2 #include "object-store.h"
12 #include "sha1-array.h"
16 #include "submodule-config.h"
20 static struct oidset gitmodules_found
= OIDSET_INIT
;
21 static struct oidset gitmodules_done
= OIDSET_INIT
;
26 #define FOREACH_MSG_ID(FUNC) \
28 FUNC(NUL_IN_HEADER, FATAL) \
29 FUNC(UNTERMINATED_HEADER, FATAL) \
31 FUNC(BAD_DATE, ERROR) \
32 FUNC(BAD_DATE_OVERFLOW, ERROR) \
33 FUNC(BAD_EMAIL, ERROR) \
34 FUNC(BAD_NAME, ERROR) \
35 FUNC(BAD_OBJECT_SHA1, ERROR) \
36 FUNC(BAD_PARENT_SHA1, ERROR) \
37 FUNC(BAD_TAG_OBJECT, ERROR) \
38 FUNC(BAD_TIMEZONE, ERROR) \
39 FUNC(BAD_TREE, ERROR) \
40 FUNC(BAD_TREE_SHA1, ERROR) \
41 FUNC(BAD_TYPE, ERROR) \
42 FUNC(DUPLICATE_ENTRIES, ERROR) \
43 FUNC(MISSING_AUTHOR, ERROR) \
44 FUNC(MISSING_COMMITTER, ERROR) \
45 FUNC(MISSING_EMAIL, ERROR) \
46 FUNC(MISSING_GRAFT, ERROR) \
47 FUNC(MISSING_NAME_BEFORE_EMAIL, ERROR) \
48 FUNC(MISSING_OBJECT, ERROR) \
49 FUNC(MISSING_PARENT, ERROR) \
50 FUNC(MISSING_SPACE_BEFORE_DATE, ERROR) \
51 FUNC(MISSING_SPACE_BEFORE_EMAIL, ERROR) \
52 FUNC(MISSING_TAG, ERROR) \
53 FUNC(MISSING_TAG_ENTRY, ERROR) \
54 FUNC(MISSING_TAG_OBJECT, ERROR) \
55 FUNC(MISSING_TREE, ERROR) \
56 FUNC(MISSING_TREE_OBJECT, ERROR) \
57 FUNC(MISSING_TYPE, ERROR) \
58 FUNC(MISSING_TYPE_ENTRY, ERROR) \
59 FUNC(MULTIPLE_AUTHORS, ERROR) \
60 FUNC(TAG_OBJECT_NOT_TAG, ERROR) \
61 FUNC(TREE_NOT_SORTED, ERROR) \
62 FUNC(UNKNOWN_TYPE, ERROR) \
63 FUNC(ZERO_PADDED_DATE, ERROR) \
64 FUNC(GITMODULES_MISSING, ERROR) \
65 FUNC(GITMODULES_BLOB, ERROR) \
66 FUNC(GITMODULES_LARGE, ERROR) \
67 FUNC(GITMODULES_NAME, ERROR) \
68 FUNC(GITMODULES_SYMLINK, ERROR) \
70 FUNC(BAD_FILEMODE, WARN) \
71 FUNC(EMPTY_NAME, WARN) \
72 FUNC(FULL_PATHNAME, WARN) \
74 FUNC(HAS_DOTDOT, WARN) \
75 FUNC(HAS_DOTGIT, WARN) \
76 FUNC(NULL_SHA1, WARN) \
77 FUNC(ZERO_PADDED_FILEMODE, WARN) \
78 FUNC(NUL_IN_COMMIT, WARN) \
79 /* infos (reported as warnings, but ignored by default) */ \
80 FUNC(GITMODULES_PARSE, INFO) \
81 FUNC(BAD_TAG_NAME, INFO) \
82 FUNC(MISSING_TAGGER_ENTRY, INFO)
84 #define MSG_ID(id, msg_type) FSCK_MSG_##id,
86 FOREACH_MSG_ID(MSG_ID
)
92 #define MSG_ID(id, msg_type) { STR(id), NULL, NULL, FSCK_##msg_type },
94 const char *id_string
;
95 const char *downcased
;
96 const char *camelcased
;
98 } msg_id_info
[FSCK_MSG_MAX
+ 1] = {
99 FOREACH_MSG_ID(MSG_ID
)
100 { NULL
, NULL
, NULL
, -1 }
104 static void prepare_msg_ids(void)
108 if (msg_id_info
[0].downcased
)
111 /* convert id_string to lower case, without underscores. */
112 for (i
= 0; i
< FSCK_MSG_MAX
; i
++) {
113 const char *p
= msg_id_info
[i
].id_string
;
115 char *q
= xmalloc(len
);
117 msg_id_info
[i
].downcased
= q
;
122 *(q
)++ = tolower(*(p
)++);
125 p
= msg_id_info
[i
].id_string
;
127 msg_id_info
[i
].camelcased
= q
;
134 *q
++ = tolower(*p
++);
141 static int parse_msg_id(const char *text
)
147 for (i
= 0; i
