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 sane_unset GIT_FSMONITOR_TEST
  10
  11 test_expect_success 'enable split index' '
  12         git config splitIndex.maxPercentChange 100 &&
  13         git update-index --split-index &&
  14         test-dump-split-index .git/index >actual &&
  15         indexversion=$(test-index-version <.git/index) &&
  16         if test "$indexversion" = "4"
  17         then
  18                 own=432ef4b63f32193984f339431fd50ca796493569
  19                 base=508851a7f0dfa8691e9f69c7f055865389012491
  20         else
  21                 own=8299b0bcd1ac364e5f1d7768efb62fa2da79a339
  22                 base=39d890139ee5356c7ef572216cebcd27aa41f9df
  23         fi &&
  24         cat >expect <<-EOF &&
  25         own $own
  26         base $base
  27         replacements:
  28         deletions:
  29         EOF
  30         test_cmp expect actual
  31 '
  32
  33 test_expect_success 'add one file' '
  34         : >one &&
  35         git update-index --add one &&
  36         git ls-files --stage >ls-files.actual &&
  37         cat >ls-files.expect <<-EOF &&
  38         100644 $EMPTY_BLOB 0    one
  39         EOF
  40         test_cmp ls-files.expect ls-files.actual &&
  41
  42         test-dump-split-index .git/index | sed "/^own/d" >actual &&
  43         cat >expect <<-EOF &&
  44         base $base
  45         100644 $EMPTY_BLOB 0    one
  46         replacements:
  47         deletions:
  48         EOF
  49         test_cmp expect actual
  50 '
  51
  52 test_expect_success 'disable split index' '
  53         git update-index --no-split-index &&
  54         git ls-files --stage >ls-files.actual &&
  55         cat >ls-files.expect <<-EOF &&
  56         100644 $EMPTY_BLOB 0    one
  57         EOF
  58         test_cmp ls-files.expect ls-files.actual &&
  59
  60         BASE=$(test-dump-split-index .git/index | grep "^own" | sed "s/own/base/") &&
  61         test-dump-split-index .git/index | sed "/^own/d" >actual &&
  62         cat >expect <<-EOF &&
  63         not a split index
  64         EOF
  65         test_cmp expect actual
  66 '
  67
  68 test_expect_success 'enable split index again, "one" now belongs to base index"' '
  69         git update-index --split-index &&
  70         git ls-files --stage >ls-files.actual &&
  71         cat >ls-files.expect <<-EOF &&
  72         100644 $EMPTY_BLOB 0    one
  73         EOF
  74         test_cmp ls-files.expect ls-files.actual &&
  75
  76         test-dump-split-index .git/index | sed "/^own/d" >actual &&
  77         cat >expect <<-EOF &&
  78         $BASE
  79         replacements:
  80         deletions:
  81         EOF
  82         test_cmp expect actual
  83 '
  84
  85 test_expect_success 'modify original file, base index untouched' '
  86         echo modified >one &&
  87         git update-index one &&
  88         git ls-files --stage >ls-files.actual &&
  89         cat >ls-files.expect <<-EOF &&
  90         100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0       one
  91         EOF
  92         test_cmp ls-files.expect ls-files.actual &&
  93
  94         test-dump-split-index .git/index | sed "/^own/d" >actual &&
  95         q_to_tab >expect <<-EOF &&
  96         $BASE
  97         100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
  98         replacements: 0
  99         deletions:
 100         EOF
 101         test_cmp expect actual
 102 '
 103
 104 test_expect_success 'add another file, which stays index' '
 105         : >two &&
 106         git update-index --add two &&
 107         git ls-files --stage >ls-files.actual &&
 108         cat >ls-files.expect <<-EOF &&
 109         100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0       one
 110         100644 $EMPTY_BLOB 0    two
 111         EOF
 112         test_cmp ls-files.expect ls-files.actual &&
 113
 114         test-dump-split-index .git/index | sed "/^own/d" >actual &&
 115         q_to_tab >expect <<-EOF &&
 116         $BASE
 117         100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
 118         100644 $EMPTY_BLOB 0    two
 119         replacements: 0
 120         deletions:
 121         EOF
 122         test_cmp expect actual
