11 #include "sha1-array.h"
15 #include "submodule-config.h"
18 static struct oidset gitmodules_found
= OIDSET_INIT
;
19 static struct oidset gitmodules_done
= OIDSET_INIT
;
24 #define FOREACH_MSG_ID(FUNC) \
26 FUNC(NUL_IN_HEADER, FATAL) \
27 FUNC(UNTERMINATED_HEADER, FATAL) \
29 FUNC(BAD_DATE, ERROR) \
30 FUNC(BAD_DATE_OVERFLOW, ERROR) \
31 FUNC(BAD_EMAIL, ERROR) \
32 FUNC(BAD_NAME, ERROR) \
33 FUNC(BAD_OBJECT_SHA1, ERROR) \
34 FUNC(BAD_PARENT_SHA1, ERROR) \
35 FUNC(BAD_TAG_OBJECT, ERROR) \
36 FUNC(BAD_TIMEZONE, ERROR) \
37 FUNC(BAD_TREE, ERROR) \
38 FUNC(BAD_TREE_SHA1, ERROR) \
39 FUNC(BAD_TYPE, ERROR) \
40 FUNC(DUPLICATE_ENTRIES, ERROR) \
41 FUNC(MISSING_AUTHOR, ERROR) \
42 FUNC(MISSING_COMMITTER, ERROR) \
43 FUNC(MISSING_EMAIL, ERROR) \
44 FUNC(MISSING_GRAFT, ERROR) \
45 FUNC(MISSING_NAME_BEFORE_EMAIL, ERROR) \
46 FUNC(MISSING_OBJECT, ERROR) \
47 FUNC(MISSING_PARENT, ERROR) \
48 FUNC(MISSING_SPACE_BEFORE_DATE, ERROR) \
49 FUNC(MISSING_SPACE_BEFORE_EMAIL, ERROR) \
50 FUNC(MISSING_TAG, ERROR) \
51 FUNC(MISSING_TAG_ENTRY, ERROR) \
52 FUNC(MISSING_TAG_OBJECT, ERROR) \
53 FUNC(MISSING_TREE, ERROR) \
54 FUNC(MISSING_TREE_OBJECT, ERROR) \
55 FUNC(MISSING_TYPE, ERROR) \
56 FUNC(MISSING_TYPE_ENTRY, ERROR) \
57 FUNC(MULTIPLE_AUTHORS, ERROR) \
58 FUNC(TAG_OBJECT_NOT_TAG, ERROR) \
59 FUNC(TREE_NOT_SORTED, ERROR) \
60 FUNC(UNKNOWN_TYPE, ERROR) \
61 FUNC(ZERO_PADDED_DATE, ERROR) \
62 FUNC(GITMODULES_MISSING, ERROR) \
63 FUNC(GITMODULES_BLOB, ERROR) \
64 FUNC(GITMODULES_PARSE, ERROR) \
65 FUNC(GITMODULES_NAME, ERROR) \
67 FUNC(BAD_FILEMODE, WARN) \
68 FUNC(EMPTY_NAME, WARN) \
69 FUNC(FULL_PATHNAME, WARN) \
71 FUNC(HAS_DOTDOT, WARN) \
72 FUNC(HAS_DOTGIT, WARN) \
73 FUNC(NULL_SHA1, WARN) \
74 FUNC(ZERO_PADDED_FILEMODE, WARN) \
75 FUNC(NUL_IN_COMMIT, WARN) \
76 /* infos (reported as warnings, but ignored by default) */ \
77 FUNC(BAD_TAG_NAME, INFO) \
78 FUNC(MISSING_TAGGER_ENTRY, INFO)
80 #define MSG_ID(id, msg_type) FSCK_MSG_##id,
82 FOREACH_MSG_ID(MSG_ID
)
88 #define MSG_ID(id, msg_type) { STR(id), NULL, FSCK_##msg_type },
90 const char *id_string
;
91 const char *downcased
;
93 } msg_id_info
[FSCK_MSG_MAX
+ 1] = {
94 FOREACH_MSG_ID(MSG_ID
)
99 static int parse_msg_id(const char *text
)
103 if (!msg_id_info
[0].downcased
) {
104 /* convert id_string to lower case, without underscores. */
105 for (i
= 0; i
< FSCK_MSG_MAX
; i
++) {
106 const char *p
= msg_id_info
[i
].id_string
;
108 char *q
= xmalloc(len
);
110 msg_id_info
[i
].downcased
= q
;
115 *(q
)++ = tolower(*(p
)++);
120 for (i
= 0; i
< FSCK_MSG_MAX
; i
++)
121 if (!strcmp(text
, msg_id_info
[i
].downcased
))
127 static int fsck_msg_type(enum fsck_msg_id msg_id
,
128 struct fsck_options
*options
)
132 assert(msg_id
>= 0 && msg_id
< FSCK_MSG_MAX
