Mercurial > hg
view tests/test-rebase-emptycommit.t @ 47072:4c041c71ec01
revlog: introduce an explicit tracking of what the revlog is about
Since the dawn of time, people have been forced to rely to lossy introspection
of the index filename to determine what the purpose and role of the revlog they
encounter is. This is hacky, error prone, inflexible, abstraction-leaky,
<insert-your-own-complaints-here>.
In f63299ee7e4d Raphaël introduced a new attribute to track this information:
`revlog_kind`. However it is initialized in an odd place and various instances
end up not having it set. In addition is only tracking some of the information
we end up having to introspect in various pieces of code.
So we add a new attribute that holds more data and is more strictly enforced.
This work is done in collaboration with Raphaël.
The `revlog_kind` one will be removed/adapted in the next changeset. We expect
to be able to clean up various existing piece of code and to simplify coming
work around the newer revlog format.
Differential Revision: https://phab.mercurial-scm.org/D10352
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Tue, 06 Apr 2021 05:20:24 +0200 |
parents | e9555305c5c6 |
children |
line wrap: on
line source
$ cat >> $HGRCPATH<<EOF > [extensions] > rebase= > drawdag=$TESTDIR/drawdag.py > EOF $ hg init non-merge $ cd non-merge $ hg debugdrawdag<<'EOS' > F > | > E > | > D > | > B C > |/ > A > EOS $ for i in C D E F; do > hg bookmark -r $i -i BOOK-$i > done $ hg debugdrawdag<<'EOS' > E > | > D > | > B > EOS $ hg log -G -T '{rev} {desc} {bookmarks}' o 7 E | o 6 D | | o 5 F BOOK-F | | | o 4 E BOOK-E | | | o 3 D BOOK-D | | | o 2 C BOOK-C | | o | 1 B |/ o 0 A With --keep, bookmark should move $ hg rebase -r 3+4 -d E --keep rebasing 3:e7b3f00ed42e BOOK-D "D" note: not rebasing 3:e7b3f00ed42e BOOK-D "D", its destination already has all its changes rebasing 4:69a34c08022a BOOK-E "E" note: not rebasing 4:69a34c08022a BOOK-E "E", its destination already has all its changes $ hg log -G -T '{rev} {desc} {bookmarks}' o 7 E BOOK-D BOOK-E | o 6 D | | o 5 F BOOK-F | | | o 4 E | | | o 3 D | | | o 2 C BOOK-C | | o | 1 B |/ o 0 A Move D and E back for the next test $ hg bookmark BOOK-D -fqir 3 $ hg bookmark BOOK-E -fqir 4 Bookmark is usually an indication of a head. For changes that are introduced by an ancestor of bookmark B, after moving B to B-NEW, the changes are ideally still introduced by an ancestor of changeset on B-NEW. In the below case, "BOOK-D", and "BOOK-E" include changes introduced by "C". $ hg rebase -s 2 -d E rebasing 2:dc0947a82db8 BOOK-C C "C" rebasing 3:e7b3f00ed42e BOOK-D "D" note: not rebasing 3:e7b3f00ed42e BOOK-D "D", its destination already has all its changes rebasing 4:69a34c08022a BOOK-E "E" note: not rebasing 4:69a34c08022a BOOK-E "E", its destination already has all its changes rebasing 5:6b2aeab91270 BOOK-F F "F" saved backup bundle to $TESTTMP/non-merge/.hg/strip-backup/dc0947a82db8-52bb4973-rebase.hg $ hg log -G -T '{rev} {desc} {bookmarks}' o 5 F BOOK-F | o 4 C BOOK-C BOOK-D BOOK-E | o 3 E | o 2 D | o 1 B | o 0 A Merge and its ancestors all become empty $ hg init $TESTTMP/merge1 $ cd $TESTTMP/merge1 $ hg debugdrawdag<<'EOS' > E > /| > B C D > \|/ > A > EOS $ for i in C D E; do > hg bookmark -r $i -i BOOK-$i > done $ hg debugdrawdag<<'EOS' > H > | > D > | > C > | > B > EOS Previously, there was a bug where the empty commit check compared the parent branch name with the wdir branch name instead of the actual branch name (which should stay unchanged if --keepbranches is passed), and erroneously assumed that an otherwise empty changeset should be created because of the incorrectly assumed branch name change. $ hg update H -q $ hg branch foo -q $ hg rebase -r '(A::)-(B::)-A' -d H --keepbranches rebasing 2:dc0947a82db8 BOOK-C "C" note: not rebasing 2:dc0947a82db8 BOOK-C "C", its destination already has all its changes rebasing 3:b18e25de2cf5 BOOK-D "D" note: not rebasing 3:b18e25de2cf5 BOOK-D "D", its destination already has all its changes rebasing 4:86a1f6686812 BOOK-E E "E" note: not rebasing 4:86a1f6686812 BOOK-E E "E", its destination already has all its changes saved backup bundle to $TESTTMP/merge1/.hg/strip-backup/b18e25de2cf5-1fd0a4ba-rebase.hg $ hg update null -q $ hg log -G -T '{rev} {desc} {bookmarks}' o 4 H BOOK-C BOOK-D BOOK-E | o 3 D | o 2 C | o 1 B | o 0 A Part of ancestors of a merge become empty $ hg init $TESTTMP/merge2 $ cd $TESTTMP/merge2 $ hg debugdrawdag<<'EOS' > G > /| > E F > | | > B C D > \|/ > A > EOS $ for i in C D E F G; do > hg bookmark -r $i -i BOOK-$i > done $ hg debugdrawdag<<'EOS' > H > | > F > | > C > | > B > EOS $ hg rebase -r '(A::)-(B::)-A' -d H rebasing 2:dc0947a82db8 BOOK-C "C" note: not rebasing 2:dc0947a82db8 BOOK-C "C", its destination already has all its changes rebasing 3:b18e25de2cf5 BOOK-D D "D" rebasing 4:03ca77807e91 BOOK-E E "E" rebasing 5:ad6717a6a58e BOOK-F "F" note: not rebasing 5:ad6717a6a58e BOOK-F "F", its destination already has all its changes rebasing 6:c58e8bdac1f4 BOOK-G G "G" saved backup bundle to $TESTTMP/merge2/.hg/strip-backup/b18e25de2cf5-2d487005-rebase.hg $ hg log -G -T '{rev} {desc} {bookmarks}' o 7 G BOOK-G |\ | o 6 E BOOK-E | | o | 5 D BOOK-D BOOK-F |/ o 4 H BOOK-C | o 3 F | o 2 C | o 1 B | o 0 A