01f8d5948a
To future-proof ourselves against a change in the hash, let's use the more generic "hash mismatch" to refer to integrity problems. Note that we do advertise this exact string in git-fsck(1). However, the message itself is marked for translation, meaning we do not expect it to be machine-readable. While we're touching that documentation, let's also update it for grammar and clarity. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
815 lines
24 KiB
Bash
Executable File
815 lines
24 KiB
Bash
Executable File
#!/bin/sh
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test_description='git fsck random collection of tests
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* (HEAD) B
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* (master) A
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'
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. ./test-lib.sh
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test_expect_success setup '
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git config gc.auto 0 &&
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git config i18n.commitencoding ISO-8859-1 &&
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test_commit A fileA one &&
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git config --unset i18n.commitencoding &&
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git checkout HEAD^0 &&
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test_commit B fileB two &&
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git tag -d A B &&
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git reflog expire --expire=now --all
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'
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test_expect_success 'loose objects borrowed from alternate are not missing' '
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mkdir another &&
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(
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cd another &&
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git init &&
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echo ../../../.git/objects >.git/objects/info/alternates &&
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test_commit C fileC one &&
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git fsck --no-dangling >../actual 2>&1
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) &&
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test_must_be_empty actual
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'
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test_expect_success 'HEAD is part of refs, valid objects appear valid' '
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git fsck >actual 2>&1 &&
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test_must_be_empty actual
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'
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# Corruption tests follow. Make sure to remove all traces of the
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# specific corruption you test afterwards, lest a later test trip over
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# it.
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test_expect_success 'setup: helpers for corruption tests' '
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sha1_file() {
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remainder=${1#??} &&
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firsttwo=${1%$remainder} &&
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echo ".git/objects/$firsttwo/$remainder"
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} &&
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remove_object() {
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rm "$(sha1_file "$1")"
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}
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'
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test_expect_success 'object with bad sha1' '
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sha=$(echo blob | git hash-object -w --stdin) &&
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old=$(echo $sha | sed "s+^..+&/+") &&
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new=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&
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sha="$(dirname $new)$(basename $new)" &&
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mv .git/objects/$old .git/objects/$new &&
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test_when_finished "remove_object $sha" &&
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git update-index --add --cacheinfo 100644 $sha foo &&
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test_when_finished "git read-tree -u --reset HEAD" &&
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tree=$(git write-tree) &&
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test_when_finished "remove_object $tree" &&
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cmt=$(echo bogus | git commit-tree $tree) &&
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test_when_finished "remove_object $cmt" &&
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git update-ref refs/heads/bogus $cmt &&
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test_when_finished "git update-ref -d refs/heads/bogus" &&
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test_must_fail git fsck 2>out &&
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cat out &&
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test_i18ngrep "$sha.*corrupt" out
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'
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test_expect_success 'branch pointing to non-commit' '
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git rev-parse HEAD^{tree} >.git/refs/heads/invalid &&
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test_when_finished "git update-ref -d refs/heads/invalid" &&
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test_must_fail git fsck 2>out &&
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cat out &&
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test_i18ngrep "not a commit" out
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'
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test_expect_success 'HEAD link pointing at a funny object' '
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test_when_finished "mv .git/SAVED_HEAD .git/HEAD" &&
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mv .git/HEAD .git/SAVED_HEAD &&
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echo 0000000000000000000000000000000000000000 >.git/HEAD &&
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# avoid corrupt/broken HEAD from interfering with repo discovery
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test_must_fail env GIT_DIR=.git git fsck 2>out &&
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cat out &&
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test_i18ngrep "detached HEAD points" out
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'
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test_expect_success 'HEAD link pointing at a funny place' '
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test_when_finished "mv .git/SAVED_HEAD .git/HEAD" &&
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mv .git/HEAD .git/SAVED_HEAD &&
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echo "ref: refs/funny/place" >.git/HEAD &&
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# avoid corrupt/broken HEAD from interfering with repo discovery
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test_must_fail env GIT_DIR=.git git fsck 2>out &&
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cat out &&
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test_i18ngrep "HEAD points to something strange" out
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'
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test_expect_success 'HEAD link pointing at a funny object (from different wt)' '
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test_when_finished "mv .git/SAVED_HEAD .git/HEAD" &&
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test_when_finished "rm -rf .git/worktrees wt" &&
