#!/bin/sh
#
# Copyright (c) 2007 Lars Hjemli
#
test_description='git merge
Testing basic merge operations/option parsing.
! [c0] commit 0
! [c1] commit 1
! [c2] commit 2
! [c3] commit 3
! [c4] c4
! [c5] c5
! [c6] c6
* [main] Merge commit 'c1'
--------
- [main] Merge commit 'c1'
+ * [c1] commit 1
+ [c6] c6
+ [c5] c5
++ [c4] c4
++++ [c3] commit 3
+ [c2] commit 2
+++++++* [c0] commit 0
'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-gpg.sh
test_write_lines 1 2 3 4 5 6 7 8 9 >file
cp file file.orig
test_write_lines '1 X' 2 3 4 5 6 7 8 9 >file.1
test_write_lines 1 2 '3 X' 4 5 6 7 8 9 >file.3
test_write_lines 1 2 3 4 '5 X' 6 7 8 9 >file.5
test_write_lines 1 2 3 4 5 6 7 8 '9 X' >file.9
test_write_lines 1 2 3 4 5 6 7 8 '9 Y' >file.9y
test_write_lines '1 X' 2 3 4 5 6 7 8 9 >result.1
test_write_lines '1 X' 2 3 4 '5 X' 6 7 8 9 >result.1-5
test_write_lines '1 X' 2 3 4 5 6 7 8 '9 X' >result.1-9
test_write_lines '1 X' 2 3 4 '5 X' 6 7 8 '9 X' >result.1-5-9
test_write_lines '1 X' 2 '3 X' 4 '5 X' 6 7 8 '9 X' >result.1-3-5-9
test_write_lines 1 2 3 4 5 6 7 8 '9 Z' >result.9z
create_merge_msgs () {
echo "Merge tag 'c2'" >msg.1-5 &&
echo "Merge tags 'c2' and 'c3'" >msg.1-5-9 &&
{
echo "Squashed commit of the following:" &&
echo &&
git log --no-merges ^HEAD c1
} >squash.1 &&
{
echo "Squashed commit of the following:" &&
echo &&
git log --no-merges ^HEAD c2
} >squash.1-5 &&
{
echo "Squashed commit of the following:" &&
echo &&
git log --no-merges ^HEAD c2 c3
} >squash.1-5-9 &&
{
echo "* tag 'c3':" &&
echo " commit 3"
} >msg.log
}
verify_merge () {
test_cmp "$2" "$1" &&
git update-index --refresh &&
git diff --exit-code &&
if test -n "$3"
then
git show -s --pretty=tformat:%s HEAD >msg.act &&
test_cmp "$3" msg.act
fi
}
verify_head () {
echo "$1" >head.expected &&
git rev-parse HEAD >head.actual &&
test_cmp head.expected head.actual
}
verify_parents () {
test_write_lines "$@" >parents.expected &&
>parents.actual &&
i=1 &&
while test $i -le $#
do
git rev-parse HEAD^$i >>parents.actual &&
i=$(expr $i + 1) ||
return 1
done &&
test_must_fail git rev-parse --verify "HEAD^$i" &&
test_cmp parents.expected parents.actual
}
verify_mergeheads () {
test_write_lines "$@" >mergehead.expected &&
while read sha1 rest
do
git rev-parse $sha1 || return 1
done <.git/MERGE_HEAD >mergehead.actual &&
test_cmp mergehead.expected mergehead.actual
}
verify_no_mergehead () {
! test -e .git/MERGE_HEAD
}
test_expect_success 'setup' '
git add file &&
test_tick &&
git commit -m "commit 0" &&
git tag c0 &&
c0=$(git rev-parse HEAD) &&
cp file.1 file &&
git add file &&
cp file.1 other &&
git add other &&
test_tick &&
git commit -m "commit 1" &&
git tag c1 &&
c1=$(git rev-parse HEAD) &&
git reset --hard "$c0" &&
cp file.5 file &&
git add file &&
test_tick &&
git commit -m "commit 2" &&
git tag c2 &&
c2=$(git rev-parse HEAD) &&
git reset --hard "$c0" &&
cp file.9y file &&
git add file &&
test_tick &&
git commit -m "commit 7" &&
git tag c7 &&
git reset --hard "$c0" &&
cp file.9 file &&
git add file &&
test_tick &&
git commit -m "commit 3" &&
git tag c3 &&
c3=$(git rev-parse HEAD) &&
git reset --hard "$c0" &&
create_merge_msgs
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'test option parsing' '
