Mercurial > public > mercurial-scm > hg-stable
annotate mercurial/revlog.py @ 3755:05120e210c65
Use unsigned version format.
This way can use one additional bit, and when encountering invalid revlogs
with the first bit set don't produce python warnings or strange error messages.
| author | Thomas Arendsen Hein <thomas@intevation.de> |
|---|---|
| date | Fri, 01 Dec 2006 23:27:53 +0100 |
| parents | cd25a4a1a265 |
| children | abaee83ce0a6 27230c29bfec |
| rev | line source |
|---|---|
| 1083 | 1 """ |
| 2 revlog.py - storage back-end for mercurial | |
| 3 | |
| 4 This provides efficient delta storage with O(1) retrieve and append | |
| 5 and O(changes) merge between branches | |
| 6 | |
| 2859 | 7 Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> |
| 1083 | 8 |
| 9 This software may be used and distributed according to the terms | |
| 10 of the GNU General Public License, incorporated herein by reference. | |
| 11 """ | |
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| 1089 | 13 from node import * |
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14 from i18n import gettext as _ |
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15 from demandload import demandload |
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16 demandload(globals(), "binascii changegroup errno ancestor mdiff os") |
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17 demandload(globals(), "sha struct util zlib") |
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18 |
| 2072 | 19 # revlog version strings |
| 20 REVLOGV0 = 0 | |
| 21 REVLOGNG = 1 | |
| 22 | |
| 2073 | 23 # revlog flags |
| 24 REVLOGNGINLINEDATA = (1 << 16) | |
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25 REVLOG_DEFAULT_FLAGS = REVLOGNGINLINEDATA |
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26 |
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27 REVLOG_DEFAULT_FORMAT = REVLOGNG |
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28 REVLOG_DEFAULT_VERSION = REVLOG_DEFAULT_FORMAT | REVLOG_DEFAULT_FLAGS |
| 2073 | 29 |
| 30 def flagstr(flag): | |
| 31 if flag == "inline": | |
| 32 return REVLOGNGINLINEDATA | |
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33 raise RevlogError(_("unknown revlog flag %s") % flag) |
| 2073 | 34 |
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35 def hash(text, p1, p2): |
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36 """generate a hash from the given text and its parent hashes |
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37 |
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38 This hash combines both the current file contents and its history |
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39 in a manner that makes it easy to distinguish nodes with the same |
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40 content in the revision graph. |
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41 """ |
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42 l = [p1, p2] |
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43 l.sort() |
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44 s = sha.new(l[0]) |
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45 s.update(l[1]) |
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46 s.update(text) |
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47 return s.digest() |
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48 |
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49 def compress(text): |
| 1083 | 50 """ generate a possibly-compressed representation of text """ |
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51 if not text: return ("", text) |
| 112 | 52 if len(text) < 44: |
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53 if text[0] == '\0': return ("", text) |
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54 return ('u', text) |
| 112 | 55 bin = zlib.compress(text) |
| 56 if len(bin) > len(text): | |
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57 if text[0] == '\0': return ("", text) |
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58 return ('u', text) |
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59 return ("", bin) |
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60 |
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61 def decompress(bin): |
| 1083 | 62 """ decompress the given input """ |
| 112 | 63 if not bin: return bin |
| 64 t = bin[0] | |
| 65 if t == '\0': return bin | |
| 66 if t == 'x': return zlib.decompress(bin) | |
| 67 if t == 'u': return bin[1:] | |
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68 raise RevlogError(_("unknown compression type %r") % t) |
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69 |
| 2072 | 70 indexformatv0 = ">4l20s20s20s" |
| 2079 | 71 v0shaoffset = 56 |
| 2072 | 72 # index ng: |
| 73 # 6 bytes offset | |
| 74 # 2 bytes flags | |
| 75 # 4 bytes compressed length | |
| 76 # 4 bytes uncompressed length | |
| 77 # 4 bytes: base rev | |
| 78 # 4 bytes link rev | |
| 79 # 4 bytes parent 1 rev | |
| 80 # 4 bytes parent 2 rev | |
| 81 # 32 bytes: nodeid | |
| 82 indexformatng = ">Qiiiiii20s12x" | |
| 2079 | 83 ngshaoffset = 32 |
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84 versionformat = ">I" |
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85 |
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86 class lazyparser(object): |
| 1083 | 87 """ |
| 88 this class avoids the need to parse the entirety of large indices | |
| 89 """ | |
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90 |
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91 # lazyparser is not safe to use on windows if win32 extensions not |
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92 # available. it keeps file handle open, which make it not possible |
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93 # to break hardlinks on local cloned repos. |
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94 safe_to_use = os.name != 'nt' or (not util.is_win_9x() and |
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95 hasattr(util, 'win32api')) |
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96 |
| 2079 | 97 def __init__(self, dataf, size, indexformat, shaoffset): |
| 98 self.dataf = dataf | |
| 99 self.format = indexformat | |
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100 self.s = struct.calcsize(indexformat) |
| 2072 | 101 self.indexformat = indexformat |
| 2079 | 102 self.datasize = size |
| 103 self.l = size/self.s | |
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104 self.index = [None] * self.l |
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105 self.map = {nullid: nullrev} |
| 2079 | 106 self.allmap = 0 |
| 323 | 107 self.all = 0 |
| 2079 | 108 self.mapfind_count = 0 |
| 109 self.shaoffset = shaoffset | |
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110 |
| 2079 | 111 def loadmap(self): |
| 112 """ | |
| 113 during a commit, we need to make sure the rev being added is | |
| 114 not a duplicate. This requires loading the entire index, | |
| 115 which is fairly slow. loadmap can load up just the node map, | |
| 116 which takes much less time. | |
| 117 """ | |
| 118 if self.allmap: return | |
| 119 end = self.datasize | |
| 120 self.allmap = 1 | |
| 121 cur = 0 | |
| 122 count = 0 | |
| 123 blocksize = self.s * 256 | |
| 124 self.dataf.seek(0) | |
| 125 while cur < end: | |
| 126 data = self.dataf.read(blocksize) | |
| 127 off = 0 | |
| 128 for x in xrange(256): | |
| 129 n = data[off + self.shaoffset:off + self.shaoffset + 20] | |
| 130 self.map[n] = count | |
| 131 count += 1 | |
| 132 if count >= self.l: | |
| 133 break | |
| 134 off += self.s | |
| 135 cur += blocksize | |
| 136 | |
| 137 def loadblock(self, blockstart, blocksize, data=None): | |
| 323 | 138 if self.all: return |
| 2079 | 139 if data is None: |
| 140 self.dataf.seek(blockstart) | |
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141 if blockstart + blocksize > self.datasize: |
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142 # the revlog may have grown since we've started running, |
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143 # but we don't have space in self.index for more entries. |
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144 # limit blocksize so that we don't get too much data. |
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145 blocksize = max(self.datasize - blockstart, 0) |
| 2079 | 146 data = self.dataf.read(blocksize) |
| 147 lend = len(data) / self.s | |
| 148 i = blockstart / self.s | |
| 149 off = 0 | |
| 150 for x in xrange(lend): | |
| 151 if self.index[i + x] == None: | |
| 152 b = data[off : off + self.s] | |
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153 self.index[i + x] = b |
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154 n = b[self.shaoffset:self.shaoffset + 20] |
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155 self.map[n] = i + x |
| 2079 | 156 off += self.s |
| 157 | |
| 158 def findnode(self, node): | |
| 159 """search backwards through the index file for a specific node""" | |
| 160 if self.allmap: return None | |
| 161 | |
| 162 # hg log will cause many many searches for the manifest | |
| 163 # nodes. After we get called a few times, just load the whole | |
| 164 # thing. | |
| 165 if self.mapfind_count > 8: | |
| 166 self.loadmap() | |
| 167 if node in self.map: | |
| 168 return node | |
| 169 return None | |
| 170 self.mapfind_count += 1 | |
| 171 last = self.l - 1 | |
| 172 while self.index[last] != None: | |
| 173 if last == 0: | |
| 174 self.all = 1 | |
| 175 self.allmap = 1 | |
| 176 return None | |
| 177 last -= 1 | |
| 178 end = (last + 1) * self.s | |
| 179 blocksize = self.s * 256 | |
| 180 while end >= 0: | |
| 181 start = max(end - blocksize, 0) | |
| 182 self.dataf.seek(start) | |
| 183 data = self.dataf.read(end - start) | |
| 184 findend = end - start | |
| 185 while True: | |
| 186 # we're searching backwards, so weh have to make sure | |
| 187 # we don't find a changeset where this node is a parent | |
| 188 off = data.rfind(node, 0, findend) | |
| 189 findend = off | |
| 190 if off >= 0: | |
| 191 i = off / self.s | |
| 192 off = i * self.s | |
| 193 n = data[off + self.shaoffset:off + self.shaoffset + 20] | |
| 194 if n == node: | |
| 195 self.map[n] = i + start / self.s | |
| 196 return node | |
| 197 else: | |
| 198 break | |
| 199 end -= blocksize | |
| 200 return None | |
| 201 | |
| 202 def loadindex(self, i=None, end=None): | |
| 203 if self.all: return | |
| 204 all = False | |
| 205 if i == None: | |
| 206 blockstart = 0 | |
| 207 blocksize = (512 / self.s) * self.s | |
| 208 end = self.datasize | |
| 209 all = True | |
| 323 | 210 else: |
| 2079 | 211 if end: |
| 212 blockstart = i * self.s | |
| 213 end = end * self.s | |
| 214 blocksize = end - blockstart | |
| 215 else: | |
| 216 blockstart = (i & ~(32)) * self.s | |
| 217 blocksize = self.s * 64 | |
| 218 end = blockstart + blocksize | |
| 219 while blockstart < end: | |
| 220 self.loadblock(blockstart, blocksize) | |
| 221 blockstart += blocksize | |
| 222 if all: self.all = True | |
