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812d2a3d61
The use case for --keep option is to remove previous commits unrelated
to the current changes in the working tree. So in this use case we are
not supposed to have unmerged entries. This is why it seems safer to
just disallow using --keep when there are unmerged entries.
And this patch changes the error message when --keep was disallowed and
there were some unmerged entries from:
error: Entry 'file1' would be overwritten by merge. Cannot merge.
fatal: Could not reset index file to revision 'HEAD^'.
to:
fatal: Cannot do a keep reset in the middle of a merge.
which is nicer.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
296 lines
9.7 KiB
Bash
Executable file
296 lines
9.7 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2009 Christian Couder
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#
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test_description='Tests for "git reset" with "--merge" and "--keep" options'
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. ./test-lib.sh
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test_expect_success setup '
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for i in 1 2 3; do echo line $i; done >file1 &&
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cat file1 >file2 &&
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git add file1 file2 &&
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test_tick &&
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git commit -m "Initial commit" &&
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git tag initial &&
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echo line 4 >>file1 &&
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cat file1 >file2 &&
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test_tick &&
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git commit -m "add line 4 to file1" file1 &&
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git tag second
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'
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# The next test will test the following:
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#
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# working index HEAD target working index HEAD
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# ----------------------------------------------------
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# file1: C C C D --merge D D D
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# file2: C D D D --merge C D D
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test_expect_success 'reset --merge is ok with changes in file it does not touch' '
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git reset --merge HEAD^ &&
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! grep 4 file1 &&
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grep 4 file2 &&
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test "$(git rev-parse HEAD)" = "$(git rev-parse initial)" &&
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test -z "$(git diff --cached)"
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'
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test_expect_success 'reset --merge is ok when switching back' '
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git reset --merge second &&
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grep 4 file1 &&
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grep 4 file2 &&
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test "$(git rev-parse HEAD)" = "$(git rev-parse second)" &&
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test -z "$(git diff --cached)"
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'
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# The next test will test the following:
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#
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# working index HEAD target working index HEAD
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# ----------------------------------------------------
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# file1: C C C D --keep D D D
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# file2: C D D D --keep C D D
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test_expect_success 'reset --keep is ok with changes in file it does not touch' '
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git reset --hard second &&
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cat file1 >file2 &&
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git reset --keep HEAD^ &&
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! grep 4 file1 &&
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grep 4 file2 &&
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test "$(git rev-parse HEAD)" = "$(git rev-parse initial)" &&
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test -z "$(git diff --cached)"
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'
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test_expect_success 'reset --keep is ok when switching back' '
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git reset --keep second &&
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grep 4 file1 &&
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grep 4 file2 &&
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test "$(git rev-parse HEAD)" = "$(git rev-parse second)" &&
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test -z "$(git diff --cached)"
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'
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# The next test will test the following:
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#
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# working index HEAD target working index HEAD
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# ----------------------------------------------------
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# file1: B B C D --merge D D D
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# file2: C D D D --merge C D D
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test_expect_success 'reset --merge discards changes added to index (1)' '
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git reset --hard second &&
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cat file1 >file2 &&
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echo "line 5" >> file1 &&
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git add file1 &&
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git reset --merge HEAD^ &&
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! grep 4 file1 &&
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! grep 5 file1 &&
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grep 4 file2 &&
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test "$(git rev-parse HEAD)" = "$(git rev-parse initial)" &&
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test -z "$(git diff --cached)"
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'
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test_expect_success 'reset --merge is ok again when switching back (1)' '
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git reset --hard initial &&
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echo "line 5" >> file2 &&
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git add file2 &&
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git reset --merge second &&
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! grep 4 file2 &&
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! grep 5 file1 &&
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grep 4 file1 &&
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test "$(git rev-parse HEAD)" = "$(git rev-parse second)" &&
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test -z "$(git diff --cached)"
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'
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# The next test will test the following:
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#
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# working index HEAD target working index HEAD
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# ----------------------------------------------------
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# file1: B B C D --keep (disallowed)
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test_expect_success 'reset --keep fails with changes in index in files it touches' '
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git reset --hard second &&
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echo "line 5" >> file1 &&
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git add file1 &&
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test_must_fail git reset --keep HEAD^
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'
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# The next test will test the following:
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#
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# working index HEAD target working index HEAD
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# ----------------------------------------------------
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# file1: C C C D --merge D D D
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# file2: C C D D --merge D D D
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test_expect_success 'reset --merge discards changes added to index (2)' '
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git reset --hard second &&
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echo "line 4" >> file2 &&
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git add file2 &&
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git reset --merge HEAD^ &&
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! grep 4 file2 &&
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test "$(git rev-parse HEAD)" = "$(git rev-parse initial)" &&
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test -z "$(git diff)" &&
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test -z "$(git diff --cached)"
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'
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test_expect_success 'reset --merge is ok again when switching back (2)' '
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git reset --hard initial &&
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git reset --merge second &&
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! grep 4 file2 &&
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grep 4 file1 &&
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test "$(git rev-parse HEAD)" = "$(git rev-parse second)" &&
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test -z "$(git diff --cached)"
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'
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# The next test will test the following:
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#
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# working index HEAD target working index HEAD
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# ----------------------------------------------------
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# file1: C C C D --keep D D D
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# file2: C C D D --keep C D D
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test_expect_success 'reset --keep keeps changes it does not touch' '
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git reset --hard second &&
