Mercurial > hg
view contrib/hgclient.py @ 40075:ad8d8dc9be3f
narrow: move adding of narrow server capabilities to core
We use the experimental.narrow config option introduced in one of the previous
patch and move the functionality of adding narrow server capabilities to core.
Differential Revision: https://phab.mercurial-scm.org/D4891
author | Pulkit Goyal <pulkit@yandex-team.ru> |
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date | Fri, 05 Oct 2018 22:52:24 +0300 |
parents | 3f45488d70df |
children | 73c2b9c9cd3c |
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# A minimal client for Mercurial's command server from __future__ import absolute_import, print_function import os import signal import socket import struct import subprocess import sys import time try: import cStringIO as io stringio = io.StringIO except ImportError: import io stringio = io.StringIO 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 = 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()