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git worktree add wt &&
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mv .git/HEAD .git/SAVED_HEAD &&
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echo $ZERO_OID >.git/HEAD &&
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# avoid corrupt/broken HEAD from interfering with repo discovery
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test_must_fail git -C wt fsck 2>out &&
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test_i18ngrep "main-worktree/HEAD: detached HEAD points" out
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'
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test_expect_success 'other worktree HEAD link pointing at a funny object' '
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test_when_finished "rm -rf .git/worktrees other" &&
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git worktree add other &&
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echo $ZERO_OID >.git/worktrees/other/HEAD &&
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test_must_fail git fsck 2>out &&
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test_i18ngrep "worktrees/other/HEAD: detached HEAD points" out
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'
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test_expect_success 'other worktree HEAD link pointing at missing object' '
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test_when_finished "rm -rf .git/worktrees other" &&
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git worktree add other &&
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echo "Contents missing from repo" | git hash-object --stdin >.git/worktrees/other/HEAD &&
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test_must_fail git fsck 2>out &&
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test_i18ngrep "worktrees/other/HEAD: invalid sha1 pointer" out
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'
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test_expect_success 'other worktree HEAD link pointing at a funny place' '
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test_when_finished "rm -rf .git/worktrees other" &&
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git worktree add other &&
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echo "ref: refs/funny/place" >.git/worktrees/other/HEAD &&
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test_must_fail git fsck 2>out &&
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test_i18ngrep "worktrees/other/HEAD points to something strange" out
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'
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test_expect_success 'email without @ is okay' '
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git cat-file commit HEAD >basis &&
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sed "s/@/AT/" basis >okay &&
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new=$(git hash-object -t commit -w --stdin <okay) &&
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test_when_finished "remove_object $new" &&
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git update-ref refs/heads/bogus "$new" &&
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test_when_finished "git update-ref -d refs/heads/bogus" &&
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git fsck 2>out &&
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cat out &&
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! grep "commit $new" out
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'
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test_expect_success 'email with embedded > is not okay' '
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git cat-file commit HEAD >basis &&
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sed "s/@[a-z]/&>/" basis >bad-email &&
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new=$(git hash-object -t commit -w --stdin <bad-email) &&
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test_when_finished "remove_object $new" &&
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git update-ref refs/heads/bogus "$new" &&
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test_when_finished "git update-ref -d refs/heads/bogus" &&
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test_must_fail git fsck 2>out &&
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cat out &&
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test_i18ngrep "error in commit $new" out
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'
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test_expect_success 'missing < email delimiter is reported nicely' '
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git cat-file commit HEAD >basis &&
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sed "s/<//" basis >bad-email-2 &&
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new=$(git hash-object -t commit -w --stdin <bad-email-2) &&
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test_when_finished "remove_object $new" &&
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git update-ref refs/heads/bogus "$new" &&
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test_when_finished "git update-ref -d refs/heads/bogus" &&
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test_must_fail git fsck 2>out &&
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cat out &&
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test_i18ngrep "error in commit $new.* - bad name" out
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'
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test_expect_success 'missing email is reported nicely' '
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git cat-file commit HEAD >basis &&
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sed "s/[a-z]* <[^>]*>//" basis >bad-email-3 &&
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new=$(git hash-object -t commit -w --stdin <bad-email-3) &&
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test_when_finished "remove_object $new" &&
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git update-ref refs/heads/bogus "$new" &&
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test_when_finished "git update-ref -d refs/heads/bogus" &&
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test_must_fail git fsck 2>out &&
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cat out &&
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test_i18ngrep "error in commit $new.* - missing email" out
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'
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test_expect_success '> in name is reported' '
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git cat-file commit HEAD >basis &&
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sed "s/ </> </" basis >bad-email-4 &&
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new=$(git hash-object -t commit -w --stdin <bad-email-4) &&
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test_when_finished "remove_object $new" &&
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git update-ref refs/heads/bogus "$new" &&
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test_when_finished "git update-ref -d refs/heads/bogus" &&
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test_must_fail git fsck 2>out &&
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cat out &&
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test_i18ngrep "error in commit $new" out
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'
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# date is 2^64 + 1
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test_expect_success 'integer overflow in timestamps is reported' '
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git cat-file commit HEAD >basis &&
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sed "s/^\\(author .*>\\) [0-9]*/\\1 18446744073709551617/" \
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<basis >bad-timestamp &&
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new=$(git hash-object -t commit -w --stdin <bad-timestamp) &&