< FSCK_MSG_MAX
; i
++)
148 if (!strcmp(text
, msg_id_info
[i
].downcased
))
154 void list_config_fsck_msg_ids(struct string_list
*list
, const char *prefix
)
160 for (i
= 0; i
< FSCK_MSG_MAX
; i
++)
161 list_config_item(list
, prefix
, msg_id_info
[i
].camelcased
);
164 static int fsck_msg_type(enum fsck_msg_id msg_id
,
165 struct fsck_options
*options
)
169 assert(msg_id
>= 0 && msg_id
< FSCK_MSG_MAX
);
171 if (options
->msg_type
)
172 msg_type
= options
->msg_type
[msg_id
];
174 msg_type
= msg_id_info
[msg_id
].msg_type
;
175 if (options
->strict
&& msg_type
== FSCK_WARN
)
176 msg_type
= FSCK_ERROR
;
182 static void init_skiplist(struct fsck_options
*options
, const char *path
)
184 static struct oid_array skiplist
= OID_ARRAY_INIT
;
186 char buffer
[GIT_MAX_HEXSZ
+ 1];
187 struct object_id oid
;
189 if (options
->skiplist
)
190 sorted
= options
->skiplist
->sorted
;
193 options
->skiplist
= &skiplist
;
196 fd
= open(path
, O_RDONLY
);
198 die("Could not open skip list: %s", path
);
201 int result
= read_in_full(fd
, buffer
, sizeof(buffer
));
203 die_errno("Could not read '%s'", path
);
206 if (parse_oid_hex(buffer
, &oid
, &p
) || *p
!= '\n')
207 die("Invalid SHA-1: %s", buffer
);
208 oid_array_append(&skiplist
, &oid
);
209 if (sorted
&& skiplist
.nr
> 1 &&
210 oidcmp(&skiplist
.oid
[skiplist
.nr
- 2],
220 static int parse_msg_type(const char *str
)
222 if (!strcmp(str
, "error"))
224 else if (!strcmp(str
, "warn"))
226 else if (!strcmp(str
, "ignore"))
229 die("Unknown fsck message type: '%s'", str
);
232 int is_valid_msg_type(const char *msg_id
, const char *msg_type
)
234 if (parse_msg_id(msg_id
) < 0)
236 parse_msg_type(msg_type
);
240 void fsck_set_msg_type(struct fsck_options
*options
,
241 const char *msg_id
, const char *msg_type
)
243 int id
= parse_msg_id(msg_id
), type
;
246 die("Unhandled message id: %s", msg_id
);
247 type
= parse_msg_type(msg_type
);
249 if (type
!= FSCK_ERROR
&& msg_id_info
[id
].msg_type
== FSCK_FATAL
)
250 die("Cannot demote %s to %s", msg_id
, msg_type
);
252 if (!options
->msg_type
) {
255 ALLOC_ARRAY(msg_type
, FSCK_MSG_MAX
);
256 for (i
= 0; i
< FSCK_MSG_MAX
; i
++)
257 msg_type
[i
] = fsck_msg_type(i
, options
);
258 options
->msg_type
= msg_type
;
261 options
->msg_type
[id
] = type
;
264 void fsck_set_msg_types(struct fsck_options
*options
, const char *values
)
266 char *buf
= xstrdup(values
), *to_free
= buf
;
270 int len
= strcspn(buf
, " ,|"), equal
;
280 equal
< len
&& buf
[equal
] != '=' && buf
[equal
] != ':';
282 buf
[equal
] = tolower(buf
[equal
]);
285 if (!strcmp(buf
, "skiplist")) {
287 die("skiplist requires a path");
288 init_skiplist(options
, buf
+ equal
+ 1);
294 die("Missing '=': '%s'", buf
);
296 fsck_set_msg_type(options
, buf
, buf
+ equal
+ 1);
302 static void append_msg_id(struct strbuf
*sb
, const char *msg_id
)
