Mercurial > hg
annotate contrib/hgclient.py @ 50825:973fbb27ab45
backout: migrate `opts` to native kwargs
It will take a bit to unwind `cmdutil.commit`, so there's a conversion to
byteskwargs there, without changing the type of `opts` in this function. That's
also useful to flag it as needing to be changed.
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Sun, 20 Aug 2023 00:27:27 -0400 |
parents | 642e31cb55f0 |
children | 493034cc3265 |
rev | line source |
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1 # A minimal client for Mercurial's command server |
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2 |
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3 |
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4 import io |
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5 import os |
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6 import re |
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7 import signal |
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8 import socket |
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9 import struct |
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10 import subprocess |
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11 import sys |
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12 import time |
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13 |
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14 if sys.version_info[0] >= 3: |
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15 stdout = sys.stdout.buffer |
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16 stderr = sys.stderr.buffer |
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17 stringio = io.BytesIO |
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18 |
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19 def bprint(*args): |
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20 # remove b'' as well for ease of test migration |
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21 pargs = [re.sub(br'''\bb(['"])''', br'\1', b'%s' % a) for a in args] |
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22 stdout.write(b' '.join(pargs) + b'\n') |
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23 |
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24 |
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25 else: |
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26 import cStringIO |
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27 |
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28 stdout = sys.stdout |
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29 stderr = sys.stderr |
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30 stringio = cStringIO.StringIO |
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31 bprint = print |
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32 |
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33 |
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34 def connectpipe(path=None, extraargs=()): |
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35 cmdline = [b'hg', b'serve', b'--cmdserver', b'pipe'] |
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36 if path: |
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37 cmdline += [b'-R', path] |
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38 cmdline.extend(extraargs) |
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39 |
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40 def tonative(cmdline): |
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41 if os.name != 'nt': |
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42 return cmdline |
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43 return [arg.decode("utf-8") for arg in cmdline] |
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44 |
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45 server = subprocess.Popen( |
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46 tonative(cmdline), stdin=subprocess.PIPE, stdout=subprocess.PIPE |
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47 ) |
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48 |
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49 return server |
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50 |
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51 |
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52 class unixconnection: |
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53 def __init__(self, sockpath): |
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54 self.sock = sock = socket.socket(socket.AF_UNIX) |
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55 sock.connect(sockpath) |
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56 self.stdin = sock.makefile('wb') |
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57 self.stdout = sock.makefile('rb') |
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58 |
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59 def wait(self): |
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60 self.stdin.close() |
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61 self.stdout.close() |
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62 self.sock.close() |
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63 |
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64 |
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65 class unixserver: |
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66 def __init__(self, sockpath, logpath=None, repopath=None): |
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67 self.sockpath = sockpath |
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68 cmdline = [b'hg', b'serve', b'--cmdserver', b'unix', b'-a', sockpath] |
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69 if repopath: |
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70 cmdline += [b'-R', repopath] |
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71 if logpath: |
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72 stdout = open(logpath, 'a') |
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73 stderr = subprocess.STDOUT |
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74 else: |
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75 stdout = stderr = None |
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76 self.server = subprocess.Popen(cmdline, stdout=stdout, stderr=stderr) |
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77 # wait for listen() |
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78 while self.server.poll() is None: |
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79 if os.path.exists(sockpath): |
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80 break |
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81 time.sleep(0.1) |
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82 |
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83 def connect(self): |
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84 return unixconnection(self.sockpath) |
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85 |
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86 def shutdown(self): |
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87 os.kill(self.server.pid, signal.SIGTERM) |
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88 self.server.wait() |
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89 |
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90 |
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91 def writeblock(server, data): |
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92 server.stdin.write(struct.pack(b'>I', len(data))) |
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93 server.stdin.write(data) |
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94 server.stdin.flush() |
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95 |
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96 |
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97 def readchannel(server): |
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98 data = server.stdout.read(5) |
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99 if not data: |
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100 raise EOFError |
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101 channel, length = struct.unpack('>cI', data) |
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102 if channel in b'IL': |
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103 return channel, length |
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104 else: |
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105 return channel, server.stdout.read(length) |
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106 |
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107 |
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108 def sep(text): |
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109 return text.replace(b'\\', b'/') |
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110 |
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111 |
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112 def runcommand( |
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113 server, args, output=stdout, error=stderr, input=None, outfilter=lambda x: x |
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114 ): |
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115 bprint(b'*** runcommand', b' '.join(args)) |
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116 stdout.flush() |
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117 server.stdin.write(b'runcommand\n') |
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118 writeblock(server, b'\0'.join(args)) |
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119 |
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120 if not input: |
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121 input = stringio() |
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122 |
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123 while True: |
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124 ch, data = readchannel(server) |
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125 if ch == b'o': |
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126 output.write(outfilter(data)) |
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127 output.flush() |
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128 elif ch == b'e': |
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129 error.write(data) |
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130 error.flush() |
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131 elif ch == b'I': |
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132 writeblock(server, input.read(data)) |
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133 elif ch == b'L': |
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134 writeblock(server, input.readline(data)) |
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135 elif ch == b'm': |
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136 bprint(b"message: %r" % data) |
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137 elif ch == b'r': |
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138 (ret,) = struct.unpack('>i', data) |
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139 if ret != 0: |
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140 bprint(b' [%d]' % ret) |
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141 return ret |
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142 else: |
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143 bprint(b"unexpected channel %c: %r" % (ch, data)) |
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144 if ch.isupper(): |
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145 return |
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146 |
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147 |
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148 def check(func, connect=connectpipe): |
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149 stdout.flush() |
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150 server = connect() |
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151 try: |
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152 return func(server) |
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153 finally: |
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154 server.stdin.close() |
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155 server.wait() |
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156 |
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157 |
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158 def checkwith(connect=connectpipe, **kwargs): |
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159 def wrap(func): |
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160 return check(func, lambda: connect(**kwargs)) |
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161 |
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162 return wrap |