3 test_description='git fsck random collection of tests
11 test_expect_success setup '
12 git config gc.auto 0 &&
13 git config i18n.commitencoding ISO-8859-1 &&
14 test_commit A fileA one &&
15 git config --unset i18n.commitencoding &&
16 git checkout HEAD^0 &&
17 test_commit B fileB two &&
19 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
35 test_expect_success 'HEAD is part of refs, valid objects appear valid' '
36 git fsck >actual 2>&1 &&
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' '
46 echo "$*" | sed "s#..#.git/objects/&/#"
50 file=$(sha1_file "$*") &&
56 test_expect_success 'object with bad sha1' '
57 sha=$(echo blob | git hash-object -w --stdin) &&
58 old=$(echo $sha | sed "s+^..+&/+") &&
59 new=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&
60 sha="$(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 $cmt &&
70 test_when_finished "git update-ref -d refs/heads/bogus" &&
72 test_must_fail git fsck 2>out &&
74 grep "$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 grep "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 0000000000000000000000000000000000000000 >.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 grep "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 grep "HEAD points to something strange" out
105 test_expect_success 'email without @ is okay' '
106 git cat-file commit HEAD >basis &&
107 sed "s/@/AT/" basis >okay &&
108 new=$(git hash-object -t commit -w --stdin <okay) &&
109 test_when_finished "remove_object $new" &&
110 git update-ref refs/heads/bogus "$new" &&
111 test_when_finished "git update-ref -d refs/heads/bogus" &&
114 ! grep "commit $new" out
117 test_expect_success 'email with embedded > is not okay' '
118 git cat-file commit HEAD >basis &&
119 sed "s/@[a-z]/&>/" basis >bad-email &&
120 new=$(git hash-object -t commit -w --stdin <bad-email) &&
121 test_when_finished "remove_object $new" &&
122 git update-ref refs/heads/bogus "$new" &&
123 test_when_finished "git update-ref -d refs/heads/bogus" &&
124 test_must_fail git fsck 2>out &&
126 grep "error in commit $new" out
129 test_expect_success 'missing < email delimiter is reported nicely' '
130 git cat-file commit HEAD >basis &&
131 sed "s/<//" basis >bad-email-2 &&
132 new=$(git hash-object -t commit -w --stdin <bad-email-2) &&
133 test_when_finished "remove_object $new" &&
134 git update-ref refs/heads/bogus "$new" &&
135 test_when_finished "git update-ref -d refs/heads/bogus" &&
136 test_must_fail git fsck 2>out &&
138 grep "error in commit $new.* - bad name" out
141 test_expect_success 'missing email is reported nicely' '
142 git cat-file commit HEAD >basis &&
143 sed "s/[a-z]* <[^>]*>//" basis >bad-email-3 &&
144 new=$(git hash-object -t commit -w --stdin <bad-email-3) &&
145 test_when_finished "remove_object $new" &&
146 git update-ref refs/heads/bogus "$new" &&
147 test_when_finished "git update-ref -d refs/heads/bogus" &&
148 test_must_fail git fsck 2>out &&
150 grep "error in commit $new.* - missing email" out
153 test_expect_success '> in name is reported' '
154 git cat-file commit HEAD >basis &&
155 sed "s/ </> </" basis >bad-email-4 &&
156 new=$(git hash-object -t commit -w --stdin <bad-email-4) &&
157 test_when_finished "remove_object $new" &&
158 git update-ref refs/heads/bogus "$new" &&
159 test_when_finished "git update-ref -d refs/heads/bogus" &&
160 test_must_fail git fsck 2>out &&
162 grep "error in commit $new" out
166 test_expect_success 'integer overflow in timestamps is reported' '
167 git cat-file commit HEAD >basis &&
168 sed "s/^\\(author .*>\\) [0-9]*/\\1 18446744073709551617/" \
169 <basis >bad-timestamp &&
170 new=$(git hash-object -t commit -w --stdin <bad-timestamp) &&
171 test_when_finished "remove_object $new" &&
172 git update-ref refs/heads/bogus "$new" &&
173 test_when_finished "git update-ref -d refs/heads/bogus" &&
174 test_must_fail git fsck 2>out &&
176 grep "error in commit $new.*integer overflow" out
179 test_expect_success 'commit with NUL in header' '
180 git cat-file commit HEAD >basis &&
181 sed "s/author ./author Q/" <basis | q_to_nul >commit-NUL-header &&
182 new=$(git hash-object -t commit -w --stdin <commit-NUL-header) &&
183 test_when_finished "remove_object $new" &&
184 git update-ref refs/heads/bogus "$new" &&
185 test_when_finished "git update-ref -d refs/heads/bogus" &&
186 test_must_fail git fsck 2>out &&
188 grep "error in commit $new.*unterminated header: NUL at offset" out
191 test_expect_success 'malformatted tree object' '
192 test_when_finished "git update-ref -d refs/tags/wrong" &&
193 test_when_finished "remove_object \$T" &&
195 GIT_INDEX_FILE=test-index &&
196 export GIT_INDEX_FILE &&
200 T=$(git write-tree) &&
202 git cat-file tree $T &&
205 git hash-object -w -t tree --stdin
207 test_must_fail git fsck 2>out &&
208 grep "error in tree .*contains duplicate file entries" out
211 test_expect_success 'tag pointing to nonexistent' '
212 cat >invalid-tag <<-\EOF &&
213 object ffffffffffffffffffffffffffffffffffffffff
216 tagger T A Gger <tagger@example.com> 1234567890 -0000
218 This is an invalid tag.
221 tag=$(git hash-object -t tag -w --stdin <invalid-tag) &&
222 test_when_finished "remove_object $tag" &&
223 echo $tag >.git/refs/tags/invalid &&
224 test_when_finished "git update-ref -d refs/tags/invalid" &&
225 test_must_fail git fsck --tags >out &&
227 grep "broken link" out
230 test_expect_success 'tag pointing to something else than its type' '
231 sha=$(echo blob | git hash-object -w --stdin) &&
232 test_when_finished "remove_object $sha" &&
233 cat >wrong-tag <<-EOF &&
237 tagger T A Gger <tagger@example.com> 1234567890 -0000
239 This is an invalid tag.
242 tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
243 test_when_finished "remove_object $tag" &&
244 echo $tag >.git/refs/tags/wrong &&
245 test_when_finished "git update-ref -d refs/tags/wrong" &&
246 test_must_fail git fsck --tags
249 test_expect_success 'tag with incorrect tag name & missing tagger' '
250 sha=$(git rev-parse HEAD) &&
251 cat >wrong-tag <<-EOF &&
254 tag wrong name format
256 This is an invalid tag.
259 tag=$(git hash-object -t tag -w --stdin <wrong-tag) &&
260 test_when_finished "remove_object $tag" &&
261 echo $tag >.git/refs/tags/wrong &&
262 test_when_finished "git update-ref -d refs/tags/wrong" &&
263 git fsck --tags 2>out &&
265 cat >expect <<-EOF &&
266 warning in tag $tag: badTagName: invalid '\''tag'\'' name: wrong name format
267 warning in tag $tag: missingTaggerEntry: invalid format - expected '\''tagger'\'' line
272 test_expect_success 'tag with bad tagger' '
273 sha=$(git rev-parse HEAD) &&
274 cat >wrong-tag <<-EOF &&
278 tagger Bad Tagger Name
280 This is an invalid tag.
283 tag=$(git hash-object --literally -t tag -w --stdin <wrong-tag) &&
284 test_when_finished "remove_object $tag" &&
285 echo $tag >.git/refs/tags/wrong &&
286 test_when_finished "git update-ref -d refs/tags/wrong" &&
287 test_must_fail git fsck --tags 2>out &&
288 grep "error in tag .*: invalid author/committer" out
291 test_expect_success 'tag with NUL in header' '
