view mercurial/ui.py @ 224:ccbcc4d76f81

fix bad assumption about uniqueness of file versions

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

fix bad assumption about uniqueness of file versions

Mercurial had assumed that a given file hash could show up in only one
changeset, and thus that the mapping from file revision to changeset
was 1-to-1. But if two people perform the same edit with the same
parents, we can get an identical hash in different changesets.

So we've got to loosen up our uniqueness checks in addgroup and in
verify.

manifest hash: 5462003241e7d071ffa1741b87a59f646c9988ed
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.0 (GNU/Linux)

iD8DBQFCoMDkywK+sNU5EO8RAg9PAJ9YWSknfFBoeYve/+Z5DDGGvytDkwCgoMwj
kT01PcjNzGPr1/Oe5WRvulE=
=HC4t
-----END PGP SIGNATURE-----

# ui.py - user interface bits for mercurial
#
# Copyright 2005 Matt Mackall <[e-mail]>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.

import os, tempfile, sys, re

class ui:
    def __init__(self, verbose=False, debug=False, quiet=False,
                 interactive=True):
        self.quiet = quiet and not verbose and not debug
        self.verbose = verbose or debug
        self.debugflag = debug
        self.interactive = interactive
    def write(self, *args):
        for a in args:
            sys.stdout.write(str(a))
    def readline(self):
        return sys.stdin.readline()[:-1]
    def prompt(self, msg, pat, default = "y"):
        if not self.interactive: return default
        while 1:
            self.write(msg, " ")
            r = self.readline()
            if re.match(pat, r):
                return r
            else:
                self.write("unrecognized response\n")
    def status(self, *msg):
        if not self.quiet: self.write(*msg)
    def warn(self, msg):
        self.write(*msg)
    def note(self, *msg):
        if self.verbose: self.write(*msg)
    def debug(self, *msg):
        if self.debugflag: self.write(*msg)
    def edit(self, text):
        (fd, name) = tempfile.mkstemp("hg")
        f = os.fdopen(fd, "w")
        f.write(text)
        f.close()

        editor = os.environ.get("HGEDITOR") or os.environ.get("EDITOR", "vi")
        r = os.system("%s %s" % (editor, name))

        if r:
            raise "Edit failed!"

        t = open(name).read()
        t = re.sub("(?m)^HG:.*\n", "", t)

        return t