 123 '
 124
 125 test_expect_success 'remove file not in base index' '
 126         git update-index --force-remove two &&
 127         git ls-files --stage >ls-files.actual &&
 128         cat >ls-files.expect <<-EOF &&
 129         100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0       one
 130         EOF
 131         test_cmp ls-files.expect ls-files.actual &&
 132
 133         test-dump-split-index .git/index | sed "/^own/d" >actual &&
 134         q_to_tab >expect <<-EOF &&
 135         $BASE
 136         100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
 137         replacements: 0
 138         deletions:
 139         EOF
 140         test_cmp expect actual
 141 '
 142
 143 test_expect_success 'remove file in base index' '
 144         git update-index --force-remove one &&
 145         git ls-files --stage >ls-files.actual &&
 146         cat >ls-files.expect <<-EOF &&
 147         EOF
 148         test_cmp ls-files.expect ls-files.actual &&
 149
 150         test-dump-split-index .git/index | sed "/^own/d" >actual &&
 151         cat >expect <<-EOF &&
 152         $BASE
 153         replacements:
 154         deletions: 0
 155         EOF
 156         test_cmp expect actual
 157 '
 158
 159 test_expect_success 'add original file back' '
 160         : >one &&
 161         git update-index --add one &&
 162         git ls-files --stage >ls-files.actual &&
 163         cat >ls-files.expect <<-EOF &&
 164         100644 $EMPTY_BLOB 0    one
 165         EOF
 166         test_cmp ls-files.expect ls-files.actual &&
 167
 168         test-dump-split-index .git/index | sed "/^own/d" >actual &&
 169         cat >expect <<-EOF &&
 170         $BASE
 171         100644 $EMPTY_BLOB 0    one
 172         replacements:
 173         deletions: 0
 174         EOF
 175         test_cmp expect actual
 176 '
 177
 178 test_expect_success 'add new file' '
 179         : >two &&
 180         git update-index --add two &&
 181         git ls-files --stage >actual &&
 182         cat >expect <<-EOF &&
 183         100644 $EMPTY_BLOB 0    one
 184         100644 $EMPTY_BLOB 0    two
 185         EOF
 186         test_cmp expect actual
 187 '
 188
 189 test_expect_success 'unify index, two files remain' '
 190         git update-index --no-split-index &&
 191         git ls-files --stage >ls-files.actual &&
 192         cat >ls-files.expect <<-EOF &&
 193         100644 $EMPTY_BLOB 0    one
 194         100644 $EMPTY_BLOB 0    two
 195         EOF
 196         test_cmp ls-files.expect ls-files.actual &&
 197
 198         test-dump-split-index .git/index | sed "/^own/d" >actual &&
 199         cat >expect <<-EOF &&
 200         not a split index
 201         EOF
 202         test_cmp expect actual
 203 '
 204
 205 test_expect_success 'rev-parse --shared-index-path' '
 206         test_create_repo split-index &&
 207         (
 208                 cd split-index &&
 209                 git update-index --split-index &&
 210                 echo .git/sharedindex* >expect &&
 211                 git rev-parse --shared-index-path >actual &&
 212                 test_cmp expect actual &&
 213                 mkdir subdirectory &&
 214                 cd subdirectory &&
 215                 echo ../.git/sharedindex* >expect &&
 216                 git rev-parse --shared-index-path >actual &&
 217                 test_cmp expect actual
 218         )
 219 '
 220
 221 test_expect_success 'set core.splitIndex config variable to true' '
 222         git config core.splitIndex true &&
 223         : >three &&
 224         git update-index --add three &&
 225         git ls-files --stage >ls-files.actual &&
 226         cat >ls-files.expect <<-EOF &&
 227         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       one
 228         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       three
 229         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       two
 230         EOF
 231         test_cmp ls-files.expect ls-files.actual &&
 232         BASE=$(test-dump-split-index .git/index | grep "^base") &&
 233         test-dump-split-index .git/index | sed "/^own/d" >actual &&
 234         cat >expect <<-EOF &&
 235         $BASE
