Mercurial > hg
view contrib/hgclient.py @ 27072:e18a9ceade3b
perf: support obtaining contexts from perfrevset
Previously, perfrevset called repo.revs(), which only returns integer
revisions. Many revset consumers call repo.set(), which returns
changectx instances. Or they obtain a context manually later.
Since obtaining changectx instances when evaluating revsets is common,
this patch adds support for benchmarking this use case.
While we added an if conditional for every benchmark loop, it
doesn't appear to matter since revset evaluation dwarfs the cost
of a single if.
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Sat, 21 Nov 2015 15:39:18 -0800 |
parents | 24c5fd2894f8 |
children | 897a4bbd578b |
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# A minimal client for Mercurial's command server import os, sys, signal, struct, socket, subprocess, time, cStringIO def connectpipe(path=None): cmdline = ['hg', 'serve', '--cmdserver', 'pipe'] if path: cmdline += ['-R', path] server = subprocess.Popen(cmdline, stdin=subprocess.PIPE, stdout=subprocess.PIPE) return server class unixconnection(object): def __init__(self, sockpath): self.sock = sock = socket.socket(socket.AF_UNIX) sock.connect(sockpath) self.stdin = sock.makefile('wb') self.stdout = sock.makefile('rb') def wait(self): self.stdin.close() self.stdout.close() self.sock.close() class unixserver(object): def __init__(self, sockpath, logpath=None, repopath=None): self.sockpath = sockpath cmdline = ['hg', 'serve', '--cmdserver', 'unix', '-a', sockpath] if repopath: cmdline += ['-R', repopath] if logpath: stdout = open(logpath, 'a') stderr = subprocess.STDOUT else: stdout = stderr = None self.server = subprocess.Popen(cmdline, stdout=stdout, stderr=stderr) # wait for listen() while self.server.poll() is None: if os.path.exists(sockpath): break time.sleep(0.1) def connect(self): return unixconnection(self.sockpath) def shutdown(self): os.kill(self.server.pid, signal.SIGTERM) self.server.wait() def writeblock(server, data): server.stdin.write(struct.pack('>I', len(data))) server.stdin.write(data) server.stdin.flush() def readchannel(server): data = server.stdout.read(5) if not data: raise EOFError channel, length = struct.unpack('>cI', data) if channel in 'IL': return channel, length else: return channel, server.stdout.read(length) def sep(text): return text.replace('\\', '/') def runcommand(server, args, output=sys.stdout, error=sys.stderr, input=None, outfilter=lambda x: x): print '*** runcommand', ' '.join(args) sys.stdout.flush() server.stdin.write('runcommand\n') writeblock(server, '\0'.join(args)) if not input: input = cStringIO.StringIO() while True: ch, data = readchannel(server) if ch == 'o': output.write(outfilter(data)) output.flush() elif ch == 'e': error.write(data) error.flush() elif ch == 'I': writeblock(server, input.read(data)) elif ch == 'L': writeblock(server, input.readline(data)) elif ch == 'r': ret, = struct.unpack('>i', data) if ret != 0: print ' [%d]' % ret return ret else: print "unexpected channel %c: %r" % (ch, data) if ch.isupper(): return def check(func, connect=connectpipe): sys.stdout.flush() server = connect() try: return func(server) finally: server.stdin.close() server.wait()