305 char c
= *(msg_id
)++;
310 strbuf_addch(sb
, tolower(c
));
313 strbuf_addch(sb
, *(msg_id
)++);
317 strbuf_addstr(sb
, ": ");
320 static int object_on_skiplist(struct fsck_options
*opts
, struct object
*obj
)
322 if (opts
&& opts
->skiplist
&& obj
)
323 return oid_array_lookup(opts
->skiplist
, &obj
->oid
) >= 0;
327 __attribute__((format (printf
, 4, 5)))
328 static int report(struct fsck_options
*options
, struct object
*object
,
329 enum fsck_msg_id id
, const char *fmt
, ...)
332 struct strbuf sb
= STRBUF_INIT
;
333 int msg_type
= fsck_msg_type(id
, options
), result
;
335 if (msg_type
== FSCK_IGNORE
)
338 if (object_on_skiplist(options
, object
))
341 if (msg_type
== FSCK_FATAL
)
342 msg_type
= FSCK_ERROR
;
343 else if (msg_type
== FSCK_INFO
)
344 msg_type
= FSCK_WARN
;
346 append_msg_id(&sb
, msg_id_info
[id
].id_string
);
349 strbuf_vaddf(&sb
, fmt
, ap
);
350 result
= options
->error_func(options
, object
, msg_type
, sb
.buf
);
357 static char *get_object_name(struct fsck_options
*options
, struct object
*obj
)
359 if (!options
->object_names
)
361 return lookup_decoration(options
->object_names
, obj
);
364 static void put_object_name(struct fsck_options
*options
, struct object
*obj
,
365 const char *fmt
, ...)
368 struct strbuf buf
= STRBUF_INIT
;
371 if (!options
->object_names
)
373 existing
= lookup_decoration(options
->object_names
, obj
);
377 strbuf_vaddf(&buf
, fmt
, ap
);
378 add_decoration(options
->object_names
, obj
, strbuf_detach(&buf
, NULL
));
382 static const char *describe_object(struct fsck_options
*o
, struct object
*obj
)
384 static struct strbuf buf
= STRBUF_INIT
;
388 strbuf_addstr(&buf
, oid_to_hex(&obj
->oid
));
389 if (o
->object_names
&& (name
= lookup_decoration(o
->object_names
, obj
)))
390 strbuf_addf(&buf
, " (%s)", name
);
395 static int fsck_walk_tree(struct tree
*tree
, void *data
, struct fsck_options
*options
)
397 struct tree_desc desc
;
398 struct name_entry entry
;
402 if (parse_tree(tree
))
405 name
= get_object_name(options
, &tree
->object
);
406 if (init_tree_desc_gently(&desc
, tree
->buffer
, tree
->size
))
408 while (tree_entry_gently(&desc
, &entry
)) {
412 if (S_ISGITLINK(entry
.mode
))
415 if (S_ISDIR(entry
.mode
)) {
416 obj
= (struct object
*)lookup_tree(entry
.oid
);
418 put_object_name(options
, obj
, "%s%s/", name
,
420 result
= options
->walk(obj
, OBJ_TREE
, data
, options
);
422 else if (S_ISREG(entry
.mode
) || S_ISLNK(entry
.mode
)) {
423 obj
= (struct object
*)lookup_blob(entry
.oid
);
425 put_object_name(options
, obj
, "%s%s", name
,
427 result
= options
->walk(obj
, OBJ_BLOB
, data
, options
);
430 result
= error("in tree %s: entry %s has bad mode %.6o",
431 describe_object(options
, &tree
->object
), entry
.path
, entry
.mode
);
441 static int fsck_walk_commit(struct commit
*commit
, void *data
