tests/autodiff.py
author Patrick Mezard <pmezard@gmail.com>
Thu, 19 May 2011 22:44:01 +0200
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child 14671 35c2cc322ba8
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# Extension dedicated to test patch.diff() upgrade modes
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#
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#
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from mercurial import scmutil, patch, util
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def autodiff(ui, repo, *pats, **opts):
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    diffopts = patch.diffopts(ui, opts)
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    git = opts.get('git', 'no')
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    brokenfiles = set()
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    losedatafn = None
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    if git in ('yes', 'no'):
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        diffopts.git = git == 'yes'
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        diffopts.upgrade = False
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    elif git == 'auto':
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        diffopts.git = False
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        diffopts.upgrade = True
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    elif git == 'warn':
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        diffopts.git = False
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        diffopts.upgrade = True
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        def losedatafn(fn=None, **kwargs):
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            brokenfiles.add(fn)
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            return True
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    elif git == 'abort':
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        diffopts.git = False
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        diffopts.upgrade = True
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        def losedatafn(fn=None, **kwargs):
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            raise util.Abort('losing data for %s' % fn)
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    else:
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        raise util.Abort('--git must be yes, no or auto')
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    node1, node2 = scmutil.revpair(repo, [])
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    m = scmutil.match(repo, pats, opts)
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    it = patch.diff(repo, node1, node2, match=m, opts=diffopts,
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                    losedatafn=losedatafn)
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    for chunk in it:
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        ui.write(chunk)
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    for fn in sorted(brokenfiles):
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        ui.write('data lost for: %s\n' % fn)
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cmdtable = {
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    "autodiff":
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        (autodiff,
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         [('', 'git', '', 'git upgrade mode (yes/no/auto/warn/abort)'),
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          ],
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         '[OPTION]... [FILE]...'),
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}