11 #include "sha1-array.h"
15 #include "submodule-config.h"
17 #include "credential.h"
19 static struct oidset gitmodules_found
= OIDSET_INIT
;
20 static struct oidset gitmodules_done
= OIDSET_INIT
;
25 #define FOREACH_MSG_ID(FUNC) \
27 FUNC(NUL_IN_HEADER, FATAL) \
28 FUNC(UNTERMINATED_HEADER, FATAL) \
30 FUNC(BAD_DATE, ERROR) \
31 FUNC(BAD_DATE_OVERFLOW, ERROR) \
32 FUNC(BAD_EMAIL, ERROR) \
33 FUNC(BAD_NAME, ERROR) \
34 FUNC(BAD_OBJECT_SHA1, ERROR) \
35 FUNC(BAD_PARENT_SHA1, ERROR) \
36 FUNC(BAD_TAG_OBJECT, ERROR) \
37 FUNC(BAD_TIMEZONE, ERROR) \
38 FUNC(BAD_TREE, ERROR) \
39 FUNC(BAD_TREE_SHA1, ERROR) \
40 FUNC(BAD_TYPE, ERROR) \
41 FUNC(DUPLICATE_ENTRIES, ERROR) \
42 FUNC(MISSING_AUTHOR, ERROR) \
43 FUNC(MISSING_COMMITTER, ERROR) \
44 FUNC(MISSING_EMAIL, ERROR) \
45 FUNC(MISSING_GRAFT, ERROR) \
46 FUNC(MISSING_NAME_BEFORE_EMAIL, ERROR) \
47 FUNC(MISSING_OBJECT, ERROR) \
48 FUNC(MISSING_PARENT, ERROR) \
49 FUNC(MISSING_SPACE_BEFORE_DATE, ERROR) \
50 FUNC(MISSING_SPACE_BEFORE_EMAIL, ERROR) \
51 FUNC(MISSING_TAG, ERROR) \
52 FUNC(MISSING_TAG_ENTRY, ERROR) \
53 FUNC(MISSING_TAG_OBJECT, ERROR) \
54 FUNC(MISSING_TREE, ERROR) \
55 FUNC(MISSING_TREE_OBJECT, ERROR) \
56 FUNC(MISSING_TYPE, ERROR) \
57 FUNC(MISSING_TYPE_ENTRY, ERROR) \
58 FUNC(MULTIPLE_AUTHORS, ERROR) \
59 FUNC(TAG_OBJECT_NOT_TAG, ERROR) \
60 FUNC(TREE_NOT_SORTED, ERROR) \
61 FUNC(UNKNOWN_TYPE, ERROR) \
62 FUNC(ZERO_PADDED_DATE, ERROR) \
63 FUNC(GITMODULES_MISSING, ERROR) \
64 FUNC(GITMODULES_BLOB, ERROR) \
65 FUNC(GITMODULES_PARSE, ERROR) \
66 FUNC(GITMODULES_NAME, ERROR) \
67 FUNC(GITMODULES_SYMLINK, ERROR) \
68 FUNC(GITMODULES_URL, ERROR) \
69 FUNC(GITMODULES_PATH, ERROR) \
70 FUNC(GITMODULES_UPDATE, ERROR) \
72 FUNC(BAD_FILEMODE, WARN) \
73 FUNC(EMPTY_NAME, WARN) \
74 FUNC(FULL_PATHNAME, WARN) \
76 FUNC(HAS_DOTDOT, WARN) \
77 FUNC(HAS_DOTGIT, WARN) \
78 FUNC(NULL_SHA1, WARN) \
79 FUNC(ZERO_PADDED_FILEMODE, WARN) \
80 FUNC(NUL_IN_COMMIT, WARN) \
81 /* infos (reported as warnings, but ignored by default) */ \
82 FUNC(BAD_TAG_NAME, INFO) \
83 FUNC(MISSING_TAGGER_ENTRY, INFO)
85 #define MSG_ID(id, msg_type) FSCK_MSG_##id,
87 FOREACH_MSG_ID(MSG_ID
)
93 #define MSG_ID(id, msg_type) { STR(id), NULL, FSCK_##msg_type },
95 const char *id_string
;
96 const char *downcased
;
98 } msg_id_info
[FSCK_MSG_MAX
+ 1] = {
99 FOREACH_MSG_ID(MSG_ID
)
104 static int parse_msg_id(const char *text
)
108 if (!msg_id_info
[0].downcased
) {
109 /* convert id_string to lower case, without underscores. */
110 for (i
= 0; i
< FSCK_MSG_MAX
; i
++) {
111 const char *p
= msg_id_info
[i
].id_string
;
113 char *q
= xmalloc(len
);
115 msg_id_info
[i
].downcased
= q
;
120 *(q
)++ = tolower(*(p
)++);
125 for (i
= 0; i
< FSCK_MSG_MAX
; i
++)
126 if (!strcmp(text
, msg_id_info
[i
].downcased
))
132 static int fsck_msg_type(enum fsck_msg_id msg_id
