3 test_description='git fsck random collection of tests
11 test_expect_success setup '
13 git config gc.auto 0 &&
14 git config i18n.commitencoding ISO-8859-1 &&
15 test_commit A fileA one &&
16 git config --unset i18n.commitencoding &&
17 git checkout HEAD^0 &&
18 test_commit B fileB two &&
20 git reflog expire --expire=now --all
23 test_expect_success 'loose objects borrowed from alternate are not missing' '
28 echo ../../../.git/objects >.git/objects/info/alternates &&
29 test_commit C fileC one &&
30 git fsck --no-dangling >../actual 2>&1
32 test_must_be_empty actual
35 test_expect_success 'HEAD is part of refs, valid objects appear valid' '
36 git fsck >actual 2>&1 &&
37 test_must_be_empty actual
40 # Corruption tests follow. Make sure to remove all traces of the
41 # specific corruption you test afterwards, lest a later test trip over
44 test_expect_success 'setup: helpers for corruption tests' '
47 firsttwo=${1%$remainder} &&
48 echo ".git/objects/$firsttwo/$remainder"
52 rm "$(sha1_file "$1")"
56 test_expect_success 'object with bad sha1' '
57 sha=$(echo blob | git hash-object -w --stdin) &&
58 old=$(test_oid_to_path "$sha") &&
59 new=$(dirname $old)/$(test_oid ff_2) &&
60 sha="$(dirname $new)$(basename $new)" &&
61 mv .git/objects/$old .git/objects/$new &&
62 test_when_finished "remove_object $sha" &&
63 git update-index --add --cacheinfo 100644 $sha foo &&
64 test_when_finished "git read-tree -u --reset HEAD" &&
65 tree=$(git write-tree) &&
66 test_when_finished "remove_object $tree" &&
67 cmt=$(echo bogus | git commit-tree $tree) &&
68 test_when_finished "remove_object $cmt" &&
69 git update-ref refs/heads/bogus $cmt &&
70 test_when_finished "git update-ref -d refs/heads/bogus" &&
72 test_must_fail git fsck 2>out &&
74 test_i18ngrep "$sha.*corrupt" out
77 test_expect_success 'branch pointing to non-commit' '
78 git rev-parse HEAD^{tree} >.git/refs/heads/invalid &&
79 test_when_finished "git update-ref -d refs/heads/invalid" &&
80 test_must_fail git fsck 2>out &&
82 test_i18ngrep "not a commit" out
85 test_expect_success 'HEAD link pointing at a funny object' '
86 test_when_finished "mv .git/SAVED_HEAD .git/HEAD" &&
87 mv .git/HEAD .git/SAVED_HEAD &&
88 echo $ZERO_OID >.git/HEAD &&
89 # avoid corrupt/broken HEAD from interfering with repo discovery
90 test_must_fail env GIT_DIR=.git git fsck 2>out &&
92 test_i18ngrep "detached HEAD points" out
95 test_expect_success 'HEAD link pointing at a funny place' '
96 test_when_finished "mv .git/SAVED_HEAD .git/HEAD" &&
97 mv .git/HEAD .git/SAVED_HEAD &&
98 echo "ref: refs/funny/place" >.git/HEAD &&
99 # avoid corrupt/broken HEAD from interfering with repo discovery
100 test_must_fail env GIT_DIR=.git git fsck 2>out &&
102 test_i18ngrep "HEAD points to something strange" out
105 test_expect_success 'HEAD link pointing at a funny object (from different wt)' '
106 test_when_finished "mv .git/SAVED_HEAD .git/HEAD" &&
107 test_when_finished "rm -rf .git/worktrees wt" &&
108 git worktree add wt &&
109 mv .git/HEAD .git/SAVED_HEAD &&
110 echo $ZERO_OID >.git/HEAD &&
111 # avoid corrupt/broken HEAD from interfering with repo discovery
112 test_must_fail git -C wt fsck 2>out &&
113 test_i18ngrep "main-worktree/HEAD: detached HEAD points" out
116 test_expect_success 'other worktree HEAD link pointing at a funny object' '
117 test_when_finished "rm -rf .git/worktrees other" &&
118 git worktree add other &&
119 echo $ZERO_OID >.git/worktrees/other/HEAD &&
120 test_must_fail git fsck 2>out &&
