Example #1
0
File: hide.py Project: leszfb/eden
def hide(ui, repo, *revs, **opts):
    """hide commits and their descendants

    Mark the specified commits as hidden. Hidden commits are not included in
    the output of most Mercurial commands, including :hg:`log` and
    :hg:`smartlog.` Any descendants of the specified commits will also be
    hidden.

    Hidden commits are not deleted. They will remain in the repo indefinitely
    and are still accessible by their hashes. However, :hg:`hide` will delete
    any bookmarks pointing to hidden commits.

    Use the :hg:`unhide` command to make hidden commits visible again. See
    :hg:`help unhide` for more information.

    To view hidden commits, run :hg:`journal`.

    When you hide the current commit, the most recent visible ancestor is
    checked out.

    To hide obsolete stacks (stacks that have a newer version), run
    :hg:`hide --cleanup`. This command is equivalent to:

    :hg:`hide 'obsolete() - ancestors(draft() & not obsolete())'`

    --cleanup skips obsolete commits with non-obsolete descendants.
    """
    if opts.get("cleanup") and len(opts.get("rev") + list(revs)) != 0:
        raise error.Abort(_("--rev and --cleanup are incompatible"))
    elif opts.get("cleanup"):
        # hides all the draft, obsolete commits that
        # don't have non-obsolete descendants
        revs = ["obsolete() - (draft() & ::(draft() & not obsolete()))"]
    else:
        revs = list(revs) + opts.pop("rev", [])

    with repo.wlock(), repo.lock(), repo.transaction("hide") as tr:
        revs = repo.revs("(%ld)::", scmutil.revrange(repo, revs))

        bookmarks = set(opts.get("bookmark", ()))
        if bookmarks:
            revs += bookmarksmod.reachablerevs(repo, bookmarks)
            if not revs:
                # No revs are reachable exclusively from these bookmarks, just
                # delete the bookmarks.
                if not ui.quiet:
                    for bookmark in sorted(bookmarks):
                        ui.status(
                            _("removing bookmark '%s' (was at: %s)\n")
                            % (bookmark, short(repo._bookmarks[bookmark]))
                        )
                bookmarksmod.delete(repo, tr, bookmarks)
                ui.status(
                    _n(
                        "%i bookmark removed\n",
                        "%i bookmarks removed\n",
                        len(bookmarks),
                    )
                    % len(bookmarks)
                )
                return 0

        if not revs:
            raise error.Abort(_("nothing to hide"))

        hidectxs = [repo[r] for r in revs]

        # revs to be hidden
        for ctx in hidectxs:
            if not ctx.mutable():
                raise error.Abort(
                    _("cannot hide immutable changeset: %s") % ctx,
                    hint="see 'hg help phases' for details",
                )
            if not ui.quiet:
                ui.status(
                    _('hiding commit %s "%s"\n')
                    % (ctx, ctx.description().split("\n")[0][:50])
                )

        wdp = repo["."]
        newnode = wdp

        while newnode in hidectxs:
            newnode = newnode.parents()[0]

        if newnode.node() != wdp.node():
            cmdutil.bailifchanged(repo, merge=False)
            hg.update(repo, newnode, False)
            ui.status(
                _("working directory now at %s\n") % ui.label(str(newnode), "node")
            )

        # create markers
        if obsolete.isenabled(repo, obsolete.createmarkersopt):
            obsolete.createmarkers(repo, [(r, []) for r in hidectxs], operation="hide")
        visibility.remove(repo, [c.node() for c in hidectxs])
        ui.status(
            _n("%i changeset hidden\n", "%i changesets hidden\n", len(hidectxs))
            % len(hidectxs)
        )

        # remove bookmarks pointing to hidden changesets
        hnodes = [r.node() for r in hidectxs]
        deletebookmarks = set(bookmarks)
        for bookmark, node in sorted(bookmarksmod.listbinbookmarks(repo)):
            if node in hnodes:
                deletebookmarks.add(bookmark)
        if deletebookmarks:
            for bookmark in sorted(deletebookmarks):
                if not ui.quiet:
                    ui.status(
                        _('removing bookmark "%s (was at: %s)"\n')
                        % (bookmark, short(repo._bookmarks[bookmark]))
                    )
            bookmarksmod.delete(repo, tr, deletebookmarks)
            ui.status(
                _n(
                    "%i bookmark removed\n",
                    "%i bookmarks removed\n",
                    len(deletebookmarks),
                )
                % len(deletebookmarks)
            )
        hintutil.trigger("undo")
Example #2
0
def prune(ui, repo, *revs, **opts):
    """hide changesets by marking them obsolete

    Pruned changesets are obsolete with no successors. If they also have no
    descendants, they are hidden (invisible to all commands).

    Non-obsolete descendants of pruned changesets become "unstable". Use
    :hg:`evolve` to handle this situation.

    When you prune the parent of your working copy, Mercurial updates the
    working copy to a non-obsolete parent.

    You can use ``--succ`` to tell Mercurial that a newer version (successor)
    of the pruned changeset exists. Mercurial records successor revisions in
    obsolescence markers.

    You can use the ``--biject`` option to specify a 1-1 mapping (bijection)
    between revisions to pruned (precursor) and successor changesets. This
    option may be removed in a future release (with the functionality provided
    automatically).