);
134 if (options
->msg_type
)
135 msg_type
= options
->msg_type
[msg_id
];
137 msg_type
= msg_id_info
[msg_id
].msg_type
;
138 if (options
->strict
&& msg_type
== FSCK_WARN
)
139 msg_type
= FSCK_ERROR
;
145 static void init_skiplist(struct fsck_options
*options
, const char *path
)
147 static struct oid_array skiplist
= OID_ARRAY_INIT
;
149 char buffer
[GIT_MAX_HEXSZ
+ 1];
150 struct object_id oid
;
152 if (options
->skiplist
)
153 sorted
= options
->skiplist
->sorted
;
156 options
->skiplist
= &skiplist
;
159 fd
= open(path
, O_RDONLY
);
161 die("Could not open skip list: %s", path
);
164 int result
= read_in_full(fd
, buffer
, sizeof(buffer
));
166 die_errno("Could not read '%s'", path
);
169 if (parse_oid_hex(buffer
, &oid
, &p
) || *p
!= '\n')
170 die("Invalid SHA-1: %s", buffer
);
171 oid_array_append(&skiplist
, &oid
);
172 if (sorted
&& skiplist
.nr
> 1 &&
173 oidcmp(&skiplist
.oid
[skiplist
.nr
- 2],
183 static int parse_msg_type(const char *str
)
185 if (!strcmp(str
, "error"))
187 else if (!strcmp(str
, "warn"))
189 else if (!strcmp(str
, "ignore"))
192 die("Unknown fsck message type: '%s'", str
);
195 int is_valid_msg_type(const char *msg_id
, const char *msg_type
)
197 if (parse_msg_id(msg_id
) < 0)
199 parse_msg_type(msg_type
);
203 void fsck_set_msg_type(struct fsck_options
*options
,
204 const char *msg_id
, const char *msg_type
)
206 int id
= parse_msg_id(msg_id
), type
;
209 die("Unhandled message id: %s", msg_id
);
210 type
= parse_msg_type(msg_type
);
212 if (type
!= FSCK_ERROR
&& msg_id_info
[id
].msg_type
== FSCK_FATAL
)
213 die("Cannot demote %s to %s", msg_id
, msg_type
);
215 if (!options
->msg_type
) {
218 ALLOC_ARRAY(msg_type
, FSCK_MSG_MAX
);
219 for (i
= 0; i
< FSCK_MSG_MAX
; i
++)
220 msg_type
[i
] = fsck_msg_type(i
, options
);
221 options
->msg_type
= msg_type
;
224 options
->msg_type
[id
] = type
;
227 void fsck_set_msg_types(struct fsck_options
*options
, const char *values
)
229 char *buf
= xstrdup(values
), *to_free
= buf
;
233 int len
= strcspn(buf
, " ,|"), equal
;
243 equal
< len
&& buf
[equal
] != '=' && buf
[equal
] != ':';
245 buf
[equal
] = tolower(buf
[equal
]);
248 if (!strcmp(buf
, "skiplist")) {
250 die("skiplist requires a path");
251 init_skiplist(options
, buf
+ equal
+ 1);
257 die("Missing '=': '%s'", buf
);
259 fsck_set_msg_type(options
, buf
, buf
+ equal
+ 1);
265 static void append_msg_id(struct strbuf
*sb
, const char *msg_id
)
268 char c
= *(msg_id
)++;
273 strbuf_addch(sb
, tolower(c
));
276 strbuf_addch(sb
, *(msg_id
)++);
280 strbuf_addstr(sb
, ": ");
283 __attribute__((format (printf
, 4, 5)))
284 static int report(struct fsck_options
*options
, struct object
*object
,
285 enum fsck_msg_id id
, const char *fmt
, ...)
