[PATCH v2] kconfig: Extend kconfig with setall option

[Jukka Kaartinen <jukka.kaartinen@xxxxxxxxxx>]

setall will set all possible dependencies automatically to
value "y".

Signed-off-by: Jukka Kaartinen <jukka.kaartinen@xxxxxxxxxx>
---
 scripts/kconfig/kconfig | 77 +++++++++++++++++++++++++++++++++--------
 scripts/kconfig/lconf.c | 16 +++++++++
 2 files changed, 79 insertions(+), 14 deletions(-)

diff --git a/scripts/kconfig/kconfig b/scripts/kconfig/kconfig
index 2762c8dc04a8..7dd7bca2e0e8 100755
--- a/scripts/kconfig/kconfig
+++ b/scripts/kconfig/kconfig
@@ -1,34 +1,83 @@
-#!/bin/sh
+#!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 
 usage() {
-	echo "kconfig [search|set] string"
+	echo "kconfig [search|set|setall|val|out] string"
+	echo "      search         Search config option"
+	echo "      set            Config option"
+	echo "      setall         Set all possible dependencies to 'y'"
+	echo "      val            Value for config option"
+	echo "      out            Directory for O=<out>"
+	echo ""
+	echo " example:"
+	echo "   $0 set I2C val y"
 	exit 1;
 }
 
-if [ "$1" = "" ] ; then
-	usage
-fi
+search=""
+search_val=""
+config=""
+config_val=""
+output=""
+setting=""
+
+while [[ $# -gt 0 ]]
+do
+	key="$1"
+	case $key in
+		search)
+			search=1
+			search_val="$2"
+			shift # past argument
+			shift # past value
+			;;
+		set)
+			config=1
+			config_val="$2"
+			shift # past argument
+			shift # past value
+			;;
+		setall)
+			all="y"
+			shift # past argument
+			;;
+		val)
+			setting="$2"
+			shift # past argument
+			shift # past value
+			;;
+		out)
+			output="O=$2"
+			shift # past argument
+			shift # past value
+			;;
+		*)    # unknown option
+			echo "Unknown option: $1"
+			usage
+			exit 1
+			;;
+	esac
+done
 
-if [ "$1" = "search" ] ; then
+if [ "$search" != "" ] ; then
 
-	search=$2
-	NCONFIG_MODE=kconfig_search SEARCH=${search} make lconfig
+	if [ $search_val = "" ] ; then
+		echo "nothing to search"
+		exit 1
+	fi
 
-elif [ "$1" = "set" ] ; then
+	NCONFIG_MODE=kconfig_search SEARCH=${search_val} make lconfig ${output}
 
-	config=$2
-	setting=$3
+elif [ "$config" != "" ] ; then
 
-	if [ $config = "" ] ; then
+	if [ $config_val = "" ] ; then
 		echo "nothing to set"
 		exit 1
 	fi
 
-	NCONFIG_MODE=kconfig_set CONFIG=${config} SETTING=${setting} make lconfig
+	ALLYES=${all} NCONFIG_MODE=kconfig_set CONFIG=${config_val} SETTING=${setting} make lconfig ${output}
 
 else
 	usage
 fi
 
-
diff --git a/scripts/kconfig/lconf.c b/scripts/kconfig/lconf.c
index cde717f36eb1..b8634f8f662d 100644
--- a/scripts/kconfig/lconf.c
+++ b/scripts/kconfig/lconf.c
@@ -14,6 +14,7 @@
 
 static int indent;
 static char line[128];
+static char *ask_from_user;
 
 static int get_depends(struct symbol *sym);
 
@@ -57,6 +58,12 @@ static int conf_askvalue(struct symbol *sym, const char *def)
 		return 0;
 	}
 
+	if (ask_from_user) {
+		line[0] = 'y';
+		line[1] = '\0';
+		return 0;
+	}
+
 	fflush(stdout);
 	xfgets(line, 128, stdin);
 
@@ -232,8 +239,17 @@ static void kconfig_set(void)
 	struct symbol *sym;
 	char *config;
 	char *setting;
+	char *allyes;
 	int res;
 
+	allyes = getenv("ALLYES");
+	if (allyes) {
+		if (strncmp(allyes, "y", 1) == 0) {
+			ask_from_user = "y";
+			printf("Set all dependencies to yes.\n");
+		}
+	}
+
 	config = getenv("CONFIG");
 	if (!config)
 		return;
-- 
2.17.1