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#!/usr/bin/env python
# Copyright 2015 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import json
import multiprocessing
import os
import platform
import sys
import common
def is_linux():
return sys.platform.startswith('linux')
def get_free_disk_space(failures):
"""Returns the amount of free space on the current disk, in GiB.
Returns:
The amount of free space on the current disk, measured in GiB.
"""
if os.name == 'posix':
# Stat the current path for info on the current disk.
stat_result = os.statvfs('.')
# Multiply block size by number of free blocks, express in GiB.
return stat_result.f_frsize * stat_result.f_bavail / (1024.0**3)
failures.append('get_free_disk_space: OS %s not supported.' % os.name)
return 0
def get_num_cpus(failures):
"""Returns the number of logical CPUs on this machine.
Returns:
The number of logical CPUs on this machine, or 'unknown' if indeterminate.
"""
try:
return multiprocessing.cpu_count()
except NotImplementedError:
failures.append('get_num_cpus')
return 'unknown'
def get_device_info(args, failures):
"""Parses the device info for each attached device, and returns a summary
of the device info and any mismatches.
Returns:
A dict indicating the result.
"""
if not is_linux():
return {}
with common.temporary_file() as tempfile_path:
test_cmd = [
sys.executable,
os.path.join(args.paths['checkout'], 'third_party', 'catapult', 'devil',
'devil', 'android', 'tools', 'device_status.py'),
'--json-output', tempfile_path, '--denylist-file',
os.path.join(args.paths['checkout'], 'out', 'bad_devices.json')
]
if args.args:
test_cmd.extend(args.args)
rc = common.run_command(test_cmd)
if rc:
failures.append('device_status')
return {}
with open(tempfile_path, 'r') as src:
device_info = json.load(src)
results = {}
results['devices'] = sorted(v['serial'] for v in device_info)
details = [
v['ro.build.fingerprint'] for v in device_info if not v['denylisted']
]
def unique_build_details(index):
return sorted(list({v.split(':')[index] for v in details}))
parsed_details = {
'device_names': unique_build_details(0),
'build_versions': unique_build_details(1),
'build_types': unique_build_details(2),
}
for k, v in parsed_details.items():
if len(v) == 1:
results[k] = v[0]
else:
results[k] = 'MISMATCH'
results['%s_list' % k] = v
failures.append(k)
for v in device_info:
if v['denylisted']:
failures.append('Device %s denylisted' % v['serial'])
return results
def main_run(args):
failures = []
host_info = {}
host_info['os_system'] = platform.system()
host_info['os_release'] = platform.release()
host_info['processor'] = platform.processor()
host_info['num_cpus'] = get_num_cpus(failures)
host_info['free_disk_space'] = get_free_disk_space(failures)
host_info['python_version'] = platform.python_version()
host_info['python_path'] = sys.executable
host_info['devices'] = get_device_info(args, failures)
json.dump({
'valid': True,
'failures': failures,
'_host_info': host_info,
}, args.output)
if len(failures) != 0:
return common.INFRA_FAILURE_EXIT_CODE
return 0
def main_compile_targets(args):
json.dump([], args.output)
if __name__ == '__main__':
funcs = {
'run': main_run,
'compile_targets': main_compile_targets,
}
sys.exit(common.run_script(sys.argv[1:], funcs))
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