| 515 | 223 |
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224 class lazyindex(object): |
| 1083 | 225 """a lazy version of the index array""" |
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226 def __init__(self, parser): |
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227 self.p = parser |
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228 def __len__(self): |
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229 return len(self.p.index) |
| 115 | 230 def load(self, pos): |
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231 if pos < 0: |
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232 pos += len(self.p.index) |
| 2079 | 233 self.p.loadindex(pos) |
| 115 | 234 return self.p.index[pos] |
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235 def __getitem__(self, pos): |
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236 ret = self.p.index[pos] or self.load(pos) |
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237 if isinstance(ret, str): |
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238 ret = struct.unpack(self.p.indexformat, ret) |
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239 return ret |
| 2072 | 240 def __setitem__(self, pos, item): |
| 241 self.p.index[pos] = item | |
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242 def __delitem__(self, pos): |
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243 del self.p.index[pos] |
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244 def append(self, e): |
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245 self.p.index.append(e) |
| 515 | 246 |
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247 class lazymap(object): |
| 1083 | 248 """a lazy version of the node map""" |
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249 def __init__(self, parser): |
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250 self.p = parser |
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251 def load(self, key): |
| 2079 | 252 n = self.p.findnode(key) |
| 253 if n == None: | |
| 1214 | 254 raise KeyError(key) |
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255 def __contains__(self, key): |
| 2079 | 256 if key in self.p.map: |
| 257 return True | |
| 258 self.p.loadmap() | |
| 323 | 259 return key in self.p.map |
| 97 | 260 def __iter__(self): |
| 469 | 261 yield nullid |
| 97 | 262 for i in xrange(self.p.l): |
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263 ret = self.p.index[i] |
|
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|
264 if not ret: |
| 2079 | 265 self.p.loadindex(i) |
|
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266 ret = self.p.index[i] |
|
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267 if isinstance(ret, str): |
|
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268 ret = struct.unpack(self.p.indexformat, ret) |
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269 yield ret[-1] |
|
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270 def __getitem__(self, key): |
|
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271 try: |
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272 return self.p.map[key] |
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273 except KeyError: |
|
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274 try: |
|
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275 self.load(key) |
|
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276 return self.p.map[key] |
|
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277 except KeyError: |
|
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278 raise KeyError("node " + hex(key)) |
|
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279 def __setitem__(self, key, val): |
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280 self.p.map[key] = val |
|
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281 def __delitem__(self, key): |
|
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282 del self.p.map[key] |
|
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283 |
|
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[PATCH] raise exceptions with Exception subclasses
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284 class RevlogError(Exception): pass |
|
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285 |
|
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286 class revlog(object): |
| 1083 | 287 """ |
| 288 the underlying revision storage object | |
| 289 | |
| 290 A revlog consists of two parts, an index and the revision data. | |
| 291 | |
| 292 The index is a file with a fixed record size containing | |
| 293 information on each revision, includings its nodeid (hash), the | |
| 294 nodeids of its parents, the position and offset of its data within | |
| 295 the data file, and the revision it's based on. Finally, each entry | |
| 296 contains a linkrev entry that can serve as a pointer to external | |
| 297 data. | |
| 298 | |
| 299 The revision data itself is a linear collection of data chunks. | |
| 300 Each chunk represents a revision and is usually represented as a | |
| 301 delta against the previous chunk. To bound lookup time, runs of | |
| 302 deltas are limited to about 2 times the length of the original | |
| 303 version data. This makes retrieval of a version proportional to | |
| 304 its size, or O(1) relative to the number of revisions. | |
| 305 | |
| 306 Both pieces of the revlog are written to in an append-only | |
| 307 fashion, which means we never need to rewrite a file to insert or | |
| 308 remove data, and can use some simple techniques to avoid the need | |
| 309 for locking while reading. | |
| 310 """ | |
|
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311 def __init__(self, opener, indexfile, datafile, |
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312 defversion=REVLOG_DEFAULT_VERSION): |
| 1083 | 313 """ |
| 314 create a revlog object | |
| 315 | |
| 316 opener is a function that abstracts the file opening operation | |
| 317 and can be used to implement COW semantics or the like. | |
| 318 """ | |
|
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319 self.indexfile = indexfile |
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320 self.datafile = datafile |
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321 self.opener = opener |
|
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322 |
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323 self.indexstat = None |
|
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324 self.cache = None |
|
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325 self.chunkcache = None |
| 2072 | 326 self.defversion = defversion |
|
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327 self.load() |
|
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328 |
|
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329 def load(self): |
| 2072 | 330 v = self.defversion |
|
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331 try: |
|
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332 f = self.opener(self.indexfile) |
| 2079 | 333 i = f.read(4) |
| 334 f.seek(0) | |
|
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Make revlog constructor more discerning in its treatment of errors.
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|
335 except IOError, inst: |
|
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|
336 if inst.errno != errno.ENOENT: |
|
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|
337 raise |
|
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338 i = "" |
|
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339 else: |
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340 try: |
|
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341 st = util.fstat(f) |
|
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342 except AttributeError, inst: |
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343 st = None |
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344 else: |
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345 oldst = self.indexstat |
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346 if (oldst and st.st_dev == oldst.st_dev |
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|
347 and st.st_ino == oldst.st_ino |
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348 and st.st_mtime == oldst.st_mtime |
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|
349 and st.st_ctime == oldst.st_ctime): |
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|
350 return |
| 2072 | 351 self.indexstat = st |
|
2138
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Fix revlog-ng interaction with old-http.
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|
352 if len(i) > 0: |
|
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Fix revlog-ng interaction with old-http.
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|
353 v = struct.unpack(versionformat, i)[0] |
| 2073 | 354 flags = v & ~0xFFFF |
| 355 fmt = v & 0xFFFF | |
|
2142
8a1e2a9c7013
Replaced 0 with REVLOGV0 where this meaning is used.
Thomas Arendsen Hein <thomas@intevation.de>
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diff
changeset
|
356 if fmt == REVLOGV0: |
| 2073 | 357 if flags: |
|
3754
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Improve error message for unknown revlog flags.
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|
358 raise RevlogError(_("index %s unknown flags %#04x for format v0") |
|
cd25a4a1a265
Improve error message for unknown revlog flags.
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|
359 % (self.indexfile, flags >> 16)) |
| 2073 | 360 elif fmt == REVLOGNG: |
| 361 if flags & ~REVLOGNGINLINEDATA: | |
|
3754
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Improve error message for unknown revlog flags.
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|
362 raise RevlogError(_("index %s unknown flags %#04x for revlogng") |
|
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|
363 % (self.indexfile, flags >> 16)) |
| 2073 | 364 else: |
|
3743
3a099154b110
Make revlog error slightly less scary
Matt Mackall <mpm@selenic.com>
parents:
3683
diff
changeset
|
365 raise RevlogError(_("index %s unknown format %d") |
|
3680
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
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diff
changeset
|
366 % (self.indexfile, fmt)) |
| 2072 | 367 self.version = v |
|
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|
368 if v == REVLOGV0: |
| 2072 | 369 self.indexformat = indexformatv0 |
| 2079 | 370 shaoffset = v0shaoffset |
| 2072 | 371 else: |
| 372 self.indexformat = indexformatng | |
| 2079 | 373 shaoffset = ngshaoffset |
|
116
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|
374 |
| 2072 | 375 if i: |
|
2250
45aef5ddcdbe
windows: revlog.lazyparser not always safe to use.
Vadim Gelfer <vadim.gelfer@gmail.com>
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diff
changeset
|
376 if (lazyparser.safe_to_use and not self.inlinedata() and |
|
45aef5ddcdbe
windows: revlog.lazyparser not always safe to use.
