git-commit-vandalism/attr.h
Junio C Hamano 7f8641112d attr: convert git_all_attrs() to use "struct attr_check"
This updates the other two ways the attribute check is done via an
array of "struct attr_check_item" elements.  These two niches
appear only in "git check-attr".

 * The caller does not know offhand what attributes it wants to ask
   about and cannot use attr_check_initl() to prepare the
   attr_check structure.

 * The caller may not know what attributes it wants to ask at all,
   and instead wants to learn everything that the given path has.

Such a caller can call attr_check_alloc() to allocate an empty
attr_check, and then call attr_check_append() to add attribute names
one by one.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-01 13:46:52 -08:00

72 lines
1.9 KiB
C

#ifndef ATTR_H
#define ATTR_H
/* An attribute is a pointer to this opaque structure */
struct git_attr;
/*
* Given a string, return the gitattribute object that
* corresponds to it.
*/
struct git_attr *git_attr(const char *);
/* Internal use */
extern const char git_attr__true[];
extern const char git_attr__false[];
/* For public to check git_attr_check results */
#define ATTR_TRUE(v) ((v) == git_attr__true)
#define ATTR_FALSE(v) ((v) == git_attr__false)
#define ATTR_UNSET(v) ((v) == NULL)
/*
* Send one or more git_attr_check to git_check_attrs(), and
* each 'value' member tells what its value is.
* Unset one is returned as NULL.
*/
struct attr_check_item {
const struct git_attr *attr;
const char *value;
};
struct attr_check {
int nr;
int alloc;
struct attr_check_item *items;
};
extern struct attr_check *attr_check_alloc(void);
extern struct attr_check *attr_check_initl(const char *, ...);
extern struct attr_check_item *attr_check_append(struct attr_check *check,
const struct git_attr *attr);
extern void attr_check_reset(struct attr_check *check);
extern void attr_check_clear(struct attr_check *check);
extern void attr_check_free(struct attr_check *check);
/*
* Return the name of the attribute represented by the argument. The
* return value is a pointer to a null-delimited string that is part
* of the internal data structure; it should not be modified or freed.
*/
extern const char *git_attr_name(const struct git_attr *);
int git_check_attrs(const char *path, int, struct attr_check_item *);
extern int git_check_attr(const char *path, struct attr_check *check);
/*
* Retrieve all attributes that apply to the specified path.
* check holds the attributes and their values.
*/
extern void git_all_attrs(const char *path, struct attr_check *check);
enum git_attr_direction {
GIT_ATTR_CHECKIN,
GIT_ATTR_CHECKOUT,
GIT_ATTR_INDEX
};
void git_attr_set_direction(enum git_attr_direction, struct index_state *);
#endif /* ATTR_H */