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git/t/t3309-notes-merge-auto-resolve.sh
Johan Herland a6a09095a0 git notes merge: Add another auto-resolving strategy: "cat_sort_uniq"
This new strategy is similar to "concatenate", but in addition to
concatenating the two note candidates, this strategy sorts the resulting
lines, and removes duplicate lines from the result. This is equivalent to
applying the "cat | sort | uniq" shell pipeline to the two note candidates.

This strategy is useful if the notes follow a line-based format where one
wants to avoid duplicate lines in the merge result.

Note that if either of the note candidates contain duplicate lines _prior_
to the merge, these will also be removed by this merge strategy.

The patch also contains tests and documentation for the new strategy.

Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-17 13:22:53 -08:00

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#!/bin/sh
#
# Copyright (c) 2010 Johan Herland
#
test_description='Test notes merging with auto-resolving strategies'
. ./test-lib.sh
# Set up a notes merge scenario with all kinds of potential conflicts
test_expect_success 'setup commits' '
test_commit 1st &&
test_commit 2nd &&
test_commit 3rd &&
test_commit 4th &&
test_commit 5th &&
test_commit 6th &&
test_commit 7th &&
test_commit 8th &&
test_commit 9th &&
test_commit 10th &&
test_commit 11th &&
test_commit 12th &&
test_commit 13th &&
test_commit 14th &&
test_commit 15th
'
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=$(git rev-parse 5th^{commit})
commit_sha6=$(git rev-parse 6th^{commit})
commit_sha7=$(git rev-parse 7th^{commit})
commit_sha8=$(git rev-parse 8th^{commit})
commit_sha9=$(git rev-parse 9th^{commit})
commit_sha10=$(git rev-parse 10th^{commit})
commit_sha11=$(git rev-parse 11th^{commit})
commit_sha12=$(git rev-parse 12th^{commit})
commit_sha13=$(git rev-parse 13th^{commit})
commit_sha14=$(git rev-parse 14th^{commit})
commit_sha15=$(git rev-parse 15th^{commit})
verify_notes () {
notes_ref="$1"
suffix="$2"
git -c core.notesRef="refs/notes/$notes_ref" notes |
sort >"output_notes_$suffix" &&
test_cmp "expect_notes_$suffix" "output_notes_$suffix" &&
git -c core.notesRef="refs/notes/$notes_ref" log --format="%H %s%n%N" \
>"output_log_$suffix" &&
test_cmp "expect_log_$suffix" "output_log_$suffix"
}
test_expect_success 'setup merge base (x)' '
git config core.notesRef refs/notes/x &&
git notes add -m "x notes on 6th commit" 6th &&
git notes add -m "x notes on 7th commit" 7th &&
git notes add -m "x notes on 8th commit" 8th &&
git notes add -m "x notes on 9th commit" 9th &&
git notes add -m "x notes on 10th commit" 10th &&
git notes add -m "x notes on 11th commit" 11th &&
git notes add -m "x notes on 12th commit" 12th &&
git notes add -m "x notes on 13th commit" 13th &&
git notes add -m "x notes on 14th commit" 14th &&
git notes add -m "x notes on 15th commit" 15th
'
cat <<EOF | sort >expect_notes_x
457a85d6c814ea208550f15fcc48f804ac8dc023 $commit_sha15
b0c95b954301d69da2bc3723f4cb1680d355937c $commit_sha14
5d30216a129eeffa97d9694ffe8c74317a560315 $commit_sha13
dd161bc149470fd890dd4ab52a4cbd79bbd18c36 $commit_sha12
7abbc45126d680336fb24294f013a7cdfa3ed545 $commit_sha11
b8d03e173f67f6505a76f6e00cf93440200dd9be $commit_sha10
20c613c835011c48a5abe29170a2402ca6354910 $commit_sha9
a3daf8a1e4e5dc3409a303ad8481d57bfea7f5d6 $commit_sha8
897003322b53bc6ca098e9324ee508362347e734 $commit_sha7
11d97fdebfa5ceee540a3da07bce6fa0222bc082 $commit_sha6
EOF
cat >expect_log_x <<EOF
$commit_sha15 15th
x notes on 15th commit
$commit_sha14 14th
x notes on 14th commit
$commit_sha13 13th
x notes on 13th commit
$commit_sha12 12th
x notes on 12th commit
$commit_sha11 11th
