Mercurial > hg
annotate mercurial/revlog.py @ 5769:49809f4a38d8
bisect: calculate candidate set while finding children
author | Matt Mackall <mpm@selenic.com> |
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date | Mon, 31 Dec 2007 18:20:33 -0600 |
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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 |
1089 | 13 from node import * |
3891 | 14 from i18n import _ |
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15 import binascii, changegroup, errno, ancestor, mdiff, os |
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16 import sha, struct, util, zlib |
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17 |
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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 = sha.new |
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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 |
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32 class RevlogError(Exception): |
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33 pass |
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34 |
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35 class LookupError(RevlogError): |
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36 def __init__(self, name, message=None): |
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37 if message is None: |
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38 message = _('not found: %s') % name |
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39 RevlogError.__init__(self, message) |
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40 self.name = name |
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41 |
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42 def getoffset(q): |
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43 return int(q >> 16) |
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44 |
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45 def gettype(q): |
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46 return int(q & 0xFFFF) |
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47 |
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48 def offset_type(offset, type): |
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49 return long(long(offset) << 16 | type) |
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50 |
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51 def hash(text, p1, p2): |
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52 """generate a hash from the given text and its parent hashes |
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53 |
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54 This hash combines both the current file contents and its history |
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55 in a manner that makes it easy to distinguish nodes with the same |
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56 content in the revision graph. |
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57 """ |
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58 l = [p1, p2] |
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59 l.sort() |
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60 s = _sha(l[0]) |
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61 s.update(l[1]) |
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62 s.update(text) |
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63 return s.digest() |
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64 |
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65 def compress(text): |
1083 | 66 """ generate a possibly-compressed representation of text """ |
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67 if not text: |
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68 return ("", text) |
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69 l = len(text) |
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70 bin = None |
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71 if l < 44: |
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72 pass |
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73 elif l > 1000000: |
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74 # zlib makes an internal copy, thus doubling memory usage for |
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75 # large files, so lets do this in pieces |
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76 z = zlib.compressobj() |
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77 p = [] |
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78 pos = 0 |
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79 while pos < l: |
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80 pos2 = pos + 2**20 |
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81 p.append(z.compress(text[pos:pos2])) |
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82 pos = pos2 |
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83 p.append(z.flush()) |
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84 if sum(map(len, p)) < l: |
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85 bin = "".join(p) |
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86 else: |
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87 bin = _compress(text) |
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88 if bin is None or len(bin) > l: |
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89 if text[0] == '\0': |
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90 return ("", text) |
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91 return ('u', text) |
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92 return ("", bin) |
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93 |
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94 def decompress(bin): |
1083 | 95 """ decompress the given input """ |
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96 if not bin: |
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97 return bin |
112 | 98 t = bin[0] |
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99 if t == '\0': |
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100 return bin |
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101 if t == 'x': |
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102 return _decompress(bin) |
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103 if t == 'u': |
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104 return bin[1:] |
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105 raise RevlogError(_("unknown compression type %r") % t) |
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106 |
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107 class lazyparser(object): |
1083 | 108 """ |
109 this class avoids the need to parse the entirety of large indices | |
110 """ | |
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111 |
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112 # lazyparser is not safe to use on windows if win32 extensions not |
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113 # available. it keeps file handle open, which make it not possible |
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114 # to break hardlinks on local cloned repos. |
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115 |
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116 def __init__(self, dataf, size): |
2079 | 117 self.dataf = dataf |
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118 self.s = struct.calcsize(indexformatng) |
2079 | 119 self.datasize = size |
120 self.l = size/self.s | |
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121 self.index = [None] * self.l |
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122 self.map = {nullid: nullrev} |
2079 | 123 self.allmap = 0 |
323 | 124 self.all = 0 |
2079 | 125 self.mapfind_count = 0 |
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126 |
2079 | 127 def loadmap(self): |
128 """ | |
129 during a commit, we need to make sure the rev being added is | |
130 not a duplicate. This requires loading the entire index, | |
131 which is fairly slow. loadmap can load up just the node map, | |
132 which takes much less time. | |
133 """ | |
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134 if self.allmap: |
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135 return |
2079 | 136 end = self.datasize |
137 self.allmap = 1 | |
138 cur = 0 | |
139 count = 0 | |
140 blocksize = self.s * 256 | |
141 self.dataf.seek(0) | |
142 while cur < end: | |
143 data = self.dataf.read(blocksize) | |
144 off = 0 | |
145 for x in xrange(256): | |
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146 n = data[off + ngshaoffset:off + ngshaoffset + 20] |
2079 | 147 self.map[n] = count |
148 count += 1 | |
149 if count >= self.l: | |
150 break | |
151 off += self.s | |
152 cur += blocksize | |
153 | |
154 def loadblock(self, blockstart, blocksize, data=None): | |
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155 if self.all: |
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156 return |
2079 | 157 if data is None: |
158 self.dataf.seek(blockstart) | |
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159 if blockstart + blocksize > self.datasize: |
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160 # the revlog may have grown since we've started running, |
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161 # but we don't have space in self.index for more entries. |
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162 # limit blocksize so that we don't get too much data. |
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163 blocksize = max(self.datasize - blockstart, 0) |
2079 | 164 data = self.dataf.read(blocksize) |
165 lend = len(data) / self.s | |
166 i = blockstart / self.s | |
167 off = 0 | |
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168 # lazyindex supports __delitem__ |
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169 if lend > len(self.index) - i: |
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170 lend = len(self.index) - i |
2079 | 171 for x in xrange(lend): |
172 if self.index[i + x] == None: | |
173 b = data[off : off + self.s] | |
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174 self.index[i + x] = b |
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175 n = b[ngshaoffset:ngshaoffset + 20] |
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176 self.map[n] = i + x |
2079 | 177 off += self.s |
178 | |
179 def findnode(self, node): | |
180 """search backwards through the index file for a specific node""" | |
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181 if self.allmap: |
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182 return None |
2079 | 183 |
184 # hg log will cause many many searches for the manifest | |
185 # nodes. After we get called a few times, just load the whole | |
186 # thing. | |
187 if self.mapfind_count > 8: | |
188 self.loadmap() | |
189 if node in self.map: | |
190 return node | |
191 return None | |
192 self.mapfind_count += 1 | |
193 last = self.l - 1 | |
194 while self.index[last] != None: | |
195 if last == 0: | |
196 self.all = 1 | |
197 self.allmap = 1 | |
198 return None | |
199 last -= 1 | |
200 end = (last + 1) * self.s | |
201 blocksize = self.s * 256 | |
202 while end >= 0: | |
203 start = max(end - blocksize, 0) | |
204 self.dataf.seek(start) | |
205 data = self.dataf.read(end - start) | |
206 findend = end - start | |
207 while True: | |
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208 # we're searching backwards, so we have to make sure |
2079 | 209 # we don't find a changeset where this node is a parent |
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210 off = data.find(node, 0, findend) |
2079 | 211 findend = off |
212 if off >= 0: | |
213 i = off / self.s | |
214 off = i * self.s | |
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215 n = data[off + ngshaoffset:off + ngshaoffset + 20] |
2079 | 216 if n == node: |
217 self.map[n] = i + start / self.s | |
218 return node | |
219 else: | |
220 break | |
221 end -= blocksize | |
222 return None | |
223 | |
224 def loadindex(self, i=None, end=None): | |
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225 if self.all: |
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226 return |
2079 | 227 all = False |
228 if i == None: | |
229 blockstart = 0 | |
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230 blocksize = (65536 / self.s) * self.s |
2079 | 231 end = self.datasize |
232 all = True | |
323 | 233 else: |
2079 | 234 if end: |
235 blockstart = i * self.s | |
236 end = end * self.s | |
237 blocksize = end - blockstart | |
238 else: | |
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239 blockstart = (i & ~1023) * self.s |
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240 blocksize = self.s * 1024 |
2079 | 241 end = blockstart + blocksize |
242 while blockstart < end: | |
243 self.loadblock(blockstart, blocksize) | |
244 blockstart += blocksize | |
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245 if all: |
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246 self.all = True |
515 | 247 |
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248 class lazyindex(object): |
1083 | 249 """a lazy version of the index array""" |
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250 def __init__(self, parser): |
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251 self.p = parser |
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252 def __len__(self): |
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253 return len(self.p.index) |
115 | 254 def load(self, pos): |
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255 if pos < 0: |
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256 pos += len(self.p.index) |
2079 | 257 self.p.loadindex(pos) |
115 | 258 return self.p.index[pos] |
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259 def __getitem__(self, pos): |
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260 return _unpack(indexformatng, self.p.index[pos] or self.load(pos)) |
2072 | 261 def __setitem__(self, pos, item): |
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262 self.p.index[pos] = _pack(indexformatng, *item) |
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263 def __delitem__(self, pos): |
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264 del self.p.index[pos] |
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265 def insert(self, pos, e): |
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266 self.p.index.insert(pos, _pack(indexformatng, *e)) |
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267 def append(self, e): |
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268 self.p.index.append(_pack(indexformatng, *e)) |
515 | 269 |
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270 class lazymap(object): |
1083 | 271 """a lazy version of the node map""" |
