| #!/bin/sh |
| |
| test_description='split index mode tests' |
| |
| GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main |
| export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME |
| |
| . ./test-lib.sh |
| |
| # We need total control of index splitting here |
| sane_unset GIT_TEST_SPLIT_INDEX |
| |
| # Testing a hard coded SHA against an index with an extension |
| # that can vary from run to run is problematic so we disable |
| # those extensions. |
| sane_unset GIT_TEST_FSMONITOR |
| sane_unset GIT_TEST_INDEX_THREADS |
| |
| # Create a file named as $1 with content read from stdin. |
| # Set the file's mtime to a few seconds in the past to avoid racy situations. |
| create_non_racy_file () { |
| cat >"$1" && |
| test-tool chmtime =-5 "$1" |
| } |
| |
| test_expect_success 'setup' ' |
| test_oid_cache <<-EOF |
| own_v3 sha1:8299b0bcd1ac364e5f1d7768efb62fa2da79a339 |
| own_v3 sha256:38a6d2925e3eceec33ad7b34cbff4e0086caa0daf28f31e51f5bd94b4a7af86b |
| |
| base_v3 sha1:39d890139ee5356c7ef572216cebcd27aa41f9df |
| base_v3 sha256:c9baeadf905112bf6c17aefbd7d02267afd70ded613c30cafed2d40cb506e1ed |
| |
| own_v4 sha1:432ef4b63f32193984f339431fd50ca796493569 |
| own_v4 sha256:6738ac6319c25b694afa7bcc313deb182d1a59b68bf7a47b4296de83478c0420 |
| |
| base_v4 sha1:508851a7f0dfa8691e9f69c7f055865389012491 |
| base_v4 sha256:3177d4adfdd4b6904f7e921d91d715a471c0dde7cf6a4bba574927f02b699508 |
| EOF |
| ' |
| |
| test_expect_success 'enable split index' ' |
| git config splitIndex.maxPercentChange 100 && |
| git update-index --split-index && |
| test-tool dump-split-index .git/index >actual && |
| indexversion=$(test-tool index-version <.git/index) && |
| |
| # NEEDSWORK: Stop hard-coding checksums. |
| if test "$indexversion" = "4" |
| then |
| own=$(test_oid own_v4) && |
| base=$(test_oid base_v4) |
| else |
| own=$(test_oid own_v3) && |
| base=$(test_oid base_v3) |
| fi && |
| |
| cat >expect <<-EOF && |
| own $own |
| base $base |
| replacements: |
| deletions: |
| EOF |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'add one file' ' |
| create_non_racy_file one && |
| git update-index --add one && |
| git ls-files --stage >ls-files.actual && |
| cat >ls-files.expect <<-EOF && |
| 100644 $EMPTY_BLOB 0 one |
| EOF |
| test_cmp ls-files.expect ls-files.actual && |
| |
| test-tool dump-split-index .git/index | sed "/^own/d" >actual && |
| cat >expect <<-EOF && |
| base $base |
| 100644 $EMPTY_BLOB 0 one |
| replacements: |
| deletions: |
| EOF |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'disable split index' ' |
| git update-index --no-split-index && |
| git ls-files --stage >ls-files.actual && |
| cat >ls-files.expect <<-EOF && |
| 100644 $EMPTY_BLOB 0 one |
| EOF |
| test_cmp ls-files.expect ls-files.actual && |
| |
| BASE=$(test-tool dump-split-index .git/index | sed -n "s/^own/base/p") && |
| test-tool dump-split-index .git/index | sed "/^own/d" >actual && |
| cat >expect <<-EOF && |
| not a split index |
| EOF |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'enable split index again, "one" now belongs to base index"' ' |
| git update-index --split-index && |
| git ls-files --stage >ls-files.actual && |
| cat >ls-files.expect <<-EOF && |
| 100644 $EMPTY_BLOB 0 one |
| EOF |
| test_cmp ls-files.expect ls-files.actual && |
| |
| test-tool dump-split-index .git/index | sed "/^own/d" >actual && |
| cat >expect <<-EOF && |
| $BASE |
| replacements: |
| deletions: |
| EOF |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'modify original file, base index untouched' ' |
| echo modified | create_non_racy_file one && |
| file1_blob=$(git hash-object one) && |
| git update-index one && |
| git ls-files --stage >ls-files.actual && |
| cat >ls-files.expect <<-EOF && |
| 100644 $file1_blob 0 one |
| EOF |
| test_cmp ls-files.expect ls-files.actual && |
| |
| test-tool dump-split-index .git/index | sed "/^own/d" >actual && |
| q_to_tab >expect <<-EOF && |
| $BASE |
| 100644 $file1_blob 0Q |
| replacements: 0 |
| deletions: |
| EOF |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'add another file, which stays index' ' |
| create_non_racy_file two && |
| git update-index --add two && |
