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+#!/bin/sh
+#
+# Copyright (c) 2005 Amos Waterland
+#
+
+test_description='git rebase assorted tests
+
+This test runs git rebase and checks that the author information is not lost
+among other things.
+'
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+. ./test-lib.sh
+
+GIT_AUTHOR_NAME=author@name
+GIT_AUTHOR_EMAIL=bogus@email@address
+export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL
+
+test_expect_success 'prepare repository with topic branches' '
+ test_commit "Add A." A First First &&
+ git checkout -b force-3way &&
+ echo Dummy >Y &&
+ git update-index --add Y &&
+ git commit -m "Add Y." &&
+ git checkout -b filemove &&
+ git reset --soft main &&
+ mkdir D &&
+ git mv A D/A &&
+ git commit -m "Move A." &&
+ git checkout -b my-topic-branch main &&
+ test_commit "Add B." B Second Second &&
+ git checkout -f main &&
+ echo Third >>A &&
+ git update-index A &&
+ git commit -m "Modify A." &&
+ git checkout -b side my-topic-branch &&
+ echo Side >>C &&
+ git add C &&
+ git commit -m "Add C" &&
+ git checkout -f my-topic-branch &&
+ git tag topic
+'
+
+test_expect_success 'rebase on dirty worktree' '
+ echo dirty >>A &&
+ test_must_fail git rebase main
+'
+
+test_expect_success 'rebase on dirty cache' '
+ git add A &&
+ test_must_fail git rebase main
+'
+
+test_expect_success 'rebase against main' '
+ git reset --hard HEAD &&
+ git rebase main
+'
+
+test_expect_success 'rebase sets ORIG_HEAD to pre-rebase state' '
+ git checkout -b orig-head topic &&
+ pre="$(git rev-parse --verify HEAD)" &&
+ git rebase main &&
+ test_cmp_rev "$pre" ORIG_HEAD &&
+ test_cmp_rev ! "$pre" HEAD
+'
+
+test_expect_success 'rebase, with <onto> and <upstream> specified as :/quuxery' '
+ test_when_finished "git branch -D torebase" &&
+ git checkout -b torebase my-topic-branch^ &&
+ upstream=$(git rev-parse ":/Add B") &&
+ onto=$(git rev-parse ":/Add A") &&
+ git rebase --onto $onto $upstream &&
+ git reset --hard my-topic-branch^ &&
+ git rebase --onto ":/Add A" ":/Add B" &&
+ git checkout my-topic-branch
+'
+
+test_expect_success 'the rebase operation should not have destroyed author information' '
+ ! (git log | grep "Author:" | grep "<>")
+'
+
+test_expect_success 'the rebase operation should not have destroyed author information (2)' "
+ git log -1 |
+ grep 'Author: $GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>'
+"
+
+test_expect_success 'HEAD was detached during rebase' '
+ test $(git rev-parse HEAD@{1}) != $(git rev-parse my-topic-branch@{1})
+'
+
+test_expect_success 'rebase from ambiguous branch name' '
+ git checkout -b topic side &&
+ git rebase main
+'
+
+test_expect_success 'rebase off of the previous branch using "-"' '
+ git checkout main &&
+ git checkout HEAD^ &&
+ git rebase @{-1} >expect.messages &&
+ git merge-base main HEAD >expect.forkpoint &&
+
+ git checkout main &&
+ git checkout HEAD^ &&
+ git rebase - >actual.messages &&
+ git merge-base main HEAD >actual.forkpoint &&
+
+ test_cmp expect.forkpoint actual.forkpoint &&
+ # the next one is dubious---we may want to say "-",
+ # instead of @{-1}, in the message
+ test_cmp expect.messages actual.messages
+'
+
+test_expect_success 'rebase a single mode change' '
+ git checkout main &&
+ git branch -D topic &&
+ echo 1 >X &&
+ git add X &&
+ test_tick &&
+ git commit -m prepare &&
+ git checkout -b modechange HEAD^ &&
+ echo 1 >X &&
+ git add X &&
+ test_chmod +x A &&
+ test_tick &&
+ git commit -m modechange &&
+ GIT_TRACE=1 git rebase main
+'
+
+test_expect_success 'rebase is not broken by diff.renames' '
+ test_config diff.renames copies &&
+ git checkout filemove &&
+ GIT_TRACE=1 git rebase force-3way
+'
+
+test_expect_success 'setup: recover' '
+ test_might_fail git rebase --abort &&
+ git reset --hard &&
+ git checkout modechange
+'
+
+test_expect_success 'Show verbose error when HEAD could not be detached' '
+ >B &&
+ test_when_finished "rm -f B" &&
+ test_must_fail git rebase topic 2>output.err >output.out &&
+ test_i18ngrep "The following untracked working tree files would be overwritten by checkout:" output.err &&