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diff
changeset
|
377 st and st.st_size > 10000): |
| 2072 | 378 # big index, let's parse it on demand |
| 2079 | 379 parser = lazyparser(f, st.st_size, self.indexformat, shaoffset) |
| 2072 | 380 self.index = lazyindex(parser) |
| 381 self.nodemap = lazymap(parser) | |
| 382 else: | |
|
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Reduce ram used for very large inlined index files
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|
383 self.parseindex(f, st) |
|
2142
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diff
changeset
|
384 if self.version != REVLOGV0: |
| 2072 | 385 e = list(self.index[0]) |
| 386 type = self.ngtype(e[0]) | |
| 387 e[0] = self.offset_type(0, type) | |
| 388 self.index[0] = e | |
|
116
e484cd5ec282
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diff
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|
389 else: |
|
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3508
diff
changeset
|
390 self.nodemap = {nullid: nullrev} |
| 2072 | 391 self.index = [] |
| 392 | |
| 393 | |
|
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changeset
|
394 def parseindex(self, fp, st): |
| 2072 | 395 s = struct.calcsize(self.indexformat) |
| 396 self.index = [] | |
|
3578
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changeset
|
397 self.nodemap = {nullid: nullrev} |
| 2073 | 398 inline = self.inlinedata() |
| 2072 | 399 n = 0 |
|
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|
400 leftover = None |
|
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|
401 while True: |
|
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402 if st: |
|
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|
403 data = fp.read(65536) |
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|
404 else: |
|
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|
405 # hack for httprangereader, it doesn't do partial reads well |
|
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406 data = fp.read() |
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|
407 if not data: |
|
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|
408 break |
|
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|
409 if n == 0 and self.inlinedata(): |
|
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|
410 # cache the first chunk |
|
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changeset
|
411 self.chunkcache = (0, data) |
|
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Fix revlog.parseindex
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|
412 if leftover: |
|
854954fd410a
Fix revlog.parseindex
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changeset
|
413 data = leftover + data |
|
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changeset
|
414 leftover = None |
|
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|
415 off = 0 |
|
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|
416 l = len(data) |
|
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|
417 while off < l: |
|
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changeset
|
418 if l - off < s: |
|
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changeset
|
419 leftover = data[off:] |
|
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changeset
|
420 break |
|
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diff
changeset
|
421 cur = data[off:off + s] |
|
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diff
changeset
|
422 off += s |
|
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|
423 e = struct.unpack(self.indexformat, cur) |
|
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changeset
|
424 self.index.append(e) |
|
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changeset
|
425 self.nodemap[e[-1]] = n |
|
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changeset
|
426 n += 1 |
|
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|
427 if inline: |
|
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|
428 off += e[1] |
|
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diff
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|
429 if off > l: |
|
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Reduce ram used for very large inlined index files
mason@suse.com
parents:
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changeset
|
430 # some things don't seek well, just read it |
|
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parents:
2250
diff
changeset
|
431 fp.read(off - l) |
|
3f38e872f39a
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parents:
2250
diff
changeset
|
432 if not st: |
|
3f38e872f39a
Reduce ram used for very large inlined index files
mason@suse.com
parents:
2250
diff
changeset
|
433 break |
|
2600
c4325f0a9b91
clean up trailing white space.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2561
diff
changeset
|
434 |
|
116
e484cd5ec282
Only use lazy indexing for big indices and avoid the overhead of the
mpm@selenic.com
parents:
115
diff
changeset
|
435 |
| 2072 | 436 def ngoffset(self, q): |
| 437 if q & 0xFFFF: | |
| 438 raise RevlogError(_('%s: incompatible revision flag %x') % | |
|
2141
ed631e83fa06
Corrected error message for incompatible revision flags.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
2138
diff
changeset
|
439 (self.indexfile, q)) |
| 2072 | 440 return long(q >> 16) |
| 441 | |
| 442 def ngtype(self, q): | |
| 443 return int(q & 0xFFFF) | |
|
116
e484cd5ec282
Only use lazy indexing for big indices and avoid the overhead of the
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parents:
115
diff
changeset
|
444 |
| 2072 | 445 def offset_type(self, offset, type): |
| 446 return long(long(offset) << 16 | type) | |
| 447 | |
| 2079 | 448 def loadindex(self, start, end): |
| 449 """load a block of indexes all at once from the lazy parser""" | |
| 450 if isinstance(self.index, lazyindex): | |
| 451 self.index.p.loadindex(start, end) | |
| 452 | |
| 2072 | 453 def loadindexmap(self): |
| 454 """loads both the map and the index from the lazy parser""" | |
| 455 if isinstance(self.index, lazyindex): | |
| 456 p = self.index.p | |
| 2079 | 457 p.loadindex() |
| 458 self.nodemap = p.map | |
| 459 | |
| 460 def loadmap(self): | |
| 461 """loads the map from the lazy parser""" | |
| 462 if isinstance(self.nodemap, lazymap): | |
| 463 self.nodemap.p.loadmap() | |
| 464 self.nodemap = self.nodemap.p.map | |
|
0
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diff
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|
465 |
| 2073 | 466 def inlinedata(self): return self.version & REVLOGNGINLINEDATA |
|
0
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|
467 def tip(self): return self.node(len(self.index) - 1) |
|
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changeset
|
468 def count(self): return len(self.index) |
| 2072 | 469 def node(self, rev): |
|
3585
cac2c17bec5a
revlog: more nullrev fixes
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3584
diff
changeset
|
470 return rev == nullrev and nullid or self.index[rev][-1] |
|
1201
59bfbdbc38f6
revlog: raise informative exception if file is missing.
Bryan O'Sullivan <bos@serpentine.com>
parents:
1099
diff
changeset
|
471 def rev(self, node): |
|
59bfbdbc38f6
revlog: raise informative exception if file is missing.
Bryan O'Sullivan <bos@serpentine.com>
parents:
1099
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|
472 try: |
|
59bfbdbc38f6
revlog: raise informative exception if file is missing.
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parents:
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|
473 return self.nodemap[node] |
|
59bfbdbc38f6
revlog: raise informative exception if file is missing.
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parents:
1099
diff
changeset
|
474 except KeyError: |
|
1402
9d2c2e6b32b5
i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1400
diff
changeset
|
475 raise RevlogError(_('%s: no node %s') % (self.indexfile, hex(node))) |
|
2642
6414ee2eb688
correct the handling of linkrev with nullid
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
2641
diff
changeset
|
476 def linkrev(self, node): |
|
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
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parents:
3508
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changeset
|
477 return (node == nullid) and nullrev or self.index[self.rev(node)][-4] |
| 2 | 478 def parents(self, node): |
| 479 if node == nullid: return (nullid, nullid) | |
| 2072 | 480 r = self.rev(node) |
| 481 d = self.index[r][-3:-1] | |
|
2142
8a1e2a9c7013
Replaced 0 with REVLOGV0 where this meaning is used.
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parents:
2141
diff
changeset
|
482 if self.version == REVLOGV0: |
| 2072 | 483 return d |
|
3508
0aef94f45ebf
revlog.py: always return tuples from parents and parentrevs
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3490
diff
changeset
|
484 return (self.node(d[0]), self.node(d[1])) |
|
2489
568e58eed096
Add revlog.parentrevs function.
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
2354
diff
changeset
|
485 def parentrevs(self, rev): |
|
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
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|
486 if rev == nullrev: |
|
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
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parents:
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|
487 return (nullrev, nullrev) |
|
2489
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parents:
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|
488 d = self.index[rev][-3:-1] |
|
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parents:
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diff
changeset
|
489 if self.version == REVLOGV0: |
|
3508
0aef94f45ebf
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parents:
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diff
changeset
|
490 return (self.rev(d[0]), self.rev(d[1])) |
|
2489
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parents:
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diff
changeset
|
491 return d |
| 2072 | 492 def start(self, rev): |
|
3585
cac2c17bec5a
revlog: more nullrev fixes
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parents:
3584
diff
changeset
|
493 if rev == nullrev: |
|
3584
8dbbe4dadb48
revlog: return 0 as offset for nullid
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3582
diff
changeset
|
494 return 0 |
|
2142
8a1e2a9c7013
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Thomas Arendsen Hein <thomas@intevation.de>
parents:
2141
diff
changeset
|
495 if self.version != REVLOGV0: |
| 2072 | 496 return self.ngoffset(self.index[rev][0]) |
| 497 return self.index[rev][0] | |
|
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parents:
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498 |
| 2072 | 499 def end(self, rev): return self.start(rev) + self.length(rev) |
|
0
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diff
changeset
|
500 |
|
2078
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parents:
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|
501 def size(self, rev): |
|
441ea218414e
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parents:
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diff
changeset
|
502 """return the length of the uncompressed text for a given revision""" |
|
3582
9fb7d3a05882
revlog.size() fix handling of rev == -1
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3578
diff
changeset
|
503 if rev == nullrev: |
|
9fb7d3a05882
revlog.size() fix handling of rev == -1
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3578
diff
changeset
|
504 return 0 |
|
2078
441ea218414e
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parents:
2077
diff
changeset
|
505 l = -1 |
|
2142
8a1e2a9c7013
Replaced 0 with REVLOGV0 where this meaning is used.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
2141
diff
changeset
|
506 if self.version != REVLOGV0: |
|
2078
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parents:
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diff
changeset
|
507 l = self.index[rev][2] |
|
441ea218414e
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diff
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|
508 if l >= 0: |
|
441ea218414e
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parents:
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diff
changeset
|
509 return l |
|
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parents:
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diff
changeset
|
510 |
|
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parents:
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diff
changeset
|
511 t = self.revision(self.node(rev)) |
|
441ea218414e
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|
512 return len(t) |
|
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parents:
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diff
changeset
|
513 |
|
441ea218414e
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parents:
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diff
changeset
|
514 # alternate implementation, The advantage to this code is it |
|
441ea218414e
Fill in the uncompressed size during revlog.addgroup
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parents:
2077
diff
changeset
|
515 # will be faster for a single revision. But, the results are not |
