10 #define REACHABLE 0x0001
12 static int show_unreachable
= 0;
13 static unsigned char head_sha1
[20];
15 static void check_connectivity(void)
19 /* Look up all the requirements, warn about missing objects.. */
20 for (i
= 0; i
< nr_objs
; i
++) {
21 struct object
*obj
= objs
[i
];
23 if (show_unreachable
&& !(obj
->flags
& REACHABLE
)) {
24 printf("unreachable %s %s\n", obj
->type
, sha1_to_hex(obj
->sha1
));
29 printf("missing %s %s\n", obj
->type
,
30 sha1_to_hex(obj
->sha1
));
33 printf("dangling %s %s\n", obj
->type
,
34 sha1_to_hex(obj
->sha1
));
39 static int fsck_tree(unsigned char *sha1
, void *data
, unsigned long size
)
41 struct tree
*item
= lookup_tree(sha1
);
44 if (item
->has_full_path
) {
45 fprintf(stderr
, "warning: fsck-cache: tree %s "
46 "has full pathnames in it\n", sha1_to_hex(sha1
));
51 static int fsck_commit(unsigned char *sha1
, void *data
, unsigned long size
)
53 struct commit
*commit
= lookup_commit(sha1
);
54 if (parse_commit(commit
))
59 printf("root %s\n", sha1_to_hex(sha1
));
63 static int fsck_blob(unsigned char *sha1
, void *data
, unsigned long size
)
65 struct blob
*blob
= lookup_blob(sha1
);
66 blob
->object
.parsed
= 1;
70 static int fsck_entry(unsigned char *sha1
, char *tag
, void *data
,
73 if (!strcmp(tag
, "blob")) {
74 if (fsck_blob(sha1
, data
, size
) < 0)
76 } else if (!strcmp(tag
, "tree")) {
77 if (fsck_tree(sha1
, data
, size
) < 0)
79 } else if (!strcmp(tag
, "commit")) {
80 if (fsck_commit(sha1
, data
, size
) < 0)
87 static int fsck_name(char *hex
)
89 unsigned char sha1
[20];
90 if (!get_sha1_hex(hex
, sha1
)) {
91 unsigned long mapsize
;
92 void *map
= map_sha1_file(sha1
, &mapsize
);
96 void *buffer
= unpack_sha1_file(map
, mapsize
, type
, &size
);
99 if (check_sha1_signature(sha1
, buffer
, size
, type
) < 0)
100 printf("sha1 mismatch %s\n", sha1_to_hex(sha1
));
101 munmap(map
, mapsize
);
102 if (!fsck_entry(sha1
, type
, buffer
, size
))
109 static int fsck_dir(int i
, char *path
)
111 DIR *dir
= opendir(path
);
115 return error("missing sha1 directory '%s'", path
);
118 while ((de
= readdir(dir
)) != NULL
) {
120 int len
= strlen(de
->d_name
);
124 if (de
->d_name
[1] != '.')
127 if (de
->d_name
[0] != '.')
131 sprintf(name
, "%02x", i
);
132 memcpy(name
+2, de
->d_name
, len
+1);
133 if (!fsck_name(name
))
136 fprintf(stderr
, "bad sha1 file: %s/%s\n", path
, de
->d_name
);
142 int main(int argc
, char **argv
)
147 sha1_dir
= getenv(DB_ENVIRONMENT
) ? : DEFAULT_DB_ENVIRONMENT
;
148 for (i
= 0; i
< 256; i
++) {
149 static char dir
[4096];
150 sprintf(dir
, "%s/%02x", sha1_dir
, i
);
155 for (i
= 1; i
< argc
; i
++) {
156 if (!strcmp(argv
[i
], "--unreachable")) {
157 show_unreachable
= 1;
160 if (!get_sha1_hex(argv
[i
], head_sha1
)) {
161 struct object
*obj
= &lookup_commit(head_sha1
)->object
;
163 mark_reachable(obj
, REACHABLE
);
167 error("fsck-cache [[--unreachable] <head-sha1>*]");
171 if (show_unreachable
) {
172 fprintf(stderr
, "unable to do reachability without a head\n");
173 show_unreachable
= 0;
175 fprintf(stderr
, "expect dangling commits - potential heads - due to lack of head information\n");
178 check_connectivity();