Mercurial > hg > mercurial-crew-with-dirclash
annotate mercurial/revlog.py @ 2660:ad329294d808
Added signature for changeset 2be3001847cb18a23c403439d9e7d0ace30804e9
author | Matt Mackall <mpm@selenic.com> |
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date | Mon, 24 Jul 2006 17:17:07 -0500 |
parents | f23973ea3107 |
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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 | |
7 Copyright 2005 Matt Mackall <mpm@selenic.com> | |
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) | |
142 data = self.dataf.read(blocksize) | |
143 lend = len(data) / self.s | |
144 i = blockstart / self.s | |
145 off = 0 | |
146 for x in xrange(lend): | |
147 if self.index[i + x] == None: | |
148 b = data[off : off + self.s] | |
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149 self.index[i + x] = b |
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150 n = b[self.shaoffset:self.shaoffset + 20] |
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151 self.map[n] = i + x |
2079 | 152 off += self.s |
153 | |
154 def findnode(self, node): | |
155 """search backwards through the index file for a specific node""" | |
156 if self.allmap: return None | |
157 | |
158 # hg log will cause many many searches for the manifest | |
159 # nodes. After we get called a few times, just load the whole | |
160 # thing. | |
161 if self.mapfind_count > 8: | |
162 self.loadmap() | |
163 if node in self.map: | |
164 return node | |
165 return None | |
166 self.mapfind_count += 1 | |
167 last = self.l - 1 | |
168 while self.index[last] != None: | |
169 if last == 0: | |
170 self.all = 1 | |
171 self.allmap = 1 | |
172 return None | |
173 last -= 1 | |
174 end = (last + 1) * self.s | |
175 blocksize = self.s * 256 | |
176 while end >= 0: | |
177 start = max(end - blocksize, 0) | |
178 self.dataf.seek(start) | |
179 data = self.dataf.read(end - start) | |
180 findend = end - start | |
181 while True: | |
182 # we're searching backwards, so weh have to make sure | |
183 # we don't find a changeset where this node is a parent | |
184 off = data.rfind(node, 0, findend) | |
185 findend = off | |
186 if off >= 0: | |
187 i = off / self.s | |
188 off = i * self.s | |
189 n = data[off + self.shaoffset:off + self.shaoffset + 20] | |
190 if n == node: | |
191 self.map[n] = i + start / self.s | |
192 return node | |
193 else: | |
194 break | |
195 end -= blocksize | |
196 return None | |
197 | |
198 def loadindex(self, i=None, end=None): | |
199 if self.all: return | |
200 all = False | |
201 if i == None: | |
202 blockstart = 0 | |
203 blocksize = (512 / self.s) * self.s | |
204 end = self.datasize | |
205 all = True | |
323 | 206 else: |
2079 | 207 if end: |
208 blockstart = i * self.s | |
209 end = end * self.s | |
210 blocksize = end - blockstart | |
211 else: | |
212 blockstart = (i & ~(32)) * self.s | |
213 blocksize = self.s * 64 | |
214 end = blockstart + blocksize | |
215 while blockstart < end: | |
216 self.loadblock(blockstart, blocksize) | |
217 blockstart += blocksize | |
218 if all: self.all = True | |
515 | 219 |
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220 class lazyindex(object): |
1083 | 221 """a lazy version of the index array""" |
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222 def __init__(self, parser): |
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223 self.p = parser |
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224 def __len__(self): |
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225 return len(self.p.index) |
115 | 226 def load(self, pos): |
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227 if pos < 0: |
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228 pos += len(self.p.index) |
2079 | 229 self.p.loadindex(pos) |
115 | 230 return self.p.index[pos] |
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231 def __getitem__(self, pos): |
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232 ret = self.p.index[pos] or self.load(pos) |
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233 if isinstance(ret, str): |
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234 ret = struct.unpack(self.p.indexformat, ret) |
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235 return ret |
2072 | 236 def __setitem__(self, pos, item): |
237 self.p.index[pos] = item | |
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238 def __delitem__(self, pos): |
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239 del self.p.index[pos] |
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240 def append(self, e): |
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241 self.p.index.append(e) |
515 | 242 |
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243 class lazymap(object): |
1083 | 244 """a lazy version of the node map""" |
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245 def __init__(self, parser): |
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246 self.p = parser |
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247 def load(self, key): |
2079 | 248 n = self.p.findnode(key) |
249 if n == None: | |
1214 | 250 raise KeyError(key) |
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251 def __contains__(self, key): |
2079 | 252 if key in self.p.map: |
253 return True | |
254 self.p.loadmap() | |
323 | 255 return key in self.p.map |
97 | 256 def __iter__(self): |
469 | 257 yield nullid |
97 | 258 for i in xrange(self.p.l): |
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259 ret = self.p.index[i] |
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260 if not ret: |
2079 | 261 self.p.loadindex(i) |
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262 ret = self.p.index[i] |
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263 if isinstance(ret, str): |
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264 ret = struct.unpack(self.p.indexformat, ret) |
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265 yield ret[-1] |
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266 def __getitem__(self, key): |
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267 try: |
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268 return self.p.map[key] |
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269 except KeyError: |
86
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270 try: |
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271 self.load(key) |
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272 return self.p.map[key] |
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273 except KeyError: |
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274 raise KeyError("node " + hex(key)) |
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275 def __setitem__(self, key, val): |
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276 self.p.map[key] = val |
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277 def __delitem__(self, key): |
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278 del self.p.map[key] |
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279 |
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280 class RevlogError(Exception): pass |
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281 |
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282 class revlog(object): |
1083 | 283 """ |
284 the underlying revision storage object | |
285 | |
286 A revlog consists of two parts, an index and the revision data. | |
287 | |
288 The index is a file with a fixed record size containing | |
289 information on each revision, includings its nodeid (hash), the | |
290 nodeids of its parents, the position and offset of its data within | |
291 the data file, and the revision it's based on. Finally, each entry | |
292 contains a linkrev entry that can serve as a pointer to external | |
293 data. | |
294 | |
295 The revision data itself is a linear collection of data chunks. | |
296 Each chunk represents a revision and is usually represented as a | |
297 delta against the previous chunk. To bound lookup time, runs of | |
298 deltas are limited to about 2 times the length of the original | |
299 version data. This makes retrieval of a version proportional to | |
300 its size, or O(1) relative to the number of revisions. | |
301 | |
302 Both pieces of the revlog are written to in an append-only | |
303 fashion, which means we never need to rewrite a file to insert or | |
304 remove data, and can use some simple techniques to avoid the need | |
305 for locking while reading. | |
306 """ | |
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307 def __init__(self, opener, indexfile, datafile, |
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308 defversion=REVLOG_DEFAULT_VERSION): |
1083 | 309 """ |
310 create a revlog object | |
311 | |
312 opener is a function that abstracts the file opening operation | |
313 and can be used to implement COW semantics or the like. | |
314 """ | |
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315 self.indexfile = indexfile |
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316 self.datafile = datafile |
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317 self.opener = opener |
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318 |
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319 self.indexstat = None |
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320 self.cache = None |
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321 self.chunkcache = None |
2072 | 322 self.defversion = defversion |
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323 self.load() |
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324 |
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325 def load(self): |