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272 def __init__(self, parser): |
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273 self.p = parser |
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274 def load(self, key): |
2079 | 275 n = self.p.findnode(key) |
276 if n == None: | |
1214 | 277 raise KeyError(key) |
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278 def __contains__(self, key): |
2079 | 279 if key in self.p.map: |
280 return True | |
281 self.p.loadmap() | |
323 | 282 return key in self.p.map |
97 | 283 def __iter__(self): |
469 | 284 yield nullid |
97 | 285 for i in xrange(self.p.l): |
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286 ret = self.p.index[i] |
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287 if not ret: |
2079 | 288 self.p.loadindex(i) |
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289 ret = self.p.index[i] |
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290 if isinstance(ret, str): |
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291 ret = _unpack(indexformatng, ret) |
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292 yield ret[7] |
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293 def __getitem__(self, key): |
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294 try: |
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295 return self.p.map[key] |
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296 except KeyError: |
86
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297 try: |
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298 self.load(key) |
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299 return self.p.map[key] |
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300 except KeyError: |
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301 raise KeyError("node " + hex(key)) |
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302 def __setitem__(self, key, val): |
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303 self.p.map[key] = val |
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304 def __delitem__(self, key): |
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305 del self.p.map[key] |
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306 |
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307 indexformatv0 = ">4l20s20s20s" |
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308 v0shaoffset = 56 |
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309 |
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310 class revlogoldio(object): |
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311 def __init__(self): |
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312 self.size = struct.calcsize(indexformatv0) |
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313 |
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314 def parseindex(self, fp, inline): |
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315 s = self.size |
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316 index = [] |
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|
317 nodemap = {nullid: nullrev} |
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318 n = off = 0 |
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319 data = fp.read() |
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320 l = len(data) |
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321 while off + s <= l: |
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322 cur = data[off:off + s] |
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323 off += s |
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324 e = _unpack(indexformatv0, cur) |
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325 # transform to revlogv1 format |
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326 e2 = (offset_type(e[0], 0), e[1], -1, e[2], e[3], |
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327 nodemap.get(e[4], nullrev), nodemap.get(e[5], nullrev), e[6]) |
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328 index.append(e2) |
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329 nodemap[e[6]] = n |
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330 n += 1 |
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331 |
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332 return index, nodemap, None |
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333 |
5338
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334 def packentry(self, entry, node, version, rev): |
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335 e2 = (getoffset(entry[0]), entry[1], entry[3], entry[4], |
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336 node(entry[5]), node(entry[6]), entry[7]) |
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337 return _pack(indexformatv0, *e2) |
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338 |
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339 # index ng: |
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340 # 6 bytes offset |
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341 # 2 bytes flags |
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342 # 4 bytes compressed length |
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343 # 4 bytes uncompressed length |
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344 # 4 bytes: base rev |
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345 # 4 bytes link rev |
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346 # 4 bytes parent 1 rev |
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347 # 4 bytes parent 2 rev |
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348 # 32 bytes: nodeid |
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349 indexformatng = ">Qiiiiii20s12x" |
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350 ngshaoffset = 32 |
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351 versionformat = ">I" |
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352 |
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353 class revlogio(object): |
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354 def __init__(self): |
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355 self.size = struct.calcsize(indexformatng) |
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356 |
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357 def parseindex(self, fp, inline): |
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358 try: |
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359 size = util.fstat(fp).st_size |
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360 except AttributeError: |
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361 size = 0 |
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362 |
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363 if util.openhardlinks() and not inline and size > 1000000: |
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364 # big index, let's parse it on demand |
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365 parser = lazyparser(fp, size) |
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366 index = lazyindex(parser) |
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367 nodemap = lazymap(parser) |
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368 e = list(index[0]) |
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369 type = gettype(e[0]) |
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370 e[0] = offset_type(0, type) |
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371 index[0] = e |
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372 return index, nodemap, None |
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373 |
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374 s = self.size |
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375 cache = None |
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376 index = [] |
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377 nodemap = {nullid: nullrev} |
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378 n = off = 0 |
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379 # if we're not using lazymap, always read the whole index |
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380 data = fp.read() |
4990 | 381 l = len(data) - s |
382 append = index.append | |
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383 if inline: |
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384 cache = (0, data) |
4990 | 385 while off <= l: |
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386 e = _unpack(indexformatng, data[off:off + s]) |
4990 | 387 nodemap[e[7]] = n |
388 append(e) | |
389 n += 1 | |
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390 if e[1] < 0: |
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391 break |
4990 | 392 off += e[1] + s |
393 else: | |
394 while off <= l: | |
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395 e = _unpack(indexformatng, data[off:off + s]) |
4990 | 396 nodemap[e[7]] = n |
397 append(e) | |
398 n += 1 | |
399 off += s | |
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400 |
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401 e = list(index[0]) |
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402 type = gettype(e[0]) |
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403 e[0] = offset_type(0, type) |
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404 index[0] = e |
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405 |
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406 return index, nodemap, cache |
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407 |
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408 def packentry(self, entry, node, version, rev): |
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409 p = _pack(indexformatng, *entry) |
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410 if rev == 0: |
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411 p = _pack(versionformat, version) + p[4:] |
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412 return p |
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413 |
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414 class revlog(object): |
1083 | 415 """ |
416 the underlying revision storage object | |
417 | |
418 A revlog consists of two parts, an index and the revision data. | |
419 | |
420 The index is a file with a fixed record size containing | |
421 information on each revision, includings its nodeid (hash), the | |
422 nodeids of its parents, the position and offset of its data within | |
423 the data file, and the revision it's based on. Finally, each entry | |
424 contains a linkrev entry that can serve as a pointer to external | |
425 data. | |
426 | |
427 The revision data itself is a linear collection of data chunks. | |
428 Each chunk represents a revision and is usually represented as a | |
429 delta against the previous chunk. To bound lookup time, runs of | |
430 deltas are limited to about 2 times the length of the original | |
431 version data. This makes retrieval of a version proportional to | |
432 its size, or O(1) relative to the number of revisions. | |
433 | |
434 Both pieces of the revlog are written to in an append-only | |
435 fashion, which means we never need to rewrite a file to insert or | |
436 remove data, and can use some simple techniques to avoid the need | |
437 for locking while reading. | |
438 """ | |
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439 def __init__(self, opener, indexfile): |
1083 | 440 """ |
441 create a revlog object | |
442 | |
443 opener is a function that abstracts the file opening operation | |
444 and can be used to implement COW semantics or the like. | |
445 """ | |
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446 self.indexfile = indexfile |
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447 self.datafile = indexfile[:-2] + ".d" |
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448 self.opener = opener |
4984 | 449 self._cache = None |
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450 self._chunkcache = None |
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451 self.nodemap = {nullid: nullrev} |
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452 self.index = [] |
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453 |
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454 v = REVLOG_DEFAULT_VERSION |
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455 if hasattr(opener, "defversion"): |
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456 v = opener.defversion |
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457 if v & REVLOGNG: |
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458 v |= REVLOGNGINLINEDATA |
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459 |
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460 i = "" |
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461 try: |
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462 f = self.opener(self.indexfile) |
2079 | 463 i = f.read(4) |
464 f.seek(0) | |
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465 if len(i) > 0: |
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466 v = struct.unpack(versionformat, i)[0] |
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467 except IOError, inst: |
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468 if inst.errno != errno.ENOENT: |
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469 raise |
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470 |
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471 self.version = v |
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472 self._inline = v & REVLOGNGINLINEDATA |
2073 | 473 flags = v & ~0xFFFF |
474 fmt = v & 0xFFFF | |
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475 if fmt == REVLOGV0 and flags: |
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476 raise RevlogError(_("index %s unknown flags %#04x for format v0") |
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477 % (self.indexfile, flags >> 16)) |
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478 elif fmt == REVLOGNG and flags & ~REVLOGNGINLINEDATA: |
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479 raise RevlogError(_("index %s unknown flags %#04x for revlogng") |
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480 % (self.indexfile, flags >> 16)) |
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481 elif fmt > REVLOGNG: |
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482 raise RevlogError(_("index %s unknown format %d") |
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483 % (self.indexfile, fmt)) |
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484 |
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485 self._io = revlogio() |
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486 if self.version == REVLOGV0: |
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487 self._io = revlogoldio() |
