Mercurial > hg > mercurial-crew-with-dirclash
annotate mercurial/revlog.py @ 4277:0ce23256e454
Fixed spacing in assignment of REVLOG_DEFAULT_VERSION
author | Thomas Arendsen Hein <thomas@intevation.de> |
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date | Sat, 24 Mar 2007 13:31:43 +0100 |
parents | b11a2fb59cf5 |
children | d69bdc1091b8 |
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 |
29 def flagstr(flag): | |
30 if flag == "inline": | |
31 return REVLOGNGINLINEDATA | |
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32 raise RevlogError(_("unknown revlog flag %s") % flag) |
2073 | 33 |
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34 def hash(text, p1, p2): |
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35 """generate a hash from the given text and its parent hashes |
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36 |
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37 This hash combines both the current file contents and its history |
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38 in a manner that makes it easy to distinguish nodes with the same |
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39 content in the revision graph. |
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40 """ |
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41 l = [p1, p2] |
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42 l.sort() |
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43 s = sha.new(l[0]) |
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44 s.update(l[1]) |
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45 s.update(text) |
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46 return s.digest() |
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47 |
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48 def compress(text): |
1083 | 49 """ generate a possibly-compressed representation of text """ |
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50 if not text: return ("", text) |
112 | 51 if len(text) < 44: |
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52 if text[0] == '\0': return ("", text) |
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53 return ('u', text) |
112 | 54 bin = zlib.compress(text) |
55 if len(bin) > len(text): | |
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56 if text[0] == '\0': return ("", text) |
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57 return ('u', text) |
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58 return ("", bin) |
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59 |
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60 def decompress(bin): |
1083 | 61 """ decompress the given input """ |
112 | 62 if not bin: return bin |
63 t = bin[0] | |
64 if t == '\0': return bin | |
65 if t == 'x': return zlib.decompress(bin) | |
66 if t == 'u': return bin[1:] | |
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67 raise RevlogError(_("unknown compression type %r") % t) |
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68 |
2072 | 69 indexformatv0 = ">4l20s20s20s" |
2079 | 70 v0shaoffset = 56 |
2072 | 71 # index ng: |
72 # 6 bytes offset | |
73 # 2 bytes flags | |
74 # 4 bytes compressed length | |
75 # 4 bytes uncompressed length | |
76 # 4 bytes: base rev | |
77 # 4 bytes link rev | |
78 # 4 bytes parent 1 rev | |
79 # 4 bytes parent 2 rev | |
80 # 32 bytes: nodeid | |
81 indexformatng = ">Qiiiiii20s12x" | |
2079 | 82 ngshaoffset = 32 |
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83 versionformat = ">I" |
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84 |
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85 class lazyparser(object): |
1083 | 86 """ |
87 this class avoids the need to parse the entirety of large indices | |
88 """ | |
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89 |
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90 # lazyparser is not safe to use on windows if win32 extensions not |
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91 # available. it keeps file handle open, which make it not possible |
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92 # to break hardlinks on local cloned repos. |
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93 safe_to_use = os.name != 'nt' or (not util.is_win_9x() and |
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94 hasattr(util, 'win32api')) |
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95 |
2079 | 96 def __init__(self, dataf, size, indexformat, shaoffset): |
97 self.dataf = dataf | |
98 self.format = indexformat | |
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99 self.s = struct.calcsize(indexformat) |
2072 | 100 self.indexformat = indexformat |
2079 | 101 self.datasize = size |
102 self.l = size/self.s | |
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103 self.index = [None] * self.l |
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104 self.map = {nullid: nullrev} |
2079 | 105 self.allmap = 0 |
323 | 106 self.all = 0 |
2079 | 107 self.mapfind_count = 0 |
108 self.shaoffset = shaoffset | |
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109 |
2079 | 110 def loadmap(self): |
111 """ | |
112 during a commit, we need to make sure the rev being added is | |
113 not a duplicate. This requires loading the entire index, | |
114 which is fairly slow. loadmap can load up just the node map, | |
115 which takes much less time. | |
116 """ | |
117 if self.allmap: return | |
118 end = self.datasize | |
119 self.allmap = 1 | |
120 cur = 0 | |
121 count = 0 | |
122 blocksize = self.s * 256 | |
123 self.dataf.seek(0) | |
124 while cur < end: | |
125 data = self.dataf.read(blocksize) | |
126 off = 0 | |
127 for x in xrange(256): | |
128 n = data[off + self.shaoffset:off + self.shaoffset + 20] | |
129 self.map[n] = count | |
130 count += 1 | |
131 if count >= self.l: | |
132 break | |
133 off += self.s | |
134 cur += blocksize | |
135 | |
136 def loadblock(self, blockstart, blocksize, data=None): | |
323 | 137 if self.all: return |
2079 | 138 if data is None: |
139 self.dataf.seek(blockstart) | |
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140 if blockstart + blocksize > self.datasize: |
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141 # the revlog may have grown since we've started running, |
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142 # but we don't have space in self.index for more entries. |
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143 # limit blocksize so that we don't get too much data. |
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144 blocksize = max(self.datasize - blockstart, 0) |
2079 | 145 data = self.dataf.read(blocksize) |
146 lend = len(data) / self.s | |
147 i = blockstart / self.s | |
148 off = 0 | |
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149 # lazyindex supports __delitem__ |
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150 if lend > len(self.index) - i: |
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151 lend = len(self.index) - i |
2079 | 152 for x in xrange(lend): |
153 if self.index[i + x] == None: | |
154 b = data[off : off + self.s] | |
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155 self.index[i + x] = b |
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156 n = b[self.shaoffset:self.shaoffset + 20] |
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157 self.map[n] = i + x |
2079 | 158 off += self.s |
159 | |
160 def findnode(self, node): | |
161 """search backwards through the index file for a specific node""" | |
162 if self.allmap: return None | |
163 | |
164 # hg log will cause many many searches for the manifest | |
165 # nodes. After we get called a few times, just load the whole | |
166 # thing. | |
167 if self.mapfind_count > 8: | |
168 self.loadmap() | |
169 if node in self.map: | |
170 return node | |
171 return None | |
172 self.mapfind_count += 1 | |
173 last = self.l - 1 | |
174 while self.index[last] != None: | |
175 if last == 0: | |
176 self.all = 1 | |
177 self.allmap = 1 | |
178 return None | |
179 last -= 1 | |
180 end = (last + 1) * self.s | |
181 blocksize = self.s * 256 | |
182 while end >= 0: | |
183 start = max(end - blocksize, 0) | |
184 self.dataf.seek(start) | |
185 data = self.dataf.read(end - start) | |
186 findend = end - start | |
187 while True: | |
188 # we're searching backwards, so weh have to make sure | |
189 # we don't find a changeset where this node is a parent | |
190 off = data.rfind(node, 0, findend) | |
191 findend = off | |
192 if off >= 0: | |
193 i = off / self.s | |
194 off = i * self.s | |
195 n = data[off + self.shaoffset:off + self.shaoffset + 20] | |
196 if n == node: | |
197 self.map[n] = i + start / self.s | |
198 return node | |
199 else: | |
200 break | |
201 end -= blocksize | |
202 return None | |
203 | |
204 def loadindex(self, i=None, end=None): | |
205 if self.all: return | |
206 all = False | |
207 if i == None: | |
208 blockstart = 0 | |
209 blocksize = (512 / self.s) * self.s | |
210 end = self.datasize | |
211 all = True | |
323 | 212 else: |
2079 | 213 if end: |
214 blockstart = i * self.s | |
215 end = end * self.s | |
216 blocksize = end - blockstart | |
217 else: | |
218 blockstart = (i & ~(32)) * self.s | |
219 blocksize = self.s * 64 | |
220 end = blockstart + blocksize | |
221 while blockstart < end: | |
222 self.loadblock(blockstart, blocksize) | |
223 blockstart += blocksize | |
224 if all: self.all = True | |
515 | 225 |
