Mercurial > hg
view contrib/simplemerge @ 24995:0579b0c2ea2b
tryimportone: use dirstateguard instead of beginparentchange/endparentchange
To fix the issue that the recent (in memory) dirstate isn't visible to
external process (e.g. "precommit" hook), a subsequent patch makes
"localrepository.commit()" invoke "dirstate.write()" in it.
This change will make "beginparentchange()" and "endparentchange()" on
dirstate in "cmdutil.tryimportone()" meaningless, because:
- "dirstate.write()" writes changed data into ".hg/dirstate", but
- aborting between "beginparentchange()" and "endparentchange()"
doesn't cause any restoring ".hg/dirstate"
it just discards changes in memory.
This patch uses "dirstateguard" instead of "beginparentchange()" and
"endparentchange()" in "cmdutil.tryimportone()" to restore
".hg/dirstate" during a failure even if "dirstate.write()" is executed
before a failure.
This patch uses "lockmod.release(dsguard)" instead of
"dsguard.release()", because processing may be aborted before
assignment to "dsguard" , and the "if dsguard" examination for safety is
redundant.
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
---|---|
date | Thu, 07 May 2015 12:07:11 +0900 |
parents | f18830651811 |
children | 56b2bcea2529 |
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#!/usr/bin/env python from mercurial import demandimport demandimport.enable() import sys from mercurial.i18n import _ from mercurial import simplemerge, fancyopts, util, ui options = [('L', 'label', [], _('labels to use on conflict markers')), ('a', 'text', None, _('treat all files as text')), ('p', 'print', None, _('print results instead of overwriting LOCAL')), ('', 'no-minimal', None, _('no effect (DEPRECATED)')), ('h', 'help', None, _('display help and exit')), ('q', 'quiet', None, _('suppress output'))] usage = _('''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(): sys.stdout.write(usage) sys.stdout.write('\noptions:\n') out_opts = [] for shortopt, longopt, default, desc in options: out_opts.append(('%2s%s' % (shortopt and '-%s' % shortopt, longopt and ' --%s' % longopt), '%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 = {} try: args = fancyopts.fancyopts(sys.argv[1:], options, opts) except fancyopts.getopt.GetoptError, e: raise ParseError(e) if opts['help']: showhelp() sys.exit(0) if len(args) != 3: raise ParseError(_('wrong number of arguments')) sys.exit(simplemerge.simplemerge(ui.ui(), *args, **opts)) except ParseError, e: sys.stdout.write("%s: %s\n" % (sys.argv[0], e)) showhelp() sys.exit(1) except util.Abort, e: sys.stderr.write("abort: %s\n" % e) sys.exit(255) except KeyboardInterrupt: sys.exit(255)