test_must_fail git merge -$ c1 &&
test_must_fail git merge --no-such c1 &&
test_must_fail git merge -s foobar c1 &&
test_must_fail git merge -s=foobar c1 &&
test_must_fail git merge -m &&
test_must_fail git merge --abort foobar &&
test_must_fail git merge --abort --quiet &&
test_must_fail git merge --continue foobar &&
test_must_fail git merge --continue --quiet &&
test_must_fail git merge
'
test_expect_success 'merge -h with invalid index' '
mkdir broken &&
(
cd broken &&
git init &&
>.git/index &&
test_expect_code 129 git merge -h 2>usage
) &&
test_grep "[Uu]sage: git merge" broken/usage
'
test_expect_success 'reject non-strategy with a git-merge-foo name' '
test_must_fail git merge -s index c1
'
test_expect_success 'merge c0 with c1' '
echo "OBJID HEAD@{0}: merge c1: Fast-forward" >reflog.expected &&
git reset --hard c0 &&
git merge c1 &&
verify_merge file result.1 &&
verify_head "$c1" &&
git reflog -1 >reflog.actual &&
sed "s/$_x05[0-9a-f]*/OBJID/g" reflog.actual >reflog.fuzzy &&
test_cmp reflog.expected reflog.fuzzy
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c0 with c1 with --ff-only' '
git reset --hard c0 &&
git merge --ff-only c1 &&
git merge --ff-only HEAD c0 c1 &&
verify_merge file result.1 &&
verify_head "$c1"
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge from unborn branch' '
git checkout -f main &&
test_might_fail git branch -D kid &&
echo "OBJID HEAD@{0}: initial pull" >reflog.expected &&
git checkout --orphan kid &&
test_when_finished "git checkout -f main" &&
git rm -fr . &&
test_tick &&
git merge --ff-only c1 &&
verify_merge file result.1 &&
verify_head "$c1" &&
git reflog -1 >reflog.actual &&
sed "s/$_x05[0-9a-f][0-9a-f]/OBJID/g" reflog.actual >reflog.fuzzy &&
test_cmp reflog.expected reflog.fuzzy
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2' '
git reset --hard c1 &&
test_tick &&
git merge c2 &&
verify_merge file result.1-5 msg.1-5 &&
verify_parents $c1 $c2
'
test_expect_success 'merge c1 with c2 when index.lock exists' '
test_when_finished rm .git/index.lock &&
git reset --hard c1 &&
>.git/index.lock &&
test_must_fail git merge c2 &&
test_path_is_missing .git/MERGE_HEAD &&
test_path_is_missing .git/MERGE_MODE &&
test_path_is_missing .git/MERGE_MSG
'
test_expect_success 'merge --squash c3 with c7' '
git reset --hard c3 &&
test_must_fail git merge --squash c7 &&
cat result.9z >file &&
git commit --no-edit -a &&
cat >expect <<-EOF &&
Squashed commit of the following:
$(git show -s c7)
# Conflicts:
# file
EOF
git cat-file commit HEAD >raw &&
sed -e "1,/^$/d" raw >actual &&
test_cmp expect actual
'
test_expect_success 'merge --squash --autostash conflict does not attempt to apply autostash' '
git reset --hard c3 &&
>unrelated &&
git add unrelated &&
test_must_fail git merge --squash c7 --autostash >out 2>err &&
! grep "Applying autostash resulted in conflicts." err &&
grep "When finished, apply stashed changes with \`git stash pop\`" out
'
test_expect_success 'merge c3 with c7 with commit.cleanup = scissors' '
git config commit.cleanup scissors &&
git reset --hard c3 &&
test_must_fail git merge c7 &&
cat result.9z >file &&
git commit --no-edit -a &&
cat >expect <<-\EOF &&
Merge tag '"'"'c7'"'"'
