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