Mercurial > hg
annotate mercurial/revlog.py @ 7787:b8d750daadde
Introduce HG_PREPEND to solve pretxn races
- add writepending to flush delayed writes to separate file
- add support in hooks for lazy evaluation of callable parameters
- add HG_PENDING to pretxn hooks
- call writepending if hook is used
- pass repo root to hook environment
- if HG_PENDING = repo root, we're in pretxn hook
- read pending data to make pending changesets visible
- filter HG_PENDING in tests/printenv.py
author | Matt Mackall <mpm@selenic.com> |
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date | Mon, 16 Feb 2009 19:35:07 -0600 |
parents | 08cabecfa8a8 |
children | 4a4c7f6a5912 baaa832fd253 |
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 | |
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7 Copyright 2005-2007 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 |
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13 from node import bin, hex, nullid, nullrev, short |
3891 | 14 from i18n import _ |
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15 import changegroup, errno, ancestor, mdiff, parsers |
7633 | 16 import struct, util, zlib, error |
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17 |
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18 _pack = struct.pack |
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19 _unpack = struct.unpack |
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20 _compress = zlib.compress |
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21 _decompress = zlib.decompress |
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22 _sha = util.sha1 |
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23 |
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24 # revlog flags |
2072 | 25 REVLOGV0 = 0 |
26 REVLOGNG = 1 | |
2073 | 27 REVLOGNGINLINEDATA = (1 << 16) |
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28 REVLOG_DEFAULT_FLAGS = REVLOGNGINLINEDATA |
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29 REVLOG_DEFAULT_FORMAT = REVLOGNG |
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30 REVLOG_DEFAULT_VERSION = REVLOG_DEFAULT_FORMAT | REVLOG_DEFAULT_FLAGS |
2073 | 31 |
7633 | 32 RevlogError = error.RevlogError |
33 LookupError = error.LookupError | |
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34 |
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35 def getoffset(q): |
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36 return int(q >> 16) |
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37 |
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38 def gettype(q): |
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39 return int(q & 0xFFFF) |
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40 |
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41 def offset_type(offset, type): |
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42 return long(long(offset) << 16 | type) |
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43 |
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44 def hash(text, p1, p2): |
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45 """generate a hash from the given text and its parent hashes |
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46 |
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47 This hash combines both the current file contents and its history |
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48 in a manner that makes it easy to distinguish nodes with the same |
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49 content in the revision graph. |
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50 """ |
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51 l = [p1, p2] |
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52 l.sort() |
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53 s = _sha(l[0]) |
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54 s.update(l[1]) |
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55 s.update(text) |
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56 return s.digest() |
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57 |
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58 def compress(text): |
1083 | 59 """ generate a possibly-compressed representation of text """ |
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60 if not text: |
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61 return ("", text) |
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62 l = len(text) |
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63 bin = None |
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64 if l < 44: |
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65 pass |
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66 elif l > 1000000: |
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67 # zlib makes an internal copy, thus doubling memory usage for |
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68 # large files, so lets do this in pieces |
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69 z = zlib.compressobj() |
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70 p = [] |
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71 pos = 0 |
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72 while pos < l: |
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73 pos2 = pos + 2**20 |
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74 p.append(z.compress(text[pos:pos2])) |
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75 pos = pos2 |
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76 p.append(z.flush()) |
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77 if sum(map(len, p)) < l: |
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78 bin = "".join(p) |
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79 else: |
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80 bin = _compress(text) |
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81 if bin is None or len(bin) > l: |
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82 if text[0] == '\0': |
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83 return ("", text) |
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84 return ('u', text) |
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85 return ("", bin) |
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86 |
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87 def decompress(bin): |
1083 | 88 """ decompress the given input """ |
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89 if not bin: |
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90 return bin |
112 | 91 t = bin[0] |
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92 if t == '\0': |
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93 return bin |
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94 if t == 'x': |
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95 return _decompress(bin) |
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96 if t == 'u': |
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97 return bin[1:] |
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98 raise RevlogError(_("unknown compression type %r") % t) |
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99 |
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100 class lazyparser(object): |
1083 | 101 """ |
102 this class avoids the need to parse the entirety of large indices | |
103 """ | |
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104 |
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105 # lazyparser is not safe to use on windows if win32 extensions not |
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106 # available. it keeps file handle open, which make it not possible |
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107 # to break hardlinks on local cloned repos. |
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108 |
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109 def __init__(self, dataf, size): |
2079 | 110 self.dataf = dataf |
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111 self.s = struct.calcsize(indexformatng) |
2079 | 112 self.datasize = size |
113 self.l = size/self.s | |
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114 self.index = [None] * self.l |
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115 self.map = {nullid: nullrev} |
2079 | 116 self.allmap = 0 |
323 | 117 self.all = 0 |
2079 | 118 self.mapfind_count = 0 |
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119 |
2079 | 120 def loadmap(self): |
121 """ | |
122 during a commit, we need to make sure the rev being added is | |
123 not a duplicate. This requires loading the entire index, | |
124 which is fairly slow. loadmap can load up just the node map, | |
125 which takes much less time. | |
126 """ | |
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127 if self.allmap: |
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128 return |
2079 | 129 end = self.datasize |
130 self.allmap = 1 | |
131 cur = 0 | |
132 count = 0 | |
133 blocksize = self.s * 256 | |
134 self.dataf.seek(0) | |
135 while cur < end: | |
136 data = self.dataf.read(blocksize) | |
137 off = 0 | |
138 for x in xrange(256): | |
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139 n = data[off + ngshaoffset:off + ngshaoffset + 20] |
2079 | 140 self.map[n] = count |
141 count += 1 | |
142 if count >= self.l: | |
143 break | |
144 off += self.s | |
145 cur += blocksize | |
146 | |
147 def loadblock(self, blockstart, blocksize, data=None): | |
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148 if self.all: |
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149 return |
2079 | 150 if data is None: |
151 self.dataf.seek(blockstart) | |
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152 if blockstart + blocksize > self.datasize: |
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153 # the revlog may have grown since we've started running, |
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154 # but we don't have space in self.index for more entries. |
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155 # limit blocksize so that we don't get too much data. |
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156 blocksize = max(self.datasize - blockstart, 0) |
2079 | 157 data = self.dataf.read(blocksize) |
158 lend = len(data) / self.s | |
159 i = blockstart / self.s | |
160 off = 0 | |
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161 # lazyindex supports __delitem__ |
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162 if lend > len(self.index) - i: |
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163 lend = len(self.index) - i |
2079 | 164 for x in xrange(lend): |
165 if self.index[i + x] == None: | |
166 b = data[off : off + self.s] | |
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167 self.index[i + x] = b |
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168 n = b[ngshaoffset:ngshaoffset + 20] |
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169 self.map[n] = i + x |
2079 | 170 off += self.s |
171 | |
172 def findnode(self, node): | |
173 """search backwards through the index file for a specific node""" | |
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174 if self.allmap: |
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175 return None |
2079 | 176 |
177 # hg log will cause many many searches for the manifest | |
178 # nodes. After we get called a few times, just load the whole | |
179 # thing. | |
180 if self.mapfind_count > 8: | |
181 self.loadmap() | |
182 if node in self.map: | |
183 return node | |
184 return None | |
185 self.mapfind_count += 1 | |
186 last = self.l - 1 | |
187 while self.index[last] != None: | |
188 if last == 0: | |
189 self.all = 1 | |
190 self.allmap = 1 | |
191 return None | |
192 last -= 1 | |
193 end = (last + 1) * self.s | |
194 blocksize = self.s * 256 | |
195 while end >= 0: | |
196 start = max(end - blocksize, 0) | |
197 self.dataf.seek(start) | |
198 data = self.dataf.read(end - start) | |
199 findend = end - start | |
200 while True: | |
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201 # we're searching backwards, so we have to make sure |
2079 | 202 # we don't find a changeset where this node is a parent |
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203 off = data.find(node, 0, findend) |
2079 | 204 findend = off |
205 if off >= 0: | |
206 i = off / self.s | |
207 off = i * self.s | |
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208 n = data[off + ngshaoffset:off + ngshaoffset + 20] |
2079 | 209 if n == node: |
210 self.map[n] = i + start / self.s | |
211 return node | |
212 else: | |
213 break | |
214 end -= blocksize | |
215 return None | |
216 | |
217 def loadindex(self, i=None, end=None): | |
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218 if self.all: |
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219 return |
2079 | 220 all = False |
221 if i == None: | |
222 blockstart = 0 | |
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223 blocksize = (65536 / self.s) * self.s |
2079 | 224 end = self.datasize |
225 all = True | |
323 | 226 else: |
2079 | 227 if end: |
228 blockstart = i * self.s | |
229 end = end * self.s | |
230 blocksize = end - blockstart | |
231 else: | |
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232 blockstart = (i & ~1023) * self.s |
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|
233 blocksize = self.s * 1024 |
2079 | 234 end = blockstart + blocksize |
235 while blockstart < end: | |
236 self.loadblock(blockstart, blocksize) | |
237 blockstart += blocksize | |
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238 if all: |
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239 self.all = True |
515 | 240 |
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241 class lazyindex(object): |
1083 | 242 """a lazy version of the index array""" |
76
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243 def __init__(self, parser): |
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244 self.p = parser |
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245 def __len__(self): |
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246 return len(self.p.index) |
115 | 247 def load(self, pos): |
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248 if pos < 0: |
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249 pos += len(self.p.index) |
2079 | 250 self.p.loadindex(pos) |
115 | 251 return self.p.index[pos] |
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252 def __getitem__(self, pos): |
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253 return _unpack(indexformatng, self.p.index[pos] or self.load(pos)) |
2072 | 254 def __setitem__(self, pos, item): |
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255 self.p.index[pos] = _pack(indexformatng, *item) |
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256 def __delitem__(self, pos): |
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257 del self.p.index[pos] |
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258 def insert(self, pos, e): |
