recipe_modules/build/api.py - infra/recipes - Git at Google

 # Copyright 2021 The Pigweed Authors
 #
 # 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
 #
 #     https://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.
 """Calls to build code."""

 from recipe_engine import recipe_api


 class BuildApi(recipe_api.RecipeApi):
     """Calls to build code."""

     CAS_DIGEST_PROPERTY_NAME = 'cas_build_digest'

     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self.dir = None

     def initialize(self):
         self.dir = self.m.path['start_dir'].join('build')

     def gn_gen(self, checkout_dir, options):
         cmd = ['gn', 'gen']

         for gn_arg in options.gn_args:
             cmd.append('--args={}'.format(gn_arg))

         # Infrequently needed but harmless to always add this.
         cmd.append('--export-compile-commands')

         cmd.append(self.dir)

         with self.m.context(cwd=checkout_dir):
             self.m.step('gn gen', cmd)

     def get_gn_args(self, checkout_root=None, test_data=None):
         context_kwargs = {'cwd': checkout_root} if checkout_root else {}
         with self.m.context(**context_kwargs):
             cmd = ['gn', 'args', self.dir, '--list', '--json']
             args = self.m.step(
                 'all gn args',
                 cmd,
                 stdout=self.m.json.output(),
                 step_test_data=lambda: self.m.json.test_api.output_stream(
                     test_data or []
                 ),
             ).stdout
             return {x['name']: x for x in args or ()}

     def ninja(self, options):
         cmd = ['ninja', '-C', self.dir]
         cmd.extend(options.ninja_targets)
         with self.m.default_timeout():
             self.m.step('ninja', cmd)

     def __call__(self, checkout_dir, options):
         self.gn_gen(checkout_dir, options)
         self.ninja(options)

     def archive_to_cas(self):
         # TODO(b/234879756) Only archive necessary files.
         with self.m.step.nest('archive to cas') as pres:
             digest = self.m.cas.archive('archive', self.dir, self.dir)
             pres.properties[self.CAS_DIGEST_PROPERTY_NAME] = digest

     def download_from_cas(self, digest):
         return self.m.cas.download('download from cas', digest, self.dir)

     def log_longest_build_steps(self, ninja_log):
         """Parse the build log and log the longest-running build steps."""
         steps = []
         for line in ninja_log.splitlines():
             try:
                 start_ms, end_ms, _, name, _ = line.split()
                 duration = (int(end_ms) - int(start_ms)) / 1000.0
                 steps.append((duration, name))
             except (ValueError, TypeError):
                 # This processing is best-effort and should never be the cause
                 # of a build failure. In case there's something wrong with this
                 # logfile silently ignore the error--in that case it's very
                 # likely something else also went wrong and that should be the
                 # error presented to the user.
                 pass

         steps.sort(reverse=True)

         if steps:
             with self.m.step.nest('longest build steps'):
                 for dur, name in steps[0:10]:
                     with self.m.step.nest(name) as pres:
                         pres.step_summary_text = '{:.1f}s'.format(dur)

     def save_logs(self, build_dir=None, export_dir=None, pres=None):
         """Save common build logs from the build directory.

         Read common build logs so they appear in logdog and if export_dir is
         set copy these logs there. If there's a ninja log call
         log_longest_build_steps() on it.
         """

         if build_dir is None:
             build_dir = self.dir

         globs = [
             '*.gn',
             '*.log',
             '*.json',
             '*.compdb',
             '*.graph',
             '*_log',
         ]
         self.m.path.mock_add_file(build_dir.join('.ninja_log'))
         self.m.path.mock_add_file(build_dir.join('failure-summary.log'))
         self.m.path.mock_add_file(build_dir.join('links.json'))

         found_files = []

         with self.m.step.nest('logs'):
             with self.m.step.nest('glob'):
                 for glob in globs:
                     test_data = []
                     if glob == '*.log':
                         test_data = [
                             '.ninja_log',
                             'failure-summary.log',
                             'links.json',
                         ]

                     found_files.extend(
                         self.m.file.glob_paths(
                             glob,
                             build_dir,
                             glob,
                             include_hidden=True,
                             test_data=test_data,
                         )
                     )