x notes on 11th commit
$commit_sha10 10th
x notes on 10th commit
$commit_sha9 9th
x notes on 9th commit
$commit_sha8 8th
x notes on 8th commit
$commit_sha7 7th
x notes on 7th commit
$commit_sha6 6th
x notes on 6th commit
$commit_sha5 5th
$commit_sha4 4th
$commit_sha3 3rd
$commit_sha2 2nd
$commit_sha1 1st
EOF
test_expect_success 'verify state of merge base (x)' 'verify_notes x x'
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 3rd commit" 3rd &&
git notes add -f -m "y notes on 4th commit" 4th &&
git notes add -f -m "y notes on 5th commit" 5th &&
git notes remove 6th &&
git notes remove 7th &&
git notes remove 8th &&
git notes add -f -m "y notes on 12th commit" 12th &&
git notes add -f -m "y notes on 13th commit" 13th &&
git notes add -f -m "y notes on 14th commit" 14th &&
git notes add -f -m "y notes on 15th commit" 15th
'
cat <<EOF | sort >expect_notes_y
68b8630d25516028bed862719855b3d6768d7833 $commit_sha15
5de7ea7ad4f47e7ff91989fb82234634730f75df $commit_sha14
3a631fdb6f41b05b55d8f4baf20728ba8f6fccbc $commit_sha13
a66055fa82f7a03fe0c02a6aba3287a85abf7c62 $commit_sha12
7abbc45126d680336fb24294f013a7cdfa3ed545 $commit_sha11
b8d03e173f67f6505a76f6e00cf93440200dd9be $commit_sha10
20c613c835011c48a5abe29170a2402ca6354910 $commit_sha9
154508c7a0bcad82b6fe4b472bc4c26b3bf0825b $commit_sha5
e2bfd06a37dd2031684a59a6e2b033e212239c78 $commit_sha4
5772f42408c0dd6f097a7ca2d24de0e78d1c46b1 $commit_sha3
EOF
cat >expect_log_y <<EOF
$commit_sha15 15th
y notes on 15th commit
$commit_sha14 14th
y notes on 14th commit
$commit_sha13 13th
y notes on 13th commit
$commit_sha12 12th
y notes on 12th commit
$commit_sha11 11th
x notes on 11th commit
$commit_sha10 10th
x notes on 10th commit
$commit_sha9 9th
x notes on 9th commit
$commit_sha8 8th
$commit_sha7 7th
$commit_sha6 6th
$commit_sha5 5th
y notes on 5th commit
$commit_sha4 4th
y notes on 4th commit
$commit_sha3 3rd
y notes on 3rd commit
$commit_sha2 2nd
$commit_sha1 1st
EOF
test_expect_success 'verify state of local branch (y)' 'verify_notes y y'
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 2nd commit" 2nd &&
git notes add -f -m "y notes on 4th commit" 4th &&
git notes add -f -m "z notes on 5th commit" 5th &&
git notes remove 6th &&
git notes add -f -m "z notes on 8th commit" 8th &&
git notes remove 9th &&
git notes add -f -m "z notes on 11th commit" 11th &&
git notes remove 12th &&
git notes add -f -m "y notes on 14th commit" 14th &&
git notes add -f -m "z notes on 15th commit" 15th
'
cat <<EOF | sort >expect_notes_z
9b4b2c61f0615412da3c10f98ff85b57c04ec765 $commit_sha15
5de7ea7ad4f47e7ff91989fb82234634730f75df $commit_sha14
5d30216a129eeffa97d9694ffe8c74317a560315 $commit_sha13
7e3c53503a3db8dd996cb62e37c66e070b44b54d $commit_sha11
b8d03e173f67f6505a76f6e00cf93440200dd9be $commit_sha10
851e1638784a884c7dd26c5d41f3340f6387413a $commit_sha8
897003322b53bc6ca098e9324ee508362347e734 $commit_sha7
99fc34adfc400b95c67b013115e37e31aa9a6d23 $commit_sha5
e2bfd06a37dd2031684a59a6e2b033e212239c78 $commit_sha4
283b48219aee9a4105f6cab337e789065c82c2b9 $commit_sha2
EOF
cat >expect_log_z <<EOF
$commit_sha15 15th
z notes on 15th commit
$commit_sha14 14th
y notes on 14th commit
$commit_sha13 13th
x notes on 13th commit
$commit_sha12 12th
$commit_sha11 11th
z notes on 11th commit
$commit_sha10 10th
x notes on 10th commit
$commit_sha9 9th
$commit_sha8 8th
z notes on 8th commit
$commit_sha7 7th
x notes on 7th commit
$commit_sha6 6th
$commit_sha5 5th
z notes on 5th commit
$commit_sha4 4th
y notes on 4th commit
$commit_sha3 3rd
$commit_sha2 2nd
z notes on 2nd commit
$commit_sha1 1st
EOF
test_expect_success 'verify state of remote branch (z)' 'verify_notes z 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 | result
