436 lines
10 KiB
Bash
Executable file
436 lines
10 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2010 Johan Herland
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#
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test_description='Test notes merging at various fanout levels'
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. ./test-lib.sh
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verify_notes () {
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notes_ref="$1"
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commit="$2"
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if test -f "expect_notes_$notes_ref"
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then
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git -c core.notesRef="refs/notes/$notes_ref" notes |
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sort >"output_notes_$notes_ref" &&
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test_cmp "expect_notes_$notes_ref" "output_notes_$notes_ref" ||
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return 1
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fi &&
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git -c core.notesRef="refs/notes/$notes_ref" log --format="%H %s%n%N" \
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"$commit" >"output_log_$notes_ref" &&
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test_cmp "expect_log_$notes_ref" "output_log_$notes_ref"
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}
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verify_fanout () {
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notes_ref="$1"
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# Expect entire notes tree to have a fanout == 1
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git rev-parse --quiet --verify "refs/notes/$notes_ref" >/dev/null &&
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git ls-tree -r --name-only "refs/notes/$notes_ref" |
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while read path
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do
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case "$path" in
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??/??????????????????????????????????????)
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: true
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;;
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*)
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echo "Invalid path \"$path\"" &&
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return 1
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;;
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esac
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done
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}
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verify_no_fanout () {
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notes_ref="$1"
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# Expect entire notes tree to have a fanout == 0
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git rev-parse --quiet --verify "refs/notes/$notes_ref" >/dev/null &&
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git ls-tree -r --name-only "refs/notes/$notes_ref" |
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while read path
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do
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case "$path" in
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????????????????????????????????????????)
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: true
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;;
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*)
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echo "Invalid path \"$path\"" &&
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return 1
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;;
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esac
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done
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}
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# Set up a notes merge scenario with different kinds of conflicts
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test_expect_success 'setup a few initial commits with notes (notes ref: x)' '
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git config core.notesRef refs/notes/x &&
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for i in 1 2 3 4 5
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do
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test_commit "commit$i" >/dev/null &&
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git notes add -m "notes for commit$i" || return 1
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done
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'
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commit_sha1=$(git rev-parse commit1^{commit})
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commit_sha2=$(git rev-parse commit2^{commit})
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commit_sha3=$(git rev-parse commit3^{commit})
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commit_sha4=$(git rev-parse commit4^{commit})
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commit_sha5=$(git rev-parse commit5^{commit})
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cat <<EOF | sort >expect_notes_x
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aed91155c7a72c2188e781fdf40e0f3761b299db $commit_sha5
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99fab268f9d7ee7b011e091a436c78def8eeee69 $commit_sha4
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953c20ae26c7aa0b428c20693fe38bc687f9d1a9 $commit_sha3
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6358796131b8916eaa2dde6902642942a1cb37e1 $commit_sha2
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b02d459c32f0e68f2fe0981033bb34f38776ba47 $commit_sha1
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EOF
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cat >expect_log_x <<EOF
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$commit_sha5 commit5
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notes for commit5
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$commit_sha4 commit4
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notes for commit4
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$commit_sha3 commit3
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notes for commit3
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$commit_sha2 commit2
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notes for commit2
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$commit_sha1 commit1
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notes for commit1
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EOF
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test_expect_success 'sanity check (x)' '
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verify_notes x commit5 &&
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verify_no_fanout x
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'
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num=300
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cp expect_log_x expect_log_y
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test_expect_success 'Add a few hundred commits w/notes to trigger fanout (x -> y)' '
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git update-ref refs/notes/y refs/notes/x &&
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git config core.notesRef refs/notes/y &&
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test_commit_bulk --start=6 --id=commit $((num - 5)) &&
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i=0 &&
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while test $i -lt $((num - 5))
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do
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git notes add -m "notes for commit$i" HEAD~$i || return 1
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i=$((i + 1))
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done &&
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test "$(git rev-parse refs/notes/y)" != "$(git rev-parse refs/notes/x)" &&
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# Expected number of commits and notes
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test $(git rev-list HEAD | wc -l) = $num &&
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test $(git notes list | wc -l) = $num &&
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# 5 first notes unchanged
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verify_notes y commit5
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'
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test_expect_success 'notes tree has fanout (y)' 'verify_fanout y'
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test_expect_success 'No-op merge (already included) (x => y)' '
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git update-ref refs/notes/m refs/notes/y &&
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git config core.notesRef refs/notes/m &&
