author | Thomas Arendsen Hein <thomas@intevation.de> |
Fri, 10 Mar 2006 10:44:17 +0100 | |
changeset 1873 | 205f04b04ec6 |
parent 1853 | 5ac811b720de |
child 1941 | 7518823709a2 |
permissions | -rw-r--r-- |
1083 | 1 |
""" |
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revlog.py - storage back-end for mercurial |
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This provides efficient delta storage with O(1) retrieve and append |
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and O(changes) merge between branches |
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Copyright 2005 Matt Mackall <mpm@selenic.com> |
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This software may be used and distributed according to the terms |
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of the GNU General Public License, incorporated herein by reference. |
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""" |
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from node import * |
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from i18n import gettext as _ |
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from demandload import demandload |
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demandload(globals(), "binascii errno heapq mdiff os sha struct zlib") |
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def hash(text, p1, p2): |
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"""generate a hash from the given text and its parent hashes |
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This hash combines both the current file contents and its history |
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in a manner that makes it easy to distinguish nodes with the same |
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content in the revision graph. |
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""" |
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l = [p1, p2] |
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l.sort() |
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s = sha.new(l[0]) |
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s.update(l[1]) |
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s.update(text) |
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return s.digest() |
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def compress(text): |
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""" generate a possibly-compressed representation of text """ |
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if not text: return ("", text) |
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if len(text) < 44: |
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if text[0] == '\0': return ("", text) |
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return ('u', text) |
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bin = zlib.compress(text) |
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if len(bin) > len(text): |
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if text[0] == '\0': return ("", text) |
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return ('u', text) |
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return ("", bin) |
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def decompress(bin): |
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""" decompress the given input """ |
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if not bin: return bin |
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t = bin[0] |
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if t == '\0': return bin |
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if t == 'x': return zlib.decompress(bin) |
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if t == 'u': return bin[1:] |
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raise RevlogError(_("unknown compression type %r") % t) |
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indexformat = ">4l20s20s20s" |
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class lazyparser(object): |
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""" |
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this class avoids the need to parse the entirety of large indices |
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By default we parse and load 1000 entries at a time. |
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If no position is specified, we load the whole index, and replace |
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the lazy objects in revlog with the underlying objects for |
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efficiency in cases where we look at most of the nodes. |
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""" |
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def __init__(self, data, revlog): |
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self.data = data |
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self.s = struct.calcsize(indexformat) |
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self.l = len(data)/self.s |
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self.index = [None] * self.l |
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self.map = {nullid: -1} |
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self.all = 0 |
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self.revlog = revlog |
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def trunc(self, pos): |
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self.l = pos/self.s |
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def load(self, pos=None): |
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if self.all: return |
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if pos is not None: |
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block = pos / 1000 |
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i = block * 1000 |
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end = min(self.l, i + 1000) |
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else: |
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self.all = 1 |
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i = 0 |
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end = self.l |
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self.revlog.index = self.index |
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self.revlog.nodemap = self.map |
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while i < end: |
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d = self.data[i * self.s: (i + 1) * self.s] |
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e = struct.unpack(indexformat, d) |
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self.index[i] = e |
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self.map[e[6]] = i |
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i += 1 |
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class lazyindex(object): |
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"""a lazy version of the index array""" |
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def __init__(self, parser): |
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self.p = parser |
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def __len__(self): |
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return len(self.p.index) |
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def load(self, pos): |
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if pos < 0: |
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pos += len(self.p.index) |
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self.p.load(pos) |
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return self.p.index[pos] |
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def __getitem__(self, pos): |
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return self.p.index[pos] or self.load(pos) |
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def __delitem__(self, pos): |
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del self.p.index[pos] |
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def append(self, e): |
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self.p.index.append(e) |
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def trunc(self, pos): |
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self.p.trunc(pos) |
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class lazymap(object): |
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"""a lazy version of the node map""" |
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def __init__(self, parser): |
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self.p = parser |
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def load(self, key): |
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if self.p.all: return |
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n = self.p.data.find(key) |
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if n < 0: |
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raise KeyError(key) |
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pos = n / self.p.s |
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self.p.load(pos) |
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def __contains__(self, key): |
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self.p.load() |
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return key in self.p.map |
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def __iter__(self): |
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yield nullid |
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for i in xrange(self.p.l): |
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try: |
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yield self.p.index[i][6] |
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except: |
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self.p.load(i) |
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yield self.p.index[i][6] |