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226 class lazyindex(object): |
1083 | 227 """a lazy version of the index array""" |
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228 def __init__(self, parser): |
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229 self.p = parser |
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230 def __len__(self): |
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231 return len(self.p.index) |
115 | 232 def load(self, pos): |
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233 if pos < 0: |
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234 pos += len(self.p.index) |
2079 | 235 self.p.loadindex(pos) |
115 | 236 return self.p.index[pos] |
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237 def __getitem__(self, pos): |
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238 ret = self.p.index[pos] or self.load(pos) |
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239 if isinstance(ret, str): |
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240 ret = struct.unpack(self.p.indexformat, ret) |
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241 return ret |
2072 | 242 def __setitem__(self, pos, item): |
243 self.p.index[pos] = item | |
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244 def __delitem__(self, pos): |
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245 del self.p.index[pos] |
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246 def append(self, e): |
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247 self.p.index.append(e) |
515 | 248 |
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249 class lazymap(object): |
1083 | 250 """a lazy version of the node map""" |
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251 def __init__(self, parser): |
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252 self.p = parser |
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253 def load(self, key): |
2079 | 254 n = self.p.findnode(key) |
255 if n == None: | |
1214 | 256 raise KeyError(key) |
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257 def __contains__(self, key): |
2079 | 258 if key in self.p.map: |
259 return True | |
260 self.p.loadmap() | |
323 | 261 return key in self.p.map |
97 | 262 def __iter__(self): |
469 | 263 yield nullid |
97 | 264 for i in xrange(self.p.l): |
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265 ret = self.p.index[i] |
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266 if not ret: |
2079 | 267 self.p.loadindex(i) |
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268 ret = self.p.index[i] |
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269 if isinstance(ret, str): |
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270 ret = struct.unpack(self.p.indexformat, ret) |
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271 yield ret[-1] |
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272 def __getitem__(self, key): |
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273 try: |
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274 return self.p.map[key] |
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275 except KeyError: |
86
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276 try: |
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277 self.load(key) |
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278 return self.p.map[key] |
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279 except KeyError: |
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280 raise KeyError("node " + hex(key)) |
76
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281 def __setitem__(self, key, val): |
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282 self.p.map[key] = val |
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283 def __delitem__(self, key): |
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284 del self.p.map[key] |
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285 |
1073
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286 class RevlogError(Exception): pass |
3930
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287 class LookupError(RevlogError): pass |
1073
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288 |
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289 class revlog(object): |
1083 | 290 """ |
291 the underlying revision storage object | |
292 | |
293 A revlog consists of two parts, an index and the revision data. | |
294 | |
295 The index is a file with a fixed record size containing | |
296 information on each revision, includings its nodeid (hash), the | |
297 nodeids of its parents, the position and offset of its data within | |
298 the data file, and the revision it's based on. Finally, each entry | |
299 contains a linkrev entry that can serve as a pointer to external | |
300 data. | |
301 | |
302 The revision data itself is a linear collection of data chunks. | |
303 Each chunk represents a revision and is usually represented as a | |
304 delta against the previous chunk. To bound lookup time, runs of | |
305 deltas are limited to about 2 times the length of the original | |
306 version data. This makes retrieval of a version proportional to | |
307 its size, or O(1) relative to the number of revisions. | |
308 | |
309 Both pieces of the revlog are written to in an append-only | |
310 fashion, which means we never need to rewrite a file to insert or | |
311 remove data, and can use some simple techniques to avoid the need | |
312 for locking while reading. | |
313 """ | |
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314 def __init__(self, opener, indexfile): |
1083 | 315 """ |
316 create a revlog object | |
317 | |
318 opener is a function that abstracts the file opening operation | |
319 and can be used to implement COW semantics or the like. | |
320 """ | |
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321 self.indexfile = indexfile |
4266
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322 self.datafile = indexfile[:-2] + ".d" |
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323 self.opener = opener |
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324 |
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325 self.indexstat = None |
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326 self.cache = None |
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327 self.chunkcache = None |
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328 self.defversion = REVLOG_DEFAULT_VERSION |
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329 if hasattr(opener, "defversion"): |
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330 self.defversion = opener.defversion |
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331 self.load() |
116
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332 |
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333 def load(self): |
2072 | 334 v = self.defversion |
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335 try: |
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336 f = self.opener(self.indexfile) |
2079 | 337 i = f.read(4) |
338 f.seek(0) | |
1322
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339 except IOError, inst: |
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340 if inst.errno != errno.ENOENT: |
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341 raise |
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342 i = "" |
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343 else: |
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344 try: |
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345 st = util.fstat(f) |
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346 except AttributeError, inst: |
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347 st = None |
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348 else: |
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349 oldst = self.indexstat |
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350 if (oldst and st.st_dev == oldst.st_dev |
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351 and st.st_ino == oldst.st_ino |
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352 and st.st_mtime == oldst.st_mtime |
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353 and st.st_ctime == oldst.st_ctime): |
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354 return |
2072 | 355 self.indexstat = st |
2138
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356 if len(i) > 0: |
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357 v = struct.unpack(versionformat, i)[0] |
2073 | 358 flags = v & ~0xFFFF |
359 fmt = v & 0xFFFF | |
2142
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360 if fmt == REVLOGV0: |
2073 | 361 if flags: |
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362 raise RevlogError(_("index %s unknown flags %#04x for format v0") |
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363 % (self.indexfile, flags >> 16)) |
2073 | 364 elif fmt == REVLOGNG: |
365 if flags & ~REVLOGNGINLINEDATA: | |
3754
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366 raise RevlogError(_("index %s unknown flags %#04x for revlogng") |
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367 % (self.indexfile, flags >> 16)) |
2073 | 368 else: |
3744
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369 raise RevlogError(_("index %s unknown format %d") |
3680
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Indentation cleanups for 2956948b81f3.
