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#!/bin/sh
test_description='git merge
Testing pull.* configuration parsing.'
. ./test-lib.sh
test_expect_success 'setup' '
echo c0 >c0.c &&
git add c0.c &&
git commit -m c0 &&
git tag c0 &&
echo c1 >c1.c &&
git add c1.c &&
git commit -m c1 &&
git tag c1 &&
git reset --hard c0 &&
echo c2 >c2.c &&
git add c2.c &&
git commit -m c2 &&
git tag c2 &&
git reset --hard c0 &&
echo c3 >c3.c &&
git add c3.c &&
git commit -m c3 &&
git tag c3
'
test_expect_success 'merge c1 with c2' '
git reset --hard c1 &&
test -f c0.c &&
test -f c1.c &&
test ! -f c2.c &&
test ! -f c3.c &&
git merge c2 &&
test -f c1.c &&
test -f c2.c
'
test_expect_success 'fast-forward pull succeeds with "true" in pull.ff' '
git reset --hard c0 &&
test_config pull.ff true &&
git pull . c1 &&
test "$(git rev-parse HEAD)" = "$(git rev-parse c1)"
'
test_expect_success 'pull.ff=true overrides merge.ff=false' '
git reset --hard c0 &&
test_config merge.ff false &&
test_config pull.ff true &&
git pull . c1 &&
test "$(git rev-parse HEAD)" = "$(git rev-parse c1)"
'
test_expect_success 'fast-forward pull creates merge with "false" in pull.ff' '
git reset --hard c0 &&
test_config pull.ff false &&
git pull . c1 &&
test "$(git rev-parse HEAD^1)" = "$(git rev-parse c0)" &&
test "$(git rev-parse HEAD^2)" = "$(git rev-parse c1)"
'
test_expect_success 'pull prevents non-fast-forward with "only" in pull.ff' '
git reset --hard c1 &&
test_config pull.ff only &&
test_must_fail git pull . c3
'
test_expect_success 'merge c1 with c2 (ours in pull.twohead)' '
git reset --hard c1 &&
git config pull.twohead ours &&
git merge c2 &&
test -f c1.c &&
! test -f c2.c
'
test_expect_success 'merge c1 with c2 and c3 (recursive in pull.octopus)' '
git reset --hard c1 &&
git config pull.octopus "recursive" &&
test_must_fail git merge c2 c3 &&
test "$(git rev-parse c1)" = "$(git rev-parse HEAD)"
'
test_expect_success 'merge c1 with c2 and c3 (recursive and octopus in pull.octopus)' '
git reset --hard c1 &&
git config pull.octopus "recursive octopus" &&
git merge c2 c3 &&
test "$(git rev-parse c1)" != "$(git rev-parse HEAD)" &&
test "$(git rev-parse c1)" = "$(git rev-parse HEAD^1)" &&
test "$(git rev-parse c2)" = "$(git rev-parse HEAD^2)" &&
test "$(git rev-parse c3)" = "$(git rev-parse HEAD^3)" &&
git diff --exit-code &&
test -f c0.c &&
test -f c1.c &&
test -f c2.c &&
test -f c3.c
'
conflict_count()
{
{
git diff-files --name-only
git ls-files --unmerged
} | wc -l
}
# c4 - c5
# \ c6
#
# There are two conflicts here:
#
# 1) Because foo.c is renamed to bar.c, recursive will handle this,
# resolve won't.
#
# 2) One in conflict.c and that will always fail.
test_expect_success 'setup conflicted merge' '
git reset --hard c0 &&
echo A >conflict.c &&
git add conflict.c &&
echo contents >foo.c &&
git add foo.c &&
git commit -m c4 &&
git tag c4 &&
echo B >conflict.c &&
git add conflict.c &&
git mv foo.c bar.c &&
git commit -m c5 &&
git tag c5 &&
git reset --hard c4 &&
echo C >conflict.c &&
git add conflict.c &&
echo secondline >> foo.c &&
git add foo.c &&
git commit -m c6 &&
git tag c6
'
# First do the merge with resolve and recursive then verify that
# recursive is chosen.
test_expect_success 'merge picks up the best result' '
git config --unset-all pull.twohead &&
git reset --hard c5 &&
test_must_fail git merge -s resolve c6 &&
resolve_count=$(conflict_count) &&
git reset --hard c5 &&
test_must_fail git merge -s recursive c6 &&
recursive_count=$(conflict_count) &&
git reset --hard c5 &&
test_must_fail git merge -s recursive -s resolve c6 &&
auto_count=$(conflict_count) &&
test $auto_count = $recursive_count &&
test $auto_count != $resolve_count
'
test_expect_success 'merge picks up the best result (from config)' '
git config pull.twohead "recursive resolve" &&
git reset --hard c5 &&
test_must_fail git merge -s resolve c6 &&
resolve_count=$(conflict_count) &&
git reset --hard c5 &&
test_must_fail git merge -s recursive c6 &&
recursive_count=$(conflict_count) &&
git reset --hard c5 &&
test_must_fail git merge c6 &&
auto_count=$(conflict_count) &&
test $auto_count = $recursive_count &&
test $auto_count != $resolve_count
'
test_expect_success 'merge errors out on invalid strategy' '
git config pull.twohead "foobar" &&
git reset --hard c5 &&
test_must_fail git merge c6
'
test_expect_success 'merge errors out on invalid strategy' '
git config --unset-all pull.twohead &&
git reset --hard c5 &&
test_must_fail git merge -s "resolve recursive" c6
'
test_done