comparison contrib/simplemerge @ 33903:ed6f64173121

contrib: make simplemerge script pass context-like objects

`simplemerge()` will soon require context-like objects to work. Create a simple
context-like object that wraps the requested files and can be passed to the new
API.

Differential Revision: https://phab.mercurial-scm.org/D378

33902:f39ba8237ed6

                         '%s' % desc))
    opts_len = max([len(opt[0]) for opt in out_opts])
    for first, second in out_opts:
        sys.stdout.write(' %-*s  %s\n' % (opts_len, first, second))

try:
    for fp in (sys.stdin, sys.stdout, sys.stderr):
        util.setbinary(fp)

    opts = {}

    if opts['help']:
        showhelp()
        sys.exit(0)
    if len(args) != 3:
            raise ParseError(_('wrong number of arguments'))
    sys.exit(simplemerge.simplemerge(uimod.ui.load(), *args, **opts))
except ParseError as e:
    sys.stdout.write("%s: %s\n" % (sys.argv[0], e))
    showhelp()
    sys.exit(1)
except error.Abort as e:

33903:ed6f64173121

                         '%s' % desc))
    opts_len = max([len(opt[0]) for opt in out_opts])
    for first, second in out_opts:
        sys.stdout.write(' %-*s  %s\n' % (opts_len, first, second))

class filebackedctx(object):
    """simplemerge requires context-like objects"""
    def __init__(self, path):
        self._path = path

    def decodeddata(self):
        with open(self._path, "rb") as f:
            return f.read()

    def flags(self):
        return ''

    def path(self):
        return self._path

    def write(self, data, flags):
        assert not flags
        with open(self._path, "w") as f:
            f.write(data)

try:
    for fp in (sys.stdin, sys.stdout, sys.stderr):
        util.setbinary(fp)

    opts = {}

    if opts['help']:
        showhelp()
        sys.exit(0)
    if len(args) != 3:
            raise ParseError(_('wrong number of arguments'))
    local, base, other = args
    sys.exit(simplemerge.simplemerge(uimod.ui.load(),
                                     local,
                                     base,
                                     other,
                                     filebackedctx(local),
                                     filebackedctx(base),
                                     filebackedctx(other),
                                     filtereddata=True,
                                     **opts))
except ParseError as e:
    sys.stdout.write("%s: %s\n" % (sys.argv[0], e))
    showhelp()
    sys.exit(1)
except error.Abort as e: