Mercurial > hg > mercurial-crew-with-dirclash
annotate mercurial/revlog.py @ 3082:240ec0e61290
Add the -s option to `hg help qseries`.
author | john.levon@sun.com |
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date | Wed, 13 Sep 2006 21:46:36 +0200 |
parents | baa3873eb387 |
children | e7fc04dc6349 |
rev | line source |
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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 | |
2858 | 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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12 |
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 heapq 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 | |
33 raise RevlogError(_("unknown revlog flag %s" % flag)) | |
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 |
2072 | 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: -1} |
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 start = 0 | |
120 end = self.datasize | |
121 self.allmap = 1 | |
122 cur = 0 | |
123 count = 0 | |
124 blocksize = self.s * 256 | |
125 self.dataf.seek(0) | |
126 while cur < end: | |
127 data = self.dataf.read(blocksize) | |
128 off = 0 | |
129 for x in xrange(256): | |
130 n = data[off + self.shaoffset:off + self.shaoffset + 20] | |
131 self.map[n] = count | |
132 count += 1 | |
133 if count >= self.l: | |
134 break | |
135 off += self.s | |
136 cur += blocksize | |
137 | |
138 def loadblock(self, blockstart, blocksize, data=None): | |
323 | 139 if self.all: return |
2079 | 140 if data is None: |
141 self.dataf.seek(blockstart) | |
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142 if blockstart + blocksize > self.datasize: |
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143 # the revlog may have grown since we've started running, |
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144 # but we don't have space in self.index for more entries. |
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145 # limit blocksize so that we don't get too much data. |
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146 blocksize = self.datasize - blockstart |
2079 | 147 data = self.dataf.read(blocksize) |
148 lend = len(data) / self.s | |
149 i = blockstart / self.s | |
150 off = 0 | |
151 for x in xrange(lend): | |
152 if self.index[i + x] == None: | |
153 b = data[off : off + self.s] | |
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154 self.index[i + x] = b |
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155 n = b[self.shaoffset:self.shaoffset + 20] |
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156 self.map[n] = i + x |
2079 | 157 off += self.s |
158 | |
159 def findnode(self, node): | |
160 """search backwards through the index file for a specific node""" | |
161 if self.allmap: return None | |
162 | |
163 # hg log will cause many many searches for the manifest | |
164 # nodes. After we get called a few times, just load the whole | |
165 # thing. | |
166 if self.mapfind_count > 8: | |
167 self.loadmap() | |
168 if node in self.map: | |
169 return node | |
170 return None | |
171 self.mapfind_count += 1 | |
172 last = self.l - 1 | |
173 while self.index[last] != None: | |
174 if last == 0: | |
175 self.all = 1 | |
176 self.allmap = 1 | |
177 return None | |
178 last -= 1 | |
179 end = (last + 1) * self.s | |
180 blocksize = self.s * 256 | |
181 while end >= 0: | |
182 start = max(end - blocksize, 0) | |
183 self.dataf.seek(start) | |
184 data = self.dataf.read(end - start) | |
185 findend = end - start | |
186 while True: | |
187 # we're searching backwards, so weh have to make sure | |
188 # we don't find a changeset where this node is a parent | |
189 off = data.rfind(node, 0, findend) | |
190 findend = off | |
191 if off >= 0: | |
192 i = off / self.s | |
193 off = i * self.s | |
194 n = data[off + self.shaoffset:off + self.shaoffset + 20] | |
195 if n == node: | |
196 self.map[n] = i + start / self.s | |
197 return node | |
198 else: | |
199 break | |
200 end -= blocksize | |
201 return None | |
202 | |
203 def loadindex(self, i=None, end=None): | |
204 if self.all: return | |
205 all = False | |
206 if i == None: | |
207 blockstart = 0 | |
208 blocksize = (512 / self.s) * self.s | |
209 end = self.datasize | |
210 all = True | |
323 | 211 else: |
2079 | 212 if end: |
213 blockstart = i * self.s | |
214 end = end * self.s | |
215 blocksize = end - blockstart | |
216 else: | |
217 blockstart = (i & ~(32)) * self.s | |
218 blocksize = self.s * 64 | |
219 end = blockstart + blocksize | |
220 while blockstart < end: | |
221 self.loadblock(blockstart, blocksize) | |
222 blockstart += blocksize | |
223 if all: self.all = True | |
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225 class lazyindex(object): |
1083 | 226 """a lazy version of the index array""" |
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227 def __init__(self, parser): |
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228 self.p = parser |
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229 def __len__(self): |
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230 return len(self.p.index) |
115 | 231 def load(self, pos): |
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232 if pos < 0: |
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233 pos += len(self.p.index) |
2079 | 234 self.p.loadindex(pos) |
115 | 235 return self.p.index[pos] |
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236 def __getitem__(self, pos): |
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237 ret = self.p.index[pos] or self.load(pos) |
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238 if isinstance(ret, str): |
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239 ret = struct.unpack(self.p.indexformat, ret) |
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240 return ret |
2072 | 241 def __setitem__(self, pos, item): |
242 self.p.index[pos] = item | |
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243 def __delitem__(self, pos): |
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244 del self.p.index[pos] |
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245 def append(self, e): |
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246 self.p.index.append(e) |
515 | 247 |
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248 class lazymap(object): |
1083 | 249 """a lazy version of the node map""" |
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250 def __init__(self, parser): |
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251 self.p = parser |
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252 def load(self, key): |
2079 | 253 n = self.p.findnode(key) |
254 if n == None: | |
1214 | 255 raise KeyError(key) |
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256 def __contains__(self, key): |
2079 | 257 if key in self.p.map: |
258 return True | |
259 self.p.loadmap() | |
323 | 260 return key in self.p.map |
97 | 261 def __iter__(self): |
469 | 262 yield nullid |
97 | 263 for i in xrange(self.p.l): |
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264 ret = self.p.index[i] |
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265 if not ret: |
2079 | 266 self.p.loadindex(i) |
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267 ret = self.p.index[i] |
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268 if isinstance(ret, str): |
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269 ret = struct.unpack(self.p.indexformat, ret) |
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270 yield ret[-1] |
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271 def __getitem__(self, key): |
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272 try: |
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273 return self.p.map[key] |
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274 except KeyError: |
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275 try: |
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276 self.load(key) |
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277 return self.p.map[key] |
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278 except KeyError: |
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279 raise KeyError("node " + hex(key)) |
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280 def __setitem__(self, key, val): |
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281 self.p.map[key] = val |
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282 def __delitem__(self, key): |
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283 del self.p.map[key] |
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284 |
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285 class RevlogError(Exception): pass |
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286 |
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287 class revlog(object): |
1083 | 288 """ |
289 the underlying revision storage object | |
290 | |
291 A revlog consists of two parts, an index and the revision data. | |
292 | |
293 The index is a file with a fixed record size containing | |
294 information on each revision, includings its nodeid (hash), the | |
295 nodeids of its parents, the position and offset of its data within | |
296 the data file, and the revision it's based on. Finally, each entry | |
297 contains a linkrev entry that can serve as a pointer to external | |
298 data. | |
299 | |
300 The revision data itself is a linear collection of data chunks. | |
301 Each chunk represents a revision and is usually represented as a | |
302 delta against the previous chunk. To bound lookup time, runs of | |
303 deltas are limited to about 2 times the length of the original | |
304 version data. This makes retrieval of a version proportional to | |
305 its size, or O(1) relative to the number of revisions. | |
306 | |
307 Both pieces of the revlog are written to in an append-only | |
308 fashion, which means we never need to rewrite a file to insert or | |
309 remove data, and can use some simple techniques to avoid the need | |
310 for locking while reading. | |
311 """ | |
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312 def __init__(self, opener, indexfile, datafile, |
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313 defversion=REVLOG_DEFAULT_VERSION): |
1083 | 314 """ |
315 create a revlog object | |
316 | |
317 opener is a function that abstracts the file opening operation | |
318 and can be used to implement COW semantics or the like. | |
319 """ | |
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320 self.indexfile = indexfile |
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321 self.datafile = datafile |