+ test_i18ngrep B output.err
+'
+
+test_expect_success 'fail when upstream arg is missing and not on branch' '
+ git checkout topic &&
+ test_must_fail git rebase
+'
+
+test_expect_success 'fail when upstream arg is missing and not configured' '
+ git checkout -b no-config topic &&
+ test_must_fail git rebase
+'
+
+test_expect_success 'rebase works with format.useAutoBase' '
+ test_config format.useAutoBase true &&
+ git checkout topic &&
+ git rebase main
+'
+
+test_expect_success 'default to common base in @{upstream}s reflog if no upstream arg (--merge)' '
+ git checkout -b default-base main &&
+ git checkout -b default topic &&
+ git config branch.default.remote . &&
+ git config branch.default.merge refs/heads/default-base &&
+ git rebase --merge &&
+ git rev-parse --verify default-base >expect &&
+ git rev-parse default~1 >actual &&
+ test_cmp expect actual &&
+ git checkout default-base &&
+ git reset --hard HEAD^ &&
+ git checkout default &&
+ git rebase --merge &&
+ git rev-parse --verify default-base >expect &&
+ git rev-parse default~1 >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'default to common base in @{upstream}s reflog if no upstream arg (--apply)' '
+ git checkout -B default-base main &&
+ git checkout -B default topic &&
+ git config branch.default.remote . &&
+ git config branch.default.merge refs/heads/default-base &&
+ git rebase --apply &&
+ git rev-parse --verify default-base >expect &&
+ git rev-parse default~1 >actual &&
+ test_cmp expect actual &&
+ git checkout default-base &&
+ git reset --hard HEAD^ &&
+ git checkout default &&
+ git rebase --apply &&
+ git rev-parse --verify default-base >expect &&
+ git rev-parse default~1 >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'cherry-picked commits and fork-point work together' '
+ git checkout default-base &&
+ echo Amended >A &&
+ git commit -a --no-edit --amend &&
+ test_commit B B &&
+ test_commit new_B B "New B" &&
+ test_commit C C &&
+ git checkout default &&
+ git reset --hard default-base@{4} &&
+ test_commit D D &&
+ git cherry-pick -2 default-base^ &&
+ test_commit final_B B "Final B" &&
+ git rebase &&
+ echo Amended >expect &&
+ test_cmp expect A &&
+ echo "Final B" >expect &&
+ test_cmp expect B &&
+ echo C >expect &&
+ test_cmp expect C &&
+ echo D >expect &&
+ test_cmp expect D
+'
+
+test_expect_success 'rebase --apply -q is quiet' '
+ git checkout -b quiet topic &&
+ git rebase --apply -q main >output.out 2>&1 &&
+ test_must_be_empty output.out
+'
+
+test_expect_success 'rebase --merge -q is quiet' '
+ git checkout -B quiet topic &&
+ git rebase --merge -q main >output.out 2>&1 &&
+ test_must_be_empty output.out
+'
+
+test_expect_success 'Rebase a commit that sprinkles CRs in' '
+ (
+ echo "One" &&
+ echo "TwoQ" &&
+ echo "Three" &&
+ echo "FQur" &&
+ echo "Five"
+ ) | q_to_cr >CR &&
+ git add CR &&
+ test_tick &&
+ git commit -a -m "A file with a line with CR" &&
+ git tag file-with-cr &&
+ git checkout HEAD^0 &&
+ git rebase --onto HEAD^^ HEAD^ &&
+ git diff --exit-code file-with-cr:CR HEAD:CR
+'
+
+test_expect_success 'rebase can copy notes' '
+ git config notes.rewrite.rebase true &&
+ git config notes.rewriteRef "refs/notes/*" &&
+ test_commit n1 &&
+ test_commit n2 &&
+ test_commit n3 &&
+ git notes add -m"a note" n3 &&
+ git rebase --onto n1 n2 &&
+ test "a note" = "$(git notes show HEAD)"
+'
+
+test_expect_success 'rebase -m can copy notes' '
+ git reset --hard n3 &&
+ git rebase -m --onto n1 n2 &&
+ test "a note" = "$(git notes show HEAD)"
+'
+
+test_expect_success 'rebase commit with an ancient timestamp' '
+ git reset --hard &&
+
+ >old.one && git add old.one && test_tick &&
+ git commit --date="@12345 +0400" -m "Old one" &&
+ >old.two && git add old.two && test_tick &&
+ git commit --date="@23456 +0500" -m "Old two" &&
+ >old.three && git add old.three && test_tick &&
+ git commit --date="@34567 +0600" -m "Old three" &&
+
+ git cat-file commit HEAD^^ >actual &&
+ grep "author .* 12345 +0400$" actual &&
+ git cat-file commit HEAD^ >actual &&
+ grep "author .* 23456 +0500$" actual &&
