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Commit | Line | Data |
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95fc7512 DB |
1 | #ifndef REFS_H |
2 | #define REFS_H | |
3 | ||
4bd18c43 | 4 | struct ref_lock { |
434cd0cd | 5 | char *ref_name; |
1655707c | 6 | char *orig_ref_name; |
c33d5174 | 7 | struct lock_file *lk; |
4bd18c43 SP |
8 | unsigned char old_sha1[20]; |
9 | int lock_fd; | |
732232a1 | 10 | int force_write; |
4bd18c43 SP |
11 | }; |
12 | ||
98ac34b2 JH |
13 | #define REF_ISSYMREF 0x01 |
14 | #define REF_ISPACKED 0x02 | |
15 | #define REF_ISBROKEN 0x04 | |
f4204ab9 | 16 | |
8a65ff76 LT |
17 | /* |
18 | * Calls the specified function for each ref file until it returns nonzero, | |
19 | * and returns the value | |
20 | */ | |
8da19775 | 21 | typedef int each_ref_fn(const char *refname, const unsigned char *sha1, int flags, void *cb_data); |
cb5d709f JH |
22 | extern int head_ref(each_ref_fn, void *); |
23 | extern int for_each_ref(each_ref_fn, void *); | |
2a8177b6 | 24 | extern int for_each_ref_in(const char *, each_ref_fn, void *); |
cb5d709f JH |
25 | extern int for_each_tag_ref(each_ref_fn, void *); |
26 | extern int for_each_branch_ref(each_ref_fn, void *); | |
27 | extern int for_each_remote_ref(each_ref_fn, void *); | |
29268700 | 28 | extern int for_each_replace_ref(each_ref_fn, void *); |
d08bae7e | 29 | extern int for_each_glob_ref(each_ref_fn, const char *pattern, void *); |
b09fe971 | 30 | extern int for_each_glob_ref_in(each_ref_fn, const char *pattern, const char* prefix, void *); |
8a65ff76 | 31 | |
9ef6aeb0 HV |
32 | extern int head_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data); |
33 | extern int for_each_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data); | |
34 | extern int for_each_ref_in_submodule(const char *submodule, const char *prefix, | |
35 | each_ref_fn fn, void *cb_data); | |
36 | extern int for_each_tag_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data); | |
37 | extern int for_each_branch_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data); | |
38 | extern int for_each_remote_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data); | |
39 | ||
a1bea2c1 JT |
40 | extern int head_ref_namespaced(each_ref_fn fn, void *cb_data); |
41 | extern int for_each_namespaced_ref(each_ref_fn fn, void *cb_data); | |
42 | ||
894a9d33 TR |
43 | static inline const char *has_glob_specials(const char *pattern) |
44 | { | |
45 | return strpbrk(pattern, "?*["); | |
46 | } | |
47 | ||
f8948e2f JH |
48 | /* can be used to learn about broken ref and symref */ |
49 | extern int for_each_rawref(each_ref_fn, void *); | |
50 | ||
3cf6134a | 51 | extern void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname); |
f8948e2f | 52 | |
e142a3c6 DB |
53 | /* |
54 | * Extra refs will be listed by for_each_ref() before any actual refs | |
55 | * for the duration of this process or until clear_extra_refs() is | |
56 | * called. Only extra refs added before for_each_ref() is called will | |
57 | * be listed on a given call of for_each_ref(). | |
58 | */ | |
59 | extern void add_extra_ref(const char *refname, const unsigned char *sha1, int flags); | |
60 | extern void clear_extra_refs(void); | |
2c5c66be | 61 | extern int ref_exists(const char *); |
e142a3c6 | 62 | |
dfefa935 | 63 | extern int peel_ref(const char *refname, unsigned char *sha1); |
cf0adba7 | 64 | |
4bd18c43 | 65 | /** Locks a "refs/" ref returning the lock on success and NULL on failure. **/ |
dfefa935 | 66 | extern struct ref_lock *lock_ref_sha1(const char *refname, const unsigned char *old_sha1); |
4bd18c43 SP |
67 | |
68 | /** Locks any ref (for 'HEAD' type refs). */ | |
68db31cc | 69 | #define REF_NODEREF 0x01 |
dfefa935 MH |
70 | extern struct ref_lock *lock_any_ref_for_update(const char *refname, |
71 | const unsigned char *old_sha1, | |
72 | int flags); | |
95fc7512 | 73 | |
435fc852 BC |
74 | /** Close the file descriptor owned by a lock and return the status */ |
75 | extern int close_ref(struct ref_lock *lock); | |
76 | ||
