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authorRamkumar Ramachandra <artagnon@gmail.com>2013-05-12 11:56:41 (GMT)
committerJunio C Hamano <gitster@pobox.com>2013-05-29 17:34:54 (GMT)
commit587947750bd73544a6a99811f0ddfd64e1ff1445 (patch)
treeb26e7a4526e1e2a658e65e18da0ebde73474362f /t/t3420-rebase-autostash.sh
parent01a1e6465fea95c2b4303ed6c9bd14b276456f2d (diff)
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rebase: implement --[no-]autostash and rebase.autostash
This new feature allows a rebase to be executed on a dirty worktree or index. It works by creating a temporary "dangling merge commit" out of the worktree and index changes (via 'git stash create'), and automatically applying it after a successful rebase or abort. rebase stores the SHA-1 hex of the temporary merge commit, along with the rest of the rebase state, in either .git/{rebase-merge,rebase-apply}/autostash depending on the kind of rebase. Since $state_dir is automatically removed at the end of a successful rebase or abort, so is the autostash. The advantage of this approach is that we do not affect the normal stash's reflogs, making the autostash invisible to the end-user. This means that you can use 'git stash' during a rebase as usual. When the autostash application results in a conflict, we push $state_dir/autostash onto the normal stash and remove $state_dir ending the rebase. The user can inspect the stash, and pop or drop at any time. Most significantly, this feature means that a caller like pull (with pull.rebase set to true) can easily be patched to remove the require_clean_work_tree restriction. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't/t3420-rebase-autostash.sh')
-rwxr-xr-xt/t3420-rebase-autostash.sh148
1 files changed, 148 insertions, 0 deletions
diff --git a/t/t3420-rebase-autostash.sh b/t/t3420-rebase-autostash.sh
new file mode 100755
index 0000000..479cbb2
--- /dev/null
+++ b/t/t3420-rebase-autostash.sh
@@ -0,0 +1,148 @@
+#!/bin/sh
+#
+# Copyright (c) 2013 Ramkumar Ramachandra
+#
+
+test_description='git rebase --autostash tests'
+. ./test-lib.sh
+
+test_expect_success setup '
+ echo hello-world >file0 &&
+ git add . &&
+ test_tick &&
+ git commit -m "initial commit" &&
+ git checkout -b feature-branch &&
+ echo another-hello >file1 &&
+ echo goodbye >file2 &&
+ git add . &&
+ test_tick &&
+ git commit -m "second commit" &&
+ echo final-goodbye >file3 &&
+ git add . &&
+ test_tick &&
+ git commit -m "third commit" &&
+ git checkout -b unrelated-onto-branch master &&
+ echo unrelated >file4 &&
+ git add . &&
+ test_tick &&
+ git commit -m "unrelated commit" &&
+ git checkout -b related-onto-branch master &&
+ echo conflicting-change >file2 &&
+ git add . &&
+ test_tick &&
+ git commit -m "related commit"
+'
+
+testrebase() {
+ type=$1
+ dotest=$2
+
+ test_expect_success "rebase$type: dirty worktree, non-conflicting rebase" '
+ test_config rebase.autostash true &&
+ git reset --hard &&
+ git checkout -b rebased-feature-branch feature-branch &&
+ test_when_finished git branch -D rebased-feature-branch &&
+ echo dirty >>file3 &&
+ git rebase$type unrelated-onto-branch &&
+ grep unrelated file4 &&
+ grep dirty file3 &&
+ git checkout feature-branch
+ '
+
+ test_expect_success "rebase$type: dirty index, non-conflicting rebase" '
+ test_config rebase.autostash true &&
+ git reset --hard &&
+ git checkout -b rebased-feature-branch feature-branch &&
+ test_when_finished git branch -D rebased-feature-branch &&
+ echo dirty >>file3 &&
+ git add file3 &&
+ git rebase$type unrelated-onto-branch &&
+ grep unrelated file4 &&
+ grep dirty file3 &&
+ git checkout feature-branch
+ '
+
+ test_expect_success "rebase$type: conflicting rebase" '
+ test_config rebase.autostash true &&
+ git reset --hard &&
+ git checkout -b rebased-feature-branch feature-branch &&
+ test_when_finished git branch -D rebased-feature-branch &&
+ echo dirty >>file3 &&
+ test_must_fail git rebase$type related-onto-branch &&
+ test_path_is_file $dotest/autostash &&
+ ! grep dirty file3 &&
+ rm -rf $dotest &&
+ git reset --hard &&
+ git checkout feature-branch
+ '
+
+ test_expect_success "rebase$type: --continue" '
+ test_config rebase.autostash true &&
+ git reset --hard &&
+ git checkout -b rebased-feature-branch feature-branch &&
+ test_when_finished git branch -D rebased-feature-branch &&
+ echo dirty >>file3 &&
+ test_must_fail git rebase$type related-onto-branch &&
+ test_path_is_file $dotest/autostash &&
+ ! grep dirty file3 &&
+ echo "conflicting-plus-goodbye" >file2 &&
+ git add file2 &&
+ git rebase --continue &&
+ test_path_is_missing $dotest/autostash &&
+ grep dirty file3 &&
+ git checkout feature-branch
+ '
+
+ test_expect_success "rebase$type: --skip" '
+ test_config rebase.autostash true &&
+ git reset --hard &&
+ git checkout -b rebased-feature-branch feature-branch &&
+ test_when_finished git branch -D rebased-feature-branch &&
+ echo dirty >>file3 &&
+ test_must_fail git rebase$type related-onto-branch &&
+ test_path_is_file $dotest/autostash &&
+ ! grep dirty file3 &&
+ git rebase --skip &&
+ test_path_is_missing $dotest/autostash &&
+ grep dirty file3 &&
+ git checkout feature-branch
+ '
+
+ test_expect_success "rebase$type: --abort" '
+ test_config rebase.autostash true &&
+ git reset --hard &&
+ git checkout -b rebased-feature-branch feature-branch &&
+ test_when_finished git branch -D rebased-feature-branch &&
+ echo dirty >>file3 &&
+ test_must_fail git rebase$type related-onto-branch &&
+ test_path_is_file $dotest/autostash &&
+ ! grep dirty file3 &&
+ git rebase --abort &&
+ test_path_is_missing $dotest/autostash &&
+ grep dirty file3 &&
+ git checkout feature-branch
+ '
+
+ test_expect_success "rebase$type: non-conflicting rebase, conflicting stash" '
+ test_config rebase.autostash true &&
+ git reset --hard &&
+ git checkout -b rebased-feature-branch feature-branch &&
+ test_when_finished git branch -D rebased-feature-branch &&
+ echo dirty >file4 &&
+ git add file4 &&
+ git rebase$type unrelated-onto-branch &&
+ test_path_is_missing $dotest &&
+ git reset --hard &&
+ grep unrelated file4 &&
+ ! grep dirty file4 &&
+ git checkout feature-branch &&
+ git stash pop &&
+ grep dirty file4
+ '
+}
+
+testrebase "" .git/rebase-apply
+testrebase " --merge" .git/rebase-merge
+testrebase " --interactive" .git/rebase-merge
+
+test_done