,
133 struct fsck_options
*options
)
137 assert(msg_id
>= 0 && msg_id
< FSCK_MSG_MAX
);
139 if (options
->msg_type
)
140 msg_type
= options
->msg_type
[msg_id
];
142 msg_type
= msg_id_info
[msg_id
].msg_type
;
143 if (options
->strict
&& msg_type
== FSCK_WARN
)
144 msg_type
= FSCK_ERROR
;
150 static void init_skiplist(struct fsck_options
*options
, const char *path
)
152 static struct oid_array skiplist
= OID_ARRAY_INIT
;
154 char buffer
[GIT_MAX_HEXSZ
+ 1];
155 struct object_id oid
;
157 if (options
->skiplist
)
158 sorted
= options
->skiplist
->sorted
;
161 options
->skiplist
= &skiplist
;
164 fd
= open(path
, O_RDONLY
);
166 die("Could not open skip list: %s", path
);
169 int result
= read_in_full(fd
, buffer
, sizeof(buffer
));
171 die_errno("Could not read '%s'", path
);
174 if (parse_oid_hex(buffer
, &oid
, &p
) || *p
!= '\n')
175 die("Invalid SHA-1: %s", buffer
);
176 oid_array_append(&skiplist
, &oid
);
177 if (sorted
&& skiplist
.nr
> 1 &&
178 oidcmp(&skiplist
.oid
[skiplist
.nr
- 2],
188 static int parse_msg_type(const char *str
)
190 if (!strcmp(str
, "error"))
192 else if (!strcmp(str
, "warn"))
194 else if (!strcmp(str
, "ignore"))
197 die("Unknown fsck message type: '%s'", str
);
200 int is_valid_msg_type(const char *msg_id
, const char *msg_type
)
202 if (parse_msg_id(msg_id
) < 0)
204 parse_msg_type(msg_type
);
208 void fsck_set_msg_type(struct fsck_options
*options
,
209 const char *msg_id
, const char *msg_type
)
211 int id
= parse_msg_id(msg_id
), type
;
214 die("Unhandled message id: %s", msg_id
);
215 type
= parse_msg_type(msg_type
);
217 if (type
!= FSCK_ERROR
&& msg_id_info
[id
].msg_type
== FSCK_FATAL
)
218 die("Cannot demote %s to %s", msg_id
, msg_type
);
220 if (!options
->msg_type
) {
223 ALLOC_ARRAY(msg_type
, FSCK_MSG_MAX
);
224 for (i
= 0; i
< FSCK_MSG_MAX
; i
++)
225 msg_type
[i
] = fsck_msg_type(i
, options
);
226 options
->msg_type
= msg_type
;
229 options
->msg_type
[id
] = type
;
232 void fsck_set_msg_types(struct fsck_options
*options
, const char *values
)
234 char *buf
= xstrdup(values
), *to_free
= buf
;
238 int len
= strcspn(buf
, " ,|"), equal
;
248 equal
< len
&& buf
[equal
] != '=' && buf
[equal
] != ':';
250 buf
[equal
] = tolower(buf
[equal
]);
253 if (!strcmp(buf
, "skiplist")) {
255 die("skiplist requires a path");
256 init_skiplist(options
, buf
+ equal
+ 1);
262 die("Missing '=': '%s'", buf
);
264 fsck_set_msg_type(options
, buf
, buf
+ equal
+ 1);
270 static void append_msg_id(struct strbuf
*sb
, const char *msg_id
)
273 char c
= *(msg_id
)++;
278 strbuf_addch(sb
, tolower(c
));
281 strbuf_addch(sb
, *(msg_id
)++);
285 strbuf_addstr(sb
, ": ");
288 __attribute__((format (printf
, 4, 5)))
289 static int report(struct fsck_options
*options
, struct object
*object
,
290 enum fsck_msg_id id
, const char *fmt
, ...)