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test_when_finished "remove_object $new" &&
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git update-ref refs/heads/bogus "$new" &&
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test_when_finished "git update-ref -d refs/heads/bogus" &&
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test_must_fail git fsck 2>out &&
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cat out &&
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test_i18ngrep "error in commit $new.*integer overflow" out
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'
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test_expect_success 'commit with NUL in header' '
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git cat-file commit HEAD >basis &&
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sed "s/author ./author Q/" <basis | q_to_nul >commit-NUL-header &&
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new=$(git hash-object -t commit -w --stdin <commit-NUL-header) &&
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test_when_finished "remove_object $new" &&
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git update-ref refs/heads/bogus "$new" &&
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test_when_finished "git update-ref -d refs/heads/bogus" &&
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test_must_fail git fsck 2>out &&
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cat out &&
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test_i18ngrep "error in commit $new.*unterminated header: NUL at offset" out
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'
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test_expect_success 'tree object with duplicate entries' '
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test_when_finished "for i in \$T; do remove_object \$i; done" &&
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T=$(
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GIT_INDEX_FILE=test-index &&
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export GIT_INDEX_FILE &&
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rm -f test-index &&
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>x &&
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git add x &&
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git rev-parse :x &&
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T=$(git write-tree) &&
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echo $T &&
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(
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git cat-file tree $T &&
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git cat-file tree $T
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) |
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git hash-object -w -t tree --stdin
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) &&
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test_must_fail git fsck 2>out &&
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test_i18ngrep "error in tree .*contains duplicate file entries" out
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'
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test_expect_success 'unparseable tree object' '
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test_when_finished "git update-ref -d refs/heads/wrong" &&
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test_when_finished "remove_object \$tree_sha1" &&
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test_when_finished "remove_object \$commit_sha1" &&
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tree_sha1=$(printf "100644 \0twenty-bytes-of-junk" | git hash-object -t tree --stdin -w --literally) &&
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commit_sha1=$(git commit-tree $tree_sha1) &&
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git update-ref refs/heads/wrong $commit_sha1 &&
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test_must_fail git fsck 2>out &&
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test_i18ngrep "error: empty filename in tree entry" out &&
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test_i18ngrep "$tree_sha1" out &&
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test_i18ngrep ! "fatal: empty filename in tree entry" out
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'
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hex2oct() {
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perl -ne 'printf "\\%03o", hex for /../g'
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}
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test_expect_success 'tree entry with type mismatch' '
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test_when_finished "remove_object \$blob" &&
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test_when_finished "remove_object \$tree" &&
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test_when_finished "remove_object \$commit" &&
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test_when_finished "git update-ref -d refs/heads/type_mismatch" &&
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blob=$(echo blob | git hash-object -w --stdin) &&
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blob_bin=$(echo $blob | hex2oct) &&
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tree=$(
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printf "40000 dir\0${blob_bin}100644 file\0${blob_bin}" |
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git hash-object -t tree --stdin -w --literally
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) &&
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commit=$(git commit-tree $tree) &&
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git update-ref refs/heads/type_mismatch $commit &&
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test_must_fail git fsck >out 2>&1 &&
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test_i18ngrep "is a blob, not a tree" out &&
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test_i18ngrep ! "dangling blob" out
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'
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test_expect_success 'tag pointing to nonexistent' '
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cat >invalid-tag <<-\EOF &&
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object ffffffffffffffffffffffffffffffffffffffff
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type commit
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tag invalid
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tagger T A Gger <tagger@example.com> 1234567890 -0000
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This is an invalid tag.
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EOF
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tag=$(git hash-object -t tag -w --stdin <invalid-tag) &&
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test_when_finished "remove_object $tag" &&
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echo $tag >.git/refs/tags/invalid &&
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test_when_finished "git update-ref -d refs/tags/invalid" &&
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test_must_fail git fsck --tags >out &&
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cat out &&
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test_i18ngrep "broken link" out
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'
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test_expect_success 'tag pointing to something else than its type' '
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sha=$(echo blob | git hash-object -w --stdin) &&
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test_when_finished "remove_object $sha" &&
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cat >wrong-tag <<-EOF &&
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object $sha
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type commit
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tag wrong
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tagger T A Gger <tagger@example.com> 1234567890 -0000
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This is an invalid tag.
