Mercurial > hg
annotate hgext/convert/monotone.py @ 43044:f9d35f01b8b3
setup: build extensions in parallel by default
The build_ext distutils command in Python 3.5+ has a "parallel"
option that controls whether to build extensions in parallel. It
is disabled by default (None) and can be set to an integer value
for number of cores or True to indicate use all available CPU
cores.
This commit changes our build_ext command override to set
"parallel" to True unless a value has been provided by the caller.
On my machine, this makes `python setup.py build_ext` 1-4s faster.
It is worth noting that at this time, each individual source file
constituting the extension is still built serially. For Mercurial,
this means that we can't build faster than the slowest-to-build
extension, which is the zstd extension by a long shot. This means
that setup.py is still not very efficient at utilizing multiple
cores. But we're better than before.
Differential Revision: https://phab.mercurial-scm.org/D6923
# no-check-commit because of foo_bar naming
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Mon, 30 Sep 2019 17:26:41 -0700 |
parents | d26bfbf419f9 |
children | 2372284d9457 |
rev | line source |
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1 # monotone.py - monotone support for the convert extension |
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2 # |
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3 # Copyright 2008, 2009 Mikkel Fahnoe Jorgensen <mikkel@dvide.com> and |
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4 # others |
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5 # |
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6 # This software may be used and distributed according to the terms of the |
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8 from __future__ import absolute_import |
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9 |
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10 import os |
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11 import re |
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12 |
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13 from mercurial.i18n import _ |
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14 from mercurial import ( |
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15 error, |
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16 pycompat, |
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17 ) |
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18 from mercurial.utils import dateutil |
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19 |
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20 from . import common |
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21 |
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22 class monotone_source(common.converter_source, common.commandline): |
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23 def __init__(self, ui, repotype, path=None, revs=None): |
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24 common.converter_source.__init__(self, ui, repotype, path, revs) |
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25 if revs and len(revs) > 1: |
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26 raise error.Abort(_('monotone source does not support specifying ' |
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27 'multiple revs')) |
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28 common.commandline.__init__(self, ui, 'mtn') |
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29 |
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30 self.ui = ui |
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31 self.path = path |
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32 self.automatestdio = False |
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33 self.revs = revs |
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34 |
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35 norepo = common.NoRepo(_("%s does not look like a monotone repository") |
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36 % path) |
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37 if not os.path.exists(os.path.join(path, '_MTN')): |
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38 # Could be a monotone repository (SQLite db file) |
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39 try: |
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40 f = open(path, 'rb') |
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41 header = f.read(16) |
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42 f.close() |
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43 except IOError: |
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44 header = '' |
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45 if header != 'SQLite format 3\x00': |
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46 raise norepo |
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47 |
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48 # regular expressions for parsing monotone output |
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49 space = br'\s*' |
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50 name = br'\s+"((?:\\"|[^"])*)"\s*' |
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51 value = name |
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52 revision = br'\s+\[(\w+)\]\s*' |
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53 lines = br'(?:.|\n)+' |
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54 |
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55 self.dir_re = re.compile(space + "dir" + name) |
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56 self.file_re = re.compile(space + "file" + name + |
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57 "content" + revision) |
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58 self.add_file_re = re.compile(space + "add_file" + name + |
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59 "content" + revision) |
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60 self.patch_re = re.compile(space + "patch" + name + |
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61 "from" + revision + "to" + revision) |
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62 self.rename_re = re.compile(space + "rename" + name + "to" + name) |
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63 self.delete_re = re.compile(space + "delete" + name) |
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64 self.tag_re = re.compile(space + "tag" + name + "revision" + |
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65 revision) |
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66 self.cert_re = re.compile(lines + space + "name" + name + |
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67 "value" + value) |
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68 |
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69 attr = space + "file" + lines + space + "attr" + space |
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70 self.attr_execute_re = re.compile(attr + '"mtn:execute"' + |
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71 space + '"true"') |
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72 |
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73 # cached data |
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74 self.manifest_rev = None |
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75 self.manifest = None |
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76 self.files = None |
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77 self.dirs = None |
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78 |
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79 common.checktool('mtn', abort=False) |
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80 |
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81 def mtnrun(self, *args, **kwargs): |
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82 if self.automatestdio: |
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83 return self.mtnrunstdio(*args, **kwargs) |
