Mercurial > hg
annotate hgext/convert/p4.py @ 25775:220d9ae6a9a8
convert: if getting a file from Perforce fails try to get it one more time
When converting a particularly large Perforce changelist (especially with some
big files), it is very likely to run into an intermittent network issue (e.g.
WSAECONNRESET or WSAETIMEDOUT) getting one of the files, which will result in
the entire changelist converting being aborted. Which can be quite unfortunate
since you might have waited hours getting all other files. To mitigate this
let's attempt to get the file one more time, escalating original exception
if that attempt fails.
author | Eugene Baranov <eug.baranov@gmail.com> |
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date | Wed, 08 Jul 2015 18:11:40 +0100 |
parents | 648323f41a89 |
children | 809c3e4a9e31 |
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 |
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8 from mercurial import util |
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9 from mercurial.i18n import _ |
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10 |
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11 from common import commit, converter_source, checktool, NoRepo |
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12 import marshal |
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13 import re |
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14 |
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15 def loaditer(f): |
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16 "Yield the dictionary objects generated by p4" |
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17 try: |
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18 while True: |
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19 d = marshal.load(f) |
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20 if not d: |
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21 break |
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22 yield d |
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23 except EOFError: |
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24 pass |
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25 |
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26 class p4_source(converter_source): |
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27 def __init__(self, ui, path, revs=None): |
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28 super(p4_source, self).__init__(ui, path, revs=revs) |
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29 |
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30 if "/" in path and not path.startswith('//'): |
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31 raise NoRepo(_('%s does not look like a P4 repository') % path) |
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32 |
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33 checktool('p4', abort=False) |
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34 |
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35 self.p4changes = {} |
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36 self.heads = {} |
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37 self.changeset = {} |
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38 self.files = {} |
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39 self.copies = {} |
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40 self.tags = {} |
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41 self.lastbranch = {} |
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42 self.parent = {} |
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43 self.encoding = "latin_1" |
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44 self.depotname = {} # mapping from local name to depot name |
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45 self.localname = {} # mapping from depot name to local name |
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46 self.re_type = re.compile( |
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47 "([a-z]+)?(text|binary|symlink|apple|resource|unicode|utf\d+)" |
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48 "(\+\w+)?$") |
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49 self.re_keywords = re.compile( |
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50 r"\$(Id|Header|Date|DateTime|Change|File|Revision|Author)" |
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51 r":[^$\n]*\$") |
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52 self.re_keywords_old = re.compile("\$(Id|Header):[^$\n]*\$") |
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53 |
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54 if revs and len(revs) > 1: |
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55 raise util.Abort(_("p4 source does not support specifying " |
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56 "multiple revisions")) |
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57 self._parse(ui, path) |
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58 |
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59 def _parse_view(self, path): |
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60 "Read changes affecting the path" |
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61 cmd = 'p4 -G changes -s submitted %s' % util.shellquote(path) |
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62 stdout = util.popen(cmd, mode='rb') |
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63 for d in loaditer(stdout): |
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64 c = d.get("change", None) |
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65 if c: |
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66 self.p4changes[c] = True |
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67 |
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68 def _parse(self, ui, path): |
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69 "Prepare list of P4 filenames and revisions to import" |
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70 ui.status(_('reading p4 views\n')) |
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71 |
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72 # read client spec or view |
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73 if "/" in path: |
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74 self._parse_view(path) |
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75 if path.startswith("//") and path.endswith("/..."): |
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76 views = {path[:-3]:""} |
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77 else: |
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78 views = {"//": ""} |
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79 else: |
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80 cmd = 'p4 -G client -o %s' % util.shellquote(path) |
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81 clientspec = marshal.load(util.popen(cmd, mode='rb')) |
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82 |
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83 views = {} |
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84 for client in clientspec: |
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85 if client.startswith("View"): |
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86 sview, cview = clientspec[client].split() |
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87 self._parse_view(sview) |
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88 if sview.endswith("...") and cview.endswith("..."): |
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89 sview = sview[:-3] |
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90 cview = cview[:-3] |
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91 cview = cview[2:] |
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92 cview = cview[cview.find("/") + 1:] |
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93 views[sview] = cview |
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94 |
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95 # list of changes that affect our source files |
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96 self.p4changes = self.p4changes.keys() |
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97 self.p4changes.sort(key=int) |
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98 |
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99 # list with depot pathnames, longest first |
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100 vieworder = views.keys() |
9039 | 101 vieworder.sort(key=len, reverse=True) |
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102 |
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103 # handle revision limiting |
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104 startrev = self.ui.config('convert', 'p4.startrev', default=0) |
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105 self.p4changes = [x for x in self.p4changes |
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106 if ((not startrev or int(x) >= int(startrev)) and |
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107 (not self.revs or int(x) <= int(self.revs[0])))] |
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108 |
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109 # now read the full changelists to get the list of file revisions |
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110 ui.status(_('collecting p4 changelists\n')) |
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111 lastid = None |
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112 for change in self.p4changes: |
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113 cmd = "p4 -G describe -s %s" % change |
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114 stdout = util.popen(cmd, mode='rb') |
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115 d = marshal.load(stdout) |
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116 desc = self.recode(d.get("desc", "")) |
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117 shortdesc = desc.split("\n", 1)[0] |
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118 t = '%s %s' % (d["change"], repr(shortdesc)[1:-1]) |
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119 ui.status(util.ellipsis(t, 80) + '\n') |
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120 |
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121 if lastid: |
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122 parents = [lastid] |
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123 else: |
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124 parents = [] |
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125 |
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126 date = (int(d["time"]), 0) # timezone not set |
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127 c = commit(author=self.recode(d["user"]), |
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128 date=util.datestr(date, '%Y-%m-%d %H:%M:%S %1%2'), |
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129 parents=parents, desc=desc, branch='', |