             # Read these files and discard them so contents will be in logdog.
             ninja_log = None
             failure_summary_log = None
             for path in sorted(found_files):
                 if not self.m.path.isfile(path):
                     continue  # pragma: no cover
                 name = self.m.path.basename(path)

                 test_data = ''
                 if name == '.ninja_log':
                     test_data = (
                         '2000 5000 0 medium 0\n'
                         '3000 8000 0 long 0\n'
                         'malformed line\n'
                         '4000 5000 0 short 0\n'
                         '5000 x 0 malformed-end-time 0\n'
                     )

                 elif name == 'failure-summary.log':
                     test_data = '[5/10] foo.c\nerror: ???\n'

                 elif name == 'links.json':
                     test_data = [
                         {'description': 'description', 'url': 'https://url',},
                     ]

                 # No need to defer results here, but since some callers will be
                 # deferring results and others won't this makes it so we always
                 # need to call .get_result().
                 with self.m.step.defer_results():
                     if name.endswith('.json'):
                         contents = self.m.file.read_json(
                             name, path, test_data=test_data
                         )
                     else:
                         contents = self.m.file.read_text(
                             name, path, test_data=test_data
                         )

                     # 'ninja.log' won't show up except in projects that haven't
                     # rolled pwrev/114792.
                     # TODO(mohrr) Remove ninja.log reference.
                     if name in ('.ninja_log', 'ninja.log'):
                         ninja_log = contents.get_result()
                     elif name in (
                         'failure-summary.log',
                         'ninja-failure-summary.log',
                     ):
                         failure_summary_log = contents.get_result()
                     elif name == 'links.json':
                         if pres:
                             for entry in contents.get_result():
                                 pres.links[entry['description']] = entry['url']

         if failure_summary_log:
             with self.m.step.nest('failure summary') as fail_pres:
                 fail_pres.step_summary_text = self.m.buildbucket_util.summary_message(
                     failure_summary_log,
                     '(truncated, see "full contents" for details)',
                 )
                 fail_pres.status = 'FAILURE'
                 fail_pres.logs['full contents'] = failure_summary_log

         if ninja_log:
             self.log_longest_build_steps(ninja_log)

         if export_dir and found_files:
             log_dir = export_dir.join('build_logs')
             self.m.file.ensure_directory('mkdir build_logs', log_dir)
             with self.m.step.nest('copy'):
                 for path in found_files:
                     name = self.m.path.basename(path)
                     self.m.file.copy(name, path, log_dir.join(name))
	# Copyright 2021 The Pigweed Authors
	#
	# 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
	#
	# https://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.
	"""Calls to build code."""

	from recipe_engine import recipe_api


	class BuildApi(recipe_api.RecipeApi):
	"""Calls to build code."""

	CAS_DIGEST_PROPERTY_NAME = 'cas_build_digest'

	def __init__(self, args, *kwargs):
	super().__init__(args, *kwargs)
	self.dir = None

	def initialize(self):
	self.dir = self.m.path['start_dir'].join('build')

	def gn_gen(self, checkout_dir, options):
	cmd = ['gn', 'gen']

	for gn_arg in options.gn_args:
	cmd.append('--args={}'.format(gn_arg))

	# Infrequently needed but harmless to always add this.
	cmd.append('--export-compile-commands')

	cmd.append(self.dir)

	with self.m.context(cwd=checkout_dir):
	self.m.step('gn gen', cmd)

	def get_gn_args(self, checkout_root=None, test_data=None):
	context_kwargs = {'cwd': checkout_root} if checkout_root else {}
	with self.m.context(**context_kwargs):
	cmd = ['gn', 'args', self.dir, '--list', '--json']
	args = self.m.step(
	'all gn args',
	cmd,
	stdout=self.m.json.output(),
	step_test_data=lambda: self.m.json.test_api.output_stream(
	test_data or []
	),
	).stdout
	return {x['name']: x for x in args or ()}

	def ninja(self, options):
	cmd = ['ninja', '-C', self.dir]
	cmd.extend(options.ninja_targets)
	with self.m.default_timeout():
	self.m.step('ninja', cmd)

	def __call__(self, checkout_dir, options):
	self.gn_gen(checkout_dir, options)
	self.ninja(options)

	def archive_to_cas(self):
	# TODO(b/234879756) Only archive necessary files.
	with self.m.step.nest('archive to cas') as pres:
	digest = self.m.cas.archive('archive', self.dir, self.dir)
	pres.properties[self.CAS_DIGEST_PROPERTY_NAME] = digest