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def __getitem__(self, key): |
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try: |
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return self.p.map[key] |
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except KeyError: |
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try: |
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self.load(key) |
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return self.p.map[key] |
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except KeyError: |
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raise KeyError("node " + hex(key)) |
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def __setitem__(self, key, val): |
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self.p.map[key] = val |
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def __delitem__(self, key): |
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del self.p.map[key] |
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class RevlogError(Exception): pass |
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class revlog(object): |
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""" |
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the underlying revision storage object |
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A revlog consists of two parts, an index and the revision data. |
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The index is a file with a fixed record size containing |
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information on each revision, includings its nodeid (hash), the |
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nodeids of its parents, the position and offset of its data within |
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the data file, and the revision it's based on. Finally, each entry |
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contains a linkrev entry that can serve as a pointer to external |
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data. |
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The revision data itself is a linear collection of data chunks. |
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Each chunk represents a revision and is usually represented as a |
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delta against the previous chunk. To bound lookup time, runs of |
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deltas are limited to about 2 times the length of the original |
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version data. This makes retrieval of a version proportional to |
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its size, or O(1) relative to the number of revisions. |
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Both pieces of the revlog are written to in an append-only |
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fashion, which means we never need to rewrite a file to insert or |
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remove data, and can use some simple techniques to avoid the need |
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for locking while reading. |
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""" |
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def __init__(self, opener, indexfile, datafile): |
1083 | 181 |
""" |
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create a revlog object |
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opener is a function that abstracts the file opening operation |
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and can be used to implement COW semantics or the like. |
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""" |
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self.indexfile = indexfile |
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self.datafile = datafile |
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self.opener = opener |
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self.indexstat = None |
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self.cache = None |
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self.chunkcache = None |
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|
194 |
self.load() |
116
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195 |
|
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|
196 |
def load(self): |
0
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197 |
try: |
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|
198 |
f = self.opener(self.indexfile) |
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|
199 |
except IOError, inst: |
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|
200 |
if inst.errno != errno.ENOENT: |
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|
201 |
raise |
76
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|
202 |
i = "" |
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|
203 |
else: |
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|
204 |
try: |
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|
205 |
st = os.fstat(f.fileno()) |
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|
206 |
except AttributeError, inst: |
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|
207 |
st = None |
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|
208 |
else: |
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|
209 |
oldst = self.indexstat |
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|
210 |
if (oldst and st.st_dev == oldst.st_dev |
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|
211 |
and st.st_ino == oldst.st_ino |
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|
212 |
and st.st_mtime == oldst.st_mtime |
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|
213 |
and st.st_ctime == oldst.st_ctime): |
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|
214 |
return |
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|
215 |
self.indexstat = st |
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|
216 |
i = f.read() |
116
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|
217 |
|
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|
218 |
if i and i[:4] != "\0\0\0\0": |
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|
219 |
raise RevlogError(_("incompatible revlog signature on %s") % |
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220 |
self.indexfile) |
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|
221 |
|
116
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|
222 |
if len(i) > 10000: |
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|
223 |
# big index, let's parse it on demand |
323 | 224 |
parser = lazyparser(i, self) |
116
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225 |
self.index = lazyindex(parser) |
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|
226 |
self.nodemap = lazymap(parser) |
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227 |
else: |
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|
228 |
s = struct.calcsize(indexformat) |
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|
229 |
l = len(i) / s |
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|
230 |
self.index = [None] * l |
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|
231 |
m = [None] * l |
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|
232 |
|
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|
233 |
n = 0 |
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|
234 |
for f in xrange(0, l * s, s): |
116
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|
235 |
# offset, size, base, linkrev, p1, p2, nodeid |
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|
236 |
e = struct.unpack(indexformat, i[f:f + s]) |
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|
237 |
m[n] = (e[6], n) |
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|
238 |
self.index[n] = e |
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diff
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|
239 |
n += 1 |
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changeset
|
240 |
|
e484cd5ec282
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|
241 |
self.nodemap = dict(m) |
e484cd5ec282
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|
242 |
self.nodemap[nullid] = -1 |
0
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|
243 |
|
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|
244 |
def tip(self): return self.node(len(self.index) - 1) |
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|
245 |
def count(self): return len(self.index) |
26 | 246 |
def node(self, rev): return (rev < 0) and nullid or self.index[rev][6] |
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|
247 |
def rev(self, node): |
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|
248 |
try: |
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|
249 |
return self.nodemap[node] |
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|
250 |
except KeyError: |
1402
9d2c2e6b32b5
i18n part2: use '_' for all strings who are part of the user interface
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diff
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|
251 |
raise RevlogError(_('%s: no node %s') % (self.indexfile, hex(node))) |
1201
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|
252 |
def linkrev(self, node): return self.index[self.rev(node)][3] |
2 | 253 |
def parents(self, node): |
254 |
if node == nullid: return (nullid, nullid) |
|
1201
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|
255 |
return self.index[self.rev(node)][4:6] |
0
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|
256 |
|
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|
257 |
def start(self, rev): return self.index[rev][0] |
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|
258 |
def length(self, rev): return self.index[rev][1] |
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|
259 |
def end(self, rev): return self.start(rev) + self.length(rev) |