# -------|---------|---------|----------|----------------------------|-------
# 1st | [none] | [none] | [none] | unchanged / unchanged | [none]
# 2nd | [none] | [none] | 283b482 | unchanged / added | 283b482
# 3rd | [none] | 5772f42 | [none] | added / unchanged | 5772f42
# 4th | [none] | e2bfd06 | e2bfd06 | added / added (same) | e2bfd06
# 5th | [none] | 154508c | 99fc34a | added / added (diff) | ???
# 6th | 11d97fd | [none] | [none] | removed / removed | [none]
# 7th | 8970033 | [none] | 8970033 | removed / unchanged | [none]
# 8th | a3daf8a | [none] | 851e163 | removed / changed | ???
# 9th | 20c613c | 20c613c | [none] | unchanged / removed | [none]
# 10th | b8d03e1 | b8d03e1 | b8d03e1 | unchanged / unchanged | b8d03e1
# 11th | 7abbc45 | 7abbc45 | 7e3c535 | unchanged / changed | 7e3c535
# 12th | dd161bc | a66055f | [none] | changed / removed | ???
# 13th | 5d30216 | 3a631fd | 5d30216 | changed / unchanged | 3a631fd
# 14th | b0c95b9 | 5de7ea7 | 5de7ea7 | changed / changed (same) | 5de7ea7
# 15th | 457a85d | 68b8630 | 9b4b2c6 | changed / changed (diff) | ???
test_expect_success 'merge z into y with invalid strategy => Fail/No changes' '
git config core.notesRef refs/notes/y &&
test_must_fail git notes merge --strategy=foo z &&
# Verify no changes (y)
verify_notes y y
'
cat <<EOF | sort >expect_notes_ours
68b8630d25516028bed862719855b3d6768d7833 $commit_sha15
5de7ea7ad4f47e7ff91989fb82234634730f75df $commit_sha14
3a631fdb6f41b05b55d8f4baf20728ba8f6fccbc $commit_sha13
a66055fa82f7a03fe0c02a6aba3287a85abf7c62 $commit_sha12
7e3c53503a3db8dd996cb62e37c66e070b44b54d $commit_sha11
b8d03e173f67f6505a76f6e00cf93440200dd9be $commit_sha10
154508c7a0bcad82b6fe4b472bc4c26b3bf0825b $commit_sha5
e2bfd06a37dd2031684a59a6e2b033e212239c78 $commit_sha4
5772f42408c0dd6f097a7ca2d24de0e78d1c46b1 $commit_sha3
283b48219aee9a4105f6cab337e789065c82c2b9 $commit_sha2
EOF
cat >expect_log_ours <<EOF
$commit_sha15 15th
y notes on 15th commit
$commit_sha14 14th
y notes on 14th commit
$commit_sha13 13th
y notes on 13th commit
$commit_sha12 12th
y notes on 12th commit
$commit_sha11 11th
z notes on 11th commit
$commit_sha10 10th
x notes on 10th commit
$commit_sha9 9th
$commit_sha8 8th
$commit_sha7 7th
$commit_sha6 6th
$commit_sha5 5th
y notes on 5th commit
$commit_sha4 4th
y notes on 4th commit
$commit_sha3 3rd
y notes on 3rd commit
$commit_sha2 2nd
z notes on 2nd commit
$commit_sha1 1st
EOF
test_expect_success 'merge z into y with "ours" strategy => Non-conflicting 3-way merge' '
git notes merge --strategy=ours z &&
verify_notes y ours
'
test_expect_success 'reset to pre-merge state (y)' '
git update-ref refs/notes/y refs/notes/y^1 &&
# Verify pre-merge state
verify_notes y y
'
cat <<EOF | sort >expect_notes_theirs
9b4b2c61f0615412da3c10f98ff85b57c04ec765 $commit_sha15
5de7ea7ad4f47e7ff91989fb82234634730f75df $commit_sha14
3a631fdb6f41b05b55d8f4baf20728ba8f6fccbc $commit_sha13