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322 self.opener = opener |
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323 |
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324 self.indexstat = None |
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325 self.cache = None |
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326 self.chunkcache = None |
2072 | 327 self.defversion = defversion |
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328 self.load() |
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329 |
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330 def load(self): |
2072 | 331 v = self.defversion |
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332 try: |
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333 f = self.opener(self.indexfile) |
2079 | 334 i = f.read(4) |
335 f.seek(0) | |
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336 except IOError, inst: |
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337 if inst.errno != errno.ENOENT: |
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338 raise |
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339 i = "" |
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340 else: |
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341 try: |
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342 st = util.fstat(f) |
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343 except AttributeError, inst: |
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344 st = None |
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345 else: |
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346 oldst = self.indexstat |
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347 if (oldst and st.st_dev == oldst.st_dev |
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348 and st.st_ino == oldst.st_ino |
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349 and st.st_mtime == oldst.st_mtime |
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350 and st.st_ctime == oldst.st_ctime): |
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351 return |
2072 | 352 self.indexstat = st |
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353 if len(i) > 0: |
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354 v = struct.unpack(versionformat, i)[0] |
2073 | 355 flags = v & ~0xFFFF |
356 fmt = v & 0xFFFF | |
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357 if fmt == REVLOGV0: |
2073 | 358 if flags: |
359 raise RevlogError(_("index %s invalid flags %x for format v0" % | |
360 (self.indexfile, flags))) | |
361 elif fmt == REVLOGNG: | |
362 if flags & ~REVLOGNGINLINEDATA: | |
363 raise RevlogError(_("index %s invalid flags %x for revlogng" % | |
364 (self.indexfile, flags))) | |
365 else: | |
366 raise RevlogError(_("index %s invalid format %d" % | |
367 (self.indexfile, fmt))) | |
2072 | 368 self.version = v |
2142
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369 if v == REVLOGV0: |
2072 | 370 self.indexformat = indexformatv0 |
2079 | 371 shaoffset = v0shaoffset |
2072 | 372 else: |
373 self.indexformat = indexformatng | |
2079 | 374 shaoffset = ngshaoffset |
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375 |
2072 | 376 if i: |
2250
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377 if (lazyparser.safe_to_use and not self.inlinedata() and |
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378 st and st.st_size > 10000): |
2072 | 379 # big index, let's parse it on demand |
2079 | 380 parser = lazyparser(f, st.st_size, self.indexformat, shaoffset) |
2072 | 381 self.index = lazyindex(parser) |
382 self.nodemap = lazymap(parser) | |
383 else: | |
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384 self.parseindex(f, st) |
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385 if self.version != REVLOGV0: |
2072 | 386 e = list(self.index[0]) |
387 type = self.ngtype(e[0]) | |
388 e[0] = self.offset_type(0, type) | |
389 self.index[0] = e | |
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390 else: |
2072 | 391 self.nodemap = { nullid: -1} |
392 self.index = [] | |
393 | |
394 | |
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395 def parseindex(self, fp, st): |
2072 | 396 s = struct.calcsize(self.indexformat) |
397 self.index = [] | |
398 self.nodemap = {nullid: -1} | |
2073 | 399 inline = self.inlinedata() |
2072 | 400 n = 0 |
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401 leftover = None |
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402 while True: |
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403 if st: |
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404 data = fp.read(65536) |
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405 else: |
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406 # hack for httprangereader, it doesn't do partial reads well |
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407 data = fp.read() |
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408 if not data: |
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409 break |
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410 if n == 0 and self.inlinedata(): |
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411 # cache the first chunk |
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412 self.chunkcache = (0, data) |
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413 if leftover: |
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414 data = leftover + data |
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415 leftover = None |
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416 off = 0 |
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417 l = len(data) |
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418 while off < l: |
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419 if l - off < s: |
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420 leftover = data[off:] |
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421 break |
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422 cur = data[off:off + s] |
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423 off += s |
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424 e = struct.unpack(self.indexformat, cur) |
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425 self.index.append(e) |
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426 self.nodemap[e[-1]] = n |
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427 n += 1 |
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428 if inline: |
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429 off += e[1] |
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430 if off > l: |
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431 # some things don't seek well, just read it |
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432 fp.read(off - l) |
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433 if not st: |
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434 break |
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435 |
116
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436 |
2072 | 437 def ngoffset(self, q): |
438 if q & 0xFFFF: | |
439 raise RevlogError(_('%s: incompatible revision flag %x') % | |
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440 (self.indexfile, q)) |
2072 | 441 return long(q >> 16) |
442 | |
443 def ngtype(self, q): | |
444 return int(q & 0xFFFF) | |
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445 |
2072 | 446 def offset_type(self, offset, type): |
447 return long(long(offset) << 16 | type) | |
448 | |
2079 | 449 def loadindex(self, start, end): |
450 """load a block of indexes all at once from the lazy parser""" | |
451 if isinstance(self.index, lazyindex): | |
452 self.index.p.loadindex(start, end) | |
453 | |
2072 | 454 def loadindexmap(self): |
455 """loads both the map and the index from the lazy parser""" | |
456 if isinstance(self.index, lazyindex): | |
457 p = self.index.p | |
2079 | 458 p.loadindex() |
459 self.nodemap = p.map | |
460 | |
461 def loadmap(self): | |
462 """loads the map from the lazy parser""" | |
463 if isinstance(self.nodemap, lazymap): | |
464 self.nodemap.p.loadmap() | |
465 self.nodemap = self.nodemap.p.map | |
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466 |
2073 | 467 def inlinedata(self): return self.version & REVLOGNGINLINEDATA |
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468 def tip(self): return self.node(len(self.index) - 1) |
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469 def count(self): return len(self.index) |
2072 | 470 def node(self, rev): |
471 return (rev < 0) and nullid or self.index[rev][-1] | |
1201
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472 def rev(self, node): |
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473 try: |
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474 return self.nodemap[node] |
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475 except KeyError: |
1402
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476 raise RevlogError(_('%s: no node %s') % (self.indexfile, hex(node))) |
2651
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correct the handling of linkrev with nullid
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477 def linkrev(self, node): |
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478 return (node == nullid) and -1 or self.index[self.rev(node)][-4] |
2 | 479 def parents(self, node): |
480 if node == nullid: return (nullid, nullid) | |
2072 | 481 r = self.rev(node) |
482 d = self.index[r][-3:-1] | |
2142
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483 if self.version == REVLOGV0: |
2072 | 484 return d |
485 return [ self.node(x) for x in d ] | |
2489
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486 def parentrevs(self, rev): |
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487 if rev == -1: |
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488 return (-1, -1) |
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489 d = self.index[rev][-3:-1] |
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490 if self.version == REVLOGV0: |
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491 return [ self.rev(x) for x in d ] |
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492 return d |
2072 | 493 def start(self, rev): |
494 if rev < 0: | |
495 return -1 | |
2142
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496 if self.version != REVLOGV0: |
2072 | 497 return self.ngoffset(self.index[rev][0]) |
498 return self.index[rev][0] | |
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499 |
2072 | 500 def end(self, rev): return self.start(rev) + self.length(rev) |
0