, struct fsck_options
*options
)
443 int counter
= 0, generation
= 0, name_prefix_len
= 0;
444 struct commit_list
*parents
;
449 if (parse_commit(commit
))
452 name
= get_object_name(options
, &commit
->object
);
454 put_object_name(options
, &get_commit_tree(commit
)->object
,
457 result
= options
->walk((struct object
*)get_commit_tree(commit
),
458 OBJ_TREE
, data
, options
);
463 parents
= commit
->parents
;
464 if (name
&& parents
) {
465 int len
= strlen(name
), power
;
467 if (len
&& name
[len
- 1] == '^') {
469 name_prefix_len
= len
- 1;
471 else { /* parse ~<generation> suffix */
472 for (generation
= 0, power
= 1;
473 len
&& isdigit(name
[len
- 1]);
475 generation
+= power
* (name
[--len
] - '0');
476 if (power
> 1 && len
&& name
[len
- 1] == '~')
477 name_prefix_len
= len
- 1;
483 struct object
*obj
= &parents
->item
->object
;
486 put_object_name(options
, obj
, "%s^%d",
488 else if (generation
> 0)
489 put_object_name(options
, obj
, "%.*s~%d",
490 name_prefix_len
, name
, generation
+ 1);
492 put_object_name(options
, obj
, "%s^", name
);
494 result
= options
->walk((struct object
*)parents
->item
, OBJ_COMMIT
, data
, options
);
499 parents
= parents
->next
;
504 static int fsck_walk_tag(struct tag
*tag
, void *data
, struct fsck_options
*options
)
506 char *name
= get_object_name(options
, &tag
->object
);
511 put_object_name(options
, tag
->tagged
, "%s", name
);
512 return options
->walk(tag
->tagged
, OBJ_ANY
, data
, options
);
515 int fsck_walk(struct object
*obj
, void *data
, struct fsck_options
*options
)
520 if (obj
->type
== OBJ_NONE
)
521 parse_object(&obj
->oid
);
527 return fsck_walk_tree((struct tree
*)obj
, data
, options
);
529 return fsck_walk_commit((struct commit
*)obj
, data
, options
);
531 return fsck_walk_tag((struct tag
*)obj
, data
, options
);
533 error("Unknown object type for %s", describe_object(options
, obj
));
539 * The entries in a tree are ordered in the _path_ order,
540 * which means that a directory entry is ordered by adding
541 * a slash to the end of it.
543 * So a directory called "a" is ordered _after_ a file
544 * called "a.c", because "a/" sorts after "a.c".
546 #define TREE_UNORDERED (-1)
547 #define TREE_HAS_DUPS (-2)
549 static int verify_ordered(unsigned mode1
, const char *name1
, unsigned mode2
, const char *name2
)
551 int len1
= strlen(name1
);
552 int len2
= strlen(name2
);
553 int len
= len1
< len2
? len1
: len2
;
554 unsigned char c1
, c2
;
557 cmp
= memcmp(name1
, name2
, len
);
561 return TREE_UNORDERED
;
564 * Ok, the first <len> characters are the same.
565 * Now we need to order the next one, but turn
566 * a '\0' into a '/' for a directory entry.
572 * git-write-tree used to write out a nonsense tree that has
573 * entries with the same name, one blob and one tree. Make
574 * sure we do not have duplicate entries.
