tvl-depot/third_party/git/t/t3310-notes-merge-manual-resolve.sh
Vincent Ambo f4609b896f merge(3p/git): Merge git subtree at v2.29.2
This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because
there is some breakage in the git build related to the netrc
credentials helper which someone has taken care of in nixpkgs.

The stable channel is not used for anything other than git, so this
should be fine.

Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb
2020-11-21 19:45:56 +01:00

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#!/bin/sh
#
# Copyright (c) 2010 Johan Herland
#
test_description='Test notes merging with manual conflict resolution'
. ./test-lib.sh
# Set up a notes merge scenario with different kinds of conflicts
test_expect_success 'setup commits' '
test_commit 1st &&
test_commit 2nd &&
test_commit 3rd &&
test_commit 4th &&
test_commit 5th &&
test_oid_cache <<-EOF
hash04a sha1:6e8e3febca3c2bb896704335cc4d0c34cb2f8715
hash03a sha1:e5388c10860456ee60673025345fe2e153eb8cf8
hash02a sha1:ceefa674873670e7ecd131814d909723cce2b669
hash04b sha1:e2bfd06a37dd2031684a59a6e2b033e212239c78
hash03b sha1:5772f42408c0dd6f097a7ca2d24de0e78d1c46b1
hash01b sha1:b0a6021ec006d07e80e9b20ec9b444cbd9d560d3
hash04c sha1:cff59c793c20bb49a4e01bc06fb06bad642e0d54
hash02c sha1:283b48219aee9a4105f6cab337e789065c82c2b9
hash01c sha1:0a81da8956346e19bcb27a906f04af327e03e31b
hash04d sha1:00494adecf2d9635a02fa431308d67993f853968
hash01e sha1:f75d1df88cbfe4258d49852f26cfc83f2ad4494b
hash04f sha1:021faa20e931fb48986ffc6282b4bb05553ac946
hash01f sha1:0a59e787e6d688aa6309e56e8c1b89431a0fc1c1
hash05g sha1:304dfb4325cf243025b9957486eb605a9b51c199
hash04a sha256:f18a935e65866345098b3b754071dbf9f3aa3520eb27a7b036b278c5e2f1ed7e
hash03a sha256:713035dc94067a64e5fa6e4e1821b7c3bde49a77c7cb3f80eaadefa1ca41b3d2
hash02a sha256:f160a67e048b6fa75bec3952184154045076692cf5dccd3da21e3fd34b7a3f0f
hash04b sha256:c7fba0d6104917fbf35258f40b9fa4fc697cfa992deecd1570a3b08d0a5587a9
hash03b sha256:7287a2d78a3766c181b08df38951d784b08b72a44f571ed6d855bd0be22c70f6
hash01b sha256:da96cf778c15d0a2bb76f98b2a62f6c9c01730fa7030e8f08ef0191048e7d620
hash04c sha256:cb615d2def4b834d5f55b2351df97dc92bee4f5009d285201427f349081c8aca
hash02c sha256:63bb527e0b4e1c8e1dd0d54dd778ca7c3718689fd6e37c473044cfbcf1cacfdb
hash01c sha256:5b87237ac1fbae0246256fed9f9a1f077c4140fb7e6444925f8dbfa5ae406cd8
hash04d sha256:eeddc9f9f6cb3d6b39b861659853f10891dc373e0b6eecb09e03e39b6ce64714
hash01e sha256:108f521b1a74c2e6d0b52a4eda87e09162bf847f7d190cfce496ee1af0b29a5a
hash04f sha256:901acda0454502b3bbd281f130c419e6c8de78afcf72a8def8d45ad31462bce4
hash01f sha256:a2d99d1b8bf23c8af7d9d91368454adc110dfd5cc068a4cebb486ee8f5a1e16c
hash05g sha256:4fef015b01da8efe929a68e3bb9b8fbad81f53995f097befe8ebc93f12ab98ec
EOF
'
commit_sha1=$(git rev-parse 1st^{commit})
commit_sha2=$(git rev-parse 2nd^{commit})
commit_sha3=$(git rev-parse 3rd^{commit})
commit_sha4=$(git rev-parse 4th^{commit})