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501 |
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502 def size(self, rev): |
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503 """return the length of the uncompressed text for a given revision""" |
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504 l = -1 |
2142
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505 if self.version != REVLOGV0: |
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506 l = self.index[rev][2] |
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507 if l >= 0: |
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508 return l |
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509 |
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510 t = self.revision(self.node(rev)) |
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511 return len(t) |
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512 |
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513 # alternate implementation, The advantage to this code is it |
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514 # will be faster for a single revision. But, the results are not |
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515 # cached, so finding the size of every revision will be slower. |
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516 """ |
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517 if self.cache and self.cache[1] == rev: |
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518 return len(self.cache[2]) |
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519 |
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520 base = self.base(rev) |
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521 if self.cache and self.cache[1] >= base and self.cache[1] < rev: |
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522 base = self.cache[1] |
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523 text = self.cache[2] |
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524 else: |
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525 text = self.revision(self.node(base)) |
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526 |
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527 l = len(text) |
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528 for x in xrange(base + 1, rev + 1): |
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529 l = mdiff.patchedsize(l, self.chunk(x)) |
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530 return l |
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531 """ |
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532 |
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
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533 def length(self, rev): |
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534 if rev < 0: |
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535 return 0 |
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536 else: |
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537 return self.index[rev][1] |
2072 | 538 def base(self, rev): return (rev < 0) and rev or self.index[rev][-5] |
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539 |
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540 def reachable(self, rev, stop=None): |
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541 reachable = {} |
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542 visit = [rev] |
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543 reachable[rev] = 1 |
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544 if stop: |
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545 stopn = self.rev(stop) |
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546 else: |
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547 stopn = 0 |
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548 while visit: |
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549 n = visit.pop(0) |
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550 if n == stop: |
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551 continue |
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552 if n == nullid: |
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553 continue |
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554 for p in self.parents(n): |
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555 if self.rev(p) < stopn: |
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556 continue |
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557 if p not in reachable: |
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558 reachable[p] = 1 |
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559 visit.append(p) |
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560 return reachable |
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561 |
1457
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562 def nodesbetween(self, roots=None, heads=None): |
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|
563 """Return a tuple containing three elements. Elements 1 and 2 contain |
518da3c3b6ce
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|
564 a final list bases and heads after all the unreachable ones have been |
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|
565 pruned. Element 0 contains a topologically sorted list of all |
518da3c3b6ce
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|
566 |
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|
567 nodes that satisfy these constraints: |
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568 1. All nodes must be descended from a node in roots (the nodes on |
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|
569 roots are considered descended from themselves). |
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570 2. All nodes must also be ancestors of a node in heads (the nodes in |
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571 heads are considered to be their own ancestors). |
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572 |
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573 If roots is unspecified, nullid is assumed as the only root. |
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574 If heads is unspecified, it is taken to be the output of the |
518da3c3b6ce
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575 heads method (i.e. a list of all nodes in the repository that |
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576 have no children).""" |
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577 nonodes = ([], [], []) |
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578 if roots is not None: |
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579 roots = list(roots) |
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580 if not roots: |
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581 return nonodes |
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582 lowestrev = min([self.rev(n) for n in roots]) |
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583 else: |
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584 roots = [nullid] # Everybody's a descendent of nullid |
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585 lowestrev = -1 |
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586 if (lowestrev == -1) and (heads is None): |
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587 # We want _all_ the nodes! |
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588 return ([self.node(r) for r in xrange(0, self.count())], |
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589 [nullid], list(self.heads())) |
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590 if heads is None: |
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591 # All nodes are ancestors, so the latest ancestor is the last |
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|
592 # node. |
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|
593 highestrev = self.count() - 1 |
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594 # Set ancestors to None to signal that every node is an ancestor. |
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595 ancestors = None |
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|
596 # Set heads to an empty dictionary for later discovery of heads |
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597 heads = {} |
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|
598 else: |
1463
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|
599 heads = list(heads) |
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|
600 if not heads: |
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Eric Hopper <hopper@omnifarious.org>
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|
601 return nonodes |
1457
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|
602 ancestors = {} |
518da3c3b6ce
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|
603 # Start at the top and keep marking parents until we're done. |
1463
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diff
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|
604 nodestotag = heads[:] |
1457
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605 # Turn heads into a dictionary so we can remove 'fake' heads. |
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606 # Also, later we will be using it to filter out the heads we can't |
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607 # find from roots. |
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608 heads = dict.fromkeys(heads, 0) |
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609 # Remember where the top was so we can use it as a limit later. |
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610 highestrev = max([self.rev(n) for n in nodestotag]) |
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611 while nodestotag: |
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612 # grab a node to tag |
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613 n = nodestotag.pop() |
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614 # Never tag nullid |
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615 if n == nullid: |
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616 continue |
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617 # A node's revision number represents its place in a |
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618 # topologically sorted list of nodes. |
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619 r = self.rev(n) |
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620 if r >= lowestrev: |
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621 if n not in ancestors: |
