contrib/simplemerge
author Matt Mackall <mpm@selenic.com>
Wed, 22 Oct 2008 15:41:32 -0500
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#!/usr/bin/env python
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from mercurial import demandimport
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demandimport.enable()
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import os, sys
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from mercurial.i18n import _
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from mercurial import simplemerge, fancyopts, util
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options = [('L', 'label', [], _('labels to use on conflict markers')),
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           ('a', 'text', None, _('treat all files as text')),
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           ('p', 'print', None,
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            _('print results instead of overwriting LOCAL')),
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           ('', 'no-minimal', None,
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            _('do not try to minimize conflict regions')),
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           ('h', 'help', None, _('display help and exit')),
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           ('q', 'quiet', None, _('suppress output'))]
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usage = _('''simplemerge [OPTS] LOCAL BASE OTHER
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    Simple three-way file merge utility with a minimal feature set.
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    Apply to LOCAL the changes necessary to go from BASE to OTHER.
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    By default, LOCAL is overwritten with the results of this operation.
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''')
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class ParseError(Exception):
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    """Exception raised on errors in parsing the command line."""
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def showhelp():
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    sys.stdout.write(usage)
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    sys.stdout.write('\noptions:\n')
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    out_opts = []
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    for shortopt, longopt, default, desc in options:
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        out_opts.append(('%2s%s' % (shortopt and '-%s' % shortopt,
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                                    longopt and ' --%s' % longopt),
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                         '%s' % desc))
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    opts_len = max([len(opt[0]) for opt in out_opts])
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    for first, second in out_opts:
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        sys.stdout.write(' %-*s  %s\n' % (opts_len, first, second))
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try:
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    for fp in (sys.stdin, sys.stdout, sys.stderr):
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        util.set_binary(fp)
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    opts = {}
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    try:
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        args = fancyopts.fancyopts(sys.argv[1:], options, opts)
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    except fancyopts.getopt.GetoptError, e:
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        raise ParseError(e)
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    if opts['help']:
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        showhelp()
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        sys.exit(0)
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    if len(args) != 3:
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            raise ParseError(_('wrong number of arguments'))
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    sys.exit(simplemerge.simplemerge(*args, **opts))
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except ParseError, e:
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    sys.stdout.write("%s: %s\n" % (sys.argv[0], e))
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    showhelp()
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    sys.exit(1)
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except util.Abort, e:
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    sys.stderr.write("abort: %s\n" % e)
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    sys.exit(255)
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except KeyboardInterrupt:
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    sys.exit(255)