view tests/autodiff.py @ 19636:6bbce5efc67b

mq: look for modified subrepos when checking for local changes

It was possible to apply, unapply, fold, patches (etc) with modified subrepos,
which resulted in surprising behavior. For example it was easy to apply a patch
with a modified subrepo, and then the refresh it and accidentally end up
including the modified subrepo on the refreshed patch.

A test has been added to verify this new check.


# HG changeset patch
# User Angel Ezquerra <[e-mail]>
# Date 1375742979 -7200
#      Tue Aug 06 00:49:39 2013 +0200
# Node ID a5c90acff5e61aae714ba6c9457d766c54b4f124
# Parent  6ac206fb6f27492a98f46bbff090407ee1b1de72
mq: look for modified subrepos when checking for local changes

It was possible to apply, unapply, fold, patches (etc) with modified subrepos,
which resulted in surprising behavior. For example it was easy to apply a patch
with a modified subrepo, and then the refresh it and accidentally end up
including the modified subrepo on the refreshed patch.

A test has been added to verify this new check.

# Extension dedicated to test patch.diff() upgrade modes
#
#
from mercurial import scmutil, patch, util

def autodiff(ui, repo, *pats, **opts):
    diffopts = patch.diffopts(ui, opts)
    git = opts.get('git', 'no')
    brokenfiles = set()
    losedatafn = None
    if git in ('yes', 'no'):
        diffopts.git = git == 'yes'
        diffopts.upgrade = False
    elif git == 'auto':
        diffopts.git = False
        diffopts.upgrade = True
    elif git == 'warn':
        diffopts.git = False
        diffopts.upgrade = True
        def losedatafn(fn=None, **kwargs):
            brokenfiles.add(fn)
            return True
    elif git == 'abort':
        diffopts.git = False
        diffopts.upgrade = True
        def losedatafn(fn=None, **kwargs):
            raise util.Abort('losing data for %s' % fn)
    else:
        raise util.Abort('--git must be yes, no or auto')

    node1, node2 = scmutil.revpair(repo, [])
    m = scmutil.match(repo[node2], pats, opts)
    it = patch.diff(repo, node1, node2, match=m, opts=diffopts,
                    losedatafn=losedatafn)
    for chunk in it:
        ui.write(chunk)
    for fn in sorted(brokenfiles):
        ui.write(('data lost for: %s\n' % fn))

cmdtable = {
    "autodiff":
        (autodiff,
         [('', 'git', '', 'git upgrade mode (yes/no/auto/warn/abort)'),
          ],
         '[OPTION]... [FILE]...'),
}