293 struct strbuf sb
= STRBUF_INIT
;
294 int msg_type
= fsck_msg_type(id
, options
), result
;
296 if (msg_type
== FSCK_IGNORE
)
299 if (options
->skiplist
&& object
&&
300 oid_array_lookup(options
->skiplist
, &object
->oid
) >= 0)
303 if (msg_type
== FSCK_FATAL
)
304 msg_type
= FSCK_ERROR
;
305 else if (msg_type
== FSCK_INFO
)
306 msg_type
= FSCK_WARN
;
308 append_msg_id(&sb
, msg_id_info
[id
].id_string
);
311 strbuf_vaddf(&sb
, fmt
, ap
);
312 result
= options
->error_func(options
, object
, msg_type
, sb
.buf
);
319 static char *get_object_name(struct fsck_options
*options
, struct object
*obj
)
321 if (!options
->object_names
)
323 return lookup_decoration(options
->object_names
, obj
);
326 static void put_object_name(struct fsck_options
*options
, struct object
*obj
,
327 const char *fmt
, ...)
330 struct strbuf buf
= STRBUF_INIT
;
333 if (!options
->object_names
)
335 existing
= lookup_decoration(options
->object_names
, obj
);
339 strbuf_vaddf(&buf
, fmt
, ap
);
340 add_decoration(options
->object_names
, obj
, strbuf_detach(&buf
, NULL
));
344 static const char *describe_object(struct fsck_options
*o
, struct object
*obj
)
346 static struct strbuf buf
= STRBUF_INIT
;
350 strbuf_addstr(&buf
, oid_to_hex(&obj
->oid
));
351 if (o
->object_names
&& (name
= lookup_decoration(o
->object_names
, obj
)))
352 strbuf_addf(&buf
, " (%s)", name
);
357 static int fsck_walk_tree(struct tree
*tree
, void *data
, struct fsck_options
*options
)
359 struct tree_desc desc
;
360 struct name_entry entry
;
364 if (parse_tree(tree
))
367 name
= get_object_name(options
, &tree
->object
);
368 if (init_tree_desc_gently(&desc
, tree
->buffer
, tree
->size
))
370 while (tree_entry_gently(&desc
, &entry
)) {
374 if (S_ISGITLINK(entry
.mode
))
377 if (S_ISDIR(entry
.mode
)) {
378 obj
= (struct object
*)lookup_tree(entry
.oid
);
380 put_object_name(options
, obj
, "%s%s/", name
,
382 result
= options
->walk(obj
, OBJ_TREE
, data
, options
);
384 else if (S_ISREG(entry
.mode
) || S_ISLNK(entry
.mode
)) {
385 obj
= (struct object
*)lookup_blob(entry
.oid
);
387 put_object_name(options
, obj
, "%s%s", name
,
389 result
= options
->walk(obj
, OBJ_BLOB
, data
, options
);
392 result
= error("in tree %s: entry %s has bad mode %.6o",
393 describe_object(options
, &tree
->object
), entry
.path
, entry
.mode
);
403 static int fsck_walk_commit(struct commit
*commit
, void *data
, struct fsck_options
*options
)
405 int counter
= 0, generation
= 0, name_prefix_len
= 0;
406 struct commit_list
*parents
;
411 if (parse_commit(commit
))
414 name
= get_object_name(options
, &commit
->object
);