|
441ea218414e
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|
516 # cached, so finding the size of every revision will be slower. |
|
441ea218414e
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|
517 """ |
|
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|
518 if self.cache and self.cache[1] == rev: |
|
441ea218414e
Fill in the uncompressed size during revlog.addgroup
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parents:
2077
diff
changeset
|
519 return len(self.cache[2]) |
|
441ea218414e
Fill in the uncompressed size during revlog.addgroup
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parents:
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diff
changeset
|
520 |
|
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
521 base = self.base(rev) |
|
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diff
changeset
|
522 if self.cache and self.cache[1] >= base and self.cache[1] < rev: |
|
441ea218414e
Fill in the uncompressed size during revlog.addgroup
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diff
changeset
|
523 base = self.cache[1] |
|
441ea218414e
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parents:
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diff
changeset
|
524 text = self.cache[2] |
|
441ea218414e
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parents:
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diff
changeset
|
525 else: |
|
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parents:
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diff
changeset
|
526 text = self.revision(self.node(base)) |
|
441ea218414e
Fill in the uncompressed size during revlog.addgroup
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parents:
2077
diff
changeset
|
527 |
|
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
528 l = len(text) |
|
441ea218414e
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parents:
2077
diff
changeset
|
529 for x in xrange(base + 1, rev + 1): |
|
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parents:
2077
diff
changeset
|
530 l = mdiff.patchedsize(l, self.chunk(x)) |
|
441ea218414e
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mason@suse.com
parents:
2077
diff
changeset
|
531 return l |
|
441ea218414e
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mason@suse.com
parents:
2077
diff
changeset
|
532 """ |
|
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mason@suse.com
parents:
2077
diff
changeset
|
533 |
|
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
534 def length(self, rev): |
|
3585
cac2c17bec5a
revlog: more nullrev fixes
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3584
diff
changeset
|
535 if rev == nullrev: |
|
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
536 return 0 |
|
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
537 else: |
|
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
538 return self.index[rev][1] |
|
3585
cac2c17bec5a
revlog: more nullrev fixes
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parents:
3584
diff
changeset
|
539 def base(self, rev): |
|
cac2c17bec5a
revlog: more nullrev fixes
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parents:
3584
diff
changeset
|
540 if (rev == nullrev): |
|
cac2c17bec5a
revlog: more nullrev fixes
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parents:
3584
diff
changeset
|
541 return nullrev |
|
cac2c17bec5a
revlog: more nullrev fixes
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parents:
3584
diff
changeset
|
542 else: |
|
cac2c17bec5a
revlog: more nullrev fixes
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parents:
3584
diff
changeset
|
543 return self.index[rev][-5] |
|
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
544 |
|
3630
508036290b00
revlog: reachable actually takes a node
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parents:
3585
diff
changeset
|
545 def reachable(self, node, stop=None): |
| 3683 | 546 """return a hash of all nodes ancestral to a given node, including |
| 547 the node itself, stopping when stop is matched""" | |
|
1074
55bf5cfde69e
Add revlog.reachable to find a graph of ancestors for a given rev
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parents:
1073
diff
changeset
|
548 reachable = {} |
|
3630
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parents:
3585
diff
changeset
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549 visit = [node] |
|
508036290b00
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parents:
3585
diff
changeset
|
550 reachable[node] = 1 |
|
1074
55bf5cfde69e
Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents:
1073
diff
changeset
|
551 if stop: |
|
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parents:
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diff
changeset
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552 stopn = self.rev(stop) |
|
55bf5cfde69e
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mason@suse.com
parents:
1073
diff
changeset
|
553 else: |
|
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parents:
1073
diff
changeset
|
554 stopn = 0 |
|
55bf5cfde69e
Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents:
1073
diff
changeset
|
555 while visit: |
|
55bf5cfde69e
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mason@suse.com
parents:
1073
diff
changeset
|
556 n = visit.pop(0) |
|
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parents:
1073
diff
changeset
|
557 if n == stop: |
|
55bf5cfde69e
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mason@suse.com
parents:
1073
diff
changeset
|
558 continue |
|
55bf5cfde69e
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parents:
1073
diff
changeset
|
559 if n == nullid: |
|
55bf5cfde69e
Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents:
1073
diff
changeset
|
560 continue |
|
55bf5cfde69e
Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents:
1073
diff
changeset
|
561 for p in self.parents(n): |
|
55bf5cfde69e
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parents:
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diff
changeset
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562 if self.rev(p) < stopn: |
|
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Add revlog.reachable to find a graph of ancestors for a given rev
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parents:
1073
diff
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563 continue |
|
55bf5cfde69e
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parents:
1073
diff
changeset
|
564 if p not in reachable: |
|
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diff
changeset
|
565 reachable[p] = 1 |
|
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parents:
1073
diff
changeset
|
566 visit.append(p) |
|
55bf5cfde69e
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mason@suse.com
parents:
1073
diff
changeset
|
567 return reachable |
|
55bf5cfde69e
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mason@suse.com
parents:
1073
diff
changeset
|
568 |
|
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
569 def nodesbetween(self, roots=None, heads=None): |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
570 """Return a tuple containing three elements. Elements 1 and 2 contain |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
571 a final list bases and heads after all the unreachable ones have been |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
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572 pruned. Element 0 contains a topologically sorted list of all |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
573 |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
574 nodes that satisfy these constraints: |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
575 1. All nodes must be descended from a node in roots (the nodes on |
|
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576 roots are considered descended from themselves). |
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577 2. All nodes must also be ancestors of a node in heads (the nodes in |
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578 heads are considered to be their own ancestors). |
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579 |
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580 If roots is unspecified, nullid is assumed as the only root. |
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581 If heads is unspecified, it is taken to be the output of the |
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582 heads method (i.e. a list of all nodes in the repository that |
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583 have no children).""" |
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584 nonodes = ([], [], []) |
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585 if roots is not None: |
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586 roots = list(roots) |
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587 if not roots: |
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588 return nonodes |
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589 lowestrev = min([self.rev(n) for n in roots]) |
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590 else: |
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591 roots = [nullid] # Everybody's a descendent of nullid |
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592 lowestrev = nullrev |
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593 if (lowestrev == nullrev) and (heads is None): |
|
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594 # We want _all_ the nodes! |
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595 return ([self.node(r) for r in xrange(0, self.count())], |
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596 [nullid], list(self.heads())) |
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597 if heads is None: |
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598 # All nodes are ancestors, so the latest ancestor is the last |
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599 # node. |
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600 highestrev = self.count() - 1 |
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601 # Set ancestors to None to signal that every node is an ancestor. |
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602 ancestors = None |
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603 # Set heads to an empty dictionary for later discovery of heads |
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604 heads = {} |
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605 else: |
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606 heads = list(heads) |
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607 if not heads: |
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608 return nonodes |
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609 ancestors = {} |
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610 # Turn heads into a dictionary so we can remove 'fake' heads. |
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611 # Also, later we will be using it to filter out the heads we can't |
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612 # find from roots. |
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613 heads = dict.fromkeys(heads, 0) |
|
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614 # Start at the top and keep marking parents until we're done. |
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615 nodestotag = heads.keys() |
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616 # Remember where the top was so we can use it as a limit later. |
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617 highestrev = max([self.rev(n) for n in nodestotag]) |
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618 while nodestotag: |
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619 # grab a node to tag |
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620 n = nodestotag.pop() |
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621 # Never tag nullid |
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622 if n == nullid: |
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623 continue |
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624 # A node's revision number represents its place in a |
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625 # topologically sorted list of nodes. |
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626 r = self.rev(n) |
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627 if r >= lowestrev: |
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628 if n not in ancestors: |
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629 # If we are possibly a descendent of one of the roots |
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630 # and we haven't already been marked as an ancestor |
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631 ancestors[n] = 1 # Mark as ancestor |
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632 # Add non-nullid parents to list of nodes to tag. |
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633 nodestotag.extend([p for p in self.parents(n) if |
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634 p != nullid]) |
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635 elif n in heads: # We've seen it before, is it a fake head? |
