t/t1700-split-index.sh

   1 #!/bin/sh
   2
   3 test_description='split index mode tests'
   4
   5 . ./test-lib.sh
   6
   7 # We need total control of index splitting here
   8 sane_unset GIT_TEST_SPLIT_INDEX
   9 # A couple of tests expect the index to have a specific checksum,
  10 # but the presence of the optional FSMN extension would interfere
  11 # with those checks, so disable it in this test script.
  12 sane_unset GIT_FSMONITOR_TEST
  13
  14 test_expect_success 'enable split index' '
  15         git config splitIndex.maxPercentChange 100 &&
  16         git update-index --split-index &&
  17         test-tool dump-split-index .git/index >actual &&
  18         indexversion=$(test-tool index-version <.git/index) &&
  19         if test "$indexversion" = "4"
  20         then
  21                 own=432ef4b63f32193984f339431fd50ca796493569
  22                 base=508851a7f0dfa8691e9f69c7f055865389012491
  23         else
  24                 own=8299b0bcd1ac364e5f1d7768efb62fa2da79a339
  25                 base=39d890139ee5356c7ef572216cebcd27aa41f9df
  26         fi &&
  27         cat >expect <<-EOF &&
  28         own $own
  29         base $base
  30         replacements:
  31         deletions:
  32         EOF
  33         test_cmp expect actual
  34 '
  35
  36 test_expect_success 'add one file' '
  37         : >one &&
  38         git update-index --add one &&
  39         git ls-files --stage >ls-files.actual &&
  40         cat >ls-files.expect <<-EOF &&
  41         100644 $EMPTY_BLOB 0    one
  42         EOF
  43         test_cmp ls-files.expect ls-files.actual &&
  44
  45         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
  46         cat >expect <<-EOF &&
  47         base $base
  48         100644 $EMPTY_BLOB 0    one
  49         replacements:
  50         deletions:
  51         EOF
  52         test_cmp expect actual
  53 '
  54
  55 test_expect_success 'disable split index' '
  56         git update-index --no-split-index &&
  57         git ls-files --stage >ls-files.actual &&
  58         cat >ls-files.expect <<-EOF &&
  59         100644 $EMPTY_BLOB 0    one
  60         EOF
  61         test_cmp ls-files.expect ls-files.actual &&
  62
  63         BASE=$(test-tool dump-split-index .git/index | grep "^own" | sed "s/own/base/") &&
  64         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
  65         cat >expect <<-EOF &&
  66         not a split index
  67         EOF
  68         test_cmp expect actual
  69 '
  70
  71 test_expect_success 'enable split index again, "one" now belongs to base index"' '
  72         git update-index --split-index &&
  73         git ls-files --stage >ls-files.actual &&
  74         cat >ls-files.expect <<-EOF &&
  75         100644 $EMPTY_BLOB 0    one
  76         EOF
  77         test_cmp ls-files.expect ls-files.actual &&
  78
  79         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
  80         cat >expect <<-EOF &&
  81         $BASE
  82         replacements:
  83         deletions:
  84         EOF
  85         test_cmp expect actual
  86 '
  87
  88 test_expect_success 'modify original file, base index untouched' '
  89         echo modified >one &&
  90         git update-index one &&
  91         git ls-files --stage >ls-files.actual &&
  92         cat >ls-files.expect <<-EOF &&
  93         100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0       one
  94         EOF
  95         test_cmp ls-files.expect ls-files.actual &&
  96
  97         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
  98         q_to_tab >expect <<-EOF &&
  99         $BASE
 100         100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
 101         replacements: 0
 102         deletions:
 103         EOF
 104         test_cmp expect actual
 105 '
 106
 107 test_expect_success 'add another file, which stays index' '
 108         : >two &&
 109         git update-index --add two &&
 110         git ls-files --stage >ls-files.actual &&
 111         cat >ls-files.expect <<-EOF &&
 112         100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0       one
 113         100644 $EMPTY_BLOB 0    two
 114         EOF
 115         test_cmp ls-files.expect ls-files.actual &&
 116
 117         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 118         q_to_tab >expect <<-EOF &&
 119         $BASE
 120         100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
 121         100644 $EMPTY_BLOB 0    two
 122         replacements: 0
 123         deletions:
 124         EOF
 125         test_cmp expect actual
 126 '
 127
 128 test_expect_success 'remove file not in base index' '
 129         git update-index --force-remove two &&
 130         git ls-files --stage >ls-files.actual &&
 131         cat >ls-files.expect <<-EOF &&
 132         100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0       one
 133         EOF
 134         test_cmp ls-files.expect ls-files.actual &&
 135
 136         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 137         q_to_tab >expect <<-EOF &&
 138         $BASE
 139         100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
 140         replacements: 0
 141         deletions:
 142         EOF
 143         test_cmp expect actual
 144 '
 145
 146 test_expect_success 'remove file in base index' '
 147         git update-index --force-remove one &&
 148         git ls-files --stage >ls-files.actual &&
 149         test_must_be_empty ls-files.actual &&
 150
 151         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 152         cat >expect <<-EOF &&
 153         $BASE
 154         replacements:
 155         deletions: 0
 156         EOF
 157         test_cmp expect actual