| git ls-files --stage >ls-files.actual && |
| cat >ls-files.expect <<-EOF && |
| 100644 $file1_blob 0 one |
| 100644 $EMPTY_BLOB 0 two |
| EOF |
| test_cmp ls-files.expect ls-files.actual && |
| |
| test-tool dump-split-index .git/index | sed "/^own/d" >actual && |
| q_to_tab >expect <<-EOF && |
| $BASE |
| 100644 $file1_blob 0Q |
| 100644 $EMPTY_BLOB 0 two |
| replacements: 0 |
| deletions: |
| EOF |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'remove file not in base index' ' |
| git update-index --force-remove two && |
| git ls-files --stage >ls-files.actual && |
| cat >ls-files.expect <<-EOF && |
| 100644 $file1_blob 0 one |
| EOF |
| test_cmp ls-files.expect ls-files.actual && |
| |
| test-tool dump-split-index .git/index | sed "/^own/d" >actual && |
| q_to_tab >expect <<-EOF && |
| $BASE |
| 100644 $file1_blob 0Q |
| replacements: 0 |
| deletions: |
| EOF |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'remove file in base index' ' |
| git update-index --force-remove one && |
| git ls-files --stage >ls-files.actual && |
| test_must_be_empty ls-files.actual && |
| |
| test-tool dump-split-index .git/index | sed "/^own/d" >actual && |
| cat >expect <<-EOF && |
| $BASE |
| replacements: |
| deletions: 0 |
| EOF |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'add original file back' ' |
| create_non_racy_file one && |
| git update-index --add one && |
| git ls-files --stage >ls-files.actual && |
| cat >ls-files.expect <<-EOF && |
| 100644 $EMPTY_BLOB 0 one |
| EOF |
| test_cmp ls-files.expect ls-files.actual && |
| |
| test-tool dump-split-index .git/index | sed "/^own/d" >actual && |
| cat >expect <<-EOF && |
| $BASE |
| 100644 $EMPTY_BLOB 0 one |
| replacements: |
| deletions: 0 |
| EOF |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'add new file' ' |
| create_non_racy_file two && |
| git update-index --add two && |
| git ls-files --stage >actual && |
| cat >expect <<-EOF && |
| 100644 $EMPTY_BLOB 0 one |
| 100644 $EMPTY_BLOB 0 two |
| EOF |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'unify index, two files remain' ' |
| git update-index --no-split-index && |
| git ls-files --stage >ls-files.actual && |
| cat >ls-files.expect <<-EOF && |
| 100644 $EMPTY_BLOB 0 one |
| 100644 $EMPTY_BLOB 0 two |
| EOF |
| test_cmp ls-files.expect ls-files.actual && |
| |
| test-tool dump-split-index .git/index | sed "/^own/d" >actual && |
| cat >expect <<-EOF && |
| not a split index |
| EOF |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'rev-parse --shared-index-path' ' |
| test_create_repo split-index && |
| ( |
| cd split-index && |
| git update-index --split-index && |
| echo .git/sharedindex* >expect && |
| git rev-parse --shared-index-path >actual && |
| test_cmp expect actual && |
| mkdir subdirectory && |
| cd subdirectory && |
| echo ../.git/sharedindex* >expect && |
| git rev-parse --shared-index-path >actual && |
| test_cmp expect actual |
| ) |
| ' |
| |
| test_expect_success 'set core.splitIndex config variable to true' ' |
| git config core.splitIndex true && |
| create_non_racy_file three && |
| git update-index --add three && |
| git ls-files --stage >ls-files.actual && |
| cat >ls-files.expect <<-EOF && |
| 100644 $EMPTY_BLOB 0 one |
| 100644 $EMPTY_BLOB 0 three |
| 100644 $EMPTY_BLOB 0 two |
| EOF |
| test_cmp ls-files.expect ls-files.actual && |
| BASE=$(test-tool dump-split-index .git/index | grep "^base") && |
| test-tool dump-split-index .git/index | sed "/^own/d" >actual && |
| cat >expect <<-EOF && |
| $BASE |
| replacements: |
| deletions: |
| EOF |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'set core.splitIndex config variable to false' ' |
| git config core.splitIndex false && |
| git update-index --force-remove three && |
| git ls-files --stage >ls-files.actual && |
| cat >ls-files.expect <<-EOF && |
| 100644 $EMPTY_BLOB 0 one |
| 100644 $EMPTY_BLOB 0 two |
| EOF |
| test_cmp ls-files.expect ls-files.actual && |
| test-tool dump-split-index .git/index | sed "/^own/d" >actual && |
| cat >expect <<-EOF && |
| not a split index |
| EOF |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'set core.splitIndex config variable back to true' ' |