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370 % (self.indexfile, fmt)) |
2072 | 371 self.version = v |
2142
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372 if v == REVLOGV0: |
2072 | 373 self.indexformat = indexformatv0 |
2079 | 374 shaoffset = v0shaoffset |
2072 | 375 else: |
376 self.indexformat = indexformatng | |
2079 | 377 shaoffset = ngshaoffset |
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378 |
2072 | 379 if i: |
2250
45aef5ddcdbe
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380 if (lazyparser.safe_to_use and not self.inlinedata() and |
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381 st and st.st_size > 10000): |
2072 | 382 # big index, let's parse it on demand |
2079 | 383 parser = lazyparser(f, st.st_size, self.indexformat, shaoffset) |
2072 | 384 self.index = lazyindex(parser) |
385 self.nodemap = lazymap(parser) | |
386 else: | |
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387 self.parseindex(f, st) |
2142
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388 if self.version != REVLOGV0: |
2072 | 389 e = list(self.index[0]) |
390 type = self.ngtype(e[0]) | |
391 e[0] = self.offset_type(0, type) | |
392 self.index[0] = e | |
116
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393 else: |
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
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394 self.nodemap = {nullid: nullrev} |
2072 | 395 self.index = [] |
396 | |
397 | |
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398 def parseindex(self, fp, st): |
2072 | 399 s = struct.calcsize(self.indexformat) |
400 self.index = [] | |
3578
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401 self.nodemap = {nullid: nullrev} |
2073 | 402 inline = self.inlinedata() |
2072 | 403 n = 0 |
2255
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|
404 leftover = None |
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405 while True: |
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|
406 if st: |
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407 data = fp.read(65536) |
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408 else: |
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409 # hack for httprangereader, it doesn't do partial reads well |
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410 data = fp.read() |
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411 if not data: |
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|
412 break |
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413 if n == 0 and self.inlinedata(): |
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|
414 # cache the first chunk |
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415 self.chunkcache = (0, data) |
2289
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|
416 if leftover: |
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417 data = leftover + data |
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418 leftover = None |
2255
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419 off = 0 |
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420 l = len(data) |
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421 while off < l: |
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422 if l - off < s: |
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423 leftover = data[off:] |
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|
424 break |
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changeset
|
425 cur = data[off:off + s] |
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diff
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|
426 off += s |
2255
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427 e = struct.unpack(self.indexformat, cur) |
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428 self.index.append(e) |
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429 self.nodemap[e[-1]] = n |
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430 n += 1 |
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431 if inline: |
4222
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432 if e[1] < 0: |
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|
433 break |
2255
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434 off += e[1] |
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435 if off > l: |
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|
436 # some things don't seek well, just read it |
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437 fp.read(off - l) |
4222
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changeset
|
438 break |
2255
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|
439 if not st: |
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|
440 break |
2600
c4325f0a9b91
clean up trailing white space.
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441 |
116
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442 |
2072 | 443 def ngoffset(self, q): |
444 if q & 0xFFFF: | |
445 raise RevlogError(_('%s: incompatible revision flag %x') % | |
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446 (self.indexfile, q)) |
2072 | 447 return long(q >> 16) |
448 | |
449 def ngtype(self, q): | |
450 return int(q & 0xFFFF) | |
116
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451 |
2072 | 452 def offset_type(self, offset, type): |
453 return long(long(offset) << 16 | type) | |
454 | |
2079 | 455 def loadindex(self, start, end): |
456 """load a block of indexes all at once from the lazy parser""" | |
457 if isinstance(self.index, lazyindex): | |
458 self.index.p.loadindex(start, end) | |
459 | |
2072 | 460 def loadindexmap(self): |
461 """loads both the map and the index from the lazy parser""" | |
462 if isinstance(self.index, lazyindex): | |
463 p = self.index.p | |
2079 | 464 p.loadindex() |
465 self.nodemap = p.map | |
466 | |
467 def loadmap(self): | |
468 """loads the map from the lazy parser""" | |
469 if isinstance(self.nodemap, lazymap): | |
470 self.nodemap.p.loadmap() | |
471 self.nodemap = self.nodemap.p.map | |
0
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472 |
2073 | 473 def inlinedata(self): return self.version & REVLOGNGINLINEDATA |
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474 def tip(self): return self.node(len(self.index) - 1) |
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475 def count(self): return len(self.index) |
2072 | 476 def node(self, rev): |
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477 return rev == nullrev and nullid or self.index[rev][-1] |
1201
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478 def rev(self, node): |
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479 try: |
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480 return self.nodemap[node] |
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481 except KeyError: |
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482 raise LookupError(_('%s: no node %s') % (self.indexfile, hex(node))) |
2651
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483 def linkrev(self, node): |
3578
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484 return (node == nullid) and nullrev or self.index[self.rev(node)][-4] |
2 | 485 def parents(self, node): |
486 if node == nullid: return (nullid, nullid) | |
2072 | 487 r = self.rev(node) |
488 d = self.index[r][-3:-1] | |
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489 if self.version == REVLOGV0: |
2072 | 490 return d |
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491 return (self.node(d[0]), self.node(d[1])) |
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492 def parentrevs(self, rev): |
3578
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493 if rev == nullrev: |
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494 return (nullrev, nullrev) |
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495 d = self.index[rev][-3:-1] |
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496 if self.version == REVLOGV0: |
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497 return (self.rev(d[0]), self.rev(d[1])) |
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498 return d |
2072 | 499 def start(self, rev): |
3585
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500 if rev == nullrev: |
3584
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501 return 0 |
2142
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502 if self.version != REVLOGV0: |
2072 | 503 return self.ngoffset(self.index[rev][0]) |
504 return self.index[rev][0] | |
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505 |
2072 | 506 def end(self, rev): return self.start(rev) + self.length(rev) |
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507 |
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508 def size(self, rev): |
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509 """return the length of the uncompressed text for a given revision""" |
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510 if rev == nullrev: |
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511 return 0 |
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512 l = -1 |
2142
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513 if self.version != REVLOGV0: |
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514 l = self.index[rev][2] |
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515 if l >= 0: |
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516 return l |
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517 |
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518 t = self.revision(self.node(rev)) |
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519 return len(t) |
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520 |
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521 # alternate implementation, The advantage to this code is it |
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522 # will be faster for a single revision. But, the results are not |
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523 # cached, so finding the size of every revision will be slower. |
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524 """ |
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525 if self.cache and self.cache[1] == rev: |
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526 return len(self.cache[2]) |
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527 |
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528 base = self.base(rev) |
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529 if self.cache and self.cache[1] >= base and self.cache[1] < rev: |
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530 base = self.cache[1] |
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531 text = self.cache[2] |
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532 else: |
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533 text = self.revision(self.node(base)) |
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534 |
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535 l = len(text) |
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536 for x in xrange(base + 1, rev + 1): |
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537 l = mdiff.patchedsize(l, self.chunk(x)) |
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538 return l |
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539 """ |
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|
540 |
1941
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revlog.py: factorization and fixes for rev < 0 (nullid)
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diff
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|
541 def length(self, rev): |
3585
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542 if rev == nullrev: |
1941
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543 return 0 |
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544 else: |
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545 return self.index[rev][1] |
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546 def base(self, rev): |
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547 if (rev == nullrev): |
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548 return nullrev |
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549 else: |
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550 return self.index[rev][-5] |
0
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551 |
3633
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552 def reachable(self, node, stop=None): |
3683 | 553 """return a hash of all nodes ancestral to a given node, including |
554 the node itself, stopping when stop is matched""" | |
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555 reachable = {} |
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556 visit = [node] |
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557 reachable[node] = 1 |
1074
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558 if stop: |
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559 stopn = self.rev(stop) |
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560 else: |
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561 stopn = 0 |
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562 while visit: |
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563 n = visit.pop(0) |
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564 if n == stop: |
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565 continue |
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566 if n == nullid: |
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567 continue |
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568 for p in self.parents(n): |
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569 if self.rev(p) < stopn: |
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570 continue |
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571 if p not in reachable: |
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572 reachable[p] = 1 |
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573 visit.append(p) |
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574 return reachable |
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575 |
1457
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576 def nodesbetween(self, roots=None, heads=None): |
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diff
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577 """Return a tuple containing three elements. Elements 1 and 2 contain |
518da3c3b6ce
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578 a final list bases and heads after all the unreachable ones have been |
518da3c3b6ce
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diff
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579 pruned. Element 0 contains a topologically sorted list of all |
518da3c3b6ce
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580 |
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diff
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|
581 nodes that satisfy these constraints: |
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diff
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582 1. All nodes must be descended from a node in roots (the nodes on |
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diff
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583 roots are considered descended from themselves). |
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584 2. All nodes must also be ancestors of a node in heads (the nodes in |
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585 heads are considered to be their own ancestors). |
518da3c3b6ce
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586 |