 158 '
 159
 160 test_expect_success 'add original file back' '
 161         : >one &&
 162         git update-index --add one &&
 163         git ls-files --stage >ls-files.actual &&
 164         cat >ls-files.expect <<-EOF &&
 165         100644 $EMPTY_BLOB 0    one
 166         EOF
 167         test_cmp ls-files.expect ls-files.actual &&
 168
 169         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 170         cat >expect <<-EOF &&
 171         $BASE
 172         100644 $EMPTY_BLOB 0    one
 173         replacements:
 174         deletions: 0
 175         EOF
 176         test_cmp expect actual
 177 '
 178
 179 test_expect_success 'add new file' '
 180         : >two &&
 181         git update-index --add two &&
 182         git ls-files --stage >actual &&
 183         cat >expect <<-EOF &&
 184         100644 $EMPTY_BLOB 0    one
 185         100644 $EMPTY_BLOB 0    two
 186         EOF
 187         test_cmp expect actual
 188 '
 189
 190 test_expect_success 'unify index, two files remain' '
 191         git update-index --no-split-index &&
 192         git ls-files --stage >ls-files.actual &&
 193         cat >ls-files.expect <<-EOF &&
 194         100644 $EMPTY_BLOB 0    one
 195         100644 $EMPTY_BLOB 0    two
 196         EOF
 197         test_cmp ls-files.expect ls-files.actual &&
 198
 199         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 200         cat >expect <<-EOF &&
 201         not a split index
 202         EOF
 203         test_cmp expect actual
 204 '
 205
 206 test_expect_success 'rev-parse --shared-index-path' '
 207         test_create_repo split-index &&
 208         (
 209                 cd split-index &&
 210                 git update-index --split-index &&
 211                 echo .git/sharedindex* >expect &&
 212                 git rev-parse --shared-index-path >actual &&
 213                 test_cmp expect actual &&
 214                 mkdir subdirectory &&
 215                 cd subdirectory &&
 216                 echo ../.git/sharedindex* >expect &&
 217                 git rev-parse --shared-index-path >actual &&
 218                 test_cmp expect actual
 219         )
 220 '
 221
 222 test_expect_success 'set core.splitIndex config variable to true' '
 223         git config core.splitIndex true &&
 224         : >three &&
 225         git update-index --add three &&
 226         git ls-files --stage >ls-files.actual &&
 227         cat >ls-files.expect <<-EOF &&
 228         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       one
 229         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       three
 230         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       two
 231         EOF
 232         test_cmp ls-files.expect ls-files.actual &&
 233         BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
 234         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 235         cat >expect <<-EOF &&
 236         $BASE
 237         replacements:
 238         deletions:
 239         EOF
 240         test_cmp expect actual
 241 '
 242
 243 test_expect_success 'set core.splitIndex config variable to false' '
 244         git config core.splitIndex false &&
 245         git update-index --force-remove three &&
 246         git ls-files --stage >ls-files.actual &&
 247         cat >ls-files.expect <<-EOF &&
 248         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       one
 249         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       two
 250         EOF
 251         test_cmp ls-files.expect ls-files.actual &&
 252         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 253         cat >expect <<-EOF &&
 254         not a split index
 255         EOF
 256         test_cmp expect actual
 257 '
 258
 259 test_expect_success 'set core.splitIndex config variable to true' '
 260         git config core.splitIndex true &&
 261         : >three &&
 262         git update-index --add three &&
 263         BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
 264         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 265         cat >expect <<-EOF &&
 266         $BASE
 267         replacements:
 268         deletions:
 269         EOF
 270         test_cmp expect actual &&
 271         : >four &&
 272         git update-index --add four &&
 273         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 274         cat >expect <<-EOF &&
 275         $BASE
 276         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       four
 277         replacements:
 278         deletions:
 279         EOF
 280         test_cmp expect actual
 281 '
 282
 283 test_expect_success 'check behavior with splitIndex.maxPercentChange unset' '
 284         git config --unset splitIndex.maxPercentChange &&
 285         : >five &&
 286         git update-index --add five &&
 287         BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
 288         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 289         cat >expect <<-EOF &&
 290         $BASE
 291         replacements:
 292         deletions:
 293         EOF
 294         test_cmp expect actual &&
 295         : >six &&
 296         git update-index --add six &&
 297         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 298         cat >expect <<-EOF &&
 299         $BASE
 300         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       six
 301         replacements:
 302         deletions:
 303         EOF
 304         test_cmp expect actual
 305 '
 306
 307 test_expect_success 'check splitIndex.maxPercentChange set to 0' '
 308         git config splitIndex.maxPercentChange 0 &&
 309         : >seven &&