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622 # If we are possibly a descendent of one of the roots |
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623 # and we haven't already been marked as an ancestor |
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624 ancestors[n] = 1 # Mark as ancestor |
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625 # Add non-nullid parents to list of nodes to tag. |
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626 nodestotag.extend([p for p in self.parents(n) if |
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627 p != nullid]) |
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628 elif n in heads: # We've seen it before, is it a fake head? |
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629 # So it is, real heads should not be the ancestors of |
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630 # any other heads. |
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631 heads.pop(n) |
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Fix small bug in nodesbetween if heads is [nullid].
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632 if not ancestors: |
1463
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Fix to handle case of empty list for roots or heads in nodesbetween.
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633 return nonodes |
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634 # Now that we have our set of ancestors, we want to remove any |
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635 # roots that are not ancestors. |
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636 |
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637 # If one of the roots was nullid, everything is included anyway. |
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638 if lowestrev > -1: |
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639 # But, since we weren't, let's recompute the lowest rev to not |
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640 # include roots that aren't ancestors. |
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641 |
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642 # Filter out roots that aren't ancestors of heads |
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643 roots = [n for n in roots if n in ancestors] |
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644 # Recompute the lowest revision |
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645 if roots: |
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646 lowestrev = min([self.rev(n) for n in roots]) |
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647 else: |
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648 # No more roots? Return empty list |
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Fix to handle case of empty list for roots or heads in nodesbetween.
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649 return nonodes |
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650 else: |
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651 # We are descending from nullid, and don't need to care about |
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652 # any other roots. |
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653 lowestrev = -1 |
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654 roots = [nullid] |
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655 # Transform our roots list into a 'set' (i.e. a dictionary where the |
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656 # values don't matter. |
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657 descendents = dict.fromkeys(roots, 1) |
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658 # Also, keep the original roots so we can filter out roots that aren't |
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659 # 'real' roots (i.e. are descended from other roots). |
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660 roots = descendents.copy() |
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661 # Our topologically sorted list of output nodes. |
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662 orderedout = [] |
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663 # Don't start at nullid since we don't want nullid in our output list, |
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664 # and if nullid shows up in descedents, empty parents will look like |
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665 # they're descendents. |
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666 for r in xrange(max(lowestrev, 0), highestrev + 1): |
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667 n = self.node(r) |
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668 isdescendent = False |
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669 if lowestrev == -1: # Everybody is a descendent of nullid |
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670 isdescendent = True |
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671 elif n in descendents: |
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672 # n is already a descendent |
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673 isdescendent = True |
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674 # This check only needs to be done here because all the roots |
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675 # will start being marked is descendents before the loop. |
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676 if n in roots: |
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677 # If n was a root, check if it's a 'real' root. |
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678 p = tuple(self.parents(n)) |
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679 # If any of its parents are descendents, it's not a root. |
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680 if (p[0] in descendents) or (p[1] in descendents): |
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681 roots.pop(n) |
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682 else: |
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683 p = tuple(self.parents(n)) |
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684 # A node is a descendent if either of its parents are |
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685 # descendents. (We seeded the dependents list with the roots |
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686 # up there, remember?) |
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687 if (p[0] in descendents) or (p[1] in descendents): |
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688 descendents[n] = 1 |
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689 isdescendent = True |
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690 if isdescendent and ((ancestors is None) or (n in ancestors)): |
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691 # Only include nodes that are both descendents and ancestors. |
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692 orderedout.append(n) |
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693 if (ancestors is not None) and (n in heads): |
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694 # We're trying to figure out which heads are reachable |
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695 # from roots. |
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696 # Mark this head as having been reached |
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697 heads[n] = 1 |
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698 elif ancestors is None: |
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699 # Otherwise, we're trying to discover the heads. |
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700 # Assume this is a head because if it isn't, the next step |
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701 # will eventually remove it. |
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702 heads[n] = 1 |
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703 # But, obviously its parents aren't. |
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704 for p in self.parents(n): |
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705 heads.pop(p, None) |
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706 heads = [n for n in heads.iterkeys() if heads[n] != 0] |
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707 roots = roots.keys() |
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708 assert orderedout |
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709 assert roots |
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710 assert heads |
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711 return (orderedout, roots, heads) |
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712 |
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713 def heads(self, start=None): |
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714 """return the list of all nodes that have no children |
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715 |
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716 if start is specified, only heads that are descendants of |
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1550
diff
changeset
|
717 start will be returned |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
718 |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
719 """ |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
720 if start is None: |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
721 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
|
722 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
|
723 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
|
724 heads = {startrev: 1} |
1083 | 725 |
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
|
726 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
|
727 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
|
728 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
|
729 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
|
730 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
|
731 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
|
732 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
|
733 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
|
734 return [self.node(r) for r in heads] |
370 | 735 |
736 def children(self, node): | |
1083 | 737 """find the children of a given node""" |
370 | 738 c = [] |
739 p = self.rev(node) | |
740 for r in range(p + 1, self.count()): | |
741 n = self.node(r) | |
742 for pn in self.parents(n): | |
854
473c030d34a6
Fixed revlog.children.