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636 # So it is, real heads should not be the ancestors of |
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637 # any other heads. |
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638 heads.pop(n) |
|
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639 if not ancestors: |
|
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640 return nonodes |
|
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641 # Now that we have our set of ancestors, we want to remove any |
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642 # roots that are not ancestors. |
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643 |
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644 # If one of the roots was nullid, everything is included anyway. |
|
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|
645 if lowestrev > nullrev: |
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646 # But, since we weren't, let's recompute the lowest rev to not |
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647 # include roots that aren't ancestors. |
|
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648 |
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649 # Filter out roots that aren't ancestors of heads |
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650 roots = [n for n in roots if n in ancestors] |
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651 # Recompute the lowest revision |
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652 if roots: |
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653 lowestrev = min([self.rev(n) for n in roots]) |
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654 else: |
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655 # No more roots? Return empty list |
|
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656 return nonodes |
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657 else: |
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658 # We are descending from nullid, and don't need to care about |
|
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659 # any other roots. |
|
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660 lowestrev = nullrev |
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661 roots = [nullid] |
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662 # Transform our roots list into a 'set' (i.e. a dictionary where the |
|
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663 # values don't matter. |
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664 descendents = dict.fromkeys(roots, 1) |
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665 # Also, keep the original roots so we can filter out roots that aren't |
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666 # 'real' roots (i.e. are descended from other roots). |
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667 roots = descendents.copy() |
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668 # Our topologically sorted list of output nodes. |
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669 orderedout = [] |
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670 # Don't start at nullid since we don't want nullid in our output list, |
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671 # and if nullid shows up in descedents, empty parents will look like |
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672 # they're descendents. |
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673 for r in xrange(max(lowestrev, 0), highestrev + 1): |
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674 n = self.node(r) |
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675 isdescendent = False |
|
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676 if lowestrev == nullrev: # Everybody is a descendent of nullid |
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677 isdescendent = True |
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678 elif n in descendents: |
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679 # n is already a descendent |
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680 isdescendent = True |
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681 # This check only needs to be done here because all the roots |
|
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682 # will start being marked is descendents before the loop. |
|
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This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
683 if n in roots: |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
684 # If n was a root, check if it's a 'real' root. |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
685 p = tuple(self.parents(n)) |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
686 # If any of its parents are descendents, it's not a root. |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
687 if (p[0] in descendents) or (p[1] in descendents): |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
688 roots.pop(n) |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
689 else: |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
690 p = tuple(self.parents(n)) |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
691 # A node is a descendent if either of its parents are |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
692 # descendents. (We seeded the dependents list with the roots |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
693 # up there, remember?) |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
694 if (p[0] in descendents) or (p[1] in descendents): |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
695 descendents[n] = 1 |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
696 isdescendent = True |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
697 if isdescendent and ((ancestors is None) or (n in ancestors)): |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
698 # Only include nodes that are both descendents and ancestors. |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
699 orderedout.append(n) |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
700 if (ancestors is not None) and (n in heads): |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
701 # We're trying to figure out which heads are reachable |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
702 # from roots. |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
703 # Mark this head as having been reached |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
704 heads[n] = 1 |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
705 elif ancestors is None: |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
706 # Otherwise, we're trying to discover the heads. |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
707 # Assume this is a head because if it isn't, the next step |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
708 # will eventually remove it. |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
709 heads[n] = 1 |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
710 # But, obviously its parents aren't. |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
711 for p in self.parents(n): |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
712 heads.pop(p, None) |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
713 heads = [n for n in heads.iterkeys() if heads[n] != 0] |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
714 roots = roots.keys() |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
715 assert orderedout |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
716 assert roots |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
717 assert heads |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
718 return (orderedout, roots, heads) |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
719 |
|
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
720 def heads(self, start=None): |
|
1550
ccb9b62de892
add a -r/--rev option to heads to show only heads descendant from rev
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1535
diff
changeset
|
721 """return the list of all nodes that have no children |
|
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
722 |
|
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
723 if start is specified, only heads that are descendants of |
|
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
724 start will be returned |
|
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
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diff
changeset
|
725 |
|
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
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diff
changeset
|
726 """ |
|
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
727 if start is None: |
|
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
728 start = nullid |
|
1550
ccb9b62de892
add a -r/--rev option to heads to show only heads descendant from rev
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1535
diff
changeset
|
729 startrev = self.rev(start) |
|
2490
6ff82ec1f4b8
Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
2489
diff
changeset
|
730 reachable = {startrev: 1} |
|
6ff82ec1f4b8
Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
2489
diff
changeset
|
731 heads = {startrev: 1} |
| 1083 | 732 |
|
2490
6ff82ec1f4b8
Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
2489
diff
changeset
|
733 parentrevs = self.parentrevs |
|
1550
ccb9b62de892
add a -r/--rev option to heads to show only heads descendant from rev
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1535
diff
changeset
|
734 for r in xrange(startrev + 1, self.count()): |
|
2490
6ff82ec1f4b8
Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
2489
diff
changeset
|
735 for p in parentrevs(r): |
|
6ff82ec1f4b8
Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
2489
diff
changeset
|
736 if p in reachable: |
|
6ff82ec1f4b8
Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
2489
diff
changeset
|
737 reachable[r] = 1 |
|
6ff82ec1f4b8
Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
2489
diff
changeset
|
738 heads[r] = 1 |
|
6ff82ec1f4b8
Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
2489
diff
changeset
|
739 if p in heads: |
|
6ff82ec1f4b8
Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
2489
diff
changeset
|
740 del heads[p] |
|
6ff82ec1f4b8
Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
2489
diff
changeset
|
741 return [self.node(r) for r in heads] |
| 370 | 742 |
| 743 def children(self, node): | |
| 1083 | 744 """find the children of a given node""" |
| 370 | 745 c = [] |
| 746 p = self.rev(node) | |
| 747 for r in range(p + 1, self.count()): | |
|
3474
fd8f1110562c
fix errors spotted by pychecker
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3470
diff
changeset
|
748 for pr in self.parentrevs(r): |
|
3470
c6773b7ebee8
revlog.children: use parentrevs instead of parents
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3438
diff
changeset
|
749 if pr == p: |
|
c6773b7ebee8
revlog.children: use parentrevs instead of parents
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3438
diff
changeset
|
750 c.append(self.node(r)) |
| 370 | 751 return c |
| 515 | 752 |
|
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
753 def _match(self, id): |
|
3210
7240f9e47144
correctly find the type of 'id' in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3157
diff
changeset
|
754 if isinstance(id, (long, int)): |
|
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
755 # rev |
|
2641
156fb1feab62
lookup should allow -1 to represent nullid (if passed an int as arg)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
2600
diff
changeset
|
756 return self.node(id) |
| 3438 | 757 if len(id) == 20: |
| 758 # possibly a binary node | |
| 759 # odds of a binary node being all hex in ASCII are 1 in 10**25 | |
| 760 try: | |
| 761 node = id | |
| 762 r = self.rev(node) # quick search the index | |
| 763 return node | |
| 764 except RevlogError: | |
| 765 pass # may be partial hex id | |
|
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
766 try: |
|
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
767 # str(rev) |
|
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
768 rev = int(id) |
| 469 | 769 if str(rev) != id: raise ValueError |
| 770 if rev < 0: rev = self.count() + rev | |
|
476
0a338d506268
Really _call_ method revlog.count in revlog.lookup()
Thomas Arendsen Hein <thomas@intevation.de>
parents:
469
diff
changeset
|
771 if rev < 0 or rev >= self.count(): raise ValueError |
|
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
772 return self.node(rev) |
| 469 | 773 except (ValueError, OverflowError): |
|
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
774 pass |
|
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
775 if len(id) == 40: |
|
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
776 try: |
| 3438 | 777 # a full hex nodeid? |
| 778 node = bin(id) | |
| 779 r = self.rev(node) | |
|
3157
4fe41a9e4591
optimize revlog.lookup when passed hex(node)[:...]
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3156
diff
changeset
|
780 return node |
|
3453
dba3cadef789
Only look up tags and branches as a last resort
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parents:
3438
diff
changeset
|
781 except TypeError: |
|
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
782 pass |
|
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
783 |
|
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
