1#!/usr/bin/env python3
2#
3# Copyright (C) 2016 The Android Open Source Project
4#
5# Licensed under the Apache License, Version 2.0 (the "License");
6# you may not use this file except in compliance with the License.
7# You may obtain a copy of the License at
8#
9#      http://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing, software
12# distributed under the License is distributed on an "AS IS" BASIS,
13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14# See the License for the specific language governing permissions and
15# limitations under the License.
16#
17"""Downloads simpleperf prebuilts from the build server."""
18import argparse
19import logging
20import os
21import shutil
22import stat
23import textwrap
24
25THIS_DIR = os.path.realpath(os.path.dirname(__file__))
26
27
28class InstallEntry(object):
29    def __init__(self, target, name, install_path, need_strip=False):
30        self.target = target
31        self.name = name
32        self.install_path = install_path
33        self.need_strip = need_strip
34
35
36MINGW = 'local:../../../../prebuilts/gcc/linux-x86/host/x86_64-w64-mingw32-4.8/x86_64-w64-mingw32/'
37INSTALL_LIST = [
38    # simpleperf on device.
39    InstallEntry('MODULES-IN-system-extras-simpleperf',
40                 'simpleperf/android/arm64/simpleperf_ndk64',
41                 'android/arm64/simpleperf'),
42    InstallEntry('MODULES-IN-system-extras-simpleperf',
43                 'simpleperf/android/arm/simpleperf_ndk',
44                 'android/arm/simpleperf'),
45    InstallEntry('MODULES-IN-system-extras-simpleperf_x86',
46                 'simpleperf/android/x86_64/simpleperf_ndk64',
47                 'android/x86_64/simpleperf'),
48    InstallEntry('MODULES-IN-system-extras-simpleperf_x86',
49                 'simpleperf/android/x86/simpleperf_ndk',
50                 'android/x86/simpleperf'),
51
52    # simpleperf on host.
53    InstallEntry('MODULES-IN-system-extras-simpleperf',
54                 'simpleperf/linux/x86_64/simpleperf_ndk64',
55                 'linux/x86_64/simpleperf', True),
56    InstallEntry('MODULES-IN-system-extras-simpleperf_mac',
57                 'simpleperf/darwin/x86_64/simpleperf_ndk64',
58                 'darwin/x86_64/simpleperf'),
59    InstallEntry('MODULES-IN-system-extras-simpleperf',
60                 'simpleperf/windows/x86_64/simpleperf_ndk64.exe',
61                 'windows/x86_64/simpleperf.exe', True),
62
63    # libsimpleperf_report.so on host
64    InstallEntry('MODULES-IN-system-extras-simpleperf',
65                 'simpleperf/linux/x86_64/libsimpleperf_report.so',
66                 'linux/x86_64/libsimpleperf_report.so', True),
67    InstallEntry('MODULES-IN-system-extras-simpleperf_mac',
68                 'simpleperf/darwin/x86_64/libsimpleperf_report.dylib',
69                 'darwin/x86_64/libsimpleperf_report.dylib'),
70    InstallEntry('MODULES-IN-system-extras-simpleperf',
71                 'simpleperf/windows/x86_64/libsimpleperf_report.dll',
72                 'windows/x86_64/libsimpleperf_report.dll', True),
73
74    # libwinpthread-1.dll on windows host
75    InstallEntry(MINGW + '/bin/libwinpthread-1.dll', 'libwinpthread-1.dll',
76                 'windows/x86_64/libwinpthread-1.dll', False),
77]
78
79
80def logger():
81    """Returns the main logger for this module."""
82    return logging.getLogger(__name__)
83
84
85def check_call(cmd):
86    """Proxy for subprocess.check_call with logging."""
87    import subprocess
88    logger().debug('check_call `%s`', ' '.join(cmd))
89    subprocess.check_call(cmd)
90
91
92def fetch_artifact(branch, build, target, name):
93    """Fetches and artifact from the build server."""
94    if target.startswith('local:'):
95        shutil.copyfile(target[6:], name)
96        return
97    logger().info('Fetching %s from %s %s (artifacts matching %s)', build,
98                  target, branch, name)
99    fetch_artifact_path = '/google/data/ro/projects/android/fetch_artifact'
100    cmd = [fetch_artifact_path, '--branch', branch, '--target', target,
101           '--bid', build, name]
102    check_call(cmd)
103
104
105def start_branch(build):
106    """Creates a new branch in the project."""
107    branch_name = 'update-' + (build or 'latest')
108    logger().info('Creating branch %s', branch_name)
109    check_call(['repo', 'start', branch_name, '.'])
110
111
112def commit(branch, build, add_paths):
113    """Commits the new prebuilts."""
114    logger().info('Making commit')
115    check_call(['git', 'add'] + add_paths)
116    message = textwrap.dedent("""\
117        simpleperf: update simpleperf prebuilts to build {build}.
118
119        Taken from branch {branch}.""").format(branch=branch, build=build)
120    check_call(['git', 'commit', '-m', message])
121
122
123def remove_old_release(install_dir):
124    """Removes the old prebuilts."""
125    if os.path.exists(install_dir):
126        logger().info('Removing old install directory "%s"', install_dir)
127        check_call(['git', 'rm', '-rf', '--ignore-unmatch', install_dir])
128
129    # Need to check again because git won't remove directories if they have
130    # non-git files in them.
131    if os.path.exists(install_dir):
132        shutil.rmtree(install_dir)
133
134
135def install_new_release(branch, build, install_dir):
136    """Installs the new release."""
137    for entry in INSTALL_LIST:
138        install_entry(branch, build, install_dir, entry)
139
140
141def install_entry(branch, build, install_dir, entry):
142    """Installs the device specific components of the release."""
143    target = entry.target
144    name = entry.name
145    install_path = os.path.join(install_dir, entry.install_path)
146    need_strip = entry.need_strip
147
148    fetch_artifact(branch, build, target, name)
149    name = os.path.basename(name)
150    exe_stat = os.stat(name)
151    os.chmod(name, exe_stat.st_mode | stat.S_IEXEC)
152    if need_strip:
153        check_call(['strip', name])
154    dirname = os.path.dirname(install_path)
155    if not os.path.isdir(dirname):
156        os.makedirs(dirname)
157    shutil.move(name, install_path)
158
159
160def get_args():
161    """Parses and returns command line arguments."""
162    parser = argparse.ArgumentParser()
163
164    parser.add_argument(
165        '-b', '--branch', default='aosp-simpleperf-release',
166        help='Branch to pull build from.')
167    parser.add_argument('--build', required=True, help='Build number to pull.')
168    parser.add_argument(
169        '--use-current-branch', action='store_true',
170        help='Perform the update in the current branch. Do not repo start.')
171    parser.add_argument(
172        '-v', '--verbose', action='count', default=0,
173        help='Increase output verbosity.')
174
175    return parser.parse_args()
176
177
178def main():
179    """Program entry point."""
180    os.chdir(THIS_DIR)
181
182    args = get_args()
183    verbose_map = (logging.WARNING, logging.INFO, logging.DEBUG)
184    verbosity = args.verbose
185    if verbosity > 2:
186        verbosity = 2
187    logging.basicConfig(level=verbose_map[verbosity])
188
189    install_dir = 'bin'
190
191    if not args.use_current_branch:
192        start_branch(args.build)
193    remove_old_release(install_dir)
194    install_new_release(args.branch, args.build, install_dir)
195    artifacts = [install_dir]
196    commit(args.branch, args.build, artifacts)
197
198
199if __name__ == '__main__':
200    main()
201