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EOF
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tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
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test_when_finished "remove_object $tag" &&
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echo $tag >.git/refs/tags/wrong &&
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test_when_finished "git update-ref -d refs/tags/wrong" &&
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test_must_fail git fsck --tags
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'
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test_expect_success 'tag with incorrect tag name & missing tagger' '
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sha=$(git rev-parse HEAD) &&
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cat >wrong-tag <<-EOF &&
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object $sha
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type commit
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tag wrong name format
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This is an invalid tag.
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EOF
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tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
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test_when_finished "remove_object $tag" &&
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echo $tag >.git/refs/tags/wrong &&
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test_when_finished "git update-ref -d refs/tags/wrong" &&
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git fsck --tags 2>out &&
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cat >expect <<-EOF &&
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warning in tag $tag: badTagName: invalid '\''tag'\'' name: wrong name format
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warning in tag $tag: missingTaggerEntry: invalid format - expected '\''tagger'\'' line
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EOF
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test_i18ncmp expect out
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'
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test_expect_success 'tag with bad tagger' '
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sha=$(git rev-parse HEAD) &&
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cat >wrong-tag <<-EOF &&
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object $sha
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type commit
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tag not-quite-wrong
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tagger Bad Tagger Name
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This is an invalid tag.
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EOF
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tag=$(git hash-object --literally -t tag -w --stdin <wrong-tag) &&
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test_when_finished "remove_object $tag" &&
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echo $tag >.git/refs/tags/wrong &&
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test_when_finished "git update-ref -d refs/tags/wrong" &&
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test_must_fail git fsck --tags 2>out &&
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test_i18ngrep "error in tag .*: invalid author/committer" out
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'
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test_expect_success 'tag with NUL in header' '
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sha=$(git rev-parse HEAD) &&
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q_to_nul >tag-NUL-header <<-EOF &&
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object $sha
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type commit
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tag contains-Q-in-header
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tagger T A Gger <tagger@example.com> 1234567890 -0000
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This is an invalid tag.
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EOF
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tag=$(git hash-object --literally -t tag -w --stdin <tag-NUL-header) &&
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test_when_finished "remove_object $tag" &&
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echo $tag >.git/refs/tags/wrong &&
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test_when_finished "git update-ref -d refs/tags/wrong" &&
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test_must_fail git fsck --tags 2>out &&
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cat out &&
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test_i18ngrep "error in tag $tag.*unterminated header: NUL at offset" out
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'
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test_expect_success 'cleaned up' '
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git fsck >actual 2>&1 &&
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test_must_be_empty actual
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'
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test_expect_success 'rev-list --verify-objects' '
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git rev-list --verify-objects --all >/dev/null 2>out &&
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test_must_be_empty out
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'
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test_expect_success 'rev-list --verify-objects with bad sha1' '
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sha=$(echo blob | git hash-object -w --stdin) &&
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old=$(echo $sha | sed "s+^..+&/+") &&
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new=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&