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259 self.p.index.insert(pos, _pack(indexformatng, *e)) |
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260 def append(self, e): |
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261 self.p.index.append(_pack(indexformatng, *e)) |
515 | 262 |
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263 class lazymap(object): |
1083 | 264 """a lazy version of the node map""" |
76
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265 def __init__(self, parser): |
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266 self.p = parser |
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267 def load(self, key): |
2079 | 268 n = self.p.findnode(key) |
269 if n == None: | |
1214 | 270 raise KeyError(key) |
76
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271 def __contains__(self, key): |
2079 | 272 if key in self.p.map: |
273 return True | |
274 self.p.loadmap() | |
323 | 275 return key in self.p.map |
97 | 276 def __iter__(self): |
469 | 277 yield nullid |
97 | 278 for i in xrange(self.p.l): |
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279 ret = self.p.index[i] |
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|
280 if not ret: |
2079 | 281 self.p.loadindex(i) |
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282 ret = self.p.index[i] |
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diff
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283 if isinstance(ret, str): |
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284 ret = _unpack(indexformatng, ret) |
4978
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285 yield ret[7] |
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286 def __getitem__(self, key): |
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287 try: |
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288 return self.p.map[key] |
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289 except KeyError: |
86
1b945e8ba67b
Friendlier exceptions for unknown node errors
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diff
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|
290 try: |
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|
291 self.load(key) |
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|
292 return self.p.map[key] |
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|
293 except KeyError: |
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diff
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|
294 raise KeyError("node " + hex(key)) |
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295 def __setitem__(self, key, val): |
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|
296 self.p.map[key] = val |
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297 def __delitem__(self, key): |
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298 del self.p.map[key] |
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299 |
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300 indexformatv0 = ">4l20s20s20s" |
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|
301 v0shaoffset = 56 |
4918
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|
302 |
4972
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diff
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|
303 class revlogoldio(object): |
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diff
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|
304 def __init__(self): |
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4976
diff
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|
305 self.size = struct.calcsize(indexformatv0) |
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|
306 |
4985
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diff
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|
307 def parseindex(self, fp, inline): |
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diff
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|
308 s = self.size |
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diff
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|
309 index = [] |
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diff
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|
310 nodemap = {nullid: nullrev} |
4973
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diff
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|
311 n = off = 0 |
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diff
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|
312 data = fp.read() |
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diff
changeset
|
313 l = len(data) |
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diff
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|
314 while off + s <= l: |
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diff
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|
315 cur = data[off:off + s] |
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diff
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|
316 off += s |
5007
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|
317 e = _unpack(indexformatv0, cur) |
4977
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|
318 # transform to revlogv1 format |
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diff
changeset
|
319 e2 = (offset_type(e[0], 0), e[1], -1, e[2], e[3], |
5544
686899a7de5b
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diff
changeset
|
320 nodemap.get(e[4], nullrev), nodemap.get(e[5], nullrev), e[6]) |
4977
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|
321 index.append(e2) |
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changeset
|
322 nodemap[e[6]] = n |
4973
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diff
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|
323 n += 1 |
4972
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diff
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|
324 |
4983
4dbcfc6e359e
revlog: pull chunkcache back into revlog
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4982
diff
changeset
|
325 return index, nodemap, None |
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|
326 |
5338
f87685355c9c
revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5325
diff
changeset
|
327 def packentry(self, entry, node, version, rev): |
4986
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diff
changeset
|
328 e2 = (getoffset(entry[0]), entry[1], entry[3], entry[4], |
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|
329 node(entry[5]), node(entry[6]), entry[7]) |
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|
330 return _pack(indexformatv0, *e2) |
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|
331 |
4987
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|
332 # index ng: |
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diff
changeset
|
333 # 6 bytes offset |
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diff
changeset
|
334 # 2 bytes flags |
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diff
changeset
|
335 # 4 bytes compressed length |
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diff
changeset
|
336 # 4 bytes uncompressed length |
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diff
changeset
|
337 # 4 bytes: base rev |
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changeset
|
338 # 4 bytes link rev |
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diff
changeset
|
339 # 4 bytes parent 1 rev |
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diff
changeset
|
340 # 4 bytes parent 2 rev |
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diff
changeset
|
341 # 32 bytes: nodeid |
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changeset
|
342 indexformatng = ">Qiiiiii20s12x" |
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diff
changeset
|
343 ngshaoffset = 32 |
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diff
changeset
|
344 versionformat = ">I" |
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changeset
|
345 |
4972
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changeset
|
346 class revlogio(object): |
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changeset
|
347 def __init__(self): |
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|
348 self.size = struct.calcsize(indexformatng) |
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349 |
4985
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|
350 def parseindex(self, fp, inline): |
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351 try: |
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|
352 size = util.fstat(fp).st_size |
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|
353 except AttributeError: |
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changeset
|
354 size = 0 |
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diff
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|
355 |
5659
3da652f2039c
util: get rid of is_win_9x wart
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5558
diff
changeset
|
356 if util.openhardlinks() and not inline and size > 1000000: |
4972
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changeset
|
357 # big index, let's parse it on demand |
4985
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358 parser = lazyparser(fp, size) |
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359 index = lazyindex(parser) |
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360 nodemap = lazymap(parser) |
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361 e = list(index[0]) |
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362 type = gettype(e[0]) |
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363 e[0] = offset_type(0, type) |
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364 index[0] = e |
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365 return index, nodemap, None |
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366 |
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367 data = fp.read() |
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368 # call the C implementation to parse the index data |
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369 index, nodemap, cache = parsers.parse_index(data, inline) |
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370 return index, nodemap, cache |
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371 |
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372 def packentry(self, entry, node, version, rev): |
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373 p = _pack(indexformatng, *entry) |
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374 if rev == 0: |
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375 p = _pack(versionformat, version) + p[4:] |
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376 return p |
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377 |
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378 class revlog(object): |
1083 | 379 """ |
380 the underlying revision storage object | |
381 | |
382 A revlog consists of two parts, an index and the revision data. | |
383 | |
384 The index is a file with a fixed record size containing | |
6912 | 385 information on each revision, including its nodeid (hash), the |
1083 | 386 nodeids of its parents, the position and offset of its data within |
387 the data file, and the revision it's based on. Finally, each entry | |
388 contains a linkrev entry that can serve as a pointer to external | |
389 data. | |
390 | |
391 The revision data itself is a linear collection of data chunks. | |
392 Each chunk represents a revision and is usually represented as a | |
393 delta against the previous chunk. To bound lookup time, runs of | |
394 deltas are limited to about 2 times the length of the original | |
395 version data. This makes retrieval of a version proportional to | |
396 its size, or O(1) relative to the number of revisions. | |
397 | |
398 Both pieces of the revlog are written to in an append-only | |
399 fashion, which means we never need to rewrite a file to insert or | |
400 remove data, and can use some simple techniques to avoid the need | |
401 for locking while reading. | |
402 """ | |
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403 def __init__(self, opener, indexfile): |
1083 | 404 """ |
405 create a revlog object | |
406 | |
407 opener is a function that abstracts the file opening operation | |
408 and can be used to implement COW semantics or the like. | |
409 """ | |
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410 self.indexfile = indexfile |
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411 self.datafile = indexfile[:-2] + ".d" |
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412 self.opener = opener |
4984 | 413 self._cache = None |
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414 self._chunkcache = None |
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415 self.nodemap = {nullid: nullrev} |
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416 self.index = [] |
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417 |
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418 v = REVLOG_DEFAULT_VERSION |
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419 if hasattr(opener, "defversion"): |
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420 v = opener.defversion |
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421 if v & REVLOGNG: |
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422 v |= REVLOGNGINLINEDATA |
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423 |
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424 i = "" |
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425 try: |
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426 f = self.opener(self.indexfile) |
2079 | 427 i = f.read(4) |
428 f.seek(0) | |
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429 if len(i) > 0: |
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430 v = struct.unpack(versionformat, i)[0] |
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431 except IOError, inst: |
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432 if inst.errno != errno.ENOENT: |
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433 raise |
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434 |
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435 self.version = v |
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436 self._inline = v & REVLOGNGINLINEDATA |
2073 | 437 flags = v & ~0xFFFF |
438 fmt = v & 0xFFFF | |
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439 if fmt == REVLOGV0 and flags: |
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440 raise RevlogError(_("index %s unknown flags %#04x for format v0") |
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441 % (self.indexfile, flags >> 16)) |
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442 elif fmt == REVLOGNG and flags & ~REVLOGNGINLINEDATA: |
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443 raise RevlogError(_("index %s unknown flags %#04x for revlogng") |
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444 % (self.indexfile, flags >> 16)) |
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445 elif fmt > REVLOGNG: |