784 def _partialmatch(self, id): |
|
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
785 if len(id) < 40: |
|
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
786 try: |
| 3438 | 787 # hex(node)[:...] |
| 788 bin_id = bin(id[:len(id) & ~1]) # grab an even number of digits | |
| 789 node = None | |
| 790 for n in self.nodemap: | |
| 791 if n.startswith(bin_id) and hex(n).startswith(id): | |
| 792 if node is not None: | |
| 793 raise RevlogError(_("Ambiguous identifier")) | |
| 794 node = n | |
| 795 if node is not None: | |
| 796 return node | |
|
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
797 except TypeError: |
|
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
798 pass |
|
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
799 |
|
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
800 def lookup(self, id): |
|
dba3cadef789
Only look up tags and branches as a last resort
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parents:
3438
diff
changeset
|
801 """locate a node based on: |
|
dba3cadef789
Only look up tags and branches as a last resort
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parents:
3438
diff
changeset
|
802 - revision number or str(revision number) |
|
dba3cadef789
Only look up tags and branches as a last resort
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parents:
3438
diff
changeset
|
803 - nodeid or subset of hex nodeid |
|
dba3cadef789
Only look up tags and branches as a last resort
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parents:
3438
diff
changeset
|
804 """ |
|
dba3cadef789
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parents:
3438
diff
changeset
|
805 |
|
dba3cadef789
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Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
806 n = self._match(id) |
|
dba3cadef789
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parents:
3438
diff
changeset
|
807 if n is not None: |
|
dba3cadef789
Only look up tags and branches as a last resort
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parents:
3438
diff
changeset
|
808 return n |
|
dba3cadef789
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parents:
3438
diff
changeset
|
809 n = self._partialmatch(id) |
|
dba3cadef789
Only look up tags and branches as a last resort
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parents:
3438
diff
changeset
|
810 if n: |
|
dba3cadef789
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parents:
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diff
changeset
|
811 return n |
| 515 | 812 |
| 2777 | 813 raise RevlogError(_("No match found")) |
|
36
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Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
814 |
|
2890
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
815 def cmp(self, node, text): |
|
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
816 """compare text with a given file revision""" |
|
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
817 p1, p2 = self.parents(node) |
|
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
818 return hash(text, p1, p2) != node |
|
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
819 |
|
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
820 def makenode(self, node, text): |
|
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
821 """calculate a file nodeid for text, descended or possibly |
|
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
822 unchanged from node""" |
|
5df3e5cf16bc
Move cmp bits from filelog to revlog
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parents:
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diff
changeset
|
823 |
|
5df3e5cf16bc
Move cmp bits from filelog to revlog
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parents:
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diff
changeset
|
824 if self.cmp(node, text): |
|
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Move cmp bits from filelog to revlog
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parents:
2859
diff
changeset
|
825 return hash(text, node, nullid) |
|
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Move cmp bits from filelog to revlog
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parents:
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diff
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|
826 return node |
|
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Move cmp bits from filelog to revlog
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parents:
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diff
changeset
|
827 |
|
0
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Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
828 def diff(self, a, b): |
| 1083 | 829 """return a delta between two revisions""" |
|
0
9117c6561b0b
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mpm@selenic.com
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diff
changeset
|
830 return mdiff.textdiff(a, b) |
|
9117c6561b0b
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parents:
diff
changeset
|
831 |
| 73 | 832 def patches(self, t, pl): |
| 1083 | 833 """apply a list of patches to a string""" |
| 73 | 834 return mdiff.patches(t, pl) |
| 835 | |
| 2072 | 836 def chunk(self, rev, df=None, cachelen=4096): |
|
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cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
837 start, length = self.start(rev), self.length(rev) |
| 2073 | 838 inline = self.inlinedata() |
| 839 if inline: | |
| 840 start += (rev + 1) * struct.calcsize(self.indexformat) | |
|
1598
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cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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diff
changeset
|
841 end = start + length |
| 2072 | 842 def loadcache(df): |
| 843 cache_length = max(cachelen, length) # 4k | |
| 844 if not df: | |
| 2073 | 845 if inline: |
| 846 df = self.opener(self.indexfile) | |
| 847 else: | |
| 848 df = self.opener(self.datafile) | |
|
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
849 df.seek(start) |
|
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
850 self.chunkcache = (start, df.read(cache_length)) |
|
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
851 |
|
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
852 if not self.chunkcache: |
| 2072 | 853 loadcache(df) |
|
1598
14d1f1868bf6
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
854 |
|
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
855 cache_start = self.chunkcache[0] |
|
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
856 cache_end = cache_start + len(self.chunkcache[1]) |
|
14d1f1868bf6
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
857 if start >= cache_start and end <= cache_end: |
|
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
858 # it is cached |
|
14d1f1868bf6
cleanup of revlog.group when repository is local
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parents:
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diff
changeset
|
859 offset = start - cache_start |
|
14d1f1868bf6
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parents:
1559
diff
changeset
|
860 else: |
| 2072 | 861 loadcache(df) |
|
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parents:
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diff
changeset
|
862 offset = 0 |
|
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cleanup of revlog.group when repository is local
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parents:
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changeset
|
863 |
|
14d1f1868bf6
cleanup of revlog.group when repository is local
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diff
changeset
|
864 #def checkchunk(): |
|
14d1f1868bf6
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diff
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|
865 # df = self.opener(self.datafile) |
|
14d1f1868bf6
cleanup of revlog.group when repository is local
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|
866 # df.seek(start) |
|
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cleanup of revlog.group when repository is local
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parents:
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diff
changeset
|
867 # return df.read(length) |
|
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cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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diff
changeset
|
868 #assert s == checkchunk() |
|
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cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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diff
changeset
|
869 return decompress(self.chunkcache[1][offset:offset + length]) |
|
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cleanup of revlog.group when repository is local
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parents:
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diff
changeset
|
870 |
|
119
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Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
871 def delta(self, node): |
| 1083 | 872 """return or calculate a delta between a node and its predecessor""" |
|
119
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Add code to retrieve or construct a revlog delta
mpm@selenic.com
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117
diff
changeset
|
873 r = self.rev(node) |
|
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
874 return self.revdiff(r - 1, r) |
|
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
875 |
|
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
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parents:
1853
diff
changeset
|
876 def revdiff(self, rev1, rev2): |
|
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
877 """return or calculate a delta between two revisions""" |
|
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
878 b1 = self.base(rev1) |
|
7518823709a2
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parents:
1853
diff
changeset
|
879 b2 = self.base(rev2) |
|
7518823709a2
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parents:
1853
diff
changeset
|
880 if b1 == b2 and rev1 + 1 == rev2: |
|
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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diff
changeset
|
881 return self.chunk(rev2) |
|
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
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diff
changeset
|
882 else: |
|
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
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parents:
1853
diff
changeset
|
883 return self.diff(self.revision(self.node(rev1)), |
|
7518823709a2
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
884 self.revision(self.node(rev2))) |
|
119
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diff
changeset
|
885 |
|
0
9117c6561b0b
Add back links from file revisions to changeset revisions
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changeset
|
886 def revision(self, node): |
| 1083 | 887 """return an uncompressed revision of a given""" |
|
36
da28286bf6b7
Add smart node lookup by substring or by rev number
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parents:
26
diff
changeset
|
888 if node == nullid: return "" |
|
0
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Add back links from file revisions to changeset revisions
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changeset
|
889 if self.cache and self.cache[0] == node: return self.cache[2] |
|
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changeset
|
890 |
| 1083 | 891 # look up what we need to read |
|
0
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changeset
|
892 text = None |
|
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parents:
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changeset
|
893 rev = self.rev(node) |
|
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
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changeset
|
894 base = self.base(rev) |
|
0
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Add back links from file revisions to changeset revisions
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diff
changeset
|
895 |
| 2073 | 896 if self.inlinedata(): |
| 897 # we probably have the whole chunk cached | |
| 898 df = None | |
| 899 else: | |
| 900 df = self.opener(self.datafile) | |
| 2072 | 901 |
| 1083 | 902 # do we have useful data cached? |
|
0
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parents:
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changeset
|
903 if self.cache and self.cache[1] >= base and self.cache[1] < rev: |
|
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|
904 base = self.cache[1] |
|
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changeset
|
905 text = self.cache[2] |
| 2079 | 906 self.loadindex(base, rev + 1) |
|
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cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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diff
changeset
|
907 else: |
| 2079 | 908 self.loadindex(base, rev + 1) |
| 2072 | 909 text = self.chunk(base, df=df) |
|
0
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Add back links from file revisions to changeset revisions
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parents:
diff
