Mercurial > hg
view contrib/hgclient.py @ 44465:75ada5fe9b62
hghave: add a `rust` keyword to detect the use of compiled rust code
The content of some on disk cache can varies when using rust (because it is
faster to do so in the rust variant). So we need to be able to detect this case
for some test.
Differential Revision: https://phab.mercurial-scm.org/D8162
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Tue, 18 Feb 2020 18:32:31 +0100 |
parents | 9f70512ae2cf |
children | 6000f5b25c9b |
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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 != '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