diff options
Diffstat (limited to 't/t1450-fsck.sh')
| -rwxr-xr-x | t/t1450-fsck.sh | 176 |
1 files changed, 160 insertions, 16 deletions
diff --git a/t/t1450-fsck.sh b/t/t1450-fsck.sh index 8f52da2..33a51c9 100755 --- a/t/t1450-fsck.sh +++ b/t/t1450-fsck.sh @@ -43,13 +43,13 @@ test_expect_success 'HEAD is part of refs, valid objects appear valid' ' test_expect_success 'setup: helpers for corruption tests' ' sha1_file() { - echo "$*" | sed "s#..#.git/objects/&/#" + remainder=${1#??} && + firsttwo=${1%$remainder} && + echo ".git/objects/$firsttwo/$remainder" } && remove_object() { - file=$(sha1_file "$*") && - test -e "$file" && - rm -f "$file" + rm "$(sha1_file "$1")" } ' @@ -188,16 +188,17 @@ test_expect_success 'commit with NUL in header' ' grep "error in commit $new.*unterminated header: NUL at offset" out ' -test_expect_success 'malformatted tree object' ' - test_when_finished "git update-ref -d refs/tags/wrong" && - test_when_finished "remove_object \$T" && +test_expect_success 'tree object with duplicate entries' ' + test_when_finished "for i in \$T; do remove_object \$i; done" && T=$( GIT_INDEX_FILE=test-index && export GIT_INDEX_FILE && rm -f test-index && >x && git add x && + git rev-parse :x && T=$(git write-tree) && + echo $T && ( git cat-file tree $T && git cat-file tree $T @@ -208,6 +209,19 @@ test_expect_success 'malformatted tree object' ' grep "error in tree .*contains duplicate file entries" out ' +test_expect_success 'unparseable tree object' ' + test_when_finished "git update-ref -d refs/heads/wrong" && + test_when_finished "remove_object \$tree_sha1" && + test_when_finished "remove_object \$commit_sha1" && + tree_sha1=$(printf "100644 \0twenty-bytes-of-junk" | git hash-object -t tree --stdin -w --literally) && + commit_sha1=$(git commit-tree $tree_sha1) && + git update-ref refs/heads/wrong $commit_sha1 && + test_must_fail git fsck 2>out && + test_i18ngrep "error: empty filename in tree entry" out && + test_i18ngrep "$tree_sha1" out && + test_i18ngrep ! "fatal: empty filename in tree entry" out +' + test_expect_success 'tag pointing to nonexistent' ' cat >invalid-tag <<-\EOF && object ffffffffffffffffffffffffffffffffffffffff @@ -509,9 +523,21 @@ test_expect_success 'fsck --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 && - rm -f $empty && - echo invalid >$empty && + 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:) && @@ -523,12 +549,18 @@ test_expect_success 'fsck --connectivity-only' ' ) ' -remove_loose_object () { - sha1="$(git rev-parse "$1")" && - remainder=${sha1#??} && - firsttwo=${sha1%$remainder} && - rm .git/objects/$firsttwo/$remainder -} +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 && @@ -538,11 +570,123 @@ test_expect_success 'fsck --name-objects' ' test_commit julius caesar.t && test_commit augustus && test_commit caesar && - remove_loose_object $(git rev-parse julius:caesar.t) && + remove_object $(git rev-parse julius:caesar.t) && test_must_fail git fsck --name-objects >out && tree=$(git rev-parse --verify julius:) && grep "$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 $two.* - bad name" out && + ! grep corrupt out +' + +test_expect_success 'fsck finds problems in duplicate loose objects' ' + rm -rf broken-duplicate && + git init broken-duplicate && + ( + cd broken-duplicate && + test_commit duplicate && + # no "-d" here, so we end up with duplicates + git repack && + # now corrupt the loose copy + file=$(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 (blob)' ' + blob=$(echo trailing | git hash-object -w --stdin) && + file=$(sha1_file $blob) && + test_when_finished "remove_object $blob" && + chmod +w "$file" && + echo garbage >>"$file" && + test_must_fail git fsck 2>out && + test_i18ngrep "garbage.*$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 $_z40 +' + +test_expect_success 'bogus head does not fallback to all heads' ' + # set up a case that will cause a reachability complaint + echo to-be-deleted >foo && + git add foo && + blob=$(git rev-parse :foo) && + test_when_finished "git rm --cached foo" && + remove_object $blob && + test_must_fail git fsck $_z40 >out 2>&1 && + ! grep $blob out +' + test_done |