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|
260 |
def base(self, rev): return self.index[rev][2] |
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|
261 |
|
1074
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Add revlog.reachable to find a graph of ancestors for a given rev
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diff
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|
262 |
def reachable(self, rev, stop=None): |
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|
263 |
reachable = {} |
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|
264 |
visit = [rev] |
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|
265 |
reachable[rev] = 1 |
55bf5cfde69e
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|
266 |
if stop: |
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|
267 |
stopn = self.rev(stop) |
55bf5cfde69e
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|
268 |
else: |
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|
269 |
stopn = 0 |
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|
270 |
while visit: |
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|
271 |
n = visit.pop(0) |
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|
272 |
if n == stop: |
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|
273 |
continue |
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|
274 |
if n == nullid: |
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|
275 |
continue |
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|
276 |
for p in self.parents(n): |
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|
277 |
if self.rev(p) < stopn: |
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|
278 |
continue |
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changeset
|
279 |
if p not in reachable: |
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|
280 |
reachable[p] = 1 |
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|
281 |
visit.append(p) |
55bf5cfde69e
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|
282 |
return reachable |
55bf5cfde69e
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changeset
|
283 |
|
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
|
284 |
def nodesbetween(self, roots=None, heads=None): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
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changeset
|
285 |
"""Return a tuple containing three elements. Elements 1 and 2 contain |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
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diff
changeset
|
286 |
a final list bases and heads after all the unreachable ones have been |
518da3c3b6ce
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parents:
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diff
changeset
|
287 |
pruned. Element 0 contains a topologically sorted list of all |
518da3c3b6ce
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diff
changeset
|
288 |
|
518da3c3b6ce
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parents:
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diff
changeset
|
289 |
nodes that satisfy these constraints: |
518da3c3b6ce
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parents:
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diff
changeset
|
290 |
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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parents:
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diff
changeset
|
291 |
roots are considered descended from themselves). |
518da3c3b6ce
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diff
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|
292 |
2. All nodes must also be ancestors of a node in heads (the nodes in |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
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diff
changeset
|
293 |
heads are considered to be their own ancestors). |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
294 |
|
518da3c3b6ce
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diff
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|
295 |
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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parents:
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diff
changeset
|
296 |
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
|
297 |
heads method (i.e. a list of all nodes in the repository that |
518da3c3b6ce
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parents:
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diff
changeset
|
298 |
have no children).""" |
1463
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Fix to handle case of empty list for roots or heads in nodesbetween.
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parents:
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diff
changeset
|
299 |
nonodes = ([], [], []) |
1457
518da3c3b6ce
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parents:
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diff
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|
300 |
if roots is not None: |
518da3c3b6ce
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parents:
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diff
changeset
|
301 |
roots = list(roots) |
1463
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parents:
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diff
changeset
|
302 |
if not roots: |
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
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parents:
1459
diff
changeset
|
303 |
return nonodes |
1457
518da3c3b6ce
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parents:
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diff
changeset
|
304 |
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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parents:
1351
diff
changeset
|
305 |
else: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
306 |
roots = [nullid] # Everybody's a descendent of nullid |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
307 |
lowestrev = -1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
308 |
if (lowestrev == -1) and (heads is None): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
309 |
# We want _all_ the nodes! |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
310 |
return ([self.node(r) for r in xrange(0, self.count())], |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
311 |
[nullid], list(self.heads())) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
312 |
if heads is None: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
313 |
# 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>
parents:
1351
diff
changeset
|
314 |
# node. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
315 |
highestrev = self.count() - 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
316 |
# Set ancestors to None to signal that every node is an ancestor. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
317 |
ancestors = None |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
318 |
# 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:
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diff
changeset
|
319 |
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
|
320 |
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
|
321 |
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
|
322 |
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
|
323 |
return nonodes |
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
|
324 |
ancestors = {} |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
325 |
# Start at the top and keep marking parents until we're done. |
1463
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents:
1459
diff
changeset
|
326 |
nodestotag = heads[:] |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
327 |
# Turn heads into a dictionary so we can remove 'fake' heads. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
328 |
# Also, later we will be using it to filter out the heads we can't |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
329 |
# find from roots. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
330 |
heads = dict.fromkeys(heads, 0) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
331 |
# Remember where the top was so we can use it as a limit later. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
332 |
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
|
333 |
while nodestotag: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
334 |
# grab a node to tag |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
335 |
n = nodestotag.pop() |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
336 |
# Never tag nullid |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
337 |
if n == nullid: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
338 |
continue |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
339 |
# A node's revision number represents its place in a |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
340 |
# topologically sorted list of nodes. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
341 |
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
|
342 |
if r >= lowestrev: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
343 |
if n not in ancestors: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
344 |
# 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>
parents:
1351
diff
changeset
|
345 |
# 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:
1351
diff
changeset
|
346 |
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
|
347 |
# 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
|
348 |
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
|
349 |
p != nullid]) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
350 |
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
|
351 |
# 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
|
352 |
# any other heads. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
353 |
heads.pop(n) |
1459
106fdec8e1fb
Fix small bug in nodesbetween if heads is [nullid].