416 put_object_name(options
, &commit
->tree
->object
, "%s:", name
);
418 result
= options
->walk((struct object
*)commit
->tree
, OBJ_TREE
, data
, options
);
423 parents
= commit
->parents
;
424 if (name
&& parents
) {
425 int len
= strlen(name
), power
;
427 if (len
&& name
[len
- 1] == '^') {
429 name_prefix_len
= len
- 1;
431 else { /* parse ~<generation> suffix */
432 for (generation
= 0, power
= 1;
433 len
&& isdigit(name
[len
- 1]);
435 generation
+= power
* (name
[--len
] - '0');
436 if (power
> 1 && len
&& name
[len
- 1] == '~')
437 name_prefix_len
= len
- 1;
443 struct object
*obj
= &parents
->item
->object
;
446 put_object_name(options
, obj
, "%s^%d",
448 else if (generation
> 0)
449 put_object_name(options
, obj
, "%.*s~%d",
450 name_prefix_len
, name
, generation
+ 1);
452 put_object_name(options
, obj
, "%s^", name
);
454 result
= options
->walk((struct object
*)parents
->item
, OBJ_COMMIT
, data
, options
);
459 parents
= parents
->next
;
464 static int fsck_walk_tag(struct tag
*tag
, void *data
, struct fsck_options
*options
)
466 char *name
= get_object_name(options
, &tag
->object
);
471 put_object_name(options
, tag
->tagged
, "%s", name
);
472 return options
->walk(tag
->tagged
, OBJ_ANY
, data
, options
);
475 int fsck_walk(struct object
*obj
, void *data
, struct fsck_options
*options
)
480 if (obj
->type
== OBJ_NONE
)
481 parse_object(&obj
->oid
);
487 return fsck_walk_tree((struct tree
*)obj
, data
, options
);
489 return fsck_walk_commit((struct commit
*)obj
, data
, options
);
491 return fsck_walk_tag((struct tag
*)obj
, data
, options
);
493 error("Unknown object type for %s", describe_object(options
, obj
));
499 * The entries in a tree are ordered in the _path_ order,
500 * which means that a directory entry is ordered by adding
501 * a slash to the end of it.
503 * So a directory called "a" is ordered _after_ a file
504 * called "a.c", because "a/" sorts after "a.c".
506 #define TREE_UNORDERED (-1)
507 #define TREE_HAS_DUPS (-2)
509 static int verify_ordered(unsigned mode1
, const char *name1
, unsigned mode2
, const char *name2
)
511 int len1
= strlen(name1
);
512 int len2
= strlen(name2
);
513 int len
= len1
< len2
? len1
: len2
;
514 unsigned char c1
, c2
;
517 cmp
= memcmp(name1
, name2
, len
);
521 return TREE_UNORDERED
;
524 * Ok, the first <len> characters are the same.
525 * Now we need to order the next one, but turn
526 * a '\0' into a '/' for a directory entry.
532 * git-write-tree used to write out a nonsense tree that has
533 * entries with the same name, one blob and one tree. Make
534 * sure we do not have duplicate entries.