# ------------------------ >8 ------------------------
# Do not modify or remove the line above.
# Everything below it will be ignored.
#
# Conflicts:
# file
EOF
git cat-file commit HEAD >raw &&
sed -e "1,/^$/d" raw >actual &&
test_cmp expect actual
'
test_expect_success 'merge c3 with c7 with --squash commit.cleanup = scissors' '
git config commit.cleanup scissors &&
git reset --hard c3 &&
test_must_fail git merge --squash c7 &&
cat result.9z >file &&
git commit --no-edit -a &&
cat >expect <<-EOF &&
Squashed commit of the following:
$(git show -s c7)
# ------------------------ >8 ------------------------
# Do not modify or remove the line above.
# Everything below it will be ignored.
#
# Conflicts:
# file
EOF
git cat-file commit HEAD >raw &&
sed -e "1,/^$/d" raw >actual &&
test_cmp expect actual
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 and c3' '
git reset --hard c1 &&
test_tick &&
git merge c2 c3 &&
verify_merge file result.1-5-9 msg.1-5-9 &&
verify_parents $c1 $c2 $c3
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merges with --ff-only' '
git reset --hard c1 &&
test_tick &&
test_must_fail git merge --ff-only c2 &&
test_must_fail git merge --ff-only c3 &&
test_must_fail git merge --ff-only c2 c3 &&
git reset --hard c0 &&
git merge c3 &&
verify_head $c3
'
test_expect_success 'merges with merge.ff=only' '
git reset --hard c1 &&
test_tick &&
test_config merge.ff "only" &&
test_must_fail git merge c2 &&
test_must_fail git merge c3 &&
test_must_fail git merge c2 c3 &&
git reset --hard c0 &&
git merge c3 &&
verify_head $c3
'
test_expect_success 'merge c0 with c1 (no-commit)' '
git reset --hard c0 &&
git merge --no-commit c1 &&
verify_merge file result.1 &&
verify_head $c1
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 (no-commit)' '
git reset --hard c1 &&
git merge --no-commit c2 &&
verify_merge file result.1-5 &&
verify_head $c1 &&
verify_mergeheads $c2
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 and c3 (no-commit)' '
git reset --hard c1 &&
git merge --no-commit c2 c3 &&
verify_merge file result.1-5-9 &&
verify_head $c1 &&
verify_mergeheads $c2 $c3
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c0 with c1 (squash)' '
git reset --hard c0 &&
git merge --squash c1 &&
verify_merge file result.1 &&
verify_head $c0 &&
verify_no_mergehead &&
test_cmp squash.1 .git/SQUASH_MSG
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c0 with c1 (squash, ff-only)' '
git reset --hard c0 &&
git merge --squash --ff-only c1 &&
verify_merge file result.1 &&
verify_head $c0 &&
verify_no_mergehead &&
test_cmp squash.1 .git/SQUASH_MSG
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 (squash)' '
git reset --hard c1 &&
git merge --squash c2 &&
verify_merge file result.1-5 &&
verify_head $c1 &&
verify_no_mergehead &&
test_cmp squash.1-5 .git/SQUASH_MSG
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'unsuccessful merge of c1 with c2 (squash, ff-only)' '
git reset --hard c1 &&
test_must_fail git merge --squash --ff-only c2
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 and c3 (squash)' '
git reset --hard c1 &&
git merge --squash c2 c3 &&
verify_merge file result.1-5-9 &&
verify_head $c1 &&
verify_no_mergehead &&
test_cmp squash.1-5-9 .git/SQUASH_MSG
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 (no-commit in config)' '
git reset --hard c1 &&
test_config branch.main.mergeoptions "--no-commit" &&
git merge c2 &&
verify_merge file result.1-5 &&
verify_head $c1 &&