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446 raise RevlogError(_("index %s unknown format %d") |
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447 % (self.indexfile, fmt)) |
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448 |
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449 self._io = revlogio() |
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450 if self.version == REVLOGV0: |
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451 self._io = revlogoldio() |
2072 | 452 if i: |
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453 d = self._io.parseindex(f, self._inline) |
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454 self.index, self.nodemap, self._chunkcache = d |
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455 |
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456 # add the magic null revision at -1 (if it hasn't been done already) |
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457 if (self.index == [] or isinstance(self.index, lazyindex) or |
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458 self.index[-1][7] != nullid) : |
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459 self.index.append((0, 0, 0, -1, -1, -1, -1, nullid)) |
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460 |
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461 def _loadindex(self, start, end): |
2079 | 462 """load a block of indexes all at once from the lazy parser""" |
463 if isinstance(self.index, lazyindex): | |
464 self.index.p.loadindex(start, end) | |
465 | |
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466 def _loadindexmap(self): |
2072 | 467 """loads both the map and the index from the lazy parser""" |
468 if isinstance(self.index, lazyindex): | |
469 p = self.index.p | |
2079 | 470 p.loadindex() |
471 self.nodemap = p.map | |
472 | |
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473 def _loadmap(self): |
2079 | 474 """loads the map from the lazy parser""" |
475 if isinstance(self.nodemap, lazymap): | |
476 self.nodemap.p.loadmap() | |
477 self.nodemap = self.nodemap.p.map | |
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478 |
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479 def tip(self): |
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480 return self.node(len(self.index) - 2) |
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481 def __len__(self): |
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482 return len(self.index) - 1 |
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483 def __iter__(self): |
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484 for i in xrange(len(self)): |
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485 yield i |
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486 def rev(self, node): |
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487 try: |
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488 return self.nodemap[node] |
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489 except KeyError: |
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490 raise LookupError(node, self.indexfile, _('no node')) |
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491 def node(self, rev): |
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492 return self.index[rev][7] |
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493 def linkrev(self, rev): |
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494 return self.index[rev][4] |
2 | 495 def parents(self, node): |
7363 | 496 i = self.index |
497 d = i[self.rev(node)] | |
498 return i[d[5]][7], i[d[6]][7] # map revisions to nodes inline | |
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499 def parentrevs(self, rev): |
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500 return self.index[rev][5:7] |
2072 | 501 def start(self, rev): |
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502 return int(self.index[rev][0] >> 16) |
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503 def end(self, rev): |
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504 return self.start(rev) + self.length(rev) |
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505 def length(self, rev): |
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506 return self.index[rev][1] |
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507 def base(self, rev): |
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508 return self.index[rev][3] |
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509 |
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510 def size(self, rev): |
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511 """return the length of the uncompressed text for a given revision""" |
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512 l = self.index[rev][2] |
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513 if l >= 0: |
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514 return l |
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515 |
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516 t = self.revision(self.node(rev)) |
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517 return len(t) |
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518 |
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519 # alternate implementation, The advantage to this code is it |
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520 # will be faster for a single revision. But, the results are not |
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521 # cached, so finding the size of every revision will be slower. |
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|
522 """ |
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523 if self.cache and self.cache[1] == rev: |
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524 return len(self.cache[2]) |
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525 |
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526 base = self.base(rev) |
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527 if self.cache and self.cache[1] >= base and self.cache[1] < rev: |
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528 base = self.cache[1] |
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529 text = self.cache[2] |
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530 else: |
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531 text = self.revision(self.node(base)) |
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532 |
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533 l = len(text) |
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534 for x in xrange(base + 1, rev + 1): |
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535 l = mdiff.patchedsize(l, self.chunk(x)) |
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536 return l |
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537 """ |
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538 |
3630
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539 def reachable(self, node, stop=None): |
3683 | 540 """return a hash of all nodes ancestral to a given node, including |
541 the node itself, stopping when stop is matched""" | |
1074
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542 reachable = {} |
3630
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543 visit = [node] |
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544 reachable[node] = 1 |
1074
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545 if stop: |
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546 stopn = self.rev(stop) |
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547 else: |
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548 stopn = 0 |
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549 while visit: |
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550 n = visit.pop(0) |
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551 if n == stop: |
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552 continue |
55bf5cfde69e
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553 if n == nullid: |
55bf5cfde69e
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|
554 continue |
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|
555 for p in self.parents(n): |
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556 if self.rev(p) < stopn: |
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557 continue |
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558 if p not in reachable: |
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559 reachable[p] = 1 |
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560 visit.append(p) |
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561 return reachable |
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|
562 |
6872
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563 def ancestors(self, *revs): |
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564 'Generate the ancestors of revs using a breadth-first visit' |
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565 visit = list(revs) |
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566 seen = util.set([nullrev]) |
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567 while visit: |
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568 for parent in self.parentrevs(visit.pop(0)): |
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569 if parent not in seen: |
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570 visit.append(parent) |
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571 seen.add(parent) |
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572 yield parent |
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573 |
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574 def descendants(self, *revs): |
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575 'Generate the descendants of revs in topological order' |
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576 seen = util.set(revs) |
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577 for i in xrange(min(revs) + 1, len(self)): |
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578 for x in self.parentrevs(i): |
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579 if x != nullrev and x in seen: |
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580 seen.add(i) |
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|
581 yield i |
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|
582 break |
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|
583 |
7233
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|
584 def findmissing(self, common=None, heads=None): |
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585 ''' |
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586 returns the topologically sorted list of nodes from the set: |
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587 missing = (ancestors(heads) \ ancestors(common)) |
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|
588 |
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fix pull racing with push/commit (issue1320)
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|
589 where ancestors() is the set of ancestors from heads, heads included |
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|
590 |
9f0e52e1df77
fix pull racing with push/commit (issue1320)
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changeset
|
591 if heads is None, the heads of the revlog are used |
9f0e52e1df77
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|
592 if common is None, nullid is assumed to be a common node |
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593 ''' |
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|
594 if common is None: |
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fix pull racing with push/commit (issue1320)
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|
595 common = [nullid] |
9f0e52e1df77
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|
596 if heads is None: |
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597 heads = self.heads() |
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|
598 |
9f0e52e1df77
fix pull racing with push/commit (issue1320)
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changeset
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599 common = [self.rev(n) for n in common] |
9f0e52e1df77
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diff
changeset
|
600 heads = [self.rev(n) for n in heads] |
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changeset
|
601 |
9f0e52e1df77
fix pull racing with push/commit (issue1320)
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diff
changeset
|
602 # we want the ancestors, but inclusive |
9f0e52e1df77
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|
603 has = dict.fromkeys(self.ancestors(*common)) |
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diff
changeset
|
604 has[nullrev] = None |
9f0e52e1df77
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diff
changeset
|
605 for r in common: |
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changeset
|
606 has[r] = None |
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changeset
|
607 |
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|
608 # take all ancestors from heads that aren't in has |
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|
609 missing = {} |
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610 visit = [r for r in heads if r not in has] |
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|
611 while visit: |
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612 r = visit.pop(0) |
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613 if r in missing: |
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|
614 continue |
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|
615 else: |
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616 missing[r] = None |
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617 for p in self.parentrevs(r): |
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618 if p not in has: |
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619 visit.append(p) |
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620 missing = missing.keys() |
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621 missing.sort() |
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622 return [self.node(r) for r in missing] |
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623 |
1457
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diff
changeset
|
624 def nodesbetween(self, roots=None, heads=None): |
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This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
625 """Return a tuple containing three elements. Elements 1 and 2 contain |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
626 a final list bases and heads after all the unreachable ones have been |
518da3c3b6ce
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diff
changeset
|
627 pruned. Element 0 contains a topologically sorted list of all |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