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130 extra={"p4": change}) |
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131 |
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132 files = [] |
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133 copies = {} |
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134 copiedfiles = [] |
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135 i = 0 |
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136 while ("depotFile%d" % i) in d and ("rev%d" % i) in d: |
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137 oldname = d["depotFile%d" % i] |
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138 filename = None |
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139 for v in vieworder: |
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140 if oldname.startswith(v): |
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141 filename = views[v] + oldname[len(v):] |
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142 break |
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143 if filename: |
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144 files.append((filename, d["rev%d" % i])) |
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145 self.depotname[filename] = oldname |
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146 if (d.get("action%d" % i) == "move/add"): |
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147 copiedfiles.append(filename) |
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148 self.localname[oldname] = filename |
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149 i += 1 |
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150 |
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151 # Collect information about copied files |
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152 for filename in copiedfiles: |
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153 oldname = self.depotname[filename] |
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154 |
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155 flcmd = 'p4 -G filelog %s' \ |
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156 % util.shellquote(oldname) |
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157 flstdout = util.popen(flcmd, mode='rb') |
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158 |
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159 copiedfilename = None |
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160 for d in loaditer(flstdout): |
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161 copiedoldname = None |
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162 |
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163 i = 0 |
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164 while ("change%d" % i) in d: |
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165 if (d["change%d" % i] == change and |
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166 d["action%d" % i] == "move/add"): |
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167 j = 0 |
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168 while ("file%d,%d" % (i, j)) in d: |
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169 if d["how%d,%d" % (i, j)] == "moved from": |
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170 copiedoldname = d["file%d,%d" % (i, j)] |
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171 break |
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172 j += 1 |
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173 i += 1 |
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174 |
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175 if copiedoldname and copiedoldname in self.localname: |
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176 copiedfilename = self.localname[copiedoldname] |
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177 break |
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178 |
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179 if copiedfilename: |
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180 copies[filename] = copiedfilename |
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181 else: |
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182 ui.warn(_("cannot find source for copied file: %s@%s\n") |
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183 % (filename, change)) |
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184 |
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185 self.changeset[change] = c |
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186 self.files[change] = files |
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187 self.copies[change] = copies |
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188 lastid = change |
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189 |
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190 if lastid: |
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191 self.heads = [lastid] |
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192 |
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193 def getheads(self): |
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194 return self.heads |
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195 |
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196 def getfile(self, name, rev): |
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197 cmd = 'p4 -G print %s' \ |
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198 % util.shellquote("%s#%s" % (self.depotname[name], rev)) |
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199 |
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200 lasterror = None |
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201 while True: |
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202 stdout = util.popen(cmd, mode='rb') |
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203 |
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204 mode = None |
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205 contents = "" |
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206 keywords = None |
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207 |
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208 for d in loaditer(stdout): |
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209 code = d["code"] |
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210 data = d.get("data") |
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211 |
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212 if code == "error": |
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213 # if this is the first time error happened |
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214 # re-attempt getting the file |
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215 if not lasterror: |
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216 lasterror = IOError(d["generic"], data) |
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217 # this will exit inner-most for-loop |
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218 break |
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219 else: |
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220 raise lasterror |
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221 |
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222 elif code == "stat": |
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223 action = d.get("action") |
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224 if action in ["purge", "delete", "move/delete"]: |
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225 return None, None |
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226 p4type = self.re_type.match(d["type"]) |
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227 if p4type: |
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228 mode = "" |
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229 flags = ((p4type.group(1) or "") |
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230 + (p4type.group(3) or "")) |
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231 if "x" in flags: |
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232 mode = "x" |
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233 if p4type.group(2) == "symlink": |
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234 mode = "l" |
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235 if "ko" in flags: |
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236 keywords = self.re_keywords_old |
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237 elif "k" in flags: |
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238 keywords = self.re_keywords |
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239 |
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240 elif code == "text" or code == "binary": |
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241 contents += data |
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242 |
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243 lasterror = None |
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244 |
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245 if not lasterror: |
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246 break |
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247 |
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248 if mode is None: |
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249 return None, None |
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250 |
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251 if keywords: |
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252 contents = keywords.sub("$\\1$", contents) |
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253 if mode == "l" and contents.endswith("\n"): |
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254 contents = contents[:-1] |
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255 |
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256 return contents, mode |
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257 |
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258 def getchanges(self, rev, full): |
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259 if full: |
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260 raise util.Abort(_("convert from p4 do not support --full")) |
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261 return self.files[rev], self.copies[rev], set() |
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262 |
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263 def getcommit(self, rev): |
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264 return self.changeset[rev] |
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265 |
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266 def gettags(self): |
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267 return self.tags |
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268 |
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269 def getchangedfiles(self, rev, i): |
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270 return sorted([x[0] for x in self.files[rev]]) |