576 return TREE_HAS_DUPS
;
577 if (!c1
&& S_ISDIR(mode1
))
579 if (!c2
&& S_ISDIR(mode2
))
581 return c1
< c2
? 0 : TREE_UNORDERED
;
584 static int fsck_tree(struct tree
*item
, struct fsck_options
*options
)
587 int has_null_sha1
= 0;
588 int has_full_path
= 0;
589 int has_empty_name
= 0;
593 int has_zero_pad
= 0;
594 int has_bad_modes
= 0;
595 int has_dup_entries
= 0;
596 int not_properly_sorted
= 0;
597 struct tree_desc desc
;
601 if (init_tree_desc_gently(&desc
, item
->buffer
, item
->size
)) {
602 retval
+= report(options
, &item
->object
, FSCK_MSG_BAD_TREE
, "cannot be parsed as a tree");
612 const struct object_id
*oid
;
614 oid
= tree_entry_extract(&desc
, &name
, &mode
);
616 has_null_sha1
|= is_null_oid(oid
);
617 has_full_path
|= !!strchr(name
, '/');
618 has_empty_name
|= !*name
;
619 has_dot
|= !strcmp(name
, ".");
620 has_dotdot
|= !strcmp(name
, "..");
621 has_dotgit
|= is_hfs_dotgit(name
) || is_ntfs_dotgit(name
);
622 has_zero_pad
|= *(char *)desc
.buffer
== '0';
624 if (is_hfs_dotgitmodules(name
) || is_ntfs_dotgitmodules(name
)) {
626 oidset_insert(&gitmodules_found
, oid
);
628 retval
+= report(options
, &item
->object
,
629 FSCK_MSG_GITMODULES_SYMLINK
,
630 ".gitmodules is a symbolic link");
633 if (update_tree_entry_gently(&desc
)) {
634 retval
+= report(options
, &item
->object
, FSCK_MSG_BAD_TREE
, "cannot be parsed as a tree");
649 * This is nonstandard, but we had a few of these
650 * early on when we honored the full set of mode
654 if (!options
->strict
)
662 switch (verify_ordered(o_mode
, o_name
, mode
, name
)) {
664 not_properly_sorted
= 1;
679 retval
+= report(options
, &item
->object
, FSCK_MSG_NULL_SHA1
, "contains entries pointing to null sha1");
681 retval
+= report(options
, &item
->object
, FSCK_MSG_FULL_PATHNAME
, "contains full pathnames");
683 retval
+= report(options
, &item
->object
, FSCK_MSG_EMPTY_NAME
, "contains empty pathname");
685 retval
+= report(options
, &item
->object
, FSCK_MSG_HAS_DOT
, "contains '.'");
687 retval
+= report(options
, &item
->object
, FSCK_MSG_HAS_DOTDOT
, "contains '..'");
689 retval
+= report(options
, &item
->object
, FSCK_MSG_HAS_DOTGIT
, "contains '.git'");
691 retval
+= report(options
, &item
->object
, FSCK_MSG_ZERO_PADDED_FILEMODE
, "contains zero-padded file modes");
693 retval
+= report(options
, &item
->object
, FSCK_MSG_BAD_FILEMODE
, "contains bad file modes");
695 retval
+= report(options
, &item
->object
, FSCK_MSG_DUPLICATE_ENTRIES
, "contains duplicate file entries");
696 if (not_properly_sorted
)
697 retval
+= report(options
, &item
->object
, FSCK_MSG_TREE_NOT_SORTED
, "not properly sorted");
701 static int verify_headers(const void *data
, unsigned long size
,
702 struct object
*obj
, struct fsck_options
*options
)
704 const char *buffer
= (const char *)data
;
707 for (i
= 0; i
< size
; i
++) {
710 return report(options
, obj
,
711 FSCK_MSG_NUL_IN_HEADER
,
712 "unterminated header: NUL at offset %ld", i
);
714 if (i
+ 1 < size
&& buffer
[i
+ 1] == '\n')
720 * We did not find double-LF that separates the header
721 * and the body. Not having a body is not a crime but
722 * we do want to see the terminating LF for the last header
725 if (size
&& buffer
[size
- 1] == '\n')
728 return report(options
, obj
,
729 FSCK_MSG_UNTERMINATED_HEADER
, "unterminated header");
732 static int fsck_ident(const char **ident
, struct object
*obj
, struct fsck_options
*options
)
734 const char *p
= *ident
;
737 *ident
= strchrnul(*ident
, '\n');
742 return report(options
, obj
, FSCK_MSG_MISSING_NAME_BEFORE_EMAIL
, "invalid author/committer line - missing space before email");
743 p
+= strcspn(p
, "<>\n");
745 return report(options
, obj
, FSCK_MSG_BAD_NAME
, "invalid author/committer line - bad name");
747 return report(options
, obj
, FSCK_MSG_MISSING_EMAIL
, "invalid author/committer line - missing email");
749 return report(options
, obj
, FSCK_MSG_MISSING_SPACE_BEFORE_EMAIL
, "invalid author/committer line - missing space before email");
751 p
+= strcspn(p
, "<>\n");
753 return report(options
, obj
, FSCK_MSG_BAD_EMAIL
, "invalid author/committer line - bad email");
756 return report(options
, obj
, FSCK_MSG_MISSING_SPACE_BEFORE_DATE
, "invalid author/committer line - missing space before date");
758 if (*p
== '0' && p
[1] != ' ')
759 return report(options
, obj
, FSCK_MSG_ZERO_PADDED_DATE
, "invalid author/committer line - zero-padded date");
760 if (date_overflows(parse_timestamp(p
, &end
, 10)))
761 return report(options
, obj
, FSCK_MSG_BAD_DATE_OVERFLOW
, "invalid author/committer line - date causes integer overflow");
762 if ((end
== p
|| *end
!= ' '))
763 return report(options
, obj
, FSCK_MSG_BAD_DATE
, "invalid author/committer line - bad date");
765 if ((*p
!= '+' && *p
!= '-') ||
771 return report(options
, obj
, FSCK_MSG_BAD_TIMEZONE
, "invalid author/committer line - bad time zone");
776 static int fsck_commit_buffer(struct commit
*commit
, const char *buffer
,
777 unsigned long size
, struct fsck_options
*options
)
779 struct object_id tree_oid
, oid
;
780 struct commit_graft
*graft
;
781 unsigned parent_count
, parent_line_count
= 0, author_count
;
783 const char *buffer_begin
= buffer
;
786 if (verify_headers(buffer
, size
, &commit
->object
, options
))
789 if (!skip_prefix(buffer
, "tree ", &buffer
))
790 return report(options
, &commit
->object
, FSCK_MSG_MISSING_TREE
, "invalid format - expected 'tree' line");
791 if (parse_oid_hex(buffer
, &tree_oid
, &p
) || *p
!= '\n') {
792 err
= report(options
, &commit
->object
, FSCK_MSG_BAD_TREE_SHA1
, "invalid 'tree' line format - bad sha1");
797 while (skip_prefix(buffer
, "parent ", &buffer
)) {
798 if (parse_oid_hex(buffer
, &oid
, &p
) || *p
!= '\n') {
799 err
= report(options
, &commit
->object
, FSCK_MSG_BAD_PARENT_SHA1
, "invalid 'parent' line format - bad sha1");
806 graft
= lookup_commit_graft(the_repository
, &commit
->object
.oid
);
807 parent_count
= commit_list_count(commit
->parents
);
809 if (graft
->nr_parent
== -1 && !parent_count
)
810 ; /* shallow commit */
811 else if (graft
->nr_parent
!= parent_count
) {
812 err
= report(options
, &commit
->object
, FSCK_MSG_MISSING_GRAFT
, "graft objects missing");
817 if (parent_count
!= parent_line_count
) {
818 err
= report(options
, &commit
->object
, FSCK_MSG_MISSING_PARENT
, "parent objects missing");
824 while (skip_prefix(buffer
, "author ", &buffer
)) {
826 err
= fsck_ident(&buffer
, &commit
->object
, options
);
830 if (author_count
< 1)
831 err
= report(options
, &commit
->object
, FSCK_MSG_MISSING_AUTHOR
, "invalid format - expected 'author' line");
832 else if (author_count
> 1)
833 err
= report(options
, &commit
->object
, FSCK_MSG_MULTIPLE_AUTHORS
, "invalid format - multiple 'author' lines");
836 if (!skip_prefix(buffer
, "committer ", &buffer
))
837 return report(options
, &commit
->object
, FSCK_MSG_MISSING_COMMITTER