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git notes merge x &&
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test "$(git rev-parse refs/notes/m)" = "$(git rev-parse refs/notes/y)"
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'
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test_expect_success 'Fast-forward merge (y => x)' '
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git update-ref refs/notes/m refs/notes/x &&
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git notes merge y &&
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test "$(git rev-parse refs/notes/m)" = "$(git rev-parse refs/notes/y)"
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'
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cat <<EOF | sort >expect_notes_z
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9f506ee70e20379d7f78204c77b334f43d77410d $commit_sha3
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23a47d6ea7d589895faf800752054818e1e7627b $commit_sha2
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b02d459c32f0e68f2fe0981033bb34f38776ba47 $commit_sha1
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EOF
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cat >expect_log_z <<EOF
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$commit_sha5 commit5
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$commit_sha4 commit4
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$commit_sha3 commit3
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notes for commit3
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appended notes for commit3
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$commit_sha2 commit2
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new notes for commit2
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$commit_sha1 commit1
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notes for commit1
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EOF
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test_expect_success 'change some of the initial 5 notes (x -> z)' '
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git update-ref refs/notes/z refs/notes/x &&
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git config core.notesRef refs/notes/z &&
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git notes add -f -m "new notes for commit2" commit2 &&
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git notes append -m "appended notes for commit3" commit3 &&
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git notes remove commit4 &&
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git notes remove commit5 &&
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verify_notes z commit5
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'
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test_expect_success 'notes tree has no fanout (z)' 'verify_no_fanout z'
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cp expect_log_z expect_log_m
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test_expect_success 'successful merge without conflicts (y => z)' '
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git update-ref refs/notes/m refs/notes/z &&
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git config core.notesRef refs/notes/m &&
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git notes merge y &&
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verify_notes m commit5 &&
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# x/y/z unchanged
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verify_notes x commit5 &&
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verify_notes y commit5 &&
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verify_notes z commit5
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'
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test_expect_success 'notes tree still has fanout after merge (m)' 'verify_fanout m'
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cat >expect_log_w <<EOF
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$commit_sha5 commit5
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$commit_sha4 commit4
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other notes for commit4
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$commit_sha3 commit3
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other notes for commit3
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$commit_sha2 commit2
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notes for commit2
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$commit_sha1 commit1
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other notes for commit1
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EOF
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test_expect_success 'introduce conflicting changes (y -> w)' '
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git update-ref refs/notes/w refs/notes/y &&
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git config core.notesRef refs/notes/w &&
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git notes add -f -m "other notes for commit1" commit1 &&
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git notes add -f -m "other notes for commit3" commit3 &&
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git notes add -f -m "other notes for commit4" commit4 &&
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git notes remove commit5 &&
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verify_notes w commit5
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'
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cat >expect_log_m <<EOF
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$commit_sha5 commit5
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$commit_sha4 commit4
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other notes for commit4
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$commit_sha3 commit3
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other notes for commit3
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$commit_sha2 commit2
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new notes for commit2
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$commit_sha1 commit1
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other notes for commit1
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EOF
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test_expect_success 'successful merge using "ours" strategy (z => w)' '
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git update-ref refs/notes/m refs/notes/w &&
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git config core.notesRef refs/notes/m &&
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git notes merge -s ours z &&
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verify_notes m commit5 &&
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# w/x/y/z unchanged
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verify_notes w commit5 &&
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verify_notes x commit5 &&
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verify_notes y commit5 &&
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verify_notes z commit5
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'
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test_expect_success 'notes tree still has fanout after merge (m)' 'verify_fanout m'
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cat >expect_log_m <<EOF
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$commit_sha5 commit5
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$commit_sha4 commit4
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$commit_sha3 commit3
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notes for commit3
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appended notes for commit3
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$commit_sha2 commit2
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new notes for commit2
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$commit_sha1 commit1
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other notes for commit1
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EOF
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test_expect_success 'successful merge using "theirs" strategy (z => w)' '
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git update-ref refs/notes/m refs/notes/w &&
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git notes merge -s theirs z &&
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verify_notes m commit5 &&
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# w/x/y/z unchanged
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verify_notes w commit5 &&
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verify_notes x commit5 &&
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verify_notes y commit5 &&
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verify_notes z commit5
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'
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test_expect_success 'notes tree still has fanout after merge (m)' 'verify_fanout m'
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cat >expect_log_m <<EOF