| git config core.splitIndex true && |
| create_non_racy_file three && |
| git update-index --add three && |
| BASE=$(test-tool dump-split-index .git/index | grep "^base") && |
| test-tool dump-split-index .git/index | sed "/^own/d" >actual && |
| cat >expect <<-EOF && |
| $BASE |
| replacements: |
| deletions: |
| EOF |
| test_cmp expect actual && |
| create_non_racy_file four && |
| git update-index --add four && |
| test-tool dump-split-index .git/index | sed "/^own/d" >actual && |
| cat >expect <<-EOF && |
| $BASE |
| 100644 $EMPTY_BLOB 0 four |
| replacements: |
| deletions: |
| EOF |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'check behavior with splitIndex.maxPercentChange unset' ' |
| git config --unset splitIndex.maxPercentChange && |
| create_non_racy_file five && |
| git update-index --add five && |
| BASE=$(test-tool dump-split-index .git/index | grep "^base") && |
| test-tool dump-split-index .git/index | sed "/^own/d" >actual && |
| cat >expect <<-EOF && |
| $BASE |
| replacements: |
| deletions: |
| EOF |
| test_cmp expect actual && |
| create_non_racy_file six && |
| git update-index --add six && |
| test-tool dump-split-index .git/index | sed "/^own/d" >actual && |
| cat >expect <<-EOF && |
| $BASE |
| 100644 $EMPTY_BLOB 0 six |
| replacements: |
| deletions: |
| EOF |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'check splitIndex.maxPercentChange set to 0' ' |
| git config splitIndex.maxPercentChange 0 && |
| create_non_racy_file seven && |
| git update-index --add seven && |
| BASE=$(test-tool dump-split-index .git/index | grep "^base") && |
| test-tool dump-split-index .git/index | sed "/^own/d" >actual && |
| cat >expect <<-EOF && |
| $BASE |
| replacements: |
| deletions: |
| EOF |
| test_cmp expect actual && |
| create_non_racy_file eight && |
| git update-index --add eight && |
| BASE=$(test-tool dump-split-index .git/index | grep "^base") && |
| test-tool dump-split-index .git/index | sed "/^own/d" >actual && |
| cat >expect <<-EOF && |
| $BASE |
| replacements: |
| deletions: |
| EOF |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'shared index files expire after 2 weeks by default' ' |
| create_non_racy_file ten && |
| git update-index --add ten && |
| test $(ls .git/sharedindex.* | wc -l) -gt 2 && |
| just_under_2_weeks_ago=$((5-14*86400)) && |
| test-tool chmtime =$just_under_2_weeks_ago .git/sharedindex.* && |
| create_non_racy_file eleven && |
| git update-index --add eleven && |
| test $(ls .git/sharedindex.* | wc -l) -gt 2 && |
| just_over_2_weeks_ago=$((-1-14*86400)) && |
| test-tool chmtime =$just_over_2_weeks_ago .git/sharedindex.* && |
| create_non_racy_file twelve && |
| git update-index --add twelve && |
| test $(ls .git/sharedindex.* | wc -l) -le 2 |
| ' |
| |
| test_expect_success 'check splitIndex.sharedIndexExpire set to 16 days' ' |
| git config splitIndex.sharedIndexExpire "16.days.ago" && |
| test-tool chmtime =$just_over_2_weeks_ago .git/sharedindex.* && |
| create_non_racy_file thirteen && |
| git update-index --add thirteen && |
| test $(ls .git/sharedindex.* | wc -l) -gt 2 && |
| just_over_16_days_ago=$((-1-16*86400)) && |
| test-tool chmtime =$just_over_16_days_ago .git/sharedindex.* && |
| create_non_racy_file fourteen && |
| git update-index --add fourteen && |
| test $(ls .git/sharedindex.* | wc -l) -le 2 |
| ' |
| |
| test_expect_success 'check splitIndex.sharedIndexExpire set to "never" and "now"' ' |
| git config splitIndex.sharedIndexExpire never && |
| just_10_years_ago=$((-365*10*86400)) && |
| test-tool chmtime =$just_10_years_ago .git/sharedindex.* && |
| create_non_racy_file fifteen && |
| git update-index --add fifteen && |
| test $(ls .git/sharedindex.* | wc -l) -gt 2 && |
| git config splitIndex.sharedIndexExpire now && |
| just_1_second_ago=-1 && |
| test-tool chmtime =$just_1_second_ago .git/sharedindex.* && |
| create_non_racy_file sixteen && |
| git update-index --add sixteen && |
| test $(ls .git/sharedindex.* | wc -l) -le 2 |
| ' |
| |
| test_expect_success POSIXPERM 'same mode for index & split index' ' |
| git init same-mode && |
| ( |
| cd same-mode && |
| test_commit A && |