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sha="$(dirname $new)$(basename $new)" &&
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mv .git/objects/$old .git/objects/$new &&
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test_when_finished "remove_object $sha" &&
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git update-index --add --cacheinfo 100644 $sha foo &&
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test_when_finished "git read-tree -u --reset HEAD" &&
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tree=$(git write-tree) &&
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test_when_finished "remove_object $tree" &&
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cmt=$(echo bogus | git commit-tree $tree) &&
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test_when_finished "remove_object $cmt" &&
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git update-ref refs/heads/bogus $cmt &&
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test_when_finished "git update-ref -d refs/heads/bogus" &&
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test_might_fail git rev-list --verify-objects refs/heads/bogus >/dev/null 2>out &&
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cat out &&
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test_i18ngrep -q "error: hash mismatch 63ffffffffffffffffffffffffffffffffffffff" out
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'
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test_expect_success 'force fsck to ignore double author' '
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git cat-file commit HEAD >basis &&
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sed "s/^author .*/&,&/" <basis | tr , \\n >multiple-authors &&
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new=$(git hash-object -t commit -w --stdin <multiple-authors) &&
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test_when_finished "remove_object $new" &&
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git update-ref refs/heads/bogus "$new" &&
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test_when_finished "git update-ref -d refs/heads/bogus" &&
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test_must_fail git fsck &&
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git -c fsck.multipleAuthors=ignore fsck
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'
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_bz='\0'
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_bz5="$_bz$_bz$_bz$_bz$_bz"
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_bz20="$_bz5$_bz5$_bz5$_bz5"
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test_expect_success 'fsck notices blob entry pointing to null sha1' '
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(git init null-blob &&
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cd null-blob &&
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sha=$(printf "100644 file$_bz$_bz20" |
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git hash-object -w --stdin -t tree) &&
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git fsck 2>out &&
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cat out &&
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test_i18ngrep "warning.*null sha1" out
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)
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'
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test_expect_success 'fsck notices submodule entry pointing to null sha1' '
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(git init null-commit &&
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cd null-commit &&
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sha=$(printf "160000 submodule$_bz$_bz20" |
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git hash-object -w --stdin -t tree) &&
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git fsck 2>out &&
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cat out &&
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test_i18ngrep "warning.*null sha1" out
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)
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'
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while read name path pretty; do
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while read mode type; do
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: ${pretty:=$path}
|
|
test_expect_success "fsck notices $pretty as $type" '
|
|
(
|
|
git init $name-$type &&
|
|
cd $name-$type &&
|
|
echo content >file &&
|
|
git add file &&
|
|
git commit -m base &&
|
|
blob=$(git rev-parse :file) &&
|
|
tree=$(git rev-parse HEAD^{tree}) &&
|
|
value=$(eval "echo \$$type") &&
|
|
printf "$mode $type %s\t%s" "$value" "$path" >bad &&
|
|
bad_tree=$(git mktree <bad) &&
|
|
git fsck 2>out &&
|
|
cat out &&
|
|
test_i18ngrep "warning.*tree $bad_tree" out
|
|
)'
|
|
done <<-\EOF
|
|
100644 blob
|
|
040000 tree
|
|
EOF
|
|
done <<-EOF
|
|
dot .
|
|
dotdot ..
|
|
dotgit .git
|
|
dotgit-case .GIT
|
|
dotgit-unicode .gI${u200c}T .gI{u200c}T
|
|
dotgit-case2 .Git
|
|
git-tilde1 git~1
|
|
dotgitdot .git.
|
|
dot-backslash-case .\\\\.GIT\\\\foobar
|
|
dotgit-case-backslash .git\\\\foobar
|
|
EOF
|
|
|
|
test_expect_success 'fsck allows .Ňit' '
|
|
(
|
|
git init not-dotgit &&
|
|
cd not-dotgit &&
|
|
echo content >file &&
|
|
git add file &&
|
|
git commit -m base &&
|
|
blob=$(git rev-parse :file) &&
|
|
printf "100644 blob $blob\t.\\305\\207it" >tree &&
|
|
tree=$(git mktree <tree) &&
|
|
git fsck 2>err &&
|
|
test_line_count = 0 err
|
|
)
|
|
'
|
|
|
|
test_expect_success 'NUL in commit' '
|
|
rm -fr nul-in-commit &&
|
|
git init nul-in-commit &&
|
|
(
|
|
cd nul-in-commit &&
|
|
git commit --allow-empty -m "initial commitQNUL after message" &&
|
|
git cat-file commit HEAD >original &&
|
|
q_to_nul <original >munged &&
|
|
git hash-object -w -t commit --stdin <munged >name &&
|
|
git branch bad $(cat name) &&
|
|
|
|
test_must_fail git -c fsck.nulInCommit=error fsck 2>warn.1 &&
|
|
test_i18ngrep nulInCommit warn.1 &&
|
|
git fsck 2>warn.2 &&
|
|
test_i18ngrep nulInCommit warn.2
|
|
)
|
|
'