2072 | 488 if i: |
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489 d = self._io.parseindex(f, self._inline) |
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490 self.index, self.nodemap, self._chunkcache = d |
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491 |
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492 # add the magic null revision at -1 |
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493 self.index.append((0, 0, 0, -1, -1, -1, -1, nullid)) |
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494 |
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495 def _loadindex(self, start, end): |
2079 | 496 """load a block of indexes all at once from the lazy parser""" |
497 if isinstance(self.index, lazyindex): | |
498 self.index.p.loadindex(start, end) | |
499 | |
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500 def _loadindexmap(self): |
2072 | 501 """loads both the map and the index from the lazy parser""" |
502 if isinstance(self.index, lazyindex): | |
503 p = self.index.p | |
2079 | 504 p.loadindex() |
505 self.nodemap = p.map | |
506 | |
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507 def _loadmap(self): |
2079 | 508 """loads the map from the lazy parser""" |
509 if isinstance(self.nodemap, lazymap): | |
510 self.nodemap.p.loadmap() | |
511 self.nodemap = self.nodemap.p.map | |
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512 |
4980
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513 def tip(self): |
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514 return self.node(len(self.index) - 2) |
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515 def count(self): |
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516 return len(self.index) - 1 |
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517 |
1201
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518 def rev(self, node): |
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519 try: |
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520 return self.nodemap[node] |
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521 except KeyError: |
5558
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|
522 raise LookupError(hex(node), _('%s: no node %s') % (self.indexfile, hex(node))) |
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523 def node(self, rev): |
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|
524 return self.index[rev][7] |
2642
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|
525 def linkrev(self, node): |
4979
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526 return self.index[self.rev(node)][4] |
2 | 527 def parents(self, node): |
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528 d = self.index[self.rev(node)][5:7] |
3508
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|
529 return (self.node(d[0]), self.node(d[1])) |
2489
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2354
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530 def parentrevs(self, rev): |
4979
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diff
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|
531 return self.index[rev][5:7] |
2072 | 532 def start(self, rev): |
5006
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revlog: minor chunk speed-up
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533 return int(self.index[rev][0] >> 16) |
4980
fc44c8df9d99
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534 def end(self, rev): |
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535 return self.start(rev) + self.length(rev) |
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|
536 def length(self, rev): |
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|
537 return self.index[rev][1] |
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4979
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|
538 def base(self, rev): |
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539 return self.index[rev][3] |
0
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mpm@selenic.com
parents:
diff
changeset
|
540 |
2078
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|
541 def size(self, rev): |
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diff
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|
542 """return the length of the uncompressed text for a given revision""" |
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revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
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|
543 l = self.index[rev][2] |
2078
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544 if l >= 0: |
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545 return l |
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546 |
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547 t = self.revision(self.node(rev)) |
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548 return len(t) |
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549 |
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|
550 # alternate implementation, The advantage to this code is it |
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551 # will be faster for a single revision. But, the results are not |
441ea218414e
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552 # cached, so finding the size of every revision will be slower. |
441ea218414e
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|
553 """ |
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|
554 if self.cache and self.cache[1] == rev: |
441ea218414e
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|
555 return len(self.cache[2]) |
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|
556 |
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|
557 base = self.base(rev) |
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|
558 if self.cache and self.cache[1] >= base and self.cache[1] < rev: |
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559 base = self.cache[1] |
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|
560 text = self.cache[2] |
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|
561 else: |
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|
562 text = self.revision(self.node(base)) |
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563 |
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diff
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|
564 l = len(text) |
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|
565 for x in xrange(base + 1, rev + 1): |
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diff
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|
566 l = mdiff.patchedsize(l, self.chunk(x)) |
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|
567 return l |
441ea218414e
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diff
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|
568 """ |
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|
569 |
3630
508036290b00
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Matt Mackall <mpm@selenic.com>
parents:
3585
diff
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|
570 def reachable(self, node, stop=None): |
3683 | 571 """return a hash of all nodes ancestral to a given node, including |
572 the node itself, stopping when stop is matched""" | |
1074
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573 reachable = {} |
3630
508036290b00
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Matt Mackall <mpm@selenic.com>
parents:
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|
574 visit = [node] |
508036290b00
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Matt Mackall <mpm@selenic.com>
parents:
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|
575 reachable[node] = 1 |
1074
55bf5cfde69e
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parents:
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576 if stop: |
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|
577 stopn = self.rev(stop) |
55bf5cfde69e
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mason@suse.com
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|
578 else: |
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mason@suse.com
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|
579 stopn = 0 |
55bf5cfde69e
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diff
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|
580 while visit: |
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|
581 n = visit.pop(0) |
55bf5cfde69e
Add revlog.reachable to find a graph of ancestors for a given rev
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parents:
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diff
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|
582 if n == stop: |
55bf5cfde69e
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mason@suse.com
parents:
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diff
changeset
|
583 continue |
55bf5cfde69e
Add revlog.reachable to find a graph of ancestors for a given rev
mason@suse.com
parents:
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diff
changeset
|
584 if n == nullid: |
55bf5cfde69e
Add revlog.reachable to find a graph of ancestors for a given rev
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parents:
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|
585 continue |
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parents:
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diff
changeset
|
586 for p in self.parents(n): |
55bf5cfde69e
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mason@suse.com
parents:
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diff
changeset
|
587 if self.rev(p) < stopn: |
55bf5cfde69e
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parents:
1073
diff
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|
588 continue |
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Add revlog.reachable to find a graph of ancestors for a given rev
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parents:
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|
589 if p not in reachable: |
55bf5cfde69e
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mason@suse.com
parents:
1073
diff
changeset
|
590 reachable[p] = 1 |
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parents:
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diff
changeset
|
591 visit.append(p) |
55bf5cfde69e
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parents:
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diff
changeset
|
592 return reachable |
55bf5cfde69e
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parents:
1073
diff
changeset
|
593 |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
594 def nodesbetween(self, roots=None, heads=None): |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
595 """Return a tuple containing three elements. Elements 1 and 2 contain |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
596 a final list bases and heads after all the unreachable ones have been |
518da3c3b6ce
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parents:
1351
diff
changeset
|
597 pruned. Element 0 contains a topologically sorted list of all |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
598 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
599 nodes that satisfy these constraints: |
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Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
600 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
|
601 roots are considered descended from themselves). |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
602 2. All nodes must also be ancestors of a node in heads (the nodes in |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
603 heads are considered to be their own ancestors). |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
604 |
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This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
605 If roots is unspecified, nullid is assumed as the only root. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
606 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
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parents:
1351
diff
changeset
|
607 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>
parents:
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diff
changeset
|
608 have no children).""" |
1463
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
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parents:
1459
diff
changeset
|
609 nonodes = ([], [], []) |
1457
518da3c3b6ce
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diff
changeset
|
610 if roots is not None: |
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parents:
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diff
changeset
|
611 roots = list(roots) |
1463
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parents:
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diff
changeset
|
612 if not roots: |
26e73acc0cdf
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parents:
1459
diff
changeset
|
613 return nonodes |
1457
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This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
614 lowestrev = min([self.rev(n) for n in roots]) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
615 else: |
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This implements the nodesbetween method, and it removes the newer method
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parents:
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diff
changeset
|
616 roots = [nullid] # Everybody's a descendent of nullid |
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3508
diff
changeset
|
617 lowestrev = nullrev |
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3508
diff
changeset
|
618 if (lowestrev == nullrev) and (heads is None): |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
619 # We want _all_ the nodes! |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
620 return ([self.node(r) for r in xrange(0, self.count())], |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
621 [nullid], list(self.heads())) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
622 if heads is None: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
623 # All nodes are ancestors, so the latest ancestor is the last |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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diff
changeset
|
624 # node. |
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This implements the nodesbetween method, and it removes the newer method
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changeset
|
625 highestrev = self.count() - 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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1351
diff
changeset
|
626 # Set ancestors to None to signal that every node is an ancestor. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