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diff
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587 If roots is unspecified, nullid is assumed as the only root. |
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parents:
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diff
changeset
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588 If heads is unspecified, it is taken to be the output of the |
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parents:
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diff
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589 heads method (i.e. a list of all nodes in the repository that |
518da3c3b6ce
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diff
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|
590 have no children).""" |
1463
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parents:
1459
diff
changeset
|
591 nonodes = ([], [], []) |
1457
518da3c3b6ce
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592 if roots is not None: |
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593 roots = list(roots) |
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594 if not roots: |
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595 return nonodes |
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596 lowestrev = min([self.rev(n) for n in roots]) |
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597 else: |
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598 roots = [nullid] # Everybody's a descendent of nullid |
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599 lowestrev = nullrev |
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600 if (lowestrev == nullrev) and (heads is None): |
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601 # We want _all_ the nodes! |
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602 return ([self.node(r) for r in xrange(0, self.count())], |
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603 [nullid], list(self.heads())) |
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604 if heads is None: |
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605 # All nodes are ancestors, so the latest ancestor is the last |
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606 # node. |
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607 highestrev = self.count() - 1 |
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608 # Set ancestors to None to signal that every node is an ancestor. |
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609 ancestors = None |
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610 # Set heads to an empty dictionary for later discovery of heads |
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611 heads = {} |
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612 else: |
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613 heads = list(heads) |
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614 if not heads: |
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615 return nonodes |
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616 ancestors = {} |
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617 # Turn heads into a dictionary so we can remove 'fake' heads. |
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618 # Also, later we will be using it to filter out the heads we can't |
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619 # find from roots. |
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620 heads = dict.fromkeys(heads, 0) |
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621 # Start at the top and keep marking parents until we're done. |
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622 nodestotag = heads.keys() |
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623 # Remember where the top was so we can use it as a limit later. |
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624 highestrev = max([self.rev(n) for n in nodestotag]) |
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625 while nodestotag: |
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626 # grab a node to tag |
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627 n = nodestotag.pop() |
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628 # Never tag nullid |
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629 if n == nullid: |
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630 continue |
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631 # A node's revision number represents its place in a |
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632 # topologically sorted list of nodes. |
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633 r = self.rev(n) |
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634 if r >= lowestrev: |
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635 if n not in ancestors: |
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636 # If we are possibly a descendent of one of the roots |
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637 # and we haven't already been marked as an ancestor |
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638 ancestors[n] = 1 # Mark as ancestor |
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639 # Add non-nullid parents to list of nodes to tag. |
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640 nodestotag.extend([p for p in self.parents(n) if |
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641 p != nullid]) |
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642 elif n in heads: # We've seen it before, is it a fake head? |
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643 # So it is, real heads should not be the ancestors of |
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644 # any other heads. |
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645 heads.pop(n) |
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Fix small bug in nodesbetween if heads is [nullid].
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646 if not ancestors: |
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647 return nonodes |
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648 # Now that we have our set of ancestors, we want to remove any |
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649 # roots that are not ancestors. |
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650 |
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651 # If one of the roots was nullid, everything is included anyway. |
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652 if lowestrev > nullrev: |
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653 # But, since we weren't, let's recompute the lowest rev to not |
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654 # include roots that aren't ancestors. |
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655 |
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656 # Filter out roots that aren't ancestors of heads |
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657 roots = [n for n in roots if n in ancestors] |
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658 # Recompute the lowest revision |
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659 if roots: |
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660 lowestrev = min([self.rev(n) for n in roots]) |
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661 else: |
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662 # No more roots? Return empty list |
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663 return nonodes |
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664 else: |
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665 # We are descending from nullid, and don't need to care about |
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666 # any other roots. |
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667 lowestrev = nullrev |
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668 roots = [nullid] |
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669 # Transform our roots list into a 'set' (i.e. a dictionary where the |
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670 # values don't matter. |
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671 descendents = dict.fromkeys(roots, 1) |
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672 # Also, keep the original roots so we can filter out roots that aren't |
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673 # 'real' roots (i.e. are descended from other roots). |
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674 roots = descendents.copy() |
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675 # Our topologically sorted list of output nodes. |
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676 orderedout = [] |
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677 # Don't start at nullid since we don't want nullid in our output list, |
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678 # and if nullid shows up in descedents, empty parents will look like |
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679 # they're descendents. |
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680 for r in xrange(max(lowestrev, 0), highestrev + 1): |
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681 n = self.node(r) |
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682 isdescendent = False |
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683 if lowestrev == nullrev: # Everybody is a descendent of nullid |
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684 isdescendent = True |
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685 elif n in descendents: |
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686 # n is already a descendent |
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687 isdescendent = True |
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688 # This check only needs to be done here because all the roots |
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689 # will start being marked is descendents before the loop. |
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690 if n in roots: |
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691 # If n was a root, check if it's a 'real' root. |
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692 p = tuple(self.parents(n)) |
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693 # If any of its parents are descendents, it's not a root. |
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694 if (p[0] in descendents) or (p[1] in descendents): |
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695 roots.pop(n) |
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696 else: |
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697 p = tuple(self.parents(n)) |
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698 # A node is a descendent if either of its parents are |
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699 # descendents. (We seeded the dependents list with the roots |
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700 # up there, remember?) |
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701 if (p[0] in descendents) or (p[1] in descendents): |
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702 descendents[n] = 1 |
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changeset
|
703 isdescendent = True |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
704 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
|
705 # 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
|
706 orderedout.append(n) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
707 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
|
708 # 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
|
709 # from roots. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
710 # 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
|
711 heads[n] = 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
712 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
|
713 # 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
|
714 # 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
|
715 # 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
|
716 heads[n] = 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
717 # 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
|
718 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
|
719 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
|
720 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
|
721 roots = roots.keys() |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
722 assert orderedout |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
723 assert roots |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
724 assert heads |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
725 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
|
726 |
3925
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
727 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
|
728 """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
|
729 |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
730 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
|
731 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
|
732 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
|
733 as if they had no children |
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
734 """ |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
735 if start is None: |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
736 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
|
737 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
|
738 stop = [] |
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
739 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
|
740 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
|
741 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
|
742 heads = {startrev: 1} |
1083 | 743 |
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
|
744 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
|
745 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
|
746 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
|
747 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
|
748 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
|
749 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
|
750 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
|
751 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
|
752 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
|
753 |
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
|
754 return [self.node(r) for r in heads] |
370 | 755 |
756 def children(self, node): | |
1083 | 757 """find the children of a given node""" |
370 | 758 c = [] |
759 p = self.rev(node) | |
760 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
|
761 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
|
762 if pr == p: |
c6773b7ebee8
revlog.children: use parentrevs instead of parents
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3438
diff
changeset
|
763 c.append(self.node(r)) |
370 | 764 return c |
515 | 765 |
3494
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
766 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
|
767 if isinstance(id, (long, int)): |
3152
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
768 # 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
|
769 return self.node(id) |
3438 | 770 if len(id) == 20: |
771 # possibly a binary node | |
772 # odds of a binary node being all hex in ASCII are 1 in 10**25 | |
773 try: | |
774 node = id | |
775 r = self.rev(node) # quick search the index | |
776 return node | |
3930
01d98d68d697
Add revlog.LookupError exception, and use it instead of RevlogError.