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84 else: |
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85 return self.mtnrunsingle(*args, **kwargs) |
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86 |
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87 def mtnrunsingle(self, *args, **kwargs): |
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88 kwargs[r'd'] = self.path |
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89 return self.run0('automate', *args, **kwargs) |
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90 |
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91 def mtnrunstdio(self, *args, **kwargs): |
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92 # Prepare the command in automate stdio format |
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93 kwargs = pycompat.byteskwargs(kwargs) |
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94 command = [] |
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95 for k, v in kwargs.iteritems(): |
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96 command.append("%d:%s" % (len(k), k)) |
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97 if v: |
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98 command.append("%d:%s" % (len(v), v)) |
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99 if command: |
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100 command.insert(0, 'o') |
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101 command.append('e') |
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102 |
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103 command.append('l') |
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104 for arg in args: |
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105 command.append("%d:%s" % (len(arg), arg)) |
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106 command.append('e') |
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107 command = ''.join(command) |
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108 |
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109 self.ui.debug("mtn: sending '%s'\n" % command) |
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110 self.mtnwritefp.write(command) |
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111 self.mtnwritefp.flush() |
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112 |
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113 return self.mtnstdioreadcommandoutput(command) |
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114 |
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115 def mtnstdioreadpacket(self): |
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116 read = None |
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117 commandnbr = '' |
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118 while read != ':': |
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119 read = self.mtnreadfp.read(1) |
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120 if not read: |
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121 raise error.Abort(_('bad mtn packet - no end of commandnbr')) |
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122 commandnbr += read |
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123 commandnbr = commandnbr[:-1] |
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124 |
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125 stream = self.mtnreadfp.read(1) |
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126 if stream not in 'mewptl': |
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127 raise error.Abort(_('bad mtn packet - bad stream type %s') % stream) |
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128 |
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129 read = self.mtnreadfp.read(1) |
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130 if read != ':': |
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131 raise error.Abort(_('bad mtn packet - no divider before size')) |
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132 |
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133 read = None |
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134 lengthstr = '' |
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135 while read != ':': |
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136 read = self.mtnreadfp.read(1) |
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137 if not read: |
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138 raise error.Abort(_('bad mtn packet - no end of packet size')) |
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139 lengthstr += read |
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140 try: |
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141 length = pycompat.long(lengthstr[:-1]) |
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142 except TypeError: |
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143 raise error.Abort(_('bad mtn packet - bad packet size %s') |
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144 % lengthstr) |
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145 |
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146 read = self.mtnreadfp.read(length) |
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147 if len(read) != length: |
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148 raise error.Abort(_("bad mtn packet - unable to read full packet " |
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149 "read %s of %s") % (len(read), length)) |
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150 |
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151 return (commandnbr, stream, length, read) |
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152 |
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153 def mtnstdioreadcommandoutput(self, command): |
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154 retval = [] |
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155 while True: |
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156 commandnbr, stream, length, output = self.mtnstdioreadpacket() |
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157 self.ui.debug('mtn: read packet %s:%s:%d\n' % |
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158 (commandnbr, stream, length)) |
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159 |
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160 if stream == 'l': |
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161 # End of command |
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162 if output != '0': |
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163 raise error.Abort(_("mtn command '%s' returned %s") % |
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164 (command, output)) |
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165 break |
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166 elif stream in 'ew': |
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167 # Error, warning output |
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168 self.ui.warn(_('%s error:\n') % self.command) |
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169 self.ui.warn(output) |
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170 elif stream == 'p': |
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171 # Progress messages |
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172 self.ui.debug('mtn: ' + output) |
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173 elif stream == 'm': |
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174 # Main stream - command output |
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175 retval.append(output) |
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176 |
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177 return ''.join(retval) |
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178 |
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179 def mtnloadmanifest(self, rev): |
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180 if self.manifest_rev == rev: |
