Mercurial > hg
view contrib/simplemerge @ 42175:cd1bede340b0 stable
setup: tweak error message for Python 3
We now have beta support for Python 3. In my opinion, it isn't
yet stable enough to allow `pip install Mercurial` to work with
Python 3 out of the box: we don't want people accidentally using
Mercurial with Python 3 just yet.
But I do think we should be more friendly about informing people
of their options.
This commit tweaks the error message that users see when running
setup.py with Python 3. We instruct them about the current level
of Python 3 support, point them at the wiki for more info, and
give them instructions on how to bypass the check.
As part of this, I also changed which version value is printed,
as we were printing a named tuple before.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sun, 21 Apr 2019 08:57:01 -0700 |
parents | d6b7c4e77bb4 |
children | 3c2799cbace4 |
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#!/usr/bin/env python from __future__ import absolute_import import getopt import sys import hgdemandimport hgdemandimport.enable() from mercurial.i18n import _ from mercurial import ( context, error, fancyopts, pycompat, simplemerge, ui as uimod, ) from mercurial.utils import ( procutil, ) options = [(b'L', b'label', [], _(b'labels to use on conflict markers')), (b'a', b'text', None, _(b'treat all files as text')), (b'p', b'print', None, _(b'print results instead of overwriting LOCAL')), (b'', b'no-minimal', None, _(b'no effect (DEPRECATED)')), (b'h', b'help', None, _(b'display help and exit')), (b'q', b'quiet', None, _(b'suppress output'))] usage = _(b'''simplemerge [OPTS] LOCAL BASE OTHER Simple three-way file merge utility with a minimal feature set. Apply to LOCAL the changes necessary to go from BASE to OTHER. By default, LOCAL is overwritten with the results of this operation. ''') class ParseError(Exception): """Exception raised on errors in parsing the command line.""" def showhelp(): pycompat.stdout.write(usage) pycompat.stdout.write(b'\noptions:\n') out_opts = [] for shortopt, longopt, default, desc in options: out_opts.append((b'%2s%s' % (shortopt and b'-%s' % shortopt, longopt and b' --%s' % longopt), b'%s' % desc)) opts_len = max([len(opt[0]) for opt in out_opts]) for first, second in out_opts: pycompat.stdout.write(b' %-*s %s\n' % (opts_len, first, second)) try: for fp in (sys.stdin, pycompat.stdout, sys.stderr): procutil.setbinary(fp) opts = {} try: bargv = [a.encode('utf8') for a in sys.argv[1:]] args = fancyopts.fancyopts(bargv, options, opts) except getopt.GetoptError as e: raise ParseError(e) if opts[b'help']: showhelp() sys.exit(0) if len(args) != 3: raise ParseError(_(b'wrong number of arguments').decode('utf8')) local, base, other = args sys.exit(simplemerge.simplemerge(uimod.ui.load(), context.arbitraryfilectx(local), context.arbitraryfilectx(base), context.arbitraryfilectx(other), **pycompat.strkwargs(opts))) except ParseError as e: if pycompat.ispy3: e = str(e).encode('utf8') pycompat.stdout.write(b"%s: %s\n" % (sys.argv[0].encode('utf8'), e)) showhelp() sys.exit(1) except error.Abort as e: pycompat.stderr.write(b"abort: %s\n" % e) sys.exit(255) except KeyboardInterrupt: sys.exit(255)