Mercurial > hg
view tests/test-parents.t @ 42050:03f6480bfdda
unshelve: disable unshelve during merge (issue5123)
As stated in the issue5123, unshelve can destroy the second parent of
the context when tried to unshelve with an uncommitted merge. This
patch makes unshelve to abort when called with an uncommitted merge.
See how shelve.mergefiles works. Commit structure looks like this:
```
... -> pctx -> tmpwctx -> shelvectx
/
/
second
merge parent
pctx = parent before merging working context(first merge parent)
tmpwctx = commited working directory after merge(with two parents)
shelvectx = shelved context
```
shelve.mergefiles first updates to pctx then it reverts shelvectx to pctx with:
```
cmdutil.revert(ui, repo, shelvectx, repo.dirstate.parents(),
*pathtofiles(repo, files),
**{'no_backup': True})
```
Reverting tmpwctx files that were merged from second parent to pctx makes them
added because they are not in pctx.
Changing this revert operation is crucial to restore parents after unshelve.
This is a complicated issue as this is not fixing a regression. Thus, for the
time being, unshelve during an uncommitted merge can be aborted.
(Details taken from http://mercurial.808500.n3.nabble.com/PATCH-V3-shelve-restore-parents-after-unshelve-issue5123-tt4036858.html#a4037408)
Differential Revision: https://phab.mercurial-scm.org/D6169
author | Navaneeth Suresh <navaneeths1998@gmail.com> |
---|---|
date | Mon, 25 Mar 2019 12:33:41 +0530 |
parents | 4441705b7111 |
children | 8d72e29ad1e0 |
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test parents command $ hg init repo $ cd repo no working directory $ hg parents $ echo a > a $ echo b > b $ hg ci -Amab -d '0 0' adding a adding b $ echo a >> a $ hg ci -Ama -d '1 0' $ echo b >> b $ hg ci -Amb -d '2 0' $ echo c > c $ hg ci -Amc -d '3 0' adding c $ hg up -C 1 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo d > c $ hg ci -Amc2 -d '4 0' adding c created new head $ hg up -C 3 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg parents changeset: 3:02d851b7e549 user: test date: Thu Jan 01 00:00:03 1970 +0000 summary: c $ hg parents a changeset: 1:d786049f033a user: test date: Thu Jan 01 00:00:01 1970 +0000 summary: a hg parents c, single revision $ hg parents c changeset: 3:02d851b7e549 user: test date: Thu Jan 01 00:00:03 1970 +0000 summary: c $ hg parents -r 3 c abort: 'c' not found in manifest! [255] $ hg parents -r 2 changeset: 1:d786049f033a user: test date: Thu Jan 01 00:00:01 1970 +0000 summary: a $ hg parents -r 2 a changeset: 1:d786049f033a user: test date: Thu Jan 01 00:00:01 1970 +0000 summary: a $ hg parents -r 2 ../a abort: ../a not under root '$TESTTMP/repo' [255] cd dir; hg parents -r 2 ../a $ mkdir dir $ cd dir $ hg parents -r 2 ../a changeset: 1:d786049f033a user: test date: Thu Jan 01 00:00:01 1970 +0000 summary: a $ hg parents -r 2 path:a changeset: 1:d786049f033a user: test date: Thu Jan 01 00:00:01 1970 +0000 summary: a $ cd .. $ hg parents -r 2 glob:a abort: can only specify an explicit filename [255] merge working dir with 2 parents, hg parents c $ HGMERGE=true hg merge merging c 0 files updated, 1 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg parents c changeset: 3:02d851b7e549 user: test date: Thu Jan 01 00:00:03 1970 +0000 summary: c changeset: 4:48cee28d4b4e tag: tip parent: 1:d786049f033a user: test date: Thu Jan 01 00:00:04 1970 +0000 summary: c2 merge working dir with 1 parent, hg parents $ hg up -C 2 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ HGMERGE=true hg merge -r 4 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg parents changeset: 2:6cfac479f009 user: test date: Thu Jan 01 00:00:02 1970 +0000 summary: b changeset: 4:48cee28d4b4e tag: tip parent: 1:d786049f033a user: test date: Thu Jan 01 00:00:04 1970 +0000 summary: c2 merge working dir with 1 parent, hg parents c $ hg parents c changeset: 4:48cee28d4b4e tag: tip parent: 1:d786049f033a user: test date: Thu Jan 01 00:00:04 1970 +0000 summary: c2 $ cd ..