Tristan Wibberley <tristan@wibberley.org>
parents:
655
diff
changeset
|
743 if pn == node: |
473c030d34a6
Fixed revlog.children.
Tristan Wibberley <tristan@wibberley.org>
parents:
655
diff
changeset
|
744 c.append(n) |
370 | 745 continue |
746 elif pn == nullid: | |
747 continue | |
748 return c | |
515 | 749 |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
750 def lookup(self, id): |
1083 | 751 """locate a node based on revision number or subset of hex nodeid""" |
2560
c35694df7b13
revlog: handle integer arguments to lookup
Matt Mackall <mpm@selenic.com>
parents:
2490
diff
changeset
|
752 if type(id) == type(0): |
2650
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
|
753 return self.node(id) |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
754 try: |
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
755 rev = int(id) |
469 | 756 if str(rev) != id: raise ValueError |
757 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
|
758 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
|
759 return self.node(rev) |
469 | 760 except (ValueError, OverflowError): |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
761 c = [] |
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
762 for n in self.nodemap: |
469 | 763 if hex(n).startswith(id): |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
764 c.append(n) |
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
|
765 if len(c) > 1: raise RevlogError(_("Ambiguous identifier")) |
2801 | 766 if len(c) == 1: return c[0] |
515 | 767 |
2801 | 768 # might need fixing if we change hash lengths |
769 if len(id) == 20 and id in self.nodemap: | |
770 return id | |
771 | |
772 raise RevlogError(_("No match found")) | |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
773 |
2910
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
774 def cmp(self, node, text): |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
775 """compare text with a given file revision""" |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
776 p1, p2 = self.parents(node) |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
777 return hash(text, p1, p2) != node |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
778 |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
779 def makenode(self, node, text): |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
780 """calculate a file nodeid for text, descended or possibly |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
781 unchanged from node""" |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
782 |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
783 if self.cmp(node, text): |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
784 return hash(text, node, nullid) |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
785 return node |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
786 |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
787 def diff(self, a, b): |
1083 | 788 """return a delta between two revisions""" |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
789 return mdiff.textdiff(a, b) |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
790 |
73 | 791 def patches(self, t, pl): |
1083 | 792 """apply a list of patches to a string""" |
73 | 793 return mdiff.patches(t, pl) |
794 | |
2072 | 795 def chunk(self, rev, df=None, cachelen=4096): |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
796 start, length = self.start(rev), self.length(rev) |
2073 | 797 inline = self.inlinedata() |
798 if inline: | |
799 start += (rev + 1) * struct.calcsize(self.indexformat) | |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
800 end = start + length |
2072 | 801 def loadcache(df): |
802 cache_length = max(cachelen, length) # 4k | |
803 if not df: | |
2073 | 804 if inline: |
805 df = self.opener(self.indexfile) | |
806 else: | |
807 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
|
808 df.seek(start) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
809 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
|
810 |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
811 if not self.chunkcache: |
2072 | 812 loadcache(df) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
813 |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
814 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
|
815 cache_end = cache_start + len(self.chunkcache[1]) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
816 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
|
817 # it is cached |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
818 offset = start - cache_start |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
819 else: |
2072 | 820 loadcache(df) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
821 offset = 0 |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
822 |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
823 #def checkchunk(): |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
824 # df = self.opener(self.datafile) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
825 # df.seek(start) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
826 # return df.read(length) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
827 #assert s == checkchunk() |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
828 return decompress(self.chunkcache[1][offset:offset + length]) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
829 |
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
830 def delta(self, node): |
1083 | 831 """return or calculate a delta between a node and its predecessor""" |
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
832 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
|
833 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
|
834 |
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
835 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
|
836 """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
|
837 b1 = self.base(rev1) |
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
838 b2 = self.base(rev2) |
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
839 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:
1853
diff
changeset
|
840 return self.chunk(rev2) |
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
841 else: |
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
842 return self.diff(self.revision(self.node(rev1)), |
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
843 self.revision(self.node(rev2))) |
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
844 |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
845 def revision(self, node): |
1083 | 846 """return an uncompressed revision of a given""" |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
847 if node == nullid: return "" |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
848 if self.cache and self.cache[0] == node: return self.cache[2] |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
849 |
1083 | 850 # look up what we need to read |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
851 text = None |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
852 rev = self.rev(node) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
853 base = self.base(rev) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
854 |
2073 | 855 if self.inlinedata(): |
856 # we probably have the whole chunk cached | |
857 df = None | |
858 else: | |
859 df = self.opener(self.datafile) | |
2072 | 860 |
1083 | 861 # do we have useful data cached? |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
862 if self.cache and self.cache[1] >= base and self.cache[1] < rev: |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
863 base = self.cache[1] |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
864 text = self.cache[2] |
2079 | 865 self.loadindex(base, rev + 1) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
866 else: |
2079 | 867 self.loadindex(base, rev + 1) |
2072 | 868 text = self.chunk(base, df=df) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
869 |
71
47c9a869adee
Add mdiff.patches to speed up applying thousands of patches to the manifest
mpm@selenic.com
parents:
67
diff
changeset
|
