Mercurial > hg
view contrib/hgclient.py @ 43103:c95b2f40db7c
py3: stop normalizing 2nd argument of *attr() to unicode
Now that we don't byteify strings, we can stop normalizing the 2nd
string argument to getattr() and remove explicit overrides we were
using in the code base.
We no longer use some helper functions in the source transformer,
so we remove those as well.
Differential Revision: https://phab.mercurial-scm.org/D7012
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sun, 06 Oct 2019 17:45:05 -0400 |
parents | 2372284d9457 |
children | 9f70512ae2cf |
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# A minimal client for Mercurial's command server from __future__ import absolute_import, print_function import io import os import re import signal import socket import struct import subprocess import sys import time if sys.version_info[0] >= 3: stdout = sys.stdout.buffer stderr = sys.stderr.buffer stringio = io.BytesIO def bprint(*args): # remove b'' as well for ease of test migration pargs = [re.sub(br'''\bb(['"])''', br'\1', b'%s' % a) for a in args] stdout.write(b' '.join(pargs) + b'\n') else: import cStringIO stdout = sys.stdout stderr = sys.stderr stringio = cStringIO.StringIO bprint = print def connectpipe(path=None, extraargs=()): cmdline = [b'hg', b'serve', b'--cmdserver', b'pipe'] if path: cmdline += [b'-R', path] cmdline.extend(extraargs) def tonative(cmdline): if os.name != r'nt': return cmdline return [arg.decode("utf-8") for arg in cmdline] server = subprocess.Popen( tonative(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 = [b'hg', b'serve', b'--cmdserver', b'unix', b'-a', sockpath] if repopath: cmdline += [b'-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(b'>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 b'IL': return channel, length else: return channel, server.stdout.read(length) def sep(text): return text.replace(b'\\', b'/') def runcommand( server, args, output=stdout, error=stderr, input=None, outfilter=lambda x: x ): bprint(b'*** runcommand', b' '.join(args)) stdout.flush() server.stdin.write(b'runcommand\n') writeblock(server, b'\0'.join(args)) if not input: input = stringio() while True: ch, data = readchannel(server) if ch == b'o': output.write(outfilter(data)) output.flush() elif ch == b'e': error.write(data) error.flush() elif ch == b'I': writeblock(server, input.read(data)) elif ch == b'L': writeblock(server, input.readline(data)) elif ch == b'm': bprint(b"message: %r" % data) elif ch == b'r': (ret,) = struct.unpack('>i', data) if ret != 0: bprint(b' [%d]' % ret) return ret else: bprint(b"unexpected channel %c: %r" % (ch, data)) if ch.isupper(): return def check(func, connect=connectpipe): stdout.flush() server = connect() try: return func(server) finally: server.stdin.close() server.wait() def checkwith(connect=connectpipe, **kwargs): def wrap(func): return check(func, lambda: connect(**kwargs)) return wrap