commit_sha5=$(git rev-parse 5th^{commit})
verify_notes () {
notes_ref="$1"
git -c core.notesRef="refs/notes/$notes_ref" notes |
sort >"output_notes_$notes_ref" &&
test_cmp "expect_notes_$notes_ref" "output_notes_$notes_ref" &&
git -c core.notesRef="refs/notes/$notes_ref" log --format="%H %s%n%N" \
>"output_log_$notes_ref" &&
test_cmp "expect_log_$notes_ref" "output_log_$notes_ref"
}
notes_merge_files_gone () {
# No .git/NOTES_MERGE_* files left
{ ls .git/NOTES_MERGE_* >output || :; } &&
test_must_be_empty output
}
cat <<EOF | sort >expect_notes_x
$(test_oid hash04a) $commit_sha4
$(test_oid hash03a) $commit_sha3
$(test_oid hash02a) $commit_sha2
EOF
cat >expect_log_x <<EOF
$commit_sha5 5th
$commit_sha4 4th
x notes on 4th commit
$commit_sha3 3rd
x notes on 3rd commit
$commit_sha2 2nd
x notes on 2nd commit
$commit_sha1 1st
EOF
test_expect_success 'setup merge base (x)' '
git config core.notesRef refs/notes/x &&
git notes add -m "x notes on 2nd commit" 2nd &&
git notes add -m "x notes on 3rd commit" 3rd &&
git notes add -m "x notes on 4th commit" 4th &&
verify_notes x
'
cat <<EOF | sort >expect_notes_y
$(test_oid hash04b) $commit_sha4
$(test_oid hash03b) $commit_sha3
$(test_oid hash01b) $commit_sha1
EOF
cat >expect_log_y <<EOF
$commit_sha5 5th
$commit_sha4 4th
y notes on 4th commit
$commit_sha3 3rd
y notes on 3rd commit
$commit_sha2 2nd
$commit_sha1 1st
y notes on 1st commit
EOF
test_expect_success 'setup local branch (y)' '
git update-ref refs/notes/y refs/notes/x &&
git config core.notesRef refs/notes/y &&
git notes add -f -m "y notes on 1st commit" 1st &&
git notes remove 2nd &&
git notes add -f -m "y notes on 3rd commit" 3rd &&
git notes add -f -m "y notes on 4th commit" 4th &&
verify_notes y
'
cat <<EOF | sort >expect_notes_z
$(test_oid hash04c) $commit_sha4
$(test_oid hash02c) $commit_sha2
$(test_oid hash01c) $commit_sha1
EOF
cat >expect_log_z <<EOF
$commit_sha5 5th
$commit_sha4 4th
z notes on 4th commit
$commit_sha3 3rd
$commit_sha2 2nd
z notes on 2nd commit
$commit_sha1 1st
z notes on 1st commit
EOF
test_expect_success 'setup remote branch (z)' '
git update-ref refs/notes/z refs/notes/x &&
git config core.notesRef refs/notes/z &&
git notes add -f -m "z notes on 1st commit" 1st &&
git notes add -f -m "z notes on 2nd commit" 2nd &&
git notes remove 3rd &&
git notes add -f -m "z notes on 4th commit" 4th &&
verify_notes z
'
# At this point, before merging z into y, we have the following status:
#
# commit | base/x | local/y | remote/z | diff from x to y/z
# -------|---------|---------|----------|---------------------------
# 1st | [none] | b0a6021 | 0a81da8 | added / added (diff)
# 2nd | ceefa67 | [none] | 283b482 | removed / changed
# 3rd | e5388c1 | 5772f42 | [none] | changed / removed
# 4th | 6e8e3fe | e2bfd06 | cff59c7 | changed / changed (diff)
# 5th | [none] | [none] | [none] | [none]
cat <<EOF | sort >expect_conflicts
$commit_sha1
$commit_sha2
$commit_sha3
$commit_sha4
EOF
cat >expect_conflict_$commit_sha1 <<EOF