870 bins = [] |
64 | 871 for r in xrange(base + 1, rev + 1): |
2072 | 872 bins.append(self.chunk(r, df=df)) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
873 |
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
874 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
|
875 |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
876 p1, p2 = self.parents(node) |
26 | 877 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
|
878 raise RevlogError(_("integrity check failed on %s:%d") |
98 | 879 % (self.datafile, rev)) |
0
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880 |
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881 self.cache = (node, rev, text) |
515 | 882 return text |
0
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883 |
2075
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884 def checkinlinesize(self, tr, fp=None): |
2073 | 885 if not self.inlinedata(): |
886 return | |
2075
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887 if not fp: |
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888 fp = self.opener(self.indexfile, 'r') |
2082
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889 fp.seek(0, 2) |
2073 | 890 size = fp.tell() |
891 if size < 131072: | |
892 return | |
2084 | 893 trinfo = tr.find(self.indexfile) |
894 if trinfo == None: | |
895 raise RevlogError(_("%s not found in the transaction" % | |
896 self.indexfile)) | |
897 | |
898 trindex = trinfo[2] | |
899 dataoff = self.start(trindex) | |
900 | |
901 tr.add(self.datafile, dataoff) | |
2073 | 902 df = self.opener(self.datafile, 'w') |
903 calc = struct.calcsize(self.indexformat) | |
904 for r in xrange(self.count()): | |
905 start = self.start(r) + (r + 1) * calc | |
906 length = self.length(r) | |
907 fp.seek(start) | |
908 d = fp.read(length) | |
909 df.write(d) | |
910 fp.close() | |
911 df.close() | |
2076
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912 fp = self.opener(self.indexfile, 'w', atomictemp=True) |
2073 | 913 self.version &= ~(REVLOGNGINLINEDATA) |
914 if self.count(): | |
915 x = self.index[0] | |
916 e = struct.pack(self.indexformat, *x)[4:] | |
917 l = struct.pack(versionformat, self.version) | |
918 fp.write(l) | |
919 fp.write(e) | |
920 | |
921 for i in xrange(1, self.count()): | |
922 x = self.index[i] | |
923 e = struct.pack(self.indexformat, *x) | |
924 fp.write(e) | |
925 | |
2076
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926 # if we don't call rename, the temp file will never replace the |
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927 # real index |
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928 fp.rename() |
2084 | 929 |
930 tr.replace(self.indexfile, trindex * calc) | |
2073 | 931 self.chunkcache = None |
932 | |
644 | 933 def addrevision(self, text, transaction, link, p1=None, p2=None, d=None): |
1083 | 934 """add a revision to the log |
935 | |
936 text - the revision data to add | |
937 transaction - the transaction object used for rollback | |
938 link - the linkrev data to add | |
939 p1, p2 - the parent nodeids of the revision | |
940 d - an optional precomputed delta | |
941 """ | |
0
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942 if text is None: text = "" |
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943 if p1 is None: p1 = self.tip() |
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944 if p2 is None: p2 = nullid |
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945 |
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946 node = hash(text, p1, p2) |
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947 |
301 | 948 if node in self.nodemap: |
949 return node | |
950 | |
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951 n = self.count() |
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952 t = n - 1 |
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953 |
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954 if n: |
64 | 955 base = self.base(t) |
956 start = self.start(base) | |
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957 end = self.end(t) |
644 | 958 if not d: |
959 prev = self.revision(self.tip()) | |
1533
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960 d = self.diff(prev, str(text)) |
98 | 961 data = compress(d) |
1533
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962 l = len(data[1]) + len(data[0]) |
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963 dist = end - start + l |
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964 |
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965 # full versions are inserted when the needed deltas |
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966 # become comparable to the uncompressed text |
64 | 967 if not n or dist > len(text) * 2: |
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968 data = compress(text) |
1533
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969 l = len(data[1]) + len(data[0]) |
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970 base = n |
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971 else: |
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972 base = self.base(t) |
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973 |
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974 offset = 0 |
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975 if t >= 0: |
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976 offset = self.end(t) |
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977 |
2142
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Thomas Arendsen Hein <thomas@intevation.de>
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|
978 if self.version == REVLOGV0: |
2072 | 979 e = (offset, l, base, link, p1, p2, node) |
980 else: | |
981 e = (self.offset_type(offset, 0), l, len(text), | |
982 base, link, self.rev(p1), self.rev(p2), node) | |
515 | 983 |
0
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984 self.index.append(e) |
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985 self.nodemap[node] = n |
2072 | 986 entry = struct.pack(self.indexformat, *e) |
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987 |
2073 | 988 if not self.inlinedata(): |
989 transaction.add(self.datafile, offset) | |
990 transaction.add(self.indexfile, n * len(entry)) | |
991 f = self.opener(self.datafile, "a") | |
992 if data[0]: | |
993 f.write(data[0]) | |
994 f.write(data[1]) | |
2089
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995 f.close() |
2073 | 996 f = self.opener(self.indexfile, "a") |
997 else: | |
998 f = self.opener(self.indexfile, "a+") | |
2077
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999 f.seek(0, 2) |
2084 | 1000 transaction.add(self.indexfile, f.tell(), self.count() - 1) |
2072 | 1001 |
2142
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1002 if len(self.index) == 1 and self.version != REVLOGV0: |
2072 | 1003 l = struct.pack(versionformat, self.version) |
1004 f.write(l) | |
1005 entry = entry[4:] | |
1006 | |
1007 f.write(entry) | |
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1008 |
2073 | 1009 if self.inlinedata(): |
1010 f.write(data[0]) | |
1011 f.write(data[1]) | |
2075
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1012 self.checkinlinesize(transaction, f) |
2073 | 1013 |
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1014 self.cache = (node, n, text) |
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1015 return node |
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1016 |
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1017 def ancestor(self, a, b): |
1083 | 1018 """calculate the least common ancestor of nodes a and b""" |
2081
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1019 |
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1020 # start with some short cuts for the linear cases |
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1021 if a == b: |
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1022 return a |
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1023 ra = self.rev(a) |
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1024 rb = self.rev(b) |