7e3c53503a3db8dd996cb62e37c66e070b44b54d $commit_sha11
b8d03e173f67f6505a76f6e00cf93440200dd9be $commit_sha10
851e1638784a884c7dd26c5d41f3340f6387413a $commit_sha8
99fc34adfc400b95c67b013115e37e31aa9a6d23 $commit_sha5
e2bfd06a37dd2031684a59a6e2b033e212239c78 $commit_sha4
5772f42408c0dd6f097a7ca2d24de0e78d1c46b1 $commit_sha3
283b48219aee9a4105f6cab337e789065c82c2b9 $commit_sha2
EOF
cat >expect_log_theirs <<EOF
$commit_sha15 15th
z notes on 15th commit
$commit_sha14 14th
y notes on 14th commit
$commit_sha13 13th
y notes on 13th commit
$commit_sha12 12th
$commit_sha11 11th
z notes on 11th commit
$commit_sha10 10th
x notes on 10th commit
$commit_sha9 9th
$commit_sha8 8th
z notes on 8th commit
$commit_sha7 7th
$commit_sha6 6th
$commit_sha5 5th
z notes on 5th commit
$commit_sha4 4th
y notes on 4th commit
$commit_sha3 3rd
y notes on 3rd commit
$commit_sha2 2nd
z notes on 2nd commit
$commit_sha1 1st
EOF
test_expect_success 'merge z into y with "theirs" strategy => Non-conflicting 3-way merge' '
git notes merge --strategy=theirs z &&
verify_notes y theirs
'
test_expect_success 'reset to pre-merge state (y)' '
git update-ref refs/notes/y refs/notes/y^1 &&
# Verify pre-merge state
verify_notes y y
'
cat <<EOF | sort >expect_notes_union
7c4e546efd0fe939f876beb262ece02797880b54 $commit_sha15
5de7ea7ad4f47e7ff91989fb82234634730f75df $commit_sha14
3a631fdb6f41b05b55d8f4baf20728ba8f6fccbc $commit_sha13
a66055fa82f7a03fe0c02a6aba3287a85abf7c62 $commit_sha12
7e3c53503a3db8dd996cb62e37c66e070b44b54d $commit_sha11
b8d03e173f67f6505a76f6e00cf93440200dd9be $commit_sha10
851e1638784a884c7dd26c5d41f3340f6387413a $commit_sha8
6c841cc36ea496027290967ca96bd2bef54dbb47 $commit_sha5
e2bfd06a37dd2031684a59a6e2b033e212239c78 $commit_sha4
5772f42408c0dd6f097a7ca2d24de0e78d1c46b1 $commit_sha3
283b48219aee9a4105f6cab337e789065c82c2b9 $commit_sha2
EOF
cat >expect_log_union <<EOF
$commit_sha15 15th
y notes on 15th commit
z notes on 15th commit
$commit_sha14 14th
y notes on 14th commit
$commit_sha13 13th
y notes on 13th commit
$commit_sha12 12th
y notes on 12th commit
$commit_sha11 11th
z notes on 11th commit
$commit_sha10 10th
x notes on 10th commit
$commit_sha9 9th
$commit_sha8 8th
z notes on 8th commit
$commit_sha7 7th
$commit_sha6 6th
$commit_sha5 5th
y notes on 5th commit
z notes on 5th commit
$commit_sha4 4th
y notes on 4th commit
$commit_sha3 3rd
y notes on 3rd commit
$commit_sha2 2nd
z notes on 2nd commit
$commit_sha1 1st
EOF
test_expect_success 'merge z into y with "union" strategy => Non-conflicting 3-way merge' '
git notes merge --strategy=union z &&
verify_notes y union
'
test_expect_success 'reset to pre-merge state (y)' '
git update-ref refs/notes/y refs/notes/y^1 &&
# Verify pre-merge state
verify_notes y y
'
cat <<EOF | sort >expect_notes_union2
d682107b8bf7a7aea1e537a8d5cb6a12b60135f1 $commit_sha15
5de7ea7ad4f47e7ff91989fb82234634730f75df $commit_sha14
