diff options
| -rwxr-xr-x | git-merge-octopus.sh | 6 | ||||
| -rwxr-xr-x | t/t6044-merge-unrelated-index-changes.sh | 153 |
2 files changed, 159 insertions, 0 deletions
diff --git a/git-merge-octopus.sh b/git-merge-octopus.sh index 8643f74cb0..dc2fd1b5a4 100755 --- a/git-merge-octopus.sh +++ b/git-merge-octopus.sh @@ -44,6 +44,12 @@ esac # MRC is the current "merge reference commit" # MRT is the current "merge result tree" +if ! git diff-index --quiet --cached HEAD -- +then + echo "Error: Your local changes to the following files would be overwritten by merge" + git diff-index --cached --name-only HEAD -- | sed -e 's/^/ /' + exit 2 +fi MRC=$(git rev-parse --verify -q $head) MRT=$(git write-tree) NON_FF_MERGE=0 diff --git a/t/t6044-merge-unrelated-index-changes.sh b/t/t6044-merge-unrelated-index-changes.sh new file mode 100755 index 0000000000..20a3ffed69 --- /dev/null +++ b/t/t6044-merge-unrelated-index-changes.sh @@ -0,0 +1,153 @@ +#!/bin/sh + +test_description="merges with unrelated index changes" + +. ./test-lib.sh + +# Testcase for some simple merges +# A +# o-----o B +# \ +# \---o C +# \ +# \-o D +# \ +# o E +# Commit A: some file a +# Commit B: adds file b, modifies end of a +# Commit C: adds file c +# Commit D: adds file d, modifies beginning of a +# Commit E: renames a->subdir/a, adds subdir/e + +test_expect_success 'setup trivial merges' ' + seq 1 10 >a && + git add a && + test_tick && git commit -m A && + + git branch A && + git branch B && + git branch C && + git branch D && + git branch E && + + git checkout B && + echo b >b && + echo 11 >>a && + git add a b && + test_tick && git commit -m B && + + git checkout C && + echo c >c && + git add c && + test_tick && git commit -m C && + + git checkout D && + seq 2 10 >a && + echo d >d && + git add a d && + test_tick && git commit -m D && + + git checkout E && + mkdir subdir && + git mv a subdir/a && + echo e >subdir/e && + git add subdir && + test_tick && git commit -m E +' + +test_expect_success 'ff update' ' + git reset --hard && + git checkout A^0 && + + touch random_file && git add random_file && + + git merge E^0 && + + test_must_fail git rev-parse HEAD:random_file && + test "$(git diff --name-only --cached E)" = "random_file" +' + +test_expect_success 'ff update, important file modified' ' + git reset --hard && + git checkout A^0 && + + mkdir subdir && + touch subdir/e && + git add subdir/e && + + test_must_fail git merge E^0 +' + +test_expect_success 'resolve, trivial' ' + git reset --hard && + git checkout B^0 && + + touch random_file && git add random_file && + + test_must_fail git merge -s resolve C^0 +' + +test_expect_success 'resolve, non-trivial' ' + git reset --hard && + git checkout B^0 && + + touch random_file && git add random_file && + + test_must_fail git merge -s resolve D^0 +' + +test_expect_success 'recursive' ' + git reset --hard && + git checkout B^0 && + + touch random_file && git add random_file && + + test_must_fail git merge -s recursive C^0 +' + +test_expect_success 'octopus, unrelated file touched' ' + git reset --hard && + git checkout B^0 && + + touch random_file && git add random_file && + + test_must_fail git merge C^0 D^0 +' + +test_expect_success 'octopus, related file removed' ' + git reset --hard && + git checkout B^0 && + + git rm b && + + test_must_fail git merge C^0 D^0 +' + +test_expect_success 'octopus, related file modified' ' + git reset --hard && + git checkout B^0 && + + echo 12 >>a && git add a && + + test_must_fail git merge C^0 D^0 +' + +test_expect_success 'ours' ' + git reset --hard && + git checkout B^0 && + + touch random_file && git add random_file && + + test_must_fail git merge -s ours C^0 +' + +test_expect_success 'subtree' ' + git reset --hard && + git checkout B^0 && + + touch random_file && git add random_file && + + test_must_fail git merge -s subtree E^0 +' + +test_done |