292 sha=$(git rev-parse HEAD) &&
293 q_to_nul >tag-NUL-header <<-EOF &&
296 tag contains-Q-in-header
297 tagger T A Gger <tagger@example.com> 1234567890 -0000
299 This is an invalid tag.
302 tag=$(git hash-object --literally -t tag -w --stdin <tag-NUL-header) &&
303 test_when_finished "remove_object $tag" &&
304 echo $tag >.git/refs/tags/wrong &&
305 test_when_finished "git update-ref -d refs/tags/wrong" &&
306 test_must_fail git fsck --tags 2>out &&
308 grep "error in tag $tag.*unterminated header: NUL at offset" out
311 test_expect_success 'cleaned up' '
312 git fsck >actual 2>&1 &&
313 test_cmp empty actual
316 test_expect_success 'rev-list --verify-objects' '
317 git rev-list --verify-objects --all >/dev/null 2>out &&
321 test_expect_success 'rev-list --verify-objects with bad sha1' '
322 sha=$(echo blob | git hash-object -w --stdin) &&
323 old=$(echo $sha | sed "s+^..+&/+") &&
324 new=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&
325 sha="$(dirname $new)$(basename $new)" &&
326 mv .git/objects/$old .git/objects/$new &&
327 test_when_finished "remove_object $sha" &&
328 git update-index --add --cacheinfo 100644 $sha foo &&
329 test_when_finished "git read-tree -u --reset HEAD" &&
330 tree=$(git write-tree) &&
331 test_when_finished "remove_object $tree" &&
332 cmt=$(echo bogus | git commit-tree $tree) &&
333 test_when_finished "remove_object $cmt" &&
334 git update-ref refs/heads/bogus $cmt &&
335 test_when_finished "git update-ref -d refs/heads/bogus" &&
337 test_might_fail git rev-list --verify-objects refs/heads/bogus >/dev/null 2>out &&
339 grep -q "error: sha1 mismatch 63ffffffffffffffffffffffffffffffffffffff" out
342 test_expect_success 'force fsck to ignore double author' '
343 git cat-file commit HEAD >basis &&
344 sed "s/^author .*/&,&/" <basis | tr , \\n >multiple-authors &&
345 new=$(git hash-object -t commit -w --stdin <multiple-authors) &&
346 test_when_finished "remove_object $new" &&
347 git update-ref refs/heads/bogus "$new" &&
348 test_when_finished "git update-ref -d refs/heads/bogus" &&
349 test_must_fail git fsck &&
350 git -c fsck.multipleAuthors=ignore fsck
354 _bz5="$_bz$_bz$_bz$_bz$_bz"
355 _bz20="$_bz5$_bz5$_bz5$_bz5"
357 test_expect_success 'fsck notices blob entry pointing to null sha1' '
358 (git init null-blob &&
360 sha=$(printf "100644 file$_bz$_bz20" |
361 git hash-object -w --stdin -t tree) &&
364 grep "warning.*null sha1" out
368 test_expect_success 'fsck notices submodule entry pointing to null sha1' '
369 (git init null-commit &&
371 sha=$(printf "160000 submodule$_bz$_bz20" |
372 git hash-object -w --stdin -t tree) &&
375 grep "warning.*null sha1" out
379 while read name path pretty; do
380 while read mode type; do
382 test_expect_success "fsck notices $pretty as $type" '
384 git init $name-$type &&
386 echo content >file &&
388 git commit -m base &&
389 blob=$(git rev-parse :file) &&
390 tree=$(git rev-parse HEAD^{tree}) &&
391 value=$(eval "echo \$$type") &&
392 printf "$mode $type %s\t%s" "$value" "$path" >bad &&
393 bad_tree=$(git mktree <bad) &&
396 grep "warning.*tree $bad_tree" out
407 dotgit-unicode .gI${u200c}T .gI{u200c}T
411 dot-backslash-case .\\\\.GIT\\\\foobar
412 dotgit-case-backslash .git\\\\foobar
415 test_expect_success 'fsck allows .Ňit' '
417 git init not-dotgit &&
419 echo content >file &&
421 git commit -m base &&
422 blob=$(git rev-parse :file) &&
423 printf "100644 blob $blob\t.\\305\\207it" >tree &&
424 tree=$(git mktree <tree) &&
426 test_line_count = 0 err
430 test_expect_success 'NUL in commit' '
431 rm -fr nul-in-commit &&
432 git init nul-in-commit &&
435 git commit --allow-empty -m "initial commitQNUL after message" &&
436 git cat-file commit HEAD >original &&
437 q_to_nul <original >munged &&
438 git hash-object -w -t commit --stdin <munged >name &&
439 git branch bad $(cat name) &&
441 test_must_fail git -c fsck.nulInCommit=error fsck 2>warn.1 &&
442 grep nulInCommit warn.1 &&
444 grep nulInCommit warn.2
448 # create a static test repo which is broken by omitting
449 # one particular object ($1, which is looked up via rev-parse
450 # in the new repository).
