[PATCH 3/3] parse-options: remove PARSE_OPT_NEGHELP

["René Scharfe" <rene.scharfe@lsrfire.ath.cx>]

PARSE_OPT_NEGHELP is confusing because short options defined with that
flag do the opposite of what the helptext says. It is also not needed
anymore now that options starting with no- can be negated by removing
that prefix. Convert its only two users to OPT_BOOL() and then remove
support for PARSE_OPT_NEGHELP.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
---
 builtin/fast-export.c |    4 +---
 builtin/grep.c        |   15 +++++++--------
 parse-options.c       |    6 ++----
 parse-options.h       |    4 ----
 4 files changed, 10 insertions(+), 19 deletions(-)

diff --git a/builtin/fast-export.c b/builtin/fast-export.c
index 08fed98..19509ea 100644
--- a/builtin/fast-export.c
+++ b/builtin/fast-export.c
@@ -647,9 +647,7 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
 			     "Output full tree for each commit"),
 		OPT_BOOLEAN(0, "use-done-feature", &use_done_feature,
 			     "Use the done feature to terminate the stream"),
-		{ OPTION_NEGBIT, 0, "data", &no_data, NULL,
-			"Skip output of blob data",
-			PARSE_OPT_NOARG | PARSE_OPT_NEGHELP, NULL, 1 },
+		OPT_BOOL(0, "no-data", &no_data, "Skip output of blob data"),
 		OPT_END()
 	};
 
diff --git a/builtin/grep.c b/builtin/grep.c
index e4ea900..b151467 100644
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -671,7 +671,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
 	struct string_list path_list = STRING_LIST_INIT_NODUP;
 	int i;
 	int dummy;
-	int use_index = 1;
+	int no_index = 0;
 	enum {
 		pattern_type_unspecified = 0,
 		pattern_type_bre,
@@ -684,9 +684,8 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
 	struct option options[] = {
 		OPT_BOOLEAN(0, "cached", &cached,
 			"search in index instead of in the work tree"),
-		{ OPTION_BOOLEAN, 0, "index", &use_index, NULL,
-			"finds in contents not managed by git",
-			PARSE_OPT_NOARG | PARSE_OPT_NEGHELP },
+		OPT_BOOL(0, "no-index", &no_index,
+			 "finds in contents not managed by git"),
 		OPT_BOOLEAN(0, "untracked", &untracked,
 			"search in both tracked and untracked files"),
 		OPT_SET_INT(0, "exclude-standard", &opt_exclude,
@@ -851,7 +850,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
 		break; /* nothing */
 	}
 
-	if (use_index && !startup_info->have_repository)
+	if (!no_index && !startup_info->have_repository)
 		/* die the same way as if we did it at the beginning */
 		setup_git_directory();
 
@@ -963,11 +962,11 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
 	if (!show_in_pager)
 		setup_pager();
 
-	if (!use_index && (untracked || cached))
+	if (no_index && (untracked || cached))
 		die(_("--cached or --untracked cannot be used with --no-index."));
 
-	if (!use_index || untracked) {
-		int use_exclude = (opt_exclude < 0) ? use_index : !!opt_exclude;
+	if (no_index || untracked) {
+		int use_exclude = (opt_exclude < 0) ? !no_index : !!opt_exclude;
 		if (list.nr)
 			die(_("--no-index or --untracked cannot be used with revs."));
 		hit = grep_directory(&opt, &pathspec, use_exclude);
diff --git a/parse-options.c b/parse-options.c
index 8906841..1908996 100644
--- a/parse-options.c
+++ b/parse-options.c
@@ -533,7 +533,7 @@ static int usage_with_options_internal(struct parse_opt_ctx_t *ctx,
 			continue;
 
 		pos = fprintf(outfile, "    ");
-		if (opts->short_name && !(opts->flags & PARSE_OPT_NEGHELP)) {
+		if (opts->short_name) {
 			if (opts->flags & PARSE_OPT_NODASH)
 				pos += fprintf(outfile, "%c", opts->short_name);
 			else
@@ -542,9 +542,7 @@ static int usage_with_options_internal(struct parse_opt_ctx_t *ctx,
 		if (opts->long_name && opts->short_name)
 			pos += fprintf(outfile, ", ");
 		if (opts->long_name)
-			pos += fprintf(outfile, "--%s%s",
-				(opts->flags & PARSE_OPT_NEGHELP) ?  "no-" : "",
-				opts->long_name);
+			pos += fprintf(outfile, "--%s", opts->long_name);
 		if (opts->type == OPTION_NUMBER)
 			pos += fprintf(outfile, "-NUM");
 
diff --git a/parse-options.h b/parse-options.h
index 2e811dc..def9ced 100644
--- a/parse-options.h
+++ b/parse-options.h
@@ -40,7 +40,6 @@ enum parse_opt_option_flags {
 	PARSE_OPT_LASTARG_DEFAULT = 16,
 	PARSE_OPT_NODASH = 32,
 	PARSE_OPT_LITERAL_ARGHELP = 64,
-	PARSE_OPT_NEGHELP = 128,
 	PARSE_OPT_SHELL_EVAL = 256
 };
 
@@ -90,9 +89,6 @@ typedef int parse_opt_ll_cb(struct parse_opt_ctx_t *ctx,
  *   PARSE_OPT_LITERAL_ARGHELP: says that argh shouldn't be enclosed in brackets
  *				(i.e. '<argh>') in the help message.
  *				Useful for options with multiple parameters.
- *   PARSE_OPT_NEGHELP: says that the long option should always be shown with
- *				the --no prefix in the usage message. Sometimes
- *				useful for users of OPTION_NEGBIT.
  *
  * `callback`::
  *   pointer to the callback to use for OPTION_CALLBACK or
-- 
1.7.9.2