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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# ./tracebox
22# python tracebox
23# bash tracebox
24# cat ./tracebox | bash
25# cat ./tracebox | python -
26
27BASH_FALLBACK=""" "
28exec python3 - "$@" <<'#'EOF
29#"""  # yapf: disable
30
31
32# ----- Amalgamator: begin of python/perfetto/prebuilts/manifests/tracebox.py
33# This file has been generated by: tools/roll-prebuilts v49.0
34TRACEBOX_MANIFEST = [{
35    'arch':
36        'mac-amd64',
37    'file_name':
38        'tracebox',
39    'file_size':
40        1646808,
41    'url':
42        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v49.0/mac-amd64/tracebox',
43    'sha256':
44        '85b3060ed4d49e2c8d69dbb4d6ff26ab662f9b28c0032791674c90683dd33d39',
45    'platform':
46        'darwin',
47    'machine': ['x86_64']
48}, {
49    'arch':
50        'mac-arm64',
51    'file_name':
52        'tracebox',
53    'file_size':
54        1508856,
55    'url':
56        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v49.0/mac-arm64/tracebox',
57    'sha256':
58        'ea2cce845daf0eba469ff356b3bcefc8e9a384084569271a470b58a9dcbf8def',
59    'platform':
60        'darwin',
61    'machine': ['arm64']
62}, {
63    'arch':
64        'linux-amd64',
65    'file_name':
66        'tracebox',
67    'file_size':
68        2415168,
69    'url':
70        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v49.0/linux-amd64/tracebox',
71    'sha256':
72        '5361676fb3c2490ae2136ab7a37dcd9e4ee5a2a6c0ba722facf3215a23a8c633',
73    'platform':
74        'linux',
75    'machine': ['x86_64']
76}, {
77    'arch':
78        'linux-arm',
79    'file_name':
80        'tracebox',
81    'file_size':
82        1478024,
83    'url':
84        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v49.0/linux-arm/tracebox',
85    'sha256':
86        '18db321576be555d8c9281df9fc03aa6b3b4358ae2424ffbd65fc120cd650b8b',
87    'platform':
88        'linux',
89    'machine': ['armv6l', 'armv7l', 'armv8l']
90}, {
91    'arch':
92        'linux-arm64',
93    'file_name':
94        'tracebox',
95    'file_size':
96        2304384,
97    'url':
98        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v49.0/linux-arm64/tracebox',
99    'sha256':
100        '70c9e2b63eb92a82db65916c346b09867bfedc0c4593974c019102f485c0dc9d',
101    'platform':
102        'linux',
103    'machine': ['aarch64']
104}, {
105    'arch':
106        'android-arm',
107    'file_name':
108        'tracebox',
109    'file_size':
110        1354916,
111    'url':
112        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v49.0/android-arm/tracebox',
113    'sha256':
114        '724a1cb4774bdf8a64beb37194f7394df5a052c36369ea52f64fe519fcb40117'
115}, {
116    'arch':
117        'android-arm64',
118    'file_name':
119        'tracebox',
120    'file_size':
121        2142008,
122    'url':
123        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v49.0/android-arm64/tracebox',
124    'sha256':
125        '7616bfc3be1269c3ac1eec5a1f868fb65c2830ed001b5fbcc3800c909c676848'
126}, {
127    'arch':
128        'android-x86',
129    'file_name':
130        'tracebox',
131    'file_size':
132        2341884,
133    'url':
134        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v49.0/android-x86/tracebox',
135    'sha256':
136        '29124bee9bf4e2e296b0c96071b8c9706b57d963cbf0359d6afd95a9049b2b82'
137}, {
138    'arch':
139        'android-x64',
140    'file_name':
141        'tracebox',
142    'file_size':
143        2178416,
144    'url':
145        'https://commondatastorage.googleapis.com/perfetto-luci-artifacts/v49.0/android-x64/tracebox',
146    'sha256':
147        '826fffce1e138c1d5ac107492ee696c09ad83f9ae9aa647c810d71084f797509'
148}]
149
150# ----- Amalgamator: end of python/perfetto/prebuilts/manifests/tracebox.py
151
152# ----- Amalgamator: begin of python/perfetto/prebuilts/perfetto_prebuilts.py
153# Copyright (C) 2021 The Android Open Source Project
154#
155# Licensed under the Apache License, Version 2.0 (the "License");
156# you may not use this file except in compliance with the License.
157# You may obtain a copy of the License at
158#
159#      http://www.apache.org/licenses/LICENSE-2.0
160#
161# Unless required by applicable law or agreed to in writing, software
162# distributed under the License is distributed on an "AS IS" BASIS,
163# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
164# See the License for the specific language governing permissions and
165# limitations under the License.
166"""
167Functions to fetch pre-pinned Perfetto prebuilts.