 310         git update-index --add seven &&
 311         BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
 312         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 313         cat >expect <<-EOF &&
 314         $BASE
 315         replacements:
 316         deletions:
 317         EOF
 318         test_cmp expect actual &&
 319         : >eight &&
 320         git update-index --add eight &&
 321         BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
 322         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 323         cat >expect <<-EOF &&
 324         $BASE
 325         replacements:
 326         deletions:
 327         EOF
 328         test_cmp expect actual
 329 '
 330
 331 test_expect_success 'shared index files expire after 2 weeks by default' '
 332         : >ten &&
 333         git update-index --add ten &&
 334         test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
 335         just_under_2_weeks_ago=$((5-14*86400)) &&
 336         test-tool chmtime =$just_under_2_weeks_ago .git/sharedindex.* &&
 337         : >eleven &&
 338         git update-index --add eleven &&
 339         test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
 340         just_over_2_weeks_ago=$((-1-14*86400)) &&
 341         test-tool chmtime =$just_over_2_weeks_ago .git/sharedindex.* &&
 342         : >twelve &&
 343         git update-index --add twelve &&
 344         test $(ls .git/sharedindex.* | wc -l) -le 2
 345 '
 346
 347 test_expect_success 'check splitIndex.sharedIndexExpire set to 16 days' '
 348         git config splitIndex.sharedIndexExpire "16.days.ago" &&
 349         test-tool chmtime =$just_over_2_weeks_ago .git/sharedindex.* &&
 350         : >thirteen &&
 351         git update-index --add thirteen &&
 352         test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
 353         just_over_16_days_ago=$((-1-16*86400)) &&
 354         test-tool chmtime =$just_over_16_days_ago .git/sharedindex.* &&
 355         : >fourteen &&
 356         git update-index --add fourteen &&
 357         test $(ls .git/sharedindex.* | wc -l) -le 2
 358 '
 359
 360 test_expect_success 'check splitIndex.sharedIndexExpire set to "never" and "now"' '
 361         git config splitIndex.sharedIndexExpire never &&
 362         just_10_years_ago=$((-365*10*86400)) &&
 363         test-tool chmtime =$just_10_years_ago .git/sharedindex.* &&
 364         : >fifteen &&
 365         git update-index --add fifteen &&
 366         test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
 367         git config splitIndex.sharedIndexExpire now &&
 368         just_1_second_ago=-1 &&
 369         test-tool chmtime =$just_1_second_ago .git/sharedindex.* &&
 370         : >sixteen &&
 371         git update-index --add sixteen &&
 372         test $(ls .git/sharedindex.* | wc -l) -le 2
 373 '
 374
 375 while read -r mode modebits
 376 do
 377         test_expect_success POSIXPERM "split index respects core.sharedrepository $mode" '
 378                 # Remove existing shared index files
 379                 git config core.splitIndex false &&
 380                 git update-index --force-remove one &&
 381                 rm -f .git/sharedindex.* &&
 382                 # Create one new shared index file
 383                 git config core.sharedrepository "$mode" &&
 384                 git config core.splitIndex true &&
 385                 : >one &&
 386                 git update-index --add one &&
 387                 echo "$modebits" >expect &&
 388                 test_modebits .git/index >actual &&
 389                 test_cmp expect actual &&
 390                 shared=$(ls .git/sharedindex.*) &&
 391                 case "$shared" in
 392                 *" "*)
 393                         # we have more than one???
 394                         false ;;
 395                 *)
 396                         test_modebits "$shared" >actual &&
 397                         test_cmp expect actual ;;
 398                 esac
 399         '
 400 done <<\EOF
 401 0666 -rw-rw-rw-
 402 0642 -rw-r---w-
 403 EOF
 404
 405 test_expect_success POSIXPERM,SANITY 'graceful handling when splitting index is not allowed' '
 406         test_create_repo ro &&
 407         (
 408                 cd ro &&
 409                 test_commit initial &&
 410                 git update-index --split-index &&
 411                 test -f .git/sharedindex.*
 412         ) &&
 413         cp ro/.git/index new-index &&
 414         test_when_finished "chmod u+w ro/.git" &&
 415         chmod u-w ro/.git &&
 416         GIT_INDEX_FILE="$(pwd)/new-index" git -C ro update-index --split-index &&
 417         chmod u+w ro/.git &&
 418         rm ro/.git/sharedindex.* &&
 419         GIT_INDEX_FILE=new-index git ls-files >actual &&
 420         echo initial.t >expected &&
 421         test_cmp expected actual
 422 '
 423
 424 test_expect_success 'writing split index with null sha1 does not write cache tree' '
 425         git config core.splitIndex true &&
 426         git config splitIndex.maxPercentChange 0 &&
 427         git commit -m "commit" &&
 428         {
 429                 git ls-tree HEAD &&
 430                 printf "160000 commit $ZERO_OID\\tbroken\\n"
 431         } >broken-tree &&
 432         echo "add broken entry" >msg &&
 433
 434         tree=$(git mktree <broken-tree) &&
 435         test_tick &&
 436         commit=$(git commit-tree $tree -p HEAD <msg) &&
 437         git update-ref HEAD "$commit" &&
 438         GIT_ALLOW_NULL_SHA1=1 git reset --hard &&
 439         test_might_fail test-tool dump-cache-tree >cache-tree.out &&
 440         test_line_count = 0 cache-tree.out
 441 '
 442
 443 test_done