Mercurial > hgsubversion
annotate hgsubversion/maps.py @ 360:27e9fea5d114
Author maps: strip comments.
author | Dirkjan Ochtman <dirkjan@ochtman.nl> |
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date | Thu, 28 May 2009 09:44:47 +0200 |
parents | e74321f6f8a1 |
children | f137231f9d30 |
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Put authormap into a separate file, and make it much better too.
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1 ''' Module for self-contained maps. ''' |
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2 |
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3 import os |
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4 from mercurial import util as hgutil |
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5 |
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6 class AuthorMap(dict): |
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7 '''A mapping from Subversion-style authors to Mercurial-style |
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8 authors, and back. The data is stored persistently on disk. |
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9 |
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10 If the 'hgsubversion.defaultauthors' configuration option is set to false, |
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11 attempting to obtain an unknown author will fail with an Abort. |
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12 ''' |
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13 |
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14 def __init__(self, ui, path, defaulthost=None): |
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15 '''Initialise a new AuthorMap. |
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16 |
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17 The ui argument is used to print diagnostic messages. |
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18 |
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19 The path argument is the location of the backing store, |
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20 typically .hg/authormap. |
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21 ''' |
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22 self.ui = ui |
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23 self.path = path |
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24 if defaulthost: |
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25 self.defaulthost = '@%s' % defaulthost.lstrip('@') |
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26 else: |
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27 self.defaulthost = '' |
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28 self.super = super(AuthorMap, self) |
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29 self.super.__init__() |
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30 self.load(path) |
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31 |
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32 def load(self, path): |
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33 ''' Load mappings from a file at the specified path. ''' |
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34 if not os.path.exists(path): |
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35 return |
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36 self.ui.note('reading authormap from %s\n' % path) |
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37 f = open(path, 'r') |
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38 for number, line in enumerate(f): |
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39 |
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40 line = line.split('#')[0] |
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41 if not line.strip(): |
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42 continue |
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43 |
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44 try: |
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45 src, dst = line.split('=', 1) |
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46 except (IndexError, ValueError): |
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47 msg = 'ignoring line %i in author map %s: %s\n' |
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48 self.ui.warn(msg % (number, path, line.rstrip())) |
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49 continue |
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50 |
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51 src = src.strip() |
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52 dst = dst.strip() |
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53 if src in self and dst != self[src]: |
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54 msg = 'overriding author: "%s" to "%s" (%s)\n' |
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55 self.ui.warn(msg % (self[src], dst, src)) |
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56 else: |
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57 self[src] = dst |
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58 |
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59 f.close() |
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60 |
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61 def __setitem__(self, key, value): |
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62 ''' Similar to dict.__setitem__, but also updates the new mapping in the |
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63 backing store. ''' |
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64 self.super.__setitem__(key, value) |
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65 self.ui.debug('adding author %s to author map\n' % self.path) |
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66 f = open(self.path, 'w+') |
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67 for k, v in self.iteritems(): |
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68 f.write("%s=%s\n" % (k, v)) |
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69 f.close() |
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70 |
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71 def __getitem__(self, author): |
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72 ''' Similar to dict.__getitem__, except in case of an unknown author. |
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73 In such cases, a new value is generated and added to the dictionary |
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74 as well as the backing store. ''' |
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75 if author in self: |
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76 result = self.super.__getitem__(author) |
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77 elif self.ui.configbool('hgsubversion', 'defaultauthors', True): |
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78 self[author] = result = '%s%s' % (author, self.defaulthost) |
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79 msg = 'substituting author "%s" for default "%s"\n' |
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80 self.ui.note(msg % (author, result)) |
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81 else: |
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82 msg = 'author %s has no entry in the author map!' |
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83 raise hgutil.Abort(msg % author) |
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84 self.ui.debug('mapping author "%s" to "%s"\n' % (author, result)) |
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85 return result |
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86 |
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87 def reverselookup(self, author): |
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88 for svnauthor, hgauthor in self.iteritems(): |
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89 if author == hgauthor: |
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90 return svnauthor |
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91 else: |
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92 # Mercurial incorrectly splits at e.g. '.', so we roll our own. |
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93 return author.rsplit('@', 1)[0] |