168
169This function is used in different places:
170- Into the //tools/{trace_processor, traceconv} scripts, which are just plain
171  wrappers around executables.
172- Into the //tools/{heap_profiler, record_android_trace} scripts, which contain
173  some other hand-written python code.
174
175The manifest argument looks as follows:
176TRACECONV_MANIFEST = [
177  {
178    'arch': 'mac-amd64',
179    'file_name': 'traceconv',
180    'file_size': 7087080,
181    'url': https://commondatastorage.googleapis.com/.../trace_to_text',
182    'sha256': 7d957c005b0dc130f5bd855d6cec27e060d38841b320d04840afc569f9087490',
183    'platform': 'darwin',
184    'machine': 'x86_64'
185  },
186  ...
187]
188
189The intended usage is:
190
191  from perfetto.prebuilts.manifests.traceconv import TRACECONV_MANIFEST
192  bin_path = get_perfetto_prebuilt(TRACECONV_MANIFEST)
193  subprocess.call(bin_path, ...)
194"""
195
196import hashlib
197import os
198import platform
199import random
200import subprocess
201import sys
202
203
204def download_or_get_cached(file_name, url, sha256):
205  """ Downloads a prebuilt or returns a cached version
206
207  The first time this is invoked, it downloads the |url| and caches it into
208  ~/.local/share/perfetto/prebuilts/$tool_name. On subsequent invocations it
209  just runs the cached version.
210  """
211  dir = os.path.join(
212      os.path.expanduser('~'), '.local', 'share', 'perfetto', 'prebuilts')
213  os.makedirs(dir, exist_ok=True)
214  bin_path = os.path.join(dir, file_name)
215  sha256_path = os.path.join(dir, file_name + '.sha256')
216  needs_download = True
217
218  # Avoid recomputing the SHA-256 on each invocation. The SHA-256 of the last
219  # download is cached into file_name.sha256, just check if that matches.
220  if os.path.exists(bin_path) and os.path.exists(sha256_path):
221    with open(sha256_path, 'rb') as f:
222      digest = f.read().decode()
223      if digest == sha256:
224        needs_download = False
225
226  if needs_download:  # The file doesn't exist or the SHA256 doesn't match.
227    # Use a unique random file to guard against concurrent executions.
228    # See https://github.com/google/perfetto/issues/786 .
229    tmp_path = '%s.%d.tmp' % (bin_path, random.randint(0, 100000))
230    print('Downloading ' + url)
231    subprocess.check_call(['curl', '-f', '-L', '-#', '-o', tmp_path, url])
232    with open(tmp_path, 'rb') as fd:
233      actual_sha256 = hashlib.sha256(fd.read()).hexdigest()
234    if actual_sha256 != sha256:
235      raise Exception('Checksum mismatch for %s (actual: %s, expected: %s)' %
236                      (url, actual_sha256, sha256))
237    os.chmod(tmp_path, 0o755)
238    os.replace(tmp_path, bin_path)
239    with open(tmp_path, 'w') as f:
240      f.write(sha256)
241    os.replace(tmp_path, sha256_path)
242  return bin_path
243
244
245def get_perfetto_prebuilt(manifest, soft_fail=False, arch=None):
246  """ Downloads the prebuilt, if necessary, and returns its path on disk. """
247  plat = sys.platform.lower()
248  machine = platform.machine().lower()
249  manifest_entry = None
250  for entry in manifest:
251    # If the caller overrides the arch, just match that (for Android prebuilts).
252    if arch:
253      if entry.get('arch') == arch:
254        manifest_entry = entry
255        break
256      continue
257    # Otherwise guess the local machine arch.
258    if entry.get('platform') == plat and machine in entry.get('machine', []):
259      manifest_entry = entry
260      break
261  if manifest_entry is None:
262    if soft_fail:
263      return None
264    raise Exception(
265        ('No prebuilts available for %s-%s\n' % (plat, machine)) +
266        'See https://perfetto.dev/docs/contributing/build-instructions')
267
268  return download_or_get_cached(
269      file_name=manifest_entry['file_name'],
270      url=manifest_entry['url'],
271      sha256=manifest_entry['sha256'])
272
273
274def run_perfetto_prebuilt(manifest):
275  bin_path = get_perfetto_prebuilt(manifest)
276  if sys.platform.lower() == 'win32':
277    sys.exit(subprocess.check_call([bin_path, *sys.argv[1:]]))
278  os.execv(bin_path, [bin_path] + sys.argv[1:])
279
280# ----- Amalgamator: end of python/perfetto/prebuilts/perfetto_prebuilts.py
281
282if __name__ == '__main__':
283  run_perfetto_prebuilt(TRACEBOX_MANIFEST)
284
285#EOF
286