Mercurial > hg > mercurial-crew-with-dirclash
annotate mercurial/revlog.py @ 4359:2e3c54fb79a3
actually port simplemerge to hg
- use bdiff instead of patiencediff; this is a larger change, since
bdiff works on 2 multi-line strings, while patiencediff works on 2
lists;
- rename the main class from Merge3 to Merge3Text and add a Merge3
class that derives from Merge3Text. This new Merge3 class has
the same interface from the original class, so that the tests
still work;
- Merge3 uses util.binary to detect binary data and raises
util.Abort instead of a specific exception;
- don't use the @decorator syntax, to keep python2.3 compatibility;
- the test uses unittest, which likes to print how long it took to
run. This obviously doesn't play too well with hg's test suite,
so we override time.time to fool unittest;
- one test has a different (but still valid) output because of the
different diff algorithm used;
- the TestCase class used by bzr has some extras to help debugging.
test-merge3.py used 2 of them:
- log method to log some data
- assertEqualDiff method to ease viewing diffs of diffs
We add a dummy log method and use regular assertEquals instead of
assertEqualDiff.
- make simplemerge executable and add "#!/usr/bin/env python" header
author | Alexis S. L. Carvalho <alexis@cecm.usp.br> |
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date | Mon, 16 Apr 2007 20:17:39 -0300 |
parents | aa26759c6fb3 |
children | 22ebd6ee5672 |
rev | line source |
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1083 | 1 """ |
2 revlog.py - storage back-end for mercurial | |
3 | |
4 This provides efficient delta storage with O(1) retrieve and append | |
5 and O(changes) merge between branches | |
6 | |
2858 | 7 Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> |
1083 | 8 |
9 This software may be used and distributed according to the terms | |
10 of the GNU General Public License, incorporated herein by reference. | |
11 """ | |
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12 |
1089 | 13 from node import * |
3893 | 14 from i18n import _ |
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15 import binascii, changegroup, errno, ancestor, mdiff, os |
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16 import sha, struct, util, zlib |
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17 |
2072 | 18 # revlog version strings |
19 REVLOGV0 = 0 | |
20 REVLOGNG = 1 | |
21 | |
2073 | 22 # revlog flags |
23 REVLOGNGINLINEDATA = (1 << 16) | |
2222
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24 REVLOG_DEFAULT_FLAGS = REVLOGNGINLINEDATA |
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25 |
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26 REVLOG_DEFAULT_FORMAT = REVLOGNG |
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27 REVLOG_DEFAULT_VERSION = REVLOG_DEFAULT_FORMAT | REVLOG_DEFAULT_FLAGS |
2073 | 28 |
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29 def hash(text, p1, p2): |
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30 """generate a hash from the given text and its parent hashes |
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31 |
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32 This hash combines both the current file contents and its history |
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33 in a manner that makes it easy to distinguish nodes with the same |
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34 content in the revision graph. |
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35 """ |
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36 l = [p1, p2] |
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37 l.sort() |
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38 s = sha.new(l[0]) |
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39 s.update(l[1]) |
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40 s.update(text) |
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41 return s.digest() |
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42 |
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43 def compress(text): |
1083 | 44 """ generate a possibly-compressed representation of text """ |
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45 if not text: return ("", text) |
112 | 46 if len(text) < 44: |
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47 if text[0] == '\0': return ("", text) |
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48 return ('u', text) |
112 | 49 bin = zlib.compress(text) |
50 if len(bin) > len(text): | |
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51 if text[0] == '\0': return ("", text) |
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52 return ('u', text) |
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53 return ("", bin) |
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54 |
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55 def decompress(bin): |
1083 | 56 """ decompress the given input """ |
112 | 57 if not bin: return bin |
58 t = bin[0] | |
59 if t == '\0': return bin | |
60 if t == 'x': return zlib.decompress(bin) | |
61 if t == 'u': return bin[1:] | |
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62 raise RevlogError(_("unknown compression type %r") % t) |
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63 |
2072 | 64 indexformatv0 = ">4l20s20s20s" |
2079 | 65 v0shaoffset = 56 |
2072 | 66 # index ng: |
67 # 6 bytes offset | |
68 # 2 bytes flags | |
69 # 4 bytes compressed length | |
70 # 4 bytes uncompressed length | |
71 # 4 bytes: base rev | |
72 # 4 bytes link rev | |
73 # 4 bytes parent 1 rev | |
74 # 4 bytes parent 2 rev | |
75 # 32 bytes: nodeid | |
76 indexformatng = ">Qiiiiii20s12x" | |
2079 | 77 ngshaoffset = 32 |
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78 versionformat = ">I" |
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79 |
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80 class lazyparser(object): |
1083 | 81 """ |
82 this class avoids the need to parse the entirety of large indices | |
83 """ | |
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84 |
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85 # lazyparser is not safe to use on windows if win32 extensions not |
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86 # available. it keeps file handle open, which make it not possible |
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87 # to break hardlinks on local cloned repos. |
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88 safe_to_use = os.name != 'nt' or (not util.is_win_9x() and |
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89 hasattr(util, 'win32api')) |
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90 |
2079 | 91 def __init__(self, dataf, size, indexformat, shaoffset): |
92 self.dataf = dataf | |
93 self.format = indexformat | |
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94 self.s = struct.calcsize(indexformat) |
2072 | 95 self.indexformat = indexformat |
2079 | 96 self.datasize = size |
97 self.l = size/self.s | |
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98 self.index = [None] * self.l |
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99 self.map = {nullid: nullrev} |
2079 | 100 self.allmap = 0 |
323 | 101 self.all = 0 |
2079 | 102 self.mapfind_count = 0 |
103 self.shaoffset = shaoffset | |
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104 |
2079 | 105 def loadmap(self): |
106 """ | |
107 during a commit, we need to make sure the rev being added is | |
108 not a duplicate. This requires loading the entire index, | |
109 which is fairly slow. loadmap can load up just the node map, | |
110 which takes much less time. | |
111 """ | |
112 if self.allmap: return | |
113 end = self.datasize | |
114 self.allmap = 1 | |
115 cur = 0 | |
116 count = 0 | |
117 blocksize = self.s * 256 | |
118 self.dataf.seek(0) | |
119 while cur < end: | |
120 data = self.dataf.read(blocksize) | |
121 off = 0 | |
122 for x in xrange(256): | |
123 n = data[off + self.shaoffset:off + self.shaoffset + 20] | |
124 self.map[n] = count | |
125 count += 1 | |
126 if count >= self.l: | |
127 break | |
128 off += self.s | |
129 cur += blocksize | |
130 | |
131 def loadblock(self, blockstart, blocksize, data=None): | |
323 | 132 if self.all: return |
2079 | 133 if data is None: |
134 self.dataf.seek(blockstart) | |
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135 if blockstart + blocksize > self.datasize: |
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136 # the revlog may have grown since we've started running, |
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137 # but we don't have space in self.index for more entries. |
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138 # limit blocksize so that we don't get too much data. |
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139 blocksize = max(self.datasize - blockstart, 0) |
2079 | 140 data = self.dataf.read(blocksize) |
141 lend = len(data) / self.s | |
142 i = blockstart / self.s | |
143 off = 0 | |
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144 # lazyindex supports __delitem__ |
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145 if lend > len(self.index) - i: |
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146 lend = len(self.index) - i |
2079 | 147 for x in xrange(lend): |
148 if self.index[i + x] == None: | |
149 b = data[off : off + self.s] | |
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150 self.index[i + x] = b |
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151 n = b[self.shaoffset:self.shaoffset + 20] |
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152 self.map[n] = i + x |
2079 | 153 off += self.s |
154 | |
155 def findnode(self, node): | |
156 """search backwards through the index file for a specific node""" | |
157 if self.allmap: return None | |
158 | |
159 # hg log will cause many many searches for the manifest | |
160 # nodes. After we get called a few times, just load the whole | |
161 # thing. | |
162 if self.mapfind_count > 8: | |
163 self.loadmap() | |
164 if node in self.map: | |
165 return node | |
166 return None | |
167 self.mapfind_count += 1 | |
168 last = self.l - 1 | |
169 while self.index[last] != None: | |
170 if last == 0: | |
171 self.all = 1 | |
172 self.allmap = 1 | |
173 return None | |
174 last -= 1 | |
175 end = (last + 1) * self.s | |
176 blocksize = self.s * 256 | |
177 while end >= 0: | |
