Mercurial > hg
view tests/test-empty.t @ 20613:10433163bf57
revset: add 'only' revset
Adds a only() revset that has two forms:
only(<set>) is equivalent to "::<set> - ::(heads() - heads(<set>::))"
only(<include>,<exclude>) is equivalent to "::<include> - ::<exclude>"
On a large repo, this implementation can process/traverse 50,000 revs in 0.7
seconds, versus 4.2 seconds using "::<include> - ::<exclude>".
This is useful for performing histedits on your branch:
hg histedit -r 'first(only(.))'
Or lifting branch foo off of branch bar:
hg rebase -d @ -s 'only(foo, bar)'
Or a variety of other uses.
author | Durham Goode <durham@fb.com> |
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date | Sat, 16 Nov 2013 08:57:08 -0800 |
parents | ab2362e1672e |
children | f1186c292d03 |
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Create an empty repo: $ hg init a $ cd a Try some commands: $ hg log $ hg grep wah [1] $ hg manifest $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files 0 files, 0 changesets, 0 total revisions Check the basic files created: $ ls .hg 00changelog.i requires store Should be empty: $ ls .hg/store Poke at a clone: $ cd .. $ hg clone a b updating to branch default 0 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd b $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files 0 files, 0 changesets, 0 total revisions $ ls .hg 00changelog.i hgrc requires store Should be empty: $ ls .hg/store $ cd ..