Mercurial > hg
annotate hgext/convert/p4.py @ 30597:fa2d2c8ac398
convert: don't use long list comprehensions
We are iterating over p4changes. Make the continue condition more clear
and easier to add new conditions in future patches, by removing the list
comprehension and move the condition into the existing for-loop.
author | David Soria Parra <davidsp@fb.com> |
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date | Tue, 13 Dec 2016 21:49:58 -0800 |
parents | a0939666b836 |
children | 364e14885cea |
rev | line source |
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1 # Perforce source for convert extension. |
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2 # |
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3 # Copyright 2009, Frank Kingswood <frank@kingswood-consulting.co.uk> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 from __future__ import absolute_import |
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8 |
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9 import marshal |
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10 import re |
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11 |
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12 from mercurial.i18n import _ |
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13 from mercurial import ( |
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14 error, |
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15 util, |
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16 ) |
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17 |
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18 from . import common |
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19 |
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20 def loaditer(f): |
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21 "Yield the dictionary objects generated by p4" |
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22 try: |
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23 while True: |
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24 d = marshal.load(f) |
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25 if not d: |
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26 break |
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27 yield d |
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28 except EOFError: |
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29 pass |
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30 |
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31 def decodefilename(filename): |
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32 """Perforce escapes special characters @, #, *, or % |
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33 with %40, %23, %2A, or %25 respectively |
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34 |
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35 >>> decodefilename('portable-net45%252Bnetcore45%252Bwp8%252BMonoAndroid') |
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36 'portable-net45%2Bnetcore45%2Bwp8%2BMonoAndroid' |
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37 >>> decodefilename('//Depot/Directory/%2525/%2523/%23%40.%2A') |
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38 '//Depot/Directory/%25/%23/#@.*' |
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39 """ |
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40 replacements = [('%2A', '*'), ('%23', '#'), ('%40', '@'), ('%25', '%')] |
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41 for k, v in replacements: |
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42 filename = filename.replace(k, v) |
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43 return filename |
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44 |
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45 class p4_source(common.converter_source): |
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46 def __init__(self, ui, path, revs=None): |
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47 # avoid import cycle |
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48 from . import convcmd |
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49 |
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50 super(p4_source, self).__init__(ui, path, revs=revs) |
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51 |
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52 if "/" in path and not path.startswith('//'): |
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53 raise common.NoRepo(_('%s does not look like a P4 repository') % |
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54 path) |
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55 |
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56 common.checktool('p4', abort=False) |
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57 |
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58 self.p4changes = {} |
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59 self.heads = {} |
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60 self.changeset = {} |
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61 self.files = {} |
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62 self.copies = {} |
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63 self.tags = {} |
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64 self.lastbranch = {} |
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65 self.parent = {} |
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66 self.encoding = self.ui.config('convert', 'p4.encoding', |
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67 default=convcmd.orig_encoding) |
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68 self.depotname = {} # mapping from local name to depot name |
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69 self.localname = {} # mapping from depot name to local name |
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70 self.re_type = re.compile( |
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71 "([a-z]+)?(text|binary|symlink|apple|resource|unicode|utf\d+)" |
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72 "(\+\w+)?$") |
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73 self.re_keywords = re.compile( |
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74 r"\$(Id|Header|Date|DateTime|Change|File|Revision|Author)" |
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75 r":[^$\n]*\$") |
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76 self.re_keywords_old = re.compile("\$(Id|Header):[^$\n]*\$") |
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77 |
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78 if revs and len(revs) > 1: |
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79 raise error.Abort(_("p4 source does not support specifying " |
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80 "multiple revisions")) |
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81 self._parse(ui, path) |
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82 |
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83 def _parse_view(self, path): |
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84 "Read changes affecting the path" |
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85 cmd = 'p4 -G changes -s submitted %s' % util.shellquote(path) |
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86 stdout = util.popen(cmd, mode='rb') |
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87 for d in loaditer(stdout): |
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88 c = d.get("change", None) |
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89 if c: |
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90 self.p4changes[c] = True |
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91 |
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92 def _parse(self, ui, path): |
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93 "Prepare list of P4 filenames and revisions to import" |
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94 ui.status(_('reading p4 views\n')) |
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95 |
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96 # read client spec or view |
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97 if "/" in path: |
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98 self._parse_view(path) |
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99 if path.startswith("//") and path.endswith("/..."): |
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100 views = {path[:-3]:""} |
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101 else: |
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102 views = {"//": ""} |
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103 else: |
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104 cmd = 'p4 -G client -o %s' % util.shellquote(path) |
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105 clientspec = marshal.load(util.popen(cmd, mode='rb')) |
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106 |
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107 views = {} |
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108 for client in clientspec: |
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109 if client.startswith("View"): |
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110 sview, cview = clientspec[client].split() |
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111 self._parse_view(sview) |
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112 if sview.endswith("...") and cview.endswith("..."): |
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113 sview = sview[:-3] |
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114 cview = cview[:-3] |
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115 cview = cview[2:] |
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116 cview = cview[cview.find("/") + 1:] |
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117 views[sview] = cview |
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118 |
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119 # list of changes that affect our source files |
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120 self.p4changes = self.p4changes.keys() |
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121 self.p4changes.sort(key=int) |
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122 |
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123 # list with depot pathnames, longest first |
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124 vieworder = views.keys() |
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126 |
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127 # handle revision limiting |
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128 startrev = self.ui.config('convert', 'p4.startrev', default=0) |
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129 |
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130 # now read the full changelists to get the list of file revisions |
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131 ui.status(_('collecting p4 changelists\n')) |
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132 lastid = None |
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133 for change in self.p4changes: |
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134 if startrev and int(change) < int(startrev): |
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135 continue |
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136 if self.revs and int(change) > int(self.revs[0]): |
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137 continue |
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138 |
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139 cmd = "p4 -G describe -s %s" % change |
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140 stdout = util.popen(cmd, mode='rb') |
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141 d = marshal.load(stdout) |
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142 desc = self.recode(d.get("desc", "")) |
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143 shortdesc = desc.split("\n", 1)[0] |
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144 t = '%s %s' % (d["change"], repr(shortdesc)[1:-1]) |