, "invalid format - expected 'committer' line");
838 err
= fsck_ident(&buffer
, &commit
->object
, options
);
841 if (!get_commit_tree(commit
)) {
842 err
= report(options
, &commit
->object
, FSCK_MSG_BAD_TREE
, "could not load commit's tree %s", oid_to_hex(&tree_oid
));
846 if (memchr(buffer_begin
, '\0', size
)) {
847 err
= report(options
, &commit
->object
, FSCK_MSG_NUL_IN_COMMIT
,
848 "NUL byte in the commit object body");
855 static int fsck_commit(struct commit
*commit
, const char *data
,
856 unsigned long size
, struct fsck_options
*options
)
858 const char *buffer
= data
? data
: get_commit_buffer(commit
, &size
);
859 int ret
= fsck_commit_buffer(commit
, buffer
, size
, options
);
861 unuse_commit_buffer(commit
, buffer
);
865 static int fsck_tag_buffer(struct tag
*tag
, const char *data
,
866 unsigned long size
, struct fsck_options
*options
)
868 struct object_id oid
;
871 char *to_free
= NULL
, *eol
;
872 struct strbuf sb
= STRBUF_INIT
;
878 enum object_type type
;
881 read_object_file(&tag
->object
.oid
, &type
, &size
);
883 return report(options
, &tag
->object
,
884 FSCK_MSG_MISSING_TAG_OBJECT
,
885 "cannot read tag object");
887 if (type
!= OBJ_TAG
) {
888 ret
= report(options
, &tag
->object
,
889 FSCK_MSG_TAG_OBJECT_NOT_TAG
,
890 "expected tag got %s",
896 ret
= verify_headers(buffer
, size
, &tag
->object
, options
);
900 if (!skip_prefix(buffer
, "object ", &buffer
)) {
901 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_OBJECT
, "invalid format - expected 'object' line");
904 if (parse_oid_hex(buffer
, &oid
, &p
) || *p
!= '\n') {
905 ret
= report(options
, &tag
->object
, FSCK_MSG_BAD_OBJECT_SHA1
, "invalid 'object' line format - bad sha1");
911 if (!skip_prefix(buffer
, "type ", &buffer
)) {
912 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TYPE_ENTRY
, "invalid format - expected 'type' line");
915 eol
= strchr(buffer
, '\n');
917 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TYPE
, "invalid format - unexpected end after 'type' line");
920 if (type_from_string_gently(buffer
, eol
- buffer
, 1) < 0)
921 ret
= report(options
, &tag
->object
, FSCK_MSG_BAD_TYPE
, "invalid 'type' value");
926 if (!skip_prefix(buffer
, "tag ", &buffer
)) {
927 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TAG_ENTRY
, "invalid format - expected 'tag' line");
930 eol
= strchr(buffer
, '\n');
932 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TAG
, "invalid format - unexpected end after 'type' line");
935 strbuf_addf(&sb
, "refs/tags/%.*s", (int)(eol
- buffer
), buffer
);
936 if (check_refname_format(sb
.buf
, 0)) {
937 ret
= report(options
, &tag
->object
, FSCK_MSG_BAD_TAG_NAME
,
938 "invalid 'tag' name: %.*s",
939 (int)(eol
- buffer
), buffer
);
945 if (!skip_prefix(buffer
, "tagger ", &buffer
)) {
946 /* early tags do not contain 'tagger' lines; warn only */
947 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TAGGER_ENTRY
, "invalid format - expected 'tagger' line");
952 ret
= fsck_ident(&buffer
, &tag
->object
, options
);
960 static int fsck_tag(struct tag
*tag
, const char *data
,
961 unsigned long size
, struct fsck_options
*options
)
963 struct object
*tagged
= tag
->tagged
;
966 return report(options
, &tag
->object
, FSCK_MSG_BAD_TAG_OBJECT
, "could not load tagged object");
968 return fsck_tag_buffer(tag
, data
, size
, options
);
971 struct fsck_gitmodules_data
{
973 struct fsck_options
*options
;
977 static int fsck_gitmodules_fn(const char *var
