--- a/mercurial/revlog.py
+++ b/mercurial/revlog.py
@@ -177,7 +177,7 @@ class revlog(object):
remove data, and can use some simple techniques to avoid the need
for locking while reading.
"""
- def __init__(self, opener, indexfile, datafile):
+ def __init__(self, opener, indexfile, datafile, local=True):
"""
create a revlog object
@@ -188,6 +188,7 @@ class revlog(object):
self.datafile = datafile
self.opener = opener
self.cache = None
+ self.local = local # XXX only needed because statichttp
try:
i = self.opener(self.indexfile).read()
@@ -650,7 +651,7 @@ class revlog(object):
#print "next x"
gx = x.next()
- def group(self, nodelist, lookup, infocollect = None):
+ def group(self, nodelist, lookup, infocollect=None):
"""calculate a delta group
Given a list of changeset revs, return a set of deltas and
@@ -660,7 +661,6 @@ class revlog(object):
changesets. parent is parent[0]
"""
revs = [self.rev(n) for n in nodelist]
- needed = dict.fromkeys(revs, 1)
# if we don't have any revisions touched by these changesets, bail
if not revs:
@@ -671,59 +671,70 @@ class revlog(object):
p = self.parents(self.node(revs[0]))[0]
revs.insert(0, self.rev(p))
- # for each delta that isn't contiguous in the log, we need to
- # reconstruct the base, reconstruct the result, and then
- # calculate the delta. We also need to do this where we've
- # stored a full version and not a delta
- for i in xrange(0, len(revs) - 1):
- a, b = revs[i], revs[i + 1]
- if a + 1 != b or self.base(b) == b:
- for j in xrange(self.base(a), a + 1):
- needed[j] = 1
- for j in xrange(self.base(b), b + 1):
- needed[j] = 1
+ if self.local:
+ mm = self.opener(self.datafile)
+ def chunk(r):
+ o = self.start(r)
+ l = self.length(r)
+ mm.seek(o)
+ return decompress(mm.read(l))
+ else:
+ # XXX: statichttp workaround
+ needed = dict.fromkeys(revs[1:], 1)
+ # for each delta that isn't contiguous in the log, we need to
+ # reconstruct the base, reconstruct the result, and then
+ # calculate the delta. We also need to do this where we've
+ # stored a full version and not a delta
+ for i in xrange(0, len(revs) - 1):
+ a, b = revs[i], revs[i + 1]
+ if a + 1 != b or self.base(b) == b:
+ for j in xrange(self.base(a), a + 1):
+ needed[j] = 1
+ for j in xrange(self.base(b), b + 1):
+ needed[j] = 1
- # calculate spans to retrieve from datafile
- needed = needed.keys()
- needed.sort()
- spans = []
- oo = -1
- ol = 0
- for n in needed:
- if n < 0: continue
- o = self.start(n)
- l = self.length(n)
- if oo + ol == o: # can we merge with the previous?
- nl = spans[-1][2]
- nl.append((n, l))
- ol += l
- spans[-1] = (oo, ol, nl)
- else:
- oo = o
- ol = l
- spans.append((oo, ol, [(n, l)]))
+ # calculate spans to retrieve from datafile
+ needed = needed.keys()
+ needed.sort()
+ spans = []
+ oo = -1
+ ol = 0
+ for n in needed:
+ if n < 0: continue
+ o = self.start(n)
+ l = self.length(n)
+ if oo + ol == o: # can we merge with the previous?
+ nl = spans[-1][2]
+ nl.append((n, l))
+ ol += l
+ spans[-1] = (oo, ol, nl)
+ else:
+ oo = o
+ ol = l
+ spans.append((oo, ol, [(n, l)]))
- # read spans in, divide up chunks
- chunks = {}
- for span in spans:
- # we reopen the file for each span to make http happy for now
- f = self.opener(self.datafile)
- f.seek(span[0])
- data = f.read(span[1])
+ # read spans in, divide up chunks
+ chunks = {}
+ for span in spans:
+ # we reopen the file for each span to make http happy for now
+ f = self.opener(self.datafile)
+ f.seek(span[0])
+ data = f.read(span[1])
- # divide up the span
- pos = 0
- for r, l in span[2]:
- chunks[r] = decompress(data[pos: pos + l])
- pos += l
+ # divide up the span
+ pos = 0
+ for r, l in span[2]:
+ chunks[r] = decompress(data[pos: pos + l])
+ pos += l
+ def chunk(r):
+ return chunks[r]
# helper to reconstruct intermediate versions
def construct(text, base, rev):
- bins = [chunks[r] for r in xrange(base + 1, rev + 1)]
+ bins = [chunk(r) for r in xrange(base + 1, rev + 1)]
return mdiff.patches(text, bins)
# build deltas
- deltas = []
for d in xrange(0, len(revs) - 1):
a, b = revs[d], revs[d + 1]
n = self.node(b)
@@ -735,7 +746,7 @@ class revlog(object):
if a + 1 != b or self.base(b) == b:
if a >= 0:
base = self.base(a)
- ta = chunks[self.base(a)]
+ ta = chunk(self.base(a))
ta = construct(ta, base, a)
else:
ta = ""
@@ -745,11 +756,11 @@ class revlog(object):
base = a
tb = ta
else:
- tb = chunks[self.base(b)]
+ tb = chunk(self.base(b))
tb = construct(tb, base, b)
d = self.diff(ta, tb)
else:
- d = chunks[b]
+ d = chunk(b)
p = self.parents(n)
meta = n + p[0] + p[1] + lookup(n)