verify_mergeheads $c2
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 (log in config)' '
git reset --hard c1 &&
git merge --log c2 &&
git show -s --pretty=tformat:%s%n%b >expect &&
test_config branch.main.mergeoptions "--log" &&
git reset --hard c1 &&
git merge c2 &&
git show -s --pretty=tformat:%s%n%b >actual &&
test_cmp expect actual
'
test_expect_success 'merge c1 with c2 (log in config gets overridden)' '
git reset --hard c1 &&
git merge c2 &&
git show -s --pretty=tformat:%s%n%b >expect &&
test_config branch.main.mergeoptions "--no-log" &&
test_config merge.log "true" &&
git reset --hard c1 &&
git merge c2 &&
git show -s --pretty=tformat:%s%n%b >actual &&
test_cmp expect actual
'
test_expect_success 'merge c1 with c2 (squash in config)' '
git reset --hard c1 &&
test_config branch.main.mergeoptions "--squash" &&
git merge c2 &&
verify_merge file result.1-5 &&
verify_head $c1 &&
verify_no_mergehead &&
test_cmp squash.1-5 .git/SQUASH_MSG
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'override config option -n with --summary' '
git reset --hard c1 &&
test_config branch.main.mergeoptions "-n" &&
test_tick &&
git merge --summary c2 >diffstat.txt &&
verify_merge file result.1-5 msg.1-5 &&
verify_parents $c1 $c2 &&
if ! grep "^ file | *2 +-$" diffstat.txt
then
echo "[OOPS] diffstat was not generated with --summary"
false
fi
'
test_expect_success 'override config option -n with --stat' '
git reset --hard c1 &&
test_config branch.main.mergeoptions "-n" &&
test_tick &&
git merge --stat c2 >diffstat.txt &&
verify_merge file result.1-5 msg.1-5 &&
verify_parents $c1 $c2 &&
if ! grep "^ file | *2 +-$" diffstat.txt
then
echo "[OOPS] diffstat was not generated with --stat"
false
fi
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'override config option --stat' '
git reset --hard c1 &&
test_config branch.main.mergeoptions "--stat" &&
test_tick &&
git merge -n c2 >diffstat.txt &&
verify_merge file result.1-5 msg.1-5 &&
verify_parents $c1 $c2 &&
if grep "^ file | *2 +-$" diffstat.txt
then
echo "[OOPS] diffstat was generated"
false
fi
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 (override --no-commit)' '
git reset --hard c1 &&
test_config branch.main.mergeoptions "--no-commit" &&
test_tick &&
git merge --commit c2 &&
verify_merge file result.1-5 msg.1-5 &&
verify_parents $c1 $c2
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 (override --squash)' '
git reset --hard c1 &&
test_config branch.main.mergeoptions "--squash" &&
test_tick &&
git merge --no-squash c2 &&
verify_merge file result.1-5 msg.1-5 &&
verify_parents $c1 $c2
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c0 with c1 (no-ff)' '
git reset --hard c0 &&
test_tick &&
git merge --no-ff c1 &&
verify_merge file result.1 &&
verify_parents $c0 $c1
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c0 with c1 (merge.ff=false)' '
git reset --hard c0 &&
test_config merge.ff "false" &&
test_tick &&
git merge c1 &&
verify_merge file result.1 &&
verify_parents $c0 $c1
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'combine branch.main.mergeoptions with merge.ff' '
git reset --hard c0 &&
test_config branch.main.mergeoptions "--ff" &&
test_config merge.ff "false" &&
test_tick &&
git merge c1 &&
verify_merge file result.1 &&
verify_parents "$c0"
'
test_expect_success 'tolerate unknown values for merge.ff' '
git reset --hard c0 &&
test_config merge.ff "something-new" &&
test_tick &&
git merge c1 2>message &&
verify_head "$c1" &&