 236         replacements:
 237         deletions:
 238         EOF
 239         test_cmp expect actual
 240 '
 241
 242 test_expect_success 'set core.splitIndex config variable to false' '
 243         git config core.splitIndex false &&
 244         git update-index --force-remove three &&
 245         git ls-files --stage >ls-files.actual &&
 246         cat >ls-files.expect <<-EOF &&
 247         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       one
 248         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       two
 249         EOF
 250         test_cmp ls-files.expect ls-files.actual &&
 251         test-dump-split-index .git/index | sed "/^own/d" >actual &&
 252         cat >expect <<-EOF &&
 253         not a split index
 254         EOF
 255         test_cmp expect actual
 256 '
 257
 258 test_expect_success 'set core.splitIndex config variable to true' '
 259         git config core.splitIndex true &&
 260         : >three &&
 261         git update-index --add three &&
 262         BASE=$(test-dump-split-index .git/index | grep "^base") &&
 263         test-dump-split-index .git/index | sed "/^own/d" >actual &&
 264         cat >expect <<-EOF &&
 265         $BASE
 266         replacements:
 267         deletions:
 268         EOF
 269         test_cmp expect actual &&
 270         : >four &&
 271         git update-index --add four &&
 272         test-dump-split-index .git/index | sed "/^own/d" >actual &&
 273         cat >expect <<-EOF &&
 274         $BASE
 275         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       four
 276         replacements:
 277         deletions:
 278         EOF
 279         test_cmp expect actual
 280 '
 281
 282 test_expect_success 'check behavior with splitIndex.maxPercentChange unset' '
 283         git config --unset splitIndex.maxPercentChange &&
 284         : >five &&
 285         git update-index --add five &&
 286         BASE=$(test-dump-split-index .git/index | grep "^base") &&
 287         test-dump-split-index .git/index | sed "/^own/d" >actual &&
 288         cat >expect <<-EOF &&
 289         $BASE
 290         replacements:
 291         deletions:
 292         EOF
 293         test_cmp expect actual &&
 294         : >six &&
 295         git update-index --add six &&
 296         test-dump-split-index .git/index | sed "/^own/d" >actual &&
 297         cat >expect <<-EOF &&
 298         $BASE
 299         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       six
 300         replacements:
 301         deletions:
 302         EOF
 303         test_cmp expect actual
 304 '
 305
 306 test_expect_success 'check splitIndex.maxPercentChange set to 0' '
 307         git config splitIndex.maxPercentChange 0 &&
 308         : >seven &&
 309         git update-index --add seven &&
 310         BASE=$(test-dump-split-index .git/index | grep "^base") &&
 311         test-dump-split-index .git/index | sed "/^own/d" >actual &&
 312         cat >expect <<-EOF &&
 313         $BASE
 314         replacements:
 315         deletions:
 316         EOF
 317         test_cmp expect actual &&
 318         : >eight &&
 319         git update-index --add eight &&
 320         BASE=$(test-dump-split-index .git/index | grep "^base") &&
 321         test-dump-split-index .git/index | sed "/^own/d" >actual &&
 322         cat >expect <<-EOF &&
 323         $BASE
 324         replacements:
 325         deletions:
 326         EOF
 327         test_cmp expect actual
 328 '
 329
 330 test_expect_success 'shared index files expire after 2 weeks by default' '
 331         : >ten &&
 332         git update-index --add ten &&
 333         test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
 334         just_under_2_weeks_ago=$((5-14*86400)) &&
 335         test-chmtime =$just_under_2_weeks_ago .git/sharedindex.* &&
 336         : >eleven &&
 337         git update-index --add eleven &&
 338         test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
 339         just_over_2_weeks_ago=$((-1-14*86400)) &&
 340         test-chmtime =$just_over_2_weeks_ago .git/sharedindex.* &&
 341         : >twelve &&
 342         git update-index --add twelve &&
 343         test $(ls .git/sharedindex.* | wc -l) -le 2
