Mercurial > hg > mercurial-crew-with-dirclash
annotate mercurial/changelog.py @ 3892:2eec996f2fb9
Fix demandload bits of setup.py py2exe support
author | Matt Mackall <mpm@selenic.com> |
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date | Thu, 14 Dec 2006 20:23:25 -0600 |
parents | abaee83ce0a6 |
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1095 | 1 # changelog.py - changelog class for mercurial |
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2 # |
2858 | 3 # Copyright 2005, 2006 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 |
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6 # of the GNU General Public License, incorporated herein by reference. |
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7 |
262 | 8 from revlog import * |
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9 from i18n import gettext as _ |
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10 import os, time, util |
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11 |
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12 def _string_escape(text): |
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13 """ |
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14 >>> d = {'nl': chr(10), 'bs': chr(92), 'cr': chr(13), 'nul': chr(0)} |
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15 >>> s = "ab%(nl)scd%(bs)s%(bs)sn%(nul)sab%(cr)scd%(bs)s%(nl)s" % d |
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16 >>> s |
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17 'ab\\ncd\\\\\\\\n\\x00ab\\rcd\\\\\\n' |
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18 >>> res = _string_escape(s) |
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19 >>> s == _string_unescape(res) |
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20 True |
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21 """ |
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22 # subset of the string_escape codec |
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23 text = text.replace('\\', '\\\\').replace('\n', '\\n').replace('\r', '\\r') |
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24 return text.replace('\0', '\\0') |
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25 |
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26 def _string_unescape(text): |
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27 return text.decode('string_escape') |
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28 |
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29 class changelog(revlog): |
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30 def __init__(self, opener, defversion=REVLOGV0): |
2072 | 31 revlog.__init__(self, opener, "00changelog.i", "00changelog.d", |
32 defversion) | |
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33 |
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34 def decode_extra(self, text): |
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35 extra = {} |
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36 for l in text.split('\0'): |
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37 if not l: |
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38 continue |
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39 k, v = _string_unescape(l).split(':', 1) |
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40 extra[k] = v |
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41 return extra |
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42 |
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43 def encode_extra(self, d): |
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44 items = [_string_escape(":".join(t)) for t in d.iteritems()] |
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45 return "\0".join(items) |
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46 |
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47 def extract(self, text): |
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48 """ |
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49 format used: |
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50 nodeid\n : manifest node in ascii |
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51 user\n : user, no \n or \r allowed |
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52 time tz extra\n : date (time is int or float, timezone is int) |
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53 : extra is metadatas, encoded and separated by '\0' |
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54 : older versions ignore it |
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55 files\n\n : files modified by the cset, no \n or \r allowed |
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56 (.*) : comment (free text, ideally utf-8) |
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57 |
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58 changelog v0 doesn't use extra |
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59 """ |
37 | 60 if not text: |
3427 | 61 return (nullid, "", (0, 0), [], "", {}) |
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62 last = text.index("\n\n") |
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63 desc = util.tolocal(text[last + 2:]) |
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64 l = text[:last].split('\n') |
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65 manifest = bin(l[0]) |
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66 user = util.tolocal(l[1]) |
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67 |
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68 extra_data = l[2].split(' ', 2) |
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69 if len(extra_data) != 3: |
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70 time = float(extra_data.pop(0)) |
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71 try: |
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72 # various tools did silly things with the time zone field. |
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73 timezone = int(extra_data[0]) |
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74 except: |
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75 timezone = 0 |
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76 extra = {} |
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77 else: |
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78 time, timezone, extra = extra_data |
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79 time, timezone = float(time), int(timezone) |
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80 extra = self.decode_extra(extra) |
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81 files = l[3:] |
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82 return (manifest, user, (time, timezone), files, desc, extra) |
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83 |
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84 def read(self, node): |
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85 return self.extract(self.revision(node)) |
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86 |
203 | 87 def add(self, manifest, list, desc, transaction, p1=None, p2=None, |
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88 user=None, date=None, extra={}): |
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89 |
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90 user, desc = util.fromlocal(user), util.fromlocal(desc) |
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91 |
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92 if date: |
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93 parseddate = "%d %d" % util.parsedate(date) |
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94 else: |
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95 parseddate = "%d %d" % util.makedate() |
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96 if extra: |
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97 extra = self.encode_extra(extra) |
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98 parseddate = "%s %s" % (parseddate, extra) |
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99 list.sort() |
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100 l = [hex(manifest), user, parseddate] + list + ["", desc] |
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101 text = "\n".join(l) |
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102 return self.addrevision(text, transaction, self.count(), p1, p2) |