test_must_be_empty message
'
test_expect_success 'combining --squash and --no-ff is refused' '
git reset --hard c0 &&
test_must_fail git merge --squash --no-ff c1 &&
test_must_fail git merge --no-ff --squash c1
'
test_expect_success 'combining --squash and --commit is refused' '
git reset --hard c0 &&
test_must_fail git merge --squash --commit c1 &&
test_must_fail git merge --commit --squash c1
'
test_expect_success 'option --ff-only overwrites --no-ff' '
git merge --no-ff --ff-only c1 &&
test_must_fail git merge --no-ff --ff-only c2
'
test_expect_success 'option --no-ff overrides merge.ff=only config' '
git reset --hard c0 &&
test_config merge.ff only &&
git merge --no-ff c1
'
test_expect_success 'merge c0 with c1 (ff overrides no-ff)' '
git reset --hard c0 &&
test_config branch.main.mergeoptions "--no-ff" &&
git merge --ff c1 &&
verify_merge file result.1 &&
verify_head $c1
'
test_expect_success 'merge log message' '
git reset --hard c0 &&
git merge --no-log c2 &&
git show -s --pretty=format:%b HEAD >msg.act &&
test_must_be_empty msg.act &&
git reset --hard c0 &&
test_config branch.main.mergeoptions "--no-ff" &&
git merge --no-log c2 &&
git show -s --pretty=format:%b HEAD >msg.act &&
test_must_be_empty msg.act &&
git merge --log c3 &&
git show -s --pretty=format:%b HEAD >msg.act &&
test_cmp msg.log msg.act &&
git reset --hard HEAD^ &&
test_config merge.log "yes" &&
git merge c3 &&
git show -s --pretty=format:%b HEAD >msg.act &&
test_cmp msg.log msg.act
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c0, c2, c0, and c1' '
git reset --hard c1 &&
test_tick &&
git merge c0 c2 c0 c1 &&
verify_merge file result.1-5 &&
verify_parents $c1 $c2
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c0, c2, c0, and c1' '
git reset --hard c1 &&
test_tick &&
git merge c0 c2 c0 c1 &&
verify_merge file result.1-5 &&
verify_parents $c1 $c2
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c1 and c2' '
git reset --hard c1 &&
test_tick &&
git merge c1 c2 &&
verify_merge file result.1-5 &&
verify_parents $c1 $c2
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge fast-forward in a dirty tree' '
git reset --hard c0 &&
mv file file1 &&
cat file1 >file &&
rm -f file1 &&
git merge c2
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'in-index merge' '
git reset --hard c0 &&
git merge --no-ff -s resolve c1 >out &&
test_grep "Wonderful." out &&
verify_parents $c0 $c1
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'refresh the index before merging' '
git reset --hard c1 &&
cp file file.n && mv -f file.n file &&
git merge c3
'
test_expect_success 'merge with --autostash' '
git reset --hard c1 &&
git merge-file file file.orig file.9 &&
git merge --autostash c2 2>err &&
test_grep "Applied autostash." err &&
git show HEAD:file >merge-result &&
test_cmp result.1-5 merge-result &&
test_cmp result.1-5-9 file
'
test_expect_success 'merge with merge.autoStash' '
test_config merge.autoStash true &&
git reset --hard c1 &&
git merge-file file file.orig file.9 &&
git merge c2 2>err &&
test_grep "Applied autostash." err &&
git show HEAD:file >merge-result &&
test_cmp result.1-5 merge-result &&
test_cmp result.1-5-9 file
'
test_expect_success 'fast-forward merge with --autostash' '
git reset --hard c0 &&
git merge-file file file.orig file.5 &&
git merge --autostash c1 2>err &&
test_grep "Applied autostash." err &&
test_cmp result.1-5 file
'
test_expect_success 'failed fast-forward merge with --autostash' '
git reset --hard c0 &&