2072 | 326 v = self.defversion |
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327 try: |
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328 f = self.opener(self.indexfile) |
2079 | 329 i = f.read(4) |
330 f.seek(0) | |
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331 except IOError, inst: |
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332 if inst.errno != errno.ENOENT: |
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333 raise |
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334 i = "" |
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335 else: |
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336 try: |
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337 st = util.fstat(f) |
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338 except AttributeError, inst: |
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339 st = None |
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340 else: |
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341 oldst = self.indexstat |
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342 if (oldst and st.st_dev == oldst.st_dev |
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343 and st.st_ino == oldst.st_ino |
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344 and st.st_mtime == oldst.st_mtime |
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345 and st.st_ctime == oldst.st_ctime): |
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346 return |
2072 | 347 self.indexstat = st |
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348 if len(i) > 0: |
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349 v = struct.unpack(versionformat, i)[0] |
2073 | 350 flags = v & ~0xFFFF |
351 fmt = v & 0xFFFF | |
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352 if fmt == REVLOGV0: |
2073 | 353 if flags: |
354 raise RevlogError(_("index %s invalid flags %x for format v0" % | |
355 (self.indexfile, flags))) | |
356 elif fmt == REVLOGNG: | |
357 if flags & ~REVLOGNGINLINEDATA: | |
358 raise RevlogError(_("index %s invalid flags %x for revlogng" % | |
359 (self.indexfile, flags))) | |
360 else: | |
361 raise RevlogError(_("index %s invalid format %d" % | |
362 (self.indexfile, fmt))) | |
2072 | 363 self.version = v |
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364 if v == REVLOGV0: |
2072 | 365 self.indexformat = indexformatv0 |
2079 | 366 shaoffset = v0shaoffset |
2072 | 367 else: |
368 self.indexformat = indexformatng | |
2079 | 369 shaoffset = ngshaoffset |
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370 |
2072 | 371 if i: |
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372 if (lazyparser.safe_to_use and not self.inlinedata() and |
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373 st and st.st_size > 10000): |
2072 | 374 # big index, let's parse it on demand |
2079 | 375 parser = lazyparser(f, st.st_size, self.indexformat, shaoffset) |
2072 | 376 self.index = lazyindex(parser) |
377 self.nodemap = lazymap(parser) | |
378 else: | |
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379 self.parseindex(f, st) |
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380 if self.version != REVLOGV0: |
2072 | 381 e = list(self.index[0]) |
382 type = self.ngtype(e[0]) | |
383 e[0] = self.offset_type(0, type) | |
384 self.index[0] = e | |
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385 else: |
2072 | 386 self.nodemap = { nullid: -1} |
387 self.index = [] | |
388 | |
389 | |
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390 def parseindex(self, fp, st): |
2072 | 391 s = struct.calcsize(self.indexformat) |
392 self.index = [] | |
393 self.nodemap = {nullid: -1} | |
2073 | 394 inline = self.inlinedata() |
2072 | 395 n = 0 |
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396 leftover = None |
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397 while True: |
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398 if st: |
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399 data = fp.read(65536) |
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400 else: |
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401 # hack for httprangereader, it doesn't do partial reads well |
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402 data = fp.read() |
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403 if not data: |
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404 break |
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405 if n == 0 and self.inlinedata(): |
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406 # cache the first chunk |
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407 self.chunkcache = (0, data) |
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408 if leftover: |
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409 data = leftover + data |
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410 leftover = None |
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411 off = 0 |
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412 l = len(data) |
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413 while off < l: |
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414 if l - off < s: |
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415 leftover = data[off:] |
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416 break |
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417 cur = data[off:off + s] |
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418 off += s |
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419 e = struct.unpack(self.indexformat, cur) |
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420 self.index.append(e) |
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421 self.nodemap[e[-1]] = n |
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422 n += 1 |
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423 if inline: |
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424 off += e[1] |
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425 if off > l: |
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426 # some things don't seek well, just read it |
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427 fp.read(off - l) |
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428 if not st: |
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429 break |
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430 |
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431 |
2072 | 432 def ngoffset(self, q): |
433 if q & 0xFFFF: | |
434 raise RevlogError(_('%s: incompatible revision flag %x') % | |
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435 (self.indexfile, q)) |
2072 | 436 return long(q >> 16) |
437 | |
438 def ngtype(self, q): | |
439 return int(q & 0xFFFF) | |
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440 |
2072 | 441 def offset_type(self, offset, type): |
442 return long(long(offset) << 16 | type) | |
443 | |
2079 | 444 def loadindex(self, start, end): |
445 """load a block of indexes all at once from the lazy parser""" | |
446 if isinstance(self.index, lazyindex): | |
447 self.index.p.loadindex(start, end) | |
448 | |
2072 | 449 def loadindexmap(self): |
450 """loads both the map and the index from the lazy parser""" | |
451 if isinstance(self.index, lazyindex): | |
452 p = self.index.p | |
2079 | 453 p.loadindex() |
454 self.nodemap = p.map | |
455 | |
456 def loadmap(self): | |
457 """loads the map from the lazy parser""" | |
458 if isinstance(self.nodemap, lazymap): | |
459 self.nodemap.p.loadmap() | |
460 self.nodemap = self.nodemap.p.map | |
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461 |
2073 | 462 def inlinedata(self): return self.version & REVLOGNGINLINEDATA |
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463 def tip(self): return self.node(len(self.index) - 1) |
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464 def count(self): return len(self.index) |
2072 | 465 def node(self, rev): |
466 return (rev < 0) and nullid or self.index[rev][-1] | |
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467 def rev(self, node): |
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468 try: |
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469 return self.nodemap[node] |
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470 except KeyError: |
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471 raise RevlogError(_('%s: no node %s') % (self.indexfile, hex(node))) |
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472 def linkrev(self, node): |
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473 return (node == nullid) and -1 or self.index[self.rev(node)][-4] |
2 | 474 def parents(self, node): |
475 if node == nullid: return (nullid, nullid) | |
2072 | 476 r = self.rev(node) |
477 d = self.index[r][-3:-1] | |
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478 if self.version == REVLOGV0: |
2072 | 479 return d |
480 return [ self.node(x) for x in d ] | |
2489
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481 def parentrevs(self, rev): |
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482 if rev == -1: |
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|
483 return (-1, -1) |
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|
484 d = self.index[rev][-3:-1] |
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|
485 if self.version == REVLOGV0: |
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486 return [ self.rev(x) for x in d ] |
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|
487 return d |
2072 | 488 def start(self, rev): |
489 if rev < 0: | |
490 return -1 | |
2142
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Replaced 0 with REVLOGV0 where this meaning is used.