628 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
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diff
changeset
|
629 nodes that satisfy these constraints: |
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This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
630 1. All nodes must be descended from a node in roots (the nodes on |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
631 roots are considered descended from themselves). |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
632 2. All nodes must also be ancestors of a node in heads (the nodes in |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
633 heads are considered to be their own ancestors). |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
634 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
635 If roots is unspecified, nullid is assumed as the only root. |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
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1351
diff
changeset
|
636 If heads is unspecified, it is taken to be the output of the |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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diff
changeset
|
637 heads method (i.e. a list of all nodes in the repository that |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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changeset
|
638 have no children).""" |
1463
26e73acc0cdf
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639 nonodes = ([], [], []) |
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640 if roots is not None: |
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641 roots = list(roots) |
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Fix to handle case of empty list for roots or heads in nodesbetween.
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642 if not roots: |
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Fix to handle case of empty list for roots or heads in nodesbetween.
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643 return nonodes |
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644 lowestrev = min([self.rev(n) for n in roots]) |
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645 else: |
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646 roots = [nullid] # Everybody's a descendent of nullid |
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Define and use nullrev (revision of nullid) instead of -1.
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647 lowestrev = nullrev |
3b4e00cba57a
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648 if (lowestrev == nullrev) and (heads is None): |
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649 # We want _all_ the nodes! |
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add __len__ and __iter__ methods to repo and revlog
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650 return ([self.node(r) for r in self], [nullid], list(self.heads())) |
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651 if heads is None: |
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652 # All nodes are ancestors, so the latest ancestor is the last |
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653 # node. |
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654 highestrev = len(self) - 1 |
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655 # Set ancestors to None to signal that every node is an ancestor. |
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656 ancestors = None |
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657 # Set heads to an empty dictionary for later discovery of heads |
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658 heads = {} |
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659 else: |
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660 heads = list(heads) |
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661 if not heads: |
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662 return nonodes |
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663 ancestors = {} |
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664 # Turn heads into a dictionary so we can remove 'fake' heads. |
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665 # Also, later we will be using it to filter out the heads we can't |
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666 # find from roots. |
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667 heads = dict.fromkeys(heads, 0) |
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668 # Start at the top and keep marking parents until we're done. |
ef8307585b41
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669 nodestotag = heads.keys() |
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670 # Remember where the top was so we can use it as a limit later. |
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671 highestrev = max([self.rev(n) for n in nodestotag]) |
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672 while nodestotag: |
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673 # grab a node to tag |
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674 n = nodestotag.pop() |
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675 # Never tag nullid |
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676 if n == nullid: |
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677 continue |
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678 # A node's revision number represents its place in a |
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679 # topologically sorted list of nodes. |
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680 r = self.rev(n) |
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681 if r >= lowestrev: |
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682 if n not in ancestors: |
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683 # If we are possibly a descendent of one of the roots |
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684 # and we haven't already been marked as an ancestor |
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685 ancestors[n] = 1 # Mark as ancestor |
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686 # Add non-nullid parents to list of nodes to tag. |
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687 nodestotag.extend([p for p in self.parents(n) if |
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688 p != nullid]) |
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689 elif n in heads: # We've seen it before, is it a fake head? |
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690 # So it is, real heads should not be the ancestors of |
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691 # any other heads. |
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692 heads.pop(n) |
1459
106fdec8e1fb
Fix small bug in nodesbetween if heads is [nullid].
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|
693 if not ancestors: |
1463
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694 return nonodes |
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695 # Now that we have our set of ancestors, we want to remove any |
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696 # roots that are not ancestors. |
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|
697 |
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|
698 # If one of the roots was nullid, everything is included anyway. |
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
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diff
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|
699 if lowestrev > nullrev: |
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700 # But, since we weren't, let's recompute the lowest rev to not |
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|
701 # include roots that aren't ancestors. |
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|
702 |
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|
703 # Filter out roots that aren't ancestors of heads |
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This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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|
704 roots = [n for n in roots if n in ancestors] |
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|
705 # Recompute the lowest revision |
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|
706 if roots: |
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|
707 lowestrev = min([self.rev(n) for n in roots]) |
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Eric Hopper <hopper@omnifarious.org>
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|
708 else: |
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This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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|
709 # No more roots? Return empty list |
1463
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
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|
710 return nonodes |
1457
518da3c3b6ce
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|
711 else: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
712 # We are descending from nullid, and don't need to care about |
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This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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changeset
|
713 # any other roots. |
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3508
diff
changeset
|
714 lowestrev = nullrev |
1457
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
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|
715 roots = [nullid] |
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changeset
|
716 # Transform our roots list into a 'set' (i.e. a dictionary where the |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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|
717 # values don't matter. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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|
718 descendents = dict.fromkeys(roots, 1) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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diff
changeset
|
719 # Also, keep the original roots so we can filter out roots that aren't |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
720 # 'real' roots (i.e. are descended from other roots). |
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This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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changeset
|
721 roots = descendents.copy() |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
722 # Our topologically sorted list of output nodes. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
723 orderedout = [] |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
724 # Don't start at nullid since we don't want nullid in our output list, |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
725 # and if nullid shows up in descedents, empty parents will look like |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
726 # they're descendents. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
727 for r in xrange(max(lowestrev, 0), highestrev + 1): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
728 n = self.node(r) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
729 isdescendent = False |
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3508
diff
changeset
|
730 if lowestrev == nullrev: # Everybody is a descendent of nullid |
1457
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
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diff
changeset
|
731 isdescendent = True |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
732 elif n in descendents: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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diff
changeset
|
733 # n is already a descendent |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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diff
changeset
|
734 isdescendent = True |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
735 # This check only needs to be done here because all the roots |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
736 # will start being marked is descendents before the loop. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
737 if n in roots: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
738 # If n was a root, check if it's a 'real' root. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
739 p = tuple(self.parents(n)) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
740 # If any of its parents are descendents, it's not a root. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
741 if (p[0] in descendents) or (p[1] in descendents): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
742 roots.pop(n) |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
743 else: |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
744 p = tuple(self.parents(n)) |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
745 # A node is a descendent if either of its parents are |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
746 # descendents. (We seeded the dependents list with the roots |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
747 # up there, remember?) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
748 if (p[0] in descendents) or (p[1] in descendents): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
749 descendents[n] = 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
750 isdescendent = True |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
751 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
|
752 # 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
|
753 orderedout.append(n) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
754 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
|
755 # 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
|
756 # from roots. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
757 # 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
|
758 heads[n] = 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
759 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
|
760 # 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
|
761 # 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
|
762 # 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
|
763 heads[n] = 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
764 # 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
|
765 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
|
766 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
|
767 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
|
768 roots = roots.keys() |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
769 assert orderedout |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
770 assert roots |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
771 assert heads |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
772 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
|
773 |
3923
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
774 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
