directory,
stdout=subprocess.PIPE)
p.communicate()
return p.returncode
class GoodCommit(object):
"""Represents a good commit for a repository."""
def __init__(self, json):
"""Initializes this good commit object.
Args:
'json': A fully populated JSON object describing the commit.
"""
self._json = json
self.name = json['name']
self.site = json['site']
self.subrepo = json['subrepo']
self.subdir = json['subdir'] if ('subdir' in json) else '.'
self.commit = json['commit']
def GetUrl(self):
"""Returns the URL for the repository."""
host = SITE_TO_HOST[self.site]
return '{host}{subrepo}'.format(
host=host,
subrepo=self.subrepo)
def AddRemote(self):
"""Add the remote 'known-good' if it does not exist."""
remotes = command_output(['git', 'remote'], self.subdir).splitlines()
if b'known-good' not in remotes:
command_output(['git', 'remote', 'add', 'known-good', self.GetUrl()], self.subdir)
def HasCommit(self):
"""Check if the repository contains the known-good commit."""
return 0 == subprocess.call(['git', 'rev-parse', '--verify', '--quiet',
self.commit + "^{commit}"],
cwd=self.subdir)
def Clone(self):
distutils.dir_util.mkpath(self.subdir)
command_output(['git', 'clone', self.GetUrl(), '.'], self.subdir)
def Fetch(self):
command_output(['git', 'fetch', 'known-good'], self.subdir)
def Checkout(self):
if not os.path.exists(os.path.join(self.subdir,'.git')):
self.Clone()
self.AddRemote()
if not self.HasCommit():
self.Fetch()
command_output(['git', 'checkout', self.commit], self.subdir)
def GetGoodCommits(site):
"""Returns the latest list of GoodCommit objects."""
known_good_file = SITE_TO_KNOWN_GOOD_FILE[site]
with open(known_good_file) as known_good:
return [GoodCommit(c) for c in json.loads(known_good.read())['commits']]
def main():
parser = argparse.ArgumentParser(description='Get Glslang source dependencies at a known-good commit')
parser.add_argument('--dir', dest='dir', default='.',
help="Set target directory for Glslang source root. Default is \'.\'.")
parser.add_argument('--site', dest='site', default='github',
help="Set git server site. Default is github.")
args = parser.parse_args()
commits = GetGoodCommits(args.site)
distutils.dir_util.mkpath(args.dir)
print('Change directory to {d}'.format(d=args.dir))
os.chdir(args.dir)
# Create the subdirectories in sorted order so that parent git repositories
# are created first.
for c in sorted(commits, key=lambda x: x.subdir):
print('Get {n}\n'.format(n=c.name))
c.Checkout()
sys.exit(0)
if __name__ == '__main__':
main()
|