|
|
|
|
# create a static test repo which is broken by omitting
|
|
# one particular object ($1, which is looked up via rev-parse
|
|
# in the new repository).
|
|
create_repo_missing () {
|
|
rm -rf missing &&
|
|
git init missing &&
|
|
(
|
|
cd missing &&
|
|
git commit -m one --allow-empty &&
|
|
mkdir subdir &&
|
|
echo content >subdir/file &&
|
|
git add subdir/file &&
|
|
git commit -m two &&
|
|
unrelated=$(echo unrelated | git hash-object --stdin -w) &&
|
|
git tag -m foo tag $unrelated &&
|
|
sha1=$(git rev-parse --verify "$1") &&
|
|
path=$(echo $sha1 | sed 's|..|&/|') &&
|
|
rm .git/objects/$path
|
|
)
|
|
}
|
|
|
|
test_expect_success 'fsck notices missing blob' '
|
|
create_repo_missing HEAD:subdir/file &&
|
|
test_must_fail git -C missing fsck
|
|
'
|
|
|
|
test_expect_success 'fsck notices missing subtree' '
|
|
create_repo_missing HEAD:subdir &&
|
|
test_must_fail git -C missing fsck
|
|
'
|
|
|
|
test_expect_success 'fsck notices missing root tree' '
|
|
create_repo_missing HEAD^{tree} &&
|
|
test_must_fail git -C missing fsck
|
|
'
|
|
|
|
test_expect_success 'fsck notices missing parent' '
|
|
create_repo_missing HEAD^ &&
|
|
test_must_fail git -C missing fsck
|
|
'
|
|
|
|
test_expect_success 'fsck notices missing tagged object' '
|
|
create_repo_missing tag^{blob} &&
|
|
test_must_fail git -C missing fsck
|
|
'
|
|
|
|
test_expect_success 'fsck notices ref pointing to missing commit' '
|
|
create_repo_missing HEAD &&
|
|
test_must_fail git -C missing fsck
|
|
'
|
|
|
|
test_expect_success 'fsck notices ref pointing to missing tag' '
|
|
create_repo_missing tag &&
|
|
test_must_fail git -C missing fsck
|
|
'
|
|
|
|
test_expect_success 'fsck --connectivity-only' '
|
|
rm -rf connectivity-only &&
|
|
git init connectivity-only &&
|
|
(
|
|
cd connectivity-only &&
|
|
touch empty &&
|
|
git add empty &&
|
|
test_commit empty &&
|
|
|
|
# Drop the index now; we want to be sure that we
|
|
# recursively notice the broken objects
|
|
# because they are reachable from refs, not because
|
|
# they are in the index.
|
|
rm -f .git/index &&
|
|
|
|
# corrupt the blob, but in a way that we can still identify
|
|
# its type. That lets us see that --connectivity-only is
|
|
# not actually looking at the contents, but leaves it
|
|
# free to examine the type if it chooses.
|
|
empty=.git/objects/e6/9de29bb2d1d6434b8b29ae775ad8c2e48c5391 &&
|
|
blob=$(echo unrelated | git hash-object -w --stdin) &&
|
|
mv -f $(sha1_file $blob) $empty &&
|
|
|
|
test_must_fail git fsck --strict &&
|
|
git fsck --strict --connectivity-only &&
|
|
tree=$(git rev-parse HEAD:) &&
|
|
suffix=${tree#??} &&
|
|
tree=.git/objects/${tree%$suffix}/$suffix &&
|
|
rm -f $tree &&
|
|
echo invalid >$tree &&
|
|
test_must_fail git fsck --strict --connectivity-only
|
|
)
|
|
'
|
|
|
|
test_expect_success 'fsck --connectivity-only with explicit head' '
|
|
rm -rf connectivity-only &&
|
|
git init connectivity-only &&
|
|
(
|
|
cd connectivity-only &&
|
|
test_commit foo &&
|
|
rm -f .git/index &&
|
|
tree=$(git rev-parse HEAD^{tree}) &&
|
|
remove_object $(git rev-parse HEAD:foo.t) &&
|
|
test_must_fail git fsck --connectivity-only $tree
|
|
)
|
|
'
|
|
|
|
test_expect_success 'fsck --name-objects' '
|
|
rm -rf name-objects &&
|
|
git init name-objects &&
|
|
(
|
|
cd name-objects &&
|
|
test_commit julius caesar.t &&
|
|
test_commit augustus &&
|
|
test_commit caesar &&
|
|
remove_object $(git rev-parse julius:caesar.t) &&
|
|
test_must_fail git fsck --name-objects >out &&
|
|
tree=$(git rev-parse --verify julius:) &&
|
|
test_i18ngrep -E "$tree \((refs/heads/master|HEAD)@\{[0-9]*\}:" out
|
|
)
|
|
'
|
|
|
|