627 ancestors = None |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
628 # Set heads to an empty dictionary for later discovery of heads |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
629 heads = {} |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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diff
changeset
|
630 else: |
1463
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents:
1459
diff
changeset
|
631 heads = list(heads) |
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents:
1459
diff
changeset
|
632 if not heads: |
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents:
1459
diff
changeset
|
633 return nonodes |
1457
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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
|
634 ancestors = {} |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
635 # Turn heads into a dictionary so we can remove 'fake' heads. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
636 # Also, later we will be using it to filter out the heads we can't |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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1351
diff
changeset
|
637 # find from roots. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
638 heads = dict.fromkeys(heads, 0) |
3360
ef8307585b41
nodesbetween: fix a bug with duplicate heads
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3335
diff
changeset
|
639 # Start at the top and keep marking parents until we're done. |
ef8307585b41
nodesbetween: fix a bug with duplicate heads
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3335
diff
changeset
|
640 nodestotag = heads.keys() |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
641 # Remember where the top was so we can use it as a limit later. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
642 highestrev = max([self.rev(n) for n in nodestotag]) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
643 while nodestotag: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
644 # grab a node to tag |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
645 n = nodestotag.pop() |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
646 # Never tag nullid |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
647 if n == nullid: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
648 continue |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
649 # A node's revision number represents its place in a |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
650 # topologically sorted list of nodes. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
651 r = self.rev(n) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
652 if r >= lowestrev: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
653 if n not in ancestors: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
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diff
changeset
|
654 # If we are possibly a descendent of one of the roots |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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diff
changeset
|
655 # and we haven't already been marked as an ancestor |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
656 ancestors[n] = 1 # Mark as ancestor |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
657 # Add non-nullid parents to list of nodes to tag. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
658 nodestotag.extend([p for p in self.parents(n) if |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
659 p != nullid]) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
660 elif n in heads: # We've seen it before, is it a fake head? |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
661 # So it is, real heads should not be the ancestors of |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
662 # any other heads. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
663 heads.pop(n) |
1459
106fdec8e1fb
Fix small bug in nodesbetween if heads is [nullid].
Eric Hopper <hopper@omnifarious.org>
parents:
1458
diff
changeset
|
664 if not ancestors: |
1463
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents:
1459
diff
changeset
|
665 return nonodes |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
666 # Now that we have our set of ancestors, we want to remove any |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
667 # roots that are not ancestors. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
668 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
669 # 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:
3508
diff
changeset
|
670 if lowestrev > nullrev: |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
671 # But, since we weren't, let's recompute the lowest rev to not |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
672 # include roots that aren't ancestors. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
673 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
674 # Filter out roots that aren't ancestors of heads |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
675 roots = [n for n in roots if n in ancestors] |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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changeset
|
676 # Recompute the lowest revision |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
677 if roots: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
678 lowestrev = min([self.rev(n) for n in roots]) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
679 else: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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changeset
|
680 # 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>
parents:
1459
diff
changeset
|
681 return nonodes |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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|
682 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
|
683 # We are descending from nullid, and don't need to care about |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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diff
changeset
|
684 # 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
|
685 lowestrev = nullrev |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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|
686 roots = [nullid] |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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changeset
|
687 # 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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diff
changeset
|
688 # 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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changeset
|
689 descendents = dict.fromkeys(roots, 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
|
690 # 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
|
691 # 'real' roots (i.e. are descended from other roots). |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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changeset
|
692 roots = descendents.copy() |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
693 # 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
|
694 orderedout = [] |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
695 # 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:
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diff
changeset
|
696 # 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:
1351
diff
changeset
|
697 # they're descendents. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
698 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:
1351
diff
changeset
|
699 n = self.node(r) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
700 isdescendent = False |
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3508
diff
changeset
|
701 if lowestrev == nullrev: # Everybody is a descendent of nullid |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
702 isdescendent = True |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
703 elif n in descendents: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
704 # n is already a descendent |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
705 isdescendent = True |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
706 # This check only needs to be done here because all the roots |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
707 # 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
|
708 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
|
709 # 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
|
710 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
|
711 # 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:
1351
diff
changeset
|
712 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
|
713 roots.pop(n) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
714 else: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
715 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
|
716 # 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
|
717 # 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
|
718 # up there, remember?) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
719 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
|
720 descendents[n] = 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
721 isdescendent = True |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
722 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
|
723 # 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
|
724 orderedout.append(n) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
725 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
|
726 # 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
|
727 # from roots. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
728 # 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
|
729 heads[n] = 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
730 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
|
731 # 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
|
732 # 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
|
733 # 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
|
734 heads[n] = 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
735 # 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
|
736 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
|
737 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
|
738 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
|
739 roots = roots.keys() |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
740 assert orderedout |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
741 assert roots |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
742 assert heads |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
743 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
|
744 |
3923
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
745 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
|
746 """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
|
747 |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
748 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
|
749 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
|
750 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
|
751 as if they had no children |
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
752 """ |
4991
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
753 if start is None and stop is None: |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
754 count = self.count() |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
755 if not count: |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
756 return [nullid] |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
757 ishead = [1] * (count + 1) |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
758 index = self.index |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
759 for r in xrange(count): |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
760 e = index[r] |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
761 ishead[e[5]] = ishead[e[6]] = 0 |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
762 return [self.node(r) for r in xrange(count) if ishead[r]] |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
763 |
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
764 if start is None: |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
765 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
|
766 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
|
767 stop = [] |
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
768 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
|
769 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
|
770 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
|
771 heads = {startrev: 1} |
1083 | 772 |
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
|
773 parentrevs = self.parentrevs |
1550
ccb9b62de892
add a -r/--rev option to heads to show only heads descendant from rev
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1535
diff
changeset
|
774 for r in xrange(startrev + 1, self.count()): |
2490
6ff82ec1f4b8
Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
2489
diff
changeset
|
775 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
|
776 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
|
777 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
|
778 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
|
779 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
|
780 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
|
781 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
|
782 |
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
|
783 return [self.node(r) for r in heads] |
370 | 784 |
785 def children(self, node): | |
1083 | 786 """find the children of a given node""" |
370 | 787 c = [] |
788 p = self.rev(node) | |
789 for r in range(p + 1, self.count()): | |
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
|
790 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
|
791 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
|
792 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
|
793 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
|
794 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
|
795 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
|
796 c.append(self.node(r)) |
370 | 797 return c |
515 | 798 |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
799 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
|
800 if isinstance(id, (long, int)): |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
801 # 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
|
802 return self.node(id) |
3438 | 803 if len(id) == 20: |
804 # possibly a binary node | |
805 # odds of a binary node being all hex in ASCII are 1 in 10**25 | |
806 try: | |
807 node = id | |
808 r = self.rev(node) # quick search the index | |
809 return node | |
3930
01d98d68d697
Add revlog.LookupError exception, and use it instead of RevlogError.
