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153 lines
6.1 KiB
153 lines
6.1 KiB
#ifndef REFS_H |
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#define REFS_H |
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struct ref_lock { |
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char *ref_name; |
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char *orig_ref_name; |
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struct lock_file *lk; |
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unsigned char old_sha1[20]; |
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int lock_fd; |
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int force_write; |
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}; |
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#define REF_ISSYMREF 0x01 |
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#define REF_ISPACKED 0x02 |
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#define REF_ISBROKEN 0x04 |
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/* |
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* Calls the specified function for each ref file until it returns |
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* nonzero, and returns the value. Please note that it is not safe to |
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* modify references while an iteration is in progress, unless the |
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* same callback function invocation that modifies the reference also |
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* returns a nonzero value to immediately stop the iteration. |
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*/ |
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typedef int each_ref_fn(const char *refname, const unsigned char *sha1, int flags, void *cb_data); |
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extern int head_ref(each_ref_fn, void *); |
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extern int for_each_ref(each_ref_fn, void *); |
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extern int for_each_ref_in(const char *, each_ref_fn, void *); |
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extern int for_each_tag_ref(each_ref_fn, void *); |
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extern int for_each_branch_ref(each_ref_fn, void *); |
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extern int for_each_remote_ref(each_ref_fn, void *); |
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extern int for_each_replace_ref(each_ref_fn, void *); |
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extern int for_each_glob_ref(each_ref_fn, const char *pattern, void *); |
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extern int for_each_glob_ref_in(each_ref_fn, const char *pattern, const char* prefix, void *); |
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extern int head_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data); |
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extern int for_each_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data); |
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extern int for_each_ref_in_submodule(const char *submodule, const char *prefix, |
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each_ref_fn fn, void *cb_data); |
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extern int for_each_tag_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data); |
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extern int for_each_branch_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data); |
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extern int for_each_remote_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data); |
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extern int head_ref_namespaced(each_ref_fn fn, void *cb_data); |
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extern int for_each_namespaced_ref(each_ref_fn fn, void *cb_data); |
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static inline const char *has_glob_specials(const char *pattern) |
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{ |
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return strpbrk(pattern, "?*["); |
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} |
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/* can be used to learn about broken ref and symref */ |
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extern int for_each_rawref(each_ref_fn, void *); |
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extern void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname); |
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/* |
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* Add a reference to the in-memory packed reference cache. To actually |
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* write the reference to the packed-refs file, call pack_refs(). |
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*/ |
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extern void add_packed_ref(const char *refname, const unsigned char *sha1); |
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extern int ref_exists(const char *); |
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extern int peel_ref(const char *refname, unsigned char *sha1); |
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/** Locks a "refs/" ref returning the lock on success and NULL on failure. **/ |
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extern struct ref_lock *lock_ref_sha1(const char *refname, const unsigned char *old_sha1); |
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/** Locks any ref (for 'HEAD' type refs). */ |
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#define REF_NODEREF 0x01 |
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extern struct ref_lock *lock_any_ref_for_update(const char *refname, |
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const unsigned char *old_sha1, |
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int flags); |
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/** Close the file descriptor owned by a lock and return the status */ |
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extern int close_ref(struct ref_lock *lock); |
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/** Close and commit the ref locked by the lock */ |
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extern int commit_ref(struct ref_lock *lock); |
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/** Release any lock taken but not written. **/ |
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extern void unlock_ref(struct ref_lock *lock); |
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/** Writes sha1 into the ref specified by the lock. **/ |
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extern int write_ref_sha1(struct ref_lock *lock, const unsigned char *sha1, const char *msg); |
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/* |
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* Invalidate the reference cache for the specified submodule. Use |
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* submodule=NULL to invalidate the cache for the main module. This |
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* function must be called if references are changed via a mechanism |
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* other than the refs API. |
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*/ |
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extern void invalidate_ref_cache(const char *submodule); |
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/** Setup reflog before using. **/ |
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int log_ref_setup(const char *ref_name, char *logfile, int bufsize); |
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/** Reads log for the value of ref during at_time. **/ |
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extern int read_ref_at(const char *refname, unsigned long at_time, int cnt, |
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unsigned char *sha1, char **msg, |
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unsigned long *cutoff_time, int *cutoff_tz, int *cutoff_cnt); |
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/* iterate over reflog entries */ |
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typedef int each_reflog_ent_fn(unsigned char *osha1, unsigned char *nsha1, const char *, unsigned long, int, const char *, void *); |
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int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, void *cb_data); |
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int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, void *cb_data); |
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/* |
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* Calls the specified function for each reflog file until it returns nonzero, |
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* and returns the value |
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*/ |
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extern int for_each_reflog(each_ref_fn, void *); |
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#define REFNAME_ALLOW_ONELEVEL 1 |
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#define REFNAME_REFSPEC_PATTERN 2 |
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#define REFNAME_DOT_COMPONENT 4 |
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/* |
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* Return 0 iff refname has the correct format for a refname according |
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* to the rules described in Documentation/git-check-ref-format.txt. |
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* If REFNAME_ALLOW_ONELEVEL is set in flags, then accept one-level |
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* reference names. If REFNAME_REFSPEC_PATTERN is set in flags, then |
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* allow a "*" wildcard character in place of one of the name |
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* components. No leading or repeated slashes are accepted. If |
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* REFNAME_DOT_COMPONENT is set in flags, then allow refname |
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* components to start with "." (but not a whole component equal to |
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* "." or ".."). |
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*/ |
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extern int check_refname_format(const char *refname, int flags); |
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extern const char *prettify_refname(const char *refname); |
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extern char *shorten_unambiguous_ref(const char *refname, int strict); |
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/** rename ref, return 0 on success **/ |
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extern int rename_ref(const char *oldref, const char *newref, const char *logmsg); |
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/** |
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* Resolve refname in the nested "gitlink" repository that is located |
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* at path. If the resolution is successful, return 0 and set sha1 to |
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* the name of the object; otherwise, return a non-zero value. |
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*/ |
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extern int resolve_gitlink_ref(const char *path, const char *refname, unsigned char *sha1); |
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/** lock a ref and then write its file */ |
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enum action_on_err { MSG_ON_ERR, DIE_ON_ERR, QUIET_ON_ERR }; |
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int update_ref(const char *action, const char *refname, |
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const unsigned char *sha1, const unsigned char *oldval, |
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int flags, enum action_on_err onerr); |
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extern int parse_hide_refs_config(const char *var, const char *value, const char *); |
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extern int ref_is_hidden(const char *); |
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#endif /* REFS_H */
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