git merge-file file file.orig file.5 &&
cp file.5 other &&
test_when_finished "rm other" &&
test_must_fail git merge --autostash c1 2>err &&
test_grep "Applied autostash." err &&
test_cmp file.5 file
'
test_expect_success 'octopus merge with --autostash' '
git reset --hard c1 &&
git merge-file file file.orig file.3 &&
git merge --autostash c2 c3 2>err &&
test_grep "Applied autostash." err &&
git show HEAD:file >merge-result &&
test_cmp result.1-5-9 merge-result &&
test_cmp result.1-3-5-9 file
'
test_expect_success 'failed merge (exit 2) with --autostash' '
git reset --hard c1 &&
git merge-file file file.orig file.5 &&
test_must_fail git merge -s recursive --autostash c2 c3 2>err &&
test_grep "Applied autostash." err &&
test_cmp result.1-5 file
'
test_expect_success 'conflicted merge with --autostash, --abort restores stash' '
git reset --hard c3 &&
cp file.1 file &&
test_must_fail git merge --autostash c7 &&
git merge --abort 2>err &&
test_grep "Applied autostash." err &&
test_cmp file.1 file
'
test_expect_success 'completed merge (git commit) with --no-commit and --autostash' '
git reset --hard c1 &&
git merge-file file file.orig file.9 &&
git diff >expect &&
git merge --no-commit --autostash c2 &&
git stash show -p MERGE_AUTOSTASH >actual &&
test_cmp expect actual &&
git commit 2>err &&
test_grep "Applied autostash." err &&
git show HEAD:file >merge-result &&
test_cmp result.1-5 merge-result &&
test_cmp result.1-5-9 file
'
test_expect_success 'completed merge (git merge --continue) with --no-commit and --autostash' '
git reset --hard c1 &&
git merge-file file file.orig file.9 &&
git diff >expect &&
git merge --no-commit --autostash c2 &&
git stash show -p MERGE_AUTOSTASH >actual &&
test_cmp expect actual &&
git merge --continue 2>err &&
test_grep "Applied autostash." err &&
git show HEAD:file >merge-result &&
test_cmp result.1-5 merge-result &&
test_cmp result.1-5-9 file
'
test_expect_success 'aborted merge (merge --abort) with --no-commit and --autostash' '
git reset --hard c1 &&
git merge-file file file.orig file.9 &&
git diff >expect &&
git merge --no-commit --autostash c2 &&
git stash show -p MERGE_AUTOSTASH >actual &&
test_cmp expect actual &&
git merge --abort 2>err &&
test_grep "Applied autostash." err &&
git diff >actual &&
test_cmp expect actual
'
test_expect_success 'aborted merge (reset --hard) with --no-commit and --autostash' '
git reset --hard c1 &&
git merge-file file file.orig file.9 &&
git diff >expect &&
git merge --no-commit --autostash c2 &&
git stash show -p MERGE_AUTOSTASH >actual &&
test_cmp expect actual &&
git reset --hard 2>err &&
test_grep "Autostash exists; creating a new stash entry." err &&
git diff --exit-code
'
test_expect_success 'quit merge with --no-commit and --autostash' '
git reset --hard c1 &&
git merge-file file file.orig file.9 &&
git diff >expect &&
git merge --no-commit --autostash c2 &&
git stash show -p MERGE_AUTOSTASH >actual &&
test_cmp expect actual &&
git diff HEAD >expect &&
git merge --quit 2>err &&
test_grep "Autostash exists; creating a new stash entry." err &&
git diff HEAD >actual &&
test_cmp expect actual
'
test_expect_success 'merge with conflicted --autostash changes' '
git reset --hard c1 &&
git merge-file file file.orig file.9y &&
git diff >expect &&
test_when_finished "test_might_fail git stash drop" &&
git merge --autostash c3 2>err &&
test_grep "Applying autostash resulted in conflicts." err &&
git show HEAD:file >merge-result &&