178 start = max(end - blocksize, 0) | |
179 self.dataf.seek(start) | |
180 data = self.dataf.read(end - start) | |
181 findend = end - start | |
182 while True: | |
183 # we're searching backwards, so weh have to make sure | |
184 # we don't find a changeset where this node is a parent | |
185 off = data.rfind(node, 0, findend) | |
186 findend = off | |
187 if off >= 0: | |
188 i = off / self.s | |
189 off = i * self.s | |
190 n = data[off + self.shaoffset:off + self.shaoffset + 20] | |
191 if n == node: | |
192 self.map[n] = i + start / self.s | |
193 return node | |
194 else: | |
195 break | |
196 end -= blocksize | |
197 return None | |
198 | |
199 def loadindex(self, i=None, end=None): | |
200 if self.all: return | |
201 all = False | |
202 if i == None: | |
203 blockstart = 0 | |
204 blocksize = (512 / self.s) * self.s | |
205 end = self.datasize | |
206 all = True | |
323 | 207 else: |
2079 | 208 if end: |
209 blockstart = i * self.s | |
210 end = end * self.s | |
211 blocksize = end - blockstart | |
212 else: | |
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213 blockstart = (i & ~63) * self.s |
2079 | 214 blocksize = self.s * 64 |
215 end = blockstart + blocksize | |
216 while blockstart < end: | |
217 self.loadblock(blockstart, blocksize) | |
218 blockstart += blocksize | |
219 if all: self.all = True | |
515 | 220 |
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221 class lazyindex(object): |
1083 | 222 """a lazy version of the index array""" |
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223 def __init__(self, parser): |
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224 self.p = parser |
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225 def __len__(self): |
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226 return len(self.p.index) |
115 | 227 def load(self, pos): |
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228 if pos < 0: |
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229 pos += len(self.p.index) |
2079 | 230 self.p.loadindex(pos) |
115 | 231 return self.p.index[pos] |
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232 def __getitem__(self, pos): |
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233 ret = self.p.index[pos] or self.load(pos) |
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234 if isinstance(ret, str): |
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235 ret = struct.unpack(self.p.indexformat, ret) |
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236 return ret |
2072 | 237 def __setitem__(self, pos, item): |
238 self.p.index[pos] = item | |
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239 def __delitem__(self, pos): |
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240 del self.p.index[pos] |
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241 def append(self, e): |
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242 self.p.index.append(e) |
515 | 243 |
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244 class lazymap(object): |
1083 | 245 """a lazy version of the node map""" |
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246 def __init__(self, parser): |
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247 self.p = parser |
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248 def load(self, key): |
2079 | 249 n = self.p.findnode(key) |
250 if n == None: | |
1214 | 251 raise KeyError(key) |
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252 def __contains__(self, key): |
2079 | 253 if key in self.p.map: |
254 return True | |
255 self.p.loadmap() | |
323 | 256 return key in self.p.map |
97 | 257 def __iter__(self): |
469 | 258 yield nullid |
97 | 259 for i in xrange(self.p.l): |
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260 ret = self.p.index[i] |
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261 if not ret: |
2079 | 262 self.p.loadindex(i) |
2080
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263 ret = self.p.index[i] |
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264 if isinstance(ret, str): |
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265 ret = struct.unpack(self.p.indexformat, ret) |
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266 yield ret[-1] |
76
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267 def __getitem__(self, key): |
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268 try: |
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269 return self.p.map[key] |
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270 except KeyError: |
86
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271 try: |
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272 self.load(key) |
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273 return self.p.map[key] |
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274 except KeyError: |
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275 raise KeyError("node " + hex(key)) |
76
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276 def __setitem__(self, key, val): |
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277 self.p.map[key] = val |
1535
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278 def __delitem__(self, key): |
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279 del self.p.map[key] |
76
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280 |
1073
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281 class RevlogError(Exception): pass |
3930
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282 class LookupError(RevlogError): pass |
1073
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283 |
1559
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284 class revlog(object): |
1083 | 285 """ |
286 the underlying revision storage object | |
287 | |
288 A revlog consists of two parts, an index and the revision data. | |
289 | |
290 The index is a file with a fixed record size containing | |
291 information on each revision, includings its nodeid (hash), the | |
292 nodeids of its parents, the position and offset of its data within | |
293 the data file, and the revision it's based on. Finally, each entry | |
294 contains a linkrev entry that can serve as a pointer to external | |
295 data. | |
296 | |
297 The revision data itself is a linear collection of data chunks. | |
298 Each chunk represents a revision and is usually represented as a | |
299 delta against the previous chunk. To bound lookup time, runs of | |
300 deltas are limited to about 2 times the length of the original | |
301 version data. This makes retrieval of a version proportional to | |
302 its size, or O(1) relative to the number of revisions. | |
303 | |
304 Both pieces of the revlog are written to in an append-only | |
305 fashion, which means we never need to rewrite a file to insert or | |
306 remove data, and can use some simple techniques to avoid the need | |
307 for locking while reading. | |
308 """ | |
4267
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309 def __init__(self, opener, indexfile): |
1083 | 310 """ |
311 create a revlog object | |
312 | |
313 opener is a function that abstracts the file opening operation | |
314 and can be used to implement COW semantics or the like. | |
315 """ | |
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316 self.indexfile = indexfile |
4266
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317 self.datafile = indexfile[:-2] + ".d" |
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318 self.opener = opener |
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319 |
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320 self.indexstat = None |
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321 self.cache = None |
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322 self.chunkcache = None |
4277
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323 self.defversion = REVLOG_DEFAULT_VERSION |
4267
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324 if hasattr(opener, "defversion"): |
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325 self.defversion = opener.defversion |
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326 if self.defversion & REVLOGNG: |
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327 self.defversion |= REVLOGNGINLINEDATA |
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328 self.load() |
116
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329 |
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330 def load(self): |
2072 | 331 v = self.defversion |
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332 try: |
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333 f = self.opener(self.indexfile) |
2079 | 334 i = f.read(4) |
335 f.seek(0) | |
1322
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336 except IOError, inst: |
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337 if inst.errno != errno.ENOENT: |
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338 raise |
76
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339 i = "" |
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340 else: |
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341 try: |
2176
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342 st = util.fstat(f) |
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343 except AttributeError, inst: |
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344 st = None |
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345 else: |
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346 oldst = self.indexstat |
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347 if (oldst and st.st_dev == oldst.st_dev |
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348 and st.st_ino == oldst.st_ino |
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349 and st.st_mtime == oldst.st_mtime |
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350 and st.st_ctime == oldst.st_ctime): |
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351 return |
2072 | 352 self.indexstat = st |
2138
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Fix revlog-ng interaction with old-http.
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353 if len(i) > 0: |
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354 v = struct.unpack(versionformat, i)[0] |
2073 | 355 flags = v & ~0xFFFF |
356 fmt = v & 0xFFFF | |
2142
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Replaced 0 with REVLOGV0 where this meaning is used.
