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-tool dump-split-index .git/index >actual &&
  15         indexversion=$(test-tool index-version <.git/index) &&
  16         if test "$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-tool 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-tool dump-split-index .git/index | grep "^own" | sed "s/own/base/") &&
  61         test-tool 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-tool 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-tool 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-tool 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-tool 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         test_must_be_empty ls-files.actual &&
 147
 148         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 149         cat >expect <<-EOF &&
 150         $BASE
 151         replacements:
 152         deletions: 0
 153         EOF
 154         test_cmp expect actual
 155 '
 156
 157 test_expect_success 'add original file back' '
 158         : >one &&
 159         git update-index --add one &&
 160         git ls-files --stage >ls-files.actual &&
 161         cat >ls-files.expect <<-EOF &&
 162         100644 $EMPTY_BLOB 0    one
 163         EOF
 164         test_cmp ls-files.expect ls-files.actual &&
 165
 166         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 167         cat >expect <<-EOF &&
 168         $BASE
 169         100644 $EMPTY_BLOB 0    one
 170         replacements:
 171         deletions: 0
 172         EOF
 173         test_cmp expect actual
 174 '
 175
 176 test_expect_success 'add new file' '
 177         : >two &&
 178         git update-index --add two &&
 179         git ls-files --stage >actual &&
 180         cat >expect <<-EOF &&
 181         100644 $EMPTY_BLOB 0    one
 182         100644 $EMPTY_BLOB 0    two
 183         EOF
 184         test_cmp expect actual
 185 '
 186
 187 test_expect_success 'unify index, two files remain' '
 188         git update-index --no-split-index &&
 189         git ls-files --stage >ls-files.actual &&
 190         cat >ls-files.expect <<-EOF &&
 191         100644 $EMPTY_BLOB 0    one
 192         100644 $EMPTY_BLOB 0    two
 193         EOF
 194         test_cmp ls-files.expect ls-files.actual &&
 195
 196         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 197         cat >expect <<-EOF &&
 198         not a split index
 199         EOF
 200         test_cmp expect actual
 201 '
 202
 203 test_expect_success 'rev-parse --shared-index-path' '
 204         test_create_repo split-index &&
 205         (
 206                 cd split-index &&
 207                 git update-index --split-index &&
 208                 echo .git/sharedindex* >expect &&
 209                 git rev-parse --shared-index-path >actual &&
 210                 test_cmp expect actual &&
 211                 mkdir subdirectory &&
 212                 cd subdirectory &&
 213                 echo ../.git/sharedindex* >expect &&
 214                 git rev-parse --shared-index-path >actual &&
 215                 test_cmp expect actual
 216         )
 217 '
 218
 219 test_expect_success 'set core.splitIndex config variable to true' '
 220         git config core.splitIndex true &&
 221         : >three &&
 222         git update-index --add three &&
 223         git ls-files --stage >ls-files.actual &&
 224         cat >ls-files.expect <<-EOF &&
 225         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       one
 226         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       three
 227         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       two
 228         EOF
 229         test_cmp ls-files.expect ls-files.actual &&
 230         BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
 231         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 232         cat >expect <<-EOF &&
 233         $BASE
 234         replacements:
 235         deletions:
 236         EOF
 237         test_cmp expect actual
 238 '
 239
 240 test_expect_success 'set core.splitIndex config variable to false' '
 241         git config core.splitIndex false &&
 242         git update-index --force-remove three &&
 243         git ls-files --stage >ls-files.actual &&
 244         cat >ls-files.expect <<-EOF &&
 245         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       one
 246         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       two
 247         EOF
 248         test_cmp ls-files.expect ls-files.actual &&
 249         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 250         cat >expect <<-EOF &&
 251         not a split index
 252         EOF
 253         test_cmp expect actual
 254 '
 255
 256 test_expect_success 'set core.splitIndex config variable to true' '
 257         git config core.splitIndex true &&
 258         : >three &&
 259         git update-index --add three &&
 260         BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
 261         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 262         cat >expect <<-EOF &&
 263         $BASE
 264         replacements:
 265         deletions:
 266         EOF
 267         test_cmp expect actual &&
 268         : >four &&
 269         git update-index --add four &&
 270         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 271         cat >expect <<-EOF &&
 272         $BASE
 273         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       four
 274         replacements:
 275         deletions:
 276         EOF
 277         test_cmp expect actual
 278 '
 279
 280 test_expect_success 'check behavior with splitIndex.maxPercentChange unset' '
 281         git config --unset splitIndex.maxPercentChange &&
 282         : >five &&
 283         git update-index --add five &&
 284         BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
 285         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 286         cat >expect <<-EOF &&
 287         $BASE
 288         replacements:
 289         deletions:
 290         EOF
 291         test_cmp expect actual &&
 292         : >six &&
 293         git update-index --add six &&