121 test_i18ngrep "worktrees/other/HEAD: detached HEAD points" out
124 test_expect_success 'other worktree HEAD link pointing at missing object' '
125 test_when_finished "rm -rf .git/worktrees other" &&
126 git worktree add other &&
127 echo "Contents missing from repo" | git hash-object --stdin >.git/worktrees/other/HEAD &&
128 test_must_fail git fsck 2>out &&
129 test_i18ngrep "worktrees/other/HEAD: invalid sha1 pointer" out
132 test_expect_success 'other worktree HEAD link pointing at a funny place' '
133 test_when_finished "rm -rf .git/worktrees other" &&
134 git worktree add other &&
135 echo "ref: refs/funny/place" >.git/worktrees/other/HEAD &&
136 test_must_fail git fsck 2>out &&
137 test_i18ngrep "worktrees/other/HEAD points to something strange" out
140 test_expect_success 'email without @ is okay' '
141 git cat-file commit HEAD >basis &&
142 sed "s/@/AT/" basis >okay &&
143 new=$(git hash-object -t commit -w --stdin <okay) &&
144 test_when_finished "remove_object $new" &&
145 git update-ref refs/heads/bogus "$new" &&
146 test_when_finished "git update-ref -d refs/heads/bogus" &&
149 ! grep "commit $new" out
152 test_expect_success 'email with embedded > is not okay' '
153 git cat-file commit HEAD >basis &&
154 sed "s/@[a-z]/&>/" basis >bad-email &&
155 new=$(git hash-object -t commit -w --stdin <bad-email) &&
156 test_when_finished "remove_object $new" &&
157 git update-ref refs/heads/bogus "$new" &&
158 test_when_finished "git update-ref -d refs/heads/bogus" &&
159 test_must_fail git fsck 2>out &&
161 test_i18ngrep "error in commit $new" out
164 test_expect_success 'missing < email delimiter is reported nicely' '
165 git cat-file commit HEAD >basis &&
166 sed "s/<//" basis >bad-email-2 &&
167 new=$(git hash-object -t commit -w --stdin <bad-email-2) &&
168 test_when_finished "remove_object $new" &&
169 git update-ref refs/heads/bogus "$new" &&
170 test_when_finished "git update-ref -d refs/heads/bogus" &&
171 test_must_fail git fsck 2>out &&
173 test_i18ngrep "error in commit $new.* - bad name" out
176 test_expect_success 'missing email is reported nicely' '
177 git cat-file commit HEAD >basis &&
178 sed "s/[a-z]* <[^>]*>//" basis >bad-email-3 &&
179 new=$(git hash-object -t commit -w --stdin <bad-email-3) &&
180 test_when_finished "remove_object $new" &&
181 git update-ref refs/heads/bogus "$new" &&
182 test_when_finished "git update-ref -d refs/heads/bogus" &&
183 test_must_fail git fsck 2>out &&
185 test_i18ngrep "error in commit $new.* - missing email" out
188 test_expect_success '> in name is reported' '
189 git cat-file commit HEAD >basis &&
190 sed "s/ </> </" basis >bad-email-4 &&
191 new=$(git hash-object -t commit -w --stdin <bad-email-4) &&
192 test_when_finished "remove_object $new" &&
193 git update-ref refs/heads/bogus "$new" &&
194 test_when_finished "git update-ref -d refs/heads/bogus" &&
195 test_must_fail git fsck 2>out &&
197 test_i18ngrep "error in commit $new" out
201 test_expect_success 'integer overflow in timestamps is reported' '
202 git cat-file commit HEAD >basis &&
203 sed "s/^\\(author .*>\\) [0-9]*/\\1 18446744073709551617/" \
204 <basis >bad-timestamp &&
205 new=$(git hash-object -t commit -w --stdin <bad-timestamp) &&
206 test_when_finished "remove_object $new" &&
207 git update-ref refs/heads/bogus "$new" &&
208 test_when_finished "git update-ref -d refs/heads/bogus" &&
209 test_must_fail git fsck 2>out &&
211 test_i18ngrep "error in commit $new.*integer overflow" out