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|
357 if fmt == REVLOGV0: |
2073 | 358 if flags: |
3754
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Improve error message for unknown revlog flags.
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359 raise RevlogError(_("index %s unknown flags %#04x for format v0") |
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|
360 % (self.indexfile, flags >> 16)) |
2073 | 361 elif fmt == REVLOGNG: |
362 if flags & ~REVLOGNGINLINEDATA: | |
3754
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363 raise RevlogError(_("index %s unknown flags %#04x for revlogng") |
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|
364 % (self.indexfile, flags >> 16)) |
2073 | 365 else: |
3744
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Make revlog error slightly less scary
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diff
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|
366 raise RevlogError(_("index %s unknown format %d") |
3680
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Indentation cleanups for 2956948b81f3.
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|
367 % (self.indexfile, fmt)) |
2072 | 368 self.version = v |
2142
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369 if v == REVLOGV0: |
2072 | 370 self.indexformat = indexformatv0 |
2079 | 371 shaoffset = v0shaoffset |
2072 | 372 else: |
373 self.indexformat = indexformatng | |
2079 | 374 shaoffset = ngshaoffset |
116
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diff
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375 |
2072 | 376 if i: |
2250
45aef5ddcdbe
windows: revlog.lazyparser not always safe to use.
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diff
changeset
|
377 if (lazyparser.safe_to_use and not self.inlinedata() and |
45aef5ddcdbe
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diff
changeset
|
378 st and st.st_size > 10000): |
2072 | 379 # big index, let's parse it on demand |
2079 | 380 parser = lazyparser(f, st.st_size, self.indexformat, shaoffset) |
2072 | 381 self.index = lazyindex(parser) |
382 self.nodemap = lazymap(parser) | |
383 else: | |
2255
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|
384 self.parseindex(f, st) |
2142
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|
385 if self.version != REVLOGV0: |
2072 | 386 e = list(self.index[0]) |
387 type = self.ngtype(e[0]) | |
388 e[0] = self.offset_type(0, type) | |
389 self.index[0] = e | |
116
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diff
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|
390 else: |
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
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|
391 self.nodemap = {nullid: nullrev} |
2072 | 392 self.index = [] |
393 | |
394 | |
2255
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395 def parseindex(self, fp, st): |
2072 | 396 s = struct.calcsize(self.indexformat) |
397 self.index = [] | |
3578
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398 self.nodemap = {nullid: nullrev} |
2073 | 399 inline = self.inlinedata() |
2072 | 400 n = 0 |
2255
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401 leftover = None |
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402 while True: |
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|
403 if st: |
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404 data = fp.read(65536) |
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405 else: |
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|
406 # hack for httprangereader, it doesn't do partial reads well |
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407 data = fp.read() |
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408 if not data: |
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|
409 break |
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410 if n == 0 and self.inlinedata(): |
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|
411 # cache the first chunk |
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changeset
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412 self.chunkcache = (0, data) |
2289
854954fd410a
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|
413 if leftover: |
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|
414 data = leftover + data |
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|
415 leftover = None |
2255
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|
416 off = 0 |
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417 l = len(data) |
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418 while off < l: |
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419 if l - off < s: |
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420 leftover = data[off:] |
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421 break |
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changeset
|
422 cur = data[off:off + s] |
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changeset
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423 off += s |
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424 e = struct.unpack(self.indexformat, cur) |
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425 self.index.append(e) |
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426 self.nodemap[e[-1]] = n |
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|
427 n += 1 |
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|
428 if inline: |
4222
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diff
changeset
|
429 if e[1] < 0: |
90bb1ab53a85
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changeset
|
430 break |
2255
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|
431 off += e[1] |
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432 if off > l: |
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433 # some things don't seek well, just read it |
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|
434 fp.read(off - l) |
4222
90bb1ab53a85
revlog: attempt to gracefully handle some interleaved damage
Matt Mackall <mpm@selenic.com>
parents:
3925
diff
changeset
|
435 break |
2255
3f38e872f39a
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mason@suse.com
parents:
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diff
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|
436 if not st: |
3f38e872f39a
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parents:
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diff
changeset
|
437 break |
2600
c4325f0a9b91
clean up trailing white space.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2561
diff
changeset
|
438 |
116
e484cd5ec282
Only use lazy indexing for big indices and avoid the overhead of the
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parents:
115
diff
changeset
|
439 |
2072 | 440 def ngoffset(self, q): |
441 if q & 0xFFFF: | |
442 raise RevlogError(_('%s: incompatible revision flag %x') % | |
2141
ed631e83fa06
Corrected error message for incompatible revision flags.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
2138
diff
changeset
|
443 (self.indexfile, q)) |
2072 | 444 return long(q >> 16) |
445 | |
446 def ngtype(self, q): | |
447 return int(q & 0xFFFF) | |
116
e484cd5ec282
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parents:
115
diff
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|
448 |
2072 | 449 def offset_type(self, offset, type): |
450 return long(long(offset) << 16 | type) | |
451 | |
2079 | 452 def loadindex(self, start, end): |
453 """load a block of indexes all at once from the lazy parser""" | |
454 if isinstance(self.index, lazyindex): | |
455 self.index.p.loadindex(start, end) | |
456 | |
2072 | 457 def loadindexmap(self): |
458 """loads both the map and the index from the lazy parser""" | |
459 if isinstance(self.index, lazyindex): | |
460 p = self.index.p | |
2079 | 461 p.loadindex() |
462 self.nodemap = p.map | |
463 | |
464 def loadmap(self): | |
465 """loads the map from the lazy parser""" | |
466 if isinstance(self.nodemap, lazymap): | |
467 self.nodemap.p.loadmap() | |
468 self.nodemap = self.nodemap.p.map | |
0
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469 |
2073 | 470 def inlinedata(self): return self.version & REVLOGNGINLINEDATA |
0
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471 def tip(self): return self.node(len(self.index) - 1) |
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472 def count(self): return len(self.index) |
2072 | 473 def node(self, rev): |
3585
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|
474 return rev == nullrev and nullid or self.index[rev][-1] |
1201
59bfbdbc38f6
revlog: raise informative exception if file is missing.
