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93 lines
3.2 KiB
93 lines
3.2 KiB
#!/bin/sh |
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test_description='git rebase tests for -Xsubtree |
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This test runs git rebase and tests the subtree strategy. |
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' |
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GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main |
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export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME |
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. ./test-lib.sh |
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. "$TEST_DIRECTORY"/lib-rebase.sh |
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commit_message() { |
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git log --pretty=format:%s -1 "$1" |
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} |
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# There are a few bugs in the rebase with regards to the subtree strategy, and |
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# this test script tries to document them. First, the following commit history |
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# is generated (the onelines are shown, time flows from left to right): |
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# |
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# topic_1 - topic_2 - topic_3 |
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# \ |
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# README ---------------------- Add subproject main - topic_4 - files_subtree/topic_5 |
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# |
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# Where the merge moves the files topic_[123].t into the subdirectory |
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# files_subtree/ and topic_4 as well as files_subtree/topic_5 add files to that |
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# directory directly. |
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# |
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# Then, in subsequent test cases, `git filter-branch` is used to distill just |
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# the commits that touch files_subtree/. To give it a final pre-rebase touch, |
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# an empty commit is added on top. The pre-rebase commit history looks like |
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# this: |
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# |
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# Add subproject main - topic_4 - files_subtree/topic_5 - Empty commit |
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# |
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# where the root commit adds three files: topic_1.t, topic_2.t and topic_3.t. |
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# |
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# This commit history is then rebased onto `topic_3` with the |
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# `-Xsubtree=files_subtree` option in two different ways: |
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# |
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# 1. without specifying a rebase backend |
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# 2. using the `--rebase-merges` backend |
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test_expect_success 'setup' ' |
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test_commit README && |
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git init files && |
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test_commit -C files topic_1 && |
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test_commit -C files topic_2 && |
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test_commit -C files topic_3 && |
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: perform subtree merge into files_subtree/ && |
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git fetch files refs/heads/main:refs/heads/files-main && |
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git merge -s ours --no-commit --allow-unrelated-histories \ |
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files-main && |
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git read-tree --prefix=files_subtree -u files-main && |
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git commit -m "Add subproject main" && |
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: add two extra commits to rebase && |
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test_commit -C files_subtree topic_4 && |
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test_commit files_subtree/topic_5 && |
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git checkout -b to-rebase && |
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git fast-export --no-data HEAD -- files_subtree/ | |
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sed -e "s%\([0-9a-f]\{40\} \)files_subtree/%\1%" | |
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git fast-import --force --quiet && |
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git reset --hard && |
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git commit -m "Empty commit" --allow-empty |
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' |
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test_expect_success 'Rebase -Xsubtree --empty=ask --onto commit' ' |
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reset_rebase && |
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git checkout -b rebase-onto to-rebase && |
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test_must_fail git rebase -Xsubtree=files_subtree --empty=ask --onto files-main main && |
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: first pick results in no changes && |
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git rebase --skip && |
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verbose test "$(commit_message HEAD~2)" = "topic_4" && |
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verbose test "$(commit_message HEAD~)" = "files_subtree/topic_5" && |
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verbose test "$(commit_message HEAD)" = "Empty commit" |
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' |
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test_expect_success 'Rebase -Xsubtree --empty=ask --rebase-merges --onto commit' ' |
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reset_rebase && |
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git checkout -b rebase-merges-onto to-rebase && |
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test_must_fail git rebase -Xsubtree=files_subtree --empty=ask --rebase-merges --onto files-main --root && |
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: first pick results in no changes && |
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git rebase --skip && |
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verbose test "$(commit_message HEAD~2)" = "topic_4" && |
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verbose test "$(commit_message HEAD~)" = "files_subtree/topic_5" && |
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verbose test "$(commit_message HEAD)" = "Empty commit" |
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' |
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test_done
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