 294         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 295         cat >expect <<-EOF &&
 296         $BASE
 297         100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0       six
 298         replacements:
 299         deletions:
 300         EOF
 301         test_cmp expect actual
 302 '
 303
 304 test_expect_success 'check splitIndex.maxPercentChange set to 0' '
 305         git config splitIndex.maxPercentChange 0 &&
 306         : >seven &&
 307         git update-index --add seven &&
 308         BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
 309         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 310         cat >expect <<-EOF &&
 311         $BASE
 312         replacements:
 313         deletions:
 314         EOF
 315         test_cmp expect actual &&
 316         : >eight &&
 317         git update-index --add eight &&
 318         BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
 319         test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
 320         cat >expect <<-EOF &&
 321         $BASE
 322         replacements:
 323         deletions:
 324         EOF
 325         test_cmp expect actual
 326 '
 327
 328 test_expect_success 'shared index files expire after 2 weeks by default' '
 329         : >ten &&
 330         git update-index --add ten &&
 331         test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
 332         just_under_2_weeks_ago=$((5-14*86400)) &&
 333         test-tool chmtime =$just_under_2_weeks_ago .git/sharedindex.* &&
 334         : >eleven &&
 335         git update-index --add eleven &&
 336         test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
 337         just_over_2_weeks_ago=$((-1-14*86400)) &&
 338         test-tool chmtime =$just_over_2_weeks_ago .git/sharedindex.* &&
 339         : >twelve &&
 340         git update-index --add twelve &&
 341         test $(ls .git/sharedindex.* | wc -l) -le 2
 342 '
 343
 344 test_expect_success 'check splitIndex.sharedIndexExpire set to 16 days' '
 345         git config splitIndex.sharedIndexExpire "16.days.ago" &&
 346         test-tool chmtime =$just_over_2_weeks_ago .git/sharedindex.* &&
 347         : >thirteen &&
 348         git update-index --add thirteen &&
 349         test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
 350         just_over_16_days_ago=$((-1-16*86400)) &&
 351         test-tool chmtime =$just_over_16_days_ago .git/sharedindex.* &&
 352         : >fourteen &&
 353         git update-index --add fourteen &&
 354         test $(ls .git/sharedindex.* | wc -l) -le 2
 355 '
 356
 357 test_expect_success 'check splitIndex.sharedIndexExpire set to "never" and "now"' '
 358         git config splitIndex.sharedIndexExpire never &&
 359         just_10_years_ago=$((-365*10*86400)) &&
 360         test-tool chmtime =$just_10_years_ago .git/sharedindex.* &&
 361         : >fifteen &&
 362         git update-index --add fifteen &&
 363         test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
 364         git config splitIndex.sharedIndexExpire now &&
 365         just_1_second_ago=-1 &&
 366         test-tool chmtime =$just_1_second_ago .git/sharedindex.* &&
 367         : >sixteen &&
 368         git update-index --add sixteen &&
 369         test $(ls .git/sharedindex.* | wc -l) -le 2
 370 '
 371
 372 while read -r mode modebits
 373 do
 374         test_expect_success POSIXPERM "split index respects core.sharedrepository $mode" '
 375                 # Remove existing shared index files
 376                 git config core.splitIndex false &&
 377                 git update-index --force-remove one &&
 378                 rm -f .git/sharedindex.* &&
 379                 # Create one new shared index file
 380                 git config core.sharedrepository "$mode" &&
 381                 git config core.splitIndex true &&
 382                 : >one &&
 383                 git update-index --add one &&
 384                 echo "$modebits" >expect &&
 385                 test_modebits .git/index >actual &&
 386                 test_cmp expect actual &&
 387                 shared=$(ls .git/sharedindex.*) &&
 388                 case "$shared" in
 389                 *" "*)
 390                         # we have more than one???
 391                         false ;;
 392                 *)
 393                         test_modebits "$shared" >actual &&
 394                         test_cmp expect actual ;;
 395                 esac
 396         '
 397 done <<\EOF
 398 0666 -rw-rw-rw-
 399 0642 -rw-r---w-
 400 EOF
 401
 402 test_expect_success POSIXPERM,SANITY 'graceful handling when splitting index is not allowed' '
 403         test_create_repo ro &&
 404         (
 405                 cd ro &&
 406                 test_commit initial &&
 407                 git update-index --split-index &&
 408                 test -f .git/sharedindex.*
 409         ) &&
 410         cp ro/.git/index new-index &&
 411         test_when_finished "chmod u+w ro/.git" &&
 412         chmod u-w ro/.git &&
 413         GIT_INDEX_FILE="$(pwd)/new-index" git -C ro update-index --split-index &&
 414         chmod u+w ro/.git &&
 415         rm ro/.git/sharedindex.* &&
 416         GIT_INDEX_FILE=new-index git ls-files >actual &&
 417         echo initial.t >expected &&
 418         test_cmp expected actual
 419 '
 420
 421 test_expect_success 'writing split index with null sha1 does not write cache tree' '
 422         git config core.splitIndex true &&
 423         git config splitIndex.maxPercentChange 0 &&
 424         git commit -m "commit" &&
 425         {
 426                 git ls-tree HEAD &&
 427                 printf "160000 commit $ZERO_OID\\tbroken\\n"
 428         } >broken-tree &&
 429         echo "add broken entry" >msg &&
 430
 431         tree=$(git mktree <broken-tree) &&
 432         test_tick &&
 433         commit=$(git commit-tree $tree -p HEAD <msg) &&
 434         git update-ref HEAD "$commit" &&
 435         GIT_ALLOW_NULL_SHA1=1 git reset --hard &&
 436         test_might_fail test-tool dump-cache-tree >cache-tree.out &&
 437         test_line_count = 0 cache-tree.out
 438 '
 439
 440 test_done