Brendan Cully <brendan@kublai.com>
parents:
3928
diff
changeset
|
810 except LookupError: |
3438 | 811 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
|
812 try: |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
813 # str(rev) |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
814 rev = int(id) |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
815 if str(rev) != id: |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
816 raise ValueError |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
817 if rev < 0: |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
818 rev = self.count() + rev |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
819 if rev < 0 or rev >= self.count(): |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
820 raise ValueError |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
821 return self.node(rev) |
469 | 822 except (ValueError, OverflowError): |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
823 pass |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
824 if len(id) == 40: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
825 try: |
3438 | 826 # a full hex nodeid? |
827 node = bin(id) | |
828 r = self.rev(node) | |
3157
4fe41a9e4591
optimize revlog.lookup when passed hex(node)[:...]
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3156
diff
changeset
|
829 return node |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
830 except TypeError: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
831 pass |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
832 |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
833 def _partialmatch(self, id): |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
834 if len(id) < 40: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
835 try: |
3438 | 836 # hex(node)[:...] |
837 bin_id = bin(id[:len(id) & ~1]) # grab an even number of digits | |
838 node = None | |
839 for n in self.nodemap: | |
840 if n.startswith(bin_id) and hex(n).startswith(id): | |
841 if node is not None: | |
5558
7c1a9a21dcd7
make LookupError more detailed
Bryan O'Sullivan <bos@serpentine.com>
parents:
5544
diff
changeset
|
842 raise LookupError(hex(node), |
7c1a9a21dcd7
make LookupError more detailed
Bryan O'Sullivan <bos@serpentine.com>
parents:
5544
diff
changeset
|
843 _("Ambiguous identifier")) |
3438 | 844 node = n |
845 if node is not None: | |
846 return node | |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
847 except TypeError: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
848 pass |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
849 |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
850 def lookup(self, id): |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
851 """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
|
852 - 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
|
853 - 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
|
854 """ |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
855 n = self._match(id) |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
856 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
|
857 return n |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
858 n = self._partialmatch(id) |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
859 if n: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
860 return n |
515 | 861 |
5558
7c1a9a21dcd7
make LookupError more detailed
Bryan O'Sullivan <bos@serpentine.com>
parents:
5544
diff
changeset
|
862 raise LookupError(id, _("No match found")) |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
863 |
2890
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
864 def cmp(self, node, text): |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
865 """compare text with a given file revision""" |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
866 p1, p2 = self.parents(node) |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
867 return hash(text, p1, p2) != node |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
868 |
4988
14486eea8e7a
revlog: speed up chunkcache
Matt Mackall <mpm@selenic.com>
parents:
4987
diff
changeset
|
869 def chunk(self, rev, df=None): |
2072 | 870 def loadcache(df): |
871 if not df: | |
4988
14486eea8e7a
revlog: speed up chunkcache
Matt Mackall <mpm@selenic.com>
parents:
4987
diff
changeset
|
872 if self._inline: |
2073 | 873 df = self.opener(self.indexfile) |
874 else: | |
875 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
|
876 df.seek(start) |
4983
4dbcfc6e359e
revlog: pull chunkcache back into revlog
Matt Mackall <mpm@selenic.com>
parents:
4982
diff
changeset
|
877 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
|
878 |
5006
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
879 start, length = self.start(rev), self.length(rev) |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
880 if self._inline: |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
881 start += (rev + 1) * self._io.size |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
882 end = start + length |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
883 |
5006
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
884 offset = 0 |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
885 if not self._chunkcache: |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
886 cache_length = max(65536, length) |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
887 loadcache(df) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
888 else: |
5006
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
889 cache_start = self._chunkcache[0] |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
890 cache_length = len(self._chunkcache[1]) |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
891 cache_end = cache_start + cache_length |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
892 if start >= cache_start and end <= cache_end: |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
893 # it is cached |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
894 offset = start - cache_start |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
895 else: |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
896 cache_length = max(65536, length) |
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
897 loadcache(df) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
898 |
4988
14486eea8e7a
revlog: speed up chunkcache
Matt Mackall <mpm@selenic.com>
parents:
4987
diff
changeset
|
899 # avoid copying large chunks |
14486eea8e7a
revlog: speed up chunkcache
Matt Mackall <mpm@selenic.com>
parents:
4987
diff
changeset
|
900 c = self._chunkcache[1] |
5006
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
901 if cache_length != length: |
4988
14486eea8e7a
revlog: speed up chunkcache
Matt Mackall <mpm@selenic.com>
parents:
4987
diff
changeset
|
902 c = c[offset:offset + length] |
14486eea8e7a
revlog: speed up chunkcache
Matt Mackall <mpm@selenic.com>
parents:
4987
diff
changeset
|
903 |
14486eea8e7a
revlog: speed up chunkcache
Matt Mackall <mpm@selenic.com>
parents:
4987
diff
changeset
|
904 return decompress(c) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
905 |
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
906 def delta(self, node): |
1083 | 907 """return or calculate a delta between a node and its predecessor""" |
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
908 r = self.rev(node) |
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
909 return self.revdiff(r - 1, r) |
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
910 |
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
911 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
|
912 """return or calculate a delta between two revisions""" |
5005
72082bfced9a
revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents:
5004
diff
changeset
|
913 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
|
914 return self.chunk(rev2) |
5005
72082bfced9a
revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents:
5004
diff
changeset
|
915 |
72082bfced9a
revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents:
5004
diff
changeset
|
916 return mdiff.textdiff(self.revision(self.node(rev1)), |
72082bfced9a
revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents:
5004
diff
changeset
|
917 self.revision(self.node(rev2))) |
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
918 |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
919 def revision(self, node): |
1083 | 920 """return an uncompressed revision of a given""" |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
921 if node == nullid: |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
922 return "" |
4984 | 923 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
|
924 return str(self._cache[2]) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
925 |
1083 | 926 # look up what we need to read |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
927 text = None |
9117c6561b0b
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mpm@selenic.com
parents:
diff
changeset
|
928 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
|
929 base = self.base(rev) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
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changeset
|
930 |
5004
825516d16b25
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Matt Mackall <mpm@selenic.com>
parents:
4996
diff
