| 1 | #!/bin/sh |
| 2 | |
| 3 | test_description='on-disk reverse index' |
| 4 | |
| 5 | . ./test-lib.sh |
| 6 | |
| 7 | # The below tests want control over the 'pack.writeReverseIndex' setting |
| 8 | # themselves to assert various combinations of it with other options. |
| 9 | sane_unset GIT_TEST_NO_WRITE_REV_INDEX |
| 10 | |
| 11 | packdir=.git/objects/pack |
| 12 | |
| 13 | test_expect_success 'setup' ' |
| 14 | test_commit base && |
| 15 | |
| 16 | test_config pack.writeReverseIndex false && |
| 17 | pack=$(git pack-objects --all $packdir/pack) && |
| 18 | rev=$packdir/pack-$pack.rev && |
| 19 | |
| 20 | test_path_is_missing $rev |
| 21 | ' |
| 22 | |
| 23 | test_index_pack () { |
| 24 | rm -f $rev && |
| 25 | conf=$1 && |
| 26 | shift && |
| 27 | # remove the index since Windows won't overwrite an existing file |
| 28 | rm $packdir/pack-$pack.idx && |
| 29 | git -c pack.writeReverseIndex=$conf index-pack "$@" \ |
| 30 | $packdir/pack-$pack.pack |
| 31 | } |
| 32 | |
| 33 | test_expect_success 'index-pack with pack.writeReverseIndex' ' |
| 34 | test_index_pack "" && |
| 35 | test_path_is_missing $rev && |
| 36 | |
| 37 | test_index_pack false && |
| 38 | test_path_is_missing $rev && |
| 39 | |
| 40 | test_index_pack true && |
| 41 | test_path_is_file $rev |
| 42 | ' |
| 43 | |
| 44 | test_expect_success 'index-pack with --[no-]rev-index' ' |
| 45 | for conf in "" true false |
| 46 | do |
| 47 | test_index_pack "$conf" --rev-index && |
| 48 | test_path_exists $rev && |
| 49 | |
| 50 | test_index_pack "$conf" --no-rev-index && |
| 51 | test_path_is_missing $rev || return 1 |
| 52 | done |
| 53 | ' |
| 54 | |
| 55 | test_expect_success 'index-pack can verify reverse indexes' ' |
| 56 | test_when_finished "rm -f $rev" && |
| 57 | test_index_pack true && |
| 58 | |
| 59 | test_path_is_file $rev && |
| 60 | git index-pack --rev-index --verify $packdir/pack-$pack.pack && |
| 61 | |
| 62 | # Intentionally corrupt the reverse index. |
| 63 | chmod u+w $rev && |
| 64 | printf "xxxx" | dd of=$rev bs=1 count=4 conv=notrunc && |
| 65 | |
| 66 | test_must_fail git index-pack --rev-index --verify \ |
| 67 | $packdir/pack-$pack.pack 2>err && |
| 68 | test_grep "validation error" err |
| 69 | ' |
| 70 | |
| 71 | test_expect_success 'index-pack infers reverse index name with -o' ' |
| 72 | git index-pack --rev-index -o other.idx $packdir/pack-$pack.pack && |
| 73 | test_path_is_file other.idx && |
| 74 | test_path_is_file other.rev |
| 75 | ' |
| 76 | |
| 77 | test_expect_success 'pack-objects respects pack.writeReverseIndex' ' |
| 78 | test_when_finished "rm -fr pack-1-*" && |
| 79 | |
| 80 | git -c pack.writeReverseIndex= pack-objects --all pack-1 && |
| 81 | test_path_is_missing pack-1-*.rev && |
| 82 | |
| 83 | git -c pack.writeReverseIndex=false pack-objects --all pack-1 && |
| 84 | test_path_is_missing pack-1-*.rev && |
| 85 | |
| 86 | git -c pack.writeReverseIndex=true pack-objects --all pack-1 && |
| 87 | test_path_is_file pack-1-*.rev |
| 88 | ' |
| 89 | |
| 90 | test_expect_success 'reverse index is not generated when available on disk' ' |
| 91 | test_index_pack true && |
| 92 | test_path_is_file $rev && |
| 93 | |
| 94 | git rev-parse HEAD >tip && |
| 95 | GIT_TEST_REV_INDEX_DIE_IN_MEMORY=1 git cat-file \ |
| 96 | --batch-check="%(objectsize:disk)" <tip |
| 97 | ' |
| 98 | |
| 99 | test_expect_success 'reverse index is ignored when pack.readReverseIndex is false' ' |
| 100 | test_index_pack true && |
| 101 | test_path_is_file $rev && |
| 102 | |
| 103 | test_config pack.readReverseIndex false && |
| 104 | |
| 105 | git rev-parse HEAD >tip && |
| 106 | GIT_TEST_REV_INDEX_DIE_ON_DISK=1 git cat-file \ |
| 107 | --batch-check="%(objectsize:disk)" <tip |
| 108 | ' |
| 109 | |
| 110 | test_expect_success 'revindex in-memory vs on-disk' ' |
| 111 | git init repo && |
| 112 | test_when_finished "rm -fr repo" && |
| 113 | ( |
| 114 | cd repo && |
| 115 | |
| 116 | test_commit commit && |
| 117 | |
| 118 | git rev-list --objects --no-object-names --all >objects && |
| 119 | |
| 120 | git -c pack.writeReverseIndex=false repack -ad && |
| 121 | test_path_is_missing $packdir/pack-*.rev && |
| 122 | git cat-file --batch-check="%(objectsize:disk) %(objectname)" \ |
| 123 | <objects >in-core && |
| 124 | |
| 125 | git -c pack.writeReverseIndex=true repack -ad && |
| 126 | test_path_is_file $packdir/pack-*.rev && |
| 127 | git cat-file --batch-check="%(objectsize:disk) %(objectname)" \ |
| 128 | <objects >on-disk && |
| 129 | |
| 130 | test_cmp on-disk in-core |
| 131 | ) |
| 132 | ' |
| 133 | |
| 134 | test_expect_success 'fsck succeeds on good rev-index' ' |
| 135 | test_when_finished rm -fr repo && |
| 136 | git init repo && |
| 137 | ( |
| 138 | cd repo && |
| 139 | |
| 140 | test_commit commit && |
| 141 | git -c pack.writeReverseIndex=true repack -ad && |
| 142 | git fsck 2>err && |
| 143 | test_must_be_empty err |
| 144 | ) |
| 145 | ' |
| 146 | |
| 147 | test_expect_success 'set up rev-index corruption tests' ' |
| 148 | git init corrupt && |
| 149 | ( |
| 150 | cd corrupt && |
| 151 | |
| 152 | test_commit commit && |
| 153 | git -c pack.writeReverseIndex=true repack -ad && |
| 154 | |
| 155 | revfile=$(ls .git/objects/pack/pack-*.rev) && |
| 156 | chmod a+w $revfile && |
| 157 | cp $revfile $revfile.bak |
| 158 | ) |
| 159 | ' |
| 160 | |
| 161 | corrupt_rev_and_verify () { |
| 162 | ( |
| 163 | pos="$1" && |
| 164 | value="$2" && |
| 165 | error="$3" && |
| 166 | |
| 167 | cd corrupt && |
| 168 | revfile=$(ls .git/objects/pack/pack-*.rev) && |
| 169 | |
| 170 | # Reset to original rev-file. |
| 171 | cp $revfile.bak $revfile && |
| 172 | |
| 173 | printf "$value" | dd of=$revfile bs=1 seek="$pos" conv=notrunc && |
| 174 | test_must_fail git fsck 2>err && |
| 175 | grep "$error" err |
| 176 | ) |
| 177 | } |
| 178 | |
| 179 | test_expect_success 'fsck catches invalid checksum' ' |
| 180 | revfile=$(ls corrupt/.git/objects/pack/pack-*.rev) && |
| 181 | orig_size=$(wc -c <$revfile) && |
| 182 | hashpos=$((orig_size - 10)) && |
| 183 | corrupt_rev_and_verify $hashpos bogus \ |
| 184 | "invalid checksum" |
| 185 | ' |
| 186 | |
| 187 | test_expect_success 'fsck catches invalid row position' ' |
| 188 | corrupt_rev_and_verify 14 "\07" \ |
| 189 | "invalid rev-index position" |
| 190 | ' |
| 191 | |
| 192 | test_expect_success 'fsck catches invalid header: magic number' ' |
| 193 | corrupt_rev_and_verify 1 "\07" \ |
| 194 | "reverse-index file .* has unknown signature" |
| 195 | ' |
| 196 | |
| 197 | test_expect_success 'fsck catches invalid header: version' ' |
| 198 | corrupt_rev_and_verify 7 "\02" \ |
| 199 | "reverse-index file .* has unsupported version" |
| 200 | ' |
| 201 | |
| 202 | test_expect_success 'fsck catches invalid header: hash function' ' |
| 203 | corrupt_rev_and_verify 11 "\03" \ |
| 204 | "reverse-index file .* has unsupported hash id" |
| 205 | ' |
| 206 | |
| 207 | test_done |