<<<<<<< refs/notes/m
y notes on 1st commit
=======
z notes on 1st commit
>>>>>>> refs/notes/z
EOF
cat >expect_conflict_$commit_sha2 <<EOF
z notes on 2nd commit
EOF
cat >expect_conflict_$commit_sha3 <<EOF
y notes on 3rd commit
EOF
cat >expect_conflict_$commit_sha4 <<EOF
<<<<<<< refs/notes/m
y notes on 4th commit
=======
z notes on 4th commit
>>>>>>> refs/notes/z
EOF
cp expect_notes_y expect_notes_m
cp expect_log_y expect_log_m
git rev-parse refs/notes/y > pre_merge_y
git rev-parse refs/notes/z > pre_merge_z
test_expect_success 'merge z into m (== y) with default ("manual") resolver => Conflicting 3-way merge' '
git update-ref refs/notes/m refs/notes/y &&
git config core.notesRef refs/notes/m &&
test_must_fail git notes merge z >output 2>&1 &&
# Output should point to where to resolve conflicts
test_i18ngrep "\\.git/NOTES_MERGE_WORKTREE" output &&
# Inspect merge conflicts
ls .git/NOTES_MERGE_WORKTREE >output_conflicts &&
test_cmp expect_conflicts output_conflicts &&
( for f in $(cat expect_conflicts); do
test_cmp "expect_conflict_$f" ".git/NOTES_MERGE_WORKTREE/$f" ||
exit 1
done ) &&
# Verify that current notes tree (pre-merge) has not changed (m == y)
verify_notes y &&
verify_notes m &&
test "$(git rev-parse refs/notes/m)" = "$(cat pre_merge_y)"
'
cat <<EOF | sort >expect_notes_z
$(test_oid hash04d) $commit_sha4
$(test_oid hash02c) $commit_sha2
$(test_oid hash01c) $commit_sha1
EOF
cat >expect_log_z <<EOF
$commit_sha5 5th
$commit_sha4 4th
z notes on 4th commit
More z notes on 4th commit
$commit_sha3 3rd
$commit_sha2 2nd
z notes on 2nd commit
$commit_sha1 1st
z notes on 1st commit
EOF
test_expect_success 'change notes in z' '
git notes --ref z append -m "More z notes on 4th commit" 4th &&
verify_notes z
'
test_expect_success 'cannot do merge w/conflicts when previous merge is unfinished' '
test -d .git/NOTES_MERGE_WORKTREE &&
test_must_fail git notes merge z >output 2>&1 &&
# Output should indicate what is wrong
test_i18ngrep -q "\\.git/NOTES_MERGE_\\* exists" output
'
# Setup non-conflicting merge between x and new notes ref w
cat <<EOF | sort >expect_notes_w
$(test_oid hash02a) $commit_sha2
$(test_oid hash01e) $commit_sha1
EOF
cat >expect_log_w <<EOF
$commit_sha5 5th
$commit_sha4 4th
$commit_sha3 3rd
$commit_sha2 2nd
x notes on 2nd commit
$commit_sha1 1st
w notes on 1st commit
EOF
test_expect_success 'setup unrelated notes ref (w)' '
git config core.notesRef refs/notes/w &&
git notes add -m "w notes on 1st commit" 1st &&
git notes add -m "x notes on 2nd commit" 2nd &&
verify_notes w
'
cat <<EOF | sort >expect_notes_w
$(test_oid hash04a) $commit_sha4
$(test_oid hash03a) $commit_sha3
$(test_oid hash02a) $commit_sha2
$(test_oid hash01e) $commit_sha1
EOF
cat >expect_log_w <<EOF
$commit_sha5 5th
$commit_sha4 4th
x notes on 4th commit
$commit_sha3 3rd
x notes on 3rd commit
$commit_sha2 2nd
x notes on 2nd commit
$commit_sha1 1st
w notes on 1st commit
EOF
test_expect_success 'can do merge without conflicts even if previous merge is unfinished (x => w)' '