changeset
|
931 # check rev flags |
825516d16b25
revlog: move flag checking out of the offset fastpath
Matt Mackall <mpm@selenic.com>
parents:
4996
diff
changeset
|
932 if self.index[rev][0] & 0xFFFF: |
5312
fb070713ff36
revlog: more robust for damaged indexes
Matt Mackall <mpm@selenic.com>
parents:
5007
diff
changeset
|
933 raise RevlogError(_('incompatible revision flag %x') % |
fb070713ff36
revlog: more robust for damaged indexes
Matt Mackall <mpm@selenic.com>
parents:
5007
diff
changeset
|
934 (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
|
935 |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
936 if self._inline: |
2073 | 937 # we probably have the whole chunk cached |
938 df = None | |
939 else: | |
940 df = self.opener(self.datafile) | |
2072 | 941 |
1083 | 942 # do we have useful data cached? |
4984 | 943 if self._cache and self._cache[1] >= base and self._cache[1] < rev: |
944 base = self._cache[1] | |
5450
c728424d44c6
revlog: fix caching of buffer objects
Matt Mackall <mpm@selenic.com>
parents:
5448
diff
changeset
|
945 text = str(self._cache[2]) |
4920
ee983d0dbea8
revlog: privatize some methods
Matt Mackall <mpm@selenic.com>
parents:
4919
diff
changeset
|
946 self._loadindex(base, rev + 1) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
947 else: |
4920
ee983d0dbea8
revlog: privatize some methods
Matt Mackall <mpm@selenic.com>
parents:
4919
diff
changeset
|
948 self._loadindex(base, rev + 1) |
2072 | 949 text = self.chunk(base, df=df) |
0
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parents:
diff
changeset
|
950 |
4989
1aaed3d69772
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Matt Mackall <mpm@selenic.com>
parents:
4988
diff
changeset
|
951 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
|
952 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
|
953 p1, p2 = self.parents(node) |
26 | 954 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
|
955 raise RevlogError(_("integrity check failed on %s:%d") |
3680
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
956 % (self.datafile, rev)) |
0
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diff
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|
957 |
4984 | 958 self._cache = (node, rev, text) |
515 | 959 return text |
0
9117c6561b0b
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parents:
diff
changeset
|
960 |
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
961 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
|
962 if not self._inline: |
2073 | 963 return |
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
964 if not fp: |
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
965 fp = self.opener(self.indexfile, 'r') |
2082
856f0ba200bc
Additional appendfile fixes for interleaved data/index files
mason@suse.com
parents:
2081
diff
changeset
|
966 fp.seek(0, 2) |
2073 | 967 size = fp.tell() |
968 if size < 131072: | |
969 return | |
2084 | 970 trinfo = tr.find(self.indexfile) |
971 if trinfo == None: | |
3680
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
972 raise RevlogError(_("%s not found in the transaction") |
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
973 % self.indexfile) |
2084 | 974 |
975 trindex = trinfo[2] | |
976 dataoff = self.start(trindex) | |
977 | |
978 tr.add(self.datafile, dataoff) | |
2073 | 979 df = self.opener(self.datafile, 'w') |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
980 calc = self._io.size |
2073 | 981 for r in xrange(self.count()): |
982 start = self.start(r) + (r + 1) * calc | |
983 length = self.length(r) | |
984 fp.seek(start) | |
985 d = fp.read(length) | |
986 df.write(d) | |
987 fp.close() | |
988 df.close() | |
2076
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
989 fp = self.opener(self.indexfile, 'w', atomictemp=True) |
2073 | 990 self.version &= ~(REVLOGNGINLINEDATA) |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
991 self._inline = False |
4986
58cc017ec7e0
revlog: abstract out index entry packing
Matt Mackall <mpm@selenic.com>
parents:
4985
diff
changeset
|
992 for i in xrange(self.count()): |
5338
f87685355c9c
revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5325
diff
changeset
|
993 e = self._io.packentry(self.index[i], self.node, self.version, i) |
2073 | 994 fp.write(e) |
995 | |
2076
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
996 # 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
|
997 # real index |
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
998 fp.rename() |
2084 | 999 |
1000 tr.replace(self.indexfile, trindex * calc) | |
4983
4dbcfc6e359e
revlog: pull chunkcache back into revlog
Matt Mackall <mpm@selenic.com>
parents:
4982
diff
changeset
|
1001 self._chunkcache = None |
2073 | 1002 |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1003 def addrevision(self, text, transaction, link, p1, p2, d=None): |
1083 | 1004 """add a revision to the log |
1005 | |
1006 text - the revision data to add | |
1007 transaction - the transaction object used for rollback | |
1008 link - the linkrev data to add | |
1009 p1, p2 - the parent nodeids of the revision | |
1010 d - an optional precomputed delta | |
1011 """ | |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1012 dfh = None |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1013 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
|
1014 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
|
1015 ifh = self.opener(self.indexfile, "a+") |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1016 return self._addrevision(text, transaction, link, p1, p2, d, ifh, dfh) |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1017 |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1018 def _addrevision(self, text, transaction, link, p1, p2, d, ifh, dfh): |
0
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|
1019 node = hash(text, p1, p2) |
301 | 1020 if node in self.nodemap: |
1021 return node | |
1022 | |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1023 curr = self.count() |
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1024 prev = curr - 1 |
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1025 base = self.base(prev) |
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1026 offset = self.end(prev) |
0
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diff
changeset
|
1027 |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1028 if curr: |
644 | 1029 if not d: |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1030 ptext = self.revision(self.node(prev)) |
4989
1aaed3d69772
revlog: eliminate diff and patches functions
Matt Mackall <mpm@selenic.com>
parents:
4988
diff
changeset
|
1031 d = mdiff.textdiff(ptext, text) |
98 | 1032 data = compress(d) |
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
1033 l = len(data[1]) + len(data[0]) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1034 dist = l + offset - self.start(base) |
0
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parents:
diff
changeset
|
1035 |
9117c6561b0b
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parents:
diff
changeset
|
1036 # full versions are inserted when the needed deltas |
9117c6561b0b
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mpm@selenic.com
parents:
diff
changeset
|
1037 # become comparable to the uncompressed text |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1038 if not curr or dist > len(text) * 2: |
0
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parents:
diff
changeset
|
1039 data = compress(text) |
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
1040 l = len(data[1]) + len(data[0]) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1041 base = curr |
0
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diff
changeset
|
1042 |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1043 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
|
1044 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
|
1045 self.index.insert(-1, e) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1046 self.nodemap[node] = curr |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1047 |
5338
f87685355c9c
revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5325
diff
changeset
|
1048 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
|
1049 if not self._inline: |
2073 | 1050 transaction.add(self.datafile, offset) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1051 transaction.add(self.indexfile, curr * len(entry)) |
2073 | 1052 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
|
1053 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
|
1054 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
|
1055 dfh.flush() |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1056 ifh.write(entry) |
2073 | 1057 else: |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1058 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
|
1059 transaction.add(self.indexfile, offset, curr) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1060 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
|
1061 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
|
1062 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
|
1063 self.checkinlinesize(transaction, ifh) |
2073 | 1064 |
4984 | 1065 self._cache = (node, curr, text) |
0
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diff
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|
1066 return node |
9117c6561b0b