Eric Hopper <hopper@omnifarious.org>
parents:
1458
diff
changeset
|
354 |
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
|
355 |
return nonodes |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
356 |
# 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:
1351
diff
changeset
|
357 |
# 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
|
358 |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
359 |
# If one of the roots was nullid, everything is included anyway. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
360 |
if lowestrev > -1: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
361 |
# 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:
1351
diff
changeset
|
362 |
# include roots that aren't ancestors. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
363 |
|
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
364 |
# 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:
1351
diff
changeset
|
365 |
roots = [n for n in roots if n in ancestors] |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
366 |
# Recompute the lowest revision |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
367 |
if roots: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
368 |
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:
1351
diff
changeset
|
369 |
else: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
370 |
# 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
|
371 |
return nonodes |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
372 |
else: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
373 |
# 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>
parents:
1351
diff
changeset
|
374 |
# any other roots. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
375 |
lowestrev = -1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
376 |
roots = [nullid] |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
377 |
# 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:
1351
diff
changeset
|
378 |
# values don't matter. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
379 |
descendents = dict.fromkeys(roots, 1) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
380 |
# 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
|
381 |
# '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>
parents:
1351
diff
changeset
|
382 |
roots = descendents.copy() |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
383 |
# 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:
1351
diff
changeset
|
384 |
orderedout = [] |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
385 |
# Don't start at nullid since we don't want nullid in our output list, |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
386 |
# 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
|
387 |
# they're descendents. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
388 |
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
|
389 |
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
|
390 |
isdescendent = False |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
391 |
if lowestrev == -1: # Everybody is a descendent of nullid |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
392 |
isdescendent = True |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
393 |
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
|
394 |
# 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
|
395 |
isdescendent = True |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
396 |
# 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
|
397 |
# 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
|
398 |
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
|
399 |
# 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
|
400 |
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
|
401 |
# 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
|
402 |
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
|
403 |
roots.pop(n) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
404 |
else: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
405 |
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
|
406 |
# 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
|
407 |
# 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
|
408 |
# up there, remember?) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
409 |
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
|
410 |
descendents[n] = 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
411 |
isdescendent = True |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
412 |
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
|
413 |
# 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
|
414 |
orderedout.append(n) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
415 |
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
|
416 |
# 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
|
417 |
# from roots. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
418 |
# 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
|
419 |
heads[n] = 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
420 |
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
|
421 |
# 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
|
422 |
# 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
|
423 |
# 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
|
424 |
heads[n] = 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
425 |
# 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
|
426 |
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
|
427 |
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
|
428 |
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
|
429 |
roots = roots.keys() |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
430 |
assert orderedout |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
431 |
assert roots |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
432 |
assert heads |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
433 |
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
|
434 |
|
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
435 |
def heads(self, start=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
|
436 |
"""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
|
437 |
|
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
438 |
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
|
439 |
start will be returned |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
440 |
|
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
441 |
""" |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
442 |
if start is None: |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
443 |
start = nullid |
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
|
444 |
reachable = {start: 1} |
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
|
445 |
heads = {start: 1} |
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
|
446 |
startrev = self.rev(start) |
1083 | 447 |
|
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
|
448 |
for r in xrange(startrev + 1, self.count()): |
221 | 449 |
n = self.node(r) |
450 |
for pn in self.parents(n): |
|
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
|
451 |
if pn in reachable: |
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
|
452 |
reachable[n] = 1 |
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
|
453 |
heads[n] = 1 |
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
|
454 |
if pn in heads: |
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
|
455 |
del heads[pn] |
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
|
456 |
return heads.keys() |
370 | 457 |
|
458 |
def children(self, node): |
|
1083 | 459 |
"""find the children of a given node""" |
370 | 460 |
c = [] |
461 |
p = self.rev(node) |
|
462 |
for r in range(p + 1, self.count()): |
|
463 |
n = self.node(r) |
|
464 |
for pn in self.parents(n): |
|
854
473c030d34a6
Fixed revlog.children.
Tristan Wibberley <tristan@wibberley.org>
parents:
655
diff
changeset
|
465 |
if pn == node: |
473c030d34a6
Fixed revlog.children.
