diff options
Diffstat (limited to 'third_party/git/t/t3427-rebase-subtree.sh')
| -rwxr-xr-x | third_party/git/t/t3427-rebase-subtree.sh | 160 |
1 files changed, 87 insertions, 73 deletions
diff --git a/third_party/git/t/t3427-rebase-subtree.sh b/third_party/git/t/t3427-rebase-subtree.sh index 79e43a370b..d8640522a0 100755 --- a/third_party/git/t/t3427-rebase-subtree.sh +++ b/third_party/git/t/t3427-rebase-subtree.sh @@ -11,99 +11,113 @@ commit_message() { git log --pretty=format:%s -1 "$1" } -# There are a few bugs in the rebase with regards to the subtree strategy, and -# this test script tries to document them. First, the following commit history -# is generated (the onelines are shown, time flows from left to right): -# -# master1 - master2 - master3 -# \ -# README ---------------------- Add subproject master - master4 - files_subtree/master5 -# -# Where the merge moves the files master[123].t into the subdirectory -# files_subtree/ and master4 as well as files_subtree/master5 add files to that -# directory directly. -# -# Then, in subsequent test cases, `git filter-branch` is used to distill just -# the commits that touch files_subtree/. To give it a final pre-rebase touch, -# an empty commit is added on top. The pre-rebase commit history looks like -# this: -# -# Add subproject master - master4 - files_subtree/master5 - Empty commit -# -# where the root commit adds three files: master1.t, master2.t and master3.t. -# -# This commit history is then rebased onto `master3` with the -# `-Xsubtree=files_subtree` option in three different ways: -# -# 1. using `--preserve-merges` -# 2. using `--preserve-merges` and --keep-empty -# 3. without specifying a rebase backend - test_expect_success 'setup' ' test_commit README && - - git init files && - test_commit -C files master1 && - test_commit -C files master2 && - test_commit -C files master3 && - - : perform subtree merge into files_subtree/ && - git fetch files refs/heads/master:refs/heads/files-master && - git merge -s ours --no-commit --allow-unrelated-histories \ - files-master && - git read-tree --prefix=files_subtree -u files-master && - git commit -m "Add subproject master" && - - : add two extra commits to rebase && - test_commit -C files_subtree master4 && - test_commit files_subtree/master5 && - - git checkout -b to-rebase && - git fast-export --no-data HEAD -- files_subtree/ | - sed -e "s%\([0-9a-f]\{40\} \)files_subtree/%\1%" | - git fast-import --force --quiet && - git reset --hard && - git commit -m "Empty commit" --allow-empty + mkdir files && + ( + cd files && + git init && + test_commit master1 && + test_commit master2 && + test_commit master3 + ) && + git fetch files master && + git branch files-master FETCH_HEAD && + git read-tree --prefix=files_subtree files-master && + git checkout -- files_subtree && + tree=$(git write-tree) && + head=$(git rev-parse HEAD) && + rev=$(git rev-parse --verify files-master^0) && + commit=$(git commit-tree -p $head -p $rev -m "Add subproject master" $tree) && + git update-ref HEAD $commit && + ( + cd files_subtree && + test_commit master4 + ) && + test_commit files_subtree/master5 ' # FAILURE: Does not preserve master4. -test_expect_failure REBASE_P 'Rebase -Xsubtree --preserve-merges --onto commit' ' +test_expect_failure REBASE_P \ + 'Rebase -Xsubtree --preserve-merges --onto commit 4' ' reset_rebase && - git checkout -b rebase-preserve-merges to-rebase && + git checkout -b rebase-preserve-merges-4 master && + git filter-branch --prune-empty -f --subdirectory-filter files_subtree && + git commit -m "Empty commit" --allow-empty && + git rebase -Xsubtree=files_subtree --preserve-merges --onto files-master master && + verbose test "$(commit_message HEAD~)" = "files_subtree/master4" +' + +# FAILURE: Does not preserve master5. +test_expect_failure REBASE_P \ + 'Rebase -Xsubtree --preserve-merges --onto commit 5' ' + reset_rebase && + git checkout -b rebase-preserve-merges-5 master && + git filter-branch --prune-empty -f --subdirectory-filter files_subtree && + git commit -m "Empty commit" --allow-empty && git rebase -Xsubtree=files_subtree --preserve-merges --onto files-master master && - verbose test "$(commit_message HEAD~)" = "master4" && verbose test "$(commit_message HEAD)" = "files_subtree/master5" ' # FAILURE: Does not preserve master4. -test_expect_failure REBASE_P 'Rebase -Xsubtree --keep-empty --preserve-merges --onto commit' ' +test_expect_failure REBASE_P \ + 'Rebase -Xsubtree --keep-empty --preserve-merges --onto commit 4' ' reset_rebase && - git checkout -b rebase-keep-empty to-rebase && + git checkout -b rebase-keep-empty-4 master && + git filter-branch --prune-empty -f --subdirectory-filter files_subtree && + git commit -m "Empty commit" --allow-empty && git rebase -Xsubtree=files_subtree --keep-empty --preserve-merges --onto files-master master && - verbose test "$(commit_message HEAD~2)" = "master4" && - verbose test "$(commit_message HEAD~)" = "files_subtree/master5" && - verbose test "$(commit_message HEAD)" = "Empty commit" + verbose test "$(commit_message HEAD~2)" = "files_subtree/master4" ' -test_expect_success 'Rebase -Xsubtree --empty=ask --onto commit' ' +# FAILURE: Does not preserve master5. +test_expect_failure REBASE_P \ + 'Rebase -Xsubtree --keep-empty --preserve-merges --onto commit 5' ' reset_rebase && - git checkout -b rebase-onto to-rebase && - test_must_fail git rebase -Xsubtree=files_subtree --empty=ask --onto files-master master && - : first pick results in no changes && - git rebase --skip && - verbose test "$(commit_message HEAD~2)" = "master4" && - verbose test "$(commit_message HEAD~)" = "files_subtree/master5" && + git checkout -b rebase-keep-empty-5 master && + git filter-branch --prune-empty -f --subdirectory-filter files_subtree && + git commit -m "Empty commit" --allow-empty && + git rebase -Xsubtree=files_subtree --keep-empty --preserve-merges --onto files-master master && + verbose test "$(commit_message HEAD~)" = "files_subtree/master5" +' + +# FAILURE: Does not preserve Empty. +test_expect_failure REBASE_P \ + 'Rebase -Xsubtree --keep-empty --preserve-merges --onto empty commit' ' + reset_rebase && + git checkout -b rebase-keep-empty-empty master && + git filter-branch --prune-empty -f --subdirectory-filter files_subtree && + git commit -m "Empty commit" --allow-empty && + git rebase -Xsubtree=files_subtree --keep-empty --preserve-merges --onto files-master master && verbose test "$(commit_message HEAD)" = "Empty commit" ' -test_expect_success 'Rebase -Xsubtree --empty=ask --rebase-merges --onto commit' ' +# FAILURE: fatal: Could not parse object +test_expect_failure 'Rebase -Xsubtree --onto commit 4' ' + reset_rebase && + git checkout -b rebase-onto-4 master && + git filter-branch --prune-empty -f --subdirectory-filter files_subtree && + git commit -m "Empty commit" --allow-empty && + git rebase -Xsubtree=files_subtree --onto files-master master && + verbose test "$(commit_message HEAD~2)" = "files_subtree/master4" +' + +# FAILURE: fatal: Could not parse object +test_expect_failure 'Rebase -Xsubtree --onto commit 5' ' + reset_rebase && + git checkout -b rebase-onto-5 master && + git filter-branch --prune-empty -f --subdirectory-filter files_subtree && + git commit -m "Empty commit" --allow-empty && + git rebase -Xsubtree=files_subtree --onto files-master master && + verbose test "$(commit_message HEAD~)" = "files_subtree/master5" +' +# FAILURE: fatal: Could not parse object +test_expect_failure 'Rebase -Xsubtree --onto empty commit' ' reset_rebase && - git checkout -b rebase-merges-onto to-rebase && - test_must_fail git rebase -Xsubtree=files_subtree --empty=ask --rebase-merges --onto files-master --root && - : first pick results in no changes && - git rebase --skip && - verbose test "$(commit_message HEAD~2)" = "master4" && - verbose test "$(commit_message HEAD~)" = "files_subtree/master5" && + git checkout -b rebase-onto-empty master && + git filter-branch --prune-empty -f --subdirectory-filter files_subtree && + git commit -m "Empty commit" --allow-empty && + git rebase -Xsubtree=files_subtree --onto files-master master && verbose test "$(commit_message HEAD)" = "Empty commit" ' |