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echo "line 4" >> file2 &&
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git add file2 &&
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git reset --keep HEAD^ &&
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grep 4 file2 &&
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test "$(git rev-parse HEAD)" = "$(git rev-parse initial)" &&
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test -z "$(git diff --cached)"
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'
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test_expect_success 'reset --keep keeps changes when switching back' '
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git reset --keep second &&
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grep 4 file2 &&
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grep 4 file1 &&
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test "$(git rev-parse HEAD)" = "$(git rev-parse second)" &&
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test -z "$(git diff --cached)"
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'
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# The next test will test the following:
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#
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# working index HEAD target working index HEAD
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# ----------------------------------------------------
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# file1: A B B C --merge (disallowed)
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test_expect_success 'reset --merge fails with changes in file it touches' '
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git reset --hard second &&
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echo "line 5" >> file1 &&
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test_tick &&
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git commit -m "add line 5" file1 &&
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sed -e "s/line 1/changed line 1/" <file1 >file3 &&
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mv file3 file1 &&
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test_must_fail git reset --merge HEAD^ 2>err.log &&
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grep file1 err.log | grep "not uptodate"
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'
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# The next test will test the following:
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#
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# working index HEAD target working index HEAD
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# ----------------------------------------------------
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# file1: A B B C --keep (disallowed)
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test_expect_success 'reset --keep fails with changes in file it touches' '
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git reset --hard second &&
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echo "line 5" >> file1 &&
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test_tick &&
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git commit -m "add line 5" file1 &&
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sed -e "s/line 1/changed line 1/" <file1 >file3 &&
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mv file3 file1 &&
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test_must_fail git reset --keep HEAD^ 2>err.log &&
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grep file1 err.log | grep "not uptodate"
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'
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test_expect_success 'setup 3 different branches' '
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git reset --hard second &&
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git branch branch1 &&
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git branch branch2 &&
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git branch branch3 &&
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git checkout branch1 &&
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echo "line 5 in branch1" >> file1 &&
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test_tick &&
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git commit -a -m "change in branch1" &&
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git checkout branch2 &&
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echo "line 5 in branch2" >> file1 &&
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test_tick &&
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git commit -a -m "change in branch2" &&
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git tag third &&
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git checkout branch3 &&
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echo a new file >file3 &&
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rm -f file1 &&
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git add file3 &&
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test_tick &&
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git commit -a -m "change in branch3"
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'
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# The next test will test the following:
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#
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# working index HEAD target working index HEAD
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# ----------------------------------------------------
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# file1: X U B C --merge C C C
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test_expect_success '"reset --merge HEAD^" is ok with pending merge' '
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git checkout third &&
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test_must_fail git merge branch1 &&
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git reset --merge HEAD^ &&
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test "$(git rev-parse HEAD)" = "$(git rev-parse second)" &&
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test -z "$(git diff --cached)" &&
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test -z "$(git diff)"
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'
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# The next test will test the following:
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#
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# working index HEAD target working index HEAD
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# ----------------------------------------------------
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# file1: X U B C --keep (disallowed)
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test_expect_success '"reset --keep HEAD^" fails with pending merge' '
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git reset --hard third &&
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test_must_fail git merge branch1 &&
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test_must_fail git reset --keep HEAD^ 2>err.log &&
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grep "middle of a merge" err.log
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'
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# The next test will test the following:
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#
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# working index HEAD target working index HEAD
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# ----------------------------------------------------
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# file1: X U B B --merge B B B
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test_expect_success '"reset --merge HEAD" is ok with pending merge' '
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git reset --hard third &&
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test_must_fail git merge branch1 &&
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git reset --merge HEAD &&
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test "$(git rev-parse HEAD)" = "$(git rev-parse third)" &&
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test -z "$(git diff --cached)" &&
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test -z "$(git diff)"
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'
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# The next test will test the following:
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#
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# working index HEAD target working index HEAD
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# ----------------------------------------------------
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# file1: X U B B --keep (disallowed)
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test_expect_success '"reset --keep HEAD" fails with pending merge' '
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git reset --hard third &&
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test_must_fail git merge branch1 &&
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test_must_fail git reset --keep HEAD 2>err.log &&
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grep "middle of a merge" err.log
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'
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test_expect_success '--merge is ok with added/deleted merge' '
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git reset --hard third &&
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rm -f file2 &&
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test_must_fail git merge branch3 &&
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! test -f file2 &&
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test -f file3 &&
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git diff --exit-code file3 &&
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git diff --exit-code branch3 file3 &&
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git reset --merge HEAD &&
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! test -f file3 &&
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! test -f file2 &&
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git diff --exit-code --cached
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'
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test_expect_success '--keep fails with added/deleted merge' '
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git reset --hard third &&
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rm -f file2 &&
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test_must_fail git merge branch3 &&
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! test -f file2 &&
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test -f file3 &&
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git diff --exit-code file3 &&
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git diff --exit-code branch3 file3 &&
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test_must_fail git reset --keep HEAD 2>err.log &&
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grep "middle of a merge" err.log
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'
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test_done
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