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491 if self.version != REVLOGV0: |
2072 | 492 return self.ngoffset(self.index[rev][0]) |
493 return self.index[rev][0] | |
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494 |
2072 | 495 def end(self, rev): return self.start(rev) + self.length(rev) |
0
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496 |
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497 def size(self, rev): |
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498 """return the length of the uncompressed text for a given revision""" |
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499 l = -1 |
2142
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500 if self.version != REVLOGV0: |
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501 l = self.index[rev][2] |
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502 if l >= 0: |
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503 return l |
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|
504 |
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505 t = self.revision(self.node(rev)) |
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506 return len(t) |
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507 |
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508 # alternate implementation, The advantage to this code is it |
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509 # will be faster for a single revision. But, the results are not |
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510 # cached, so finding the size of every revision will be slower. |
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511 """ |
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512 if self.cache and self.cache[1] == rev: |
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513 return len(self.cache[2]) |
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514 |
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515 base = self.base(rev) |
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516 if self.cache and self.cache[1] >= base and self.cache[1] < rev: |
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517 base = self.cache[1] |
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518 text = self.cache[2] |
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519 else: |
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520 text = self.revision(self.node(base)) |
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521 |
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522 l = len(text) |
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523 for x in xrange(base + 1, rev + 1): |
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524 l = mdiff.patchedsize(l, self.chunk(x)) |
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525 return l |
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|
526 """ |
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527 |
1941
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528 def length(self, rev): |
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529 if rev < 0: |
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|
530 return 0 |
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|
531 else: |
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532 return self.index[rev][1] |
2072 | 533 def base(self, rev): return (rev < 0) and rev or self.index[rev][-5] |
0
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|
534 |
1074
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535 def reachable(self, rev, stop=None): |
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536 reachable = {} |
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537 visit = [rev] |
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538 reachable[rev] = 1 |
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|
539 if stop: |
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540 stopn = self.rev(stop) |
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|
541 else: |
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|
542 stopn = 0 |
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|
543 while visit: |
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544 n = visit.pop(0) |
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545 if n == stop: |
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|
546 continue |
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|
547 if n == nullid: |
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|
548 continue |
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|
549 for p in self.parents(n): |
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550 if self.rev(p) < stopn: |
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|
551 continue |
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|
552 if p not in reachable: |
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553 reachable[p] = 1 |
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|
554 visit.append(p) |
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|
555 return reachable |
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|
556 |
1457
518da3c3b6ce
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|
557 def nodesbetween(self, roots=None, heads=None): |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
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|
558 """Return a tuple containing three elements. Elements 1 and 2 contain |
518da3c3b6ce
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diff
changeset
|
559 a final list bases and heads after all the unreachable ones have been |
518da3c3b6ce
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parents:
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diff
changeset
|
560 pruned. Element 0 contains a topologically sorted list of all |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
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diff
changeset
|
561 |
518da3c3b6ce
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parents:
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diff
changeset
|
562 nodes that satisfy these constraints: |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
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changeset
|
563 1. All nodes must be descended from a node in roots (the nodes on |
518da3c3b6ce
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diff
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|
564 roots are considered descended from themselves). |
518da3c3b6ce
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|
565 2. All nodes must also be ancestors of a node in heads (the nodes in |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
parents:
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diff
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|
566 heads are considered to be their own ancestors). |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
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diff
changeset
|
567 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
568 If roots is unspecified, nullid is assumed as the only root. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
569 If heads is unspecified, it is taken to be the output of the |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
570 heads method (i.e. a list of all nodes in the repository that |
518da3c3b6ce
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|
571 have no children).""" |
1463
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Fix to handle case of empty list for roots or heads in nodesbetween.
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parents:
1459
diff
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|
572 nonodes = ([], [], []) |
1457
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Eric Hopper <hopper@omnifarious.org>
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|
573 if roots is not None: |
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|
574 roots = list(roots) |
1463
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parents:
1459
diff
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|
575 if not roots: |
26e73acc0cdf
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|
576 return nonodes |
1457
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diff
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|
577 lowestrev = min([self.rev(n) for n in roots]) |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
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diff
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|
578 else: |
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parents:
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diff
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|
579 roots = [nullid] # Everybody's a descendent of nullid |
518da3c3b6ce
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changeset
|
580 lowestrev = -1 |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
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diff
changeset
|
581 if (lowestrev == -1) and (heads is None): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
582 # We want _all_ the nodes! |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
583 return ([self.node(r) for r in xrange(0, self.count())], |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
584 [nullid], list(self.heads())) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
585 if heads is None: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
586 # All nodes are ancestors, so the latest ancestor is the last |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
587 # node. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
588 highestrev = self.count() - 1 |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
589 # Set ancestors to None to signal that every node is an ancestor. |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
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diff
changeset
|
590 ancestors = None |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
591 # Set heads to an empty dictionary for later discovery of heads |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
592 heads = {} |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
593 else: |
1463
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents:
1459
diff
changeset
|
594 heads = list(heads) |
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents:
1459
diff
changeset
|
595 if not heads: |
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents:
1459
diff
changeset
|
596 return nonodes |
1457
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This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
597 ancestors = {} |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
598 # Start at the top and keep marking parents until we're done. |
1463
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents:
1459
diff
changeset
|
599 nodestotag = heads[:] |
1457
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
600 # Turn heads into a dictionary so we can remove 'fake' heads. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
601 # Also, later we will be using it to filter out the heads we can't |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
602 # find from roots. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
603 heads = dict.fromkeys(heads, 0) |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
604 # Remember where the top was so we can use it as a limit later. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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605 highestrev = max([self.rev(n) for n in nodestotag]) |
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606 while nodestotag: |
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607 # grab a node to tag |
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608 n = nodestotag.pop() |
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609 # Never tag nullid |
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610 if n == nullid: |
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611 continue |
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612 # A node's revision number represents its place in a |
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613 # topologically sorted list of nodes. |
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614 r = self.rev(n) |
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615 if r >= lowestrev: |
518da3c3b6ce
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616 if n not in ancestors: |
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617 # If we are possibly a descendent of one of the roots |
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618 # and we haven't already been marked as an ancestor |
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619 ancestors[n] = 1 # Mark as ancestor |
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620 # Add non-nullid parents to list of nodes to tag. |
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621 nodestotag.extend([p for p in self.parents(n) if |
518da3c3b6ce
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622 p != nullid]) |
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623 elif n in heads: # We've seen it before, is it a fake head? |
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624 # So it is, real heads should not be the ancestors of |
518da3c3b6ce
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625 # any other heads. |
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626 heads.pop(n) |
1459
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Fix small bug in nodesbetween if heads is [nullid].