Tristan Wibberley <tristan@wibberley.org>
parents:
655
diff
changeset
|
466 |
c.append(n) |
370 | 467 |
continue |
468 |
elif pn == nullid: |
|
469 |
continue |
|
470 |
return c |
|
515 | 471 |
|
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
472 |
def lookup(self, id): |
1083 | 473 |
"""locate a node based on revision number or subset of hex nodeid""" |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
474 |
try: |
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
475 |
rev = int(id) |
469 | 476 |
if str(rev) != id: raise ValueError |
477 |
if rev < 0: rev = self.count() + rev |
|
476
0a338d506268
Really _call_ method revlog.count in revlog.lookup()
Thomas Arendsen Hein <thomas@intevation.de>
parents:
469
diff
changeset
|
478 |
if rev < 0 or rev >= self.count(): raise ValueError |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
479 |
return self.node(rev) |
469 | 480 |
except (ValueError, OverflowError): |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
481 |
c = [] |
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
482 |
for n in self.nodemap: |
469 | 483 |
if hex(n).startswith(id): |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
484 |
c.append(n) |
1402
9d2c2e6b32b5
i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1400
diff
changeset
|
485 |
if len(c) > 1: raise RevlogError(_("Ambiguous identifier")) |
9d2c2e6b32b5
i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1400
diff
changeset
|
486 |
if len(c) < 1: raise RevlogError(_("No match found")) |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
487 |
return c[0] |
515 | 488 |
|
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
489 |
return None |
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
490 |
|
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
491 |
def diff(self, a, b): |
1083 | 492 |
"""return a delta between two revisions""" |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
493 |
return mdiff.textdiff(a, b) |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
494 |
|
73 | 495 |
def patches(self, t, pl): |
1083 | 496 |
"""apply a list of patches to a string""" |
73 | 497 |
return mdiff.patches(t, pl) |
498 |
||
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
499 |
def chunk(self, rev): |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
500 |
start, length = self.start(rev), self.length(rev) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
501 |
end = start + length |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
502 |
|
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
503 |
def loadcache(): |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
504 |
cache_length = max(4096 * 1024, length) # 4Mo |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
505 |
df = self.opener(self.datafile) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
506 |
df.seek(start) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
507 |
self.chunkcache = (start, df.read(cache_length)) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
508 |
|
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
509 |
if not self.chunkcache: |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
510 |
loadcache() |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
511 |
|
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
512 |
cache_start = self.chunkcache[0] |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
513 |
cache_end = cache_start + len(self.chunkcache[1]) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
514 |
if start >= cache_start and end <= cache_end: |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
515 |
# it is cached |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
516 |
offset = start - cache_start |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
517 |
else: |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
518 |
loadcache() |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
519 |
offset = 0 |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
520 |
|
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
521 |
#def checkchunk(): |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
522 |
# df = self.opener(self.datafile) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
523 |
# df.seek(start) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
524 |
# return df.read(length) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
525 |
#assert s == checkchunk() |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
526 |
return decompress(self.chunkcache[1][offset:offset + length]) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
527 |
|
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
528 |
def delta(self, node): |
1083 | 529 |
"""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
|
530 |
r = self.rev(node) |
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
531 |
b = self.base(r) |
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
532 |
if r == b: |
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
533 |
return self.diff(self.revision(self.node(r - 1)), |
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
534 |
self.revision(node)) |
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
535 |
else: |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
536 |
return self.chunk(r) |
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
537 |
|
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
538 |
def revision(self, node): |
1083 | 539 |
"""return an uncompressed revision of a given""" |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
540 |
if node == nullid: return "" |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
541 |
if self.cache and self.cache[0] == node: return self.cache[2] |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
542 |
|
1083 | 543 |
# look up what we need to read |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
544 |
text = None |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
545 |
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
|
546 |
base = self.base(rev) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
547 |
|
1083 | 548 |
# do we have useful data cached? |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
549 |
if self.cache and self.cache[1] >= base and self.cache[1] < rev: |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
550 |
base = self.cache[1] |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
551 |
text = self.cache[2] |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
552 |
else: |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
553 |
text = self.chunk(base) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
554 |
|
71
47c9a869adee
Add mdiff.patches to speed up applying thousands of patches to the manifest
mpm@selenic.com
parents:
67
diff
changeset
|
555 |
bins = [] |
64 | 556 |
for r in xrange(base + 1, rev + 1): |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
557 |
bins.append(self.chunk(r)) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
558 |
|
71