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1025 if ra < rb: |
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1026 last = b |
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1027 first = a |
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1028 else: |
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1029 last = a |
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1030 first = b |
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1031 |
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1032 # reachable won't include stop in the list, so we have to use a parent |
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1033 reachable = self.reachable(last, stop=self.parents(first)[0]) |
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1034 if first in reachable: |
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1035 return first |
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1036 |
147 | 1037 # calculate the distance of every node from root |
1038 dist = {nullid: 0} | |
1039 for i in xrange(self.count()): | |
1040 n = self.node(i) | |
1041 p1, p2 = self.parents(n) | |
1042 dist[n] = max(dist[p1], dist[p2]) + 1 | |
515 | 1043 |
147 | 1044 # traverse ancestors in order of decreasing distance from root |
1045 def ancestors(node): | |
1046 # we store negative distances because heap returns smallest member | |
1047 h = [(-dist[node], node)] | |
1048 seen = {} | |
1049 while h: | |
1050 d, n = heapq.heappop(h) | |
1051 if n not in seen: | |
1052 seen[n] = 1 | |
1351
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1325
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1053 yield (-d, n) |
147 | 1054 for p in self.parents(n): |
1055 heapq.heappush(h, (-dist[p], p)) | |
45
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1056 |
1351
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1057 def generations(node): |
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1058 sg, s = None, {} |
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1059 for g,n in ancestors(node): |
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1060 if g != sg: |
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1061 if sg: |
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1062 yield sg, s |
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1063 sg, s = g, {n:1} |
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1064 else: |
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1065 s[n] = 1 |
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1066 yield sg, s |
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1067 |
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1068 x = generations(a) |
0e2be889ccd7
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1069 y = generations(b) |
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1070 gx = x.next() |
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1071 gy = y.next() |
45
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1072 |
147 | 1073 # increment each ancestor list until it is closer to root than |
1074 # the other, or they match | |
1075 while 1: | |
1351
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1076 #print "ancestor gen %s %s" % (gx[0], gy[0]) |
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1077 if gx[0] == gy[0]: |
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1078 # find the intersection |
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1079 i = [ n for n in gx[1] if n in gy[1] ] |
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1080 if i: |
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1081 return i[0] |
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1082 else: |
0e2be889ccd7
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|
1083 #print "next" |
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1084 gy = y.next() |
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1085 gx = x.next() |
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1086 elif gx[0] < gy[0]: |
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1087 #print "next y" |
0e2be889ccd7
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1088 gy = y.next() |
0e2be889ccd7
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1089 else: |
0e2be889ccd7
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1090 #print "next x" |
0e2be889ccd7
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1091 gx = x.next() |
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1092 |
1598
14d1f1868bf6
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1093 def group(self, nodelist, lookup, infocollect=None): |
1083 | 1094 """calculate a delta group |
46 | 1095 |
1083 | 1096 Given a list of changeset revs, return a set of deltas and |
1097 metadata corresponding to nodes. the first delta is | |
1098 parent(nodes[0]) -> nodes[0] the receiver is guaranteed to | |
1099 have this parent as it has all history before these | |
1100 changesets. parent is parent[0] | |
1101 """ | |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1102 revs = [self.rev(n) for n in nodelist] |
46 | 1103 |
1104 # if we don't have any revisions touched by these changesets, bail | |
192 | 1105 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
|
1106 yield changegroup.closechunk() |
192 | 1107 return |
46 | 1108 |
1109 # add the parent of the first rev | |
1110 p = self.parents(self.node(revs[0]))[0] | |
1111 revs.insert(0, self.rev(p)) | |
1112 | |
1113 # build deltas | |
71
47c9a869adee
Add mdiff.patches to speed up applying thousands of patches to the manifest
mpm@selenic.com
parents:
67
diff
changeset
|
1114 for d in xrange(0, len(revs) - 1): |
46 | 1115 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
|
1116 nb = self.node(b) |
192 | 1117 |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1118 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
|
1119 infocollect(nb) |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1120 |
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
1121 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
|
1122 p = self.parents(nb) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1123 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
|
1124 yield changegroup.genchunk("%s%s" % (meta, d)) |
46 | 1125 |
1981
736b6c96bbbc
make incoming work via ssh (issue139); move chunk code into separate module.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1941
diff
changeset
|
1126 yield changegroup.closechunk() |
192 | 1127 |
1062 | 1128 def addgroup(self, revs, linkmapper, transaction, unique=0): |
1083 | 1129 """ |
1130 add a delta group | |
46 | 1131 |
1083 | 1132 given a set of deltas, add them to the revision log. the |
1133 first delta is against its parent, which should be in our | |
1134 log, the rest are against the previous delta. | |
1135 """ | |
1136 | |
1137 #track the base of the current delta log | |
46 | 1138 r = self.count() |
1139 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
|
1140 node = None |
515 | 1141 |
655 | 1142 base = prev = -1 |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1143 start = end = textlen = 0 |
46 | 1144 if r: |
1145 end = self.end(t) | |
1146 | |
2072 | 1147 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
|
1148 ifh.seek(0, 2) |
2084 | 1149 transaction.add(self.indexfile, ifh.tell(), self.count()) |
2073 | 1150 if self.inlinedata(): |
1151 dfh = None | |
1152 else: | |
1153 transaction.add(self.datafile, end) | |
1154 dfh = self.opener(self.datafile, "a") | |
46 | 1155 |
1156 # loop through our set of deltas | |
192 | 1157 chain = None |
1158 for chunk in revs: | |
1159 node, p1, p2, cs = struct.unpack("20s20s20s20s", chunk[:80]) | |
94 | 1160 link = linkmapper(cs) |
77 | 1161 if node in self.nodemap: |
224
ccbcc4d76f81
fix bad assumption about uniqueness of file versions
mpm@selenic.com
parents:
221
diff
changeset
|
1162 # 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
|
1163 # 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
|
1164 # 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
|
1165 chain = node |
224
ccbcc4d76f81
fix bad assumption about uniqueness of file versions
mpm@selenic.com
parents:
221
diff
changeset
|
1166 continue |
192 | 1167 delta = chunk[80:] |
1168 | |
1509
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
1169 for p in (p1, p2): |
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
1170 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
|
1171 raise RevlogError(_("unknown parent %s") % short(p)) |
1509
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
1172 |
192 | 1173 if not chain: |
1174 # retrieve the parent revision of the delta chain | |
1175 chain = p1 | |
1176 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
|
1177 raise RevlogError(_("unknown base %s") % short(chain[:4])) |
46 | 1178 |
1179 # full versions are inserted when the needed deltas become | |
1180 # comparable to the uncompressed text or when the previous | |
1181 # version is not the one we have a delta against. We use | |
1182 # the size of the previous full rev as a proxy for the | |
1183 # current size. | |
1184 | |
1185 if chain == prev: | |
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
1186 tempd = compress(delta) |
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
1187 cdelta = tempd[0] + tempd[1] |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1188 textlen = mdiff.patchedsize(textlen, delta) |
46 | 1189 |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1190 if chain != prev or (end - start + len(cdelta)) > textlen * 2: |
46 | 1191 # flush our writes here so we can read it in revision |
2072 | 1192 if dfh: |
1193 dfh.flush() | |
46 | 1194 ifh.flush() |
65
d40cc5aacc31
Fix up a bunch of bugs in the new merge code
mpm@selenic.com
parents:
64
diff
changeset
|
1195 text = self.revision(chain) |
73 | 1196 text = self.patches(text, [delta]) |
46 | 1197 chk = self.addrevision(text, transaction, link, p1, p2) |
1198 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
|
1199 raise RevlogError(_("consistency error adding group")) |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1200 textlen = len(text) |
46 | 1201 else: |
2142
8a1e2a9c7013
Replaced 0 with REVLOGV0 where this meaning is used.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
2141
diff
changeset
|
1202 if self.version == REVLOGV0: |
2072 | 1203 e = (end, len(cdelta), base, link, p1, p2, node) |
1204 else: | |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1205 e = (self.offset_type(end, 0), len(cdelta), textlen, base, |
2072 | 1206 link, self.rev(p1), self.rev(p2), node) |
46 | 1207 self.index.append(e) |
1208 self.nodemap[node] = r | |
2073 | 1209 if self.inlinedata(): |
1210 ifh.write(struct.pack(self.indexformat, *e)) | |
1211 ifh.write(cdelta) | |
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
1212 self.checkinlinesize(transaction, ifh) |
2073 | 1213 if not self.inlinedata(): |
1214 dfh = self.opener(self.datafile, "a") | |
1215 ifh = self.opener(self.indexfile, "a") | |
1216 else: | |
1217 if not dfh: | |
1218 # addrevision switched from inline to conventional | |
1219 # reopen the index | |
1220 dfh = self.opener(self.datafile, "a") | |
1221 ifh = self.opener(self.indexfile, "a") | |
1222 dfh.write(cdelta) | |
1223 ifh.write(struct.pack(self.indexformat, *e)) | |
46 | 1224 |
65
d40cc5aacc31
Fix up a bunch of bugs in the new merge code
mpm@selenic.com
parents:
64
diff
changeset
|
1225 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
|
1226 base = self.base(t) |
d457fec76ab0
fix warnings from pychecker (unused variables and shadowing)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1711
diff
changeset
|
1227 start = self.start(base) |
46 | 1228 end = self.end(t) |
1229 | |
1230 return node | |
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1231 |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1232 def strip(self, rev, minlink): |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1233 if self.count() == 0 or rev >= self.count(): |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1234 return |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1235 |
2072 | 1236 if isinstance(self.index, lazyindex): |
1237 self.loadindexmap() | |
1238 | |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1239 # 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
|
1240 # does not actually belong to an older changeset. |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1241 # The minlink parameter defines the oldest revision |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1242 # we're allowed to strip away. |
2072 | 1243 while minlink > self.index[rev][-4]: |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1244 rev += 1 |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1245 if rev >= self.count(): |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1246 return |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1247 |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1248 # first truncate the files on disk |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1249 end = self.start(rev) |
2073 | 1250 if not self.inlinedata(): |
1251 df = self.opener(self.datafile, "a") | |
1252 df.truncate(end) | |
1253 end = rev * struct.calcsize(self.indexformat) | |
1254 else: | |
1255 end += rev * struct.calcsize(self.indexformat) | |
2072 | 1256 |
1257 indexf = self.opener(self.indexfile, "a") | |
1258 indexf.truncate(end) | |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1259 |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1260 # 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
|
1261 self.cache = None |
1711 | 1262 self.chunkcache = None |
2072 | 1263 for x in xrange(rev, self.count()): |
1264 del self.nodemap[self.node(x)] | |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1265 |
2072 | 1266 del self.index[rev:] |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1267 |
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1268 def checksize(self): |
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1269 expected = 0 |
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1270 if self.count(): |
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1271 expected = self.end(self.count() - 1) |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1272 |
1494
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1273 try: |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1274 f = self.opener(self.datafile) |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1275 f.seek(0, 2) |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1276 actual = f.tell() |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1277 dd = actual - expected |
1494
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1278 except IOError, inst: |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1279 if inst.errno != errno.ENOENT: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1280 raise |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1281 dd = 0 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1282 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1283 try: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1284 f = self.opener(self.indexfile) |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1285 f.seek(0, 2) |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1286 actual = f.tell() |
2072 | 1287 s = struct.calcsize(self.indexformat) |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1288 i = actual / s |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1289 di = actual - (i * s) |
2073 | 1290 if self.inlinedata(): |
1291 databytes = 0 | |
1292 for r in xrange(self.count()): | |
1293 databytes += self.length(r) | |
1294 dd = 0 | |
1295 di = actual - self.count() * s - databytes | |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1296 except IOError, inst: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1297 if inst.errno != errno.ENOENT: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1298 raise |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1299 di = 0 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1300 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1301 return (dd, di) |
1494
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1302 |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1303 |