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627 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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628 return nonodes |
1457
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629 # Now that we have our set of ancestors, we want to remove any |
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630 # roots that are not ancestors. |
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631 |
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632 # If one of the roots was nullid, everything is included anyway. |
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633 if lowestrev > -1: |
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634 # But, since we weren't, let's recompute the lowest rev to not |
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635 # include roots that aren't ancestors. |
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636 |
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637 # Filter out roots that aren't ancestors of heads |
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638 roots = [n for n in roots if n in ancestors] |
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639 # Recompute the lowest revision |
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640 if roots: |
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641 lowestrev = min([self.rev(n) for n in roots]) |
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642 else: |
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643 # No more roots? Return empty list |
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Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
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644 return nonodes |
1457
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645 else: |
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646 # We are descending from nullid, and don't need to care about |
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647 # any other roots. |
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648 lowestrev = -1 |
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649 roots = [nullid] |
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650 # Transform our roots list into a 'set' (i.e. a dictionary where the |
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651 # values don't matter. |
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652 descendents = dict.fromkeys(roots, 1) |
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653 # Also, keep the original roots so we can filter out roots that aren't |
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654 # 'real' roots (i.e. are descended from other roots). |
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655 roots = descendents.copy() |
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656 # Our topologically sorted list of output nodes. |
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657 orderedout = [] |
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658 # Don't start at nullid since we don't want nullid in our output list, |
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659 # and if nullid shows up in descedents, empty parents will look like |
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660 # they're descendents. |
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661 for r in xrange(max(lowestrev, 0), highestrev + 1): |
518da3c3b6ce
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662 n = self.node(r) |
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663 isdescendent = False |
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664 if lowestrev == -1: # Everybody is a descendent of nullid |
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665 isdescendent = True |
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666 elif n in descendents: |
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667 # n is already a descendent |
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668 isdescendent = True |
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669 # This check only needs to be done here because all the roots |
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This implements the nodesbetween method, and it removes the newer method
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670 # will start being marked is descendents before the loop. |
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671 if n in roots: |
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672 # If n was a root, check if it's a 'real' root. |
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673 p = tuple(self.parents(n)) |
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674 # If any of its parents are descendents, it's not a root. |
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675 if (p[0] in descendents) or (p[1] in descendents): |
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676 roots.pop(n) |
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677 else: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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678 p = tuple(self.parents(n)) |
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679 # A node is a descendent if either of its parents are |
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680 # descendents. (We seeded the dependents list with the roots |
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681 # up there, remember?) |
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682 if (p[0] in descendents) or (p[1] in descendents): |
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683 descendents[n] = 1 |
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684 isdescendent = True |
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685 if isdescendent and ((ancestors is None) or (n in ancestors)): |
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686 # Only include nodes that are both descendents and ancestors. |
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687 orderedout.append(n) |
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688 if (ancestors is not None) and (n in heads): |
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689 # We're trying to figure out which heads are reachable |
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690 # from roots. |
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691 # Mark this head as having been reached |
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692 heads[n] = 1 |
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693 elif ancestors is None: |
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694 # Otherwise, we're trying to discover the heads. |
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695 # Assume this is a head because if it isn't, the next step |
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696 # will eventually remove it. |
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697 heads[n] = 1 |
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698 # But, obviously its parents aren't. |
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699 for p in self.parents(n): |
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700 heads.pop(p, None) |
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701 heads = [n for n in heads.iterkeys() if heads[n] != 0] |
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702 roots = roots.keys() |
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703 assert orderedout |
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704 assert roots |
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705 assert heads |
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706 return (orderedout, roots, heads) |
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|
707 |
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|
708 def heads(self, start=None): |
1550
ccb9b62de892
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
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709 """return the list of all nodes that have no children |
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|
710 |
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711 if start is specified, only heads that are descendants of |
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712 start will be returned |
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|
713 |
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|
714 """ |
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|
715 if start is None: |
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|
716 start = nullid |
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|
717 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
|
718 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
|
719 heads = {startrev: 1} |
1083 | 720 |
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
|
721 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
|
722 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
|
723 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
|
724 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
|
725 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
|
726 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
|
727 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
|
728 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
|
729 return [self.node(r) for r in heads] |
370 | 730 |
731 def children(self, node): | |
1083 | 732 """find the children of a given node""" |
370 | 733 c = [] |
734 p = self.rev(node) | |
735 for r in range(p + 1, self.count()): | |
736 n = self.node(r) | |
737 for pn in self.parents(n): | |
854
473c030d34a6
Fixed revlog.children.
Tristan Wibberley <tristan@wibberley.org>
parents:
655
diff
changeset
|
738 if pn == node: |
473c030d34a6
Fixed revlog.children.