77 | /** Close and commit the ref locked by the lock */ | |
78 | extern int commit_ref(struct ref_lock *lock); | |
79 | ||
4bd18c43 | 80 | /** Release any lock taken but not written. **/ |
e5f38ec3 | 81 | extern void unlock_ref(struct ref_lock *lock); |
95fc7512 | 82 | |
4bd18c43 SP |
83 | /** Writes sha1 into the ref specified by the lock. **/ |
84 | extern int write_ref_sha1(struct ref_lock *lock, const unsigned char *sha1, const char *msg); | |
95fc7512 | 85 | |
8be8bde7 MH |
86 | /* |
87 | * Invalidate the reference cache for the specified submodule. Use | |
88 | * submodule=NULL to invalidate the cache for the main module. This | |
89 | * function must be called if references are changed via a mechanism | |
90 | * other than the refs API. | |
91 | */ | |
92 | extern void invalidate_ref_cache(const char *submodule); | |
93 | ||
859c3017 | 94 | /** Setup reflog before using. **/ |
157aaea5 | 95 | int log_ref_setup(const char *ref_name, char *logfile, int bufsize); |
859c3017 | 96 | |
d556fae2 | 97 | /** Reads log for the value of ref during at_time. **/ |
dfefa935 MH |
98 | extern int read_ref_at(const char *refname, unsigned long at_time, int cnt, |
99 | unsigned char *sha1, char **msg, | |
100 | unsigned long *cutoff_time, int *cutoff_tz, int *cutoff_cnt); | |
d556fae2 | 101 | |
2ff81662 | 102 | /* iterate over reflog entries */ |
883d60fa | 103 | typedef int each_reflog_ent_fn(unsigned char *osha1, unsigned char *nsha1, const char *, unsigned long, int, const char *, void *); |
dfefa935 MH |
104 | int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, void *cb_data); |
105 | int for_each_recent_reflog_ent(const char *refname, each_reflog_ent_fn fn, long, void *cb_data); | |
2ff81662 | 106 | |
eb8381c8 NP |
107 | /* |
108 | * Calls the specified function for each reflog file until it returns nonzero, | |
109 | * and returns the value | |
110 | */ | |
111 | extern int for_each_reflog(each_ref_fn, void *); | |
112 | ||
8d9c5010 MH |
113 | #define REFNAME_ALLOW_ONELEVEL 1 |
114 | #define REFNAME_REFSPEC_PATTERN 2 | |
dce4bab6 | 115 | #define REFNAME_DOT_COMPONENT 4 |
8d9c5010 MH |
116 | |
117 | /* | |
dfefa935 MH |
118 | * Return 0 iff refname has the correct format for a refname according |
119 | * to the rules described in Documentation/git-check-ref-format.txt. | |
120 | * If REFNAME_ALLOW_ONELEVEL is set in flags, then accept one-level | |
8d9c5010 MH |
121 | * reference names. If REFNAME_REFSPEC_PATTERN is set in flags, then |
122 | * allow a "*" wildcard character in place of one of the name | |
dce4bab6 MH |
123 | * components. No leading or repeated slashes are accepted. If |
124 | * REFNAME_DOT_COMPONENT is set in flags, then allow refname | |
125 | * components to start with "." (but not a whole component equal to | |
126 | * "." or ".."). | |
8d9c5010 | 127 | */ |
dfefa935 | 128 | extern int check_refname_format(const char *refname, int flags); |
95fc7512 | 129 | |
4577e483 | 130 | extern const char *prettify_refname(const char *refname); |
dfefa935 | 131 | extern char *shorten_unambiguous_ref(const char *refname, int strict); |
a9c37a72 | 132 | |
c976d415 | 133 | /** rename ref, return 0 on success **/ |
678d0f4c | 134 | extern int rename_ref(const char *oldref, const char *newref, const char *logmsg); |
c976d415 | 135 | |
7f820bd9 MH |
136 | /** |
137 | * Resolve refname in the nested "gitlink" repository that is located | |
138 | * at path. If the resolution is successful, return 0 and set sha1 to | |
139 | * the name of the object; otherwise, return a non-zero value. | |
140 | */ | |
141 | extern int resolve_gitlink_ref(const char *path, const char *refname, unsigned char *sha1); | |
0ebde32c | 142 | |
3d9f037c CR |
143 | /** lock a ref and then write its file */ |
144 | enum action_on_err { MSG_ON_ERR, DIE_ON_ERR, QUIET_ON_ERR }; | |
145 | int update_ref(const char *action, const char *refname, | |
146 | const unsigned char *sha1, const unsigned char *oldval, | |
147 | int flags, enum action_on_err onerr); | |
148 | ||
95fc7512 | 149 | #endif /* REFS_H */ |