 344 '
 345
 346 test_expect_success 'check splitIndex.sharedIndexExpire set to 16 days' '
 347         git config splitIndex.sharedIndexExpire "16.days.ago" &&
 348         test-chmtime =$just_over_2_weeks_ago .git/sharedindex.* &&
 349         : >thirteen &&
 350         git update-index --add thirteen &&
 351         test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
 352         just_over_16_days_ago=$((-1-16*86400)) &&
 353         test-chmtime =$just_over_16_days_ago .git/sharedindex.* &&
 354         : >fourteen &&
 355         git update-index --add fourteen &&
 356         test $(ls .git/sharedindex.* | wc -l) -le 2
 357 '
 358
 359 test_expect_success 'check splitIndex.sharedIndexExpire set to "never" and "now"' '
 360         git config splitIndex.sharedIndexExpire never &&
 361         just_10_years_ago=$((-365*10*86400)) &&
 362         test-chmtime =$just_10_years_ago .git/sharedindex.* &&
 363         : >fifteen &&
 364         git update-index --add fifteen &&
 365         test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
 366         git config splitIndex.sharedIndexExpire now &&
 367         just_1_second_ago=-1 &&
 368         test-chmtime =$just_1_second_ago .git/sharedindex.* &&
 369         : >sixteen &&
 370         git update-index --add sixteen &&
 371         test $(ls .git/sharedindex.* | wc -l) -le 2
 372 '
 373
 374 while read -r mode modebits
 375 do
 376         test_expect_success POSIXPERM "split index respects core.sharedrepository $mode" '
 377                 # Remove existing shared index files
 378                 git config core.splitIndex false &&
 379                 git update-index --force-remove one &&
 380                 rm -f .git/sharedindex.* &&
 381                 # Create one new shared index file
 382                 git config core.sharedrepository "$mode" &&
 383                 git config core.splitIndex true &&
 384                 : >one &&
 385                 git update-index --add one &&
 386                 echo "$modebits" >expect &&
 387                 test_modebits .git/index >actual &&
 388                 test_cmp expect actual &&
 389                 shared=$(ls .git/sharedindex.*) &&
 390                 case "$shared" in
 391                 *" "*)
 392                         # we have more than one???
 393                         false ;;
 394                 *)
 395                         test_modebits "$shared" >actual &&
 396                         test_cmp expect actual ;;
 397                 esac
 398         '
 399 done <<\EOF
 400 0666 -rw-rw-rw-
 401 0642 -rw-r---w-
 402 EOF
 403
 404 test_expect_success POSIXPERM,SANITY 'graceful handling when splitting index is not allowed' '
 405         test_create_repo ro &&
 406         (
 407                 cd ro &&
 408                 test_commit initial &&
 409                 git update-index --split-index &&
 410                 test -f .git/sharedindex.*
 411         ) &&
 412         cp ro/.git/index new-index &&
 413         test_when_finished "chmod u+w ro/.git" &&
 414         chmod u-w ro/.git &&
 415         GIT_INDEX_FILE="$(pwd)/new-index" git -C ro update-index --split-index &&
 416         chmod u+w ro/.git &&
 417         rm ro/.git/sharedindex.* &&
 418         GIT_INDEX_FILE=new-index git ls-files >actual &&
 419         echo initial.t >expected &&
 420         test_cmp expected actual
 421 '
 422
 423 test_expect_success 'writing split index with null sha1 does not write cache tree' '
 424         git config core.splitIndex true &&
 425         git config splitIndex.maxPercentChange 0 &&
 426         git commit -m "commit" &&
 427         {
 428                 git ls-tree HEAD &&
 429                 printf "160000 commit $_z40\\tbroken\\n"
 430         } >broken-tree &&
 431         echo "add broken entry" >msg &&
 432
 433         tree=$(git mktree <broken-tree) &&
 434         test_tick &&
 435         commit=$(git commit-tree $tree -p HEAD <msg) &&
 436         git update-ref HEAD "$commit" &&
 437         GIT_ALLOW_NULL_SHA1=1 git reset --hard &&
 438         (test-dump-cache-tree >cache-tree.out || true) &&
 439         test_line_count = 0 cache-tree.out
 440 '
 441
 442 test_done