288 struct strbuf sb
= STRBUF_INIT
;
289 int msg_type
= fsck_msg_type(id
, options
), result
;
291 if (msg_type
== FSCK_IGNORE
)
294 if (options
->skiplist
&& object
&&
295 oid_array_lookup(options
->skiplist
, &object
->oid
) >= 0)
298 if (msg_type
== FSCK_FATAL
)
299 msg_type
= FSCK_ERROR
;
300 else if (msg_type
== FSCK_INFO
)
301 msg_type
= FSCK_WARN
;
303 append_msg_id(&sb
, msg_id_info
[id
].id_string
);
306 strbuf_vaddf(&sb
, fmt
, ap
);
307 result
= options
->error_func(options
, object
, msg_type
, sb
.buf
);
314 static char *get_object_name(struct fsck_options
*options
, struct object
*obj
)
316 if (!options
->object_names
)
318 return lookup_decoration(options
->object_names
, obj
);
321 static void put_object_name(struct fsck_options
*options
, struct object
*obj
,
322 const char *fmt
, ...)
325 struct strbuf buf
= STRBUF_INIT
;
328 if (!options
->object_names
)
330 existing
= lookup_decoration(options
->object_names
, obj
);
334 strbuf_vaddf(&buf
, fmt
, ap
);
335 add_decoration(options
->object_names
, obj
, strbuf_detach(&buf
, NULL
));
339 static const char *describe_object(struct fsck_options
*o
, struct object
*obj
)
341 static struct strbuf buf
= STRBUF_INIT
;
345 strbuf_addstr(&buf
, oid_to_hex(&obj
->oid
));
346 if (o
->object_names
&& (name
= lookup_decoration(o
->object_names
, obj
)))
347 strbuf_addf(&buf
, " (%s)", name
);
352 static int fsck_walk_tree(struct tree
*tree
, void *data
, struct fsck_options
*options
)
354 struct tree_desc desc
;
355 struct name_entry entry
;
359 if (parse_tree(tree
))
362 name
= get_object_name(options
, &tree
->object
);
363 if (init_tree_desc_gently(&desc
, tree
->buffer
, tree
->size
))
365 while (tree_entry_gently(&desc
, &entry
)) {
369 if (S_ISGITLINK(entry
.mode
))
372 if (S_ISDIR(entry
.mode
)) {
373 obj
= (struct object
*)lookup_tree(entry
.oid
);
375 put_object_name(options
, obj
, "%s%s/", name
,
377 result
= options
->walk(obj
, OBJ_TREE
, data
, options
);
379 else if (S_ISREG(entry
.mode
) || S_ISLNK(entry
.mode
)) {
380 obj
= (struct object
*)lookup_blob(entry
.oid
);
382 put_object_name(options
, obj
, "%s%s", name
,
384 result
= options
->walk(obj
, OBJ_BLOB
, data
, options
);
387 result
= error("in tree %s: entry %s has bad mode %.6o",
388 describe_object(options
, &tree
->object
), entry
.path
, entry
.mode
);
398 static int fsck_walk_commit(struct commit
*commit
, void *data
, struct fsck_options
*options
)
400 int counter
= 0, generation
= 0, name_prefix_len
= 0;
401 struct commit_list
*parents
;
406 if (parse_commit(commit
))
409 name
= get_object_name(options
, &commit
->object
);