Brendan Cully <brendan@kublai.com>
parents:
3928
diff
changeset
|
777 except LookupError: |
3438 | 778 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
|
779 try: |
3152
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
780 # str(rev) |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
781 rev = int(id) |
469 | 782 if str(rev) != id: raise ValueError |
783 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
|
784 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
|
785 return self.node(rev) |
469 | 786 except (ValueError, OverflowError): |
3152
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
787 pass |
3494
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
788 if len(id) == 40: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
789 try: |
3438 | 790 # a full hex nodeid? |
791 node = bin(id) | |
792 r = self.rev(node) | |
3153
4fe41a9e4591
optimize revlog.lookup when passed hex(node)[:...]
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3152
diff
changeset
|
793 return node |
3494
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
794 except TypeError: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
795 pass |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
796 |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
797 def _partialmatch(self, id): |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
798 if len(id) < 40: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
799 try: |
3438 | 800 # hex(node)[:...] |
801 bin_id = bin(id[:len(id) & ~1]) # grab an even number of digits | |
802 node = None | |
803 for n in self.nodemap: | |
804 if n.startswith(bin_id) and hex(n).startswith(id): | |
805 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
|
806 raise LookupError(_("Ambiguous identifier")) |
3438 | 807 node = n |
808 if node is not None: | |
809 return node | |
3494
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
810 except TypeError: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
811 pass |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
812 |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
813 def lookup(self, id): |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
814 """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
|
815 - 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
|
816 - 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
|
817 """ |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
818 |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
819 n = self._match(id) |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
820 if n is not None: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
821 return n |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
822 n = self._partialmatch(id) |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
823 if n: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
824 return n |
515 | 825 |
3930
01d98d68d697
Add revlog.LookupError exception, and use it instead of RevlogError.
Brendan Cully <brendan@kublai.com>
parents:
3928
diff
changeset
|
826 raise LookupError(_("No match found")) |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
827 |
2910
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
828 def cmp(self, node, text): |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
829 """compare text with a given file revision""" |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
830 p1, p2 = self.parents(node) |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
831 return hash(text, p1, p2) != node |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
832 |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
833 def makenode(self, node, text): |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
834 """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
|
835 unchanged from node""" |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
836 |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
837 if self.cmp(node, text): |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
838 return hash(text, node, nullid) |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
839 return node |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2858
diff
changeset
|
840 |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
841 def diff(self, a, b): |
1083 | 842 """return a delta between two revisions""" |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
843 return mdiff.textdiff(a, b) |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
844 |
73 | 845 def patches(self, t, pl): |
1083 | 846 """apply a list of patches to a string""" |
73 | 847 return mdiff.patches(t, pl) |
848 | |
2072 | 849 def chunk(self, rev, df=None, cachelen=4096): |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
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850 start, length = self.start(rev), self.length(rev) |
2073 | 851 inline = self.inlinedata() |
852 if inline: | |
853 start += (rev + 1) * struct.calcsize(self.indexformat) | |
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854 end = start + length |
2072 | 855 def loadcache(df): |
856 cache_length = max(cachelen, length) # 4k | |
857 if not df: | |
2073 | 858 if inline: |
859 df = self.opener(self.indexfile) | |
860 else: | |
861 df = self.opener(self.datafile) | |
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862 df.seek(start) |
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863 self.chunkcache = (start, df.read(cache_length)) |
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864 |
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865 if not self.chunkcache: |
2072 | 866 loadcache(df) |
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867 |
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868 cache_start = self.chunkcache[0] |
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869 cache_end = cache_start + len(self.chunkcache[1]) |
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870 if start >= cache_start and end <= cache_end: |
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871 # it is cached |
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872 offset = start - cache_start |
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873 else: |
2072 | 874 loadcache(df) |
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875 offset = 0 |
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876 |
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877 #def checkchunk(): |
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878 # df = self.opener(self.datafile) |
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879 # df.seek(start) |
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880 # return df.read(length) |
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881 #assert s == checkchunk() |
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882 return decompress(self.chunkcache[1][offset:offset + length]) |
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883 |
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884 def delta(self, node): |
1083 | 885 """return or calculate a delta between a node and its predecessor""" |
119
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886 r = self.rev(node) |
1941
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887 return self.revdiff(r - 1, r) |
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888 |
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889 def revdiff(self, rev1, rev2): |
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890 """return or calculate a delta between two revisions""" |
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891 b1 = self.base(rev1) |
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892 b2 = self.base(rev2) |
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893 if b1 == b2 and rev1 + 1 == rev2: |
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894 return self.chunk(rev2) |
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895 else: |
1941
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896 return self.diff(self.revision(self.node(rev1)), |
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897 self.revision(self.node(rev2))) |
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898 |
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899 def revision(self, node): |
1083 | 900 """return an uncompressed revision of a given""" |
36
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901 if node == nullid: return "" |
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902 if self.cache and self.cache[0] == node: return self.cache[2] |
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903 |
1083 | 904 # look up what we need to read |
0
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905 text = None |
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906 rev = self.rev(node) |
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907 base = self.base(rev) |
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908 |
2073 | 909 if self.inlinedata(): |
910 # we probably have the whole chunk cached | |
911 df = None | |
912 else: | |
913 df = self.opener(self.datafile) | |
2072 | 914 |
