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1#!/usr/bin/env python3
2# Copyright (C) 2021 The Android Open Source Project
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#      http://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15
16# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
17# DO NOT EDIT. Auto-generated by tools/gen_amalgamated_python_tools
18# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
19
20# This file should do the same thing when being invoked in any of these ways:
21# ./trace_processor
22# python trace_processor
23# bash trace_processor
24# cat ./trace_processor | bash
25# cat ./trace_processor | python -
26
27BASH_FALLBACK=""" "
28exec python3 - "$@" <<'#'EOF
29#"""  # yapf: disable
30
31
32# ----- Amalgamator: begin of python/perfetto/prebuilts/manifests/trace_processor_shell.py
33# This file has been generated by: /Users/hjd/src/perfetto/tools/roll-prebuilts v34.0
34TRACE_PROCESSOR_SHELL_MANIFEST = [{
35    'arch':
36        'mac-amd64',
37    'file_name':
38        'trace_processor_shell',
39    'file_size':
40        8714576,
41    'url':
42        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v34.0/mac-amd64/trace_processor_shell',
43    'sha256':
44        '9bdb89493f0f00db5d3a73166450ac2f6ee830de16415e79c5a0234990caa644',
45    'platform':
46        'darwin',
47    'machine': ['x86_64']
48}, {
49    'arch':
50        'mac-arm64',
51    'file_name':
52        'trace_processor_shell',
53    'file_size':
54        7286968,
55    'url':
56        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v34.0/mac-arm64/trace_processor_shell',
57    'sha256':
58        '948536035fbe680b47b94a99d320ff459450738e4aeeb16cef18364f0023622b',
59    'platform':
60        'darwin',
61    'machine': ['arm64']
62}, {
63    'arch':
64        'linux-amd64',
65    'file_name':
66        'trace_processor_shell',
67    'file_size':
68        8576688,
69    'url':
70        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v34.0/linux-amd64/trace_processor_shell',
71    'sha256':
72        '493698c81fffcabc340c72831b175962dba5a31dfe8572a6d5af083a116af4f8',
73    'platform':
74        'linux',
75    'machine': ['x86_64']
76}, {
77    'arch':
78        'linux-arm',
79    'file_name':
80        'trace_processor_shell',
81    'file_size':
82        6125384,
83    'url':
84        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v34.0/linux-arm/trace_processor_shell',
85    'sha256':
86        '53f1e27603695cf92d22519993b6eafa9c60957d9cb33bd0b300df8573b87ebb',
87    'platform':
88        'linux',
89    'machine': ['armv6l', 'armv7l', 'armv8l']
90}, {
91    'arch':
92        'linux-arm64',
93    'file_name':
94        'trace_processor_shell',
95    'file_size':
96        8036288,
97    'url':
98        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v34.0/linux-arm64/trace_processor_shell',
99    'sha256':
100        '2a2cda222c9d5e18b638057688babb00a3a975ccd4b7dd65f26211c2cb7767f9',
101    'platform':
102        'linux',
103    'machine': ['aarch64']
104}, {
105    'arch':
106        'android-arm',
107    'file_name':
108        'trace_processor_shell',
109    'file_size':
110        5813384,
111    'url':
112        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v34.0/android-arm/trace_processor_shell',
113    'sha256':
114        'f3ec4c194d0b06af5b296c1c479e6b29090e6b7cc7e58fbd55ca2919a126f0ee'
115}, {
116    'arch':
117        'android-arm64',
118    'file_name':
119        'trace_processor_shell',
120    'file_size':
121        7294768,
122    'url':
123        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v34.0/android-arm64/trace_processor_shell',
124    'sha256':
125        'f44f47d4b873ec68b6fa4f4c69a3e5a13d58b4d9cb2ec591fa687d4480c1950b'
126}, {
127    'arch':
128        'android-x86',
129    'file_name':
130        'trace_processor_shell',
131    'file_size':
132        8090716,
133    'url':
134        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v34.0/android-x86/trace_processor_shell',
135    'sha256':
136        '5636d8251747376787640bc3a4894ecf3091e4bf3d38b007003e1992fc5792df'
137}, {
138    'arch':
139        'android-x64',
140    'file_name':
141        'trace_processor_shell',
142    'file_size':
143        8359784,
144    'url':
145        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v34.0/android-x64/trace_processor_shell',
146    'sha256':
147        '50440fa055ab998f6cf24f9a9a7388520cc854708735521505e10291bc52f3d0'
148}, {
149    'arch':
150        'windows-amd64',
151    'file_name':
152        'trace_processor_shell.exe',
153    'file_size':
154        8130560,
155    'url':
156        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v34.0/windows-amd64/trace_processor_shell.exe',
157    'sha256':
158        '5cbcf98e29a2d989523235e11e4e0dade692a295ebf47a6c93a09a050ce9bc91',
159    'platform':
160        'win32',
161    'machine': ['amd64']
162}]
163
164# ----- Amalgamator: end of python/perfetto/prebuilts/manifests/trace_processor_shell.py
165
166# ----- Amalgamator: begin of python/perfetto/prebuilts/perfetto_prebuilts.py
167# Copyright (C) 2021 The Android Open Source Project
168#
169# Licensed under the Apache License, Version 2.0 (the "License");
170# you may not use this file except in compliance with the License.