test -d .git/NOTES_MERGE_WORKTREE &&
git notes merge x &&
verify_notes w &&
# Verify that other notes refs has not changed (x and y)
verify_notes x &&
verify_notes y
'
cat <<EOF | sort >expect_notes_m
$(test_oid hash04f) $commit_sha4
$(test_oid hash03b) $commit_sha3
$(test_oid hash02c) $commit_sha2
$(test_oid hash01f) $commit_sha1
EOF
cat >expect_log_m <<EOF
$commit_sha5 5th
$commit_sha4 4th
y and z notes on 4th commit
$commit_sha3 3rd
y notes on 3rd commit
$commit_sha2 2nd
z notes on 2nd commit
$commit_sha1 1st
y and z notes on 1st commit
EOF
test_expect_success 'do not allow mixing --commit and --abort' '
test_must_fail git notes merge --commit --abort
'
test_expect_success 'do not allow mixing --commit and --strategy' '
test_must_fail git notes merge --commit --strategy theirs
'
test_expect_success 'do not allow mixing --abort and --strategy' '
test_must_fail git notes merge --abort --strategy theirs
'
test_expect_success 'finalize conflicting merge (z => m)' '
# Resolve conflicts and finalize merge
cat >.git/NOTES_MERGE_WORKTREE/$commit_sha1 <<EOF &&
y and z notes on 1st commit
EOF
cat >.git/NOTES_MERGE_WORKTREE/$commit_sha4 <<EOF &&
y and z notes on 4th commit
EOF
git notes merge --commit &&
notes_merge_files_gone &&
# Merge commit has pre-merge y and pre-merge z as parents
test "$(git rev-parse refs/notes/m^1)" = "$(cat pre_merge_y)" &&
test "$(git rev-parse refs/notes/m^2)" = "$(cat pre_merge_z)" &&
# Merge commit mentions the notes refs merged
git log -1 --format=%B refs/notes/m > merge_commit_msg &&
grep -q refs/notes/m merge_commit_msg &&
grep -q refs/notes/z merge_commit_msg &&
# Merge commit mentions conflicting notes
grep -q "Conflicts" merge_commit_msg &&
( for sha1 in $(cat expect_conflicts); do
grep -q "$sha1" merge_commit_msg ||
exit 1
done ) &&
# Verify contents of merge result
verify_notes m &&
# Verify that other notes refs has not changed (w, x, y and z)
verify_notes w &&
verify_notes x &&
verify_notes y &&
verify_notes z
'
cat >expect_conflict_$commit_sha4 <<EOF
<<<<<<< refs/notes/m
y notes on 4th commit
=======
z notes on 4th commit
More z notes on 4th commit
>>>>>>> refs/notes/z
EOF
cp expect_notes_y expect_notes_m
cp expect_log_y expect_log_m
git rev-parse refs/notes/y > pre_merge_y
git rev-parse refs/notes/z > pre_merge_z
test_expect_success 'redo merge of z into m (== y) with default ("manual") resolver => Conflicting 3-way merge' '
git update-ref refs/notes/m refs/notes/y &&
git config core.notesRef refs/notes/m &&
test_must_fail git notes merge z >output 2>&1 &&
# Output should point to where to resolve conflicts
test_i18ngrep "\\.git/NOTES_MERGE_WORKTREE" output &&
# Inspect merge conflicts
ls .git/NOTES_MERGE_WORKTREE >output_conflicts &&
test_cmp expect_conflicts output_conflicts &&
( for f in $(cat expect_conflicts); do
test_cmp "expect_conflict_$f" ".git/NOTES_MERGE_WORKTREE/$f" ||
exit 1
done ) &&
# Verify that current notes tree (pre-merge) has not changed (m == y)
verify_notes y &&
