Mercurial > hg
annotate tests/test-issue1438.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> |
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date | Mon, 10 Jul 2017 10:56:40 -0700 |
parents | 2fc86d92c4a9 |
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1 #require symlink |
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3 https://bz.mercurial-scm.org/1438 |
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5 $ hg init |
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7 $ ln -s foo link |
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8 $ hg add link |
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9 $ hg ci -mbad link |
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10 $ hg rm link |
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11 $ hg ci -mok |
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12 $ hg diff -g -r 0:1 > bad.patch |
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14 $ hg up 0 |
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15 1 files updated, 0 files merged, 0 files removed, 0 files unresolved |
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17 $ hg import --no-commit bad.patch |
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18 applying bad.patch |
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20 $ hg status |
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21 R link |
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22 ? bad.patch |
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23 |