|
775 """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
|
776 |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
777 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
|
778 start will be returned |
3923
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
779 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
|
780 as if they had no children |
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
781 """ |
4991
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
782 if start is None and stop is None: |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
783 count = len(self) |
4991
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
784 if not count: |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
785 return [nullid] |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
786 ishead = [1] * (count + 1) |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
787 index = self.index |
7089
c57b30f1bc15
revlog: fix heads performance regression
Matt Mackall <mpm@selenic.com>
parents:
7062
diff
changeset
|
788 for r in xrange(count): |
4991
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
789 e = index[r] |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
790 ishead[e[5]] = ishead[e[6]] = 0 |
7089
c57b30f1bc15
revlog: fix heads performance regression
Matt Mackall <mpm@selenic.com>
parents:
7062
diff
changeset
|
791 return [self.node(r) for r in xrange(count) if ishead[r]] |
4991
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
792 |
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
793 if start is None: |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
794 start = nullid |
3923
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
795 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
|
796 stop = [] |
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
797 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
|
798 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
|
799 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
|
800 heads = {startrev: 1} |
1083 | 801 |
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
|
802 parentrevs = self.parentrevs |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
803 for r in xrange(startrev + 1, len(self)): |
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
|
804 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
|
805 if p in reachable: |
3923
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
806 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
|
807 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
|
808 heads[r] = 1 |
3923
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
809 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
|
810 del heads[p] |
3923
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
811 |
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
|
812 return [self.node(r) for r in heads] |
370 | 813 |
814 def children(self, node): | |
1083 | 815 """find the children of a given node""" |
370 | 816 c = [] |
817 p = self.rev(node) | |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
818 for r in range(p + 1, len(self)): |
4746
62c56d8f368b
Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4635
diff
changeset
|
819 prevs = [pr for pr in self.parentrevs(r) if pr != nullrev] |
62c56d8f368b
Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4635
diff
changeset
|
820 if prevs: |
62c56d8f368b
Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4635
diff
changeset
|
821 for pr in prevs: |
62c56d8f368b
Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4635
diff
changeset
|
822 if pr == p: |
62c56d8f368b
Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4635
diff
changeset
|
823 c.append(self.node(r)) |
62c56d8f368b
Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4635
diff
changeset
|
824 elif p == nullrev: |
62c56d8f368b
Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4635
diff
changeset
|
825 c.append(self.node(r)) |
370 | 826 return c |
515 | 827 |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
828 def _match(self, id): |
3210
7240f9e47144
correctly find the type of 'id' in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3157
diff
changeset
|
829 if isinstance(id, (long, int)): |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
830 # rev |
2641
156fb1feab62
lookup should allow -1 to represent nullid (if passed an int as arg)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
2600
diff
changeset
|
831 return self.node(id) |
3438 | 832 if len(id) == 20: |
833 # possibly a binary node | |
834 # odds of a binary node being all hex in ASCII are 1 in 10**25 | |
835 try: | |
836 node = id | |
837 r = self.rev(node) # quick search the index | |
838 return node | |
3930
01d98d68d697
Add revlog.LookupError exception, and use it instead of RevlogError.
Brendan Cully <brendan@kublai.com>
parents:
3928
diff
changeset
|
839 except LookupError: |
3438 | 840 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
|
841 try: |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
842 # str(rev) |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
843 rev = int(id) |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
844 if str(rev) != id: |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
845 raise ValueError |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
846 if rev < 0: |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
847 rev = len(self) + rev |
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
848 if rev < 0 or rev >= len(self): |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
849 raise ValueError |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
850 return self.node(rev) |
469 | 851 except (ValueError, OverflowError): |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
852 pass |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
853 if len(id) == 40: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
854 try: |
3438 | 855 # a full hex nodeid? |
856 node = bin(id) | |
857 r = self.rev(node) | |
3157
4fe41a9e4591
optimize revlog.lookup when passed hex(node)[:...]
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3156
diff
changeset
|
858 return node |
7062
efc579fdaf69
provide nicer feedback when an unknown node id is passed to a command
Sune Foldager <cryo@cyanite.org>
parents:
6912
diff
changeset
|
859 except (TypeError, LookupError): |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
860 pass |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
861 |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
862 def _partialmatch(self, id): |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
863 if len(id) < 40: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
864 try: |
3438 | 865 # hex(node)[:...] |
7365
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
866 l = len(id) / 2 # grab an even number of digits |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
867 bin_id = bin(id[:l*2]) |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
868 nl = [n for n in self.nodemap if n[:l] == bin_id] |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
869 nl = [n for n in nl if hex(n).startswith(id)] |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
870 if len(nl) > 0: |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
871 if len(nl) == 1: |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
872 return nl[0] |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
873 raise LookupError(id, self.indexfile, |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
874 _('ambiguous identifier')) |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
875 return None |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
876 except TypeError: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
877 pass |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
878 |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
879 def lookup(self, id): |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
880 """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
|
881 - 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
|
882 - 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
|
883 """ |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
884 n = self._match(id) |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
885 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
|
886 return n |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
887 n = self._partialmatch(id) |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
888 if n: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
889 return n |
515 | 890 |
6228
c0c4c7b1e8d3
revlog: report node and file when lookup fails
Matt Mackall <mpm@selenic.com>
parents:
6212
diff
changeset
|
891 raise LookupError(id, self.indexfile, _('no match found')) |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
892 |
2890
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
893 def cmp(self, node, text): |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
894 """compare text with a given file revision""" |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
895 p1, p2 = self.parents(node) |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
896 return hash(text, p1, p2) != node |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
897 |
4988
14486eea8e7a
revlog: speed up chunkcache
Matt Mackall <mpm@selenic.com>
parents:
4987
diff
changeset
|
898 def chunk(self, rev, df=None): |
2072 | 899 def loadcache(df): |
900 if not df: | |
4988
14486eea8e7a
revlog: speed up chunkcache
Matt Mackall <mpm@selenic.com>
parents:
4987
diff
changeset
|
901 if self._inline: |
2073 | 902 df = self.opener(self.indexfile) |
903 else: | |
904 df = self.opener(self.datafile) | |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
905 df.seek(start) |
4983
4dbcfc6e359e
revlog: pull chunkcache back into revlog
Matt Mackall <mpm@selenic.com>
parents:
4982
diff
changeset
|
906 self._chunkcache = (start, df.read(cache_length)) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
907 |
5006
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
908 start, length = self.start(rev), self.length(rev) |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
909 if self._inline: |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
910 start += (rev + 1) * self._io.size |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
911 end = start + length |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
912 |
5006
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
913 offset = 0 |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
914 if not self._chunkcache: |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
915 cache_length = max(65536, length) |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
916 loadcache(df) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
917 else: |
5006
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
918 cache_start = self._chunkcache[0] |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
919 cache_length = len(self._chunkcache[1]) |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
920 cache_end = cache_start + cache_length |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
921 if start >= cache_start and end <= cache_end: |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
922 # it is cached |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
923 offset = start - cache_start |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
924 else: |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
925 cache_length = max(65536, length) |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
926 loadcache(df) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
927 |
4988
14486eea8e7a
revlog: speed up chunkcache
Matt Mackall <mpm@selenic.com>
parents:
4987
diff
changeset
|
928 # avoid copying large chunks |
14486eea8e7a
revlog: speed up chunkcache
Matt Mackall <mpm@selenic.com>
parents:
4987
diff
changeset
|
929 c = self._chunkcache[1] |
5006
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
930 if cache_length != length: |
4988
14486eea8e7a
revlog: speed up chunkcache
Matt Mackall <mpm@selenic.com>
parents:
4987
diff
changeset
|
931 c = c[offset:offset + length] |
14486eea8e7a
revlog: speed up chunkcache
Matt Mackall <mpm@selenic.com>
parents:
4987
diff
changeset
|
932 |
14486eea8e7a
revlog: speed up chunkcache
Matt Mackall <mpm@selenic.com>
parents:
4987
diff
changeset
|
933 return decompress(c) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
934 |
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
935 def revdiff(self, rev1, rev2): |
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
936 """return or calculate a delta between two revisions""" |
5005
72082bfced9a
revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents:
5004
diff
changeset
|
937 if rev1 + 1 == rev2 and self.base(rev1) == self.base(rev2): |
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
938 return self.chunk(rev2) |
5005
72082bfced9a
revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents:
5004
diff
changeset
|
939 |
72082bfced9a
revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents:
5004
diff
changeset
|
940 return mdiff.textdiff(self.revision(self.node(rev1)), |
72082bfced9a
revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents:
5004
diff
changeset
|
941 self.revision(self.node(rev2))) |
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
942 |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
943 def revision(self, node): |
6912 | 944 """return an uncompressed revision of a given node""" |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
945 if node == nullid: |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
946 return "" |
4984 | 947 if self._cache and self._cache[0] == node: |
5450
c728424d44c6
revlog: fix caching of buffer objects
Matt Mackall <mpm@selenic.com>
parents:
5448
diff
changeset
|
948 return str(self._cache[2]) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
949 |
1083 | 950 # look up what we need to read |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
951 text = None |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
952 rev = self.rev(node) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
953 base = self.base(rev) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
954 |
5004
825516d16b25
revlog: move flag checking out of the offset fastpath
Matt Mackall <mpm@selenic.com>
parents:
4996
diff
changeset
|
955 # check rev flags |
825516d16b25
revlog: move flag checking out of the offset fastpath
Matt Mackall <mpm@selenic.com>
parents:
4996
diff
changeset
|
956 if self.index[rev][0] & 0xFFFF: |
5312
fb070713ff36
revlog: more robust for damaged indexes
Matt Mackall <mpm@selenic.com>
parents:
5007
diff
changeset
|
957 raise RevlogError(_('incompatible revision flag %x') % |
fb070713ff36
revlog: more robust for damaged indexes
Matt Mackall <mpm@selenic.com>
parents:
5007
diff
changeset
|
958 (self.index[rev][0] & 0xFFFF)) |
5004
825516d16b25
revlog: move flag checking out of the offset fastpath
Matt Mackall <mpm@selenic.com>
parents:
4996
diff
changeset
|
959 |
6144
08e0825b8106
revlog.revision: avoid opening the datafile without need.