536 return TREE_HAS_DUPS
;
537 if (!c1
&& S_ISDIR(mode1
))
539 if (!c2
&& S_ISDIR(mode2
))
541 return c1
< c2
? 0 : TREE_UNORDERED
;
544 static int fsck_tree(struct tree
*item
, struct fsck_options
*options
)
547 int has_null_sha1
= 0;
548 int has_full_path
= 0;
549 int has_empty_name
= 0;
553 int has_zero_pad
= 0;
554 int has_bad_modes
= 0;
555 int has_dup_entries
= 0;
556 int not_properly_sorted
= 0;
557 struct tree_desc desc
;
561 if (init_tree_desc_gently(&desc
, item
->buffer
, item
->size
)) {
562 retval
+= report(options
, &item
->object
, FSCK_MSG_BAD_TREE
, "cannot be parsed as a tree");
571 const char *name
, *backslash
;
572 const struct object_id
*oid
;
574 oid
= tree_entry_extract(&desc
, &name
, &mode
);
576 has_null_sha1
|= is_null_oid(oid
);
577 has_full_path
|= !!strchr(name
, '/');
578 has_empty_name
|= !*name
;
579 has_dot
|= !strcmp(name
, ".");
580 has_dotdot
|= !strcmp(name
, "..");
581 has_dotgit
|= is_hfs_dotgit(name
) || is_ntfs_dotgit(name
);
582 has_zero_pad
|= *(char *)desc
.buffer
== '0';
584 if (is_hfs_dotgitmodules(name
) || is_ntfs_dotgitmodules(name
)) {
586 oidset_insert(&gitmodules_found
, oid
);
588 retval
+= report(options
, &item
->object
,
589 FSCK_MSG_GITMODULES_SYMLINK
,
590 ".gitmodules is a symbolic link");
593 if ((backslash
= strchr(name
, '\\'))) {
596 has_dotgit
|= is_ntfs_dotgit(backslash
);
597 if (is_ntfs_dotgitmodules(backslash
)) {
599 oidset_insert(&gitmodules_found
, oid
);
601 retval
+= report(options
, &item
->object
,
602 FSCK_MSG_GITMODULES_SYMLINK
,
603 ".gitmodules is a symbolic link");
605 backslash
= strchr(backslash
, '\\');
609 if (update_tree_entry_gently(&desc
)) {
610 retval
+= report(options
, &item
->object
, FSCK_MSG_BAD_TREE
, "cannot be parsed as a tree");
625 * This is nonstandard, but we had a few of these
626 * early on when we honored the full set of mode
630 if (!options
->strict
)
638 switch (verify_ordered(o_mode
, o_name
, mode
, name
)) {
640 not_properly_sorted
= 1;
655 retval
+= report(options
, &item
->object
, FSCK_MSG_NULL_SHA1
, "contains entries pointing to null sha1");
657 retval
+= report(options
, &item
->object
, FSCK_MSG_FULL_PATHNAME
, "contains full pathnames");
659 retval
+= report(options
, &item
->object
, FSCK_MSG_EMPTY_NAME
, "contains empty pathname");
661 retval
+= report(options
, &item
->object
, FSCK_MSG_HAS_DOT
, "contains '.'");
663 retval
+= report(options
, &item
->object
, FSCK_MSG_HAS_DOTDOT
, "contains '..'");
665 retval
+= report(options
, &item
->object
, FSCK_MSG_HAS_DOTGIT
, "contains '.git'");
667 retval
+= report(options
, &item
->object
, FSCK_MSG_ZERO_PADDED_FILEMODE
, "contains zero-padded file modes");
669 retval
+= report(options
, &item
->object
, FSCK_MSG_BAD_FILEMODE
, "contains bad file modes");
671 retval
+= report(options
, &item
->object
, FSCK_MSG_DUPLICATE_ENTRIES
, "contains duplicate file entries");
672 if (not_properly_sorted
)
673 retval
+= report(options
, &item
->object
, FSCK_MSG_TREE_NOT_SORTED
, "not properly sorted");
677 static int verify_headers(const void *data
, unsigned long size
,
678 struct object
*obj
, struct fsck_options
*options
)
680 const char *buffer
= (const char *)data
;
683 for (i
= 0; i
< size
; i
++) {
686 return report(options
, obj
,
687 FSCK_MSG_NUL_IN_HEADER
,
688 "unterminated header: NUL at offset %ld", i
);
690 if (i
