Mercurial > hg
view contrib/catapipe.py @ 39440:ab20ee07b82d
narrow: add '--import-rules' flag to tracked command
This patch adds a `--import-rules` flag to tracked command provided by narrow
extension. Using the --import-rules flag, you can pass a filename from which
narrowspecs should be read and added to main narrowspec.
A lot of times, in automation or manually also, when you are working with big
repo, specifying each path name on commandline using '--addinclude' and
'--addexclude' is tedious and something which can scale. So we needed something
where we can pass a file to extend the narrowspecs.
Nice thing about this is that the automations which reads some file to change
the sparse profile, can now read the same file for changing narrowspecs too.
Tests are added for the new feature.
Differential Revision: https://phab.mercurial-scm.org/D4125
author | Pulkit Goyal <pulkit@yandex-team.ru> |
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date | Mon, 06 Aug 2018 14:06:19 +0300 |
parents | 9a81f126f9fa |
children | e9706686451b |
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#!/usr/bin/env python3 # # Copyright 2018 Google LLC. # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. """Tool read primitive events from a pipe to produce a catapult trace. For now the event stream supports START $SESSIONID ... and END $SESSIONID ... events. Everything after the SESSIONID (which must not contain spaces) is used as a label for the event. Events are timestamped as of when they arrive in this process and are then used to produce catapult traces that can be loaded in Chrome's about:tracing utility. It's important that the event stream *into* this process stay simple, because we have to emit it from the shell scripts produced by run-tests.py. Typically you'll want to place the path to the named pipe in the HGCATAPULTSERVERPIPE environment variable, which both run-tests and hg understand. """ from __future__ import absolute_import, print_function import argparse import datetime import json import os _TYPEMAP = { 'START': 'B', 'END': 'E', } _threadmap = {} def main(): parser = argparse.ArgumentParser() parser.add_argument('pipe', type=str, nargs=1, help='Path of named pipe to create and listen on.') parser.add_argument('output', default='trace.json', type=str, nargs='?', help='Path of named pipe to create and listen on.') parser.add_argument('--debug', default=False, action='store_true', help='Print useful debug messages') args = parser.parse_args() fn = args.pipe[0] os.mkfifo(fn) try: with open(fn) as f, open(args.output, 'w') as out: out.write('[\n') start = datetime.datetime.now() while True: ev = f.readline().strip() if not ev: continue now = datetime.datetime.now() if args.debug: print(ev) verb, session, label = ev.split(' ', 2) if session not in _threadmap: _threadmap[session] = len(_threadmap) pid = _threadmap[session] ts_micros = (now - start).total_seconds() * 1000000 out.write(json.dumps( { "name": label, "cat": "misc", "ph": _TYPEMAP[verb], "ts": ts_micros, "pid": pid, "tid": 1, "args": {} })) out.write(',\n') finally: os.unlink(fn) if __name__ == '__main__': main()