Tristan Wibberley <tristan@wibberley.org>
parents:
655
diff
changeset
|
739 c.append(n) |
370 | 740 continue |
741 elif pn == nullid: | |
742 continue | |
743 return c | |
515 | 744 |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
745 def lookup(self, id): |
1083 | 746 """locate a node based on revision number or subset of hex nodeid""" |
2561
494f7787d8ee
revlog: make lookup handle binary nodes
Matt Mackall <mpm@selenic.com>
parents:
2560
diff
changeset
|
747 if id in self.nodemap: |
494f7787d8ee
revlog: make lookup handle binary nodes
Matt Mackall <mpm@selenic.com>
parents:
2560
diff
changeset
|
748 return id |
2560
c35694df7b13
revlog: handle integer arguments to lookup
Matt Mackall <mpm@selenic.com>
parents:
2490
diff
changeset
|
749 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
|
750 return self.node(id) |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
751 try: |
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
752 rev = int(id) |
469 | 753 if str(rev) != id: raise ValueError |
754 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
|
755 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
|
756 return self.node(rev) |
469 | 757 except (ValueError, OverflowError): |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
758 c = [] |
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
759 for n in self.nodemap: |
469 | 760 if hex(n).startswith(id): |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
761 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
|
762 if len(c) > 1: raise RevlogError(_("Ambiguous identifier")) |
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
|
763 if len(c) < 1: raise RevlogError(_("No match found")) |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
764 return c[0] |
515 | 765 |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
766 return None |
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
767 |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
768 def diff(self, a, b): |
1083 | 769 """return a delta between two revisions""" |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
770 return mdiff.textdiff(a, b) |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
771 |
73 | 772 def patches(self, t, pl): |
1083 | 773 """apply a list of patches to a string""" |
73 | 774 return mdiff.patches(t, pl) |
775 | |
2072 | 776 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
|
777 start, length = self.start(rev), self.length(rev) |
2073 | 778 inline = self.inlinedata() |
779 if inline: | |
780 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
|
781 end = start + length |
2072 | 782 def loadcache(df): |
783 cache_length = max(cachelen, length) # 4k | |
784 if not df: | |
2073 | 785 if inline: |
786 df = self.opener(self.indexfile) | |
787 else: | |
788 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
|
789 df.seek(start) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
790 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
|
791 |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
792 if not self.chunkcache: |
2072 | 793 loadcache(df) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
794 |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
795 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
|
796 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
|
797 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
|
798 # it is cached |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
799 offset = start - cache_start |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
800 else: |
2072 | 801 loadcache(df) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
802 offset = 0 |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
803 |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
804 #def checkchunk(): |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
805 # 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
|
806 # df.seek(start) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
807 # return df.read(length) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
808 #assert s == checkchunk() |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
809 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
|
810 |
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
811 def delta(self, node): |
1083 | 812 """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
|
813 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
|
814 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
|
815 |
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
816 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
|
817 """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
|
818 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
|
819 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
|
820 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
|
821 return self.chunk(rev2) |
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
822 else: |
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
823 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
|
824 self.revision(self.node(rev2))) |
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
825 |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
826 def revision(self, node): |
1083 | 827 """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
|
828 if node == nullid: return "" |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
829 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
|
830 |
1083 | 831 # look up what we need to read |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
832 text = None |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
833 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
|
834 base = self.base(rev) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
835 |
2073 | 836 if self.inlinedata(): |
837 # we probably have the whole chunk cached | |
838 df = None | |
839 else: | |
840 df = self.opener(self.datafile) | |
2072 | 841 |
1083 | 842 # do we have useful data cached? |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
843 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
|
844 base = self.cache[1] |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
845 text = self.cache[2] |
2079 | 846 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
|
847 else: |
2079 | 848 self.loadindex(base, rev + 1) |
2072 | 849 text = self.chunk(base, df=df) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
850 |
71
47c9a869adee
Add mdiff.patches to speed up applying thousands of patches to the manifest
mpm@selenic.com
parents:
67
diff
changeset
|
851 bins = [] |
64 | 852 for r in xrange(base + 1, rev + 1): |
2072 | 853 bins.append(self.chunk(r, df=df)) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
854 |
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
855 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
|
856 |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
857 p1, p2 = self.parents(node) |
26 | 858 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
|
859 raise RevlogError(_("integrity check failed on %s:%d") |
98 | 860 % (self.datafile, rev)) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
861 |
9117c6561b0b
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mpm@selenic.com
parents:
diff
changeset
|
862 self.cache = (node, rev, text) |
515 | 863 return text |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
864 |
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
865 def checkinlinesize(self, tr, fp=None): |
2073 | 866 if not self.inlinedata(): |
867 return | |
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
868 if not fp: |
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
869 fp = self.opener(self.indexfile, 'r') |
2082
856f0ba200bc
Additional appendfile fixes for interleaved data/index files
mason@suse.com
parents:
2081
diff
changeset
|
870 fp.seek(0, 2) |
2073 | 871 size = fp.tell() |
872 if size < 131072: | |
873 return | |
2084 | 874 trinfo = tr.find(self.indexfile) |
875 if trinfo == None: | |
876 raise RevlogError(_("%s not found in the transaction" % | |
877 self.indexfile)) | |
878 | |
879 trindex = trinfo[2] | |
880 dataoff = self.start(trindex) | |
881 | |
882 tr.add(self.datafile, dataoff) | |
2073 | 883 df = self.opener(self.datafile, 'w') |
884 calc = struct.calcsize(self.indexformat) | |
885 for r in xrange(self.count()): | |
886 start = self.start(r) + (r + 1) * calc | |
887 length = self.length(r) | |
888 fp.seek(start) | |
889 d = fp.read(length) | |
890 df.write(d) | |
891 fp.close() | |
892 df.close() | |
2076
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
893 fp = self.opener(self.indexfile, 'w', atomictemp=True) |
2073 | 894 self.version &= ~(REVLOGNGINLINEDATA) |
895 if self.count(): | |