test_expect_success 'alternate objects are correctly blamed' '
|
|
test_when_finished "rm -rf alt.git .git/objects/info/alternates" &&
|
|
git init --bare alt.git &&
|
|
echo "../../alt.git/objects" >.git/objects/info/alternates &&
|
|
mkdir alt.git/objects/12 &&
|
|
>alt.git/objects/12/34567890123456789012345678901234567890 &&
|
|
test_must_fail git fsck >out 2>&1 &&
|
|
test_i18ngrep alt.git out
|
|
'
|
|
|
|
test_expect_success 'fsck errors in packed objects' '
|
|
git cat-file commit HEAD >basis &&
|
|
sed "s/</one/" basis >one &&
|
|
sed "s/</foo/" basis >two &&
|
|
one=$(git hash-object -t commit -w one) &&
|
|
two=$(git hash-object -t commit -w two) &&
|
|
pack=$(
|
|
{
|
|
echo $one &&
|
|
echo $two
|
|
} | git pack-objects .git/objects/pack/pack
|
|
) &&
|
|
test_when_finished "rm -f .git/objects/pack/pack-$pack.*" &&
|
|
remove_object $one &&
|
|
remove_object $two &&
|
|
test_must_fail git fsck 2>out &&
|
|
test_i18ngrep "error in commit $one.* - bad name" out &&
|
|
test_i18ngrep "error in commit $two.* - bad name" out &&
|
|
! grep corrupt out
|
|
'
|
|
|
|
test_expect_success 'fsck fails on corrupt packfile' '
|
|
hsh=$(git commit-tree -m mycommit HEAD^{tree}) &&
|
|
pack=$(echo $hsh | git pack-objects .git/objects/pack/pack) &&
|
|
|
|
# Corrupt the first byte of the first object. (It contains 3 type bits,
|
|
# at least one of which is not zero, so setting the first byte to 0 is
|
|
# sufficient.)
|
|
chmod a+w .git/objects/pack/pack-$pack.pack &&
|
|
printf '\0' | dd of=.git/objects/pack/pack-$pack.pack bs=1 conv=notrunc seek=12 &&
|
|
|
|
test_when_finished "rm -f .git/objects/pack/pack-$pack.*" &&
|
|
remove_object $hsh &&
|
|
test_must_fail git fsck 2>out &&
|
|
test_i18ngrep "checksum mismatch" out
|
|
'
|
|
|
|
test_expect_success 'fsck finds problems in duplicate loose objects' '
|
|
rm -rf broken-duplicate &&
|
|
git init broken-duplicate &&
|
|
(
|
|
cd broken-duplicate &&
|
|
test_commit duplicate &&
|
|
# no "-d" here, so we end up with duplicates
|
|
git repack &&
|
|
# now corrupt the loose copy
|
|
file=$(sha1_file "$(git rev-parse HEAD)") &&
|
|
rm "$file" &&
|
|
echo broken >"$file" &&
|
|
test_must_fail git fsck
|
|
)
|
|
'
|
|
|
|
test_expect_success 'fsck detects trailing loose garbage (commit)' '
|
|
git cat-file commit HEAD >basis &&
|
|
echo bump-commit-sha1 >>basis &&
|
|
commit=$(git hash-object -w -t commit basis) &&
|
|
file=$(sha1_file $commit) &&
|
|
test_when_finished "remove_object $commit" &&
|
|
chmod +w "$file" &&
|
|
echo garbage >>"$file" &&
|
|
test_must_fail git fsck 2>out &&
|
|
test_i18ngrep "garbage.*$commit" out
|
|
'
|
|
|
|
test_expect_success 'fsck detects trailing loose garbage (large blob)' '
|
|
blob=$(echo trailing | git hash-object -w --stdin) &&
|
|
file=$(sha1_file $blob) &&
|
|
test_when_finished "remove_object $blob" &&
|
|
chmod +w "$file" &&
|
|
echo garbage >>"$file" &&
|
|
test_must_fail git -c core.bigfilethreshold=5 fsck 2>out &&
|
|
test_i18ngrep "garbage.*$blob" out
|
|
'
|
|
|
|
test_expect_success 'fsck detects truncated loose object' '
|
|
# make it big enough that we know we will truncate in the data
|
|
# portion, not the header
|
|
test-tool genrandom truncate 4096 >file &&
|
|
blob=$(git hash-object -w file) &&
|
|
file=$(sha1_file $blob) &&
|
|
test_when_finished "remove_object $blob" &&
|
|
test_copy_bytes 1024 <"$file" >tmp &&
|
|
rm "$file" &&
|
|
mv -f tmp "$file" &&
|
|
|
|
# check both regular and streaming code paths
|
|
test_must_fail git fsck 2>out &&
|
|
test_i18ngrep corrupt.*$blob out &&
|
|
|
|
test_must_fail git -c core.bigfilethreshold=128 fsck 2>out &&
|
|
test_i18ngrep corrupt.*$blob out
|
|
'