171# You may obtain a copy of the License at
172#
173#      http://www.apache.org/licenses/LICENSE-2.0
174#
175# Unless required by applicable law or agreed to in writing, software
176# distributed under the License is distributed on an "AS IS" BASIS,
177# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
178# See the License for the specific language governing permissions and
179# limitations under the License.
180"""
181Functions to fetch pre-pinned Perfetto prebuilts.
182
183This function is used in different places:
184- Into the //tools/{trace_processor, traceconv} scripts, which are just plain
185  wrappers around executables.
186- Into the //tools/{heap_profiler, record_android_trace} scripts, which contain
187  some other hand-written python code.
188
189The manifest argument looks as follows:
190TRACECONV_MANIFEST = [
191  {
192    'arch': 'mac-amd64',
193    'file_name': 'traceconv',
194    'file_size': 7087080,
195    'url': https://commondatastorage.googleapis.com/.../trace_to_text',
196    'sha256': 7d957c005b0dc130f5bd855d6cec27e060d38841b320d04840afc569f9087490',
197    'platform': 'darwin',
198    'machine': 'x86_64'
199  },
200  ...
201]
202
203The intended usage is:
204
205  from perfetto.prebuilts.manifests.traceconv import TRACECONV_MANIFEST
206  bin_path = get_perfetto_prebuilt(TRACECONV_MANIFEST)
207  subprocess.call(bin_path, ...)
208"""
209
210import hashlib
211import os
212import platform
213import subprocess
214import sys
215
216
217def download_or_get_cached(file_name, url, sha256):
218  """ Downloads a prebuilt or returns a cached version
219
220  The first time this is invoked, it downloads the |url| and caches it into
221  ~/.local/share/perfetto/prebuilts/$tool_name. On subsequent invocations it
222  just runs the cached version.
223  """
224  dir = os.path.join(
225      os.path.expanduser('~'), '.local', 'share', 'perfetto', 'prebuilts')
226  os.makedirs(dir, exist_ok=True)
227  bin_path = os.path.join(dir, file_name)
228  sha256_path = os.path.join(dir, file_name + '.sha256')
229  needs_download = True
230
231  # Avoid recomputing the SHA-256 on each invocation. The SHA-256 of the last
232  # download is cached into file_name.sha256, just check if that matches.
233  if os.path.exists(bin_path) and os.path.exists(sha256_path):
234    with open(sha256_path, 'rb') as f:
235      digest = f.read().decode()
236      if digest == sha256:
237        needs_download = False
238
239  if needs_download:
240    # Either the filed doesn't exist or the SHA256 doesn't match.
241    tmp_path = bin_path + '.tmp'
242    print('Downloading ' + url)
243    subprocess.check_call(['curl', '-f', '-L', '-#', '-o', tmp_path, url])
244    with open(tmp_path, 'rb') as fd:
245      actual_sha256 = hashlib.sha256(fd.read()).hexdigest()
246    if actual_sha256 != sha256:
247      raise Exception('Checksum mismatch for %s (actual: %s, expected: %s)' %
248                      (url, actual_sha256, sha256))
249    os.chmod(tmp_path, 0o755)
250    os.replace(tmp_path, bin_path)
251    with open(sha256_path, 'w') as f:
252      f.write(sha256)
253  return bin_path
254
255
256def get_perfetto_prebuilt(manifest, soft_fail=False, arch=None):
257  """ Downloads the prebuilt, if necessary, and returns its path on disk. """
258  plat = sys.platform.lower()
259  machine = platform.machine().lower()
260  manifest_entry = None
261  for entry in manifest:
262    # If the caller overrides the arch, just match that (for Android prebuilts).
263    if arch:
264      if entry.get('arch') == arch:
265        manifest_entry = entry
266        break
267      continue
268    # Otherwise guess the local machine arch.
269    if entry.get('platform') == plat and machine in entry.get('machine', []):
270      manifest_entry = entry
271      break
272  if manifest_entry is None:
273    if soft_fail:
274      return None
275    raise Exception(
276        ('No prebuilts available for %s-%s\n' % (plat, machine)) +
277        'See https://perfetto.dev/docs/contributing/build-instructions')
278
279  return download_or_get_cached(
280      file_name=manifest_entry['file_name'],
281      url=manifest_entry['url'],
282      sha256=manifest_entry['sha256'])
283
284
285def run_perfetto_prebuilt(manifest):
286  bin_path = get_perfetto_prebuilt(manifest)
287  if sys.platform.lower() == 'win32':
288    sys.exit(subprocess.check_call([bin_path, *sys.argv[1:]]))
289  os.execv(bin_path, [bin_path] + sys.argv[1:])
290
291# ----- Amalgamator: end of python/perfetto/prebuilts/perfetto_prebuilts.py
292
293if __name__ == '__main__':
294  run_perfetto_prebuilt(TRACE_PROCESSOR_SHELL_MANIFEST)
295
296#EOF
297