filelog.py
84 lines
| 2.5 KiB
| text/x-python
|
PythonLexer
/ mercurial / filelog.py
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r1089 | # filelog.py - file history class for mercurial | ||
# | ||||
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r4635 | # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> | ||
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r1089 | # | ||
# This software may be used and distributed according to the terms | ||||
# of the GNU General Public License, incorporated herein by reference. | ||||
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r6211 | from node import bin, nullid | ||
from revlog import revlog | ||||
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r3877 | import os | ||
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r1089 | |||
class filelog(revlog): | ||||
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r4258 | def __init__(self, opener, path): | ||
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r1089 | revlog.__init__(self, opener, | ||
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r4258 | "/".join(("data", self.encodedir(path + ".i")))) | ||
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r1089 | |||
# 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 | ||||
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r2579 | s = t.index('\1\n', 2) | ||
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r1089 | return t[s+2:] | ||
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r3123 | def _readmeta(self, node): | ||
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r1089 | t = self.revision(node) | ||
if not t.startswith('\1\n'): | ||||
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r1116 | return {} | ||
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r2579 | s = t.index('\1\n', 2) | ||
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r1089 | mt = t[2:s] | ||
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r1116 | m = {} | ||
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r1089 | 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() ] | ||||
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r1540 | text = "\1\n%s\1\n%s" % ("".join(mt), text) | ||
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r1089 | return self.addrevision(text, transaction, link, p1, p2) | ||
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r1116 | def renamed(self, node): | ||
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r1595 | if self.parents(node)[0] != nullid: | ||
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r1116 | return False | ||
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r3123 | m = self._readmeta(node) | ||
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r5915 | if m and "copy" in m: | ||
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r1116 | return (m["copy"], bin(m["copyrev"])) | ||
return False | ||||
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r2898 | def size(self, rev): | ||
"""return the size of a given revision""" | ||||
# for revisions with renames, we have to go the slow way | ||||
node = self.node(rev) | ||||
if self.renamed(node): | ||||
return len(self.read(node)) | ||||
return revlog.size(self, rev) | ||||
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r2887 | def cmp(self, node, text): | ||
"""compare text with a given file revision""" | ||||
# for renames, we have to go the slow way | ||||
if self.renamed(node): | ||||
t2 = self.read(node) | ||||
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r2895 | return t2 != text | ||
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r2887 | |||
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r2890 | return revlog.cmp(self, node, text) | ||