214 test_expect_success 'commit with NUL in header' '
215 git cat-file commit HEAD >basis &&
216 sed "s/author ./author Q/" <basis | q_to_nul >commit-NUL-header &&
217 new=$(git hash-object -t commit -w --stdin <commit-NUL-header) &&
218 test_when_finished "remove_object $new" &&
219 git update-ref refs/heads/bogus "$new" &&
220 test_when_finished "git update-ref -d refs/heads/bogus" &&
221 test_must_fail git fsck 2>out &&
223 test_i18ngrep "error in commit $new.*unterminated header: NUL at offset" out
226 test_expect_success 'tree object with duplicate entries' '
227 test_when_finished "for i in \$T; do remove_object \$i; done" &&
229 GIT_INDEX_FILE=test-index &&
230 export GIT_INDEX_FILE &&
235 T=$(git write-tree) &&
238 git cat-file tree $T &&
241 git hash-object -w -t tree --stdin
243 test_must_fail git fsck 2>out &&
244 test_i18ngrep "error in tree .*contains duplicate file entries" out
247 test_expect_success 'unparseable tree object' '
248 test_oid_cache <<-\EOF &&
249 junk sha1:twenty-bytes-of-junk
250 junk sha256:twenty-bytes-of-junk-twelve-more
253 test_when_finished "git update-ref -d refs/heads/wrong" &&
254 test_when_finished "remove_object \$tree_sha1" &&
255 test_when_finished "remove_object \$commit_sha1" &&
256 junk=$(test_oid junk) &&
257 tree_sha1=$(printf "100644 \0$junk" | git hash-object -t tree --stdin -w --literally) &&
258 commit_sha1=$(git commit-tree $tree_sha1) &&
259 git update-ref refs/heads/wrong $commit_sha1 &&
260 test_must_fail git fsck 2>out &&
261 test_i18ngrep "error: empty filename in tree entry" out &&
262 test_i18ngrep "$tree_sha1" out &&
263 test_i18ngrep ! "fatal: empty filename in tree entry" out
266 test_expect_success 'tree entry with type mismatch' '
267 test_when_finished "remove_object \$blob" &&
268 test_when_finished "remove_object \$tree" &&
269 test_when_finished "remove_object \$commit" &&
270 test_when_finished "git update-ref -d refs/heads/type_mismatch" &&
271 blob=$(echo blob | git hash-object -w --stdin) &&
272 blob_bin=$(echo $blob | hex2oct) &&
274 printf "40000 dir\0${blob_bin}100644 file\0${blob_bin}" |
275 git hash-object -t tree --stdin -w --literally
277 commit=$(git commit-tree $tree) &&
278 git update-ref refs/heads/type_mismatch $commit &&
279 test_must_fail git fsck >out 2>&1 &&
280 test_i18ngrep "is a blob, not a tree" out &&
281 test_i18ngrep ! "dangling blob" out
284 test_expect_success 'tag pointing to nonexistent' '
285 badoid=$(test_oid deadbeef) &&
286 cat >invalid-tag <<-EOF &&
290 tagger T A Gger <tagger@example.com> 1234567890 -0000
292 This is an invalid tag.
295 tag=$(git hash-object -t tag -w --stdin <invalid-tag) &&
296 test_when_finished "remove_object $tag" &&
297 echo $tag >.git/refs/tags/invalid &&
298 test_when_finished "git update-ref -d refs/tags/invalid" &&
299 test_must_fail git fsck --tags >out &&
301 test_i18ngrep "broken link" out
304 test_expect_success 'tag pointing to something else than its type' '
305 sha=$(echo blob | git hash-object -w --stdin) &&
306 test_when_finished "remove_object $sha" &&
307 cat >wrong-tag <<-EOF &&
311 tagger T A Gger <tagger@example.com> 1234567890 -0000
313 This is an invalid tag.
316 tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
317 test_when_finished "remove_object $tag" &&
318 echo $tag >.git/refs/tags/wrong &&
319 test_when_finished "git update-ref -d refs/tags/wrong" &&
320 test_must_fail git fsck --tags
323 test_expect_success 'tag with incorrect tag name & missing tagger' '