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parents:
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diff
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|
475 def rev(self, node): |
59bfbdbc38f6
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parents:
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|
476 try: |
59bfbdbc38f6
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|
477 return self.nodemap[node] |
59bfbdbc38f6
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parents:
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|
478 except KeyError: |
3930
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parents:
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changeset
|
479 raise LookupError(_('%s: no node %s') % (self.indexfile, hex(node))) |
2651
6414ee2eb688
correct the handling of linkrev with nullid
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parents:
2650
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changeset
|
480 def linkrev(self, node): |
3578
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|
481 return (node == nullid) and nullrev or self.index[self.rev(node)][-4] |
2 | 482 def parents(self, node): |
483 if node == nullid: return (nullid, nullid) | |
2072 | 484 r = self.rev(node) |
485 d = self.index[r][-3:-1] | |
2142
8a1e2a9c7013
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|
486 if self.version == REVLOGV0: |
2072 | 487 return d |
3505
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parents:
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diff
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|
488 return (self.node(d[0]), self.node(d[1])) |
2489
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parents:
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|
489 def parentrevs(self, rev): |
3578
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|
490 if rev == nullrev: |
3b4e00cba57a
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491 return (nullrev, nullrev) |
2489
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492 d = self.index[rev][-3:-1] |
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493 if self.version == REVLOGV0: |
3505
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494 return (self.rev(d[0]), self.rev(d[1])) |
2489
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parents:
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495 return d |
2072 | 496 def start(self, rev): |
3585
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parents:
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497 if rev == nullrev: |
3584
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parents:
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498 return 0 |
2142
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parents:
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diff
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|
499 if self.version != REVLOGV0: |
2072 | 500 return self.ngoffset(self.index[rev][0]) |
501 return self.index[rev][0] | |
2078
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502 |
2072 | 503 def end(self, rev): return self.start(rev) + self.length(rev) |
0
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504 |
2078
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505 def size(self, rev): |
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506 """return the length of the uncompressed text for a given revision""" |
3582
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507 if rev == nullrev: |
9fb7d3a05882
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508 return 0 |
2078
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parents:
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|
509 l = -1 |
2142
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parents:
2141
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|
510 if self.version != REVLOGV0: |
2078
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511 l = self.index[rev][2] |
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512 if l >= 0: |
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|
513 return l |
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diff
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|
514 |
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|
515 t = self.revision(self.node(rev)) |
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516 return len(t) |
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517 |
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518 # alternate implementation, The advantage to this code is it |
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519 # will be faster for a single revision. But, the results are not |
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520 # cached, so finding the size of every revision will be slower. |
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521 """ |
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522 if self.cache and self.cache[1] == rev: |
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523 return len(self.cache[2]) |
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diff
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524 |
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525 base = self.base(rev) |
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526 if self.cache and self.cache[1] >= base and self.cache[1] < rev: |
441ea218414e
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527 base = self.cache[1] |
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diff
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|
528 text = self.cache[2] |
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|
529 else: |
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530 text = self.revision(self.node(base)) |
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531 |
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532 l = len(text) |
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533 for x in xrange(base + 1, rev + 1): |
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534 l = mdiff.patchedsize(l, self.chunk(x)) |
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535 return l |
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diff
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|
536 """ |
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diff
changeset
|
537 |
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
538 def length(self, rev): |
3585
cac2c17bec5a
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parents:
3584
diff
changeset
|
539 if rev == nullrev: |
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
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|
540 return 0 |
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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diff
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|
541 else: |
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
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parents:
1853
diff
changeset
|
542 return self.index[rev][1] |
3585
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parents:
3584
diff
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|
543 def base(self, rev): |
cac2c17bec5a
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diff
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|
544 if (rev == nullrev): |
cac2c17bec5a
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diff
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|
545 return nullrev |
cac2c17bec5a
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diff
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|
546 else: |
cac2c17bec5a
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diff
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|
547 return self.index[rev][-5] |
0
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parents:
diff
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|
548 |
3633
508036290b00
revlog: reachable actually takes a node
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parents:
3585
diff
changeset
|
549 def reachable(self, node, stop=None): |
3683 | 550 """return a hash of all nodes ancestral to a given node, including |
551 the node itself, stopping when stop is matched""" | |
1074
55bf5cfde69e
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parents:
1073
diff
changeset
|
552 reachable = {} |
3633
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parents:
3585
diff
changeset
|
553 visit = [node] |
508036290b00
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parents:
3585
diff
changeset
|
554 reachable[node] = 1 |
1074
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Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents:
1073
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555 if stop: |
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parents:
1073
diff
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556 stopn = self.rev(stop) |
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557 else: |
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558 stopn = 0 |
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559 while visit: |
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parents:
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560 n = visit.pop(0) |
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561 if n == stop: |
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562 continue |
55bf5cfde69e
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563 if n == nullid: |
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564 continue |
55bf5cfde69e
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|
565 for p in self.parents(n): |
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parents:
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diff
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|
566 if self.rev(p) < stopn: |
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parents:
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diff
changeset
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567 continue |
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parents:
1073
diff
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|
568 if p not in reachable: |
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diff
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569 reachable[p] = 1 |
55bf5cfde69e
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mason@suse.com
parents:
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570 visit.append(p) |
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mason@suse.com
parents:
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571 return reachable |
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mason@suse.com
parents:
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|
572 |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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|
573 def nodesbetween(self, roots=None, heads=None): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
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diff
changeset
|
574 """Return a tuple containing three elements. Elements 1 and 2 contain |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
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575 a final list bases and heads after all the unreachable ones have been |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
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576 pruned. Element 0 contains a topologically sorted list of all |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
577 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
578 nodes that satisfy these constraints: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
579 1. All nodes must be descended from a node in roots (the nodes on |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
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580 roots are considered descended from themselves). |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
parents:
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581 2. All nodes must also be ancestors of a node in heads (the nodes in |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
582 heads are considered to be their own ancestors). |
518da3c3b6ce
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parents:
1351
diff
changeset
|
583 |
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584 If roots is unspecified, nullid is assumed as the only root. |
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585 If heads is unspecified, it is taken to be the output of the |
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586 heads method (i.e. a list of all nodes in the repository that |
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587 have no children).""" |
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588 nonodes = ([], [], []) |
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589 if roots is not None: |
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590 roots = list(roots) |
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591 if not roots: |
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592 return nonodes |
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593 lowestrev = min([self.rev(n) for n in roots]) |
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594 else: |
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595 roots = [nullid] # Everybody's a descendent of nullid |
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596 lowestrev = nullrev |
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597 if (lowestrev == nullrev) and (heads is None): |
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598 # We want _all_ the nodes! |
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599 return ([self.node(r) for r in xrange(0, self.count())], |
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600 [nullid], list(self.heads())) |
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601 if heads is None: |
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602 # All nodes are ancestors, so the latest ancestor is the last |
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603 # node. |
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604 highestrev = self.count() - 1 |
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605 # Set ancestors to None to signal that every node is an ancestor. |
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606 ancestors = None |
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607 # Set heads to an empty dictionary for later discovery of heads |
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608 heads = {} |
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609 else: |
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610 heads = list(heads) |
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611 if not heads: |
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612 return nonodes |
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613 ancestors = {} |
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614 # Turn heads into a dictionary so we can remove 'fake' heads. |
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615 # Also, later we will be using it to filter out the heads we can't |
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616 # find from roots. |
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617 heads = dict.fromkeys(heads, 0) |
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
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618 # Start at the top and keep marking parents until we're done. |
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619 nodestotag = heads.keys() |
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620 # Remember where the top was so we can use it as a limit later. |
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621 highestrev = max([self.rev(n) for n in nodestotag]) |
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622 while nodestotag: |
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623 # grab a node to tag |
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624 n = nodestotag.pop() |
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625 # Never tag nullid |
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626 if n == nullid: |
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627 continue |
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628 # A node's revision number represents its place in a |
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629 # topologically sorted list of nodes. |
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630 r = self.rev(n) |
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631 if r >= lowestrev: |
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632 if n not in ancestors: |
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633 # If we are possibly a descendent of one of the roots |
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634 # and we haven't already been marked as an ancestor |
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635 ancestors[n] = 1 # Mark as ancestor |
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636 # Add non-nullid parents to list of nodes to tag. |
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637 nodestotag.extend([p for p in self.parents(n) if |
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638 p != nullid]) |
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639 elif n in heads: # We've seen it before, is it a fake head? |
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640 # So it is, real heads should not be the ancestors of |
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641 # any other heads. |
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642 heads.pop(n) |
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643 if not ancestors: |
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644 return nonodes |
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645 # Now that we have our set of ancestors, we want to remove any |
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646 # roots that are not ancestors. |
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647 |
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648 # If one of the roots was nullid, everything is included anyway. |
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Define and use nullrev (revision of nullid) instead of -1.
