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814 lines
24 KiB
814 lines
24 KiB
#!/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 $cmt && |
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test_when_finished "git update-ref -d refs/heads/bogus" && |
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test_must_fail git fsck 2>out && |
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cat out && |
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grep "$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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grep "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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grep "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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grep "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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grep "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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grep "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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grep "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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grep "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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grep "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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grep "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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grep "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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grep "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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grep "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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grep "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 $T |
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) | |
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git hash-object -w -t tree --stdin |
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) && |
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test_must_fail git fsck 2>out && |
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grep "error in tree .*contains duplicate file entries" out |
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' |
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test_expect_success 'unparseable tree object' ' |
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test_when_finished "git update-ref -d refs/heads/wrong" && |
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test_when_finished "remove_object \$tree_sha1" && |
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test_when_finished "remove_object \$commit_sha1" && |
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tree_sha1=$(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 $tag >.git/refs/tags/invalid && |
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test_when_finished "git update-ref -d refs/tags/invalid" && |
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test_must_fail git fsck --tags >out && |
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cat out && |
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grep "broken link" out |
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' |
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test_expect_success 'tag pointing to something else than its type' ' |
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sha=$(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 $tag: missingTaggerEntry: invalid format - expected '\''tagger'\'' line |
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EOF |
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test_cmp expect out |
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' |
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test_expect_success 'tag with bad tagger' ' |
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sha=$(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 $tag >.git/refs/tags/wrong && |
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test_when_finished "git update-ref -d refs/tags/wrong" && |
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test_must_fail git fsck --tags 2>out && |
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grep "error in tag .*: invalid author/committer" out |
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' |
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test_expect_success 'tag with NUL in header' ' |
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sha=$(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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grep "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 $cmt && |
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test_when_finished "git update-ref -d refs/heads/bogus" && |
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test_might_fail git rev-list --verify-objects refs/heads/bogus >/dev/null 2>out && |
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cat out && |
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test_i18ngrep -q "error: sha1 mismatch 63ffffffffffffffffffffffffffffffffffffff" out |
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' |
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test_expect_success 'force fsck to ignore double author' ' |
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git cat-file commit HEAD >basis && |
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sed "s/^author .*/&,&/" <basis | tr , \\n >multiple-authors && |
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new=$(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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grep "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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grep "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} |
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test_expect_success "fsck notices $pretty as $type" ' |
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( |
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git init $name-$type && |
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cd $name-$type && |
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echo content >file && |
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git add file && |
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git commit -m base && |
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blob=$(git rev-parse :file) && |
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tree=$(git rev-parse HEAD^{tree}) && |
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value=$(eval "echo \$$type") && |
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printf "$mode $type %s\t%s" "$value" "$path" >bad && |
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bad_tree=$(git mktree <bad) && |
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git fsck 2>out && |
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cat out && |
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grep "warning.*tree $bad_tree" out |
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)' |
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done <<-\EOF |
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100644 blob |
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040000 tree |
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EOF |
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done <<-EOF |
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dot . |
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dotdot .. |
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dotgit .git |
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dotgit-case .GIT |
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dotgit-unicode .gI${u200c}T .gI{u200c}T |
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dotgit-case2 .Git |
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git-tilde1 git~1 |
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dotgitdot .git. |
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dot-backslash-case .\\\\.GIT\\\\foobar |
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dotgit-case-backslash .git\\\\foobar |
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EOF |
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test_expect_success 'fsck allows .Ňit' ' |
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( |
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git init not-dotgit && |
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cd not-dotgit && |
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echo content >file && |
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git add file && |
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git commit -m base && |
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blob=$(git rev-parse :file) && |
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printf "100644 blob $blob\t.\\305\\207it" >tree && |
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tree=$(git mktree <tree) && |
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git fsck 2>err && |
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test_line_count = 0 err |
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) |
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' |
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test_expect_success 'NUL in commit' ' |
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rm -fr nul-in-commit && |
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git init nul-in-commit && |
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( |
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cd nul-in-commit && |
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git commit --allow-empty -m "initial commitQNUL after message" && |
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git cat-file commit HEAD >original && |
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q_to_nul <original >munged && |
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git hash-object -w -t commit --stdin <munged >name && |
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git branch bad $(cat name) && |
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test_must_fail git -c fsck.nulInCommit=error fsck 2>warn.1 && |
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grep nulInCommit warn.1 && |
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git fsck 2>warn.2 && |
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grep nulInCommit warn.2 |
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) |
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' |
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|
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# create a static test repo which is broken by omitting |
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# one particular object ($1, which is looked up via rev-parse |
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# in the new repository). |
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create_repo_missing () { |
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rm -rf missing && |
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git init missing && |
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( |
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cd missing && |
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git commit -m one --allow-empty && |
|
mkdir subdir && |
|
echo content >subdir/file && |
|
git add subdir/file && |
|
git commit -m two && |
|
unrelated=$(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:) && |
|
egrep "$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 && |
|
grep 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 && |
|
grep "error in commit $one.* - bad name" out && |
|
grep "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_cmp 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 && |
|
grep "bad index file" errors |
|
' |
|
|
|
test_done
|
|
|