| 1 | #!/bin/sh |
| 2 | |
| 3 | test_description="Test whether cache-tree is properly updated |
| 4 | |
| 5 | Tests whether various commands properly update and/or rewrite the |
| 6 | cache-tree extension. |
| 7 | " |
| 8 | |
| 9 | . ./test-lib.sh |
| 10 | |
| 11 | cmp_cache_tree () { |
| 12 | test-tool dump-cache-tree | sed -e '/#(ref)/d' >actual && |
| 13 | sed "s/$OID_REGEX/SHA/" <actual >filtered && |
| 14 | test_cmp "$1" filtered && |
| 15 | rm filtered |
| 16 | } |
| 17 | |
| 18 | # We don't bother with actually checking the SHA1: |
| 19 | # test-tool dump-cache-tree already verifies that all existing data is |
| 20 | # correct. |
| 21 | generate_expected_cache_tree () { |
| 22 | pathspec="$1" && |
| 23 | dir="$2${2:+/}" && |
| 24 | git ls-tree --name-only HEAD -- "$pathspec" >files && |
| 25 | git ls-tree --name-only -d HEAD -- "$pathspec" >subtrees && |
| 26 | printf "SHA %s (%d entries, %d subtrees)\n" "$dir" $(wc -l <files) $(wc -l <subtrees) && |
| 27 | while read subtree |
| 28 | do |
| 29 | generate_expected_cache_tree "$pathspec/$subtree/" "$subtree" || return 1 |
| 30 | done <subtrees |
| 31 | } |
| 32 | |
| 33 | test_cache_tree () { |
| 34 | generate_expected_cache_tree "." >expect && |
| 35 | cmp_cache_tree expect && |
| 36 | rm expect actual files subtrees && |
| 37 | git status --porcelain -- ':!status' ':!expected.status' >status && |
| 38 | if test -n "$1" |
| 39 | then |
| 40 | test_cmp "$1" status |
| 41 | else |
| 42 | test_must_be_empty status |
| 43 | fi |
| 44 | } |
| 45 | |
| 46 | test_invalid_cache_tree () { |
| 47 | printf "invalid %s ()\n" "" "$@" >expect && |
| 48 | test-tool dump-cache-tree | |
| 49 | sed -n -e "s/[0-9]* subtrees//" -e '/#(ref)/d' -e '/^invalid /p' >actual && |
| 50 | test_cmp expect actual |
| 51 | } |
| 52 | |
| 53 | test_no_cache_tree () { |
| 54 | >expect && |
| 55 | cmp_cache_tree expect |
| 56 | } |
| 57 | |
| 58 | test_expect_success 'initial commit has cache-tree' ' |
| 59 | test_commit foo && |
| 60 | test_cache_tree |
| 61 | ' |
| 62 | |
| 63 | test_expect_success 'read-tree HEAD establishes cache-tree' ' |
| 64 | git read-tree HEAD && |
| 65 | test_cache_tree |
| 66 | ' |
| 67 | |
| 68 | test_expect_success 'git-add invalidates cache-tree' ' |
| 69 | test_when_finished "git reset --hard; git read-tree HEAD" && |
| 70 | echo "I changed this file" >foo && |
| 71 | git add foo && |
| 72 | test_invalid_cache_tree |
| 73 | ' |
| 74 | |
| 75 | test_expect_success 'git-add in subdir invalidates cache-tree' ' |
| 76 | test_when_finished "git reset --hard; git read-tree HEAD" && |
| 77 | mkdir dirx && |
| 78 | echo "I changed this file" >dirx/foo && |
| 79 | git add dirx/foo && |
| 80 | test_invalid_cache_tree |
| 81 | ' |
| 82 | |
| 83 | test_expect_success 'git-add in subdir does not invalidate sibling cache-tree' ' |
| 84 | git tag no-children && |
| 85 | test_when_finished "git reset --hard no-children; git read-tree HEAD" && |
| 86 | mkdir dir1 dir2 && |
| 87 | test_commit dir1/a && |
| 88 | test_commit dir2/b && |
| 89 | echo "I changed this file" >dir1/a && |
| 90 | test_when_finished "rm before" && |