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649 if lowestrev > nullrev: |
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650 # But, since we weren't, let's recompute the lowest rev to not |
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651 # include roots that aren't ancestors. |
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652 |
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653 # Filter out roots that aren't ancestors of heads |
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654 roots = [n for n in roots if n in ancestors] |
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655 # Recompute the lowest revision |
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656 if roots: |
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657 lowestrev = min([self.rev(n) for n in roots]) |
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658 else: |
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659 # No more roots? Return empty list |
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660 return nonodes |
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661 else: |
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662 # We are descending from nullid, and don't need to care about |
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663 # any other roots. |
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664 lowestrev = nullrev |
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665 roots = [nullid] |
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666 # Transform our roots list into a 'set' (i.e. a dictionary where the |
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667 # values don't matter. |
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668 descendents = dict.fromkeys(roots, 1) |
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669 # Also, keep the original roots so we can filter out roots that aren't |
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670 # 'real' roots (i.e. are descended from other roots). |
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671 roots = descendents.copy() |
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672 # Our topologically sorted list of output nodes. |
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673 orderedout = [] |
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674 # Don't start at nullid since we don't want nullid in our output list, |
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675 # and if nullid shows up in descedents, empty parents will look like |
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676 # they're descendents. |
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677 for r in xrange(max(lowestrev, 0), highestrev + 1): |
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678 n = self.node(r) |
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679 isdescendent = False |
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680 if lowestrev == nullrev: # Everybody is a descendent of nullid |
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681 isdescendent = True |
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682 elif n in descendents: |
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683 # n is already a descendent |
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684 isdescendent = True |
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685 # This check only needs to be done here because all the roots |
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686 # will start being marked is descendents before the loop. |
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687 if n in roots: |
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|
688 # If n was a root, check if it's a 'real' root. |
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689 p = tuple(self.parents(n)) |
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690 # If any of its parents are descendents, it's not a root. |
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691 if (p[0] in descendents) or (p[1] in descendents): |
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692 roots.pop(n) |
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693 else: |
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694 p = tuple(self.parents(n)) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
695 # A node is a descendent if either of its parents are |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
696 # descendents. (We seeded the dependents list with the roots |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
697 # up there, remember?) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
698 if (p[0] in descendents) or (p[1] in descendents): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
699 descendents[n] = 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
700 isdescendent = True |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
701 if isdescendent and ((ancestors is None) or (n in ancestors)): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
702 # Only include nodes that are both descendents and ancestors. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
703 orderedout.append(n) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
704 if (ancestors is not None) and (n in heads): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
705 # We're trying to figure out which heads are reachable |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
706 # from roots. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
707 # Mark this head as having been reached |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
708 heads[n] = 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
709 elif ancestors is None: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
710 # Otherwise, we're trying to discover the heads. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
711 # Assume this is a head because if it isn't, the next step |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
712 # will eventually remove it. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
713 heads[n] = 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
714 # But, obviously its parents aren't. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
715 for p in self.parents(n): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
716 heads.pop(p, None) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
717 heads = [n for n in heads.iterkeys() if heads[n] != 0] |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
718 roots = roots.keys() |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
719 assert orderedout |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
720 assert roots |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
721 assert heads |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
722 return (orderedout, roots, heads) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
723 |
3925
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
724 def heads(self, start=None, stop=None): |
1550
ccb9b62de892
add a -r/--rev option to heads to show only heads descendant from rev
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1535
diff
changeset
|
725 """return the list of all nodes that have no children |
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
726 |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
727 if start is specified, only heads that are descendants of |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
728 start will be returned |
3925
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
729 if stop is specified, it will consider all the revs from stop |
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
730 as if they had no children |
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
731 """ |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
732 if start is None: |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
733 start = nullid |
3925
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
734 if stop is None: |
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
735 stop = [] |
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
736 stoprevs = dict.fromkeys([self.rev(n) for n in stop]) |
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
|
737 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
|
738 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
|
739 heads = {startrev: 1} |
1083 | 740 |
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
|
741 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
|
742 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
|
743 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
|
744 if p in reachable: |
3925
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
745 if r not in stoprevs: |
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
746 reachable[r] = 1 |
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
|
747 heads[r] = 1 |
3925
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
748 if p in heads and p not in stoprevs: |
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
|
749 del heads[p] |
3925
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
750 |
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
|
751 return [self.node(r) for r in heads] |
370 | 752 |
753 def children(self, node): | |
1083 | 754 """find the children of a given node""" |
370 | 755 c = [] |
756 p = self.rev(node) | |
757 for r in range(p + 1, self.count()): | |
3469
fd8f1110562c
fix errors spotted by pychecker
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3465
diff
changeset
|
758 for pr in self.parentrevs(r): |
3465
c6773b7ebee8
revlog.children: use parentrevs instead of parents
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3438
diff
changeset
|
759 if pr == p: |
c6773b7ebee8
revlog.children: use parentrevs instead of parents
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3438
diff
changeset
|
760 c.append(self.node(r)) |
370 | 761 return c |
515 | 762 |
3494
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
763 def _match(self, id): |
3210
7240f9e47144
correctly find the type of 'id' in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3153
diff
changeset
|
764 if isinstance(id, (long, int)): |
3152
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
765 # rev |
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
|
766 return self.node(id) |
3438 | 767 if len(id) == 20: |
768 # possibly a binary node | |
769 # odds of a binary node being all hex in ASCII are 1 in 10**25 | |
770 try: | |
771 node = id | |
772 r = self.rev(node) # quick search the index | |
773 return node | |
3930
01d98d68d697
Add revlog.LookupError exception, and use it instead of RevlogError.
Brendan Cully <brendan@kublai.com>
parents:
3928
diff
changeset
|
774 except LookupError: |
3438 | 775 pass # may be partial hex id |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
776 try: |
3152
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
777 # str(rev) |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
778 rev = int(id) |
469 | 779 if str(rev) != id: raise ValueError |
780 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
|
781 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
|
782 return self.node(rev) |
469 | 783 except (ValueError, OverflowError): |
3152
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
784 pass |
3494
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
785 if len(id) == 40: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
786 try: |
3438 | 787 # a full hex nodeid? |
788 node = bin(id) | |
789 r = self.rev(node) | |
3153
4fe41a9e4591
optimize revlog.lookup when passed hex(node)[:...]
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3152
diff
changeset
|
790 return node |
3494
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
791 except TypeError: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
792 pass |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
793 |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
794 def _partialmatch(self, id): |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
795 if len(id) < 40: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
796 try: |
3438 | 797 # hex(node)[:...] |
798 bin_id = bin(id[:len(id) & ~1]) # grab an even number of digits | |
799 node = None | |
800 for n in self.nodemap: | |
801 if n.startswith(bin_id) and hex(n).startswith(id): | |
802 if node is not None: | |
3930
01d98d68d697
Add revlog.LookupError exception, and use it instead of RevlogError.
Brendan Cully <brendan@kublai.com>
parents:
3928
diff
changeset
|
803 raise LookupError(_("Ambiguous identifier")) |
3438 | 804 node = n |
805 if node is not None: | |
806 return node | |
3494
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
807 except TypeError: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
808 pass |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
809 |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
810 def lookup(self, id): |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
811 """locate a node based on: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
812 - revision number or str(revision number) |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
813 - nodeid or subset of hex nodeid |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
814 """ |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
815 |
dba3cadef789
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Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
816 n = self._match(id) |
dba3cadef789
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Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
817 if n is not None: |
dba3cadef789
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Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
818 return n |
dba3cadef789
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Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
819 n = self._partialmatch(id) |
dba3cadef789
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parents:
3438
diff
changeset
|
820 if n: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
821 return n |
515 | 822 |
3930
01d98d68d697
Add revlog.LookupError exception, and use it instead of RevlogError.