324 sha=$(git rev-parse HEAD) &&
325 cat >wrong-tag <<-EOF &&
328 tag wrong name format
330 This is an invalid tag.
333 tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
334 test_when_finished "remove_object $tag" &&
335 echo $tag >.git/refs/tags/wrong &&
336 test_when_finished "git update-ref -d refs/tags/wrong" &&
337 git fsck --tags 2>out &&
339 cat >expect <<-EOF &&
340 warning in tag $tag: badTagName: invalid '\''tag'\'' name: wrong name format
341 warning in tag $tag: missingTaggerEntry: invalid format - expected '\''tagger'\'' line
343 test_i18ncmp expect out
346 test_expect_success 'tag with bad tagger' '
347 sha=$(git rev-parse HEAD) &&
348 cat >wrong-tag <<-EOF &&
352 tagger Bad Tagger Name
354 This is an invalid tag.
357 tag=$(git hash-object --literally -t tag -w --stdin <wrong-tag) &&
358 test_when_finished "remove_object $tag" &&
359 echo $tag >.git/refs/tags/wrong &&
360 test_when_finished "git update-ref -d refs/tags/wrong" &&
361 test_must_fail git fsck --tags 2>out &&
362 test_i18ngrep "error in tag .*: invalid author/committer" out
365 test_expect_success 'tag with NUL in header' '
366 sha=$(git rev-parse HEAD) &&
367 q_to_nul >tag-NUL-header <<-EOF &&
370 tag contains-Q-in-header
371 tagger T A Gger <tagger@example.com> 1234567890 -0000
373 This is an invalid tag.
376 tag=$(git hash-object --literally -t tag -w --stdin <tag-NUL-header) &&
377 test_when_finished "remove_object $tag" &&
378 echo $tag >.git/refs/tags/wrong &&
379 test_when_finished "git update-ref -d refs/tags/wrong" &&
380 test_must_fail git fsck --tags 2>out &&
382 test_i18ngrep "error in tag $tag.*unterminated header: NUL at offset" out
385 test_expect_success 'cleaned up' '
386 git fsck >actual 2>&1 &&
387 test_must_be_empty actual
390 test_expect_success 'rev-list --verify-objects' '
391 git rev-list --verify-objects --all >/dev/null 2>out &&
392 test_must_be_empty out
395 test_expect_success 'rev-list --verify-objects with bad sha1' '
396 sha=$(echo blob | git hash-object -w --stdin) &&
397 old=$(test_oid_to_path $sha) &&
398 new=$(dirname $old)/$(test_oid ff_2) &&
399 sha="$(dirname $new)$(basename $new)" &&
400 mv .git/objects/$old .git/objects/$new &&
401 test_when_finished "remove_object $sha" &&
402 git update-index --add --cacheinfo 100644 $sha foo &&
403 test_when_finished "git read-tree -u --reset HEAD" &&
404 tree=$(git write-tree) &&
405 test_when_finished "remove_object $tree" &&
406 cmt=$(echo bogus | git commit-tree $tree) &&
407 test_when_finished "remove_object $cmt" &&
408 git update-ref refs/heads/bogus $cmt &&
409 test_when_finished "git update-ref -d refs/heads/bogus" &&
411 test_might_fail git rev-list --verify-objects refs/heads/bogus >/dev/null 2>out &&
413 test_i18ngrep -q "error: hash mismatch $(dirname $new)$(test_oid ff_2)" out
416 test_expect_success 'force fsck to ignore double author' '
417 git cat-file commit HEAD >basis &&
418 sed "s/^author .*/&,&/" <basis | tr , \\n >multiple-authors &&
419 new=$(git hash-object -t commit -w --stdin <multiple-authors) &&
420 test_when_finished "remove_object $new" &&
421 git update-ref refs/heads/bogus "$new" &&
422 test_when_finished "git update-ref -d refs/heads/bogus" &&
423 test_must_fail git fsck &&
424 git -c fsck.multipleAuthors=ignore fsck
428 _bzoid=$(printf $ZERO_OID | sed -e 's/00/\\0/g')
430 test_expect_success 'fsck notices blob entry pointing to null sha1' '
431 (git init null-blob &&
433 sha=$(printf "100644 file$_bz$_bzoid" |