47c9a869adee
Add mdiff.patches to speed up applying thousands of patches to the manifest
mpm@selenic.com
parents:
67
diff
changeset
|
559 |
text = mdiff.patches(text, bins) |
47c9a869adee
Add mdiff.patches to speed up applying thousands of patches to the manifest
mpm@selenic.com
parents:
67
diff
changeset
|
560 |
|
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
561 |
p1, p2 = self.parents(node) |
26 | 562 |
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
|
563 |
raise RevlogError(_("integrity check failed on %s:%d") |
98 | 564 |
% (self.datafile, rev)) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
565 |
|
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
566 |
self.cache = (node, rev, text) |
515 | 567 |
return text |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
568 |
|
644 | 569 |
def addrevision(self, text, transaction, link, p1=None, p2=None, d=None): |
1083 | 570 |
"""add a revision to the log |
571 |
||
572 |
text - the revision data to add |
|
573 |
transaction - the transaction object used for rollback |
|
574 |
link - the linkrev data to add |
|
575 |
p1, p2 - the parent nodeids of the revision |
|
576 |
d - an optional precomputed delta |
|
577 |
""" |
|
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
578 |
if text is None: text = "" |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
579 |
if p1 is None: p1 = self.tip() |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
580 |
if p2 is None: p2 = nullid |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
581 |
|
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
582 |
node = hash(text, p1, p2) |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
583 |
|
301 | 584 |
if node in self.nodemap: |
585 |
return node |
|
586 |
||
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
587 |
n = self.count() |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
588 |
t = n - 1 |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
589 |
|
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
590 |
if n: |
64 | 591 |
base = self.base(t) |
592 |
start = self.start(base) |
|
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
593 |
end = self.end(t) |
644 | 594 |
if not d: |
595 |
prev = self.revision(self.tip()) |
|
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
596 |
d = self.diff(prev, str(text)) |
98 | 597 |
data = compress(d) |
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
598 |
l = len(data[1]) + len(data[0]) |
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
599 |
dist = end - start + l |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
600 |
|
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
601 |
# full versions are inserted when the needed deltas |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
602 |
# become comparable to the uncompressed text |
64 | 603 |
if not n or dist > len(text) * 2: |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
604 |
data = compress(text) |
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
605 |
l = len(data[1]) + len(data[0]) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
606 |
base = n |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
607 |
else: |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
608 |
base = self.base(t) |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
609 |
|
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
610 |
offset = 0 |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
611 |
if t >= 0: |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
612 |
offset = self.end(t) |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
613 |
|
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
614 |
e = (offset, l, base, link, p1, p2, node) |
515 | 615 |
|
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
616 |
self.index.append(e) |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
617 |
self.nodemap[node] = n |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
618 |
entry = struct.pack(indexformat, *e) |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
619 |
|
26 | 620 |
transaction.add(self.datafile, e[0]) |
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
621 |
f = self.opener(self.datafile, "a") |
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
622 |
if data[0]: |
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
623 |
f.write(data[0]) |
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
624 |
f.write(data[1]) |
41 | 625 |
transaction.add(self.indexfile, n * len(entry)) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
626 |
self.opener(self.indexfile, "a").write(entry) |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
627 |
|
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
628 |
self.cache = (node, n, text) |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
629 |
return node |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
630 |
|
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
631 |
def ancestor(self, a, b): |
1083 | 632 |
"""calculate the least common ancestor of nodes a and b""" |
147 | 633 |
# calculate the distance of every node from root |
634 |
dist = {nullid: 0} |
|
635 |
for i in xrange(self.count()): |
|
636 |
n = self.node(i) |
|
637 |
p1, p2 = self.parents(n) |
|
638 |
dist[n] = max(dist[p1], dist[p2]) + 1 |
|
515 | 639 |
|
147 | 640 |
# traverse ancestors in order of decreasing distance from root |
641 |
def ancestors(node): |
|
642 |
# we store negative distances because heap returns smallest member |
|
643 |
h = [(-dist[node], node)] |
|
644 |
seen = {} |
|
645 |
while h: |
|
646 |
d, n = heapq.heappop(h) |
|
647 |
if n not in seen: |
|
648 |
seen[n] = 1 |
|
1351
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
649 |
yield (-d, n) |
147 | 650 |
for p in self.parents(n): |
651 |
heapq.heappush(h, (-dist[p], p)) |
|
45
f2b2d5daec30
Fix recursion depth trouble with ancestor algorithm
mpm@selenic.com
parents:
41
diff
changeset
|
652 |
|
1351
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
653 |
def generations(node): |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
654 |
sg, s = None, {} |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
655 |
for g,n in ancestors(node): |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
656 |
if g != sg: |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
657 |
if sg: |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
658 |
yield sg, s |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
659 |
sg, s = g, {n:1} |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
660 |
else: |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
661 |
s[n] = 1 |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
662 |
yield sg, s |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
663 |
|
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
664 |
x = generations(a) |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
665 |
y = generations(b) |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
666 |