411 put_object_name(options
, &commit
->tree
->object
, "%s:", name
);
413 result
= options
->walk((struct object
*)commit
->tree
, OBJ_TREE
, data
, options
);
418 parents
= commit
->parents
;
419 if (name
&& parents
) {
420 int len
= strlen(name
), power
;
422 if (len
&& name
[len
- 1] == '^') {
424 name_prefix_len
= len
- 1;
426 else { /* parse ~<generation> suffix */
427 for (generation
= 0, power
= 1;
428 len
&& isdigit(name
[len
- 1]);
430 generation
+= power
* (name
[--len
] - '0');
431 if (power
> 1 && len
&& name
[len
- 1] == '~')
432 name_prefix_len
= len
- 1;
438 struct object
*obj
= &parents
->item
->object
;
441 put_object_name(options
, obj
, "%s^%d",
443 else if (generation
> 0)
444 put_object_name(options
, obj
, "%.*s~%d",
445 name_prefix_len
, name
, generation
+ 1);
447 put_object_name(options
, obj
, "%s^", name
);
449 result
= options
->walk((struct object
*)parents
->item
, OBJ_COMMIT
, data
, options
);
454 parents
= parents
->next
;
459 static int fsck_walk_tag(struct tag
*tag
, void *data
, struct fsck_options
*options
)
461 char *name
= get_object_name(options
, &tag
->object
);
466 put_object_name(options
, tag
->tagged
, "%s", name
);
467 return options
->walk(tag
->tagged
, OBJ_ANY
, data
, options
);
470 int fsck_walk(struct object
*obj
, void *data
, struct fsck_options
*options
)
475 if (obj
->type
== OBJ_NONE
)
476 parse_object(&obj
->oid
);
482 return fsck_walk_tree((struct tree
*)obj
, data
, options
);
484 return fsck_walk_commit((struct commit
*)obj
, data
, options
);
486 return fsck_walk_tag((struct tag
*)obj
, data
, options
);
488 error("Unknown object type for %s", describe_object(options
, obj
));
494 * The entries in a tree are ordered in the _path_ order,
495 * which means that a directory entry is ordered by adding
496 * a slash to the end of it.
498 * So a directory called "a" is ordered _after_ a file
499 * called "a.c", because "a/" sorts after "a.c".
501 #define TREE_UNORDERED (-1)
502 #define TREE_HAS_DUPS (-2)
504 static int verify_ordered(unsigned mode1
, const char *name1
, unsigned mode2
, const char *name2
)
506 int len1
= strlen(name1
);
507 int len2
= strlen(name2
);
508 int len
= len1
< len2
? len1
: len2
;
509 unsigned char c1
, c2
;
512 cmp
= memcmp(name1
, name2
, len
);
516 return TREE_UNORDERED
;
519 * Ok, the first <len> characters are the same.
520 * Now we need to order the next one, but turn
521 * a '\0' into a '/' for a directory entry.
527 * git-write-tree used to write out a nonsense tree that has
528 * entries with the same name, one blob and one tree. Make
529 * sure we do not have duplicate entries.