	def download_from_cas(self, digest):
	return self.m.cas.download('download from cas', digest, self.dir)

	def log_longest_build_steps(self, ninja_log):
	"""Parse the build log and log the longest-running build steps."""
	steps = []
	for line in ninja_log.splitlines():
	try:
	start_ms, end_ms, _, name, _ = line.split()
	duration = (int(end_ms) - int(start_ms)) / 1000.0
	steps.append((duration, name))
	except (ValueError, TypeError):
	# This processing is best-effort and should never be the cause
	# of a build failure. In case there's something wrong with this
	# logfile silently ignore the error--in that case it's very
	# likely something else also went wrong and that should be the
	# error presented to the user.
	pass

	steps.sort(reverse=True)

	if steps:
	with self.m.step.nest('longest build steps'):
	for dur, name in steps[0:10]:
	with self.m.step.nest(name) as pres:
	pres.step_summary_text = '{:.1f}s'.format(dur)

	def save_logs(self, build_dir=None, export_dir=None, pres=None):
	"""Save common build logs from the build directory.

	Read common build logs so they appear in logdog and if export_dir is
	set copy these logs there. If there's a ninja log call
	log_longest_build_steps() on it.
	"""

	if build_dir is None:
	build_dir = self.dir

	globs = [
	'*.gn',
	'*.log',
	'*.json',
	'*.compdb',
	'*.graph',
	'*_log',
	]
	self.m.path.mock_add_file(build_dir.join('.ninja_log'))
	self.m.path.mock_add_file(build_dir.join('failure-summary.log'))
	self.m.path.mock_add_file(build_dir.join('links.json'))

	found_files = []

	with self.m.step.nest('logs'):
	with self.m.step.nest('glob'):
	for glob in globs:
	test_data = []
	if glob == '*.log':
	test_data = [
	'.ninja_log',
	'failure-summary.log',
	'links.json',
	]

	found_files.extend(
	self.m.file.glob_paths(
	glob,
	build_dir,
	glob,
	include_hidden=True,
	test_data=test_data,
	)
	)

	# Read these files and discard them so contents will be in logdog.
	ninja_log = None
	failure_summary_log = None
	for path in sorted(found_files):
	if not self.m.path.isfile(path):
	continue # pragma: no cover
	name = self.m.path.basename(path)

	test_data = ''
	if name == '.ninja_log':
	test_data = (
	'2000 5000 0 medium 0\n'
	'3000 8000 0 long 0\n'
	'malformed line\n'
	'4000 5000 0 short 0\n'
	'5000 x 0 malformed-end-time 0\n'
	)

	elif name == 'failure-summary.log':
	test_data = '[5/10] foo.c\nerror: ???\n'

	elif name == 'links.json':
	test_data = [
	{'description': 'description', 'url': 'https://url',},
	]

	# No need to defer results here, but since some callers will be
	# deferring results and others won't this makes it so we always
	# need to call .get_result().
	with self.m.step.defer_results():
	if name.endswith('.json'):
	contents = self.m.file.read_json(
	name, path, test_data=test_data
	)
	else:
	contents = self.m.file.read_text(
	name, path, test_data=test_data
	)

	# 'ninja.log' won't show up except in projects that haven't
	# rolled pwrev/114792.
	# TODO(mohrr) Remove ninja.log reference.
	if name in ('.ninja_log', 'ninja.log'):
	ninja_log = contents.get_result()
	elif name in (
	'failure-summary.log',
	'ninja-failure-summary.log',
	):
	failure_summary_log = contents.get_result()
	elif name == 'links.json':
	if pres:
	for entry in contents.get_result():
	pres.links[entry['description']] = entry['url']

	if failure_summary_log:
	with self.m.step.nest('failure summary') as fail_pres:
	fail_pres.step_summary_text = self.m.buildbucket_util.summary_message(
	failure_summary_log,
	'(truncated, see "full contents" for details)',
	)
	fail_pres.status = 'FAILURE'
	fail_pres.logs['full contents'] = failure_summary_log

	if ninja_log:
	self.log_longest_build_steps(ninja_log)

	if export_dir and found_files:
	log_dir = export_dir.join('build_logs')
	self.m.file.ensure_directory('mkdir build_logs', log_dir)
	with self.m.step.nest('copy'):
	for path in found_files:
	name = self.m.path.basename(path)
	self.m.file.copy(name, path, log_dir.join(name))