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annotate mercurial/ignore.py @ 11109:a2bc2f2d77a9

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subrepo: normalize path part of URLs so that pulling subrepos from webdir works For a "all projects at root" repo layout eg: /main /sub Where subrepos are used such that a clone of main has this layout: ./main/ ./main/.hgsub ./main/sub/ And the .hgsub content is: sub = ../sub This allows a pull from a hgweb where main and sub are exposed at the root (or same directory level) The current code doesn't normalize the path component of a pull url. this results in trying to pull from http://server.com/hg/main/../sub Current hgweb implementation doesn't reduce the path component so this results in a 404 error though everything is setup logically. This patch adresses this 404 error on the puller side normalizing the URLs used for pulling sub repos. For this example, the URL would be reduced to http://server.com/hg/sub Fix + test
author Edouard Gomez <ed.gomez@free.fr>
date Sat, 01 May 2010 23:05:19 +0200
parents 25e572394f5c
children 58c497d0e44d
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1 # ignore.py - ignored file handling for mercurial
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2 #
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3 # Copyright 2007 Matt Mackall <mpm@selenic.com>
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2 or any later version.
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7
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8 from i18n import _
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9 import util, match
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10 import re
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11
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12 _commentre = None
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13
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14 def ignorepats(lines):
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15 '''parse lines (iterable) of .hgignore text, returning a tuple of
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16 (patterns, parse errors). These patterns should be given to compile()
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17 to be validated and converted into a match function.'''
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18 syntaxes = {'re': 'relre:', 'regexp': 'relre:', 'glob': 'relglob:'}
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19 syntax = 'relre:'
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20 patterns = []
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21 warnings = []
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22
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23 for line in lines:
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24 if "#" in line:
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25 global _commentre
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26 if not _commentre:
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27 _commentre = re.compile(r'((^|[^\\])(\\\\)*)#.*')
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28 # remove comments prefixed by an even number of escapes
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29 line = _commentre.sub(r'\1', line)
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30 # fixup properly escaped comments that survived the above
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31 line = line.replace("\\#", "#")
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32 line = line.rstrip()
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33 if not line:
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34 continue
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35
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36 if line.startswith('syntax:'):
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37 s = line[7:].strip()
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38 try:
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39 syntax = syntaxes[s]
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40 except KeyError:
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41 warnings.append(_("ignoring invalid syntax '%s'") % s)
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42 continue
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43 pat = syntax + line
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44 for s, rels in syntaxes.iteritems():
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45 if line.startswith(rels):
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46 pat = line
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47 break
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48 elif line.startswith(s+':'):
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49 pat = rels + line[len(s)+1:]
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50 break
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51 patterns.append(pat)
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52
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53 return patterns, warnings
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54
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55 def ignore(root, files, warn):
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56 '''return matcher covering patterns in 'files'.
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57
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58 the files parsed for patterns include:
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59 .hgignore in the repository root
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60 any additional files specified in the [ui] section of ~/.hgrc
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61
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62 trailing white space is dropped.
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63 the escape character is backslash.
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64 comments start with #.
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65 empty lines are skipped.
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66
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67 lines can be of the following formats:
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69 syntax: regexp # defaults following lines to non-rooted regexps
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70 syntax: glob # defaults following lines to non-rooted globs
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71 re:pattern # non-rooted regular expression
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72 glob:pattern # non-rooted glob
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73 pattern # pattern of the current default type'''
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74
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75 pats = {}
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76 for f in files:
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77 try:
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78 pats[f] = []
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79 fp = open(f)
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80 pats[f], warnings = ignorepats(fp)
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81 for warning in warnings:
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82 warn("%s: %s\n" % (f, warning))
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83 except IOError, inst:
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84 if f != files[0]:
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85 warn(_("skipping unreadable ignore file '%s': %s\n") %
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86 (f, inst.strerror))
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87
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88 allpats = []
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89 [allpats.extend(patlist) for patlist in pats.values()]
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90 if not allpats:
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91 return util.never
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92
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93 try:
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94 ignorefunc = match.match(root, '', [], allpats)
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95 except util.Abort:
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96 # Re-raise an exception where the src is the right file
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97 for f, patlist in pats.iteritems():
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98 try:
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99 match.match(root, '', [], patlist)
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100 except util.Abort, inst:
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101 raise util.Abort('%s: %s' % (f, inst[0]))
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102
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103 return ignorefunc