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When writing conflict hunks in ‘diff3 -m’ format, also add a label to the common ancestor. Especially in a cherry-pick, it is not immediately obvious without such a label what the common ancestor represents. git rerere does not have trouble parsing the new output and its preimage ids are unchanged since it includes its own code for recreating conflict hunks. No other code in git parses conflict hunks. Requested-by: Stefan Monnier <monnier@iro.umontreal.ca> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
199 lines
4.2 KiB
Bash
199 lines
4.2 KiB
Bash
#!/bin/sh
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test_description='test cherry-pick and revert with conflicts
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-
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+ picked: rewrites foo to c
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+ base: rewrites foo to b
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+ initial: writes foo as a, unrelated as unrelated
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'
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. ./test-lib.sh
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test_expect_success setup '
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echo unrelated >unrelated &&
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git add unrelated &&
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test_commit initial foo a &&
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test_commit base foo b &&
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test_commit picked foo c &&
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git config advice.detachedhead false
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'
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test_expect_success 'failed cherry-pick does not advance HEAD' '
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git checkout -f initial^0 &&
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git read-tree -u --reset HEAD &&
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git clean -d -f -f -q -x &&
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git update-index --refresh &&
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git diff-index --exit-code HEAD &&
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head=$(git rev-parse HEAD) &&
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test_must_fail git cherry-pick picked &&
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newhead=$(git rev-parse HEAD) &&
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test "$head" = "$newhead"
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'
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test_expect_success 'failed cherry-pick produces dirty index' '
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git checkout -f initial^0 &&
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git read-tree -u --reset HEAD &&
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git clean -d -f -f -q -x &&
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git update-index --refresh &&
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git diff-index --exit-code HEAD &&
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test_must_fail git cherry-pick picked &&
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test_must_fail git update-index --refresh -q &&
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test_must_fail git diff-index --exit-code HEAD
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'
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test_expect_success 'failed cherry-pick registers participants in index' '
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git read-tree -u --reset HEAD &&
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git clean -d -f -f -q -x &&
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{
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git checkout base -- foo &&
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git ls-files --stage foo &&
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git checkout initial -- foo &&
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git ls-files --stage foo &&
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git checkout picked -- foo &&
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git ls-files --stage foo
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} > stages &&
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sed "
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1 s/ 0 / 1 /
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2 s/ 0 / 2 /
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3 s/ 0 / 3 /
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" < stages > expected &&
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git checkout -f initial^0 &&
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git update-index --refresh &&
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git diff-index --exit-code HEAD &&
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test_must_fail git cherry-pick picked &&
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git ls-files --stage --unmerged > actual &&
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test_cmp expected actual
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'
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test_expect_success 'failed cherry-pick describes conflict in work tree' '
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git checkout -f initial^0 &&
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git read-tree -u --reset HEAD &&
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git clean -d -f -f -q -x &&
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cat <<-EOF > expected &&
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<<<<<<< HEAD
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a
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=======
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c
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>>>>>>> objid picked
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EOF
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git update-index --refresh &&
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git diff-index --exit-code HEAD &&
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test_must_fail git cherry-pick picked &&
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sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
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test_cmp expected actual
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'
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test_expect_success 'diff3 -m style' '
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git config merge.conflictstyle diff3 &&
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git checkout -f initial^0 &&
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git read-tree -u --reset HEAD &&
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git clean -d -f -f -q -x &&
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cat <<-EOF > expected &&
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<<<<<<< HEAD
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a
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||||||| parent of objid picked
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b
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=======
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c
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>>>>>>> objid picked
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EOF
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git update-index --refresh &&
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git diff-index --exit-code HEAD &&
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test_must_fail git cherry-pick picked &&
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sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
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test_cmp expected actual
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'
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test_expect_success 'revert also handles conflicts sanely' '
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git config --unset merge.conflictstyle &&
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git read-tree -u --reset HEAD &&
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git clean -d -f -f -q -x &&
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cat <<-EOF > expected &&
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<<<<<<< HEAD
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a
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=======
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b
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>>>>>>> parent of objid picked
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EOF
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{
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git checkout picked -- foo &&
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git ls-files --stage foo &&
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git checkout initial -- foo &&
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git ls-files --stage foo &&
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git checkout base -- foo &&
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git ls-files --stage foo
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} > stages &&
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sed "
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1 s/ 0 / 1 /
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2 s/ 0 / 2 /
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3 s/ 0 / 3 /
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" < stages > expected-stages &&
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git checkout -f initial^0 &&
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git update-index --refresh &&
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git diff-index --exit-code HEAD &&
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head=$(git rev-parse HEAD) &&
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test_must_fail git revert picked &&
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newhead=$(git rev-parse HEAD) &&
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git ls-files --stage --unmerged > actual-stages &&
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test "$head" = "$newhead" &&
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test_must_fail git update-index --refresh -q &&
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test_must_fail git diff-index --exit-code HEAD &&
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test_cmp expected-stages actual-stages &&
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sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
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test_cmp expected actual
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'
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test_expect_success 'revert conflict, diff3 -m style' '
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git config merge.conflictstyle diff3 &&
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git checkout -f initial^0 &&
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git read-tree -u --reset HEAD &&
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git clean -d -f -f -q -x &&
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cat <<-EOF > expected &&
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<<<<<<< HEAD
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a
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||||||| objid picked
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c
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=======
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b
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>>>>>>> parent of objid picked
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EOF
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git update-index --refresh &&
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git diff-index --exit-code HEAD &&
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test_must_fail git revert picked &&
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sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
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test_cmp expected actual
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'
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test_done
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