Brendan Cully <brendan@kublai.com>
parents:
3928
diff
changeset
|
823 raise LookupError(_("No match found")) |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
824 |
2910
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
825 def cmp(self, node, text): |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
826 """compare text with a given file revision""" |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
827 p1, p2 = self.parents(node) |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
828 return hash(text, p1, p2) != node |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
829 |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
830 def makenode(self, node, text): |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
831 """calculate a file nodeid for text, descended or possibly |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
832 unchanged from node""" |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
833 |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
834 if self.cmp(node, text): |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
835 return hash(text, node, nullid) |
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Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
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|
836 return node |
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Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
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diff
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|
837 |
0
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mpm@selenic.com
parents:
diff
changeset
|
838 def diff(self, a, b): |
1083 | 839 """return a delta between two revisions""" |
0
9117c6561b0b
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parents:
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changeset
|
840 return mdiff.textdiff(a, b) |
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mpm@selenic.com
parents:
diff
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|
841 |
73 | 842 def patches(self, t, pl): |
1083 | 843 """apply a list of patches to a string""" |
73 | 844 return mdiff.patches(t, pl) |
845 | |
2072 | 846 def chunk(self, rev, df=None, cachelen=4096): |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
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parents:
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diff
changeset
|
847 start, length = self.start(rev), self.length(rev) |
2073 | 848 inline = self.inlinedata() |
849 if inline: | |
850 start += (rev + 1) * struct.calcsize(self.indexformat) | |
1598
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parents:
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diff
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|
851 end = start + length |
2072 | 852 def loadcache(df): |
853 cache_length = max(cachelen, length) # 4k | |
854 if not df: | |
2073 | 855 if inline: |
856 df = self.opener(self.indexfile) | |
857 else: | |
858 df = self.opener(self.datafile) | |
1598
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parents:
1559
diff
changeset
|
859 df.seek(start) |
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parents:
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|
860 self.chunkcache = (start, df.read(cache_length)) |
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parents:
1559
diff
changeset
|
861 |
14d1f1868bf6
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parents:
1559
diff
changeset
|
862 if not self.chunkcache: |
2072 | 863 loadcache(df) |
1598
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cleanup of revlog.group when repository is local
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diff
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|
864 |
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cleanup of revlog.group when repository is local
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parents:
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diff
changeset
|
865 cache_start = self.chunkcache[0] |
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parents:
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diff
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|
866 cache_end = cache_start + len(self.chunkcache[1]) |
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|
867 if start >= cache_start and end <= cache_end: |
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parents:
1559
diff
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|
868 # it is cached |
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parents:
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diff
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|
869 offset = start - cache_start |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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diff
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|
870 else: |
2072 | 871 loadcache(df) |
1598
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parents:
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diff
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|
872 offset = 0 |
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|
873 |
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|
874 #def checkchunk(): |
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|
875 # df = self.opener(self.datafile) |
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876 # df.seek(start) |
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|
877 # return df.read(length) |
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878 #assert s == checkchunk() |
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879 return decompress(self.chunkcache[1][offset:offset + length]) |
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880 |
119
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881 def delta(self, node): |
1083 | 882 """return or calculate a delta between a node and its predecessor""" |
119
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changeset
|
883 r = self.rev(node) |
1941
7518823709a2
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884 return self.revdiff(r - 1, r) |
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changeset
|
885 |
7518823709a2
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|
886 def revdiff(self, rev1, rev2): |
7518823709a2
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|
887 """return or calculate a delta between two revisions""" |
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|
888 b1 = self.base(rev1) |
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changeset
|
889 b2 = self.base(rev2) |
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|
890 if b1 == b2 and rev1 + 1 == rev2: |
7518823709a2
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|
891 return self.chunk(rev2) |
119
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diff
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|
892 else: |
1941
7518823709a2
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|
893 return self.diff(self.revision(self.node(rev1)), |
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|
894 self.revision(self.node(rev2))) |
119
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diff
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|
895 |
0
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|
896 def revision(self, node): |
1083 | 897 """return an uncompressed revision of a given""" |
36
da28286bf6b7
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diff
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|
898 if node == nullid: return "" |
0
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899 if self.cache and self.cache[0] == node: return self.cache[2] |
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|
900 |
1083 | 901 # look up what we need to read |
0
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|
902 text = None |
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903 rev = self.rev(node) |
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904 base = self.base(rev) |
0
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|
905 |
2073 | 906 if self.inlinedata(): |
907 # we probably have the whole chunk cached | |
908 df = None | |
909 else: | |
910 df = self.opener(self.datafile) | |
2072 | 911 |
1083 | 912 # do we have useful data cached? |
0
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913 if self.cache and self.cache[1] >= base and self.cache[1] < rev: |
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914 base = self.cache[1] |
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|
915 text = self.cache[2] |
2079 | 916 self.loadindex(base, rev + 1) |
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|
917 else: |
2079 | 918 self.loadindex(base, rev + 1) |
2072 | 919 text = self.chunk(base, df=df) |
0
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|
920 |
71
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diff
changeset
|
921 bins = [] |
64 | 922 for r in xrange(base + 1, rev + 1): |
2072 | 923 bins.append(self.chunk(r, df=df)) |
0
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|
924 |
1941
7518823709a2
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|
925 text = self.patches(text, bins) |
71
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Add mdiff.patches to speed up applying thousands of patches to the manifest
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diff
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|
926 |
1598
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parents:
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|
927 p1, p2 = self.parents(node) |
26 | 928 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
|
929 raise RevlogError(_("integrity check failed on %s:%d") |
3680
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
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|
930 % (self.datafile, rev)) |
0
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|
931 |
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|
932 self.cache = (node, rev, text) |
515 | 933 return text |
0
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|
934 |
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
935 def checkinlinesize(self, tr, fp=None): |
2073 | 936 if not self.inlinedata(): |
937 return | |
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
938 if not fp: |
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
939 fp = self.opener(self.indexfile, 'r') |
2082
856f0ba200bc
Additional appendfile fixes for interleaved data/index files
mason@suse.com
parents:
2081
diff
changeset
|
940 fp.seek(0, 2) |
2073 | 941 size = fp.tell() |
942 if size < 131072: | |
943 return | |
2084 | 944 trinfo = tr.find(self.indexfile) |
945 if trinfo == None: | |
3680
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
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|
946 raise RevlogError(_("%s not found in the transaction") |
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
947 % self.indexfile) |
2084 | 948 |
949 trindex = trinfo[2] | |
950 dataoff = self.start(trindex) | |
951 | |
952 tr.add(self.datafile, dataoff) | |
2073 | 953 df = self.opener(self.datafile, 'w') |
954 calc = struct.calcsize(self.indexformat) | |
955 for r in xrange(self.count()): | |