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181 return |
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182 self.manifest = self.mtnrun("get_manifest_of", rev).split("\n\n") |
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183 self.manifest_rev = rev |
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184 self.files = {} |
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185 self.dirs = {} |
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186 |
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187 for e in self.manifest: |
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188 m = self.file_re.match(e) |
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189 if m: |
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190 attr = "" |
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191 name = m.group(1) |
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192 node = m.group(2) |
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193 if self.attr_execute_re.match(e): |
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194 attr += "x" |
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195 self.files[name] = (node, attr) |
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196 m = self.dir_re.match(e) |
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197 if m: |
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198 self.dirs[m.group(1)] = True |
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199 |
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200 def mtnisfile(self, name, rev): |
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201 # a non-file could be a directory or a deleted or renamed file |
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202 self.mtnloadmanifest(rev) |
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203 return name in self.files |
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204 |
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205 def mtnisdir(self, name, rev): |
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206 self.mtnloadmanifest(rev) |
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207 return name in self.dirs |
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208 |
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209 def mtngetcerts(self, rev): |
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210 certs = {"author":"<missing>", "date":"<missing>", |
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211 "changelog":"<missing>", "branch":"<missing>"} |
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212 certlist = self.mtnrun("certs", rev) |
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213 # mtn < 0.45: |
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214 # key "test@selenic.com" |
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215 # mtn >= 0.45: |
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216 # key [ff58a7ffb771907c4ff68995eada1c4da068d328] |
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217 certlist = re.split(br'\n\n key ["\[]', certlist) |
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218 for e in certlist: |
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219 m = self.cert_re.match(e) |
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220 if m: |
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221 name, value = m.groups() |
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222 value = value.replace(br'\"', '"') |
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223 value = value.replace(br'\\', '\\') |
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224 certs[name] = value |
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225 # Monotone may have subsecond dates: 2005-02-05T09:39:12.364306 |
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226 # and all times are stored in UTC |
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227 certs["date"] = certs["date"].split('.')[0] + " UTC" |
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228 return certs |
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229 |
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230 # implement the converter_source interface: |
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231 |
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232 def getheads(self): |
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233 if not self.revs: |
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234 return self.mtnrun("leaves").splitlines() |
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235 else: |
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236 return self.revs |
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237 |
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238 def getchanges(self, rev, full): |
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239 if full: |
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240 raise error.Abort(_("convert from monotone does not support " |
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241 "--full")) |
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242 revision = self.mtnrun("get_revision", rev).split("\n\n") |
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243 files = {} |
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244 ignoremove = {} |
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245 renameddirs = [] |
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246 copies = {} |
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247 for e in revision: |
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248 m = self.add_file_re.match(e) |
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249 if m: |
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250 files[m.group(1)] = rev |
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251 ignoremove[m.group(1)] = rev |
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252 m = self.patch_re.match(e) |
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253 if m: |
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254 files[m.group(1)] = rev |
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255 # Delete/rename is handled later when the convert engine |
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256 # discovers an IOError exception from getfile, |
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257 # but only if we add the "from" file to the list of changes. |
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258 m = self.delete_re.match(e) |
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259 if m: |
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260 files[m.group(1)] = rev |
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261 m = self.rename_re.match(e) |
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262 if m: |
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263 toname = m.group(2) |
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264 fromname = m.group(1) |
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265 if self.mtnisfile(toname, rev): |
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266 ignoremove[toname] = 1 |
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267 copies[toname] = fromname |
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268 files[toname] = rev |
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269 files[fromname] = rev |
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270 elif self.mtnisdir(toname, rev): |
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271 renameddirs.append((fromname, toname)) |
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272 |
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273 # Directory renames can be handled only once we have recorded |
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274 # all new files |
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275 for fromdir, todir in renameddirs: |
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276 renamed = {} |
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277 for tofile in self.files: |
