|
|
# filelog.py - file history class for mercurial
|
|
|
#
|
|
|
# Copyright 2005 Matt Mackall <mpm@selenic.com>
|
|
|
#
|
|
|
# This software may be used and distributed according to the terms
|
|
|
# of the GNU General Public License, incorporated herein by reference.
|
|
|
|
|
|
from revlog import *
|
|
|
from demandload import *
|
|
|
demandload(globals(), "bdiff os")
|
|
|
|
|
|
class filelog(revlog):
|
|
|
def __init__(self, opener, path, defversion=REVLOG_DEFAULT_VERSION):
|
|
|
revlog.__init__(self, opener,
|
|
|
os.path.join("data", self.encodedir(path + ".i")),
|
|
|
os.path.join("data", self.encodedir(path + ".d")),
|
|
|
defversion)
|
|
|
|
|
|
# This avoids a collision between a file named foo and a dir named
|
|
|
# foo.i or foo.d
|
|
|
def encodedir(self, path):
|
|
|
return (path
|
|
|
.replace(".hg/", ".hg.hg/")
|
|
|
.replace(".i/", ".i.hg/")
|
|
|
.replace(".d/", ".d.hg/"))
|
|
|
|
|
|
def decodedir(self, path):
|
|
|
return (path
|
|
|
.replace(".d.hg/", ".d/")
|
|
|
.replace(".i.hg/", ".i/")
|
|
|
.replace(".hg.hg/", ".hg/"))
|
|
|
|
|
|
def read(self, node):
|
|
|
t = self.revision(node)
|
|
|
if not t.startswith('\1\n'):
|
|
|
return t
|
|
|
s = t.find('\1\n', 2)
|
|
|
return t[s+2:]
|
|
|
|
|
|
def readmeta(self, node):
|
|
|
t = self.revision(node)
|
|
|
if not t.startswith('\1\n'):
|
|
|
return {}
|
|
|
s = t.find('\1\n', 2)
|
|
|
mt = t[2:s]
|
|
|
m = {}
|
|
|
for l in mt.splitlines():
|
|
|
k, v = l.split(": ", 1)
|
|
|
m[k] = v
|
|
|
return m
|
|
|
|
|
|
def add(self, text, meta, transaction, link, p1=None, p2=None):
|
|
|
if meta or text.startswith('\1\n'):
|
|
|
mt = ""
|
|
|
if meta:
|
|
|
mt = [ "%s: %s\n" % (k, v) for k,v in meta.items() ]
|
|
|
text = "\1\n%s\1\n%s" % ("".join(mt), text)
|
|
|
return self.addrevision(text, transaction, link, p1, p2)
|
|
|
|
|
|
def renamed(self, node):
|
|
|
if self.parents(node)[0] != nullid:
|
|
|
return False
|
|
|
m = self.readmeta(node)
|
|
|
if m and m.has_key("copy"):
|
|
|
return (m["copy"], bin(m["copyrev"]))
|
|
|
return False
|
|
|
|
|
|
def annotate(self, node):
|
|
|
|
|
|
def decorate(text, rev):
|
|
|
return ([rev] * len(text.splitlines()), text)
|
|
|
|
|
|
def pair(parent, child):
|
|
|
for a1, a2, b1, b2 in bdiff.blocks(parent[1], child[1]):
|
|
|
child[0][b1:b2] = parent[0][a1:a2]
|
|
|
return child
|
|
|
|
|
|
# find all ancestors
|
|
|
needed = {node:1}
|
|
|
visit = [node]
|
|
|
while visit:
|
|
|
n = visit.pop(0)
|
|
|
for p in self.parents(n):
|
|
|
if p not in needed:
|
|
|
needed[p] = 1
|
|
|
visit.append(p)
|
|
|
else:
|
|
|
# count how many times we'll use this
|
|
|
needed[p] += 1
|
|
|
|
|
|
# sort by revision which is a topological order
|
|
|
visit = [ (self.rev(n), n) for n in needed.keys() ]
|
|
|
visit.sort()
|
|
|
hist = {}
|
|
|
|
|
|
for r,n in visit:
|
|
|
curr = decorate(self.read(n), self.linkrev(n))
|
|
|
for p in self.parents(n):
|
|
|
if p != nullid:
|
|
|
curr = pair(hist[p], curr)
|
|
|
# trim the history of unneeded revs
|
|
|
needed[p] -= 1
|
|
|
if not needed[p]:
|
|
|
del hist[p]
|
|
|
hist[n] = curr
|
|
|
|
|
|
return zip(hist[n][0], hist[n][1].splitlines(1))
|
|
|
|