434 git hash-object -w --stdin -t tree) &&
437 test_i18ngrep "warning.*null sha1" out
441 test_expect_success 'fsck notices submodule entry pointing to null sha1' '
442 (git init null-commit &&
444 sha=$(printf "160000 submodule$_bz$_bzoid" |
445 git hash-object -w --stdin -t tree) &&
448 test_i18ngrep "warning.*null sha1" out
452 while read name path pretty; do
453 while read mode type; do
455 test_expect_success "fsck notices $pretty as $type" '
457 git init $name-$type &&
459 echo content >file &&
461 git commit -m base &&
462 blob=$(git rev-parse :file) &&
463 tree=$(git rev-parse HEAD^{tree}) &&
464 value=$(eval "echo \$$type") &&
465 printf "$mode $type %s\t%s" "$value" "$path" >bad &&
466 bad_tree=$(git mktree <bad) &&
469 test_i18ngrep "warning.*tree $bad_tree" out
480 dotgit-unicode .gI${u200c}T .gI{u200c}T
484 dot-backslash-case .\\\\.GIT\\\\foobar
485 dotgit-case-backslash .git\\\\foobar
488 test_expect_success 'fsck allows .Ňit' '
490 git init not-dotgit &&
492 echo content >file &&
494 git commit -m base &&
495 blob=$(git rev-parse :file) &&
496 printf "100644 blob $blob\t.\\305\\207it" >tree &&
497 tree=$(git mktree <tree) &&
499 test_line_count = 0 err
503 test_expect_success 'NUL in commit' '
504 rm -fr nul-in-commit &&
505 git init nul-in-commit &&
508 git commit --allow-empty -m "initial commitQNUL after message" &&
509 git cat-file commit HEAD >original &&
510 q_to_nul <original >munged &&
511 git hash-object -w -t commit --stdin <munged >name &&
512 git branch bad $(cat name) &&
514 test_must_fail git -c fsck.nulInCommit=error fsck 2>warn.1 &&
515 test_i18ngrep nulInCommit warn.1 &&
517 test_i18ngrep nulInCommit warn.2
521 # create a static test repo which is broken by omitting
522 # one particular object ($1, which is looked up via rev-parse
523 # in the new repository).
524 create_repo_missing () {
529 git commit -m one --allow-empty &&
531 echo content >subdir/file &&
532 git add subdir/file &&
534 unrelated=$(echo unrelated | git hash-object --stdin -w) &&
535 git tag -m foo tag $unrelated &&
536 sha1=$(git rev-parse --verify "$1") &&
537 path=$(echo $sha1 | sed 's|..|&/|') &&
538 rm .git/objects/$path
542 test_expect_success 'fsck notices missing blob' '
543 create_repo_missing HEAD:subdir/file &&
544 test_must_fail git -C missing fsck
547 test_expect_success 'fsck notices missing subtree' '
548 create_repo_missing HEAD:subdir &&
549 test_must_fail git -C missing fsck
552 test_expect_success 'fsck notices missing root tree' '
553 create_repo_missing HEAD^{tree} &&
554 test_must_fail git -C missing fsck
557 test_expect_success 'fsck notices missing parent' '
558 create_repo_missing HEAD^ &&
559 test_must_fail git -C missing fsck
562 test_expect_success 'fsck notices missing tagged object' '
563 create_repo_missing tag^{blob} &&
564 test_must_fail git -C missing fsck
567 test_expect_success 'fsck notices ref pointing to missing commit' '
568 create_repo_missing HEAD &&
569 test_must_fail git -C missing fsck
572 test_expect_success 'fsck notices ref pointing to missing tag' '
573 create_repo_missing tag &&
574 test_must_fail git -C missing fsck
577 test_expect_success 'fsck --connectivity-only' '
578 rm -rf connectivity-only &&
579 git init connectivity-only &&
581 cd connectivity-only &&
586 # Drop the index now; we want to be sure that we
587 # recursively notice the broken objects
588 # because they are reachable from refs, not because
589 # they are in the index.