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5910
diff
changeset
|
960 df = None |
2072 | 961 |
1083 | 962 # do we have useful data cached? |
4984 | 963 if self._cache and self._cache[1] >= base and self._cache[1] < rev: |
964 base = self._cache[1] | |
5450
c728424d44c6
revlog: fix caching of buffer objects
Matt Mackall <mpm@selenic.com>
parents:
5448
diff
changeset
|
965 text = str(self._cache[2]) |
4920
ee983d0dbea8
revlog: privatize some methods
Matt Mackall <mpm@selenic.com>
parents:
4919
diff
changeset
|
966 self._loadindex(base, rev + 1) |
6144
08e0825b8106
revlog.revision: avoid opening the datafile without need.
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5910
diff
changeset
|
967 if not self._inline and rev > base + 1: |
08e0825b8106
revlog.revision: avoid opening the datafile without need.
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5910
diff
changeset
|
968 df = self.opener(self.datafile) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
969 else: |
4920
ee983d0dbea8
revlog: privatize some methods
Matt Mackall <mpm@selenic.com>
parents:
4919
diff
changeset
|
970 self._loadindex(base, rev + 1) |
6144
08e0825b8106
revlog.revision: avoid opening the datafile without need.
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5910
diff
changeset
|
971 if not self._inline and rev > base: |
08e0825b8106
revlog.revision: avoid opening the datafile without need.
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5910
diff
changeset
|
972 df = self.opener(self.datafile) |
2072 | 973 text = self.chunk(base, df=df) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
974 |
4989
1aaed3d69772
revlog: eliminate diff and patches functions
Matt Mackall <mpm@selenic.com>
parents:
4988
diff
changeset
|
975 bins = [self.chunk(r, df) for r in xrange(base + 1, rev + 1)] |
1aaed3d69772
revlog: eliminate diff and patches functions
Matt Mackall <mpm@selenic.com>
parents:
4988
diff
changeset
|
976 text = mdiff.patches(text, bins) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
977 p1, p2 = self.parents(node) |
26 | 978 if node != hash(text, p1, p2): |
1402
9d2c2e6b32b5
i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1400
diff
changeset
|
979 raise RevlogError(_("integrity check failed on %s:%d") |
3680
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
980 % (self.datafile, rev)) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
981 |
4984 | 982 self._cache = (node, rev, text) |
515 | 983 return text |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
984 |
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
985 def checkinlinesize(self, tr, fp=None): |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
986 if not self._inline: |
2073 | 987 return |
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
988 if not fp: |
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
989 fp = self.opener(self.indexfile, 'r') |
2082
856f0ba200bc
Additional appendfile fixes for interleaved data/index files
mason@suse.com
parents:
2081
diff
changeset
|
990 fp.seek(0, 2) |
2073 | 991 size = fp.tell() |
992 if size < 131072: | |
993 return | |
2084 | 994 trinfo = tr.find(self.indexfile) |
995 if trinfo == None: | |
3680
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
996 raise RevlogError(_("%s not found in the transaction") |
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
997 % self.indexfile) |
2084 | 998 |
999 trindex = trinfo[2] | |
1000 dataoff = self.start(trindex) | |
1001 | |
1002 tr.add(self.datafile, dataoff) | |
2073 | 1003 df = self.opener(self.datafile, 'w') |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1004 try: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1005 calc = self._io.size |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1006 for r in self: |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1007 start = self.start(r) + (r + 1) * calc |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1008 length = self.length(r) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1009 fp.seek(start) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1010 d = fp.read(length) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1011 df.write(d) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1012 finally: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1013 df.close() |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1014 |
2073 | 1015 fp.close() |
2076
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
1016 fp = self.opener(self.indexfile, 'w', atomictemp=True) |
2073 | 1017 self.version &= ~(REVLOGNGINLINEDATA) |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1018 self._inline = False |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1019 for i in self: |
5338
f87685355c9c
revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5325
diff
changeset
|
1020 e = self._io.packentry(self.index[i], self.node, self.version, i) |
2073 | 1021 fp.write(e) |
1022 | |
2076
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
1023 # if we don't call rename, the temp file will never replace the |
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
1024 # real index |
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
1025 fp.rename() |
2084 | 1026 |
1027 tr.replace(self.indexfile, trindex * calc) | |
4983
4dbcfc6e359e
revlog: pull chunkcache back into revlog
Matt Mackall <mpm@selenic.com>
parents:
4982
diff
changeset
|
1028 self._chunkcache = None |
2073 | 1029 |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1030 def addrevision(self, text, transaction, link, p1, p2, d=None): |
1083 | 1031 """add a revision to the log |
1032 | |
1033 text - the revision data to add | |
1034 transaction - the transaction object used for rollback | |
1035 link - the linkrev data to add | |
1036 p1, p2 - the parent nodeids of the revision | |
1037 d - an optional precomputed delta | |
1038 """ | |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1039 dfh = None |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1040 if not self._inline: |
3390
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1041 dfh = self.opener(self.datafile, "a") |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1042 ifh = self.opener(self.indexfile, "a+") |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1043 try: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1044 return self._addrevision(text, transaction, link, p1, p2, d, ifh, dfh) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1045 finally: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1046 if dfh: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1047 dfh.close() |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1048 ifh.close() |
3390
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1049 |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1050 def _addrevision(self, text, transaction, link, p1, p2, d, ifh, dfh): |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1051 node = hash(text, p1, p2) |
301 | 1052 if node in self.nodemap: |
1053 return node | |
1054 | |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1055 curr = len(self) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1056 prev = curr - 1 |
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1057 base = self.base(prev) |
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1058 offset = self.end(prev) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1059 |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1060 if curr: |
644 | 1061 if not d: |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1062 ptext = self.revision(self.node(prev)) |
4989
1aaed3d69772
revlog: eliminate diff and patches functions
Matt Mackall <mpm@selenic.com>
parents:
4988
diff
changeset
|
1063 d = mdiff.textdiff(ptext, text) |
98 | 1064 data = compress(d) |
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
1065 l = len(data[1]) + len(data[0]) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1066 dist = l + offset - self.start(base) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1067 |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1068 # full versions are inserted when the needed deltas |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1069 # become comparable to the uncompressed text |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1070 if not curr or dist > len(text) * 2: |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1071 data = compress(text) |
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
1072 l = len(data[1]) + len(data[0]) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1073 base = curr |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1074 |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1075 e = (offset_type(offset, 0), l, len(text), |
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1076 base, link, self.rev(p1), self.rev(p2), node) |
4979
06abdaf78788
revlog: add a magic null revision to our index
Matt Mackall <mpm@selenic.com>
parents:
4978
diff
changeset
|
1077 self.index.insert(-1, e) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1078 self.nodemap[node] = curr |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1079 |
5338
f87685355c9c
revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5325
diff
changeset
|
1080 entry = self._io.packentry(e, self.node, self.version, curr) |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1081 if not self._inline: |
2073 | 1082 transaction.add(self.datafile, offset) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1083 transaction.add(self.indexfile, curr * len(entry)) |
2073 | 1084 if data[0]: |
3390
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1085 dfh.write(data[0]) |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1086 dfh.write(data[1]) |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1087 dfh.flush() |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1088 ifh.write(entry) |
2073 | 1089 else: |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1090 offset += curr * self._io.size |
5324
8409a2e3a78d
revlog: fix inlined revision transaction extra data (issue 749)
Patrick Mezard <pmezard@gmail.com>
parents:
5007
diff
changeset
|
1091 transaction.add(self.indexfile, offset, curr) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1092 ifh.write(entry) |
3390
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1093 ifh.write(data[0]) |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1094 ifh.write(data[1]) |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1095 self.checkinlinesize(transaction, ifh) |
2073 | 1096 |
4984 | 1097 self._cache = (node, curr, text) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1098 return node |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1099 |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1100 def ancestor(self, a, b): |