test_cmp result.1-9 merge-result &&
git stash show -p >actual &&
test_cmp expect actual
'
cat >expected.branch <<\EOF
Merge branch 'c5-branch' (early part)
EOF
cat >expected.tag <<\EOF
Merge commit 'c5~1'
EOF
test_expect_success 'merge early part of c2' '
git reset --hard c3 &&
echo c4 >c4.c &&
git add c4.c &&
git commit -m c4 &&
git tag c4 &&
echo c5 >c5.c &&
git add c5.c &&
git commit -m c5 &&
git tag c5 &&
git reset --hard c3 &&
echo c6 >c6.c &&
git add c6.c &&
git commit -m c6 &&
git tag c6 &&
git branch -f c5-branch c5 &&
git merge c5-branch~1 &&
git show -s --pretty=tformat:%s HEAD >actual.branch &&
git reset --keep HEAD^ &&
git merge c5~1 &&
git show -s --pretty=tformat:%s HEAD >actual.tag &&
test_cmp expected.branch actual.branch &&
test_cmp expected.tag actual.tag
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge --no-ff --no-commit && commit' '
git reset --hard c0 &&
git merge --no-ff --no-commit c1 &&
EDITOR=: git commit &&
verify_parents $c0 $c1
'
test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'amending no-ff merge commit' '
EDITOR=: git commit --amend &&
verify_parents $c0 $c1
'
test_debug 'git log --graph --decorate --oneline --all'
cat >editor <<\EOF
#!/bin/sh
# Add a new message string that was not in the template
(
echo "Merge work done on the side branch c1"
echo
cat "$1"
) >"$1.tmp" && mv "$1.tmp" "$1"
# strip comments and blank lines from end of message
sed -e '/^#/d' "$1" | sed -e :a -e '/^\n*$/{$d;N;ba' -e '}' >expected
EOF
chmod 755 editor
test_expect_success 'merge --no-ff --edit' '
git reset --hard c0 &&
EDITOR=./editor git merge --no-ff --edit c1 &&
verify_parents $c0 $c1 &&
git cat-file commit HEAD >raw &&
grep "work done on the side branch" raw &&
sed "1,/^$/d" >actual raw &&
test_cmp expected actual
'
test_expect_success 'merge annotated/signed tag w/o tracking' '
test_when_finished "rm -rf dst; git tag -d anno1" &&
git tag -a -m "anno c1" anno1 c1 &&
git init dst &&
git rev-parse c1 >dst/expect &&
(
# c0 fast-forwards to c1 but because this repository
# is not a "downstream" whose refs/tags follows along
# tag from the "upstream", this pull defaults to --no-ff
cd dst &&
git pull .. c0 &&
git pull .. anno1 &&
git rev-parse HEAD^2 >actual &&
test_cmp expect actual
)
'
test_expect_success 'merge annotated/signed tag w/ tracking' '
test_when_finished "rm -rf dst; git tag -d anno1" &&
git tag -a -m "anno c1" anno1 c1 &&
git init dst &&
git rev-parse c1 >dst/expect &&
(
# c0 fast-forwards to c1 and because this repository
# is a "downstream" whose refs/tags follows along
# tag from the "upstream", this pull defaults to --ff
cd dst &&
git remote add origin .. &&
git pull origin c0 &&
git fetch origin &&
git merge anno1 &&
git rev-parse HEAD >actual &&
test_cmp expect actual
)
'
test_expect_success GPG 'merge --ff-only tag' '
git reset --hard c0 &&
git commit --allow-empty -m "A newer commit" &&
git tag -s -m "A newer commit" signed &&
git reset --hard c0 &&
git merge --ff-only signed &&
git rev-parse signed^0 >expect &&
git rev-parse HEAD >actual &&
test_cmp expect actual
'
test_expect_success GPG 'merge --no-edit tag should skip editor' '
git reset --hard c0 &&
git commit --allow-empty -m "A newer commit" &&
git tag -f -s -m "A newer commit" signed &&
git reset --hard c0 &&
EDITOR=false git merge --no-edit --no-ff signed &&
git rev-parse signed^0 >expect &&
git rev-parse HEAD^2 >actual &&
test_cmp expect actual
'
test_expect_success 'set up mod-256 conflict scenario' '
