Mercurial > hg
view tests/test-copy-move-merge.t @ 42193:14589f1989e9 stable
context: check file exists before getting data from _wrappedctx
overlayworkingctx class is used to do in-memory merging. The data() function of
that class has logic to look for data() in the wrappedctx if the file data in
cache is empty and if the file is dirty. This assumes that if a file is dirty
and cache has empty data for it, it will exists in the _wrappedctx.
However this assumption can be False in case when we are merging a file which is
empty in destination. In these cases, the backup file 'foo.orig' created by our
internal merge algorithms will be empty, however it won't be present in
_wrappedctx. This case will lead us to error like the one this patch is fixing.
Let's only fallback to getting data from wrappedctx if cache has 'None' as data.
Differential Revision: https://phab.mercurial-scm.org/D6308
author | Pulkit Goyal <pulkit@yandex-team.ru> |
---|---|
date | Wed, 24 Apr 2019 19:42:43 +0300 |
parents | a3fd84f4fb38 |
children | 91a0bc50b288 |
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Test for the full copytracing algorithm ======================================= $ hg init t $ cd t $ echo 1 > a $ hg ci -qAm "first" $ hg cp a b $ hg mv a c $ echo 2 >> b $ echo 2 >> c $ hg ci -qAm "second" $ hg co -C 0 1 files updated, 0 files merged, 2 files removed, 0 files unresolved $ echo 0 > a $ echo 1 >> a $ hg ci -qAm "other" $ hg merge --debug searching for copies back to rev 1 unmatched files in other: b c all copies found (* = to merge, ! = divergent, % = renamed and deleted): src: 'a' -> dst: 'b' * src: 'a' -> dst: 'c' * checking for directory renames resolving manifests branchmerge: True, force: False, partial: False ancestor: b8bf91eeebbc, local: add3f11052fa+, remote: 17c05bb7fcb6 preserving a for resolve of b preserving a for resolve of c removing a starting 4 threads for background file closing (?) b: remote moved from a -> m (premerge) picked tool ':merge' for b (binary False symlink False changedelete False) merging a and b to b my b@add3f11052fa+ other b@17c05bb7fcb6 ancestor a@b8bf91eeebbc premerge successful c: remote moved from a -> m (premerge) picked tool ':merge' for c (binary False symlink False changedelete False) merging a and c to c my c@add3f11052fa+ other c@17c05bb7fcb6 ancestor a@b8bf91eeebbc premerge successful 0 files updated, 2 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) file b $ cat b 0 1 2 file c $ cat c 0 1 2 Test disabling copy tracing - first verify copy metadata was kept $ hg up -qC 2 $ hg rebase --keep -d 1 -b 2 --config extensions.rebase= rebasing 2:add3f11052fa "other" (tip) merging b and a to b merging c and a to c $ cat b 0 1 2 - next verify copy metadata is lost when disabled $ hg strip -r . --config extensions.strip= 2 files updated, 0 files merged, 0 files removed, 0 files unresolved saved backup bundle to $TESTTMP/t/.hg/strip-backup/550bd84c0cd3-fc575957-backup.hg $ hg up -qC 2 $ hg rebase --keep -d 1 -b 2 --config extensions.rebase= --config experimental.copytrace=off --config ui.interactive=True << EOF > c > EOF rebasing 2:add3f11052fa "other" (tip) file 'a' was deleted in local [dest] but was modified in other [source]. What do you want to do? use (c)hanged version, leave (d)eleted, or leave (u)nresolved? c $ cat b 1 2 $ cd .. Verify disabling copy tracing still keeps copies from rebase source $ hg init copydisable $ cd copydisable $ touch a $ hg ci -Aqm 'add a' $ touch b $ hg ci -Aqm 'add b, c' $ hg cp b x $ echo x >> x $ hg ci -qm 'copy b->x' $ hg up -q 1 $ touch z $ hg ci -Aqm 'add z' $ hg log -G -T '{rev} {desc}\n' @ 3 add z | | o 2 copy b->x |/ o 1 add b, c | o 0 add a $ hg rebase -d . -b 2 --config extensions.rebase= --config experimental.copytrace=off rebasing 2:6adcf8c12e7d "copy b->x" saved backup bundle to $TESTTMP/copydisable/.hg/strip-backup/6adcf8c12e7d-ce4b3e75-rebase.hg $ hg up -q 3 $ hg log -f x -T '{rev} {desc}\n' 3 copy b->x 1 add b, c $ cd ../ Verify we duplicate existing copies, instead of detecting them $ hg init copydisable3 $ cd copydisable3 $ touch a $ hg ci -Aqm 'add a' $ hg cp a b $ hg ci -Aqm 'copy a->b' $ hg mv b c $ hg ci -Aqm 'move b->c' $ hg up -q 0 $ hg cp a b $ echo b >> b $ hg ci -Aqm 'copy a->b (2)' $ hg log -G -T '{rev} {desc}\n' @ 3 copy a->b (2) | | o 2 move b->c | | | o 1 copy a->b |/ o 0 add a $ hg rebase -d 2 -s 3 --config extensions.rebase= --config experimental.copytrace=off rebasing 3:47e1a9e6273b "copy a->b (2)" (tip) saved backup bundle to $TESTTMP/copydisable3/.hg/strip-backup/47e1a9e6273b-2d099c59-rebase.hg $ hg log -G -f b @ changeset: 3:76024fb4b05b : tag: tip : user: test : date: Thu Jan 01 00:00:00 1970 +0000 : summary: copy a->b (2) : o changeset: 0:ac82d8b1f7c4 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: add a