verify_notes m &&
test "$(git rev-parse refs/notes/m)" = "$(cat pre_merge_y)"
'
test_expect_success 'abort notes merge' '
git notes merge --abort &&
notes_merge_files_gone &&
# m has not moved (still == y)
test "$(git rev-parse refs/notes/m)" = "$(cat pre_merge_y)" &&
# Verify that other notes refs has not changed (w, x, y and z)
verify_notes w &&
verify_notes x &&
verify_notes y &&
verify_notes z
'
git rev-parse refs/notes/y > pre_merge_y
git rev-parse refs/notes/z > pre_merge_z
test_expect_success 'redo merge of z into m (== y) with default ("manual") resolver => Conflicting 3-way merge' '
test_must_fail git notes merge z >output 2>&1 &&
# Output should point to where to resolve conflicts
test_i18ngrep "\\.git/NOTES_MERGE_WORKTREE" output &&
# Inspect merge conflicts
ls .git/NOTES_MERGE_WORKTREE >output_conflicts &&
test_cmp expect_conflicts output_conflicts &&
( for f in $(cat expect_conflicts); do
test_cmp "expect_conflict_$f" ".git/NOTES_MERGE_WORKTREE/$f" ||
exit 1
done ) &&
# Verify that current notes tree (pre-merge) has not changed (m == y)
verify_notes y &&
verify_notes m &&
test "$(git rev-parse refs/notes/m)" = "$(cat pre_merge_y)"
'
cat <<EOF | sort >expect_notes_m
$(test_oid hash05g) $commit_sha5
$(test_oid hash02c) $commit_sha2
$(test_oid hash01f) $commit_sha1
EOF
cat >expect_log_m <<EOF
$commit_sha5 5th
new note on 5th commit
$commit_sha4 4th
$commit_sha3 3rd
$commit_sha2 2nd
z notes on 2nd commit
$commit_sha1 1st
y and z notes on 1st commit
EOF
test_expect_success 'add + remove notes in finalized merge (z => m)' '
# Resolve one conflict
cat >.git/NOTES_MERGE_WORKTREE/$commit_sha1 <<EOF &&
y and z notes on 1st commit
EOF
# Remove another conflict
rm .git/NOTES_MERGE_WORKTREE/$commit_sha4 &&
# Remove a D/F conflict
rm .git/NOTES_MERGE_WORKTREE/$commit_sha3 &&
# Add a new note
echo "new note on 5th commit" > .git/NOTES_MERGE_WORKTREE/$commit_sha5 &&
# Finalize merge
git notes merge --commit &&
notes_merge_files_gone &&
# Merge commit has pre-merge y and pre-merge z as parents
test "$(git rev-parse refs/notes/m^1)" = "$(cat pre_merge_y)" &&
test "$(git rev-parse refs/notes/m^2)" = "$(cat pre_merge_z)" &&
# Merge commit mentions the notes refs merged
git log -1 --format=%B refs/notes/m > merge_commit_msg &&
grep -q refs/notes/m merge_commit_msg &&
grep -q refs/notes/z merge_commit_msg &&
# Merge commit mentions conflicting notes
grep -q "Conflicts" merge_commit_msg &&
( for sha1 in $(cat expect_conflicts); do
grep -q "$sha1" merge_commit_msg ||
exit 1
done ) &&
# Verify contents of merge result
verify_notes m &&
# Verify that other notes refs has not changed (w, x, y and z)
verify_notes w &&
verify_notes x &&
verify_notes y &&
verify_notes z
'
cp expect_notes_y expect_notes_m
cp expect_log_y expect_log_m
test_expect_success 'redo merge of z into m (== y) with default ("manual") resolver => Conflicting 3-way merge' '
git update-ref refs/notes/m refs/notes/y &&