896 x = self.index[0] | |
897 e = struct.pack(self.indexformat, *x)[4:] | |
898 l = struct.pack(versionformat, self.version) | |
899 fp.write(l) | |
900 fp.write(e) | |
901 | |
902 for i in xrange(1, self.count()): | |
903 x = self.index[i] | |
904 e = struct.pack(self.indexformat, *x) | |
905 fp.write(e) | |
906 | |
2076
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
907 # if we don't call rename, the temp file will never replace the |
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
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diff
changeset
|
908 # real index |
d007df6daf8e
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diff
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|
909 fp.rename() |
2084 | 910 |
911 tr.replace(self.indexfile, trindex * calc) | |
2073 | 912 self.chunkcache = None |
913 | |
644 | 914 def addrevision(self, text, transaction, link, p1=None, p2=None, d=None): |
1083 | 915 """add a revision to the log |
916 | |
917 text - the revision data to add | |
918 transaction - the transaction object used for rollback | |
919 link - the linkrev data to add | |
920 p1, p2 - the parent nodeids of the revision | |
921 d - an optional precomputed delta | |
922 """ | |
0
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|
923 if text is None: text = "" |
9117c6561b0b
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|
924 if p1 is None: p1 = self.tip() |
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|
925 if p2 is None: p2 = nullid |
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|
926 |
9117c6561b0b
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|
927 node = hash(text, p1, p2) |
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|
928 |
301 | 929 if node in self.nodemap: |
930 return node | |
931 | |
0
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|
932 n = self.count() |
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|
933 t = n - 1 |
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|
934 |
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|
935 if n: |
64 | 936 base = self.base(t) |
937 start = self.start(base) | |
0
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|
938 end = self.end(t) |
644 | 939 if not d: |
940 prev = self.revision(self.tip()) | |
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
941 d = self.diff(prev, str(text)) |
98 | 942 data = compress(d) |
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
943 l = len(data[1]) + len(data[0]) |
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
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|
944 dist = end - start + l |
0
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|
945 |
9117c6561b0b
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|
946 # full versions are inserted when the needed deltas |
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|
947 # become comparable to the uncompressed text |
64 | 948 if not n or dist > len(text) * 2: |
0
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Add back links from file revisions to changeset revisions
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changeset
|
949 data = compress(text) |
1533
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Reduce string duplication in compression code
mason@suse.com
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1509
diff
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|
950 l = len(data[1]) + len(data[0]) |
0
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|
951 base = n |
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|
952 else: |
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|
953 base = self.base(t) |
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|
954 |
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|
955 offset = 0 |
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|
956 if t >= 0: |
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|
957 offset = self.end(t) |
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|
958 |
2142
8a1e2a9c7013
Replaced 0 with REVLOGV0 where this meaning is used.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
2141
diff
changeset
|
959 if self.version == REVLOGV0: |
2072 | 960 e = (offset, l, base, link, p1, p2, node) |
961 else: | |
962 e = (self.offset_type(offset, 0), l, len(text), | |
963 base, link, self.rev(p1), self.rev(p2), node) | |
515 | 964 |
0
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|
965 self.index.append(e) |
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|
966 self.nodemap[node] = n |
2072 | 967 entry = struct.pack(self.indexformat, *e) |
0
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|
968 |
2073 | 969 if not self.inlinedata(): |
970 transaction.add(self.datafile, offset) | |
971 transaction.add(self.indexfile, n * len(entry)) | |
972 f = self.opener(self.datafile, "a") | |
973 if data[0]: | |
974 f.write(data[0]) | |
975 f.write(data[1]) | |
2089
cb99c711c59f
make appendfile simpler so it does not break with revlogng on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2084
diff
changeset
|
976 f.close() |
2073 | 977 f = self.opener(self.indexfile, "a") |
978 else: | |
979 f = self.opener(self.indexfile, "a+") | |
2077
4d0700ae0991
Fix inlined revlogs to seek to eof after opening "a+"
mason@suse.com
parents:
2076
diff
changeset
|
980 f.seek(0, 2) |
2084 | 981 transaction.add(self.indexfile, f.tell(), self.count() - 1) |
2072 | 982 |
2142
8a1e2a9c7013
Replaced 0 with REVLOGV0 where this meaning is used.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
2141
diff
changeset
|
983 if len(self.index) == 1 and self.version != REVLOGV0: |
2072 | 984 l = struct.pack(versionformat, self.version) |
985 f.write(l) | |
986 entry = entry[4:] | |
987 | |
988 f.write(entry) | |
0
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parents:
diff
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|
989 |
2073 | 990 if self.inlinedata(): |
991 f.write(data[0]) | |
992 f.write(data[1]) | |
2075
343aeefb553b
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mason@suse.com
parents:
2073
diff
changeset
|
993 self.checkinlinesize(transaction, f) |
2073 | 994 |
0
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diff
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|
995 self.cache = (node, n, text) |
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|
996 return node |
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|
997 |
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|
998 def ancestor(self, a, b): |
1083 | 999 """calculate the least common ancestor of nodes a and b""" |
2081
416d8b2a75b8
Speedup revlog.ancestors for the linear case
Chris Mason <mason@suse.com>
parents:
2080
diff
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|
1000 |
416d8b2a75b8
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Chris Mason <mason@suse.com>
parents:
2080
diff
changeset
|
1001 # start with some short cuts for the linear cases |
416d8b2a75b8
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Chris Mason <mason@suse.com>
parents:
2080
diff
changeset
|
1002 if a == b: |
416d8b2a75b8
Speedup revlog.ancestors for the linear case
Chris Mason <mason@suse.com>
parents:
2080
diff
changeset
|
1003 return a |
416d8b2a75b8
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Chris Mason <mason@suse.com>
parents:
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diff
changeset
|
1004 ra = self.rev(a) |
416d8b2a75b8
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Chris Mason <mason@suse.com>
parents:
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diff
changeset
|
1005 rb = self.rev(b) |
416d8b2a75b8
Speedup revlog.ancestors for the linear case
Chris Mason <mason@suse.com>
parents:
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diff
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|
1006 if ra < rb: |
416d8b2a75b8
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Chris Mason <mason@suse.com>
parents:
2080
diff
changeset
|
1007 last = b |
416d8b2a75b8
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Chris Mason <mason@suse.com>
parents:
2080
diff
changeset
|
1008 first = a |
416d8b2a75b8
Speedup revlog.ancestors for the linear case
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parents:
2080
diff
changeset
|
1009 else: |
416d8b2a75b8
Speedup revlog.ancestors for the linear case
Chris Mason <mason@suse.com>
parents:
2080
diff
changeset
|
1010 last = a |
416d8b2a75b8
Speedup revlog.ancestors for the linear case
Chris Mason <mason@suse.com>
parents:
2080
diff
changeset
|
1011 first = b |
416d8b2a75b8
Speedup revlog.ancestors for the linear case
Chris Mason <mason@suse.com>
parents:
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diff
changeset