592 # corrupt the blob, but in a way that we can still identify
593 # its type. That lets us see that --connectivity-only is
594 # not actually looking at the contents, but leaves it
595 # free to examine the type if it chooses.
596 empty=.git/objects/$(test_oid_to_path $EMPTY_BLOB) &&
597 blob=$(echo unrelated | git hash-object -w --stdin) &&
598 mv -f $(sha1_file $blob) $empty &&
600 test_must_fail git fsck --strict &&
601 git fsck --strict --connectivity-only &&
602 tree=$(git rev-parse HEAD:) &&
604 tree=.git/objects/${tree%$suffix}/$suffix &&
606 echo invalid >$tree &&
607 test_must_fail git fsck --strict --connectivity-only
611 test_expect_success 'fsck --connectivity-only with explicit head' '
612 rm -rf connectivity-only &&
613 git init connectivity-only &&
615 cd connectivity-only &&
618 tree=$(git rev-parse HEAD^{tree}) &&
619 remove_object $(git rev-parse HEAD:foo.t) &&
620 test_must_fail git fsck --connectivity-only $tree
624 test_expect_success 'fsck --name-objects' '
625 rm -rf name-objects &&
626 git init name-objects &&
629 test_commit julius caesar.t &&
630 test_commit augustus &&
631 test_commit caesar &&
632 remove_object $(git rev-parse julius:caesar.t) &&
633 test_must_fail git fsck --name-objects >out &&
634 tree=$(git rev-parse --verify julius:) &&
635 test_i18ngrep -E "$tree \((refs/heads/master|HEAD)@\{[0-9]*\}:" out
639 test_expect_success 'alternate objects are correctly blamed' '
640 test_when_finished "rm -rf alt.git .git/objects/info/alternates" &&
641 name=$(test_oid numeric) &&
642 path=$(test_oid_to_path "$name") &&
643 git init --bare alt.git &&
644 echo "../../alt.git/objects" >.git/objects/info/alternates &&
645 mkdir alt.git/objects/$(dirname $path) &&
646 >alt.git/objects/$(dirname $path)/$(basename $path) &&
647 test_must_fail git fsck >out 2>&1 &&
648 test_i18ngrep alt.git out
651 test_expect_success 'fsck errors in packed objects' '
652 git cat-file commit HEAD >basis &&
653 sed "s/</one/" basis >one &&
654 sed "s/</foo/" basis >two &&
655 one=$(git hash-object -t commit -w one) &&
656 two=$(git hash-object -t commit -w two) &&
661 } | git pack-objects .git/objects/pack/pack
663 test_when_finished "rm -f .git/objects/pack/pack-$pack.*" &&
664 remove_object $one &&
665 remove_object $two &&
666 test_must_fail git fsck 2>out &&
667 test_i18ngrep "error in commit $one.* - bad name" out &&
668 test_i18ngrep "error in commit $two.* - bad name" out &&
672 test_expect_success 'fsck fails on corrupt packfile' '
673 hsh=$(git commit-tree -m mycommit HEAD^{tree}) &&
674 pack=$(echo $hsh | git pack-objects .git/objects/pack/pack) &&
676 # Corrupt the first byte of the first object. (It contains 3 type bits,
677 # at least one of which is not zero, so setting the first byte to 0 is
679 chmod a+w .git/objects/pack/pack-$pack.pack &&
680 printf '\0' | dd of=.git/objects/pack/pack-$pack.pack bs=1 conv=notrunc seek=12 &&
682 test_when_finished "rm -f .git/objects/pack/pack-$pack.*" &&
683 remove_object $hsh &&
684 test_must_fail git fsck 2>out &&
685 test_i18ngrep "checksum mismatch" out
688 test_expect_success 'fsck finds problems in duplicate loose objects' '
689 rm -rf broken-duplicate &&
690 git init broken-duplicate &&
692 cd broken-duplicate &&
693 test_commit duplicate &&
694 # no "-d" here, so we end up with duplicates
696 # now corrupt the loose copy
697 file=$(sha1_file "$(git rev-parse HEAD)") &&
699 echo broken >"$file" &&
700 test_must_fail git fsck
704 test_expect_success 'fsck detects trailing loose garbage (commit)' '
705 git cat-file commit HEAD >basis &&