|
|
|
|
# for each of type, we have one version which is referenced by another object
|
|
# (and so while unreachable, not dangling), and another variant which really is
|
|
# dangling.
|
|
test_expect_success 'fsck notices dangling objects' '
|
|
git init dangling &&
|
|
(
|
|
cd dangling &&
|
|
blob=$(echo not-dangling | git hash-object -w --stdin) &&
|
|
dblob=$(echo dangling | git hash-object -w --stdin) &&
|
|
tree=$(printf "100644 blob %s\t%s\n" $blob one | git mktree) &&
|
|
dtree=$(printf "100644 blob %s\t%s\n" $blob two | git mktree) &&
|
|
commit=$(git commit-tree $tree) &&
|
|
dcommit=$(git commit-tree -p $commit $tree) &&
|
|
|
|
cat >expect <<-EOF &&
|
|
dangling blob $dblob
|
|
dangling commit $dcommit
|
|
dangling tree $dtree
|
|
EOF
|
|
|
|
git fsck >actual &&
|
|
# the output order is non-deterministic, as it comes from a hash
|
|
sort <actual >actual.sorted &&
|
|
test_i18ncmp expect actual.sorted
|
|
)
|
|
'
|
|
|
|
test_expect_success 'fsck $name notices bogus $name' '
|
|
test_must_fail git fsck bogus &&
|
|
test_must_fail git fsck $ZERO_OID
|
|
'
|
|
|
|
test_expect_success 'bogus head does not fallback to all heads' '
|
|
# set up a case that will cause a reachability complaint
|
|
echo to-be-deleted >foo &&
|
|
git add foo &&
|
|
blob=$(git rev-parse :foo) &&
|
|
test_when_finished "git rm --cached foo" &&
|
|
remove_object $blob &&
|
|
test_must_fail git fsck $ZERO_OID >out 2>&1 &&
|
|
! grep $blob out
|
|
'
|
|
|
|
# Corrupt the checksum on the index.
|
|
# Add 1 to the last byte in the SHA.
|
|
corrupt_index_checksum () {
|
|
perl -w -e '
|
|
use Fcntl ":seek";
|
|
open my $fh, "+<", ".git/index" or die "open: $!";
|
|
binmode $fh;
|
|
seek $fh, -1, SEEK_END or die "seek: $!";
|
|
read $fh, my $in_byte, 1 or die "read: $!";
|
|
|
|
$in_value = unpack("C", $in_byte);
|
|
$out_value = ($in_value + 1) & 255;
|
|
|
|
$out_byte = pack("C", $out_value);
|
|
|
|
seek $fh, -1, SEEK_END or die "seek: $!";
|
|
print $fh $out_byte;
|
|
close $fh or die "close: $!";
|
|
'
|
|
}
|
|
|
|
# Corrupt the checksum on the index and then
|
|
# verify that only fsck notices.
|
|
test_expect_success 'detect corrupt index file in fsck' '
|
|
cp .git/index .git/index.backup &&
|
|
test_when_finished "mv .git/index.backup .git/index" &&
|
|
corrupt_index_checksum &&
|
|
test_must_fail git fsck --cache 2>errors &&
|
|
test_i18ngrep "bad index file" errors
|
|
'
|
|
|
|
test_done
|