1083 | 915 # do we have useful data cached? |
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916 if self.cache and self.cache[1] >= base and self.cache[1] < rev: |
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917 base = self.cache[1] |
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918 text = self.cache[2] |
2079 | 919 self.loadindex(base, rev + 1) |
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920 else: |
2079 | 921 self.loadindex(base, rev + 1) |
2072 | 922 text = self.chunk(base, df=df) |
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923 |
71
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924 bins = [] |
64 | 925 for r in xrange(base + 1, rev + 1): |
2072 | 926 bins.append(self.chunk(r, df=df)) |
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927 |
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928 text = self.patches(text, bins) |
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929 |
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930 p1, p2 = self.parents(node) |
26 | 931 if node != hash(text, p1, p2): |
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932 raise RevlogError(_("integrity check failed on %s:%d") |
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933 % (self.datafile, rev)) |
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934 |
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935 self.cache = (node, rev, text) |
515 | 936 return text |
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937 |
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2073
diff
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938 def checkinlinesize(self, tr, fp=None): |
2073 | 939 if not self.inlinedata(): |
940 return | |
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941 if not fp: |
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942 fp = self.opener(self.indexfile, 'r') |
2082
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diff
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|
943 fp.seek(0, 2) |
2073 | 944 size = fp.tell() |
945 if size < 131072: | |
946 return | |
2084 | 947 trinfo = tr.find(self.indexfile) |
948 if trinfo == None: | |
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949 raise RevlogError(_("%s not found in the transaction") |
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950 % self.indexfile) |
2084 | 951 |
952 trindex = trinfo[2] | |
953 dataoff = self.start(trindex) | |
954 | |
955 tr.add(self.datafile, dataoff) | |
2073 | 956 df = self.opener(self.datafile, 'w') |
957 calc = struct.calcsize(self.indexformat) | |
958 for r in xrange(self.count()): | |
959 start = self.start(r) + (r + 1) * calc | |
960 length = self.length(r) | |
961 fp.seek(start) | |
962 d = fp.read(length) | |
963 df.write(d) | |
964 fp.close() | |
965 df.close() | |
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966 fp = self.opener(self.indexfile, 'w', atomictemp=True) |
2073 | 967 self.version &= ~(REVLOGNGINLINEDATA) |
968 if self.count(): | |
969 x = self.index[0] | |
970 e = struct.pack(self.indexformat, *x)[4:] | |
971 l = struct.pack(versionformat, self.version) | |
972 fp.write(l) | |
973 fp.write(e) | |
974 | |
975 for i in xrange(1, self.count()): | |
976 x = self.index[i] | |
977 e = struct.pack(self.indexformat, *x) | |
978 fp.write(e) | |
979 | |
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980 # if we don't call rename, the temp file will never replace the |
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981 # real index |
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982 fp.rename() |
2084 | 983 |
984 tr.replace(self.indexfile, trindex * calc) | |
2073 | 985 self.chunkcache = None |
986 | |
644 | 987 def addrevision(self, text, transaction, link, p1=None, p2=None, d=None): |
1083 | 988 """add a revision to the log |
989 | |
990 text - the revision data to add | |
991 transaction - the transaction object used for rollback | |
992 link - the linkrev data to add | |
993 p1, p2 - the parent nodeids of the revision | |
994 d - an optional precomputed delta | |
995 """ | |
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996 if not self.inlinedata(): |
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997 dfh = self.opener(self.datafile, "a") |
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998 else: |
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999 dfh = None |
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1000 ifh = self.opener(self.indexfile, "a+") |
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1001 return self._addrevision(text, transaction, link, p1, p2, d, ifh, dfh) |
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1002 |
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1003 def _addrevision(self, text, transaction, link, p1, p2, d, ifh, dfh): |
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1004 if text is None: text = "" |
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1005 if p1 is None: p1 = self.tip() |
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1006 if p2 is None: p2 = nullid |
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1007 |
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1008 node = hash(text, p1, p2) |
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1009 |
301 | 1010 if node in self.nodemap: |
1011 return node | |
1012 | |
0
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1013 n = self.count() |
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1014 t = n - 1 |
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1015 |
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1016 if n: |
64 | 1017 base = self.base(t) |
1018 start = self.start(base) | |
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1019 end = self.end(t) |
644 | 1020 if not d: |
1021 prev = self.revision(self.tip()) | |
3333
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1022 d = self.diff(prev, text) |
98 | 1023 data = compress(d) |
1533
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1024 l = len(data[1]) + len(data[0]) |
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1025 dist = end - start + l |
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1026 |
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1027 # full versions are inserted when the needed deltas |
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1028 # become comparable to the uncompressed text |
64 | 1029 if not n or dist > len(text) * 2: |
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1030 data = compress(text) |
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1031 l = len(data[1]) + len(data[0]) |
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1032 base = n |
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1033 else: |
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1034 base = self.base(t) |
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1035 |
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parents:
diff
changeset
|
1036 offset = 0 |
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mpm@selenic.com
parents:
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|
1037 if t >= 0: |
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mpm@selenic.com
parents:
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|
1038 offset = self.end(t) |
9117c6561b0b
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|
1039 |
2142
8a1e2a9c7013
Replaced 0 with REVLOGV0 where this meaning is used.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
2141
diff
changeset
|
1040 if self.version == REVLOGV0: |
2072 | 1041 e = (offset, l, base, link, p1, p2, node) |
1042 else: | |
1043 e = (self.offset_type(offset, 0), l, len(text), | |
1044 base, link, self.rev(p1), self.rev(p2), node) | |
515 | 1045 |
0
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|
1046 self.index.append(e) |
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|
1047 self.nodemap[node] = n |
2072 | 1048 entry = struct.pack(self.indexformat, *e) |
0
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Add back links from file revisions to changeset revisions
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parents:
diff
changeset
|
1049 |
2073 | 1050 if not self.inlinedata(): |
1051 transaction.add(self.datafile, offset) | |
1052 transaction.add(self.indexfile, n * len(entry)) | |
1053 if data[0]: | |
3390
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
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diff
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|
1054 dfh.write(data[0]) |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
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|
1055 dfh.write(data[1]) |
a74addddd092
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
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changeset
|
1056 dfh.flush() |
2073 | 1057 else: |
3390
a74addddd092
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
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diff
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|
1058 ifh.seek(0, 2) |
a74addddd092
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