531 return TREE_HAS_DUPS
;
532 if (!c1
&& S_ISDIR(mode1
))
534 if (!c2
&& S_ISDIR(mode2
))
536 return c1
< c2
? 0 : TREE_UNORDERED
;
539 static int fsck_tree(struct tree
*item
, struct fsck_options
*options
)
542 int has_null_sha1
= 0;
543 int has_full_path
= 0;
544 int has_empty_name
= 0;
548 int has_zero_pad
= 0;
549 int has_bad_modes
= 0;
550 int has_dup_entries
= 0;
551 int not_properly_sorted
= 0;
552 struct tree_desc desc
;
556 if (init_tree_desc_gently(&desc
, item
->buffer
, item
->size
)) {
557 retval
+= report(options
, &item
->object
, FSCK_MSG_BAD_TREE
, "cannot be parsed as a tree");
567 const struct object_id
*oid
;
569 oid
= tree_entry_extract(&desc
, &name
, &mode
);
571 has_null_sha1
|= is_null_oid(oid
);
572 has_full_path
|= !!strchr(name
, '/');
573 has_empty_name
|= !*name
;
574 has_dot
|= !strcmp(name
, ".");
575 has_dotdot
|= !strcmp(name
, "..");
576 has_dotgit
|= is_hfs_dotgit(name
) || is_ntfs_dotgit(name
);
577 has_zero_pad
|= *(char *)desc
.buffer
== '0';
579 if (is_hfs_dotgitmodules(name
) || is_ntfs_dotgitmodules(name
))
580 oidset_insert(&gitmodules_found
, oid
);
582 if (update_tree_entry_gently(&desc
)) {
583 retval
+= report(options
, &item
->object
, FSCK_MSG_BAD_TREE
, "cannot be parsed as a tree");
598 * This is nonstandard, but we had a few of these
599 * early on when we honored the full set of mode
603 if (!options
->strict
)
611 switch (verify_ordered(o_mode
, o_name
, mode
, name
)) {
613 not_properly_sorted
= 1;
628 retval
+= report(options
, &item
->object
, FSCK_MSG_NULL_SHA1
, "contains entries pointing to null sha1");
630 retval
+= report(options
, &item
->object
, FSCK_MSG_FULL_PATHNAME
, "contains full pathnames");
632 retval
+= report(options
, &item
->object
, FSCK_MSG_EMPTY_NAME
, "contains empty pathname");
634 retval
+= report(options
, &item
->object
, FSCK_MSG_HAS_DOT
, "contains '.'");
636 retval
+= report(options
, &item
->object
, FSCK_MSG_HAS_DOTDOT
, "contains '..'");
638 retval
+= report(options
, &item
->object
, FSCK_MSG_HAS_DOTGIT
, "contains '.git'");
640 retval
+= report(options
, &item
->object
, FSCK_MSG_ZERO_PADDED_FILEMODE
, "contains zero-padded file modes");
642 retval
+= report(options
, &item
->object
, FSCK_MSG_BAD_FILEMODE
, "contains bad file modes");
644 retval
+= report(options
, &item
->object
, FSCK_MSG_DUPLICATE_ENTRIES
, "contains duplicate file entries");
645 if (not_properly_sorted
)
646 retval
+= report(options
, &item
->object
, FSCK_MSG_TREE_NOT_SORTED
, "not properly sorted");
650 static int verify_headers(const void *data
, unsigned long size
,
651 struct object
*obj
, struct fsck_options
*options
)
653 const char *buffer
= (const char *)data
;
656 for (i
= 0; i
< size
; i
++) {
659 return report(options
, obj
,
660 FSCK_MSG_NUL_IN_HEADER
,
661 "unterminated header: NUL at offset %ld", i
);
663 if (i
+ 1 < size
&& buffer
[i
+ 1] == '\n')
669 * We did not find double-LF that separates the header
670 * and the body. Not having a body is not a crime but
671 * we do want to see the terminating LF for the last header
674 if (size
&& buffer
[size
- 1] == '\n')
677 return report(options
, obj
,
678 FSCK_MSG_UNTERMINATED_HEADER
, "unterminated header");
681 static int fsck_ident(const char **ident
, struct object
*obj
, struct fsck_options
*options
)
683 const char *p
= *ident
;
686 *ident