| test_modebits .git/index >index_mode && |
| test_must_fail git config core.sharedRepository && |
| git -c core.splitIndex=true status && |
| shared=$(ls .git/sharedindex.*) && |
| case "$shared" in |
| *" "*) |
| # we have more than one??? |
| false ;; |
| *) |
| test_modebits "$shared" >split_index_mode && |
| test_cmp index_mode split_index_mode ;; |
| esac |
| ) |
| ' |
| |
| while read -r mode modebits |
| do |
| test_expect_success POSIXPERM "split index respects core.sharedrepository $mode" ' |
| # Remove existing shared index files |
| git config core.splitIndex false && |
| git update-index --force-remove one && |
| rm -f .git/sharedindex.* && |
| # Create one new shared index file |
| git config core.sharedrepository "$mode" && |
| git config core.splitIndex true && |
| create_non_racy_file one && |
| git update-index --add one && |
| echo "$modebits" >expect && |
| test_modebits .git/index >actual && |
| test_cmp expect actual && |
| shared=$(ls .git/sharedindex.*) && |
| case "$shared" in |
| *" "*) |
| # we have more than one??? |
| false ;; |
| *) |
| test_modebits "$shared" >actual && |
| test_cmp expect actual ;; |
| esac |
| ' |
| done <<\EOF |
| 0666 -rw-rw-rw- |
| 0642 -rw-r---w- |
| EOF |
| |
| test_expect_success POSIXPERM,SANITY 'graceful handling when splitting index is not allowed' ' |
| test_create_repo ro && |
| ( |
| cd ro && |
| test_commit initial && |
| git update-index --split-index && |
| test -f .git/sharedindex.* |
| ) && |
| cp ro/.git/index new-index && |
| test_when_finished "chmod u+w ro/.git" && |
| chmod u-w ro/.git && |
| GIT_INDEX_FILE="$(pwd)/new-index" git -C ro update-index --split-index && |
| chmod u+w ro/.git && |
| rm ro/.git/sharedindex.* && |
| GIT_INDEX_FILE=new-index git ls-files >actual && |
| echo initial.t >expected && |
| test_cmp expected actual |
| ' |
| |
| test_expect_success 'writing split index with null sha1 does not write cache tree' ' |
| git config core.splitIndex true && |
| git config splitIndex.maxPercentChange 0 && |
| git commit -m "commit" && |
| { |
| git ls-tree HEAD && |
| printf "160000 commit $ZERO_OID\\tbroken\\n" |
| } >broken-tree && |
| echo "add broken entry" >msg && |
| |
| tree=$(git mktree <broken-tree) && |
| test_tick && |
| commit=$(git commit-tree $tree -p HEAD <msg) && |
| git update-ref HEAD "$commit" && |
| GIT_ALLOW_NULL_SHA1=1 git reset --hard && |
| test_might_fail test-tool dump-cache-tree >cache-tree.out && |
| test_line_count = 0 cache-tree.out |
| ' |
| |
| test_expect_success 'do not refresh null base index' ' |
| test_create_repo merge && |
| ( |
| cd merge && |
| test_commit initial && |
| git checkout -b side-branch && |
| test_commit extra && |
| git checkout main && |
| git update-index --split-index && |
| test_commit more && |
| # must not write a new shareindex, or we wont catch the problem |
| git -c splitIndex.maxPercentChange=100 merge --no-edit side-branch 2>err && |
| # i.e. do not expect warnings like |
| # could not freshen shared index .../shareindex.00000... |
| test_must_be_empty err |
| ) |
| ' |
| |
| test_expect_success 'reading split index at alternate location' ' |
| git init reading-alternate-location && |
| ( |
| cd reading-alternate-location && |
| >file-in-alternate && |
| git update-index --split-index --add file-in-alternate |
| ) && |
| echo file-in-alternate >expect && |
| |
| # Should be able to find the shared index both right next to |
| # the specified split index file ... |
| GIT_INDEX_FILE=./reading-alternate-location/.git/index \ |
| git ls-files --cached >actual && |
| test_cmp expect actual && |
| |
| # ... and, for backwards compatibility, in the current GIT_DIR |
| # as well. |
| mv -v ./reading-alternate-location/.git/sharedindex.* .git && |
| GIT_INDEX_FILE=./reading-alternate-location/.git/index \ |
| git ls-files --cached >actual && |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'GIT_TEST_SPLIT_INDEX works' ' |
| git init git-test-split-index && |
| ( |
| cd git-test-split-index && |
| >file && |
| GIT_TEST_SPLIT_INDEX=1 git update-index --add file && |
| ls -l .git/sharedindex.* >actual && |
| test_line_count = 1 actual |
| ) |
| ' |
| |
| test_done |