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278 if tofile in ignoremove: |
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279 continue |
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280 if tofile.startswith(todir + '/'): |
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281 renamed[tofile] = fromdir + tofile[len(todir):] |
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282 # Avoid chained moves like: |
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283 # d1(/a) => d3/d1(/a) |
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284 # d2 => d3 |
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285 ignoremove[tofile] = 1 |
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286 for tofile, fromfile in renamed.items(): |
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287 self.ui.debug( |
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288 "copying file in renamed directory from '%s' to '%s'" |
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289 % (fromfile, tofile), '\n') |
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290 files[tofile] = rev |
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291 copies[tofile] = fromfile |
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292 for fromfile in renamed.values(): |
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293 files[fromfile] = rev |
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294 |
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295 return (files.items(), copies, set()) |
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296 |
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297 def getfile(self, name, rev): |
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298 if not self.mtnisfile(name, rev): |
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299 return None, None |
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300 try: |
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301 data = self.mtnrun("get_file_of", name, r=rev) |
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302 except Exception: |
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303 return None, None |
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304 self.mtnloadmanifest(rev) |
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305 node, attr = self.files.get(name, (None, "")) |
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306 return data, attr |
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307 |
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308 def getcommit(self, rev): |
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309 extra = {} |
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310 certs = self.mtngetcerts(rev) |
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311 if certs.get('suspend') == certs["branch"]: |
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312 extra['close'] = 1 |
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313 dateformat = "%Y-%m-%dT%H:%M:%S" |
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314 return common.commit( |
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315 author=certs["author"], |
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316 date=dateutil.datestr(dateutil.strdate(certs["date"], dateformat)), |
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317 desc=certs["changelog"], |
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318 rev=rev, |
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319 parents=self.mtnrun("parents", rev).splitlines(), |
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320 branch=certs["branch"], |
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321 extra=extra) |
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322 |
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323 def gettags(self): |
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324 tags = {} |
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325 for e in self.mtnrun("tags").split("\n\n"): |
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326 m = self.tag_re.match(e) |
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327 if m: |
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328 tags[m.group(1)] = m.group(2) |
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329 return tags |
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330 |
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331 def getchangedfiles(self, rev, i): |
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332 # This function is only needed to support --filemap |
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333 # ... and we don't support that |
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334 raise NotImplementedError |
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335 |
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336 def before(self): |
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337 # Check if we have a new enough version to use automate stdio |
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338 try: |
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339 versionstr = self.mtnrunsingle("interface_version") |
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340 version = float(versionstr) |
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341 except Exception: |
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342 raise error.Abort(_("unable to determine mtn automate interface " |
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343 "version")) |
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344 |
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345 if version >= 12.0: |
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346 self.automatestdio = True |
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347 self.ui.debug("mtn automate version %f - using automate stdio\n" % |
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348 version) |
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349 |
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350 # launch the long-running automate stdio process |
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351 self.mtnwritefp, self.mtnreadfp = self._run2('automate', 'stdio', |
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352 '-d', self.path) |
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353 # read the headers |
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354 read = self.mtnreadfp.readline() |
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355 if read != 'format-version: 2\n': |
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356 raise error.Abort(_('mtn automate stdio header unexpected: %s') |
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357 % read) |
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358 while read != '\n': |
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359 read = self.mtnreadfp.readline() |
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360 if not read: |
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361 raise error.Abort(_("failed to reach end of mtn automate " |
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362 "stdio headers")) |
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363 else: |
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364 self.ui.debug("mtn automate version %s - not using automate stdio " |
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365 "(automate >= 12.0 - mtn >= 0.46 is needed)\n" % version) |
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366 |
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367 def after(self): |
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368 if self.automatestdio: |
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369 self.mtnwritefp.close() |
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370 self.mtnwritefp = None |
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371 self.mtnreadfp.close() |
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372 self.mtnreadfp = None |