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-rwxr-xr-xgit-am.sh31
-rwxr-xr-xt/t4151-am-abort.sh81
2 files changed, 104 insertions, 8 deletions
diff --git a/git-am.sh b/git-am.sh
index a67d0f9898..3103c0fc28 100755
--- a/git-am.sh
+++ b/git-am.sh
@@ -69,6 +69,8 @@ then
cmdline="$cmdline -3"
fi
+empty_tree=4b825dc642cb6eb9a060e54bf8d69288fbee4904
+
sq () {
git rev-parse --sq-quote "$@"
}
@@ -85,7 +87,7 @@ safe_to_abort () {
return 1
fi
- if ! test -s "$dotest/abort-safety"
+ if ! test -f "$dotest/abort-safety"
then
return 0
fi
@@ -177,7 +179,8 @@ It does not apply to blobs recorded in its index.")"
then
GIT_MERGE_VERBOSITY=0 && export GIT_MERGE_VERBOSITY
fi
- git-merge-recursive $orig_tree -- HEAD $his_tree || {
+ our_tree=$(git rev-parse --verify -q HEAD || echo $empty_tree)
+ git-merge-recursive $orig_tree -- $our_tree $his_tree || {
git rerere $allow_rerere_autoupdate
die "$(gettext "Failed to merge in the changes.")"
}
@@ -502,10 +505,11 @@ then
;;
t,)
git rerere clear
- git read-tree --reset -u HEAD HEAD
- orig_head=$(cat "$GIT_DIR/ORIG_HEAD")
- git reset HEAD
- git update-ref ORIG_HEAD $orig_head
+ head_tree=$(git rev-parse --verify -q HEAD || echo $empty_tree) &&
+ git read-tree --reset -u $head_tree $head_tree &&
+ index_tree=$(git write-tree) &&
+ git read-tree -m -u $index_tree $head_tree
+ git read-tree $head_tree
;;
,t)
if test -f "$dotest/rebasing"
@@ -515,8 +519,19 @@ then
git rerere clear
if safe_to_abort
then
- git read-tree --reset -u HEAD ORIG_HEAD
- git reset ORIG_HEAD
+ head_tree=$(git rev-parse --verify -q HEAD || echo $empty_tree) &&
+ git read-tree --reset -u $head_tree $head_tree &&
+ index_tree=$(git write-tree) &&
+ orig_head=$(git rev-parse --verify -q ORIG_HEAD || echo $empty_tree) &&
+ git read-tree -m -u $index_tree $orig_head
+ if git rev-parse --verify -q ORIG_HEAD >/dev/null 2>&1
+ then
+ git reset ORIG_HEAD
+ else
+ git read-tree $empty_tree
+ curr_branch=$(git symbolic-ref HEAD 2>/dev/null) &&
+ git update-ref -d $curr_branch
+ fi
fi
rm -fr "$dotest"
exit ;;
diff --git a/t/t4151-am-abort.sh b/t/t4151-am-abort.sh
index 8d90634ab8..833e7b2cea 100755
--- a/t/t4151-am-abort.sh
+++ b/t/t4151-am-abort.sh
@@ -14,6 +14,7 @@ test_expect_success setup '
git add file-1 file-2 &&
git commit -m initial &&
git tag initial &&
+ git format-patch --stdout --root initial >initial.patch &&
for i in 2 3 4 5 6
do
echo $i >>file-1 &&
@@ -63,6 +64,28 @@ do
done
+test_expect_success 'am -3 --skip removes otherfile-4' '
+ git reset --hard initial &&
+ test_must_fail git am -3 0003-*.patch &&
+ test 3 -eq $(git ls-files -u | wc -l) &&
+ test 4 = "$(cat otherfile-4)" &&
+ git am --skip &&
+ test_cmp_rev initial HEAD &&
+ test -z "$(git ls-files -u)" &&
+ test_path_is_missing otherfile-4
+'
+
+test_expect_success 'am -3 --abort removes otherfile-4' '
+ git reset --hard initial &&
+ test_must_fail git am -3 0003-*.patch &&
+ test 3 -eq $(git ls-files -u | wc -l) &&
+ test 4 = "$(cat otherfile-4)" &&
+ git am --abort &&
+ test_cmp_rev initial HEAD &&
+ test -z $(git ls-files -u) &&
+ test_path_is_missing otherfile-4
+'
+
test_expect_success 'am --abort will keep the local commits intact' '
test_must_fail git am 0004-*.patch &&
test_commit unrelated &&
@@ -72,4 +95,62 @@ test_expect_success 'am --abort will keep the local commits intact' '
test_cmp expect actual
'
+test_expect_success 'am -3 stops on conflict on unborn branch' '
+ git checkout -f --orphan orphan &&
+ git reset &&
+ rm -f otherfile-4 &&
+ test_must_fail git am -3 0003-*.patch &&
+ test 2 -eq $(git ls-files -u | wc -l) &&
+ test 4 = "$(cat otherfile-4)"
+'
+
+test_expect_success 'am -3 --skip clears index on unborn branch' '
+ test_path_is_dir .git/rebase-apply &&
+ echo tmpfile >tmpfile &&
+ git add tmpfile &&
+ git am --skip &&
+ test -z "$(git ls-files)" &&
+ test_path_is_missing otherfile-4 &&
+ test_path_is_missing tmpfile
+'
+
+test_expect_success 'am -3 --abort removes otherfile-4 on unborn branch' '
+ git checkout -f --orphan orphan &&
+ git reset &&
+ rm -f otherfile-4 file-1 &&
+ test_must_fail git am -3 0003-*.patch &&
+ test 2 -eq $(git ls-files -u | wc -l) &&
+ test 4 = "$(cat otherfile-4)" &&
+ git am --abort &&
+ test -z "$(git ls-files -u)" &&
+ test_path_is_missing otherfile-4
+'
+
+test_expect_success 'am -3 --abort on unborn branch removes applied commits' '
+ git checkout -f --orphan orphan &&
+ git reset &&
+ rm -f otherfile-4 otherfile-2 file-1 file-2 &&
+ test_must_fail git am -3 initial.patch 0003-*.patch &&
+ test 3 -eq $(git ls-files -u | wc -l) &&
+ test 4 = "$(cat otherfile-4)" &&
+ git am --abort &&
+ test -z "$(git ls-files -u)" &&
+ test_path_is_missing otherfile-4 &&
+ test_path_is_missing file-1 &&
+ test_path_is_missing file-2 &&
+ test 0 -eq $(git log --oneline 2>/dev/null | wc -l) &&
+ test refs/heads/orphan = "$(git symbolic-ref HEAD)"
+'
+
+test_expect_success 'am --abort on unborn branch will keep local commits intact' '
+ git checkout -f --orphan orphan &&
+ git reset &&
+ test_must_fail git am 0004-*.patch &&
+ test_commit unrelated2 &&
+ git rev-parse HEAD >expect &&
+ git am --abort &&
+ git rev-parse HEAD >actual &&
+ test_cmp expect actual
+'
+
test_done