Merge branch 'hn/config-in-code-comment'

Header update.

* hn/config-in-code-comment:
config: document git config getter return value

diff --combined config.h
index 1d56fe6aa28fe1a244118f00733e3829217b71ca,38e55c86bf6a04d0cd9be0a4e709f0cdd3bf606f..2d5c18b05f85e1a6a7f954442f5d7565e9769212
--- 1/config.h
--- 2/config.h
+++ b/config.h
@@@ -54,12 -54,6 +54,12 @@@ struct config_options 
        const char *git_dir;
        config_parser_event_fn_t event_fn;
        void *event_fn_data;
 +      enum config_error_action {
 +              CONFIG_ERROR_UNSET = 0, /* use source-specific default */
 +              CONFIG_ERROR_DIE, /* die() on error */
 +              CONFIG_ERROR_ERROR, /* error() on error, return -1 */
 +              CONFIG_ERROR_SILENT, /* return -1 */
 +      } error_action;
  };
  
  typedef int (*config_fn_t)(const char *, const char *, void *);
@@@ -68,11 -62,8 +68,11 @@@ extern int git_config_from_file(config_
  extern int git_config_from_file_with_options(config_fn_t fn, const char *,
                                             void *,
                                             const struct config_options *);
 -extern int git_config_from_mem(config_fn_t fn, const enum config_origin_type,
 -                                      const char *name, const char *buf, size_t len, void *data);
 +extern int git_config_from_mem(config_fn_t fn,
 +                             const enum config_origin_type,
 +                             const char *name,
 +                             const char *buf, size_t len,
 +                             void *data, const struct config_options *opts);
  extern int git_config_from_blob_oid(config_fn_t fn, const char *name,
                                    const struct object_id *oid, void *data);
  extern void git_config_push_parameter(const char *text);
@@@ -82,7 -73,6 +82,7 @@@ extern void git_config(config_fn_t fn, 
  extern int config_with_options(config_fn_t fn, void *,
                               struct git_config_source *config_source,
                               const struct config_options *opts);
 +extern int git_parse_ssize_t(const char *, ssize_t *);
  extern int git_parse_ulong(const char *, unsigned long *);
  extern int git_parse_maybe_bool(const char *);
  extern int git_config_int(const char *, const char *);
@@@ -189,9 -179,14 +189,14 @@@ struct config_set 
  
  extern void git_configset_init(struct config_set *cs);
  extern int git_configset_add_file(struct config_set *cs, const char *filename);
- extern int git_configset_get_value(struct config_set *cs, const char *key, const char **value);
  extern const struct string_list *git_configset_get_value_multi(struct config_set *cs, const char *key);
  extern void git_configset_clear(struct config_set *cs);
+ 
+ /*
+  * These functions return 1 if not found, and 0 if found, leaving the found
+  * value in the 'dest' pointer.
+  */
+ extern int git_configset_get_value(struct config_set *cs, const char *key, const char **dest);
  extern int git_configset_get_string_const(struct config_set *cs, const char *key, const char **dest);
  extern int git_configset_get_string(struct config_set *cs, const char *key, char **dest);
  extern int git_configset_get_int(struct config_set *cs, const char *key, int *dest);
@@@ -225,6 -220,16 +230,6 @@@ extern int repo_config_get_maybe_bool(s
  extern int repo_config_get_pathname(struct repository *repo,
                                    const char *key, const char **dest);
  
 -/*
 - * Note: This function exists solely to maintain backward compatibility with
 - * 'fetch' and 'update_clone' storing configuration in '.gitmodules' and should
 - * NOT be used anywhere else.
 - *
 - * Runs the provided config function on the '.gitmodules' file found in the
 - * working directory.
 - */
 -extern void config_from_gitmodules(config_fn_t fn, void *data);
 -
  extern int git_config_get_value(const char *key, const char **value);
  extern const struct string_list *git_config_get_value_multi(const char *key);
  extern void git_config_clear(void);
@@@ -257,8 -262,4 +262,8 @@@ struct key_value_info 
  extern NORETURN void git_die_config(const char *key, const char *err, ...) __attribute__((format(printf, 2, 3)));
  extern NORETURN void git_die_config_linenr(const char *key, const char *filename, int linenr);
  
 +#define LOOKUP_CONFIG(mapping, var) \
 +      lookup_config(mapping, ARRAY_SIZE(mapping), var)
 +int lookup_config(const char **mapping, int nr_mapping, const char *var);
 +
  #endif /* CONFIG_H */