956 start = self.start(r) + (r + 1) * calc | |
957 length = self.length(r) | |
958 fp.seek(start) | |
959 d = fp.read(length) | |
960 df.write(d) | |
961 fp.close() | |
962 df.close() | |
2076
d007df6daf8e
Create an atomic opener that does not automatically rename on close
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2075
diff
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|
963 fp = self.opener(self.indexfile, 'w', atomictemp=True) |
2073 | 964 self.version &= ~(REVLOGNGINLINEDATA) |
965 if self.count(): | |
966 x = self.index[0] | |
967 e = struct.pack(self.indexformat, *x)[4:] | |
968 l = struct.pack(versionformat, self.version) | |
969 fp.write(l) | |
970 fp.write(e) | |
971 | |
972 for i in xrange(1, self.count()): | |
973 x = self.index[i] | |
974 e = struct.pack(self.indexformat, *x) | |
975 fp.write(e) | |
976 | |
2076
d007df6daf8e
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diff
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|
977 # if we don't call rename, the temp file will never replace the |
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diff
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|
978 # real index |
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2075
diff
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|
979 fp.rename() |
2084 | 980 |
981 tr.replace(self.indexfile, trindex * calc) | |
2073 | 982 self.chunkcache = None |
983 | |
644 | 984 def addrevision(self, text, transaction, link, p1=None, p2=None, d=None): |
1083 | 985 """add a revision to the log |
986 | |
987 text - the revision data to add | |
988 transaction - the transaction object used for rollback | |
989 link - the linkrev data to add | |
990 p1, p2 - the parent nodeids of the revision | |
991 d - an optional precomputed delta | |
992 """ | |
3390
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|
993 if not self.inlinedata(): |
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|
994 dfh = self.opener(self.datafile, "a") |
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|
995 else: |
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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996 dfh = None |
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997 ifh = self.opener(self.indexfile, "a+") |
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changeset
|
998 return self._addrevision(text, transaction, link, p1, p2, d, ifh, dfh) |
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|
999 |
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|
1000 def _addrevision(self, text, transaction, link, p1, p2, d, ifh, dfh): |
0
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1001 if text is None: text = "" |
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|
1002 if p1 is None: p1 = self.tip() |
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|
1003 if p2 is None: p2 = nullid |
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|
1004 |
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|
1005 node = hash(text, p1, p2) |
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|
1006 |
301 | 1007 if node in self.nodemap: |
1008 return node | |
1009 | |
0
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1010 n = self.count() |
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1011 t = n - 1 |
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1012 |
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|
1013 if n: |
64 | 1014 base = self.base(t) |
1015 start = self.start(base) | |
0
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1016 end = self.end(t) |
644 | 1017 if not d: |
1018 prev = self.revision(self.tip()) | |
3333
9061613c1593
Teach bdiff to support buffer objects
Brendan Cully <brendan@kublai.com>
parents:
3210
diff
changeset
|
1019 d = self.diff(prev, text) |
98 | 1020 data = compress(d) |
1533
3d11f81c9145
Reduce string duplication in compression code
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1509
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1021 l = len(data[1]) + len(data[0]) |
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1022 dist = end - start + l |
0
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1023 |
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1024 # full versions are inserted when the needed deltas |
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1025 # become comparable to the uncompressed text |
64 | 1026 if not n or dist > len(text) * 2: |
0
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|
1027 data = compress(text) |
1533
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1028 l = len(data[1]) + len(data[0]) |
0
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1029 base = n |
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1030 else: |
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1031 base = self.base(t) |
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1032 |
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1033 offset = 0 |
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1034 if t >= 0: |
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1035 offset = self.end(t) |
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1036 |
2142
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Thomas Arendsen Hein <thomas@intevation.de>
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|
1037 if self.version == REVLOGV0: |
2072 | 1038 e = (offset, l, base, link, p1, p2, node) |
1039 else: | |
1040 e = (self.offset_type(offset, 0), l, len(text), | |
1041 base, link, self.rev(p1), self.rev(p2), node) | |
515 | 1042 |
0
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1043 self.index.append(e) |
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1044 self.nodemap[node] = n |
2072 | 1045 entry = struct.pack(self.indexformat, *e) |
0
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|
1046 |
2073 | 1047 if not self.inlinedata(): |
1048 transaction.add(self.datafile, offset) | |
1049 transaction.add(self.indexfile, n * len(entry)) | |
1050 if data[0]: | |
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make revlog.addgroup pass its file handles to addrevision
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1051 dfh.write(data[0]) |
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1052 dfh.write(data[1]) |
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1053 dfh.flush() |
2073 | 1054 else: |
3390
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1055 ifh.seek(0, 2) |
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1056 transaction.add(self.indexfile, ifh.tell(), self.count() - 1) |
2072 | 1057 |
2142
8a1e2a9c7013
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parents:
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1058 if len(self.index) == 1 and self.version != REVLOGV0: |
2072 | 1059 l = struct.pack(versionformat, self.version) |
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1060 ifh.write(l) |
2072 | 1061 entry = entry[4:] |
1062 | |
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1063 ifh.write(entry) |
0
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1064 |
2073 | 1065 if self.inlinedata(): |
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1066 ifh.write(data[0]) |
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1067 ifh.write(data[1]) |
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1068 self.checkinlinesize(transaction, ifh) |
2073 | 1069 |
0
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1070 self.cache = (node, n, text) |
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1071 return node |
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1072 |
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1073 def ancestor(self, a, b): |
1083 | 1074 """calculate the least common ancestor of nodes a and b""" |
2081
416d8b2a75b8
Speedup revlog.ancestors for the linear case
Chris Mason <mason@suse.com>
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1075 |
3139
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|
1076 def parents(rev): |
3578
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|
1077 return [p for p in self.parentrevs(rev) if p != nullrev] |
515 | 1078 |
3139
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1079 c = ancestor.ancestor(self.rev(a), self.rev(b), parents) |
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1080 if c is None: |
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1081 return nullid |
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1082 |
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1083 return self.node(c) |
0
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1084 |
1598
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1085 def group(self, nodelist, lookup, infocollect=None): |
1083 | 1086 """calculate a delta group |
46 | 1087 |
1083 | 1088 Given a list of changeset revs, return a set of deltas and |
1089 metadata corresponding to nodes. the first delta is | |
1090 parent(nodes[0]) -> nodes[0] the receiver is guaranteed to | |
1091 have this parent as it has all history before these | |
1092 changesets. parent is parent[0] | |
1093 """ | |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
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|
1094 revs = [self.rev(n) for n in nodelist] |
46 | 1095 |
1096 # if we don't have any revisions touched by these changesets, bail | |
192 | 1097 if not revs: |
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|
1098 yield changegroup.closechunk() |
192 | 1099 return |
46 | 1100 |
1101 # add the parent of the first rev | |
1102 p = self.parents(self.node(revs[0]))[0] | |
1103 revs.insert(0, self.rev(p)) | |
1104 | |
1105 # build deltas | |
71
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Add mdiff.patches to speed up applying thousands of patches to the manifest
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1106 for d in xrange(0, len(revs) - 1): |
46 | 1107 a, b = revs[d], revs[d + 1] |
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1108 nb = self.node(b) |
192 | 1109 |
1458
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|
1110 if infocollect is not None: |
1598
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1111 infocollect(nb) |
1458
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|
1112 |
1941
7518823709a2
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|
1113 d = self.revdiff(a, b) |
1598
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1114 p = self.parents(nb) |
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1115 meta = nb + p[0] + p[1] + lookup(nb) |
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|
1116 yield changegroup.genchunk("%s%s" % (meta, d)) |
46 | 1117 |
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1118 yield changegroup.closechunk() |
192 | 1119 |
1062 | 1120 def addgroup(self, revs, linkmapper, transaction, unique=0): |
1083 | 1121 """ |
1122 add a delta group | |
46 | 1123 |
1083 | 1124 given a set of deltas, add them to the revision log. the |
1125 first delta is against its parent, which should be in our | |
1126 log, the rest are against the previous delta. | |
1127 """ | |
1128 | |
1129 #track the base of the current delta log | |
46 | 1130 r = self.count() |
1131 t = r - 1 | |
2002
4aab906517c6
Calling revlog.addgroup with an empty changegroup now raises RevlogError.