# 256 near-identical stanzas...
for i in $(test_seq 1 256); do
for j in 1 2 3 4 5; do
echo $i-$j || return 1
done
done >file &&
git add file &&
git commit -m base &&
# one side changes the first line of each to "main"
sed s/-1/-main/ file >tmp &&
mv tmp file &&
git commit -am main &&
# and the other to "side"; merging the two will
# yield 256 separate conflicts
git checkout -b side HEAD^ &&
sed s/-1/-side/ file >tmp &&
mv tmp file &&
git commit -am side
'
test_expect_success 'merge detects mod-256 conflicts (recursive)' '
git reset --hard &&
test_must_fail git merge -s recursive main
'
test_expect_success 'merge detects mod-256 conflicts (resolve)' '
git reset --hard &&
test_must_fail git merge -s resolve main
'
test_expect_success 'merge nothing into void' '
git init void &&
(
cd void &&
git remote add up .. &&
git fetch up &&
test_must_fail git merge FETCH_HEAD
)
'
test_expect_success 'merge can be completed with --continue' '
git reset --hard c0 &&
git merge --no-ff --no-commit c1 &&
git merge --continue &&
verify_parents $c0 $c1
'
write_script .git/FAKE_EDITOR <<EOF
# kill -TERM command added below.
EOF
test_expect_success EXECKEEPSPID 'killed merge can be completed with --continue' '
git reset --hard c0 &&
! "$SHELL_PATH" -c '\''
echo kill -TERM $$ >>.git/FAKE_EDITOR
GIT_EDITOR=.git/FAKE_EDITOR
export GIT_EDITOR
exec git merge --no-ff --edit c1'\'' &&
git merge --continue &&
verify_parents $c0 $c1
'
test_expect_success 'merge --quit' '
git init merge-quit &&
(
cd merge-quit &&
test_commit base &&
echo one >>base.t &&
git commit -am one &&
git branch one &&
git checkout base &&
echo two >>base.t &&
git commit -am two &&
test_must_fail git -c rerere.enabled=true merge one &&
test_path_is_file .git/MERGE_HEAD &&
test_path_is_file .git/MERGE_MODE &&
test_path_is_file .git/MERGE_MSG &&
git rerere status >rerere.before &&
git merge --quit &&
test_path_is_missing .git/MERGE_HEAD &&
test_path_is_missing .git/MERGE_MODE &&
test_path_is_missing .git/MERGE_MSG &&
git rerere status >rerere.after &&
test_must_be_empty rerere.after &&
! test_cmp rerere.after rerere.before
)
'
test_expect_success 'merge suggests matching remote refname' '
git commit --allow-empty -m not-local &&
git update-ref refs/remotes/origin/not-local HEAD &&
git reset --hard HEAD^ &&
# This is white-box testing hackery; we happen to know
# that reading packed refs is more picky about the memory
# ownership of strings we pass to for_each_ref() callbacks.
git pack-refs --all --prune &&
test_must_fail git merge not-local 2>stderr &&
grep origin/not-local stderr
'
test_expect_success 'suggested names are not ambiguous' '
git update-ref refs/heads/origin/not-local HEAD &&
test_must_fail git merge not-local 2>stderr &&
grep remotes/origin/not-local stderr
'
test_done
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