Mercurial > hg > mercurial-crew-with-dirclash

annotate mercurial/changelog.py @ 4095:6fa7a2d0fc2e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
hgweb: catch util.Abort raised by addchangegroup Right now, if a pretxnchangegroup hook fails, we send some HTML error message to the client and the transaction is not rolled back (issue499). Catching util.Abort allows us to send a decent message to the client and for some reason makes the rollback complete. This patch is not perfect since it doesn't fix the reason why the transaction wasn't rolled back (maybe some circular references?). Also, the transaction is aborted only after we've sent the response back to the client and the "transaction aborted" message ends up in the logs of the web server.
author Alexis S. L. Carvalho <alexis@cecm.usp.br>
date Fri, 16 Feb 2007 05:10:43 -0200
parents 29d91e57d055
children abaee83ce0a6 f9bbcebcacea
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1095
0a18374c0769 changelog: adjust imports, comment
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1 # changelog.py - changelog class for mercurial
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2 #
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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
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8 from revlog import *
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9 from i18n import gettext as _
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10 from demandload import demandload
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11 demandload(globals(), "os time util")
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12
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13 def _string_escape(text):
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14 """
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15 >>> d = {'nl': chr(10), 'bs': chr(92), 'cr': chr(13), 'nul': chr(0)}
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16 >>> s = "ab%(nl)scd%(bs)s%(bs)sn%(nul)sab%(cr)scd%(bs)s%(nl)s" % d
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17 >>> s
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18 'ab\\ncd\\\\\\\\n\\x00ab\\rcd\\\\\\n'
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19 >>> res = _string_escape(s)
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20 >>> s == _string_unescape(res)
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21 True
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22 """
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23 # subset of the string_escape codec
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24 text = text.replace('\\', '\\\\').replace('\n', '\\n').replace('\r', '\\r')
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25 return text.replace('\0', '\\0')
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26
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27 def _string_unescape(text):
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28 return text.decode('string_escape')
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29
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30 class changelog(revlog):
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31 def __init__(self, opener, defversion=REVLOGV0):
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32 revlog.__init__(self, opener, "00changelog.i", "00changelog.d",
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33 defversion)
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34
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35 def decode_extra(self, text):
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36 extra = {}
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37 for l in text.split('\0'):
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38 if not l:
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39 continue
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40 k, v = _string_unescape(l).split(':', 1)
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41 extra[k] = v
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42 return extra
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43
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44 def encode_extra(self, d):
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45 items = [_string_escape(":".join(t)) for t in d.iteritems()]
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46 return "\0".join(items)
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47
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48 def extract(self, text):
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49 """
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50 format used:
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51 nodeid\n : manifest node in ascii
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52 user\n : user, no \n or \r allowed
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53 time tz extra\n : date (time is int or float, timezone is int)
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54 : extra is metadatas, encoded and separated by '\0'
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55 : older versions ignore it
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56 files\n\n : files modified by the cset, no \n or \r allowed
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57 (.*) : comment (free text, ideally utf-8)
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58
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59 changelog v0 doesn't use extra
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60 """
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61 if not text:
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62 return (nullid, "", (0, 0), [], "", {})
0
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63 last = text.index("\n\n")
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64 desc = util.tolocal(text[last + 2:])
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65 l = text[:last].split('\n')
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66 manifest = bin(l[0])
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67 user = util.tolocal(l[1])
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68
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69 extra_data = l[2].split(' ', 2)
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70 if len(extra_data) != 3:
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71 time = float(extra_data.pop(0))
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72 try:
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73 # various tools did silly things with the time zone field.
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74 timezone = int(extra_data[0])
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75 except:
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76 timezone = 0
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77 extra = {}
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78 else:
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79 time, timezone, extra = extra_data
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80 time, timezone = float(time), int(timezone)
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81 extra = self.decode_extra(extra)
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82 files = l[3:]
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83 return (manifest, user, (time, timezone), files, desc, extra)
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84
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85 def read(self, node):
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86 return self.extract(self.revision(node))
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87
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88 def add(self, manifest, list, desc, transaction, p1=None, p2=None,
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89 user=None, date=None, extra={}):
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90
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91 user, desc = util.fromlocal(user), util.fromlocal(desc)
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92
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93 if date:
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94 parseddate = "%d %d" % util.parsedate(date)
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95 else:
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96 parseddate = "%d %d" % util.makedate()
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97 if extra:
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98 extra = self.encode_extra(extra)
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99 parseddate = "%s %s" % (parseddate, extra)
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100 list.sort()
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101 l = [hex(manifest), user, parseddate] + list + ["", desc]
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102 text = "\n".join(l)
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103 return self.addrevision(text, transaction, self.count(), p1, p2)