author | Nicolas Dumazet <nicdumz.commits@gmail.com> |
Fri, 09 Jul 2010 11:02:39 +0900 | |
branch | stable |
changeset 11539 | a463e3c50212 |
parent 10706 | d8d1b56d4519 |
child 11540 | 2370e270a29a |
permissions | -rw-r--r-- |
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# filelog.py - file history class for mercurial |
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# |
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# Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
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# |
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# This software may be used and distributed according to the terms of the |
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# GNU General Public License version 2 or any later version. |
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import revlog |
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class filelog(revlog.revlog): |
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def __init__(self, opener, path): |
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revlog.revlog.__init__(self, opener, |
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"/".join(("data", path + ".i"))) |
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def read(self, node): |
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t = self.revision(node) |
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if not t.startswith('\1\n'): |
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return t |
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s = t.index('\1\n', 2) |
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return t[s + 2:] |
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def _readmeta(self, node): |
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t = self.revision(node) |
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if not t.startswith('\1\n'): |
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return {} |
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s = t.index('\1\n', 2) |
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mt = t[2:s] |
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m = {} |
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for l in mt.splitlines(): |
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k, v = l.split(": ", 1) |
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m[k] = v |
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return m |
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def add(self, text, meta, transaction, link, p1=None, p2=None): |
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if meta or text.startswith('\1\n'): |
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mt = ["%s: %s\n" % (k, v) for k, v in sorted(meta.iteritems())] |
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text = "\1\n%s\1\n%s" % ("".join(mt), text) |
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return self.addrevision(text, transaction, link, p1, p2) |
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def renamed(self, node): |
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if self.parents(node)[0] != revlog.nullid: |
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return False |
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m = self._readmeta(node) |
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if m and "copy" in m: |
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return (m["copy"], revlog.bin(m["copyrev"])) |
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return False |
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def size(self, rev): |
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"""return the size of a given revision""" |
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# for revisions with renames, we have to go the slow way |
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node = self.node(rev) |
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if self.renamed(node): |
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return len(self.read(node)) |
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return revlog.revlog.size(self, rev) |
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def cmp(self, node, text): |
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"""compare text with a given file revision |
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returns True if text is different than what is stored. |
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""" |
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# for renames, we have to go the slow way |
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if text.startswith('\1\n') or self.renamed(node): |
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t2 = self.read(node) |
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return t2 != text |
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return revlog.revlog.cmp(self, node, text) |