From e96dcd6d096cc51414b156ab7aa746da27074c53 Mon Sep 17 00:00:00 2001
From: Leo C <erbl259-lmu@yahoo.de>
Date: Sun, 29 Jul 2018 11:33:05 +0200
Subject: [PATCH] Remove cruft

---
 avr/command.c | 58 ++++++++++++++++++---------------------------------
 1 file changed, 20 insertions(+), 38 deletions(-)

diff --git a/avr/command.c b/avr/command.c
index 085dfdc..b11297b 100644
--- a/avr/command.c
+++ b/avr/command.c
@@ -31,17 +31,15 @@
 jmp_buf cmd_jbuf;
 
 
-static void print_usage_line(const FLASH char *name, int width,
-				const FLASH char *usage)
+static void print_usage_line(cmd_tbl_t *p, int width)
 {
-	width -= strlen_P(name);
+	width -= strlen_P(p->name);
 	if (width < 0)
 		width = 0;
-	my_puts_P(name);
+	my_puts_P(p->name);
 	print_blanks(width);
 	my_puts_P(PSTR(" - "));
-	my_puts_P(usage);
-	my_puts_P(PSTR("\n"));
+	puts_P(p->usage);
 }
 
 int strcmp_PP(const FLASH char *s1, const FLASH char *s2)
@@ -148,6 +146,7 @@ cmd_tbl_t *find_cmd (const char *cmd, cmd_tbl_t *table)
 command_ret_t do_help(cmd_tbl_t *cmdtp, uint_fast8_t flag UNUSED, int argc, char * const argv[])
 {
 	cmd_tbl_t *tbl_start = get_cmd_tbl_base(cmdtp);
+	command_ret_t rc = CMD_RET_SUCCESS;
 
 	char *optenv = getenv_str(PSTR("cmd"));
 	bool opt_debug = optenv && strstr_P(optenv, PSTR("debug")) != NULL;
@@ -186,26 +185,21 @@ command_ret_t do_help(cmd_tbl_t *cmdtp, uint_fast8_t flag UNUSED, int argc, char
 
 		/* print short help (usage) */
 		for (int i = 0; i < cmd_items; i++) {
-			if (opt_debug || !(cmd_list[i]->flags & CTBL_DBG)) {
-				const FLASH char *usage = cmd_list[i]->usage;
+			if ((cmd_list[i]->flags & CTBL_DBG) && !opt_debug)
+				continue;
+			if (cmd_list[i]->usage == NULL)
+				continue;
 
-				/* allow user abort */
-				if (ctrlc ()) {
-					free(cmd_list);
-					return CMD_RET_FAILURE;
-				}
-				if (usage == NULL)
-					continue;
-#if defined(GCC_BUG_61443) || 1
-				print_usage_line(cmd_list[i]->name, maxlen_cmd, usage);
-#else
-				printf_P(PSTR("%-" stringify(8) /*FIXME*/ "S - %S\n"),
-						cmd_list[i]->name, usage);
-#endif
+			print_usage_line(cmd_list[i], maxlen_cmd);
+
+			/* allow user abort */
+			if (ctrlc ()) {
+				rc = CMD_RET_FAILURE;
+				break;
 			}
 		}
 		free(cmd_list);
-		return CMD_RET_SUCCESS;
+		return rc;
 	}
 
 	/*
@@ -228,28 +222,16 @@ command_ret_t do_help(cmd_tbl_t *cmdtp, uint_fast8_t flag UNUSED, int argc, char
 
 command_ret_t cmd_usage(cmd_tbl_t *cmdtp)
 {
-//	printf("%s - %s\n\n", cmdtp->name, cmdtp->usage);
-	print_usage_line(cmdtp->name, 0, cmdtp->usage);
-#if 0
-	my_puts_P(cmdtp->name);
-	print_blanks(/*FIXME*/ 8 - strlen_P(cmdtp->name));
-	my_puts_P(PSTR(" - "));
-	my_puts_P(cmdtp->usage);
-	my_puts_P(PSTR("\n\n"));
-#endif
+	print_usage_line(cmdtp, 0);
 #ifdef	CONFIG_SYS_LONGHELP
-//	printf("Usage:\n%s ", cmdtp->name);
 	my_puts_P(PSTR("Usage:\n"));
 	my_puts_P(cmdtp->name);
 	my_puts_P(PSTR(" "));
 
-	if (!cmdtp->help) {
+	if (cmdtp->help && *cmdtp->help != '\0')
+		puts_P(cmdtp->help);
+	else
 		my_puts_P(PSTR(" - No additional help available.\n"));
-		return CMD_RET_FAILURE;
-	}
-
-	my_puts_P(cmdtp->help);
-	my_puts_P(PSTR("\n"));
 #endif	/* CONFIG_SYS_LONGHELP */
 	return CMD_RET_FAILURE;
 }
-- 
2.39.2