зеркало из https://github.com/mozilla/gecko-dev.git
125 строки
3.8 KiB
Bash
Executable File
125 строки
3.8 KiB
Bash
Executable File
#!/bin/sh
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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 http://mozilla.org/MPL/2.0/.
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# The beginning of this script is both valid POSIX shell and valid Python,
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# such that the script starts with the shell and is reexecuted with
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# the right Python.
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# Embeds a shell script inside a Python triple quote. This pattern is valid
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# shell because `''':'`, `':'` and `:` are all equivalent, and `:` is a no-op.
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''':'
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get_command() {
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# Parse the name of the mach command out of the arguments. This is necessary
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# in the presence of global mach arguments that come before the name of the
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# command, e.g. `mach -v build`. We dispatch to the correct Python
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# interpreter depending on the command.
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while true; do
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case $1 in
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-v|--verbose) shift;;
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-l|--log-file)
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if [ "$#" -lt 2 ]
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then
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echo
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break
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else
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shift 2
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fi
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;;
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--no-interactive) shift;;
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--log-interval) shift;;
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--log-no-times) shift;;
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-h) shift;;
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--debug-command) shift;;
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--profile-command)
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py_profile_command="1"
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shift;;
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--settings)
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if [ "$#" -lt 2 ]
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then
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echo
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break
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else
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shift 2
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fi
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;;
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"") echo; break;;
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*) echo $1; break;;
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esac
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done
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return ${py_profile_command}
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}
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command=$(get_command "$@")
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py_profile_command=$?
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if [ ${py_profile_command} -eq 0 ]
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then
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py_profile_command_args=""
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else
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# We would prefer to use an array variable here, but we're limited to POSIX.
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# None of our arguments have quoting or spaces so we can safely interpolate
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# a string instead.
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py_profile_command_args="-m cProfile -o mach_profile_${command}.cProfile"
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echo "Running with --profile-command. To visualize, use snakeviz:"
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echo "python3 -m pip install snakeviz"
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echo "python3 -m snakeviz mach_profile_${command}.cProfile"
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fi
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if command -v python3 > /dev/null
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then
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exec python3 $py_profile_command_args "$0" "$@"
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else
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echo "This mach command requires 'python3', which wasn't found on the system!"
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exit 1
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fi
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'''
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from __future__ import absolute_import, print_function, unicode_literals
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import os
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import sys
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def load_mach(dir_path, mach_path):
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import importlib.util
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spec = importlib.util.spec_from_file_location('mach_initialize', mach_path)
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mach_initialize = importlib.util.module_from_spec(spec)
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spec.loader.exec_module(mach_initialize)
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return mach_initialize.initialize(dir_path)
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def check_and_get_mach(dir_path):
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initialize_paths = (
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'build/mach_initialize.py',
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# test package initialize
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'tools/mach_initialize.py',
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)
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for initialize_path in initialize_paths:
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mach_path = os.path.join(dir_path, initialize_path)
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if os.path.isfile(mach_path):
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return load_mach(dir_path, mach_path)
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return None
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def main(args):
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# XCode python sets __PYVENV_LAUNCHER__, which overrides the executable
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# used when a python subprocess is created. This is an issue when we want
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# to run using our virtualenv python executables.
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# In future Python relases, __PYVENV_LAUNCHER__ will be cleared before
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# application code (mach) is started.
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# https://github.com/python/cpython/pull/9516
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os.environ.pop("__PYVENV_LAUNCHER__", None)
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mach = check_and_get_mach(os.path.dirname(os.path.realpath(__file__)))
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if not mach:
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print('Could not run mach: No mach source directory found.')
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sys.exit(1)
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sys.exit(mach.run(args))
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if __name__ == '__main__':
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main(sys.argv[1:])
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