Mercurial > hg
annotate mercurial/manifest.py @ 14151:1fe82c93b8e2
convert: also catch missing revlogs when introduced in repo roots
The previous behaviour was almost as if convert.hg.ignoreerrors was always set
for revisions without parents, except that errors were silently ignored. Revlog
errors are handled as a side effect of getcopies(), but getcopies() was only
called when convert.hg.ignoreerrors was set.
Now we always call self.getcopies for root revisions, not only when
convert.hg.ignoreerrors is set, just like we do on all other revisions.
The extra call might be a bit expensive, but the proper fix for that would be
to catch these errors in another way.
author | Mads Kiilerich <mads@kiilerich.com> |
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date | Sun, 01 May 2011 17:34:16 +0200 |
parents | ed913fd7837b |
children | d62d597b8974 |
rev | line source |
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1089 | 1 # manifest.py - manifest revision class for mercurial |
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2 # |
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3 # Copyright 2005-2007 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 |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
3891 | 8 from i18n import _ |
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9 import mdiff, parsers, error, revlog |
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10 import array, struct |
79 | 11 |
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12 class manifestdict(dict): |
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13 def __init__(self, mapping=None, flags=None): |
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14 if mapping is None: |
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15 mapping = {} |
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16 if flags is None: |
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17 flags = {} |
2831 | 18 dict.__init__(self, mapping) |
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19 self._flags = flags |
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20 def flags(self, f): |
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21 return self._flags.get(f, "") |
6743 | 22 def set(self, f, flags): |
23 self._flags[f] = flags | |
2831 | 24 def copy(self): |
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25 return manifestdict(self, dict.copy(self._flags)) |
2831 | 26 |
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27 class manifest(revlog.revlog): |
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28 def __init__(self, opener): |
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29 self._mancache = None |
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30 revlog.revlog.__init__(self, opener, "00manifest.i") |
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31 |
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32 def parse(self, lines): |
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33 mfdict = manifestdict() |
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34 parsers.parse_manifest(mfdict, mfdict._flags, lines) |
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35 return mfdict |
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Abstract manifest block parsing.
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36 |
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37 def readdelta(self, node): |
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38 r = self.rev(node) |
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39 return self.parse(mdiff.patchtext(self.revdiff(self.deltaparent(r), r))) |
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40 |
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41 def readfast(self, node): |
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42 '''use the faster of readdelta or read''' |
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43 r = self.rev(node) |
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44 if self.deltaparent(r) in self.parentrevs(r): |
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45 return self.readdelta(node) |
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46 return self.read(node) |
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47 |
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48 def read(self, node): |
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49 if node == revlog.nullid: |
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50 return manifestdict() # don't upset local cache |
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51 if self._mancache and self._mancache[0] == node: |
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52 return self._mancache[1] |
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53 text = self.revision(node) |
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54 arraytext = array.array('c', text) |
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55 mapping = self.parse(text) |
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56 self._mancache = (node, mapping, arraytext) |
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57 return mapping |
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58 |
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59 def _search(self, m, s, lo=0, hi=None): |
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60 '''return a tuple (start, end) that says where to find s within m. |
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61 |
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62 If the string is found m[start:end] are the line containing |
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63 that string. If start == end the string was not found and |
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64 they indicate the proper sorted insertion point. This was |
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65 taken from bisect_left, and modified to find line start/end as |
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66 it goes along. |
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67 |
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68 m should be a buffer or a string |
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69 s is a string''' |
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70 def advance(i, c): |
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71 while i < lenm and m[i] != c: |
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72 i += 1 |
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73 return i |
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74 if not s: |
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75 return (lo, lo) |
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76 lenm = len(m) |
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77 if not hi: |
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78 hi = lenm |
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79 while lo < hi: |
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80 mid = (lo + hi) // 2 |
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81 start = mid |
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82 while start > 0 and m[start - 1] != '\n': |
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83 start -= 1 |
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84 end = advance(start, '\0') |
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85 if m[start:end] < s: |
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86 # we know that after the null there are 40 bytes of sha1 |
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87 # this translates to the bisect lo = mid + 1 |
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88 lo = advance(end + 40, '\n') + 1 |
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89 else: |