test_must_fail git notes merge z >output 2>&1 &&
# Output should point to where to resolve conflicts
test_i18ngrep "\\.git/NOTES_MERGE_WORKTREE" output &&
# Inspect merge conflicts
ls .git/NOTES_MERGE_WORKTREE >output_conflicts &&
test_cmp expect_conflicts output_conflicts &&
( for f in $(cat expect_conflicts); do
test_cmp "expect_conflict_$f" ".git/NOTES_MERGE_WORKTREE/$f" ||
exit 1
done ) &&
# Verify that current notes tree (pre-merge) has not changed (m == y)
verify_notes y &&
verify_notes m &&
test "$(git rev-parse refs/notes/m)" = "$(cat pre_merge_y)"
'
cp expect_notes_w expect_notes_m
cp expect_log_w expect_log_m
test_expect_success 'reset notes ref m to somewhere else (w)' '
git update-ref refs/notes/m refs/notes/w &&
verify_notes m &&
test "$(git rev-parse refs/notes/m)" = "$(git rev-parse refs/notes/w)"
'
test_expect_success 'fail to finalize conflicting merge if underlying ref has moved in the meantime (m != NOTES_MERGE_PARTIAL^1)' '
# Resolve conflicts
cat >.git/NOTES_MERGE_WORKTREE/$commit_sha1 <<EOF &&
y and z notes on 1st commit
EOF
cat >.git/NOTES_MERGE_WORKTREE/$commit_sha4 <<EOF &&
y and z notes on 4th commit
EOF
# Fail to finalize merge
test_must_fail git notes merge --commit >output 2>&1 &&
# .git/NOTES_MERGE_* must remain
test -f .git/NOTES_MERGE_PARTIAL &&
test -f .git/NOTES_MERGE_REF &&
test -f .git/NOTES_MERGE_WORKTREE/$commit_sha1 &&
test -f .git/NOTES_MERGE_WORKTREE/$commit_sha2 &&
test -f .git/NOTES_MERGE_WORKTREE/$commit_sha3 &&
test -f .git/NOTES_MERGE_WORKTREE/$commit_sha4 &&
# Refs are unchanged
test "$(git rev-parse refs/notes/m)" = "$(git rev-parse refs/notes/w)" &&
test "$(git rev-parse refs/notes/y)" = "$(git rev-parse NOTES_MERGE_PARTIAL^1)" &&
test "$(git rev-parse refs/notes/m)" != "$(git rev-parse NOTES_MERGE_PARTIAL^1)" &&
# Mention refs/notes/m, and its current and expected value in output
test_i18ngrep -q "refs/notes/m" output &&
test_i18ngrep -q "$(git rev-parse refs/notes/m)" output &&
test_i18ngrep -q "$(git rev-parse NOTES_MERGE_PARTIAL^1)" output &&
# Verify that other notes refs has not changed (w, x, y and z)
verify_notes w &&
verify_notes x &&
verify_notes y &&
verify_notes z
'
test_expect_success 'resolve situation by aborting the notes merge' '
git notes merge --abort &&
notes_merge_files_gone &&
# m has not moved (still == w)
test "$(git rev-parse refs/notes/m)" = "$(git rev-parse refs/notes/w)" &&
# Verify that other notes refs has not changed (w, x, y and z)
verify_notes w &&
verify_notes x &&
verify_notes y &&
verify_notes z
'
cat >expect_notes <<EOF
foo
bar
EOF
test_expect_success 'switch cwd before committing notes merge' '
git notes add -m foo HEAD &&
git notes --ref=other add -m bar HEAD &&
test_must_fail git notes merge refs/notes/other &&
(
cd .git/NOTES_MERGE_WORKTREE &&
echo "foo" > $(git rev-parse HEAD) &&
echo "bar" >> $(git rev-parse HEAD) &&
git notes merge --commit
) &&
git notes show HEAD > actual_notes &&
test_cmp expect_notes actual_notes
'
test_done