    If you specify multiple revisions in ``--succ``, you are recording a
    "split" and must acknowledge it by passing ``--split``. Similarly, when you
    prune multiple changesets with a single successor, you must pass the
    ``--fold`` option.
    """
    if opts.get("keep", False):
        hint = "strip-uncommit"
    else:
        hint = "strip-hide"
    hintutil.trigger(hint)

    revs = scmutil.revrange(repo, list(revs) + opts.get("rev", []))
    succs = opts.get("succ", [])
    bookmarks = set(opts.get("bookmark", ()))
    metadata = _getmetadata(**opts)
    biject = opts.get("biject")
    fold = opts.get("fold")
    split = opts.get("split")

    options = [o for o in ("biject", "fold", "split") if opts.get(o)]
    if 1 < len(options):
        raise error.Abort(_("can only specify one of %s") % ", ".join(options))

    if bookmarks:
        revs += bookmarksmod.reachablerevs(repo, bookmarks)
        if not revs:
            # No revs are reachable exclusively from these bookmarks, just
            # delete the bookmarks.
            with repo.wlock(), repo.lock(), repo.transaction(
                    "prune-bookmarks") as tr:
                bookmarksmod.delete(repo, tr, bookmarks)
            for bookmark in sorted(bookmarks):
                ui.write(_("bookmark '%s' deleted\n") % bookmark)
            return 0

    if not revs:
        raise error.Abort(_("nothing to prune"))

    wlock = lock = tr = None
    try:
        wlock = repo.wlock()
        lock = repo.lock()
        tr = repo.transaction("prune")
        # defines pruned changesets
        precs = []
        revs.sort()
        for p in revs:
            cp = repo[p]
            if not cp.mutable():
                # note: createmarkers() would have raised something anyway
                raise error.Abort(
                    "cannot prune immutable changeset: %s" % cp,
                    hint="see 'hg help phases' for details",
                )
            precs.append(cp)
        if not precs:
            raise error.Abort("nothing to prune")

        # defines successors changesets
        sucs = scmutil.revrange(repo, succs)
        sucs.sort()
        sucs = tuple(repo[n] for n in sucs)
        if not biject and len(sucs) > 1 and len(precs) > 1:
            msg = "Can't use multiple successors for multiple precursors"
            hint = _("use --biject to mark a series as a replacement"
                     " for another")
            raise error.Abort(msg, hint=hint)
        elif biject and len(sucs) != len(precs):
            msg = "Can't use %d successors for %d precursors" % (len(sucs),
                                                                 len(precs))
            raise error.Abort(msg)
        elif (len(precs) == 1 and len(sucs) > 1) and not split:
            msg = "please add --split if you want to do a split"
            raise error.Abort(msg)
        elif len(sucs) == 1 and len(precs) > 1 and not fold:
            msg = "please add --fold if you want to do a fold"
            raise error.Abort(msg)
        elif biject:
            relations = [(p, (s, )) for p, s in zip(precs, sucs)]
        else:
            relations = [(p, sucs) for p in precs]

        wdp = repo["."]

        if len(sucs) == 1 and len(precs) == 1 and wdp in precs:
            # '.' killed, so update to the successor
            newnode = sucs[0]
        else:
            # update to an unkilled parent
            newnode = wdp

            while newnode in precs or newnode.obsolete():
                newnode = newnode.parents()[0]

        if newnode.node() != wdp.node():
            if opts.get("keep", False):
                # This is largely the same as the implementation in
                # strip.stripcmd(). We might want to refactor this somewhere
                # common at some point.

                # only reset the dirstate for files that would actually change
                # between the working context and uctx
                descendantrevs = repo.revs("%d::." % newnode.rev())
                changedfiles = []
                for rev in descendantrevs:
                    # blindly reset the files, regardless of what actually
                    # changed
                    changedfiles.extend(repo[rev].files())

                # reset files that only changed in the dirstate too
                dirstate = repo.dirstate
                dirchanges = [f for f in dirstate if dirstate[f] != "n"]
                changedfiles.extend(dirchanges)
                repo.dirstate.rebuild(newnode.node(), newnode.manifest(),
                                      changedfiles)
                dirstate.write(tr)
            else:
                bookactive = repo._activebookmark
                # Active bookmark that we don't want to delete (with -B option)
                # we deactivate and move it before the update and reactivate it
                # after
                movebookmark = bookactive and not bookmarks
                if movebookmark:
                    bookmarksmod.deactivate(repo)
                    changes = [(bookactive, newnode.node())]
                    repo._bookmarks.applychanges(repo, tr, changes)
                commands.update(ui, repo, newnode.hex())
                ui.status(
                    _("working directory now at %s\n") %
                    ui.label(str(newnode), "evolve.node"))
                if movebookmark:
                    bookmarksmod.activate(repo, bookactive)

        # update bookmarks
        if bookmarks:
            with repo.wlock(), repo.lock(), repo.transaction(
                    "prune-bookmarks") as tr:
                bookmarksmod.delete(repo, tr, bookmarks)
            for bookmark in sorted(bookmarks):
                ui.write(_("bookmark '%s' deleted\n") % bookmark)

        # create markers
        obsolete.createmarkers(repo,
                               relations,
                               metadata=metadata,
                               operation="prune")

        # hide nodes
        visibility.remove(repo, [c.node() for c in precs])

        # informs that changeset have been pruned
        ui.status(_("%i changesets pruned\n") % len(precs))

        for ctx in repo.set("bookmark() and %ld", precs):
            # used to be:
            #
            #   ldest = list(repo.set('max((::%d) - obsolete())', ctx))
            #   if ldest:
            #      c = ldest[0]
            #
            # but then revset took a lazy arrow in the knee and became much
            # slower. The new forms makes as much sense and a much faster.
            for dest in ctx.ancestors():
                if not dest.obsolete():
                    updatebookmarks = common.bookmarksupdater(repo, ctx.node())
                    updatebookmarks(dest.node())
                    break

        tr.close()
    finally:
        lockmod.release(tr, lock, wlock)