Mercurial > hg
view tests/test-rename-after-merge.t @ 45584:4c8a93ec6908
merge: store commitinfo if these is a dc or cd conflict
delete-changed or changed-delete conflicts can either be resolved by mergetool,
if some tool is passed and using or by user choose something on prompt or user
doing some `hg revert` after choosing the file to remain conflicted.
If the user decides to keep the changed side, on commit we just reuse the parent
filenode. This is mostly fine unless we are in a distributed environment and
people are doing criss-cross merges.
Since, we don't have recursive merges or any other way of describing the end
result of the merge was an explicit choice and it should be differentiated from
it's ancestors, merge algo during criss-cross merges fails to take in account
the explicit choice made by user and end up with a what-can-be-said-wrong-merge.
The solution which we are trying to fix this is by creating a filenode on commit
instead of reusing the parent filenode. This helps differentiate between
pre-merged filenode and post-merge filenode and kind of tells about the choice
user made.
To implement creating new filenode functionality, we store info about these
files in mergestate so that we can read them on commit and force create a new
filenode.
Differential Revision: https://phab.mercurial-scm.org/D8988
author | Pulkit Goyal <7895pulkit@gmail.com> |
---|---|
date | Thu, 03 Sep 2020 13:44:06 +0530 |
parents | 9dab3fa64325 |
children | 8d72e29ad1e0 |
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Issue746: renaming files brought by the second parent of a merge was broken. Create source repository: $ hg init t $ cd t $ echo a > a $ hg ci -Am a adding a $ cd .. Fork source repository: $ hg clone t t2 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd t2 $ echo b > b $ hg ci -Am b adding b Update source repository: $ cd ../t $ echo a >> a $ hg ci -m a2 Merge repositories: $ hg pull ../t2 pulling from ../t2 searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) new changesets d2ae7f538514 1 local changesets published (run 'hg heads' to see heads, 'hg merge' to merge) $ hg merge 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg st M b Rename b as c: $ hg mv b c $ hg st A c R b Rename back c as b: $ hg mv c b $ hg st M b $ cd .. Issue 1476: renaming a first parent file into another first parent file while none of them belong to the second parent was broken $ hg init repo1476 $ cd repo1476 $ echo a > a $ hg ci -Am adda adding a $ echo b1 > b1 $ echo b2 > b2 $ hg ci -Am changea adding b1 adding b2 $ hg up -C 0 0 files updated, 0 files merged, 2 files removed, 0 files unresolved $ echo c1 > c1 $ echo c2 > c2 $ hg ci -Am addcandd adding c1 adding c2 created new head Merge heads: $ hg merge 2 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg mv -Af c1 c2 Commit issue 1476: $ hg ci -m merge $ hg log -r tip -C -v | grep copies copies: c2 (c1) $ hg rollback repository tip rolled back to revision 2 (undo commit) working directory now based on revisions 2 and 1 $ hg up -C . 2 files updated, 0 files merged, 2 files removed, 0 files unresolved Merge heads again: $ hg merge 2 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg mv -Af b1 b2 Commit issue 1476 with a rename on the other side: $ hg ci -m merge $ hg log -r tip -C -v | grep copies copies: b2 (b1) Test marking/unmarking copies in merge commit $ hg copy --forget --at-rev . b2 abort: cannot mark/unmark copy in merge commit [255] $ hg copy --after --at-rev . b1 b2 abort: cannot mark/unmark copy in merge commit [255] $ cd ..