, const char *value
, void *vdata
)
979 struct fsck_gitmodules_data
*data
= vdata
;
980 const char *subsection
, *key
;
984 if (parse_config_key(var
, "submodule", &subsection
, &subsection_len
, &key
) < 0 ||
988 name
= xmemdupz(subsection
, subsection_len
);
989 if (check_submodule_name(name
) < 0)
990 data
->ret
|= report(data
->options
, data
->obj
,
991 FSCK_MSG_GITMODULES_NAME
,
992 "disallowed submodule name: %s",
999 static int fsck_blob(struct blob
*blob
, const char *buf
,
1000 unsigned long size
, struct fsck_options
*options
)
1002 struct fsck_gitmodules_data data
;
1003 struct config_options config_opts
= { 0 };
1005 if (!oidset_contains(&gitmodules_found
, &blob
->object
.oid
))
1007 oidset_insert(&gitmodules_done
, &blob
->object
.oid
);
1009 if (object_on_skiplist(options
, &blob
->object
))
1014 * A missing buffer here is a sign that the caller found the
1015 * blob too gigantic to load into memory. Let's just consider
1018 return report(options
, &blob
->object
,
1019 FSCK_MSG_GITMODULES_LARGE
,
1020 ".gitmodules too large to parse");
1023 data
.obj
= &blob
->object
;
1024 data
.options
= options
;
1026 config_opts
.error_action
= CONFIG_ERROR_SILENT
;
1027 if (git_config_from_mem(fsck_gitmodules_fn
, CONFIG_ORIGIN_BLOB
,
1028 ".gitmodules", buf
, size
, &data
, &config_opts
))
1029 data
.ret
|= report(options
, &blob
->object
,
1030 FSCK_MSG_GITMODULES_PARSE
,
1031 "could not parse gitmodules blob");
1036 int fsck_object(struct object
*obj
, void *data
, unsigned long size
,
1037 struct fsck_options
*options
)
1040 return report(options
, obj
, FSCK_MSG_BAD_OBJECT_SHA1
, "no valid object to fsck");
1042 if (obj
->type
== OBJ_BLOB
)
1043 return fsck_blob((struct blob
*)obj
, data
, size
, options
);
1044 if (obj
->type
== OBJ_TREE
)
1045 return fsck_tree((struct tree
*) obj
, options
);
1046 if (obj
->type
== OBJ_COMMIT
)
1047 return fsck_commit((struct commit
*) obj
, (const char *) data
,
1049 if (obj
->type
== OBJ_TAG
)
1050 return fsck_tag((struct tag
*) obj
, (const char *) data
,
1053 return report(options
, obj
, FSCK_MSG_UNKNOWN_TYPE
, "unknown type '%d' (internal fsck error)",
1057 int fsck_error_function(struct fsck_options
*o
,
1058 struct object
*obj
, int msg_type
, const char *message
)
1060 if (msg_type
== FSCK_WARN
) {
1061 warning("object %s: %s", describe_object(o
, obj
), message
);
1064 error("object %s: %s", describe_object(o
, obj
), message
);
1068 int fsck_finish(struct fsck_options
*options
)
1071 struct oidset_iter iter
;
1072 const struct object_id
*oid
;
1074 oidset_iter_init(&gitmodules_found
, &iter
);
1075 while ((oid
= oidset_iter_next(&iter
))) {
1077 enum object_type type
;
1081 if (oidset_contains(&gitmodules_done
, oid
))
1084 blob
= lookup_blob(oid
);
1086 struct object
*obj
= lookup_unknown_object(oid
->hash
);
1087 ret
|= report(options
, obj
,
1088 FSCK_MSG_GITMODULES_BLOB
,
1089 "non-blob found at .gitmodules");
1093 buf
= read_object_file(oid
, &type
, &size
);
1095 if (is_promisor_object(&blob
->object
.oid
))
1097 ret
|= report(options
, &blob
->object
,
1098 FSCK_MSG_GITMODULES_MISSING
,
1099 "unable to read .gitmodules blob");
1103 if (type
== OBJ_BLOB
)
1104 ret
|= fsck_blob(blob
, buf
, size
, options
);
1106 ret
|= report(options
, &blob
->object
,
1107 FSCK_MSG_GITMODULES_BLOB
,
1108 "non-blob found at .gitmodules");
1113 oidset_clear(&gitmodules_found
);
1114 oidset_clear(&gitmodules_done
);