| 91 | cat >before <<-\EOF && |
| 92 | SHA (3 entries, 2 subtrees) |
| 93 | SHA dir1/ (1 entries, 0 subtrees) |
| 94 | SHA dir2/ (1 entries, 0 subtrees) |
| 95 | EOF |
| 96 | cmp_cache_tree before && |
| 97 | echo "I changed this file" >dir1/a && |
| 98 | git add dir1/a && |
| 99 | cat >expect <<-\EOF && |
| 100 | invalid (2 subtrees) |
| 101 | invalid dir1/ (0 subtrees) |
| 102 | SHA dir2/ (1 entries, 0 subtrees) |
| 103 | EOF |
| 104 | cmp_cache_tree expect |
| 105 | ' |
| 106 | |
| 107 | test_expect_success 'update-index invalidates cache-tree' ' |
| 108 | test_when_finished "git reset --hard; git read-tree HEAD" && |
| 109 | echo "I changed this file" >foo && |
| 110 | git update-index --add foo && |
| 111 | test_invalid_cache_tree |
| 112 | ' |
| 113 | |
| 114 | test_expect_success 'write-tree establishes cache-tree' ' |
| 115 | test-tool scrap-cache-tree && |
| 116 | git write-tree && |
| 117 | test_cache_tree |
| 118 | ' |
| 119 | |
| 120 | test_expect_success 'test-tool scrap-cache-tree works' ' |
| 121 | git read-tree HEAD && |
| 122 | test-tool scrap-cache-tree && |
| 123 | test_no_cache_tree |
| 124 | ' |
| 125 | |
| 126 | test_expect_success 'second commit has cache-tree' ' |
| 127 | test_commit bar && |
| 128 | test_cache_tree |
| 129 | ' |
| 130 | |
| 131 | test_expect_success 'commit --interactive gives cache-tree on partial commit' ' |
| 132 | test_when_finished "git reset --hard" && |
| 133 | cat <<-\EOT >foo.c && |
| 134 | int foo() |
| 135 | { |
| 136 | return 42; |
| 137 | } |
| 138 | int bar() |
| 139 | { |
| 140 | return 42; |
| 141 | } |
| 142 | EOT |
| 143 | git add foo.c && |
| 144 | test_invalid_cache_tree && |
| 145 | git commit -m "add a file" && |
| 146 | test_cache_tree && |
| 147 | cat <<-\EOT >foo.c && |
| 148 | int foo() |
| 149 | { |
| 150 | return 43; |
| 151 | } |
| 152 | int bar() |
| 153 | { |
| 154 | return 44; |
| 155 | } |
| 156 | EOT |
| 157 | test_write_lines p 1 "" s n y q | |
| 158 | git commit --interactive -m foo && |
| 159 | cat <<-\EOF >expected.status && |
| 160 | M foo.c |
| 161 | EOF |
| 162 | test_cache_tree expected.status |
| 163 | ' |
| 164 | |
| 165 | test_expect_success 'commit -p with shrinking cache-tree' ' |
| 166 | mkdir -p deep/very-long-subdir && |
| 167 | echo content >deep/very-long-subdir/file && |
| 168 | git add deep && |
| 169 | git commit -m add && |
| 170 | git rm -r deep && |
| 171 | |
| 172 | before=$(wc -c <.git/index) && |
| 173 | git commit -m delete -p && |
| 174 | after=$(wc -c <.git/index) && |
| 175 | |
| 176 | # double check that the index shrank |
| 177 | test $before -gt $after && |
| 178 | |
| 179 | # and that our index was not corrupted |
| 180 | git fsck |
| 181 | ' |
| 182 | |
| 183 | test_expect_success 'commit in child dir has cache-tree' ' |
| 184 | mkdir dir && |
| 185 | >dir/child.t && |
| 186 | git add dir/child.t && |
| 187 | git commit -m dir/child.t && |
| 188 | test_cache_tree |
| 189 | ' |
| 190 | |
| 191 | test_expect_success 'reset --hard gives cache-tree' ' |
| 192 | test-tool scrap-cache-tree && |
| 193 | git reset --hard && |
| 194 | test_cache_tree |