706 echo bump-commit-sha1 >>basis &&
707 commit=$(git hash-object -w -t commit basis) &&
708 file=$(sha1_file $commit) &&
709 test_when_finished "remove_object $commit" &&
711 echo garbage >>"$file" &&
712 test_must_fail git fsck 2>out &&
713 test_i18ngrep "garbage.*$commit" out
716 test_expect_success 'fsck detects trailing loose garbage (large blob)' '
717 blob=$(echo trailing | git hash-object -w --stdin) &&
718 file=$(sha1_file $blob) &&
719 test_when_finished "remove_object $blob" &&
721 echo garbage >>"$file" &&
722 test_must_fail git -c core.bigfilethreshold=5 fsck 2>out &&
723 test_i18ngrep "garbage.*$blob" out
726 test_expect_success 'fsck detects truncated loose object' '
727 # make it big enough that we know we will truncate in the data
728 # portion, not the header
729 test-tool genrandom truncate 4096 >file &&
730 blob=$(git hash-object -w file) &&
731 file=$(sha1_file $blob) &&
732 test_when_finished "remove_object $blob" &&
733 test_copy_bytes 1024 <"$file" >tmp &&
737 # check both regular and streaming code paths
738 test_must_fail git fsck 2>out &&
739 test_i18ngrep corrupt.*$blob out &&
741 test_must_fail git -c core.bigfilethreshold=128 fsck 2>out &&
742 test_i18ngrep corrupt.*$blob out
745 # for each of type, we have one version which is referenced by another object
746 # (and so while unreachable, not dangling), and another variant which really is
748 test_expect_success 'create dangling-object repository' '
752 blob=$(echo not-dangling | git hash-object -w --stdin) &&
753 dblob=$(echo dangling | git hash-object -w --stdin) &&
754 tree=$(printf "100644 blob %s\t%s\n" $blob one | git mktree) &&
755 dtree=$(printf "100644 blob %s\t%s\n" $blob two | git mktree) &&
756 commit=$(git commit-tree $tree) &&
757 dcommit=$(git commit-tree -p $commit $tree) &&
761 dangling commit $dcommit
767 test_expect_success 'fsck notices dangling objects' '
771 # the output order is non-deterministic, as it comes from a hash
772 sort <actual >actual.sorted &&
773 test_i18ncmp expect actual.sorted
777 test_expect_success 'fsck --connectivity-only notices dangling objects' '
780 git fsck --connectivity-only >actual &&
781 # the output order is non-deterministic, as it comes from a hash
782 sort <actual >actual.sorted &&
783 test_i18ncmp expect actual.sorted
787 test_expect_success 'fsck $name notices bogus $name' '
788 test_must_fail git fsck bogus &&
789 test_must_fail git fsck $ZERO_OID
792 test_expect_success 'bogus head does not fallback to all heads' '
793 # set up a case that will cause a reachability complaint
794 echo to-be-deleted >foo &&
796 blob=$(git rev-parse :foo) &&
797 test_when_finished "git rm --cached foo" &&
798 remove_object $blob &&
799 test_must_fail git fsck $ZERO_OID >out 2>&1 &&
803 # Corrupt the checksum on the index.
804 # Add 1 to the last byte in the SHA.
805 corrupt_index_checksum () {
808 open my $fh, "+<", ".git/index" or die "open: $!";
810 seek $fh, -1, SEEK_END or die "seek: $!";
811 read $fh, my $in_byte, 1 or die "read: $!";
813 $in_value = unpack("C", $in_byte);
814 $out_value = ($in_value + 1) & 255;
816 $out_byte = pack("C", $out_value);
818 seek $fh, -1, SEEK_END or die "seek: $!";
820 close $fh or die "close: $!";
824 # Corrupt the checksum on the index and then
825 # verify that only fsck notices.
826 test_expect_success 'detect corrupt index file in fsck' '
827 cp .git/index .git/index.backup &&
828 test_when_finished "mv .git/index.backup .git/index" &&
829 corrupt_index_checksum &&
830 test_must_fail git fsck --cache 2>errors &&
831 test_i18ngrep "bad index file" errors