|
1012 |
416d8b2a75b8
Speedup revlog.ancestors for the linear case
Chris Mason <mason@suse.com>
parents:
2080
diff
changeset
|
1013 # reachable won't include stop in the list, so we have to use a parent |
416d8b2a75b8
Speedup revlog.ancestors for the linear case
Chris Mason <mason@suse.com>
parents:
2080
diff
changeset
|
1014 reachable = self.reachable(last, stop=self.parents(first)[0]) |
416d8b2a75b8
Speedup revlog.ancestors for the linear case
Chris Mason <mason@suse.com>
parents:
2080
diff
changeset
|
1015 if first in reachable: |
416d8b2a75b8
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Chris Mason <mason@suse.com>
parents:
2080
diff
changeset
|
1016 return first |
416d8b2a75b8
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Chris Mason <mason@suse.com>
parents:
2080
diff
changeset
|
1017 |
147 | 1018 # calculate the distance of every node from root |
1019 dist = {nullid: 0} | |
1020 for i in xrange(self.count()): | |
1021 n = self.node(i) | |
1022 p1, p2 = self.parents(n) | |
1023 dist[n] = max(dist[p1], dist[p2]) + 1 | |
515 | 1024 |
147 | 1025 # traverse ancestors in order of decreasing distance from root |
1026 def ancestors(node): | |
1027 # we store negative distances because heap returns smallest member | |
1028 h = [(-dist[node], node)] | |
1029 seen = {} | |
1030 while h: | |
1031 d, n = heapq.heappop(h) | |
1032 if n not in seen: | |
1033 seen[n] = 1 | |
1351
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
1034 yield (-d, n) |
147 | 1035 for p in self.parents(n): |
1036 heapq.heappush(h, (-dist[p], p)) | |
45
f2b2d5daec30
Fix recursion depth trouble with ancestor algorithm
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41
diff
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|
1037 |
1351
0e2be889ccd7
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Matt Mackall <mpm@selenic.com>
parents:
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diff
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|
1038 def generations(node): |
0e2be889ccd7
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parents:
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diff
changeset
|
1039 sg, s = None, {} |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
1040 for g,n in ancestors(node): |
0e2be889ccd7
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parents:
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diff
changeset
|
1041 if g != sg: |
0e2be889ccd7
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parents:
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diff
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|
1042 if sg: |
0e2be889ccd7
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diff
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|
1043 yield sg, s |
0e2be889ccd7
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
1044 sg, s = g, {n:1} |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
1045 else: |
0e2be889ccd7
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Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
1046 s[n] = 1 |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
1047 yield sg, s |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
1048 |
0e2be889ccd7
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Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
1049 x = generations(a) |
0e2be889ccd7
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Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
1050 y = generations(b) |
0e2be889ccd7
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
1051 gx = x.next() |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
1052 gy = y.next() |
45
f2b2d5daec30
Fix recursion depth trouble with ancestor algorithm
mpm@selenic.com
parents:
41
diff
changeset
|
1053 |
147 | 1054 # increment each ancestor list until it is closer to root than |
1055 # the other, or they match | |
1056 while 1: | |
1351
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
1057 #print "ancestor gen %s %s" % (gx[0], gy[0]) |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
1058 if gx[0] == gy[0]: |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
1059 # find the intersection |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
1060 i = [ n for n in gx[1] if n in gy[1] ] |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
1061 if i: |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
1062 return i[0] |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
1063 else: |
0e2be889ccd7
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Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
1064 #print "next" |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
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|
1065 gy = y.next() |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
1066 gx = x.next() |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
1067 elif gx[0] < gy[0]: |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
1068 #print "next y" |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
1069 gy = y.next() |
0e2be889ccd7
Repair ancestor logic, fix up test cases
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diff
changeset
|
1070 else: |
0e2be889ccd7
Repair ancestor logic, fix up test cases
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parents:
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diff
changeset
|
1071 #print "next x" |
0e2be889ccd7
Repair ancestor logic, fix up test cases
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parents:
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diff
changeset
|
1072 gx = x.next() |
0
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|
1073 |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1074 def group(self, nodelist, lookup, infocollect=None): |
1083 | 1075 """calculate a delta group |
46 | 1076 |
1083 | 1077 Given a list of changeset revs, return a set of deltas and |
1078 metadata corresponding to nodes. the first delta is | |
1079 parent(nodes[0]) -> nodes[0] the receiver is guaranteed to | |
1080 have this parent as it has all history before these | |
1081 changesets. parent is parent[0] | |
1082 """ | |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1083 revs = [self.rev(n) for n in nodelist] |
46 | 1084 |
1085 # if we don't have any revisions touched by these changesets, bail | |
192 | 1086 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
|
1087 yield changegroup.closechunk() |
192 | 1088 return |
46 | 1089 |
1090 # add the parent of the first rev | |
1091 p = self.parents(self.node(revs[0]))[0] | |
1092 revs.insert(0, self.rev(p)) | |
1093 | |
1094 # build deltas | |
71
47c9a869adee
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mpm@selenic.com
parents:
67
diff
changeset
|
1095 for d in xrange(0, len(revs) - 1): |
46 | 1096 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
|
1097 nb = self.node(b) |
192 | 1098 |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1099 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
|
1100 infocollect(nb) |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1101 |
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
1102 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
|
1103 p = self.parents(nb) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1104 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
|
1105 yield changegroup.genchunk("%s%s" % (meta, d)) |
46 | 1106 |
1981
736b6c96bbbc
make incoming work via ssh (issue139); move chunk code into separate module.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1941
diff
changeset
|
1107 yield changegroup.closechunk() |
192 | 1108 |
1062 | 1109 def addgroup(self, revs, linkmapper, transaction, unique=0): |
1083 | 1110 """ |
1111 add a delta group | |
46 | 1112 |
1083 | 1113 given a set of deltas, add them to the revision log. the |
1114 first delta is against its parent, which should be in our | |
1115 log, the rest are against the previous delta. | |
1116 """ | |
1117 | |
1118 #track the base of the current delta log | |
46 | 1119 r = self.count() |
1120 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
|
1121 node = None |
515 | 1122 |
655 | 1123 base = prev = -1 |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1124 start = end = textlen = 0 |
46 | 1125 if r: |
1126 end = self.end(t) | |
1127 | |
2072 | 1128 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
|
1129 ifh.seek(0, 2) |
2084 | 1130 transaction.add(self.indexfile, ifh.tell(), self.count()) |
2073 | 1131 if self.inlinedata(): |
1132 dfh = None | |
1133 else: | |
1134 transaction.add(self.datafile, end) | |
1135 dfh = self.opener(self.datafile, "a") | |
46 | 1136 |
1137 # loop through our set of deltas | |
192 | 1138 chain = None |