gx = x.next() |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
667 |
gy = y.next() |
45
f2b2d5daec30
Fix recursion depth trouble with ancestor algorithm
mpm@selenic.com
parents:
41
diff
changeset
|
668 |
|
147 | 669 |
# increment each ancestor list until it is closer to root than |
670 |
# the other, or they match |
|
671 |
while 1: |
|
1351
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
672 |
#print "ancestor gen %s %s" % (gx[0], gy[0]) |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
673 |
if gx[0] == gy[0]: |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
674 |
# find the intersection |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
675 |
i = [ n for n in gx[1] if n in gy[1] ] |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
676 |
if i: |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
677 |
return i[0] |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
678 |
else: |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
679 |
#print "next" |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
680 |
gy = y.next() |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
681 |
gx = x.next() |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
682 |
elif gx[0] < gy[0]: |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
683 |
#print "next y" |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
684 |
gy = y.next() |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
685 |
else: |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
686 |
#print "next x" |
0e2be889ccd7
Repair ancestor logic, fix up test cases
Matt Mackall <mpm@selenic.com>
parents:
1325
diff
changeset
|
687 |
gx = x.next() |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
688 |
|
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
689 |
def group(self, nodelist, lookup, infocollect=None): |
1083 | 690 |
"""calculate a delta group |
46 | 691 |
|
1083 | 692 |
Given a list of changeset revs, return a set of deltas and |
693 |
metadata corresponding to nodes. the first delta is |
|
694 |
parent(nodes[0]) -> nodes[0] the receiver is guaranteed to |
|
695 |
have this parent as it has all history before these |
|
696 |
changesets. parent is parent[0] |
|
697 |
""" |
|
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
698 |
revs = [self.rev(n) for n in nodelist] |
46 | 699 |
|
700 |
# if we don't have any revisions touched by these changesets, bail |
|
192 | 701 |
if not revs: |
702 |
yield struct.pack(">l", 0) |
|
703 |
return |
|
46 | 704 |
|
705 |
# add the parent of the first rev |
|
706 |
p = self.parents(self.node(revs[0]))[0] |
|
707 |
revs.insert(0, self.rev(p)) |
|
708 |
||
709 |
# build deltas |
|
71
47c9a869adee
Add mdiff.patches to speed up applying thousands of patches to the manifest
mpm@selenic.com
parents:
67
diff
changeset
|
710 |
for d in xrange(0, len(revs) - 1): |
46 | 711 |
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
|
712 |
na = self.node(a) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
713 |
nb = self.node(b) |
192 | 714 |
|
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
715 |
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
|
716 |
infocollect(nb) |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
717 |
|
192 | 718 |
# do we need to construct a new delta? |
46 | 719 |
if a + 1 != b or self.base(b) == b: |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
720 |
ta = self.revision(na) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
721 |
tb = self.revision(nb) |
46 | 722 |
d = self.diff(ta, tb) |
723 |
else: |
|
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
724 |
d = self.chunk(b) |
46 | 725 |
|
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
726 |
p = self.parents(nb) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
727 |
meta = nb + p[0] + p[1] + lookup(nb) |
46 | 728 |
l = struct.pack(">l", len(meta) + len(d) + 4) |
192 | 729 |
yield l |
730 |
yield meta |
|
731 |
yield d |
|
46 | 732 |
|
192 | 733 |
yield struct.pack(">l", 0) |
734 |
||
1062 | 735 |
def addgroup(self, revs, linkmapper, transaction, unique=0): |
1083 | 736 |
""" |
737 |
add a delta group |
|
46 | 738 |
|
1083 | 739 |
given a set of deltas, add them to the revision log. the |
740 |
first delta is against its parent, which should be in our |
|
741 |
log, the rest are against the previous delta. |
|
742 |
""" |
|
743 |
||
744 |
#track the base of the current delta log |
|
46 | 745 |
r = self.count() |
746 |
t = r - 1 |
|
192 | 747 |
node = nullid |
515 | 748 |
|
655 | 749 |
base = prev = -1 |
653
94cdd02792b5
Fix corruption resulting from skipping parts of a revision group
Matt Mackall <mpm@selenic.com>
parents:
651
diff
changeset
|
750 |
start = end = measure = 0 |
46 | 751 |
if r: |
1749
d457fec76ab0
fix warnings from pychecker (unused variables and shadowing)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1711
diff
changeset
|
752 |
base = self.base(t) |
d457fec76ab0
fix warnings from pychecker (unused variables and shadowing)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1711
diff
changeset
|
753 |
start = self.start(base) |
46 | 754 |
end = self.end(t) |
1749
d457fec76ab0
fix warnings from pychecker (unused variables and shadowing)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1711
diff
changeset
|
755 |
measure = self.length(base) |
46 | 756 |
prev = self.tip() |
757 |
||
758 |
transaction.add(self.datafile, end) |
|
759 |
transaction.add(self.indexfile, r * struct.calcsize(indexformat)) |
|
760 |
dfh = self.opener(self.datafile, "a") |
|
761 |
ifh = self.opener(self.indexfile, "a") |
|
762 |
||
763 |
# loop through our set of deltas |
|
192 | 764 |
chain = None |
765 |
for chunk in revs: |
|
766 |
node, p1, p2, cs = struct.unpack("20s20s20s20s", chunk[:80]) |
|
94 | 767 |
link = linkmapper(cs) |
77 | 768 |
if node in self.nodemap: |
224
ccbcc4d76f81
fix bad assumption about uniqueness of file versions
mpm@selenic.com
parents:
221
diff
changeset
|
769 |
# 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
|
770 |
# 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
|
771 |
# 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
|
772 |
chain = node |
224
ccbcc4d76f81
fix bad assumption about uniqueness of file versions
mpm@selenic.com
parents:
221
diff
changeset
|
773 |
continue |
192 | 774 |
delta = chunk[80:] |
775 |
||
1509
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
776 |
for p in (p1, p2): |
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
777 |
if not p in self.nodemap: |
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
778 |
raise RevlogError(_("unknown parent %s") % short(p1)) |
46a07392cf28
Add safety check for addgroup
Matt Mackall <mpm@selenic.com>
parents:
1494
diff
changeset
|
779 |
|
192 | 780 |
if not chain: |
781 |
# retrieve the parent revision of the delta chain |
|
782 |
chain = p1 |
|
783 |
if not chain in self.nodemap: |
|
1402
9d2c2e6b32b5
i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1400
diff
changeset
|
784 |
raise RevlogError(_("unknown base %s") % short(chain[:4])) |