1083 | 1101 """calculate the least common ancestor of nodes a and b""" |
2081
416d8b2a75b8
Speedup revlog.ancestors for the linear case
Chris Mason <mason@suse.com>
parents:
2080
diff
changeset
|
1102 |
3139
1fd1cdcc4200
Switch revlog.ancestor to use revisions rather than nodeids
Matt Mackall <mpm@selenic.com>
parents:
3135
diff
changeset
|
1103 def parents(rev): |
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3508
diff
changeset
|
1104 return [p for p in self.parentrevs(rev) if p != nullrev] |
515 | 1105 |
3139
1fd1cdcc4200
Switch revlog.ancestor to use revisions rather than nodeids
Matt Mackall <mpm@selenic.com>
parents:
3135
diff
changeset
|
1106 c = ancestor.ancestor(self.rev(a), self.rev(b), parents) |
1fd1cdcc4200
Switch revlog.ancestor to use revisions rather than nodeids
Matt Mackall <mpm@selenic.com>
parents:
3135
diff
changeset
|
1107 if c is None: |
1fd1cdcc4200
Switch revlog.ancestor to use revisions rather than nodeids
Matt Mackall <mpm@selenic.com>
parents:
3135
diff
changeset
|
1108 return nullid |
1fd1cdcc4200
Switch revlog.ancestor to use revisions rather than nodeids
Matt Mackall <mpm@selenic.com>
parents:
3135
diff
changeset
|
1109 |
1fd1cdcc4200
Switch revlog.ancestor to use revisions rather than nodeids
Matt Mackall <mpm@selenic.com>
parents:
3135
diff
changeset
|
1110 return self.node(c) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1111 |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1112 def group(self, nodelist, lookup, infocollect=None): |
1083 | 1113 """calculate a delta group |
46 | 1114 |
1083 | 1115 Given a list of changeset revs, return a set of deltas and |
1116 metadata corresponding to nodes. the first delta is | |
1117 parent(nodes[0]) -> nodes[0] the receiver is guaranteed to | |
1118 have this parent as it has all history before these | |
1119 changesets. parent is parent[0] | |
1120 """ | |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1121 revs = [self.rev(n) for n in nodelist] |
46 | 1122 |
1123 # if we don't have any revisions touched by these changesets, bail | |
192 | 1124 if not revs: |
1981
736b6c96bbbc
make incoming work via ssh (issue139); move chunk code into separate module.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1941
diff
changeset
|
1125 yield changegroup.closechunk() |
192 | 1126 return |
46 | 1127 |
1128 # add the parent of the first rev | |
1129 p = self.parents(self.node(revs[0]))[0] | |
1130 revs.insert(0, self.rev(p)) | |
1131 | |
1132 # build deltas | |
71
47c9a869adee
Add mdiff.patches to speed up applying thousands of patches to the manifest
mpm@selenic.com
parents:
67
diff
changeset
|
1133 for d in xrange(0, len(revs) - 1): |
46 | 1134 a, b = revs[d], revs[d + 1] |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1135 nb = self.node(b) |
192 | 1136 |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1137 if infocollect is not None: |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1138 infocollect(nb) |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1139 |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1140 p = self.parents(nb) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1141 meta = nb + p[0] + p[1] + lookup(nb) |
5367
7530334bf301
revlog: generate trivial deltas against null revision
Matt Mackall <mpm@selenic.com>
parents:
5338
diff
changeset
|
1142 if a == -1: |
7530334bf301
revlog: generate trivial deltas against null revision
Matt Mackall <mpm@selenic.com>
parents:
5338
diff
changeset
|
1143 d = self.revision(nb) |
7530334bf301
revlog: generate trivial deltas against null revision
Matt Mackall <mpm@selenic.com>
parents:
5338
diff
changeset
|
1144 meta += mdiff.trivialdiffheader(len(d)) |
7530334bf301
revlog: generate trivial deltas against null revision
Matt Mackall <mpm@selenic.com>
parents:
5338
diff
changeset
|
1145 else: |
7530334bf301
revlog: generate trivial deltas against null revision
Matt Mackall <mpm@selenic.com>
parents:
5338
diff
changeset
|
1146 d = self.revdiff(a, b) |
5368
61462e7d62ed
changegroup: avoid large copies
Matt Mackall <mpm@selenic.com>
parents:
5367
diff
changeset
|
1147 yield changegroup.chunkheader(len(meta) + len(d)) |
61462e7d62ed
changegroup: avoid large copies
Matt Mackall <mpm@selenic.com>
parents:
5367
diff
changeset
|
1148 yield meta |
5448
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1149 if len(d) > 2**20: |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1150 pos = 0 |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1151 while pos < len(d): |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1152 pos2 = pos + 2 ** 18 |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1153 yield d[pos:pos2] |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1154 pos = pos2 |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1155 else: |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1156 yield d |
46 | 1157 |
1981
736b6c96bbbc
make incoming work via ssh (issue139); move chunk code into separate module.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1941
diff
changeset
|
1158 yield changegroup.closechunk() |
192 | 1159 |
6647
602f7c1ab954
drop superfluous param from revlog.addgroup()
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
6470
diff
changeset
|
1160 def addgroup(self, revs, linkmapper, transaction): |
1083 | 1161 """ |
1162 add a delta group | |
46 | 1163 |
1083 | 1164 given a set of deltas, add them to the revision log. the |
1165 first delta is against its parent, which should be in our | |
1166 log, the rest are against the previous delta. | |
1167 """ | |
1168 | |
1169 #track the base of the current delta log | |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1170 r = len(self) |
46 | 1171 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
|
1172 node = None |
515 | 1173 |
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3508
diff
changeset
|
1174 base = prev = nullrev |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1175 start = end = textlen = 0 |
46 | 1176 if r: |
1177 end = self.end(t) | |
1178 | |
2072 | 1179 ifh = self.opener(self.indexfile, "a+") |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1180 isize = r * self._io.size |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1181 if self._inline: |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1182 transaction.add(self.indexfile, end + isize, r) |
2073 | 1183 dfh = None |
1184 else: | |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1185 transaction.add(self.indexfile, isize, r) |
2073 | 1186 transaction.add(self.datafile, end) |
1187 dfh = self.opener(self.datafile, "a") | |
46 | 1188 |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1189 try: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1190 # loop through our set of deltas |
7c8101b5ceb1
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1191 chain = None |
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1192 for chunk in revs: |
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1193 node, p1, p2, cs = struct.unpack("20s20s20s20s", chunk[:80]) |
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1194 link = linkmapper(cs) |
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1195 if node in self.nodemap: |
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|
1196 # this can happen if two branches make the same change |
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1197 chain = node |
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1198 continue |
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1199 delta = buffer(chunk, 80) |
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|
1200 del chunk |
192 | 1201 |
6261
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|
1202 for p in (p1, p2): |
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1203 if not p in self.nodemap: |
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1204 raise LookupError(p, self.indexfile, _('unknown parent')) |
46 | 1205 |
6261
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1206 if not chain: |
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1207 # retrieve the parent revision of the delta chain |
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1208 chain = p1 |
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1209 if not chain in self.nodemap: |
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1210 raise LookupError(chain, self.indexfile, _('unknown base')) |
46 | 1211 |
6261
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1212 # full versions are inserted when the needed deltas become |
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|
1213 # comparable to the uncompressed text or when the previous |
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1214 # version is not the one we have a delta against. We use |
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1215 # the size of the previous full rev as a proxy for the |
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1216 # current size. |
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1217 |
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1218 if chain == prev: |
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|
1219 cdelta = compress(delta) |
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|
1220 cdeltalen = len(cdelta[0]) + len(cdelta[1]) |
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1221 textlen = mdiff.patchedsize(textlen, delta) |
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|
1222 |
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|
1223 if chain != prev or (end - start + cdeltalen) > textlen * 2: |
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|
1224 # flush our writes here so we can read it in revision |
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|
1225 if dfh: |
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|
1226 dfh.flush() |
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1227 ifh.flush() |
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1228 text = self.revision(chain) |
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|
1229 if len(text) == 0: |
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|
1230 # skip over trivial delta header |
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|
1231 text = buffer(delta, 12) |
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|
1232 else: |
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|
1233 text = mdiff.patches(text, [delta]) |
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|
1234 del delta |
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|
1235 chk = self._addrevision(text, transaction, link, p1, p2, None, |
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|