changeset
|
910 |
|
71
47c9a869adee
Add mdiff.patches to speed up applying thousands of patches to the manifest
mpm@selenic.com
parents:
67
diff
changeset
|
911 bins = [] |
| 64 | 912 for r in xrange(base + 1, rev + 1): |
| 2072 | 913 bins.append(self.chunk(r, df=df)) |
|
0
9117c6561b0b
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diff
changeset
|
914 |
|
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
915 text = self.patches(text, bins) |
|
71
47c9a869adee
Add mdiff.patches to speed up applying thousands of patches to the manifest
mpm@selenic.com
parents:
67
diff
changeset
|
916 |
|
1598
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cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
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diff
changeset
|
917 p1, p2 = self.parents(node) |
| 26 | 918 if node != hash(text, p1, p2): |
|
1402
9d2c2e6b32b5
i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1400
diff
changeset
|
919 raise RevlogError(_("integrity check failed on %s:%d") |
|
3680
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
920 % (self.datafile, rev)) |
|
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|
921 |
|
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mpm@selenic.com
parents:
diff
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|
922 self.cache = (node, rev, text) |
| 515 | 923 return text |
|
0
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Add back links from file revisions to changeset revisions
mpm@selenic.com
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diff
changeset
|
924 |
|
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
925 def checkinlinesize(self, tr, fp=None): |
| 2073 | 926 if not self.inlinedata(): |
| 927 return | |
|
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
928 if not fp: |
|
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
929 fp = self.opener(self.indexfile, 'r') |
|
2082
856f0ba200bc
Additional appendfile fixes for interleaved data/index files
mason@suse.com
parents:
2081
diff
changeset
|
930 fp.seek(0, 2) |
| 2073 | 931 size = fp.tell() |
| 932 if size < 131072: | |
| 933 return | |
| 2084 | 934 trinfo = tr.find(self.indexfile) |
| 935 if trinfo == None: | |
|
3680
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
936 raise RevlogError(_("%s not found in the transaction") |
|
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
937 % self.indexfile) |
| 2084 | 938 |
| 939 trindex = trinfo[2] | |
| 940 dataoff = self.start(trindex) | |
| 941 | |
| 942 tr.add(self.datafile, dataoff) | |
| 2073 | 943 df = self.opener(self.datafile, 'w') |
| 944 calc = struct.calcsize(self.indexformat) | |
| 945 for r in xrange(self.count()): | |
| 946 start = self.start(r) + (r + 1) * calc | |
| 947 length = self.length(r) | |
| 948 fp.seek(start) | |
| 949 d = fp.read(length) | |
| 950 df.write(d) | |
| 951 fp.close() | |
| 952 df.close() | |
|
2076
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
953 fp = self.opener(self.indexfile, 'w', atomictemp=True) |
| 2073 | 954 self.version &= ~(REVLOGNGINLINEDATA) |
| 955 if self.count(): | |
| 956 x = self.index[0] | |
| 957 e = struct.pack(self.indexformat, *x)[4:] | |
| 958 l = struct.pack(versionformat, self.version) | |
| 959 fp.write(l) | |
| 960 fp.write(e) | |
| 961 | |
| 962 for i in xrange(1, self.count()): | |
| 963 x = self.index[i] | |
| 964 e = struct.pack(self.indexformat, *x) | |
| 965 fp.write(e) | |
| 966 | |
|
2076
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
967 # if we don't call rename, the temp file will never replace the |
|
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
968 # real index |
|
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mason@suse.com
parents:
2075
diff
changeset
|
969 fp.rename() |
| 2084 | 970 |
| 971 tr.replace(self.indexfile, trindex * calc) | |
| 2073 | 972 self.chunkcache = None |
| 973 | |
| 644 | 974 def addrevision(self, text, transaction, link, p1=None, p2=None, d=None): |
| 1083 | 975 """add a revision to the log |
| 976 | |
| 977 text - the revision data to add | |
| 978 transaction - the transaction object used for rollback | |
| 979 link - the linkrev data to add | |
| 980 p1, p2 - the parent nodeids of the revision | |
| 981 d - an optional precomputed delta | |
| 982 """ | |
|
3390
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
983 if not self.inlinedata(): |
|
a74addddd092
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parents:
3360
diff
changeset
|
984 dfh = self.opener(self.datafile, "a") |
|
a74addddd092
make revlog.addgroup pass its file handles to addrevision
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diff
changeset
|
985 else: |
|
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
986 dfh = None |
|
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
987 ifh = self.opener(self.indexfile, "a+") |
|
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
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diff
changeset
|
988 return self._addrevision(text, transaction, link, p1, p2, d, ifh, dfh) |
|
a74addddd092
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parents:
3360
diff
changeset
|
989 |
|
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
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diff
changeset
|
990 def _addrevision(self, text, transaction, link, p1, p2, d, ifh, dfh): |
|
0
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|
991 if text is None: text = "" |
|
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parents:
diff
changeset
|
992 if p1 is None: p1 = self.tip() |
|
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parents:
diff
changeset
|
993 if p2 is None: p2 = nullid |
|
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parents:
diff
changeset
|
994 |
|
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parents:
diff
changeset
|
995 node = hash(text, p1, p2) |
|
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parents:
diff
changeset
|
996 |
| 301 | 997 if node in self.nodemap: |
| 998 return node | |
| 999 | |
|
0
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Add back links from file revisions to changeset revisions
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changeset
|
1000 n = self.count() |
|
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1001 t = n - 1 |
|
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1002 |
|
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1003 if n: |
| 64 | 1004 base = self.base(t) |
| 1005 start = self.start(base) | |
|
0
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|
1006 end = self.end(t) |
| 644 | 1007 if not d: |
| 1008 prev = self.revision(self.tip()) | |
|
3335
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Teach bdiff to support buffer objects
Brendan Cully <brendan@kublai.com>
parents:
3210
diff
changeset
|
1009 d = self.diff(prev, text) |
| 98 | 1010 data = compress(d) |
|
1533
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|
1011 l = len(data[1]) + len(data[0]) |
|
3d11f81c9145
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mason@suse.com
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|
1012 dist = end - start + l |
|
0
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1013 |
|
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1014 # full versions are inserted when the needed deltas |
|
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|
1015 # become comparable to the uncompressed text |
| 64 | 1016 if not n or dist > len(text) * 2: |
|
0
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|
1017 data = compress(text) |
|
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|
1018 l = len(data[1]) + len(data[0]) |
|
0
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|
1019 base = n |
|
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1020 else: |
|
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|
1021 base = self.base(t) |
|
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|
1022 |
|
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|
1023 offset = 0 |
|
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|
1024 if t >= 0: |
|
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|
1025 offset = self.end(t) |
|
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|
1026 |
|
2142
8a1e2a9c7013
Replaced 0 with REVLOGV0 where this meaning is used.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
2141
diff
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|
1027 if self.version == REVLOGV0: |
| 2072 | 1028 e = (offset, l, base, link, p1, p2, node) |
| 1029 else: | |
| 1030 e = (self.offset_type(offset, 0), l, len(text), | |
| 1031 base, link, self.rev(p1), self.rev(p2), node) | |
| 515 | 1032 |
|
0
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|
1033 self.index.append(e) |
|
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|
1034 self.nodemap[node] = n |
| 2072 | 1035 entry = struct.pack(self.indexformat, *e) |
|
0
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|
1036 |
| 2073 | 1037 if not self.inlinedata(): |
| 1038 transaction.add(self.datafile, offset) | |
| 1039 transaction.add(self.indexfile, n * len(entry)) | |
| 1040 if data[0]: | |
|
3390
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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|
1041 dfh.write(data[0]) |
|
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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|
1042 dfh.write(data[1]) |
|
a74addddd092
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|
1043 dfh.flush() |
| 2073 | 1044 else: |
|
3390
a74addddd092
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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|
1045 ifh.seek(0, 2) |
|
a74addddd092
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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|
1046 transaction.add(self.indexfile, ifh.tell(), self.count() - 1) |
| 2072 | 1047 |
|
2142
8a1e2a9c7013
Replaced 0 with REVLOGV0 where this meaning is used.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
2141
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changeset
|
1048 if len(self.index) == 1 and self.version != REVLOGV0: |
| 2072 | 1049 l = struct.pack(versionformat, self.version) |
|
3390
a74addddd092
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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|
1050 ifh.write(l) |
| 2072 | 1051 entry = entry[4:] |
| 1052 | |
|
3390
a74addddd092
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|
1053 ifh.write(entry) |
|
0
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|
1054 |
| 2073 | 1055 if self.inlinedata(): |
|
3390
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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|
1056 ifh.write(data[0]) |
|
a74addddd092
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changeset
|
1057 ifh.write(data[1]) |
|
a74addddd092
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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|
1058 self.checkinlinesize(transaction, ifh) |
| 2073 | 1059 |
|
0
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|
1060 self.cache = (node, n, text) |
|
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1061 return node |
|
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|
1062 |
|
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|
1063 def ancestor(self, a, b): |
| 1083 | 1064 """calculate the least common ancestor of nodes a and b""" |
|
2081
416d8b2a75b8
Speedup revlog.ancestors for the linear case
Chris Mason <mason@suse.com>
parents:
2080
diff
changeset
|
1065 |
|
3139
1fd1cdcc4200
Switch revlog.ancestor to use revisions rather than nodeids
Matt Mackall <mpm@selenic.com>
parents:
3135
diff
changeset
|
1066 def parents(rev): |
|
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3508
diff
changeset
|
1067 return [p for p in self.parentrevs(rev) if p != nullrev] |
| 515 | 1068 |
|
3139
1fd1cdcc4200
Switch revlog.ancestor to use revisions rather than nodeids
Matt Mackall <mpm@selenic.com>
parents:
3135
diff
changeset
|
1069 c = ancestor.ancestor(self.rev(a), self.rev(b), parents) |
|
1fd1cdcc4200
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diff
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|
1070 if c is None: |
|
1fd1cdcc4200
Switch revlog.ancestor to use revisions rather than nodeids
Matt Mackall <mpm@selenic.com>
parents:
3135
diff
changeset
|
1071 return nullid |
|
1fd1cdcc4200
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Matt Mackall <mpm@selenic.com>
parents:
3135
diff
changeset
|
1072 |
|
1fd1cdcc4200
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parents:
3135
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|
1073 return self.node(c) |
|
0
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|
1074 |
|
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1075 def group(self, nodelist, lookup, infocollect=None): |
| 1083 | 1076 """calculate a delta group |
| 46 | 1077 |
| 1083 | 1078 Given a list of changeset revs, return a set of deltas and |
| 1079 metadata corresponding to nodes. the first delta is | |
| 1080 parent(nodes[0]) -> nodes[0] the receiver is guaranteed to | |
| 1081 have this parent as it has all history before these | |
| 1082 changesets. parent is parent[0] | |
| 1083 """ | |
|
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1084 revs = [self.rev(n) for n in nodelist] |
| 46 | 1085 |
| 1086 # if we don't have any revisions touched by these changesets, bail | |
| 192 | 1087 if not revs: |
