eb8dc05c3d
Since b814da8 (pull: add pull.ff configuration, 2014-01-15), running
git-pull with the configuration pull.ff=false or pull.ff=only is
equivalent to passing --no-ff and --ff-only to git-merge. However, if
pull.ff=true, no switch is passed to git-merge. This leads to the
confusing behavior where pull.ff=false or pull.ff=only is able to
override merge.ff, while pull.ff=true is unable to.
Fix this by adding the --ff switch if pull.ff=true, and add a test to
catch future regressions.
Furthermore, clarify in the documentation that pull.ff overrides
merge.ff.
Signed-off-by: Paul Tan <pyokagan@gmail.com>
Reviewed-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
186 lines
4.5 KiB
Bash
Executable File
186 lines
4.5 KiB
Bash
Executable File
#!/bin/sh
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test_description='git merge
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Testing pull.* configuration parsing.'
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. ./test-lib.sh
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test_expect_success 'setup' '
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echo c0 >c0.c &&
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git add c0.c &&
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git commit -m c0 &&
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git tag c0 &&
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echo c1 >c1.c &&
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git add c1.c &&
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git commit -m c1 &&
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git tag c1 &&
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git reset --hard c0 &&
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echo c2 >c2.c &&
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git add c2.c &&
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git commit -m c2 &&
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git tag c2 &&
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git reset --hard c0 &&
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echo c3 >c3.c &&
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git add c3.c &&
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git commit -m c3 &&
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git tag c3
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'
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test_expect_success 'merge c1 with c2' '
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git reset --hard c1 &&
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test -f c0.c &&
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test -f c1.c &&
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test ! -f c2.c &&
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test ! -f c3.c &&
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git merge c2 &&
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test -f c1.c &&
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test -f c2.c
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'
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test_expect_success 'fast-forward pull succeeds with "true" in pull.ff' '
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git reset --hard c0 &&
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test_config pull.ff true &&
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git pull . c1 &&
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test "$(git rev-parse HEAD)" = "$(git rev-parse c1)"
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'
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test_expect_success 'pull.ff=true overrides merge.ff=false' '
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git reset --hard c0 &&
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test_config merge.ff false &&
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test_config pull.ff true &&
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git pull . c1 &&
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test "$(git rev-parse HEAD)" = "$(git rev-parse c1)"
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'
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test_expect_success 'fast-forward pull creates merge with "false" in pull.ff' '
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git reset --hard c0 &&
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test_config pull.ff false &&
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git pull . c1 &&
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test "$(git rev-parse HEAD^1)" = "$(git rev-parse c0)" &&
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test "$(git rev-parse HEAD^2)" = "$(git rev-parse c1)"
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'
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test_expect_success 'pull prevents non-fast-forward with "only" in pull.ff' '
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git reset --hard c1 &&
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test_config pull.ff only &&
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test_must_fail git pull . c3
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'
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test_expect_success 'merge c1 with c2 (ours in pull.twohead)' '
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git reset --hard c1 &&
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git config pull.twohead ours &&
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git merge c2 &&
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test -f c1.c &&
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! test -f c2.c
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'
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test_expect_success 'merge c1 with c2 and c3 (recursive in pull.octopus)' '
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git reset --hard c1 &&
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git config pull.octopus "recursive" &&
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test_must_fail git merge c2 c3 &&
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test "$(git rev-parse c1)" = "$(git rev-parse HEAD)"
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'
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test_expect_success 'merge c1 with c2 and c3 (recursive and octopus in pull.octopus)' '
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git reset --hard c1 &&
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git config pull.octopus "recursive octopus" &&
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git merge c2 c3 &&
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test "$(git rev-parse c1)" != "$(git rev-parse HEAD)" &&
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test "$(git rev-parse c1)" = "$(git rev-parse HEAD^1)" &&
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test "$(git rev-parse c2)" = "$(git rev-parse HEAD^2)" &&
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test "$(git rev-parse c3)" = "$(git rev-parse HEAD^3)" &&
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git diff --exit-code &&
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test -f c0.c &&
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test -f c1.c &&
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test -f c2.c &&
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test -f c3.c
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'
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conflict_count()
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{
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{
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git diff-files --name-only
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git ls-files --unmerged
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} | wc -l
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}
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# c4 - c5
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# \ c6
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#
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# There are two conflicts here:
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#
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# 1) Because foo.c is renamed to bar.c, recursive will handle this,
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# resolve won't.
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#
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# 2) One in conflict.c and that will always fail.
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test_expect_success 'setup conflicted merge' '
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git reset --hard c0 &&
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echo A >conflict.c &&
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git add conflict.c &&
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echo contents >foo.c &&
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git add foo.c &&
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git commit -m c4 &&
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git tag c4 &&
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echo B >conflict.c &&
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git add conflict.c &&
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git mv foo.c bar.c &&
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git commit -m c5 &&
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git tag c5 &&
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git reset --hard c4 &&
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echo C >conflict.c &&
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git add conflict.c &&
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echo secondline >> foo.c &&
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git add foo.c &&
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git commit -m c6 &&
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git tag c6
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'
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# First do the merge with resolve and recursive then verify that
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# recursive is chosen.
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test_expect_success 'merge picks up the best result' '
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git config --unset-all pull.twohead &&
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git reset --hard c5 &&
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test_must_fail git merge -s resolve c6 &&
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resolve_count=$(conflict_count) &&
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git reset --hard c5 &&
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test_must_fail git merge -s recursive c6 &&
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recursive_count=$(conflict_count) &&
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git reset --hard c5 &&
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test_must_fail git merge -s recursive -s resolve c6 &&
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auto_count=$(conflict_count) &&
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test $auto_count = $recursive_count &&
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test $auto_count != $resolve_count
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'
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test_expect_success 'merge picks up the best result (from config)' '
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git config pull.twohead "recursive resolve" &&
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git reset --hard c5 &&
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test_must_fail git merge -s resolve c6 &&
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resolve_count=$(conflict_count) &&
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git reset --hard c5 &&
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test_must_fail git merge -s recursive c6 &&
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recursive_count=$(conflict_count) &&
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git reset --hard c5 &&
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test_must_fail git merge c6 &&
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auto_count=$(conflict_count) &&
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test $auto_count = $recursive_count &&
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test $auto_count != $resolve_count
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'
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test_expect_success 'merge errors out on invalid strategy' '
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git config pull.twohead "foobar" &&
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git reset --hard c5 &&
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test_must_fail git merge c6
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'
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test_expect_success 'merge errors out on invalid strategy' '
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git config --unset-all pull.twohead &&
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git reset --hard c5 &&
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test_must_fail git merge -s "resolve recursive" c6
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'
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test_done
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