= strchrnul(*ident
, '\n');
691 return report(options
, obj
, FSCK_MSG_MISSING_NAME_BEFORE_EMAIL
, "invalid author/committer line - missing space before email");
692 p
+= strcspn(p
, "<>\n");
694 return report(options
, obj
, FSCK_MSG_BAD_NAME
, "invalid author/committer line - bad name");
696 return report(options
, obj
, FSCK_MSG_MISSING_EMAIL
, "invalid author/committer line - missing email");
698 return report(options
, obj
, FSCK_MSG_MISSING_SPACE_BEFORE_EMAIL
, "invalid author/committer line - missing space before email");
700 p
+= strcspn(p
, "<>\n");
702 return report(options
, obj
, FSCK_MSG_BAD_EMAIL
, "invalid author/committer line - bad email");
705 return report(options
, obj
, FSCK_MSG_MISSING_SPACE_BEFORE_DATE
, "invalid author/committer line - missing space before date");
707 if (*p
== '0' && p
[1] != ' ')
708 return report(options
, obj
, FSCK_MSG_ZERO_PADDED_DATE
, "invalid author/committer line - zero-padded date");
709 if (date_overflows(parse_timestamp(p
, &end
, 10)))
710 return report(options
, obj
, FSCK_MSG_BAD_DATE_OVERFLOW
, "invalid author/committer line - date causes integer overflow");
711 if ((end
== p
|| *end
!= ' '))
712 return report(options
, obj
, FSCK_MSG_BAD_DATE
, "invalid author/committer line - bad date");
714 if ((*p
!= '+' && *p
!= '-') ||
720 return report(options
, obj
, FSCK_MSG_BAD_TIMEZONE
, "invalid author/committer line - bad time zone");
725 static int fsck_commit_buffer(struct commit
*commit
, const char *buffer
,
726 unsigned long size
, struct fsck_options
*options
)
728 unsigned char tree_sha1
[20], sha1
[20];
729 struct commit_graft
*graft
;
730 unsigned parent_count
, parent_line_count
= 0, author_count
;
732 const char *buffer_begin
= buffer
;
734 if (verify_headers(buffer
, size
, &commit
->object
, options
))
737 if (!skip_prefix(buffer
, "tree ", &buffer
))
738 return report(options
, &commit
->object
, FSCK_MSG_MISSING_TREE
, "invalid format - expected 'tree' line");
739 if (get_sha1_hex(buffer
, tree_sha1
) || buffer
[40] != '\n') {
740 err
= report(options
, &commit
->object
, FSCK_MSG_BAD_TREE_SHA1
, "invalid 'tree' line format - bad sha1");
745 while (skip_prefix(buffer
, "parent ", &buffer
)) {
746 if (get_sha1_hex(buffer
, sha1
) || buffer
[40] != '\n') {
747 err
= report(options
, &commit
->object
, FSCK_MSG_BAD_PARENT_SHA1
, "invalid 'parent' line format - bad sha1");
754 graft
= lookup_commit_graft(&commit
->object
.oid
);
755 parent_count
= commit_list_count(commit
->parents
);
757 if (graft
->nr_parent
== -1 && !parent_count
)
758 ; /* shallow commit */
759 else if (graft
->nr_parent
!= parent_count
) {
760 err
= report(options
, &commit
->object
, FSCK_MSG_MISSING_GRAFT
, "graft objects missing");
765 if (parent_count
!= parent_line_count
) {
766 err
= report(options
, &commit
->object
, FSCK_MSG_MISSING_PARENT
, "parent objects missing");
772 while (skip_prefix(buffer
, "author ", &buffer
)) {
774 err
= fsck_ident(&buffer
, &commit
->object
, options
);
778 if (author_count
< 1)
779 err
= report(options
, &commit
->object
, FSCK_MSG_MISSING_AUTHOR
, "invalid format - expected 'author' line");
780 else if (author_count
> 1)
781 err
= report(options
, &commit
->object
, FSCK_MSG_MULTIPLE_AUTHORS
, "invalid format - multiple 'author' lines");
784 if (!skip_prefix(buffer
, "committer ", &buffer
))