451 create_repo_missing () {
456 git commit -m one --allow-empty &&
458 echo content >subdir/file &&
459 git add subdir/file &&
461 unrelated=$(echo unrelated | git hash-object --stdin -w) &&
462 git tag -m foo tag $unrelated &&
463 sha1=$(git rev-parse --verify "$1") &&
464 path=$(echo $sha1 | sed 's|..|&/|') &&
465 rm .git/objects/$path
469 test_expect_success 'fsck notices missing blob' '
470 create_repo_missing HEAD:subdir/file &&
471 test_must_fail git -C missing fsck
474 test_expect_success 'fsck notices missing subtree' '
475 create_repo_missing HEAD:subdir &&
476 test_must_fail git -C missing fsck
479 test_expect_success 'fsck notices missing root tree' '
480 create_repo_missing HEAD^{tree} &&
481 test_must_fail git -C missing fsck
484 test_expect_success 'fsck notices missing parent' '
485 create_repo_missing HEAD^ &&
486 test_must_fail git -C missing fsck
489 test_expect_success 'fsck notices missing tagged object' '
490 create_repo_missing tag^{blob} &&
491 test_must_fail git -C missing fsck
494 test_expect_success 'fsck notices ref pointing to missing commit' '
495 create_repo_missing HEAD &&
496 test_must_fail git -C missing fsck
499 test_expect_success 'fsck notices ref pointing to missing tag' '
500 create_repo_missing tag &&
501 test_must_fail git -C missing fsck
504 test_expect_success 'fsck --connectivity-only' '
505 rm -rf connectivity-only &&
506 git init connectivity-only &&
508 cd connectivity-only &&
512 empty=.git/objects/e6/9de29bb2d1d6434b8b29ae775ad8c2e48c5391 &&
514 echo invalid >$empty &&
515 test_must_fail git fsck --strict &&
516 git fsck --strict --connectivity-only &&
517 tree=$(git rev-parse HEAD:) &&
519 tree=.git/objects/${tree%$suffix}/$suffix &&
521 echo invalid >$tree &&
522 test_must_fail git fsck --strict --connectivity-only
526 remove_loose_object () {
527 sha1="$(git rev-parse "$1")" &&
528 remainder=${sha1#??} &&
529 firsttwo=${sha1%$remainder} &&
530 rm .git/objects/$firsttwo/$remainder
533 test_expect_success 'fsck --name-objects' '
534 rm -rf name-objects &&
535 git init name-objects &&
538 test_commit julius caesar.t &&
539 test_commit augustus &&
540 test_commit caesar &&
541 remove_loose_object $(git rev-parse julius:caesar.t) &&
542 test_must_fail git fsck --name-objects >out &&
543 tree=$(git rev-parse --verify julius:) &&
544 grep "$tree (\(refs/heads/master\|HEAD\)@{[0-9]*}:" out