+ 1 < size
&& buffer
[i
+ 1] == '\n')
696 * We did not find double-LF that separates the header
697 * and the body. Not having a body is not a crime but
698 * we do want to see the terminating LF for the last header
701 if (size
&& buffer
[size
- 1] == '\n')
704 return report(options
, obj
,
705 FSCK_MSG_UNTERMINATED_HEADER
, "unterminated header");
708 static int fsck_ident(const char **ident
, struct object
*obj
, struct fsck_options
*options
)
710 const char *p
= *ident
;
713 *ident
= strchrnul(*ident
, '\n');
718 return report(options
, obj
, FSCK_MSG_MISSING_NAME_BEFORE_EMAIL
, "invalid author/committer line - missing space before email");
719 p
+= strcspn(p
, "<>\n");
721 return report(options
, obj
, FSCK_MSG_BAD_NAME
, "invalid author/committer line - bad name");
723 return report(options
, obj
, FSCK_MSG_MISSING_EMAIL
, "invalid author/committer line - missing email");
725 return report(options
, obj
, FSCK_MSG_MISSING_SPACE_BEFORE_EMAIL
, "invalid author/committer line - missing space before email");
727 p
+= strcspn(p
, "<>\n");
729 return report(options
, obj
, FSCK_MSG_BAD_EMAIL
, "invalid author/committer line - bad email");
732 return report(options
, obj
, FSCK_MSG_MISSING_SPACE_BEFORE_DATE
, "invalid author/committer line - missing space before date");
734 if (*p
== '0' && p
[1] != ' ')
735 return report(options
, obj
, FSCK_MSG_ZERO_PADDED_DATE
, "invalid author/committer line - zero-padded date");
736 if (date_overflows(parse_timestamp(p
, &end
, 10)))
737 return report(options
, obj
, FSCK_MSG_BAD_DATE_OVERFLOW
, "invalid author/committer line - date causes integer overflow");
738 if ((end
== p
|| *end
!= ' '))
739 return report(options
, obj
, FSCK_MSG_BAD_DATE
, "invalid author/committer line - bad date");
741 if ((*p
!= '+' && *p
!= '-') ||
747 return report(options
, obj
, FSCK_MSG_BAD_TIMEZONE
, "invalid author/committer line - bad time zone");
752 static int fsck_commit_buffer(struct commit
*commit
, const char *buffer
,
753 unsigned long size
, struct fsck_options
*options
)
755 unsigned char tree_sha1
[20], sha1
[20];
756 struct commit_graft
*graft
;
757 unsigned parent_count
, parent_line_count
= 0, author_count
;
759 const char *buffer_begin
= buffer
;
761 if (verify_headers(buffer
, size
, &commit
->object
, options
))
764 if (!skip_prefix(buffer
, "tree ", &buffer
))
765 return report(options
, &commit
->object
, FSCK_MSG_MISSING_TREE
, "invalid format - expected 'tree' line");
766 if (get_sha1_hex(buffer
, tree_sha1
) || buffer
[40] != '\n') {
767 err
= report(options
, &commit
->object
, FSCK_MSG_BAD_TREE_SHA1
, "invalid 'tree' line format - bad sha1");
772 while (skip_prefix(buffer
, "parent ", &buffer
)) {
773 if (get_sha1_hex(buffer
, sha1
) || buffer
[40] != '\n') {
774 err
= report(options
, &commit
->object
, FSCK_MSG_BAD_PARENT_SHA1
, "invalid 'parent' line format - bad sha1");
781 graft
= lookup_commit_graft(&commit
->object
.oid
);
782 parent_count
= commit_list_count(commit
->parents
);
784 if (graft
->nr_parent
== -1 && !parent_count
)
785 ; /* shallow commit */
786 else if (graft
->nr_parent
!= parent_count
) {
787 err
= report(options
, &commit
->object
, FSCK_MSG_MISSING_GRAFT
, "graft objects missing");
792 if (parent_count
!= parent_line_count
) {
793 err
= report(options
, &commit
->object
, FSCK_MSG_MISSING_PARENT
