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author | Brad King <brad.king@kitware.com> | 2014-01-27 18:45:06 +0400 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2014-02-25 02:30:22 +0400 |
commit | 29d9af586ba3ee1e6df1dc070f42ea659ad77cc2 (patch) | |
tree | 05d646a3d826e5c59df1e8086e4af396a2d935f3 /t | |
parent | 2f93541d88fadd1ff5307d81c2c8921ee3eea058 (diff) |
t3030-merge-recursive: test known breakage with empty work tree
Sometimes when working with a large repository it can be useful to try
out a merge and only check out conflicting files to disk (for example as
a speed optimization on a server). Until v1.7.7-rc1~28^2~20
(merge-recursive: When we detect we can skip an update, actually skip
it, 2011-08-11), it was possible to do so with the following idiom:
# Prepare a temporary index and empty work tree.
GIT_INDEX_FILE="$PWD/tmp-$$-index" &&
export GIT_INDEX_FILE &&
GIT_WORK_TREE="$PWD/tmp-$$-work" &&
export GIT_WORK_TREE &&
mkdir "$GIT_WORK_TREE" &&
# Convince the index that our side is on disk.
git read-tree -i -m $ours &&
git update-index --ignore-missing --refresh &&
# Merge their side into our side.
bases=$(git merge-base --all $ours $theirs) &&
git merge-recursive $bases -- $ours $theirs &&
tree=$(git write-tree)
Nowadays, that still works and the exit status is the same, but
merge-recursive produces a diagnostic if "our" side renamed a file:
error: addinfo_cache failed for path 'dst'
Add a test to document this regression.
Signed-off-by: Brad King <brad.king@kitware.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't')
-rwxr-xr-x | t/t3030-merge-recursive.sh | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/t/t3030-merge-recursive.sh b/t/t3030-merge-recursive.sh index 2f96100a5f..3db3bf6651 100755 --- a/t/t3030-merge-recursive.sh +++ b/t/t3030-merge-recursive.sh @@ -257,6 +257,7 @@ test_expect_success 'setup 8' ' git add e && test_tick && git commit -m "rename a->e" && + c7=$(git rev-parse --verify HEAD) && git checkout rename-ln && git mv a e && test_ln_s_add e a && @@ -517,6 +518,52 @@ test_expect_success 'reset and bind merge' ' ' +test_expect_failure 'merge-recursive w/ empty work tree - ours has rename' ' + ( + GIT_WORK_TREE="$PWD/ours-has-rename-work" && + export GIT_WORK_TREE && + GIT_INDEX_FILE="$PWD/ours-has-rename-index" && + export GIT_INDEX_FILE && + mkdir "$GIT_WORK_TREE" && + git read-tree -i -m $c7 && + git update-index --ignore-missing --refresh && + git merge-recursive $c0 -- $c7 $c3 && + git ls-files -s >actual-files + ) 2>actual-err && + >expected-err && + cat >expected-files <<-EOF && + 100644 $o3 0 b/c + 100644 $o0 0 c + 100644 $o0 0 d/e + 100644 $o0 0 e + EOF + test_cmp expected-files actual-files && + test_cmp expected-err actual-err +' + +test_expect_success 'merge-recursive w/ empty work tree - theirs has rename' ' + ( + GIT_WORK_TREE="$PWD/theirs-has-rename-work" && + export GIT_WORK_TREE && + GIT_INDEX_FILE="$PWD/theirs-has-rename-index" && + export GIT_INDEX_FILE && + mkdir "$GIT_WORK_TREE" && + git read-tree -i -m $c3 && + git update-index --ignore-missing --refresh && + git merge-recursive $c0 -- $c3 $c7 && + git ls-files -s >actual-files + ) 2>actual-err && + >expected-err && + cat >expected-files <<-EOF && + 100644 $o3 0 b/c + 100644 $o0 0 c + 100644 $o0 0 d/e + 100644 $o0 0 e + EOF + test_cmp expected-files actual-files && + test_cmp expected-err actual-err +' + test_expect_success 'merge removes empty directories' ' git reset --hard master && |