785 return report(options
, &commit
->object
, FSCK_MSG_MISSING_COMMITTER
, "invalid format - expected 'committer' line");
786 err
= fsck_ident(&buffer
, &commit
->object
, options
);
790 err
= report(options
, &commit
->object
, FSCK_MSG_BAD_TREE
, "could not load commit's tree %s", sha1_to_hex(tree_sha1
));
794 if (memchr(buffer_begin
, '\0', size
)) {
795 err
= report(options
, &commit
->object
, FSCK_MSG_NUL_IN_COMMIT
,
796 "NUL byte in the commit object body");
803 static int fsck_commit(struct commit
*commit
, const char *data
,
804 unsigned long size
, struct fsck_options
*options
)
806 const char *buffer
= data
? data
: get_commit_buffer(commit
, &size
);
807 int ret
= fsck_commit_buffer(commit
, buffer
, size
, options
);
809 unuse_commit_buffer(commit
, buffer
);
813 static int fsck_tag_buffer(struct tag
*tag
, const char *data
,
814 unsigned long size
, struct fsck_options
*options
)
816 unsigned char sha1
[20];
819 char *to_free
= NULL
, *eol
;
820 struct strbuf sb
= STRBUF_INIT
;
825 enum object_type type
;
828 read_sha1_file(tag
->object
.oid
.hash
, &type
, &size
);
830 return report(options
, &tag
->object
,
831 FSCK_MSG_MISSING_TAG_OBJECT
,
832 "cannot read tag object");
834 if (type
!= OBJ_TAG
) {
835 ret
= report(options
, &tag
->object
,
836 FSCK_MSG_TAG_OBJECT_NOT_TAG
,
837 "expected tag got %s",
843 ret
= verify_headers(buffer
, size
, &tag
->object
, options
);
847 if (!skip_prefix(buffer
, "object ", &buffer
)) {
848 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_OBJECT
, "invalid format - expected 'object' line");
851 if (get_sha1_hex(buffer
, sha1
) || buffer
[40] != '\n') {
852 ret
= report(options
, &tag
->object
, FSCK_MSG_BAD_OBJECT_SHA1
, "invalid 'object' line format - bad sha1");
858 if (!skip_prefix(buffer
, "type ", &buffer
)) {
859 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TYPE_ENTRY
, "invalid format - expected 'type' line");
862 eol
= strchr(buffer
, '\n');
864 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TYPE
, "invalid format - unexpected end after 'type' line");
867 if (type_from_string_gently(buffer
, eol
- buffer
, 1) < 0)
868 ret
= report(options
, &tag
->object
, FSCK_MSG_BAD_TYPE
, "invalid 'type' value");
873 if (!skip_prefix(buffer
, "tag ", &buffer
)) {
874 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TAG_ENTRY
, "invalid format - expected 'tag' line");
877 eol
= strchr(buffer
, '\n');
879 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TAG
, "invalid format - unexpected end after 'type' line");
882 strbuf_addf(&sb
, "refs/tags/%.*s", (int)(eol
- buffer
), buffer
);
883 if (check_refname_format(sb
.buf
, 0)) {
884 ret
= report(options
, &tag
->object
, FSCK_MSG_BAD_TAG_NAME
,
885 "invalid 'tag' name: %.*s",
886 (int)(eol
- buffer
), buffer
);
892 if (!skip_prefix(buffer
, "tagger ", &buffer
)) {
893 /* early tags do not contain 'tagger' lines; warn only */
894 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TAGGER_ENTRY
, "invalid format - expected 'tagger' line");
899 ret
= fsck_ident(&buffer
, &tag
->object
, options
);
907 static int fsck_tag(struct tag
*tag
, const char *data
,
908 unsigned long size
, struct fsck_options
*options
)
910 struct object
*tagged
= tag
->tagged
;
913 return report(options
, &tag
->object
, FSCK_MSG_BAD_TAG_OBJECT
, "could not load tagged object");