1236 ifh, dfh) |
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|
1237 if not dfh and not self._inline: |
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|
1238 # addrevision switched from inline to conventional |
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|
1239 # reopen the index |
2073 | 1240 dfh = self.opener(self.datafile, "a") |
1241 ifh = self.opener(self.indexfile, "a") | |
6261
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|
1242 if chk != node: |
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|
1243 raise RevlogError(_("consistency error adding group")) |
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|
1244 textlen = len(text) |
2073 | 1245 else: |
6261
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|
1246 e = (offset_type(end, 0), cdeltalen, textlen, base, |
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|
1247 link, self.rev(p1), self.rev(p2), node) |
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|
1248 self.index.insert(-1, e) |
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|
1249 self.nodemap[node] = r |
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|
1250 entry = self._io.packentry(e, self.node, self.version, r) |
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|
1251 if self._inline: |
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|
1252 ifh.write(entry) |
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|
1253 ifh.write(cdelta[0]) |
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|
1254 ifh.write(cdelta[1]) |
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|
1255 self.checkinlinesize(transaction, ifh) |
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|
1256 if not self._inline: |
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|
1257 dfh = self.opener(self.datafile, "a") |
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|
1258 ifh = self.opener(self.indexfile, "a") |
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|
1259 else: |
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|
1260 dfh.write(cdelta[0]) |
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|
1261 dfh.write(cdelta[1]) |
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|
1262 ifh.write(entry) |
46 | 1263 |
6261
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|
1264 t, r, chain, prev = r, r + 1, node, node |
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|
1265 base = self.base(t) |
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|
1266 start = self.start(base) |
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|
1267 end = self.end(t) |
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|
1268 finally: |
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|
1269 if dfh: |
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|
1270 dfh.close() |
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|
1271 ifh.close() |
46 | 1272 |
1273 return node | |
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1274 |
5910
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1275 def strip(self, minlink): |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
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diff
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|
1276 """truncate the revlog on the first revision with a linkrev >= minlink |
b9a830fa10f6
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diff
changeset
|
1277 |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
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5909
diff
changeset
|
1278 This function is called when we're stripping revision minlink and |
b9a830fa10f6
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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5909
diff
changeset
|
1279 its descendants from the repository. |
b9a830fa10f6
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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5909
diff
changeset
|
1280 |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1281 We have to remove all revisions with linkrev >= minlink, because |
b9a830fa10f6
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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5909
diff
changeset
|
1282 the equivalent changelog revisions will be renumbered after the |
b9a830fa10f6
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5909
diff
changeset
|
1283 strip. |
b9a830fa10f6
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5909
diff
changeset
|
1284 |
b9a830fa10f6
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5909
diff
changeset
|
1285 So we truncate the revlog on the first of these revisions, and |
b9a830fa10f6
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diff
changeset
|
1286 trust that the caller has saved the revisions that shouldn't be |
b9a830fa10f6
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diff
changeset
|
1287 removed and that it'll readd them after this truncation. |
b9a830fa10f6
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diff
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|
1288 """ |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
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6703
diff
changeset
|
1289 if len(self) == 0: |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1290 return |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
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1533
diff
changeset
|
1291 |
2072 | 1292 if isinstance(self.index, lazyindex): |
4920
ee983d0dbea8
revlog: privatize some methods
Matt Mackall <mpm@selenic.com>
parents:
4919
diff
changeset
|
1293 self._loadindexmap() |
2072 | 1294 |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1295 for rev in self: |
5909
f45f7390c1c5
strip: calculate list of extra nodes to save and pass it to changegroupsubset
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5659
diff
changeset
|
1296 if self.index[rev][4] >= minlink: |
f45f7390c1c5
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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5659
diff
changeset
|
1297 break |
f45f7390c1c5
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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5659
diff
changeset
|
1298 else: |
f45f7390c1c5
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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5659
diff
changeset
|
1299 return |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
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1300 |
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1301 # first truncate the files on disk |
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1302 end = self.start(rev) |
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1303 if not self._inline: |
2073 | 1304 df = self.opener(self.datafile, "a") |
1305 df.truncate(end) | |
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1306 end = rev * self._io.size |
2073 | 1307 else: |
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1308 end += rev * self._io.size |
2072 | 1309 |
1310 indexf = self.opener(self.indexfile, "a") | |
1311 indexf.truncate(end) | |
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1312 |
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1313 # then reset internal state in memory to forget those revisions |
4984 | 1314 self._cache = None |
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1315 self._chunkcache = None |
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1316 for x in xrange(rev, len(self)): |
2072 | 1317 del self.nodemap[self.node(x)] |
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1318 |
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1319 del self.index[rev:-1] |
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1320 |
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1321 def checksize(self): |
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1322 expected = 0 |
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1323 if len(self): |
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1324 expected = max(0, self.end(len(self) - 1)) |
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1325 |
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1326 try: |
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1327 f = self.opener(self.datafile) |
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1328 f.seek(0, 2) |
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1329 actual = f.tell() |
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1330 dd = actual - expected |
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1331 except IOError, inst: |
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1332 if inst.errno != errno.ENOENT: |
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1333 raise |
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1334 dd = 0 |
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1335 |
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1336 try: |
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1337 f = self.opener(self.indexfile) |
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1338 f.seek(0, 2) |
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1339 actual = f.tell() |
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1340 s = self._io.size |
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1341 i = max(0, actual / s) |
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1342 di = actual - (i * s) |
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1343 if self._inline: |
2073 | 1344 databytes = 0 |
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1345 for r in self: |
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1346 databytes += max(0, self.length(r)) |
2073 | 1347 dd = 0 |
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1348 di = actual - len(self) * s - databytes |
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1349 except IOError, inst: |
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1350 if inst.errno != errno.ENOENT: |
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1351 raise |
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1352 di = 0 |
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1353 |
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1354 return (dd, di) |
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1355 |
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1356 def files(self): |
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1357 res = [ self.indexfile ] |
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1358 if not self._inline: |
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1359 res.append(self.datafile) |
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1360 return res |