Mercurial > hg
view tests/test-merge-revert2.t @ 33377:5d63e5f40bea
revset: define successors revset
This revset returns all successors, including transit nodes and the source
nodes (to be consistent with existing revsets like "ancestors").
To filter out transit nodes, use `successors(X)-obsolete()`.
To filter out divergent case, use `successors(X)-divergent()-obsolete()`.
The revset could be useful to define rebase destination, like:
`max(successors(BASE)-divergent()-obsolete())`. The `max` is to deal with
splits.
There are other implementations where `successors` returns just one level of
successors, and `allsuccessors` returns everything. I think `successors`
returning all successors by default is more user friendly. We have seen
cases in production where people use 1-level `successors` while they really
want `allsuccessors`. So it seems better to just have one single revset
returning all successors by default to avoid user errors.
In the future we might want to add `depth` keyword argument to it and for
other revsets like `ancestors` etc. Or even build some flexible indexing
syntax [1] to satisfy people having the depth limit requirement.
[1]: https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-July/101140.html
author | Jun Wu <quark@fb.com> |
---|---|
date | Mon, 10 Jul 2017 10:56:40 -0700 |
parents | ce3a133f71b3 |
children | 55c6ebd11cb9 |
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$ hg init $ echo "added file1" > file1 $ echo "another line of text" >> file1 $ echo "added file2" > file2 $ hg add file1 file2 $ hg commit -m "added file1 and file2" $ echo "changed file1" >> file1 $ hg commit -m "changed file1" $ hg -q log 1:dfab7f3c2efb 0:c3fa057dd86f $ hg id dfab7f3c2efb tip $ hg update -C 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg id c3fa057dd86f $ echo "changed file1" >> file1 $ hg id c3fa057dd86f+ $ hg revert --no-backup --all reverting file1 $ hg diff $ hg status $ hg id c3fa057dd86f $ hg update 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg diff $ hg status $ hg id dfab7f3c2efb tip $ hg update -C 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo "changed file1 different" >> file1 $ hg update merging file1 warning: conflicts while merging file1! (edit, then use 'hg resolve --mark') 0 files updated, 0 files merged, 0 files removed, 1 files unresolved use 'hg resolve' to retry unresolved file merges [1] $ hg diff --nodates diff -r dfab7f3c2efb file1 --- a/file1 +++ b/file1 @@ -1,3 +1,7 @@ added file1 another line of text +<<<<<<< working copy: c3fa057dd86f - test: added file1 and file2 +changed file1 different +======= changed file1 +>>>>>>> destination: dfab7f3c2efb - test: changed file1 $ hg status M file1 ? file1.orig $ hg id dfab7f3c2efb+ tip $ hg revert --no-backup --all reverting file1 $ hg diff $ hg status ? file1.orig $ hg id dfab7f3c2efb tip $ hg revert -r tip --no-backup --all $ hg diff $ hg status ? file1.orig $ hg id dfab7f3c2efb tip $ hg update -C 0 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg diff $ hg status ? file1.orig $ hg id dfab7f3c2efb tip