46 | 785 |
|
786 |
# full versions are inserted when the needed deltas become |
|
787 |
# comparable to the uncompressed text or when the previous |
|
788 |
# version is not the one we have a delta against. We use |
|
789 |
# the size of the previous full rev as a proxy for the |
|
790 |
# current size. |
|
791 |
||
792 |
if chain == prev: |
|
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
793 |
tempd = compress(delta) |
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
794 |
cdelta = tempd[0] + tempd[1] |
46 | 795 |
|
796 |
if chain != prev or (end - start + len(cdelta)) > measure * 2: |
|
797 |
# flush our writes here so we can read it in revision |
|
798 |
dfh.flush() |
|
799 |
ifh.flush() |
|
65
d40cc5aacc31
Fix up a bunch of bugs in the new merge code
mpm@selenic.com
parents:
64
diff
changeset
|
800 |
text = self.revision(chain) |
73 | 801 |
text = self.patches(text, [delta]) |
46 | 802 |
chk = self.addrevision(text, transaction, link, p1, p2) |
803 |
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
|
804 |
raise RevlogError(_("consistency error adding group")) |
46 | 805 |
measure = len(text) |
806 |
else: |
|
1749
d457fec76ab0
fix warnings from pychecker (unused variables and shadowing)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1711
diff
changeset
|
807 |
e = (end, len(cdelta), base, link, p1, p2, node) |
46 | 808 |
self.index.append(e) |
809 |
self.nodemap[node] = r |
|
810 |
dfh.write(cdelta) |
|
811 |
ifh.write(struct.pack(indexformat, *e)) |
|
812 |
||
65
d40cc5aacc31
Fix up a bunch of bugs in the new merge code
mpm@selenic.com
parents:
64
diff
changeset
|
813 |
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
|
814 |
base = self.base(t) |
d457fec76ab0
fix warnings from pychecker (unused variables and shadowing)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1711
diff
changeset
|
815 |
start = self.start(base) |
46 | 816 |
end = self.end(t) |
817 |
||
818 |
dfh.close() |
|
819 |
ifh.close() |
|
820 |
return node |
|
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
821 |
|
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
822 |
def strip(self, rev, minlink): |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
823 |
if self.count() == 0 or rev >= self.count(): |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
824 |
return |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
825 |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
826 |
# 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
|
827 |
# does not actually belong to an older changeset. |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
828 |
# The minlink parameter defines the oldest revision |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
829 |
# we're allowed to strip away. |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
830 |
while minlink > self.index[rev][3]: |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
831 |
rev += 1 |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
832 |
if rev >= self.count(): |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
833 |
return |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
834 |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
835 |
# first truncate the files on disk |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
836 |
end = self.start(rev) |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
837 |
self.opener(self.datafile, "a").truncate(end) |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
838 |
end = rev * struct.calcsize(indexformat) |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
839 |
self.opener(self.indexfile, "a").truncate(end) |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
840 |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
841 |
# then reset internal state in memory to forget those revisions |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
842 |
self.cache = None |
1711 | 843 |
self.chunkcache = None |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
844 |
for p in self.index[rev:]: |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
845 |
del self.nodemap[p[6]] |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
846 |
del self.index[rev:] |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
847 |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
848 |
# truncating the lazyindex also truncates the lazymap. |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
849 |
if isinstance(self.index, lazyindex): |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
850 |
self.index.trunc(end) |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
851 |
|
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
852 |
|
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
853 |
def checksize(self): |
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
854 |
expected = 0 |
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
855 |
if self.count(): |
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
856 |
expected = self.end(self.count() - 1) |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
857 |
|
1494
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
858 |
try: |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
859 |
f = self.opener(self.datafile) |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
860 |
f.seek(0, 2) |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
861 |
actual = f.tell() |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
862 |
dd = actual - expected |
1494
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
863 |
except IOError, inst: |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
864 |
if inst.errno != errno.ENOENT: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
865 |
raise |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
866 |
dd = 0 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
867 |
|
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
868 |
try: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
869 |
f = self.opener(self.indexfile) |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
870 |
f.seek(0, 2) |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
871 |
actual = f.tell() |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
872 |
s = struct.calcsize(indexformat) |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
873 |
i = actual / s |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
874 |
di = actual - (i * s) |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
875 |
except IOError, inst: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
876 |
if inst.errno != errno.ENOENT: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
877 |
raise |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
878 |
di = 0 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
879 |
|
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
880 |
return (dd, di) |
1494
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
881 |
|
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
882 |