+ git cat-file commit HEAD >actual &&
+ grep "author .* 34567 +0600$" actual &&
+
+ git rebase --onto HEAD^^ HEAD^ &&
+
+ git cat-file commit HEAD >actual &&
+ grep "author .* 34567 +0600$" actual
+'
+
+test_expect_success 'rebase with "From " line in commit message' '
+ git checkout -b preserve-from main~1 &&
+ cat >From_.msg <<EOF &&
+Somebody embedded an mbox in a commit message
+
+This is from so-and-so:
+
+From a@b Mon Sep 17 00:00:00 2001
+From: John Doe <nobody@example.com>
+Date: Sat, 11 Nov 2017 00:00:00 +0000
+Subject: not this message
+
+something
+EOF
+ >From_ &&
+ git add From_ &&
+ git commit -F From_.msg &&
+ git rebase main &&
+ git log -1 --pretty=format:%B >out &&
+ test_cmp From_.msg out
+'
+
+test_expect_success 'rebase --apply and --show-current-patch' '
+ test_create_repo conflict-apply &&
+ (
+ cd conflict-apply &&
+ test_commit init &&
+ echo one >>init.t &&
+ git commit -a -m one &&
+ echo two >>init.t &&
+ git commit -a -m two &&
+ git tag two &&
+ test_must_fail git rebase --apply -f --onto init HEAD^ &&
+ GIT_TRACE=1 git rebase --show-current-patch >/dev/null 2>stderr &&
+ grep "show.*$(git rev-parse two)" stderr
+ )
+'
+
+test_expect_success 'rebase --apply and .gitattributes' '
+ test_create_repo attributes &&
+ (
+ cd attributes &&
+ test_commit init &&
+ git config filter.test.clean "sed -e '\''s/smudged/clean/g'\''" &&
+ git config filter.test.smudge "sed -e '\''s/clean/smudged/g'\''" &&
+
+ test_commit second &&
+ git checkout -b test HEAD^ &&
+
+ echo "*.txt filter=test" >.gitattributes &&
+ git add .gitattributes &&
+ test_commit third &&
+
+ echo "This text is smudged." >a.txt &&
+ git add a.txt &&
+ test_commit fourth &&
+
+ git checkout -b removal HEAD^ &&
+ git rm .gitattributes &&
+ git add -u &&
+ test_commit fifth &&
+ git cherry-pick test &&
+
+ git checkout test &&
+ git rebase main &&
+ grep "smudged" a.txt &&
+
+ git checkout removal &&
+ git reset --hard &&
+ git rebase main &&
+ grep "clean" a.txt
+ )
+'
+
+test_expect_success 'rebase--merge.sh and --show-current-patch' '
+ test_create_repo conflict-merge &&
+ (
+ cd conflict-merge &&
+ test_commit init &&
+ echo one >>init.t &&
+ git commit -a -m one &&
+ echo two >>init.t &&
+ git commit -a -m two &&
+ git tag two &&
+ test_must_fail git rebase --merge --onto init HEAD^ &&
+ git rebase --show-current-patch >actual.patch &&
+ GIT_TRACE=1 git rebase --show-current-patch >/dev/null 2>stderr &&
+ grep "show.*REBASE_HEAD" stderr &&
+ test "$(git rev-parse REBASE_HEAD)" = "$(git rev-parse two)"
+ )
+'
+
+test_expect_success 'switch to branch checked out here' '
+ git checkout main &&
+ git rebase main main
+'
+
+test_expect_success 'switch to branch not checked out' '
+ git checkout main &&
+ git branch other &&
+ git rebase main other
+'
+
+test_expect_success 'switch to non-branch detaches HEAD' '
+ git checkout main &&
+ old_main=$(git rev-parse HEAD) &&
+ git rebase First Second^0 &&
+ test_cmp_rev HEAD Second &&
+ test_cmp_rev main $old_main &&
+ test_must_fail git symbolic-ref HEAD
+'
+
+test_expect_success 'refuse to switch to branch checked out elsewhere' '
+ git checkout main &&
+ git worktree add wt &&
+ test_must_fail git -C wt rebase main main 2>err &&
+ test_i18ngrep "already checked out" err
+'
+
+test_expect_success MINGW,SYMLINKS_WINDOWS 'rebase when .git/logs is a symlink' '
+ git checkout main &&
+ mv .git/logs actual_logs &&
+ cmd //c "mklink /D .git\logs ..\actual_logs" &&
+ git rebase -f HEAD^ &&
+ test -L .git/logs &&
+ rm .git/logs &&
+ mv actual_logs .git/logs
+'
+
+test_expect_success 'rebase when inside worktree subdirectory' '
+ git init main-wt &&
+ (
+ cd main-wt &&
+ git commit --allow-empty -m "initial" &&
+ mkdir -p foo/bar &&
+ test_commit foo/bar/baz &&
+ mkdir -p a/b &&
+ test_commit a/b/c &&
+ # create another branch for our other worktree
+ git branch other &&
+ git worktree add ../other-wt other &&
+ cd ../other-wt &&
+ # create and cd into a subdirectory
+ mkdir -p random/dir &&
+ cd random/dir &&
+ # now do the rebase
+ git rebase --onto HEAD^^ HEAD^ # drops the HEAD^ commit
+ )
+'
+
+test_done