Mercurial > hg
view contrib/hgclient.py @ 22806:65ccc733d58e
getlogrevs: remove user of baseset.append
A `baseset` has multiple cached results and will get even more in the future.
Making it an object "populated once" like the other smartsets makes it both safer
and simpler. The append method will be removed at some point.
author | Pierre-Yves David <pierre-yves.david@fb.com> |
---|---|
date | Tue, 07 Oct 2014 00:04:16 -0700 |
parents | cc3d9f776632 |
children | a94594f5d52f |
line wrap: on
line source
# A minimal client for Mercurial's command server import sys, struct, subprocess, cStringIO def connect(path=None): cmdline = ['hg', 'serve', '--cmdserver', 'pipe'] if path: cmdline += ['-R', path] server = subprocess.Popen(cmdline, stdin=subprocess.PIPE, stdout=subprocess.PIPE) return server 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, repopath=None): sys.stdout.flush() server = connect(repopath) try: return func(server) finally: server.stdin.close() server.wait()