| 195 | ' |
| 196 | |
| 197 | test_expect_success 'reset --hard without index gives cache-tree' ' |
| 198 | rm -f .git/index && |
| 199 | git clean -fd && |
| 200 | git reset --hard && |
| 201 | test_cache_tree |
| 202 | ' |
| 203 | |
| 204 | test_expect_success 'checkout gives cache-tree' ' |
| 205 | git tag current && |
| 206 | git checkout HEAD^ && |
| 207 | test_cache_tree |
| 208 | ' |
| 209 | |
| 210 | test_expect_success 'checkout -b gives cache-tree' ' |
| 211 | git checkout current && |
| 212 | git checkout -b prev HEAD^ && |
| 213 | test_cache_tree |
| 214 | ' |
| 215 | |
| 216 | test_expect_success 'checkout -B gives cache-tree' ' |
| 217 | git checkout current && |
| 218 | git checkout -B prev HEAD^ && |
| 219 | test_cache_tree |
| 220 | ' |
| 221 | |
| 222 | test_expect_success 'merge --ff-only maintains cache-tree' ' |
| 223 | git checkout current && |
| 224 | git checkout -b changes && |
| 225 | test_commit llamas && |
| 226 | test_commit pachyderm && |
| 227 | test_cache_tree && |
| 228 | git checkout current && |
| 229 | test_cache_tree && |
| 230 | git merge --ff-only changes && |
| 231 | test_cache_tree |
| 232 | ' |
| 233 | |
| 234 | test_expect_success 'merge maintains cache-tree' ' |
| 235 | git checkout current && |
| 236 | git checkout -b changes2 && |
| 237 | test_commit alpacas && |
| 238 | test_cache_tree && |
| 239 | git checkout current && |
| 240 | test_commit struthio && |
| 241 | test_cache_tree && |
| 242 | git merge changes2 && |
| 243 | test_cache_tree |
| 244 | ' |
| 245 | |
| 246 | test_expect_success 'partial commit gives cache-tree' ' |
| 247 | git checkout -b partial no-children && |
| 248 | test_commit one && |
| 249 | test_commit two && |
| 250 | echo "some change" >one.t && |
| 251 | git add one.t && |
| 252 | echo "some other change" >two.t && |
| 253 | git commit two.t -m partial && |
| 254 | cat <<-\EOF >expected.status && |
| 255 | M one.t |
| 256 | EOF |
| 257 | test_cache_tree expected.status |
| 258 | ' |
| 259 | |
| 260 | test_expect_success 'no phantom error when switching trees' ' |
| 261 | mkdir newdir && |
| 262 | >newdir/one && |
| 263 | git add newdir/one && |
| 264 | git checkout 2>errors && |
| 265 | test_must_be_empty errors |
| 266 | ' |
| 267 | |
| 268 | test_expect_success 'switching trees does not invalidate shared index' ' |
| 269 | ( |
| 270 | sane_unset GIT_TEST_SPLIT_INDEX && |
| 271 | git update-index --split-index && |
| 272 | >split && |
| 273 | git add split && |
| 274 | test-tool dump-split-index .git/index | grep -v ^own >before && |
| 275 | git commit -m "as-is" && |
| 276 | test-tool dump-split-index .git/index | grep -v ^own >after && |
| 277 | test_cmp before after |
| 278 | ) |
| 279 | ' |
| 280 | |
| 281 | test_expect_success 'cache-tree is used by write-tree when valid' ' |
| 282 | test_commit use-valid && |
| 283 | |
| 284 | # write-tree with a valid cache-tree should skip cache_tree_update |
| 285 | GIT_TRACE2_PERF="$(pwd)/trace.output" git write-tree && |
| 286 | test_grep ! region_enter.*cache_tree.*update trace.output |
| 287 | ' |
| 288 | |
| 289 | test_done |