Mercurial > hg
view mercurial/filelog.py @ 37459:90c5ca718781
procutil: rewrite popen() as a subprocess.Popen wrapper (issue4746) (API)
os.popen() of Python 3 is not the popen() we want. First, it doesn't accept
command in bytes. Second, a returned stream is always wrapped by TextIO.
So we have to reimplement our popen(). Fortunately, this fixes the bug 4746
since ours returns an exit code compatible with explainexit().
.. api::
``procutil.popen()`` no longer supports text mode I/O.
author | Yuya Nishihara <yuya@tcha.org> |
---|---|
date | Sat, 07 Apr 2018 21:09:21 +0900 |
parents | 65250a66b55c |
children | 1541e1a8e87d |
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# filelog.py - file history class for mercurial # # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from __future__ import absolute_import from .thirdparty.zope import ( interface as zi, ) from . import ( repository, revlog, ) @zi.implementer(repository.ifilestorage) class filelog(revlog.revlog): def __init__(self, opener, path): super(filelog, self).__init__(opener, "/".join(("data", path + ".i")), censorable=True) # full name of the user visible file, relative to the repository root self.filename = path 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 add(self, text, meta, transaction, link, p1=None, p2=None): if meta or text.startswith('\1\n'): text = revlog.packmeta(meta, text) return self.addrevision(text, transaction, link, p1, p2) def renamed(self, node): if self.parents(node)[0] != revlog.nullid: return False t = self.revision(node) m = revlog.parsemeta(t)[0] if m and "copy" in m: return (m["copy"], revlog.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)) if self.iscensored(rev): return 0 # XXX if self.read(node).startswith("\1\n"), this returns (size+4) return super(filelog, self).size(rev) def cmp(self, node, text): """compare text with a given file revision returns True if text is different than what is stored. """ t = text if text.startswith('\1\n'): t = '\1\n\1\n' + text samehashes = not super(filelog, self).cmp(node, t) if samehashes: return False # censored files compare against the empty file if self.iscensored(self.rev(node)): return text != '' # renaming a file produces a different hash, even if the data # remains unchanged. Check if it's the case (slow): if self.renamed(node): t2 = self.read(node) return t2 != text return True