Mercurial > hg > mercurial-crew-with-dirclash
view mercurial/filelog.py @ 3755:05120e210c65
Use unsigned version format.
This way can use one additional bit, and when encountering invalid revlogs
with the first bit set don't produce python warnings or strange error messages.
author | Thomas Arendsen Hein <thomas@intevation.de> |
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date | Fri, 01 Dec 2006 23:27:53 +0100 |
parents | 9a478efc16cc |
children | 66a17364c30e 630caaf29815 |
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# filelog.py - file history class for mercurial # # Copyright 2005, 2006 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(), "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.index('\1\n', 2) return t[s+2:] def _readmeta(self, node): t = self.revision(node) if not t.startswith('\1\n'): return {} s = t.index('\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 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) 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) return t2 != text return revlog.cmp(self, node, text)