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diff
changeset
|
1067 |
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parents:
diff
changeset
|
1068 def ancestor(self, a, b): |
1083 | 1069 """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
|
1070 |
3139
1fd1cdcc4200
Switch revlog.ancestor to use revisions rather than nodeids
Matt Mackall <mpm@selenic.com>
parents:
3135
diff
changeset
|
1071 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
|
1072 return [p for p in self.parentrevs(rev) if p != nullrev] |
515 | 1073 |
3139
1fd1cdcc4200
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parents:
3135
diff
changeset
|
1074 c = ancestor.ancestor(self.rev(a), self.rev(b), parents) |
1fd1cdcc4200
Switch revlog.ancestor to use revisions rather than nodeids
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parents:
3135
diff
changeset
|
1075 if c is None: |
1fd1cdcc4200
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parents:
3135
diff
changeset
|
1076 return nullid |
1fd1cdcc4200
Switch revlog.ancestor to use revisions rather than nodeids
Matt Mackall <mpm@selenic.com>
parents:
3135
diff
changeset
|
1077 |
1fd1cdcc4200
Switch revlog.ancestor to use revisions rather than nodeids
Matt Mackall <mpm@selenic.com>
parents:
3135
diff
changeset
|
1078 return self.node(c) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1079 |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1080 def group(self, nodelist, lookup, infocollect=None): |
1083 | 1081 """calculate a delta group |
46 | 1082 |
1083 | 1083 Given a list of changeset revs, return a set of deltas and |
1084 metadata corresponding to nodes. the first delta is | |
1085 parent(nodes[0]) -> nodes[0] the receiver is guaranteed to | |
1086 have this parent as it has all history before these | |
1087 changesets. parent is parent[0] | |
1088 """ | |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1089 revs = [self.rev(n) for n in nodelist] |
46 | 1090 |
1091 # if we don't have any revisions touched by these changesets, bail | |
192 | 1092 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
|
1093 yield changegroup.closechunk() |
192 | 1094 return |
46 | 1095 |
1096 # add the parent of the first rev | |
1097 p = self.parents(self.node(revs[0]))[0] | |
1098 revs.insert(0, self.rev(p)) | |
1099 | |
1100 # build deltas | |
71
47c9a869adee
Add mdiff.patches to speed up applying thousands of patches to the manifest
mpm@selenic.com
parents:
67
diff
changeset
|
1101 for d in xrange(0, len(revs) - 1): |
46 | 1102 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
|
1103 nb = self.node(b) |
192 | 1104 |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1105 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
|
1106 infocollect(nb) |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1107 |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1108 p = self.parents(nb) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1109 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
|
1110 if a == -1: |
7530334bf301
revlog: generate trivial deltas against null revision
Matt Mackall <mpm@selenic.com>
parents:
5338
diff
changeset
|
1111 d = self.revision(nb) |
7530334bf301
revlog: generate trivial deltas against null revision
Matt Mackall <mpm@selenic.com>
parents:
5338
diff
changeset
|
1112 meta += mdiff.trivialdiffheader(len(d)) |
7530334bf301
revlog: generate trivial deltas against null revision
Matt Mackall <mpm@selenic.com>
parents:
5338
diff
changeset
|
1113 else: |
7530334bf301
revlog: generate trivial deltas against null revision
Matt Mackall <mpm@selenic.com>
parents:
5338
diff
changeset
|
1114 d = self.revdiff(a, b) |
5368
61462e7d62ed
changegroup: avoid large copies
Matt Mackall <mpm@selenic.com>
parents:
5367
diff
changeset
|
1115 yield changegroup.chunkheader(len(meta) + len(d)) |
61462e7d62ed
changegroup: avoid large copies
Matt Mackall <mpm@selenic.com>
parents:
5367
diff
changeset
|
1116 yield meta |
5448
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1117 if len(d) > 2**20: |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1118 pos = 0 |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1119 while pos < len(d): |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1120 pos2 = pos + 2 ** 18 |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1121 yield d[pos:pos2] |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1122 pos = pos2 |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1123 else: |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1124 yield d |
46 | 1125 |
1981
736b6c96bbbc
make incoming work via ssh (issue139); move chunk code into separate module.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1941
diff
changeset
|
1126 yield changegroup.closechunk() |
192 | 1127 |
1062 | 1128 def addgroup(self, revs, linkmapper, transaction, unique=0): |
1083 | 1129 """ |
1130 add a delta group | |
46 | 1131 |
1083 | 1132 given a set of deltas, add them to the revision log. the |
1133 first delta is against its parent, which should be in our | |
1134 log, the rest are against the previous delta. | |
1135 """ | |
1136 | |
1137 #track the base of the current delta log | |
46 | 1138 r = self.count() |
1139 t = r - 1 | |
2002
4aab906517c6
Calling revlog.addgroup with an empty changegroup now raises RevlogError.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1981
diff
changeset
|
1140 node = None |
515 | 1141 |
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3508
diff
changeset
|
1142 base = prev = nullrev |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1143 start = end = textlen = 0 |
46 | 1144 if r: |
1145 end = self.end(t) | |
1146 | |
2072 | 1147 ifh = self.opener(self.indexfile, "a+") |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1148 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
|
1149 if self._inline: |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1150 transaction.add(self.indexfile, end + isize, r) |
2073 | 1151 dfh = None |
1152 else: | |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1153 transaction.add(self.indexfile, isize, r) |
2073 | 1154 transaction.add(self.datafile, end) |
1155 dfh = self.opener(self.datafile, "a") | |
46 | 1156 |
1157 # loop through our set of deltas | |
192 | 1158 chain = None |
1159 for chunk in revs: | |
1160 node, p1, p2, cs = struct.unpack("20s20s20s20s", chunk[:80]) | |
94 | 1161 link = linkmapper(cs) |
77 | 1162 if node in self.nodemap: |
224
ccbcc4d76f81
fix bad assumption about uniqueness of file versions
mpm@selenic.com
parents:
221
diff
changeset
|
1163 # this can happen if two branches make the same change |
1218
cde6818e082a
Add preliminary support for the bundle and unbundle commands
mpm@selenic.com
parents:
1214
diff
changeset
|
1164 # if unique: |
1402
9d2c2e6b32b5
i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1400
diff
changeset
|
1165 # raise RevlogError(_("already have %s") % hex(node[:4])) |
653
94cdd02792b5
Fix corruption resulting from skipping parts of a revision group
Matt Mackall <mpm@selenic.com>
parents:
651
diff
changeset
|
1166 chain = node |
224
ccbcc4d76f81
fix bad assumption about uniqueness of file versions
mpm@selenic.com
parents:
221
diff
changeset
|
1167 continue |
5445
64cf1c853674
revlog: reduce memory usage in addgroup
Matt Mackall <mpm@selenic.com>
parents:
5368
diff
changeset
|
1168 delta = buffer(chunk, 80) |
64cf1c853674
revlog: reduce memory usage in addgroup
Matt Mackall <mpm@selenic.com>
parents:
5368
diff
changeset
|
1169 del chunk |
192 | 1170 |
1509
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
1171 for p in (p1, p2): |
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
1172 if not p in self.nodemap: |
5558
7c1a9a21dcd7
make LookupError more detailed
Bryan O'Sullivan <bos@serpentine.com>
parents:
5544
diff
changeset
|
1173 raise LookupError(hex(p), _("unknown parent %s") % short(p)) |
1509
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
1174 |
192 | 1175 if not chain: |
1176 # retrieve the parent revision of the delta chain | |
1177 chain = p1 | |
1178 if not chain in self.nodemap: | |
5558
7c1a9a21dcd7
make LookupError more detailed
Bryan O'Sullivan <bos@serpentine.com>
parents:
5544
diff
changeset
|
1179 raise LookupError(hex(chain), _("unknown base %s") % short(chain[:4])) |
46 | 1180 |
1181 # full versions are inserted when the needed deltas become | |
1182 # comparable to the uncompressed text or when the previous | |
1183 # version is not the one we have a delta against. We use | |
1184 # the size of the previous full rev as a proxy for the | |
1185 # current size. | |
1186 | |
1187 if chain == prev: | |
5445
64cf1c853674
revlog: reduce memory usage in addgroup
Matt Mackall <mpm@selenic.com>
parents:
5368
diff
changeset
|
1188 cdelta = compress(delta) |
64cf1c853674
revlog: reduce memory usage in addgroup
Matt Mackall <mpm@selenic.com>
parents:
5368
diff
changeset
|
1189 cdeltalen = len(cdelta[0]) + len(cdelta[1]) |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1190 textlen = mdiff.patchedsize(textlen, delta) |
46 | 1191 |
5445
64cf1c853674
revlog: reduce memory usage in addgroup
Matt Mackall <mpm@selenic.com>
parents:
5368
diff
changeset
|
1192 if chain != prev or (end - start + cdeltalen) > textlen * 2: |
46 | 1193 # flush our writes here so we can read it in revision |
2072 | 1194 if dfh: |
1195 dfh.flush() | |
46 | 1196 ifh.flush() |
65
d40cc5aacc31