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$commit_sha5 commit5
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$commit_sha4 commit4
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other notes for commit4
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$commit_sha3 commit3
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other notes for commit3
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notes for commit3
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appended notes for commit3
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$commit_sha2 commit2
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new notes for commit2
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$commit_sha1 commit1
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other notes for commit1
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EOF
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test_expect_success 'successful merge using "union" strategy (z => w)' '
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git update-ref refs/notes/m refs/notes/w &&
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git notes merge -s union z &&
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verify_notes m commit5 &&
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# w/x/y/z unchanged
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verify_notes w commit5 &&
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verify_notes x commit5 &&
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verify_notes y commit5 &&
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verify_notes z commit5
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'
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test_expect_success 'notes tree still has fanout after merge (m)' 'verify_fanout m'
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cat >expect_log_m <<EOF
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$commit_sha5 commit5
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$commit_sha4 commit4
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other notes for commit4
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$commit_sha3 commit3
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appended notes for commit3
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notes for commit3
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other notes for commit3
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$commit_sha2 commit2
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new notes for commit2
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$commit_sha1 commit1
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other notes for commit1
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EOF
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test_expect_success 'successful merge using "cat_sort_uniq" strategy (z => w)' '
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git update-ref refs/notes/m refs/notes/w &&
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git notes merge -s cat_sort_uniq z &&
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verify_notes m commit5 &&
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# w/x/y/z unchanged
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verify_notes w commit5 &&
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verify_notes x commit5 &&
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verify_notes y commit5 &&
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verify_notes z commit5
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'
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test_expect_success 'notes tree still has fanout after merge (m)' 'verify_fanout m'
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# We're merging z into w. Here are the conflicts we expect:
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#
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# commit | x -> w | x -> z | conflict?
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# -------|-----------|-----------|----------
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# 1 | changed | unchanged | no, use w
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# 2 | unchanged | changed | no, use z
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# 3 | changed | changed | yes (w, then z in conflict markers)
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# 4 | changed | deleted | yes (w)
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# 5 | deleted | deleted | no, deleted
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test_expect_success 'fails to merge using "manual" strategy (z => w)' '
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git update-ref refs/notes/m refs/notes/w &&
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test_must_fail git notes merge z
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'
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test_expect_success 'notes tree still has fanout after merge (m)' 'verify_fanout m'
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cat <<EOF | sort >expect_conflicts
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$commit_sha3
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$commit_sha4
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EOF
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cat >expect_conflict_$commit_sha3 <<EOF
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<<<<<<< refs/notes/m
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other notes for commit3
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=======
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notes for commit3
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appended notes for commit3
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>>>>>>> refs/notes/z
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EOF
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cat >expect_conflict_$commit_sha4 <<EOF
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other notes for commit4
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EOF
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test_expect_success 'verify conflict entries (with no fanout)' '
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ls .git/NOTES_MERGE_WORKTREE >output_conflicts &&
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test_cmp expect_conflicts output_conflicts &&
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( for f in $(cat expect_conflicts); do
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test_cmp "expect_conflict_$f" ".git/NOTES_MERGE_WORKTREE/$f" ||
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exit 1
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done ) &&
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# Verify that current notes tree (pre-merge) has not changed (m == w)
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test "$(git rev-parse refs/notes/m)" = "$(git rev-parse refs/notes/w)"
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'
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cat >expect_log_m <<EOF
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$commit_sha5 commit5
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$commit_sha4 commit4
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other notes for commit4
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$commit_sha3 commit3
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other notes for commit3
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appended notes for commit3
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$commit_sha2 commit2
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new notes for commit2
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$commit_sha1 commit1
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other notes for commit1
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EOF
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test_expect_success 'resolve and finalize merge (z => w)' '
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cat >.git/NOTES_MERGE_WORKTREE/$commit_sha3 <<EOF &&
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other notes for commit3
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appended notes for commit3
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EOF
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git notes merge --commit &&
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verify_notes m commit5 &&
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# w/x/y/z unchanged
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verify_notes w commit5 &&
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verify_notes x commit5 &&
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verify_notes y commit5 &&
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verify_notes z commit5
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'
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test_expect_success 'notes tree still has fanout after merge (m)' 'verify_fanout m'
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test_done
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