Mercurial > hg
view tests/test-push-checkheads-unpushed-D5.t @ 41188:006c9ce486fa
rust-cpython: bindings for MissingAncestors
The exposition is rather straightforward, except for the
remove_ancestors_from() method, which forces us to an inefficient
conversion between Python sets and Rust HashSets.
Two alternatives are proposed in comments:
- changing the inner API to "emit" the revision numbers to discard
this would be a substantial change, and it would be better only in the
cases where there are more to retain than to discard
- mutating the Python set directly: this would force us to define an abstract
`RevisionSet` trait, and implement it both for plain `HashSet` and for
a struct enclosing a Python set with the GIL marker `Python<'p>`, also a non
trivial effort.
The main (and seemingly only) caller of this method being
`mercurial.setdiscovery`, which is currently undergoing serious refactoring,
it's not clear whether these improvements would be worth the effort right now,
so we're leaving it as-is.
Also, in `get_bases()` (will also be used by `setdiscovery`), we'd prefer
to build a Python set directly, but we resort to returning a tuple, waiting
to hear back from our PR onto rust-cpython about that
Differential Revision: https://phab.mercurial-scm.org/D5550
author | Georges Racinet <georges.racinet@octobus.net> |
---|---|
date | Fri, 30 Nov 2018 20:05:34 +0100 |
parents | 89630d0b3e23 |
children | 34a46d48d24e |
line wrap: on
line source
==================================== Testing head checking code: Case D-5 ==================================== Mercurial checks for the introduction of new heads on push. Evolution comes into play to detect if existing branches on the server are being replaced by some of the new one we push. This case is part of a series of tests checking this behavior. Category D: remote head is "obs-affected" locally, but result is not part of the push TestCase 5: multi-changeset branch, split on multiple other, (head on its own new branch) .. old-state: .. .. * 2 branch (1 changeset, and 2 changesets) .. .. new-state: .. .. * 1 new branch superceeding the head of the old-2-changesets-branch, .. * 1 new changesets on the old-1-changeset-branch superceeding the base of the other .. .. expected-result: .. .. * push the new branch only -> push denied .. * push the existing branch only -> push allowed .. /!\ This push create unstability/orphaning on the other hand and we should .. probably detect/warn agains that. .. .. graph-summary: .. .. B ø⇠◔ B' .. | | .. A'◔⇢ø | .. | |/ .. C ● | .. \| .. ● $ . $TESTDIR/testlib/push-checkheads-util.sh Test setup ---------- $ mkdir D5 $ cd D5 $ setuprepos creating basic server and client repo updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd server $ mkcommit B0 $ hg up 0 0 files updated, 0 files merged, 2 files removed, 0 files unresolved $ mkcommit C0 created new head $ cd ../client $ hg pull pulling from $TESTTMP/D5/server searching for changes adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 2 files (+1 heads) new changesets d73caddc5533:0f88766e02d6 (2 drafts) (run 'hg heads' to see heads, 'hg merge' to merge) $ hg up 'desc(C0)' 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ mkcommit A1 $ hg up 0 0 files updated, 0 files merged, 2 files removed, 0 files unresolved $ mkcommit B1 created new head $ hg debugobsolete `getid "desc(A0)" ` `getid "desc(A1)"` obsoleted 1 changesets 1 new orphan changesets $ hg debugobsolete `getid "desc(B0)" ` `getid "desc(B1)"` obsoleted 1 changesets $ hg log -G --hidden @ 25c56d33e4c4 (draft): B1 | | o a0802eb7fc1b (draft): A1 | | | o 0f88766e02d6 (draft): C0 |/ | x d73caddc5533 (draft): B0 | | | x 8aaa48160adc (draft): A0 |/ o 1e4be0697311 (public): root Actual testing -------------- $ hg push --rev 'desc(B1)' pushing to $TESTTMP/D5/server searching for changes abort: push creates new remote head 25c56d33e4c4! (merge or see 'hg help push' for details about pushing new heads) [255] $ hg push --rev 'desc(A1)' pushing to $TESTTMP/D5/server searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files 1 new obsolescence markers obsoleted 1 changesets 1 new orphan changesets $ cd ../..