|
1981
736b6c96bbbc
make incoming work via ssh (issue139); move chunk code into separate module.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1941
diff
changeset
|
1088 yield changegroup.closechunk() |
| 192 | 1089 return |
| 46 | 1090 |
| 1091 # add the parent of the first rev | |
| 1092 p = self.parents(self.node(revs[0]))[0] | |
| 1093 revs.insert(0, self.rev(p)) | |
| 1094 | |
| 1095 # build deltas | |
|
71
47c9a869adee
Add mdiff.patches to speed up applying thousands of patches to the manifest
mpm@selenic.com
parents:
67
diff
changeset
|
1096 for d in xrange(0, len(revs) - 1): |
| 46 | 1097 a, b = revs[d], revs[d + 1] |
|
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1098 nb = self.node(b) |
| 192 | 1099 |
|
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1100 if infocollect is not None: |
|
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1101 infocollect(nb) |
|
1458
1033892bbb87
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Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1102 |
|
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
1103 d = self.revdiff(a, b) |
|
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1104 p = self.parents(nb) |
|
14d1f1868bf6
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1105 meta = nb + p[0] + p[1] + lookup(nb) |
|
1981
736b6c96bbbc
make incoming work via ssh (issue139); move chunk code into separate module.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1941
diff
changeset
|
1106 yield changegroup.genchunk("%s%s" % (meta, d)) |
| 46 | 1107 |
|
1981
736b6c96bbbc
make incoming work via ssh (issue139); move chunk code into separate module.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1941
diff
changeset
|
1108 yield changegroup.closechunk() |
| 192 | 1109 |
| 1062 | 1110 def addgroup(self, revs, linkmapper, transaction, unique=0): |
| 1083 | 1111 """ |
| 1112 add a delta group | |
| 46 | 1113 |
| 1083 | 1114 given a set of deltas, add them to the revision log. the |
| 1115 first delta is against its parent, which should be in our | |
| 1116 log, the rest are against the previous delta. | |
| 1117 """ | |
| 1118 | |
| 1119 #track the base of the current delta log | |
| 46 | 1120 r = self.count() |
| 1121 t = r - 1 | |
|
2002
4aab906517c6
Calling revlog.addgroup with an empty changegroup now raises RevlogError.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1981
diff
changeset
|
1122 node = None |
| 515 | 1123 |
|
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3508
diff
changeset
|
1124 base = prev = nullrev |
|
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1125 start = end = textlen = 0 |
| 46 | 1126 if r: |
| 1127 end = self.end(t) | |
| 1128 | |
| 2072 | 1129 ifh = self.opener(self.indexfile, "a+") |
|
2077
4d0700ae0991
Fix inlined revlogs to seek to eof after opening "a+"
mason@suse.com
parents:
2076
diff
changeset
|
1130 ifh.seek(0, 2) |
| 2084 | 1131 transaction.add(self.indexfile, ifh.tell(), self.count()) |
| 2073 | 1132 if self.inlinedata(): |
| 1133 dfh = None | |
| 1134 else: | |
| 1135 transaction.add(self.datafile, end) | |
| 1136 dfh = self.opener(self.datafile, "a") | |
| 46 | 1137 |
| 1138 # loop through our set of deltas | |
| 192 | 1139 chain = None |
| 1140 for chunk in revs: | |
| 1141 node, p1, p2, cs = struct.unpack("20s20s20s20s", chunk[:80]) | |
| 94 | 1142 link = linkmapper(cs) |
| 77 | 1143 if node in self.nodemap: |
|
224
ccbcc4d76f81
fix bad assumption about uniqueness of file versions
mpm@selenic.com
parents:
221
diff
changeset
|
1144 # this can happen if two branches make the same change |
|
1218
cde6818e082a
Add preliminary support for the bundle and unbundle commands
mpm@selenic.com
parents:
1214
diff
changeset
|
1145 # if unique: |
|
1402
9d2c2e6b32b5
i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1400
diff
changeset
|
1146 # raise RevlogError(_("already have %s") % hex(node[:4])) |
|
653
94cdd02792b5
Fix corruption resulting from skipping parts of a revision group
Matt Mackall <mpm@selenic.com>
parents:
651
diff
changeset
|
1147 chain = node |
|
224
ccbcc4d76f81
fix bad assumption about uniqueness of file versions
mpm@selenic.com
parents:
221
diff
changeset
|
1148 continue |
| 192 | 1149 delta = chunk[80:] |
| 1150 | |
|
1509
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
1151 for p in (p1, p2): |
|
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
1152 if not p in self.nodemap: |
|
2295
9c15f85e61b1
fix a typo in an error message
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
2289
diff
changeset
|
1153 raise RevlogError(_("unknown parent %s") % short(p)) |
|
1509
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
1154 |
| 192 | 1155 if not chain: |
| 1156 # retrieve the parent revision of the delta chain | |
| 1157 chain = p1 | |
| 1158 if not chain in self.nodemap: | |
|
1402
9d2c2e6b32b5
i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1400
diff
changeset
|
1159 raise RevlogError(_("unknown base %s") % short(chain[:4])) |
| 46 | 1160 |
| 1161 # full versions are inserted when the needed deltas become | |
| 1162 # comparable to the uncompressed text or when the previous | |
| 1163 # version is not the one we have a delta against. We use | |
| 1164 # the size of the previous full rev as a proxy for the | |
| 1165 # current size. | |
| 1166 | |
| 1167 if chain == prev: | |
|
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
1168 tempd = compress(delta) |
|
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
1169 cdelta = tempd[0] + tempd[1] |
|
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1170 textlen = mdiff.patchedsize(textlen, delta) |
| 46 | 1171 |
|
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1172 if chain != prev or (end - start + len(cdelta)) > textlen * 2: |
| 46 | 1173 # flush our writes here so we can read it in revision |
| 2072 | 1174 if dfh: |
| 1175 dfh.flush() | |
| 46 | 1176 ifh.flush() |
|
65
d40cc5aacc31
Fix up a bunch of bugs in the new merge code
mpm@selenic.com
parents:
64
diff
changeset
|
1177 text = self.revision(chain) |
| 73 | 1178 text = self.patches(text, [delta]) |
|
3390
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1179 chk = self._addrevision(text, transaction, link, p1, p2, None, |
|
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1180 ifh, dfh) |
|
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1181 if not dfh and not self.inlinedata(): |
|
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1182 # addrevision switched from inline to conventional |
|
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1183 # reopen the index |
|
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1184 dfh = self.opener(self.datafile, "a") |
|
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1185 ifh = self.opener(self.indexfile, "a") |
| 46 | 1186 if chk != node: |
|
1402
9d2c2e6b32b5
i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1400
diff
changeset
|
1187 raise RevlogError(_("consistency error adding group")) |
|
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1188 textlen = len(text) |
| 46 | 1189 else: |
|
2142
8a1e2a9c7013
Replaced 0 with REVLOGV0 where this meaning is used.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
2141
diff
changeset
|
1190 if self.version == REVLOGV0: |
| 2072 | 1191 e = (end, len(cdelta), base, link, p1, p2, node) |
| 1192 else: | |
|
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1193 e = (self.offset_type(end, 0), len(cdelta), textlen, base, |
| 2072 | 1194 link, self.rev(p1), self.rev(p2), node) |
| 46 | 1195 self.index.append(e) |
| 1196 self.nodemap[node] = r | |
| 2073 | 1197 if self.inlinedata(): |
| 1198 ifh.write(struct.pack(self.indexformat, *e)) | |
| 1199 ifh.write(cdelta) | |
|
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
1200 self.checkinlinesize(transaction, ifh) |
| 2073 | 1201 if not self.inlinedata(): |
| 1202 dfh = self.opener(self.datafile, "a") | |
| 1203 ifh = self.opener(self.indexfile, "a") | |
| 1204 else: | |
| 1205 dfh.write(cdelta) | |
| 1206 ifh.write(struct.pack(self.indexformat, *e)) | |
| 46 | 1207 |
|
65
d40cc5aacc31
Fix up a bunch of bugs in the new merge code
mpm@selenic.com
parents:
64
diff
changeset
|
1208 t, r, chain, prev = r, r + 1, node, node |
|
1749
d457fec76ab0
fix warnings from pychecker (unused variables and shadowing)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1711
diff
changeset
|
1209 base = self.base(t) |
|
d457fec76ab0
fix warnings from pychecker (unused variables and shadowing)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1711
diff
changeset
|
1210 start = self.start(base) |
| 46 | 1211 end = self.end(t) |
| 1212 | |
| 1213 return node | |
|
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1214 |
|
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1215 def strip(self, rev, minlink): |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1216 if self.count() == 0 or rev >= self.count(): |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1217 return |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1218 |
| 2072 | 1219 if isinstance(self.index, lazyindex): |
| 1220 self.loadindexmap() | |
| 1221 | |
|
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1222 # When stripping away a revision, we need to make sure it |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1223 # does not actually belong to an older changeset. |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1224 # The minlink parameter defines the oldest revision |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1225 # we're allowed to strip away. |
| 2072 | 1226 while minlink > self.index[rev][-4]: |
|
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1227 rev += 1 |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1228 if rev >= self.count(): |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1229 return |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1230 |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1231 # first truncate the files on disk |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1232 end = self.start(rev) |
| 2073 | 1233 if not self.inlinedata(): |
| 1234 df = self.opener(self.datafile, "a") | |
| 1235 df.truncate(end) | |
| 1236 end = rev * struct.calcsize(self.indexformat) | |
| 1237 else: | |
| 1238 end += rev * struct.calcsize(self.indexformat) | |
| 2072 | 1239 |
| 1240 indexf = self.opener(self.indexfile, "a") | |
| 1241 indexf.truncate(end) | |
|
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1242 |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1243 # then reset internal state in memory to forget those revisions |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1244 self.cache = None |
| 1711 | 1245 self.chunkcache = None |
| 2072 | 1246 for x in xrange(rev, self.count()): |
| 1247 del self.nodemap[self.node(x)] | |
|
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1248 |
| 2072 | 1249 del self.index[rev:] |
|
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1250 |
|
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1251 def checksize(self): |
|
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1252 expected = 0 |
|
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1253 if self.count(): |
|
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1254 expected = self.end(self.count() - 1) |
|
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1255 |
|
1494
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1256 try: |
|
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1257 f = self.opener(self.datafile) |
|
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1258 f.seek(0, 2) |
|
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1259 actual = f.tell() |
|
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1260 dd = actual - expected |
|
1494
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1261 except IOError, inst: |
|
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1262 if inst.errno != errno.ENOENT: |
|
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1263 raise |
|
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1264 dd = 0 |
|
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1265 |
|
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1266 try: |
|
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1267 f = self.opener(self.indexfile) |
|
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1268 f.seek(0, 2) |
|
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1269 actual = f.tell() |
| 2072 | 1270 s = struct.calcsize(self.indexformat) |
|
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1271 i = actual / s |
|
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1272 di = actual - (i * s) |
| 2073 | 1273 if self.inlinedata(): |
| 1274 databytes = 0 | |
| 1275 for r in xrange(self.count()): | |
| 1276 databytes += self.length(r) | |
| 1277 dd = 0 | |
| 1278 di = actual - self.count() * s - databytes | |
|
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1279 except IOError, inst: |
|
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1280 if inst.errno != errno.ENOENT: |
|
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1281 raise |
|
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1282 di = 0 |
|
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1283 |
|
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1284 return (dd, di) |
|
1494
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1285 |
|
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1286 |