attr.h

   1 #ifndef ATTR_H
   2 #define ATTR_H
   3
   4 struct index_state;
   5
   6 /* An attribute is a pointer to this opaque structure */
   7 struct git_attr;
   8
   9 /* opaque structures used internally for attribute collection */
  10 struct all_attrs_item;
  11 struct attr_stack;
  12 struct index_state;
  13
  14 /*
  15  * Given a string, return the gitattribute object that
  16  * corresponds to it.
  17  */
  18 const struct git_attr *git_attr(const char *);
  19
  20 /* Internal use */
  21 extern const char git_attr__true[];
  22 extern const char git_attr__false[];
  23
  24 /* For public to check git_attr_check results */
  25 #define ATTR_TRUE(v) ((v) == git_attr__true)
  26 #define ATTR_FALSE(v) ((v) == git_attr__false)
  27 #define ATTR_UNSET(v) ((v) == NULL)
  28
  29 /*
  30  * Send one or more git_attr_check to git_check_attrs(), and
  31  * each 'value' member tells what its value is.
  32  * Unset one is returned as NULL.
  33  */
  34 struct attr_check_item {
  35         const struct git_attr *attr;
  36         const char *value;
  37 };
  38
  39 struct attr_check {
  40         int nr;
  41         int alloc;
  42         struct attr_check_item *items;
  43         int all_attrs_nr;
  44         struct all_attrs_item *all_attrs;
  45         struct attr_stack *stack;
  46 };
  47
  48 struct attr_check *attr_check_alloc(void);
  49 struct attr_check *attr_check_initl(const char *, ...);
  50 struct attr_check *attr_check_dup(const struct attr_check *check);
  51
  52 struct attr_check_item *attr_check_append(struct attr_check *check,
  53                                           const struct git_attr *attr);
  54
  55 void attr_check_reset(struct attr_check *check);
  56 void attr_check_clear(struct attr_check *check);
  57 void attr_check_free(struct attr_check *check);
  58
  59 /*
  60  * Return the name of the attribute represented by the argument.  The
  61  * return value is a pointer to a null-delimited string that is part
  62  * of the internal data structure; it should not be modified or freed.
  63  */
  64 const char *git_attr_name(const struct git_attr *);
  65
  66 int git_check_attr(const struct index_state *istate,
  67                    const char *path, struct attr_check *check);
  68
  69 /*
  70  * Retrieve all attributes that apply to the specified path.
  71  * check holds the attributes and their values.
  72  */
  73 void git_all_attrs(const struct index_state *istate,
  74                    const char *path, struct attr_check *check);
  75
  76 enum git_attr_direction {
  77         GIT_ATTR_CHECKIN,
  78         GIT_ATTR_CHECKOUT,
  79         GIT_ATTR_INDEX
  80 };
  81 void git_attr_set_direction(enum git_attr_direction new_direction);
  82
  83 void attr_start(void);
  84
  85 #endif /* ATTR_H */