915 return fsck_tag_buffer(tag
, data
, size
, options
);
918 struct fsck_gitmodules_data
{
920 struct fsck_options
*options
;
924 static int fsck_gitmodules_fn(const char *var
, const char *value
, void *vdata
)
926 struct fsck_gitmodules_data
*data
= vdata
;
927 const char *subsection
, *key
;
931 if (parse_config_key(var
, "submodule", &subsection
, &subsection_len
, &key
) < 0 ||
935 name
= xmemdupz(subsection
, subsection_len
);
936 if (check_submodule_name(name
) < 0)
937 data
->ret
|= report(data
->options
, data
->obj
,
938 FSCK_MSG_GITMODULES_NAME
,
939 "disallowed submodule name: %s",
946 static int fsck_blob(struct blob
*blob
, const char *buf
,
947 unsigned long size
, struct fsck_options
*options
)
949 struct fsck_gitmodules_data data
;
951 if (!oidset_contains(&gitmodules_found
, &blob
->object
.oid
))
953 oidset_insert(&gitmodules_done
, &blob
->object
.oid
);
957 * A missing buffer here is a sign that the caller found the
958 * blob too gigantic to load into memory. Let's just consider
961 return report(options
, &blob
->object
,
962 FSCK_MSG_GITMODULES_PARSE
,
963 ".gitmodules too large to parse");
966 data
.obj
= &blob
->object
;
967 data
.options
= options
;
969 if (git_config_from_mem(fsck_gitmodules_fn
, CONFIG_ORIGIN_BLOB
,
970 ".gitmodules", buf
, size
, &data
))
971 data
.ret
|= report(options
, &blob
->object
,
972 FSCK_MSG_GITMODULES_PARSE
,
973 "could not parse gitmodules blob");
978 int fsck_object(struct object
*obj
, void *data
, unsigned long size
,
979 struct fsck_options
*options
)
982 return report(options
, obj
, FSCK_MSG_BAD_OBJECT_SHA1
, "no valid object to fsck");
984 if (obj
->type
== OBJ_BLOB
)
985 return fsck_blob((struct blob
*)obj
, data
, size
, options
);
986 if (obj
->type
== OBJ_TREE
)
987 return fsck_tree((struct tree
*) obj
, options
);
988 if (obj
->type
== OBJ_COMMIT
)
989 return fsck_commit((struct commit
*) obj
, (const char *) data
,
991 if (obj
->type
== OBJ_TAG
)
992 return fsck_tag((struct tag
*) obj
, (const char *) data
,
995 return report(options
, obj
, FSCK_MSG_UNKNOWN_TYPE
, "unknown type '%d' (internal fsck error)",
999 int fsck_error_function(struct fsck_options
*o
,
1000 struct object
*obj
, int msg_type
, const char *message
)
1002 if (msg_type
== FSCK_WARN
) {
1003 warning("object %s: %s", describe_object(o
, obj
), message
);
1006 error("object %s: %s", describe_object(o
, obj
), message
);
1010 int fsck_finish(struct fsck_options
*options
)
1013 struct oidset_iter iter
;
1014 const struct object_id
*oid
;
1016 oidset_iter_init(&gitmodules_found
, &iter
);
1017 while ((oid
= oidset_iter_next(&iter
))) {
1019 enum object_type type
;
1023 if (oidset_contains(&gitmodules_done
, oid
))
1026 blob
= lookup_blob(oid
);
1028 ret
|= report(options
, &blob
->object
,
1029 FSCK_MSG_GITMODULES_BLOB
,
1030 "non-blob found at .gitmodules");
1034 buf
= read_sha1_file(oid
->hash
, &type
, &size
);
1036 if (is_promisor_object(&blob
->object
.oid
))
1038 ret
|= report(options
, &blob
->object
,
1039 FSCK_MSG_GITMODULES_MISSING
,
1040 "unable to read .gitmodules blob");
1044 if (type
== OBJ_BLOB
)
1045 ret
|= fsck_blob(blob
, buf
, size
, options
);
1047 ret
|= report(options
, &blob
->object
,
1048 FSCK_MSG_GITMODULES_BLOB
,
1049 "non-blob found at .gitmodules");
1054 oidset_clear(&gitmodules_found
);
1055 oidset_clear(&gitmodules_done
);