, "parent objects missing");
799 while (skip_prefix(buffer
, "author ", &buffer
)) {
801 err
= fsck_ident(&buffer
, &commit
->object
, options
);
805 if (author_count
< 1)
806 err
= report(options
, &commit
->object
, FSCK_MSG_MISSING_AUTHOR
, "invalid format - expected 'author' line");
807 else if (author_count
> 1)
808 err
= report(options
, &commit
->object
, FSCK_MSG_MULTIPLE_AUTHORS
, "invalid format - multiple 'author' lines");
811 if (!skip_prefix(buffer
, "committer ", &buffer
))
812 return report(options
, &commit
->object
, FSCK_MSG_MISSING_COMMITTER
, "invalid format - expected 'committer' line");
813 err
= fsck_ident(&buffer
, &commit
->object
, options
);
817 err
= report(options
, &commit
->object
, FSCK_MSG_BAD_TREE
, "could not load commit's tree %s", sha1_to_hex(tree_sha1
));
821 if (memchr(buffer_begin
, '\0', size
)) {
822 err
= report(options
, &commit
->object
, FSCK_MSG_NUL_IN_COMMIT
,
823 "NUL byte in the commit object body");
830 static int fsck_commit(struct commit
*commit
, const char *data
,
831 unsigned long size
, struct fsck_options
*options
)
833 const char *buffer
= data
? data
: get_commit_buffer(commit
, &size
);
834 int ret
= fsck_commit_buffer(commit
, buffer
, size
, options
);
836 unuse_commit_buffer(commit
, buffer
);
840 static int fsck_tag_buffer(struct tag
*tag
, const char *data
,
841 unsigned long size
, struct fsck_options
*options
)
843 unsigned char sha1
[20];
846 char *to_free
= NULL
, *eol
;
847 struct strbuf sb
= STRBUF_INIT
;
852 enum object_type type
;
855 read_sha1_file(tag
->object
.oid
.hash
, &type
, &size
);
857 return report(options
, &tag
->object
,
858 FSCK_MSG_MISSING_TAG_OBJECT
,
859 "cannot read tag object");
861 if (type
!= OBJ_TAG
) {
862 ret
= report(options
, &tag
->object
,
863 FSCK_MSG_TAG_OBJECT_NOT_TAG
,
864 "expected tag got %s",
870 ret
= verify_headers(buffer
, size
, &tag
->object
, options
);
874 if (!skip_prefix(buffer
, "object ", &buffer
)) {
875 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_OBJECT
, "invalid format - expected 'object' line");
878 if (get_sha1_hex(buffer
, sha1
) || buffer
[40] != '\n') {
879 ret
= report(options
, &tag
->object
, FSCK_MSG_BAD_OBJECT_SHA1
, "invalid 'object' line format - bad sha1");
885 if (!skip_prefix(buffer
, "type ", &buffer
)) {
886 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TYPE_ENTRY
, "invalid format - expected 'type' line");
889 eol
= strchr(buffer
, '\n');
891 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TYPE
, "invalid format - unexpected end after 'type' line");
894 if (type_from_string_gently(buffer
, eol
- buffer
, 1) < 0)
895 ret
= report(options
, &tag
->object
, FSCK_MSG_BAD_TYPE
, "invalid 'type' value");
900 if (!skip_prefix(buffer
, "tag ", &buffer
)) {
901 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TAG_ENTRY
, "invalid format - expected 'tag' line");
904 eol
= strchr(buffer
, '\n');
906 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TAG
, "invalid format - unexpected end after 'type' line");
909 strbuf_addf(&sb
, "refs/tags/%.*s", (int)(eol
- buffer
), buffer
);
910 if (check_refname_format(sb
.buf
, 0)) {
911 ret
= report(options
, &tag
->object
, FSCK_MSG_BAD_TAG_NAME
,
912 "invalid 'tag' name: %.*s",
913 (int)(eol
- buffer
), buffer
);
919 if (!skip_prefix(buffer
, "tagger ", &buffer
)) {