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|
1059 transaction.add(self.indexfile, ifh.tell(), self.count() - 1) |
2072 | 1060 |
2142
8a1e2a9c7013
Replaced 0 with REVLOGV0 where this meaning is used.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
2141
diff
changeset
|
1061 if len(self.index) == 1 and self.version != REVLOGV0: |
2072 | 1062 l = struct.pack(versionformat, self.version) |
3390
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
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diff
changeset
|
1063 ifh.write(l) |
2072 | 1064 entry = entry[4:] |
1065 | |
3390
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|
1066 ifh.write(entry) |
0
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|
1067 |
2073 | 1068 if self.inlinedata(): |
3390
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|
1069 ifh.write(data[0]) |
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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|
1070 ifh.write(data[1]) |
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|
1071 self.checkinlinesize(transaction, ifh) |
2073 | 1072 |
0
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|
1073 self.cache = (node, n, text) |
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|
1074 return node |
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|
1075 |
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|
1076 def ancestor(self, a, b): |
1083 | 1077 """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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diff
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|
1078 |
3139
1fd1cdcc4200
Switch revlog.ancestor to use revisions rather than nodeids
Matt Mackall <mpm@selenic.com>
parents:
3136
diff
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|
1079 def parents(rev): |
3578
3b4e00cba57a
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Thomas Arendsen Hein <thomas@intevation.de>
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diff
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|
1080 return [p for p in self.parentrevs(rev) if p != nullrev] |
515 | 1081 |
3139
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|
1082 c = ancestor.ancestor(self.rev(a), self.rev(b), parents) |
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|
1083 if c is None: |
1fd1cdcc4200
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diff
changeset
|
1084 return nullid |
1fd1cdcc4200
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Matt Mackall <mpm@selenic.com>
parents:
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diff
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|
1085 |
1fd1cdcc4200
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parents:
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diff
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|
1086 return self.node(c) |
0
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|
1087 |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1088 def group(self, nodelist, lookup, infocollect=None): |
1083 | 1089 """calculate a delta group |
46 | 1090 |
1083 | 1091 Given a list of changeset revs, return a set of deltas and |
1092 metadata corresponding to nodes. the first delta is | |
1093 parent(nodes[0]) -> nodes[0] the receiver is guaranteed to | |
1094 have this parent as it has all history before these | |
1095 changesets. parent is parent[0] | |
1096 """ | |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1097 revs = [self.rev(n) for n in nodelist] |
46 | 1098 |
1099 # if we don't have any revisions touched by these changesets, bail | |
192 | 1100 if not revs: |
1981
736b6c96bbbc
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Thomas Arendsen Hein <thomas@intevation.de>
parents:
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diff
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|
1101 yield changegroup.closechunk() |
192 | 1102 return |
46 | 1103 |
1104 # add the parent of the first rev | |
1105 p = self.parents(self.node(revs[0]))[0] | |
1106 revs.insert(0, self.rev(p)) | |
1107 | |
1108 # build deltas | |
71
47c9a869adee
Add mdiff.patches to speed up applying thousands of patches to the manifest
mpm@selenic.com
parents:
67
diff
changeset
|
1109 for d in xrange(0, len(revs) - 1): |
46 | 1110 a, b = revs[d], revs[d + 1] |
1598
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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diff
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|
1111 nb = self.node(b) |
192 | 1112 |
1458
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This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
1113 if infocollect is not None: |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
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|
1114 infocollect(nb) |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
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|
1115 |
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
1116 d = self.revdiff(a, b) |
1598
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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diff
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|
1117 p = self.parents(nb) |
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diff
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|
1118 meta = nb + p[0] + p[1] + lookup(nb) |
1981
736b6c96bbbc
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Thomas Arendsen Hein <thomas@intevation.de>
parents:
1941
diff
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|
1119 yield changegroup.genchunk("%s%s" % (meta, d)) |
46 | 1120 |
1981
736b6c96bbbc
make incoming work via ssh (issue139); move chunk code into separate module.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1941
diff
changeset
|
1121 yield changegroup.closechunk() |
192 | 1122 |
1062 | 1123 def addgroup(self, revs, linkmapper, transaction, unique=0): |
1083 | 1124 """ |
1125 add a delta group | |
46 | 1126 |
1083 | 1127 given a set of deltas, add them to the revision log. the |
1128 first delta is against its parent, which should be in our | |
1129 log, the rest are against the previous delta. | |
1130 """ | |
1131 | |
1132 #track the base of the current delta log | |
46 | 1133 r = self.count() |
1134 t = r - 1 | |
2002
4aab906517c6
Calling revlog.addgroup with an empty changegroup now raises RevlogError.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1981
diff
changeset
|
1135 node = None |
515 | 1136 |
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3505
diff
changeset
|
1137 base = prev = nullrev |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
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|
1138 start = end = textlen = 0 |
46 | 1139 if r: |
1140 end = self.end(t) | |
1141 | |
2072 | 1142 ifh = self.opener(self.indexfile, "a+") |
2077
4d0700ae0991
Fix inlined revlogs to seek to eof after opening "a+"
mason@suse.com
parents:
2076
diff
changeset
|
1143 ifh.seek(0, 2) |
2084 | 1144 transaction.add(self.indexfile, ifh.tell(), self.count()) |
2073 | 1145 if self.inlinedata(): |
1146 dfh = None | |
1147 else: | |
1148 transaction.add(self.datafile, end) | |
1149 dfh = self.opener(self.datafile, "a") | |
46 | 1150 |
1151 # loop through our set of deltas | |
192 | 1152 chain = None |
1153 for chunk in revs: | |
1154 node, p1, p2, cs = struct.unpack("20s20s20s20s", chunk[:80]) | |
94 | 1155 link = linkmapper(cs) |
77 | 1156 if node in self.nodemap: |
224
ccbcc4d76f81
fix bad assumption about uniqueness of file versions
mpm@selenic.com
parents:
221
diff
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|
1157 # this can happen if two branches make the same change |
1218
cde6818e082a
Add preliminary support for the bundle and unbundle commands
mpm@selenic.com
parents:
1214
diff
changeset
|
1158 # if unique: |
1402
9d2c2e6b32b5
i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1400
diff
changeset
|
1159 # raise RevlogError(_("already have %s") % hex(node[:4])) |
653
94cdd02792b5
Fix corruption resulting from skipping parts of a revision group
Matt Mackall <mpm@selenic.com>
parents:
651
diff
changeset
|
1160 chain = node |
224
ccbcc4d76f81
fix bad assumption about uniqueness of file versions
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parents:
221
diff
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|
1161 continue |
192 | 1162 delta = chunk[80:] |
1163 | |
1509
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
1164 for p in (p1, p2): |
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
1165 if not p in self.nodemap: |
3930
01d98d68d697
Add revlog.LookupError exception, and use it instead of RevlogError.
Brendan Cully <brendan@kublai.com>
parents:
3928
diff
changeset
|
1166 raise LookupError(_("unknown parent %s") % short(p)) |
1509
46a07392cf28
Add safety check for addgroup
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parents:
1494
diff
changeset
|
1167 |
192 | 1168 if not chain: |
1169 # retrieve the parent revision of the delta chain | |
1170 chain = p1 | |
1171 if not chain in self.nodemap: | |
3930
01d98d68d697
Add revlog.LookupError exception, and use it instead of RevlogError.