Thomas Arendsen Hein <thomas@intevation.de>
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|
1132 node = None |
515 | 1133 |
3578
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Thomas Arendsen Hein <thomas@intevation.de>
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|
1134 base = prev = nullrev |
2078
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1135 start = end = textlen = 0 |
46 | 1136 if r: |
1137 end = self.end(t) | |
1138 | |
2072 | 1139 ifh = self.opener(self.indexfile, "a+") |
2077
4d0700ae0991
Fix inlined revlogs to seek to eof after opening "a+"
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|
1140 ifh.seek(0, 2) |
2084 | 1141 transaction.add(self.indexfile, ifh.tell(), self.count()) |
2073 | 1142 if self.inlinedata(): |
1143 dfh = None | |
1144 else: | |
1145 transaction.add(self.datafile, end) | |
1146 dfh = self.opener(self.datafile, "a") | |
46 | 1147 |
1148 # loop through our set of deltas | |
192 | 1149 chain = None |
1150 for chunk in revs: | |
1151 node, p1, p2, cs = struct.unpack("20s20s20s20s", chunk[:80]) | |
94 | 1152 link = linkmapper(cs) |
77 | 1153 if node in self.nodemap: |
224
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1154 # this can happen if two branches make the same change |
1218
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1155 # if unique: |
1402
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
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1156 # raise RevlogError(_("already have %s") % hex(node[:4])) |
653
94cdd02792b5
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1157 chain = node |
224
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1158 continue |
192 | 1159 delta = chunk[80:] |
1160 | |
1509
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1161 for p in (p1, p2): |
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|
1162 if not p in self.nodemap: |
3930
01d98d68d697
Add revlog.LookupError exception, and use it instead of RevlogError.
Brendan Cully <brendan@kublai.com>
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diff
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|
1163 raise LookupError(_("unknown parent %s") % short(p)) |
1509
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1164 |
192 | 1165 if not chain: |
1166 # retrieve the parent revision of the delta chain | |
1167 chain = p1 | |
1168 if not chain in self.nodemap: | |
3930
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parents:
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|
1169 raise LookupError(_("unknown base %s") % short(chain[:4])) |
46 | 1170 |
1171 # full versions are inserted when the needed deltas become | |
1172 # comparable to the uncompressed text or when the previous | |
1173 # version is not the one we have a delta against. We use | |
1174 # the size of the previous full rev as a proxy for the | |
1175 # current size. | |
1176 | |
1177 if chain == prev: | |
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|
1178 tempd = compress(delta) |
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|
1179 cdelta = tempd[0] + tempd[1] |
2078
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diff
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1180 textlen = mdiff.patchedsize(textlen, delta) |
46 | 1181 |
2078
441ea218414e
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diff
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1182 if chain != prev or (end - start + len(cdelta)) > textlen * 2: |
46 | 1183 # flush our writes here so we can read it in revision |
2072 | 1184 if dfh: |
1185 dfh.flush() | |
46 | 1186 ifh.flush() |
65
d40cc5aacc31
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64
diff
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|
1187 text = self.revision(chain) |
73 | 1188 text = self.patches(text, [delta]) |
3390
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1189 chk = self._addrevision(text, transaction, link, p1, p2, None, |
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1190 ifh, dfh) |
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1191 if not dfh and not self.inlinedata(): |
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|
1192 # addrevision switched from inline to conventional |
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1193 # reopen the index |
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1194 dfh = self.opener(self.datafile, "a") |
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|
1195 ifh = self.opener(self.indexfile, "a") |
46 | 1196 if chk != node: |
1402
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i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1400
diff
changeset
|
1197 raise RevlogError(_("consistency error adding group")) |
2078
441ea218414e
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2077
diff
changeset
|
1198 textlen = len(text) |
46 | 1199 else: |
2142
8a1e2a9c7013
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Thomas Arendsen Hein <thomas@intevation.de>
parents:
2141
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|
1200 if self.version == REVLOGV0: |
2072 | 1201 e = (end, len(cdelta), base, link, p1, p2, node) |
1202 else: | |
2078
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2077
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1203 e = (self.offset_type(end, 0), len(cdelta), textlen, base, |
2072 | 1204 link, self.rev(p1), self.rev(p2), node) |
46 | 1205 self.index.append(e) |
1206 self.nodemap[node] = r | |
2073 | 1207 if self.inlinedata(): |
1208 ifh.write(struct.pack(self.indexformat, *e)) | |
1209 ifh.write(cdelta) | |
2075
343aeefb553b
Make the appendfile class inline-data index friendly
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2073
diff
changeset
|
1210 self.checkinlinesize(transaction, ifh) |
2073 | 1211 if not self.inlinedata(): |
1212 dfh = self.opener(self.datafile, "a") | |
1213 ifh = self.opener(self.indexfile, "a") | |
1214 else: | |
1215 dfh.write(cdelta) | |
1216 ifh.write(struct.pack(self.indexformat, *e)) | |
46 | 1217 |
65
d40cc5aacc31
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64
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|
1218 t, r, chain, prev = r, r + 1, node, node |
1749
d457fec76ab0
fix warnings from pychecker (unused variables and shadowing)
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1711
diff
changeset
|
1219 base = self.base(t) |
d457fec76ab0
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1711
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changeset
|
1220 start = self.start(base) |
46 | 1221 end = self.end(t) |
1222 | |
1223 return node | |
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1224 |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1225 def strip(self, rev, minlink): |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
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1533
diff
changeset
|
1226 if self.count() == 0 or rev >= self.count(): |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
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1533
diff
changeset
|
1227 return |
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1228 |
2072 | 1229 if isinstance(self.index, lazyindex): |
1230 self.loadindexmap() | |
1231 | |
1535
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Add revlog.strip to truncate away revisions.
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1232 # When stripping away a revision, we need to make sure it |
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1233 # does not actually belong to an older changeset. |
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1234 # The minlink parameter defines the oldest revision |
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1235 # we're allowed to strip away. |
2072 | 1236 while minlink > self.index[rev][-4]: |
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1237 rev += 1 |
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1238 if rev >= self.count(): |
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1239 return |
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1240 |
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1241 # first truncate the files on disk |
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1242 end = self.start(rev) |
2073 | 1243 if not self.inlinedata(): |
1244 df = self.opener(self.datafile, "a") | |
1245 df.truncate(end) | |
1246 end = rev * struct.calcsize(self.indexformat) | |
1247 else: | |
1248 end += rev * struct.calcsize(self.indexformat) | |
2072 | 1249 |
1250 indexf = self.opener(self.indexfile, "a") | |
1251 indexf.truncate(end) | |
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1252 |
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1253 # then reset internal state in memory to forget those revisions |
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1254 self.cache = None |
1711 | 1255 self.chunkcache = None |
2072 | 1256 for x in xrange(rev, self.count()): |
1257 del self.nodemap[self.node(x)] | |
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1258 |
2072 | 1259 del self.index[rev:] |
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1260 |
1493
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verify: add check for mismatch of index and data length
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1261 def checksize(self): |
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1262 expected = 0 |
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1263 if self.count(): |
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1264 expected = self.end(self.count() - 1) |
1667
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1265 |
1494
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1266 try: |
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1267 f = self.opener(self.datafile) |
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1268 f.seek(0, 2) |
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1269 actual = f.tell() |
1667
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1270 dd = actual - expected |
1494
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1271 except IOError, inst: |
1667
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1272 if inst.errno != errno.ENOENT: |
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1273 raise |
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1274 dd = 0 |
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1275 |
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1276 try: |
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1277 f = self.opener(self.indexfile) |
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1278 f.seek(0, 2) |
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1279 actual = f.tell() |
2072 | 1280 s = struct.calcsize(self.indexformat) |
1667
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1281 i = actual / s |
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1282 di = actual - (i * s) |
2073 | 1283 if self.inlinedata(): |
1284 databytes = 0 | |
1285 for r in xrange(self.count()): | |
1286 databytes += self.length(r) | |
1287 dd = 0 | |
1288 di = actual - self.count() * s - databytes | |
1667
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1289 except IOError, inst: |
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1290 if inst.errno != errno.ENOENT: |
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1291 raise |
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1292 di = 0 |
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1293 |
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1294 return (dd, di) |
1494
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1295 |
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1296 |