3a631fdb6f41b05b55d8f4baf20728ba8f6fccbc $commit_sha13
a66055fa82f7a03fe0c02a6aba3287a85abf7c62 $commit_sha12
7e3c53503a3db8dd996cb62e37c66e070b44b54d $commit_sha11
b8d03e173f67f6505a76f6e00cf93440200dd9be $commit_sha10
851e1638784a884c7dd26c5d41f3340f6387413a $commit_sha8
357b6ca14c7afd59b7f8b8aaaa6b8b723771135b $commit_sha5
e2bfd06a37dd2031684a59a6e2b033e212239c78 $commit_sha4
5772f42408c0dd6f097a7ca2d24de0e78d1c46b1 $commit_sha3
283b48219aee9a4105f6cab337e789065c82c2b9 $commit_sha2
EOF
cat >expect_log_union2 <<EOF
$commit_sha15 15th
z notes on 15th commit
y notes on 15th commit
$commit_sha14 14th
y notes on 14th commit
$commit_sha13 13th
y notes on 13th commit
$commit_sha12 12th
y notes on 12th commit
$commit_sha11 11th
z notes on 11th commit
$commit_sha10 10th
x notes on 10th commit
$commit_sha9 9th
$commit_sha8 8th
z notes on 8th commit
$commit_sha7 7th
$commit_sha6 6th
$commit_sha5 5th
z notes on 5th commit
y notes on 5th commit
$commit_sha4 4th
y notes on 4th commit
$commit_sha3 3rd
y notes on 3rd commit
$commit_sha2 2nd
z notes on 2nd commit
$commit_sha1 1st
EOF
test_expect_success 'merge y into z with "union" strategy => Non-conflicting 3-way merge' '
git config core.notesRef refs/notes/z &&
git notes merge --strategy=union y &&
verify_notes z union2
'
test_expect_success 'reset to pre-merge state (z)' '
git update-ref refs/notes/z refs/notes/z^1 &&
# Verify pre-merge state
verify_notes z z
'
cat <<EOF | sort >expect_notes_cat_sort_uniq
6be90240b5f54594203e25d9f2f64b7567175aee $commit_sha15
5de7ea7ad4f47e7ff91989fb82234634730f75df $commit_sha14
3a631fdb6f41b05b55d8f4baf20728ba8f6fccbc $commit_sha13
a66055fa82f7a03fe0c02a6aba3287a85abf7c62 $commit_sha12
7e3c53503a3db8dd996cb62e37c66e070b44b54d $commit_sha11
b8d03e173f67f6505a76f6e00cf93440200dd9be $commit_sha10
851e1638784a884c7dd26c5d41f3340f6387413a $commit_sha8
660311d7f78dc53db12ac373a43fca7465381a7e $commit_sha5
e2bfd06a37dd2031684a59a6e2b033e212239c78 $commit_sha4
5772f42408c0dd6f097a7ca2d24de0e78d1c46b1 $commit_sha3
283b48219aee9a4105f6cab337e789065c82c2b9 $commit_sha2
EOF
cat >expect_log_cat_sort_uniq <<EOF
$commit_sha15 15th
y notes on 15th commit
z notes on 15th commit
$commit_sha14 14th
y notes on 14th commit
$commit_sha13 13th
y notes on 13th commit
$commit_sha12 12th
y notes on 12th commit
$commit_sha11 11th
z notes on 11th commit
$commit_sha10 10th
x notes on 10th commit
$commit_sha9 9th
$commit_sha8 8th
z notes on 8th commit
$commit_sha7 7th
$commit_sha6 6th
$commit_sha5 5th
y notes on 5th commit
z notes on 5th commit
$commit_sha4 4th
y notes on 4th commit
$commit_sha3 3rd
y notes on 3rd commit
$commit_sha2 2nd
z notes on 2nd commit
$commit_sha1 1st
EOF
test_expect_success 'merge y into z with "cat_sort_uniq" strategy => Non-conflicting 3-way merge' '
git notes merge --strategy=cat_sort_uniq y &&
verify_notes z cat_sort_uniq
'
test_done