comparison hgext/evolve.py @ 1058:00bc31523074

uncommit: add a --rev argument

The uncommit command now taks a --rev argument. This lets restore the file
content in the current commit to another revision (instead of just is parent
content). This still does not touch the working directory content.\

This allow the longly awaited:

  hg uncommit --hidden --rev 'precursors(.)'

1056:edfb9a0ad085

        opts['message'] = repo['.'].description()
    _resolveoptions(ui, opts)
    _alias, commitcmd = cmdutil.findcmd('commit', commands.table)
    return commitcmd[0](ui, repo, *pats, **opts)

def _commitfiltered(repo, ctx, match):
    """Recommit ctx with changed files not in match. Return the new
    node identifier, or None if nothing changed.
    """
    base = ctx.p1()
    m, a, r = repo.status(base, ctx)[:3]
    allfiles = set(m + a + r)
    files = set(f for f in allfiles if not match(f))
    if files == allfiles:
        return None

    # Filter copies
    copied = copies.pathcopies(base, ctx)
    copied = dict((src, dst) for src, dst in copied.iteritems()
                  if dst in files)
    def filectxfn(repo, memctx, path):
        if path not in ctx:
            raise IOError()
        fctx = ctx[path]
        flags = fctx.flags()
        mctx = memfilectx(repo, fctx.path(), fctx.data(),
                          islink='l' in flags,
                          isexec='x' in flags,
                          copied=copied.get(path))

            src = None
        ds.copy(src, dst)

@command('^uncommit',
    [('a', 'all', None, _('uncommit all changes when no arguments given')),
     ] + commands.walkopts,
    _('[OPTION]... [NAME]'))
def uncommit(ui, repo, *pats, **opts):
    """move changes from parent revision to working directory

    without the selected changes is created, becomes the checked out
    revision, and obsoletes the previous one.

    The --include option specifies patterns to uncommit.
    The --exclude option specifies patterns to keep in the commit.

    Return 0 if changed files are uncommitted.
    """

    wlock = lock = tr = None

        if len(old.parents()) > 1:
            raise util.Abort(_("cannot uncommit merge changeset"))
        oldphase = old.phase()
        updatebookmarks = _bookmarksupdater(repo, old.node())

        # Recommit the filtered changeset
        tr = repo.transaction('uncommit')
        newid = None
        if (pats or opts.get('include') or opts.get('exclude')
            or opts.get('all')):
            match = scmutil.match(old, pats, opts)
            newid = _commitfiltered(repo, old, match)
        if newid is None:
            raise util.Abort(_('nothing to uncommit'),
                             hint=_("use --all to uncommit all files"))
        # Move local changes on filtered changeset
        createmarkers(repo, [(old, (repo[newid],))])

1058:00bc31523074

        opts['message'] = repo['.'].description()
    _resolveoptions(ui, opts)
    _alias, commitcmd = cmdutil.findcmd('commit', commands.table)
    return commitcmd[0](ui, repo, *pats, **opts)


def _touchedbetween(repo, source, dest, match=None):
    touched = set()
    for files in repo.status(source, dest, match=match)[:3]:
        touched.update(files)
    return touched

def _commitfiltered(repo, ctx, match, target=None):
    """Recommit ctx with changed files not in match. Return the new
    node identifier, or None if nothing changed.
    """
    base = ctx.p1()
    if target is None:
        target = base
    # ctx
    initialfiles = _touchedbetween(repo, base, ctx)
    if base == target:
        affected = set(f for f in initialfiles if match(f))
        newcontent = set()
    else:
        affected = _touchedbetween(repo, target, ctx, match=match)
        newcontent = _touchedbetween(repo, target, base, match=match)
    # The commit touchs all existing files
    # + all file that needs a new content
    # - the file affected bny uncommit with the same content than base.
    files = (initialfiles - affected) | newcontent
    if not newcontent and files == initialfiles:
        return None

    # Filter copies
    copied = copies.pathcopies(target, ctx)
    copied = dict((src, dst) for src, dst in copied.iteritems()
                  if dst in files)
    def filectxfn(repo, memctx, path, contentctx=ctx, redirect=newcontent):
        if path in redirect:
            return filectxfn(repo, memctx, path, contentctx=target, redirect=())
        if path not in contentctx:
            raise IOError()
        fctx = contentctx[path]
        flags = fctx.flags()
        mctx = memfilectx(repo, fctx.path(), fctx.data(),
                          islink='l' in flags,
                          isexec='x' in flags,
                          copied=copied.get(path))

            src = None
        ds.copy(src, dst)

@command('^uncommit',
    [('a', 'all', None, _('uncommit all changes when no arguments given')),
     ('r', 'rev', '', _('revert commit content to REV instead')),
     ] + commands.walkopts,
    _('[OPTION]... [NAME]'))
def uncommit(ui, repo, *pats, **opts):
    """move changes from parent revision to working directory

    without the selected changes is created, becomes the checked out
    revision, and obsoletes the previous one.

    The --include option specifies patterns to uncommit.
    The --exclude option specifies patterns to keep in the commit.

    The --rev argument let you change the commit file to a content of another
    revision. It still does not change the content of your file in the working
    directory.

    Return 0 if changed files are uncommitted.
    """

    wlock = lock = tr = None

        if len(old.parents()) > 1:
            raise util.Abort(_("cannot uncommit merge changeset"))
        oldphase = old.phase()
        updatebookmarks = _bookmarksupdater(repo, old.node())


        rev = None
        if opts.get('rev'):
            rev = scmutil.revsingle(repo, opts.get('rev'))

        # Recommit the filtered changeset
        tr = repo.transaction('uncommit')
        newid = None
        if (pats or opts.get('include') or opts.get('exclude')
            or opts.get('all')):
            match = scmutil.match(old, pats, opts)
            newid = _commitfiltered(repo, old, match, target=rev)
        if newid is None:
            raise util.Abort(_('nothing to uncommit'),
                             hint=_("use --all to uncommit all files"))
        # Move local changes on filtered changeset
        createmarkers(repo, [(old, (repo[newid],))])