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145 ui.status(util.ellipsis(t, 80) + '\n') |
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146 |
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147 if lastid: |
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148 parents = [lastid] |
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149 else: |
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150 parents = [] |
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151 |
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152 date = (int(d["time"]), 0) # timezone not set |
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153 c = common.commit(author=self.recode(d["user"]), |
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154 date=util.datestr(date, '%Y-%m-%d %H:%M:%S %1%2'), |
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155 parents=parents, desc=desc, branch=None, |
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156 extra={"p4": change}) |
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157 |
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158 files = [] |
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159 copies = {} |
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160 copiedfiles = [] |
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161 i = 0 |
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162 while ("depotFile%d" % i) in d and ("rev%d" % i) in d: |
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163 oldname = d["depotFile%d" % i] |
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164 filename = None |
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165 for v in vieworder: |
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166 if oldname.lower().startswith(v.lower()): |
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167 filename = decodefilename(views[v] + oldname[len(v):]) |
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168 break |
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169 if filename: |
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170 files.append((filename, d["rev%d" % i])) |
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171 self.depotname[filename] = oldname |
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172 if (d.get("action%d" % i) == "move/add"): |
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173 copiedfiles.append(filename) |
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174 self.localname[oldname] = filename |
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175 i += 1 |
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176 |
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177 # Collect information about copied files |
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178 for filename in copiedfiles: |
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179 oldname = self.depotname[filename] |
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180 |
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181 flcmd = 'p4 -G filelog %s' \ |
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182 % util.shellquote(oldname) |
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183 flstdout = util.popen(flcmd, mode='rb') |
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184 |
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185 copiedfilename = None |
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186 for d in loaditer(flstdout): |
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187 copiedoldname = None |
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188 |
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189 i = 0 |
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190 while ("change%d" % i) in d: |
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191 if (d["change%d" % i] == change and |
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192 d["action%d" % i] == "move/add"): |
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193 j = 0 |
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194 while ("file%d,%d" % (i, j)) in d: |
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195 if d["how%d,%d" % (i, j)] == "moved from": |
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196 copiedoldname = d["file%d,%d" % (i, j)] |
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197 break |
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198 j += 1 |
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199 i += 1 |
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200 |
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201 if copiedoldname and copiedoldname in self.localname: |
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202 copiedfilename = self.localname[copiedoldname] |
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203 break |
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204 |
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205 if copiedfilename: |
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206 copies[filename] = copiedfilename |
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207 else: |
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208 ui.warn(_("cannot find source for copied file: %s@%s\n") |
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209 % (filename, change)) |
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210 |
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211 self.changeset[change] = c |
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212 self.files[change] = files |
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213 self.copies[change] = copies |
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214 lastid = change |
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215 |
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216 if lastid: |
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217 self.heads = [lastid] |
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218 |
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219 def getheads(self): |
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220 return self.heads |
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221 |
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222 def getfile(self, name, rev): |
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223 cmd = 'p4 -G print %s' \ |
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224 % util.shellquote("%s#%s" % (self.depotname[name], rev)) |
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225 |
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226 lasterror = None |
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227 while True: |
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228 stdout = util.popen(cmd, mode='rb') |
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229 |
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230 mode = None |
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231 contents = [] |
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232 keywords = None |
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233 |
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234 for d in loaditer(stdout): |
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235 code = d["code"] |
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236 data = d.get("data") |
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237 |
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238 if code == "error": |
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239 # if this is the first time error happened |
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240 # re-attempt getting the file |
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241 if not lasterror: |
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242 lasterror = IOError(d["generic"], data) |
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243 # this will exit inner-most for-loop |
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244 break |
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245 else: |
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246 raise lasterror |
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247 |
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248 elif code == "stat": |
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249 action = d.get("action") |
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250 if action in ["purge", "delete", "move/delete"]: |
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251 return None, None |
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252 p4type = self.re_type.match(d["type"]) |
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253 if p4type: |
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254 mode = "" |
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255 flags = ((p4type.group(1) or "") |
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256 + (p4type.group(3) or "")) |
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257 if "x" in flags: |
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258 mode = "x" |
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259 if p4type.group(2) == "symlink": |
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260 mode = "l" |
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261 if "ko" in flags: |
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262 keywords = self.re_keywords_old |
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263 elif "k" in flags: |
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264 keywords = self.re_keywords |
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265 |
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266 elif code == "text" or code == "binary": |
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267 contents.append(data) |
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268 |
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269 lasterror = None |
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270 |
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271 if not lasterror: |
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272 break |
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273 |
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274 if mode is None: |
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275 return None, None |
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276 |
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277 contents = ''.join(contents) |
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278 |
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279 if keywords: |
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280 contents = keywords.sub("$\\1$", contents) |
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281 if mode == "l" and contents.endswith("\n"): |
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282 contents = contents[:-1] |
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283 |
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284 return contents, mode |
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285 |
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286 def getchanges(self, rev, full): |
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287 if full: |
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288 raise error.Abort(_("convert from p4 does not support --full")) |
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289 return self.files[rev], self.copies[rev], set() |
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290 |
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291 def getcommit(self, rev): |
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292 return self.changeset[rev] |
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293 |
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294 def gettags(self): |
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295 return self.tags |
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296 |
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297 def getchangedfiles(self, rev, i): |
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298 return sorted([x[0] for x in self.files[rev]]) |