920 /* early tags do not contain 'tagger' lines; warn only */
921 ret
= report(options
, &tag
->object
, FSCK_MSG_MISSING_TAGGER_ENTRY
, "invalid format - expected 'tagger' line");
926 ret
= fsck_ident(&buffer
, &tag
->object
, options
);
934 static int fsck_tag(struct tag
*tag
, const char *data
,
935 unsigned long size
, struct fsck_options
*options
)
937 struct object
*tagged
= tag
->tagged
;
940 return report(options
, &tag
->object
, FSCK_MSG_BAD_TAG_OBJECT
, "could not load tagged object");
942 return fsck_tag_buffer(tag
, data
, size
, options
);
945 static int check_submodule_url(const char *url
)
947 struct credential c
= CREDENTIAL_INIT
;
950 if (looks_like_command_line_option(url
))
953 ret
= credential_from_url_gently(&c
, url
, 1);
954 credential_clear(&c
);
958 struct fsck_gitmodules_data
{
960 struct fsck_options
*options
;
964 static int fsck_gitmodules_fn(const char *var
, const char *value
, void *vdata
)
966 struct fsck_gitmodules_data
*data
= vdata
;
967 const char *subsection
, *key
;
971 if (parse_config_key(var
, "submodule", &subsection
, &subsection_len
, &key
) < 0 ||
975 name
= xmemdupz(subsection
, subsection_len
);
976 if (check_submodule_name(name
) < 0)
977 data
->ret
|= report(data
->options
, data
->obj
,
978 FSCK_MSG_GITMODULES_NAME
,
979 "disallowed submodule name: %s",
981 if (!strcmp(key
, "url") && value
&&
982 check_submodule_url(value
) < 0)
983 data
->ret
|= report(data
->options
, data
->obj
,
984 FSCK_MSG_GITMODULES_URL
,
985 "disallowed submodule url: %s",
987 if (!strcmp(key
, "path") && value
&&
988 looks_like_command_line_option(value
))
989 data
->ret
|= report(data
->options
, data
->obj
,
990 FSCK_MSG_GITMODULES_PATH
,
991 "disallowed submodule path: %s",
993 if (!strcmp(key
, "update") && value
&&
994 parse_submodule_update_type(value
) == SM_UPDATE_COMMAND
)
995 data
->ret
|= report(data
->options
, data
->obj
,
996 FSCK_MSG_GITMODULES_UPDATE
,
997 "disallowed submodule update setting: %s",
1004 static int fsck_blob(struct blob
*blob
, const char *buf
,
1005 unsigned long size
, struct fsck_options
*options
)
1007 struct fsck_gitmodules_data data
;
1009 if (!oidset_contains(&gitmodules_found
, &blob
->object
.oid
))
1011 oidset_insert(&gitmodules_done
, &blob
->object
.oid
);
1015 * A missing buffer here is a sign that the caller found the
1016 * blob too gigantic to load into memory. Let's just consider
1019 return report(options
, &blob
->object
,
1020 FSCK_MSG_GITMODULES_PARSE
,
1021 ".gitmodules too large to parse");
1024 data
.obj
= &blob
->object
;
1025 data
.options
= options
;
1027 if (git_config_from_mem(fsck_gitmodules_fn
, CONFIG_ORIGIN_BLOB
,
1028 ".gitmodules", buf
, size
, &data
))
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 ret
|= report(options
, &blob
->object
,
1087 FSCK_MSG_GITMODULES_BLOB
,
1088 "non-blob found at .gitmodules");
1092 buf
= read_sha1_file(oid
->hash
, &type
, &size
);
1094 if (is_promisor_object(&blob
->object
.oid
))
1096 ret
|= report(options
, &blob
->object
,
1097 FSCK_MSG_GITMODULES_MISSING
,
1098 "unable to read .gitmodules blob");
1102 if (type
== OBJ_BLOB
)
1103 ret
|= fsck_blob(blob
, buf
, size
, options
);
1105 ret
|= report(options
, &blob
->object
,
1106 FSCK_MSG_GITMODULES_BLOB
,
1107 "non-blob found at .gitmodules");
1112 oidset_clear(&gitmodules_found
);
1113 oidset_clear(&gitmodules_done
);