Fix up a bunch of bugs in the new merge code
mpm@selenic.com
parents:
64
diff
changeset
|
1197 text = self.revision(chain) |
5445
64cf1c853674
revlog: reduce memory usage in addgroup
Matt Mackall <mpm@selenic.com>
parents:
5368
diff
changeset
|
1198 if len(text) == 0: |
64cf1c853674
revlog: reduce memory usage in addgroup
Matt Mackall <mpm@selenic.com>
parents:
5368
diff
changeset
|
1199 # skip over trivial delta header |
64cf1c853674
revlog: reduce memory usage in addgroup
Matt Mackall <mpm@selenic.com>
parents:
5368
diff
changeset
|
1200 text = buffer(delta, 12) |
64cf1c853674
revlog: reduce memory usage in addgroup
Matt Mackall <mpm@selenic.com>
parents:
5368
diff
changeset
|
1201 else: |
64cf1c853674
revlog: reduce memory usage in addgroup
Matt Mackall <mpm@selenic.com>
parents:
5368
diff
changeset
|
1202 text = mdiff.patches(text, [delta]) |
64cf1c853674
revlog: reduce memory usage in addgroup
Matt Mackall <mpm@selenic.com>
parents:
5368
diff
changeset
|
1203 del delta |
3390
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1204 chk = self._addrevision(text, transaction, link, p1, p2, None, |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1205 ifh, dfh) |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1206 if not dfh and 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
|
1207 # addrevision switched from inline to conventional |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1208 # reopen the index |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1209 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
|
1210 ifh = self.opener(self.indexfile, "a") |
46 | 1211 if chk != node: |
1402
9d2c2e6b32b5
i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1400
diff
changeset
|
1212 raise RevlogError(_("consistency error adding group")) |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1213 textlen = len(text) |
46 | 1214 else: |
5445
64cf1c853674
revlog: reduce memory usage in addgroup
Matt Mackall <mpm@selenic.com>
parents:
5368
diff
changeset
|
1215 e = (offset_type(end, 0), cdeltalen, textlen, base, |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1216 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
|
1217 self.index.insert(-1, e) |
46 | 1218 self.nodemap[node] = r |
5338
f87685355c9c
revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5325
diff
changeset
|
1219 entry = self._io.packentry(e, self.node, self.version, r) |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1220 if self._inline: |
4986
58cc017ec7e0
revlog: abstract out index entry packing
Matt Mackall <mpm@selenic.com>
parents:
4985
diff
changeset
|
1221 ifh.write(entry) |
5445
64cf1c853674
revlog: reduce memory usage in addgroup
Matt Mackall <mpm@selenic.com>
parents:
5368
diff
changeset
|
1222 ifh.write(cdelta[0]) |
64cf1c853674
revlog: reduce memory usage in addgroup
Matt Mackall <mpm@selenic.com>
parents:
5368
diff
changeset
|
1223 ifh.write(cdelta[1]) |
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
1224 self.checkinlinesize(transaction, ifh) |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1225 if not self._inline: |
2073 | 1226 dfh = self.opener(self.datafile, "a") |
1227 ifh = self.opener(self.indexfile, "a") | |
1228 else: | |
5445
64cf1c853674
revlog: reduce memory usage in addgroup
Matt Mackall <mpm@selenic.com>
parents:
5368
diff
changeset
|
1229 dfh.write(cdelta[0]) |
64cf1c853674
revlog: reduce memory usage in addgroup
Matt Mackall <mpm@selenic.com>
parents:
5368
diff
changeset
|
1230 dfh.write(cdelta[1]) |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1231 ifh.write(entry) |
46 | 1232 |
65
d40cc5aacc31
Fix up a bunch of bugs in the new merge code
mpm@selenic.com
parents:
64
diff
changeset
|
1233 t, r, chain, prev = r, r + 1, node, node |
1749
d457fec76ab0
fix warnings from pychecker (unused variables and shadowing)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1711
diff
changeset
|
1234 base = self.base(t) |
d457fec76ab0
fix warnings from pychecker (unused variables and shadowing)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1711
diff
changeset
|
1235 start = self.start(base) |
46 | 1236 end = self.end(t) |
1237 | |
1238 return node | |
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1239 |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1240 def strip(self, rev, minlink): |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1241 if self.count() == 0 or rev >= self.count(): |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1242 return |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1243 |
2072 | 1244 if isinstance(self.index, lazyindex): |
4920
ee983d0dbea8
revlog: privatize some methods
Matt Mackall <mpm@selenic.com>
parents:
4919
diff
changeset
|
1245 self._loadindexmap() |
2072 | 1246 |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1247 # When stripping away a revision, we need to make sure it |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1248 # does not actually belong to an older changeset. |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1249 # The minlink parameter defines the oldest revision |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1250 # we're allowed to strip away. |
4978
93d48a8fa496
revlog: change accesses to index entry elements to use positive offsets
Matt Mackall <mpm@selenic.com>
parents:
4977
diff
changeset
|
1251 while minlink > self.index[rev][4]: |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1252 rev += 1 |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1253 if rev >= self.count(): |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1254 return |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1255 |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1256 # first truncate the files on disk |
7ae0ce7a3dc4
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1257 end = self.start(rev) |
4982
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1258 if not self._inline: |
2073 | 1259 df = self.opener(self.datafile, "a") |
1260 df.truncate(end) | |
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1261 end = rev * self._io.size |
2073 | 1262 else: |
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1263 end += rev * self._io.size |
2072 | 1264 |
1265 indexf = self.opener(self.indexfile, "a") | |
1266 indexf.truncate(end) | |
1535
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1267 |
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1268 # then reset internal state in memory to forget those revisions |
4984 | 1269 self._cache = None |
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1270 self._chunkcache = None |
2072 | 1271 for x in xrange(rev, self.count()): |
1272 del self.nodemap[self.node(x)] | |
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1273 |
4979
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1274 del self.index[rev:-1] |
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1275 |
1493
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1276 def checksize(self): |
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1277 expected = 0 |
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1278 if self.count(): |
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1279 expected = max(0, self.end(self.count() - 1)) |
1667
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1280 |
1494
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1281 try: |
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1282 f = self.opener(self.datafile) |
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1283 f.seek(0, 2) |
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1284 actual = f.tell() |
1667
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1285 dd = actual - expected |
1494
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1286 except IOError, inst: |
1667
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1287 if inst.errno != errno.ENOENT: |
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1288 raise |
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1289 dd = 0 |
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1290 |
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1291 try: |
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1292 f = self.opener(self.indexfile) |
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1293 f.seek(0, 2) |
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1294 actual = f.tell() |
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1295 s = self._io.size |
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1296 i = max(0, actual / s) |
1667
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1297 di = actual - (i * s) |
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1298 if self._inline: |
2073 | 1299 databytes = 0 |
1300 for r in xrange(self.count()): | |
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1301 databytes += max(0, self.length(r)) |
2073 | 1302 dd = 0 |
1303 di = actual - self.count() * s - databytes | |
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1304 except IOError, inst: |
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1305 if inst.errno != errno.ENOENT: |
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1306 raise |
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1307 di = 0 |
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1308 |
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1309 return (dd, di) |