hgbook-untested / contrib / hg-interdiff

Dongsheng Song 2180358 











































#!/usr/bin/env python
#
# Adapter for using interdiff with mercurial's extdiff extension.
#
# Copyright 2006 Bryan O'Sullivan <bos@serpentine.com>
#
# This software may be used and distributed according to the terms of
# the GNU General Public License, incorporated herein by reference.

import os, sys

def walk(base):
    # yield all non-directories below the base path.
    for root, dirs, files in os.walk(base):
        for f in files:
            path = os.path.join(root, f)
            yield path[len(base)+1:], path
    else:
        if os.path.isfile(base):
            yield '', base

# create list of unique file names under both directories.
files = dict(walk(sys.argv[1]))
files.update(walk(sys.argv[2]))
files = files.keys()
files.sort()

def name(base, f):
    if f:
        path = os.path.join(base, f)
    else:
        path = base
    # interdiff requires two files; use /dev/null if one is missing.
    if os.path.exists(path):
        return path
    return '/dev/null'

ret = 0

for f in files:
    if os.system('interdiff "%s" "%s"' % (name(sys.argv[1], f),
                                          name(sys.argv[2], f))):
        ret = 1

sys.exit(ret)
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