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90 # this translates to the bisect hi = mid |
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91 hi = start |
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92 end = advance(lo, '\0') |
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93 found = m[lo:end] |
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94 if s == found: |
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95 # we know that after the null there are 40 bytes of sha1 |
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96 end = advance(end + 40, '\n') |
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97 return (lo, end + 1) |
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98 else: |
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99 return (lo, lo) |
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100 |
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101 def find(self, node, f): |
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102 '''look up entry for a single file efficiently. |
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103 return (node, flags) pair if found, (None, None) if not.''' |
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104 if self._mancache and self._mancache[0] == node: |
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105 return self._mancache[1].get(f), self._mancache[1].flags(f) |
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106 text = self.revision(node) |
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107 start, end = self._search(text, f) |
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108 if start == end: |
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109 return None, None |
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110 l = text[start:end] |
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111 f, n = l.split('\0') |
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112 return revlog.bin(n[:40]), n[40:-1] |
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113 |
2841 | 114 def add(self, map, transaction, link, p1=None, p2=None, |
741 | 115 changed=None): |
644 | 116 # apply the changes collected during the bisect loop to our addlist |
1534 | 117 # return a delta suitable for addrevision |
118 def addlistdelta(addlist, x): | |
119 # start from the bottom up | |
644 | 120 # so changes to the offsets don't mess things up. |
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121 for start, end, content in reversed(x): |
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122 if content: |
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123 addlist[start:end] = array.array('c', content) |
644 | 124 else: |
125 del addlist[start:end] | |
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126 return "".join(struct.pack(">lll", start, end, len(content)) + content |
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127 for start, end, content in x) |
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128 |
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129 def checkforbidden(l): |
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130 for f in l: |
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131 if '\n' in f or '\r' in f: |
7633 | 132 raise error.RevlogError( |
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133 _("'\\n' and '\\r' disallowed in filenames: %r") % f) |
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134 |
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135 # if we're using the cache, make sure it is valid and |
644 | 136 # parented by the same node we're diffing against |
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137 if not (changed and self._mancache and p1 and self._mancache[0] == p1): |
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138 files = sorted(map) |
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139 checkforbidden(files) |
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140 |
1651 | 141 # if this is changed to support newlines in filenames, |
142 # be sure to check the templates/ dir again (especially *-raw.tmpl) | |
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143 hex, flags = revlog.hex, map.flags |
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144 text = ''.join("%s\000%s%s\n" % (f, hex(map[f]), flags(f)) |
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145 for f in files) |
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146 arraytext = array.array('c', text) |
644 | 147 cachedelta = None |
148 else: | |
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149 added, removed = changed |
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150 addlist = self._mancache[2] |
644 | 151 |
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152 checkforbidden(added) |
644 | 153 # combine the changed lists into one list for sorting |
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154 work = [(x, False) for x in added] |
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155 work.extend((x, True) for x in removed) |
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156 # this could use heapq.merge() (from python2.6+) or equivalent |
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157 # since the lists are already sorted |
644 | 158 work.sort() |
159 | |
160 delta = [] | |
1534 | 161 dstart = None |
162 dend = None | |
163 dline = [""] | |
164 start = 0 | |
165 # zero copy representation of addlist as a buffer | |
166 addbuf = buffer(addlist) | |
644 | 167 |
1534 | 168 # start with a readonly loop that finds the offset of |
169 # each line and creates the deltas | |
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170 for f, todelete in work: |
741 | 171 # bs will either be the index of the item or the insert point |
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172 start, end = self._search(addbuf, f, start) |
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173 if not todelete: |
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174 l = "%s\000%s%s\n" % (f, revlog.hex(map[f]), map.flags(f)) |
644 | 175 else: |
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176 if start == end: |
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177 # item we want to delete was not found, error out |
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178 raise AssertionError( |
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179 _("failed to remove %s from manifest") % f) |
1534 | 180 l = "" |
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181 if dstart is not None and dstart <= start and dend >= start: |
1534 | 182 if dend < end: |
183 dend = end | |
184 if l: | |
185 dline.append(l) | |
644 | 186 else: |
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187 if dstart is not None: |
1534 | 188 delta.append([dstart, dend, "".join(dline)]) |
189 dstart = start | |
190 dend = end | |
191 dline = [l] | |
644 | 192 |
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193 if dstart is not None: |
1534 | 194 delta.append([dstart, dend, "".join(dline)]) |
195 # apply the delta to the addlist, and get a delta for addrevision | |
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196 cachedelta = (self.rev(p1), addlistdelta(addlist, delta)) |
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197 arraytext = addlist |
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198 text = buffer(arraytext) |
1534 | 199 |
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200 n = self.addrevision(text, transaction, link, p1, p2, cachedelta) |
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201 self._mancache = (n, map, arraytext) |
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202 |
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203 return n |