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99 lines
3.6 KiB
Python
99 lines
3.6 KiB
Python
#!/usr/bin/env python3
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at https://mozilla.org/MPL/2.0/.
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"""
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A script to set up startup profiling with the Firefox Profiler. See
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https://profiler.firefox.com/docs/#/./guide-remote-profiling?id=startup-profiling
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for more information.
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"""
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import argparse
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import os
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import tempfile
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from subprocess import run
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PATH_PREFIX = '/data/local/tmp'
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PROD_FENIX = 'fenix'
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PROD_GVE = 'geckoview_example'
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PRODUCTS = [PROD_FENIX, PROD_GVE]
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GV_CONFIG = b'''env:
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MOZ_PROFILER_STARTUP: 1
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MOZ_PROFILER_STARTUP_INTERVAL: 5
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MOZ_PROFILER_STARTUP_FEATURES: js,stackwalk,leaf,screenshots,ipcmessages,java,cpu
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MOZ_PROFILER_STARTUP_FILTERS: GeckoMain,Compositor,Renderer,IPDL Background
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'''
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def parse_args():
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p = argparse.ArgumentParser(
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description=("Easily enable start up profiling using the Firefox Profiler. Finish capturing the profile in "
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"about:debugging on desktop. See "
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"https://profiler.firefox.com/docs/#/./guide-remote-profiling?id=startup-profiling for "
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"details."))
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p.add_argument('command', choices=['activate', 'deactivate'], help=("whether to activate or deactive start up "
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"profiling for the given release channel"))
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p.add_argument('release_channel', choices=['nightly', 'beta', 'release', 'debug'], help=("the release channel to "
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"change the startup profiling state of the command on"))
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p.add_argument('-p', '--product', choices=PRODUCTS, default=PROD_FENIX, help="which product to work on")
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return p.parse_args()
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def push(id, filename):
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config = tempfile.NamedTemporaryFile(delete=False)
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try:
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# I think the file needs to be closed to save its contents for adb push to
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# work correctly so we close it here and later delete it manually.
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with config.file as f:
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f.write(GV_CONFIG)
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print('Pushing {} to device.'.format(filename))
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run(['adb', 'push', config.name, os.path.join(PATH_PREFIX, filename)])
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run(['adb', 'shell', 'am', 'set-debug-app', '--persistent', id])
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print('\nStartup profiling enabled on all future start ups, possibly even after reinstall.')
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print('Call script with `deactivate` to disable it.')
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print('DISABLE \'Remote debugging via USB\' IN THE APP SETTINGS BEFORE STARTING THE APP & RE-ENABLE TO CAPTURE THE PROFILE.',
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'This avoids the additional overhead added when \'Remote debugging via USB\' is enabled during start up.',
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sep=os.linesep)
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finally:
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os.remove(config.name)
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def remove(filename):
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print('Removing {} from device.'.format(filename))
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run(['adb', 'shell', 'rm', PATH_PREFIX + '/' + filename])
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run(['adb', 'shell', 'am', 'clear-debug-app'])
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def convert_channel_to_id(product, channel):
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if product == PROD_FENIX:
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mapping = {
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'release': 'org.mozilla.firefox',
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'beta': 'org.mozilla.firefox_beta',
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'nightly': 'org.mozilla.fenix',
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'debug': 'org.mozilla.fenix.debug'
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}
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return mapping[channel]
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elif product == PROD_GVE:
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return 'org.mozilla.geckoview_example'
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def main():
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args = parse_args()
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id = convert_channel_to_id(args.product, args.release_channel)
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filename = id + '-geckoview-config.yaml'
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if args.command == 'activate':
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push(id, filename)
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elif args.command == 'deactivate':
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remove(filename)
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if __name__ == '__main__':
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main()
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