general improvements

diff --git a/parse-options.h b/parse-options.h
index 1dd3523c15a0020d4886dcf1c516dad43b529d0c..38a33a087ec2aa783be7e2276d669247bd9f8d10 100644 (file)
--- a/parse-options.h
+++ b/parse-options.h
@@ -7,6 +7,7 @@ enum parse_opt_type {
        OPTION_ARGUMENT,
        OPTION_GROUP,
        OPTION_NUMBER,
+       OPTION_ALIAS,
        /* options with no arguments */
        OPTION_BIT,
        OPTION_NEGBIT,
@@ -45,6 +46,15 @@ enum parse_opt_option_flags {
        PARSE_OPT_COMP_ARG = 1024
 };
 
+enum parse_opt_result {
+       PARSE_OPT_COMPLETE = -3,
+       PARSE_OPT_HELP = -2,
+       PARSE_OPT_ERROR = -1,   /* must be the same as error() */
+       PARSE_OPT_DONE = 0,     /* fixed so that "return 0" works */
+       PARSE_OPT_NON_OPTION,
+       PARSE_OPT_UNKNOWN
+};
+
 struct option;
 typedef int parse_opt_cb(const struct option *, const char *arg, int unset);
 
@@ -183,6 +193,9 @@ struct option {
          N_("no-op (backward compatibility)"),         \
          PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, parse_opt_noop_cb }
 
+#define OPT_ALIAS(s, l, source_long_name) \
+       { OPTION_ALIAS, (s), (l), (source_long_name) }
+
 /*
  * parse_options() will filter out the processed options and leave the
  * non-option arguments in argv[]. argv0 is assumed program name and
@@ -237,15 +250,6 @@ const char *optname(const struct option *opt, int flags);
 
 /*----- incremental advanced APIs -----*/
 
-enum parse_opt_result {
-       PARSE_OPT_COMPLETE = -3,
-       PARSE_OPT_HELP = -2,
-       PARSE_OPT_ERROR = -1,   /* must be the same as error() */
-       PARSE_OPT_DONE = 0,     /* fixed so that "return 0" works */
-       PARSE_OPT_NON_OPTION,
-       PARSE_OPT_UNKNOWN
-};
-
 /*
  * It's okay for the caller to consume argv/argc in the usual way.
  * Other fields of that structure are private to parse-options and should not
@@ -258,6 +262,8 @@ struct parse_opt_ctx_t {
        const char *opt;
        int flags;
        const char *prefix;
+       const char **alias_groups; /* must be in groups of 3 elements! */
+       struct option *updated_options;
 };
 
 void parse_options_start(struct parse_opt_ctx_t *ctx,
@@ -270,6 +276,7 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
 
 int parse_options_end(struct parse_opt_ctx_t *ctx);
 
+struct option *parse_options_dup(const struct option *a);
 struct option *parse_options_concat(struct option *a, struct option *b);
 
 /*----- some often used options -----*/
@@ -277,12 +284,18 @@ int parse_opt_abbrev_cb(const struct option *, const char *, int);
 int parse_opt_expiry_date_cb(const struct option *, const char *, int);
 int parse_opt_color_flag_cb(const struct option *, const char *, int);
 int parse_opt_verbosity_cb(const struct option *, const char *, int);
+/* value is struct oid_array* */
 int parse_opt_object_name(const struct option *, const char *, int);
+/* value is struct object_id* */
+int parse_opt_object_id(const struct option *, const char *, int);
 int parse_opt_commits(const struct option *, const char *, int);
+int parse_opt_commit(const struct option *, const char *, int);
 int parse_opt_tertiary(const struct option *, const char *, int);
 int parse_opt_string_list(const struct option *, const char *, int);
 int parse_opt_noop_cb(const struct option *, const char *, int);
-int parse_opt_unknown_cb(struct parse_opt_ctx_t *ctx, const struct option *, const char *, int);
+enum parse_opt_result parse_opt_unknown_cb(struct parse_opt_ctx_t *ctx,
+                                          const struct option *,
+                                          const char *, int);
 int parse_opt_passthru(const struct option *, const char *, int);
 int parse_opt_passthru_argv(const struct option *, const char *, int);