1139 for chunk in revs: | |
1140 node, p1, p2, cs = struct.unpack("20s20s20s20s", chunk[:80]) | |
94 | 1141 link = linkmapper(cs) |
77 | 1142 if node in self.nodemap: |
224
ccbcc4d76f81
fix bad assumption about uniqueness of file versions
mpm@selenic.com
parents:
221
diff
changeset
|
1143 # 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
|
1144 # 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
|
1145 # 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
|
1146 chain = node |
224
ccbcc4d76f81
fix bad assumption about uniqueness of file versions
mpm@selenic.com
parents:
221
diff
changeset
|
1147 continue |
192 | 1148 delta = chunk[80:] |
1149 | |
1509
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
1150 for p in (p1, p2): |
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
1151 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
|
1152 raise RevlogError(_("unknown parent %s") % short(p)) |
1509
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
1153 |
192 | 1154 if not chain: |
1155 # retrieve the parent revision of the delta chain | |
1156 chain = p1 | |
1157 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
|
1158 raise RevlogError(_("unknown base %s") % short(chain[:4])) |
46 | 1159 |
1160 # full versions are inserted when the needed deltas become | |
1161 # comparable to the uncompressed text or when the previous | |
1162 # version is not the one we have a delta against. We use | |
1163 # the size of the previous full rev as a proxy for the | |
1164 # current size. | |
1165 | |
1166 if chain == prev: | |
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
1167 tempd = compress(delta) |
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
1168 cdelta = tempd[0] + tempd[1] |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1169 textlen = mdiff.patchedsize(textlen, delta) |
46 | 1170 |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1171 if chain != prev or (end - start + len(cdelta)) > textlen * 2: |
46 | 1172 # flush our writes here so we can read it in revision |
2072 | 1173 if dfh: |
1174 dfh.flush() | |
46 | 1175 ifh.flush() |
65
d40cc5aacc31
Fix up a bunch of bugs in the new merge code
mpm@selenic.com
parents:
64
diff
changeset
|
1176 text = self.revision(chain) |
73 | 1177 text = self.patches(text, [delta]) |
46 | 1178 chk = self.addrevision(text, transaction, link, p1, p2) |
1179 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
|
1180 raise RevlogError(_("consistency error adding group")) |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1181 textlen = len(text) |
46 | 1182 else: |
2142
8a1e2a9c7013
Replaced 0 with REVLOGV0 where this meaning is used.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
2141
diff
changeset
|
1183 if self.version == REVLOGV0: |
2072 | 1184 e = (end, len(cdelta), base, link, p1, p2, node) |
1185 else: | |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1186 e = (self.offset_type(end, 0), len(cdelta), textlen, base, |
2072 | 1187 link, self.rev(p1), self.rev(p2), node) |
46 | 1188 self.index.append(e) |
1189 self.nodemap[node] = r | |
2073 | 1190 if self.inlinedata(): |
1191 ifh.write(struct.pack(self.indexformat, *e)) | |
1192 ifh.write(cdelta) | |
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
1193 self.checkinlinesize(transaction, ifh) |
2073 | 1194 if not self.inlinedata(): |
1195 dfh = self.opener(self.datafile, "a") | |
1196 ifh = self.opener(self.indexfile, "a") | |
1197 else: | |
1198 if not dfh: | |
1199 # addrevision switched from inline to conventional | |
1200 # reopen the index | |
1201 dfh = self.opener(self.datafile, "a") | |
1202 ifh = self.opener(self.indexfile, "a") | |
1203 dfh.write(cdelta) | |
1204 ifh.write(struct.pack(self.indexformat, *e)) | |
46 | 1205 |
65
d40cc5aacc31
Fix up a bunch of bugs in the new merge code
mpm@selenic.com
parents:
64
diff
changeset
|
1206 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
|
1207 base = self.base(t) |
d457fec76ab0
fix warnings from pychecker (unused variables and shadowing)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1711
diff
changeset
|
1208 start = self.start(base) |
46 | 1209 end = self.end(t) |
1210 | |
1211 return node | |
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1212 |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1213 def strip(self, rev, minlink): |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1214 if self.count() == 0 or rev >= self.count(): |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1215 return |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1216 |
2072 | 1217 if isinstance(self.index, lazyindex): |
1218 self.loadindexmap() | |
1219 | |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1220 # 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
|
1221 # does not actually belong to an older changeset. |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1222 # The minlink parameter defines the oldest revision |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1223 # we're allowed to strip away. |
2072 | 1224 while minlink > self.index[rev][-4]: |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1225 rev += 1 |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1226 if rev >= self.count(): |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1227 return |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1228 |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1229 # first truncate the files on disk |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1230 end = self.start(rev) |
2073 | 1231 if not self.inlinedata(): |
1232 df = self.opener(self.datafile, "a") | |
1233 df.truncate(end) | |
1234 end = rev * struct.calcsize(self.indexformat) | |
1235 else: | |
1236 end += rev * struct.calcsize(self.indexformat) | |
2072 | 1237 |
1238 indexf = self.opener(self.indexfile, "a") | |
1239 indexf.truncate(end) | |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1240 |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1241 # 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
|
1242 self.cache = None |
1711 | 1243 self.chunkcache = None |
2072 | 1244 for x in xrange(rev, self.count()): |
1245 del self.nodemap[self.node(x)] | |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1246 |
2072 | 1247 del self.index[rev:] |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1248 |
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1249 def checksize(self): |
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1250 expected = 0 |
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1251 if self.count(): |
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1252 expected = self.end(self.count() - 1) |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1253 |
1494
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1254 try: |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1255 f = self.opener(self.datafile) |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1256 f.seek(0, 2) |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1257 actual = f.tell() |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1258 dd = actual - expected |
1494
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1259 except IOError, inst: |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1260 if inst.errno != errno.ENOENT: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1261 raise |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1262 dd = 0 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1263 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1264 try: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1265 f = self.opener(self.indexfile) |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1266 f.seek(0, 2) |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1267 actual = f.tell() |
2072 | 1268 s = struct.calcsize(self.indexformat) |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1269 i = actual / s |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1270 di = actual - (i * s) |
2073 | 1271 if self.inlinedata(): |
1272 databytes = 0 | |
1273 for r in xrange(self.count()): | |
1274 databytes += self.length(r) | |
1275 dd = 0 | |
1276 di = actual - self.count() * s - databytes | |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1277 except IOError, inst: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1278 if inst.errno != errno.ENOENT: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1279 raise |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1280 di = 0 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1281 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1282 return (dd, di) |
1494
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1283 |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1284 |