Brendan Cully <brendan@kublai.com>
parents:
3928
diff
changeset
|
1172 raise LookupError(_("unknown base %s") % short(chain[:4])) |
46 | 1173 |
1174 # full versions are inserted when the needed deltas become | |
1175 # comparable to the uncompressed text or when the previous | |
1176 # version is not the one we have a delta against. We use | |
1177 # the size of the previous full rev as a proxy for the | |
1178 # current size. | |
1179 | |
1180 if chain == prev: | |
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
1181 tempd = compress(delta) |
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
1182 cdelta = tempd[0] + tempd[1] |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1183 textlen = mdiff.patchedsize(textlen, delta) |
46 | 1184 |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1185 if chain != prev or (end - start + len(cdelta)) > textlen * 2: |
46 | 1186 # flush our writes here so we can read it in revision |
2072 | 1187 if dfh: |
1188 dfh.flush() | |
46 | 1189 ifh.flush() |
65
d40cc5aacc31
Fix up a bunch of bugs in the new merge code
mpm@selenic.com
parents:
64
diff
changeset
|
1190 text = self.revision(chain) |
73 | 1191 text = self.patches(text, [delta]) |
3390
a74addddd092
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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diff
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|
1192 chk = self._addrevision(text, transaction, link, p1, p2, None, |
a74addddd092
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diff
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|
1193 ifh, dfh) |
a74addddd092
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|
1194 if not dfh and not self.inlinedata(): |
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parents:
3360
diff
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|
1195 # addrevision switched from inline to conventional |
a74addddd092
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1196 # reopen the index |
a74addddd092
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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diff
changeset
|
1197 dfh = self.opener(self.datafile, "a") |
a74addddd092
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parents:
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diff
changeset
|
1198 ifh = self.opener(self.indexfile, "a") |
46 | 1199 if chk != node: |
1402
9d2c2e6b32b5
i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1400
diff
changeset
|
1200 raise RevlogError(_("consistency error adding group")) |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1201 textlen = len(text) |
46 | 1202 else: |
2142
8a1e2a9c7013
Replaced 0 with REVLOGV0 where this meaning is used.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
2141
diff
changeset
|
1203 if self.version == REVLOGV0: |
2072 | 1204 e = (end, len(cdelta), base, link, p1, p2, node) |
1205 else: | |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1206 e = (self.offset_type(end, 0), len(cdelta), textlen, base, |
2072 | 1207 link, self.rev(p1), self.rev(p2), node) |
46 | 1208 self.index.append(e) |
1209 self.nodemap[node] = r | |
2073 | 1210 if self.inlinedata(): |
1211 ifh.write(struct.pack(self.indexformat, *e)) | |
1212 ifh.write(cdelta) | |
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
1213 self.checkinlinesize(transaction, ifh) |
2073 | 1214 if not self.inlinedata(): |
1215 dfh = self.opener(self.datafile, "a") | |
1216 ifh = self.opener(self.indexfile, "a") | |
1217 else: | |
1218 dfh.write(cdelta) | |
1219 ifh.write(struct.pack(self.indexformat, *e)) | |
46 | 1220 |
65
d40cc5aacc31
Fix up a bunch of bugs in the new merge code
mpm@selenic.com
parents:
64
diff
changeset
|
1221 t, r, chain, prev = r, r + 1, node, node |
1749
d457fec76ab0
fix warnings from pychecker (unused variables and shadowing)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1711
diff
changeset
|
1222 base = self.base(t) |
d457fec76ab0
fix warnings from pychecker (unused variables and shadowing)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1711
diff
changeset
|
1223 start = self.start(base) |
46 | 1224 end = self.end(t) |
1225 | |
1226 return node | |
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1227 |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1228 def strip(self, rev, minlink): |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1229 if self.count() == 0 or rev >= self.count(): |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
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1533
diff
changeset
|
1230 return |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1231 |
2072 | 1232 if isinstance(self.index, lazyindex): |
1233 self.loadindexmap() | |
1234 | |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1235 # When stripping away a revision, we need to make sure it |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1236 # does not actually belong to an older changeset. |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1237 # The minlink parameter defines the oldest revision |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1238 # we're allowed to strip away. |
2072 | 1239 while minlink > self.index[rev][-4]: |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1240 rev += 1 |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
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diff
changeset
|
1241 if rev >= self.count(): |
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diff
changeset
|
1242 return |
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Add revlog.strip to truncate away revisions.
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diff
changeset
|
1243 |
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Add revlog.strip to truncate away revisions.
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changeset
|
1244 # first truncate the files on disk |
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Add revlog.strip to truncate away revisions.
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diff
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1245 end = self.start(rev) |
2073 | 1246 if not self.inlinedata(): |
1247 df = self.opener(self.datafile, "a") | |
1248 df.truncate(end) | |
1249 end = rev * struct.calcsize(self.indexformat) | |
1250 else: | |
1251 end += rev * struct.calcsize(self.indexformat) | |
2072 | 1252 |
1253 indexf = self.opener(self.indexfile, "a") | |
1254 indexf.truncate(end) | |
1535
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|
1255 |
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1256 # then reset internal state in memory to forget those revisions |
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1257 self.cache = None |
1711 | 1258 self.chunkcache = None |
2072 | 1259 for x in xrange(rev, self.count()): |
1260 del self.nodemap[self.node(x)] | |
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1261 |
2072 | 1262 del self.index[rev:] |
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1263 |
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
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diff
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|
1264 def checksize(self): |
1a216cb4ee64
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diff
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1265 expected = 0 |
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diff
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|
1266 if self.count(): |
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diff
changeset
|
1267 expected = self.end(self.count() - 1) |
1667
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diff
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|
1268 |
1494
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1269 try: |
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1270 f = self.opener(self.datafile) |
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1271 f.seek(0, 2) |
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1272 actual = f.tell() |
1667
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1273 dd = actual - expected |
1494
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1274 except IOError, inst: |
1667
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diff
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|
1275 if inst.errno != errno.ENOENT: |
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|
1276 raise |
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|
1277 dd = 0 |
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|
1278 |
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|
1279 try: |
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1280 f = self.opener(self.indexfile) |
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|
1281 f.seek(0, 2) |
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|
1282 actual = f.tell() |
2072 | 1283 s = struct.calcsize(self.indexformat) |
1667
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1284 i = actual / s |
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1285 di = actual - (i * s) |
2073 | 1286 if self.inlinedata(): |
1287 databytes = 0 | |
1288 for r in xrange(self.count()): | |
1289 databytes += self.length(r) | |
1290 dd = 0 | |
1291 di = actual - self.count() * s - databytes | |
1667
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|
1292 except IOError, inst: |
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|
1293 if inst.errno != errno.ENOENT: |
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diff
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|
1294 raise |
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|
1295 di = 0 |
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|
1296 |
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diff
changeset
|
1297 return (dd, di) |
1494
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|
1298 |
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diff
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|
1299 |