setup-environment: automate adding of available multiconfigs to local.conf

If MULTICONFIG=true parameter is passed to setup-environment script, it
will enable multiconfig in local.conf if multiconfigs configurations were
found in layers.

Signed-off-by: Mikhail Vanyulin <mikhail.vanyulin@rtsoft.de>

setup-environment

@@ -45,6 +45,13 @@ DEFAULT_DISTRO="$(echo "$GF_DISTROS" | head -n 1)"
 GF_IMAGES="$(find sources/meta-seconorth-distro/recipes-bsp/images/ -iname "*.bb" \
                 -exec basename -s ".bb" {} \;)"
 
+SUPPORTED_MULTICONFIGS="$(find sources/*/conf/multiconfig -name "*.conf" \
+                        -exec basename -s ".conf" {} \; 2>/dev/null || true )"
+SUPPORTED_MULTICONFIGS_SINGLE_LINE=${SUPPORTED_MULTICONFIGS//$'\n'/ }
+if [ -z "$SUPPORTED_MULTICONFIGS_SINGLE_LINE" ]; then
+    MULTICONFIG="false"
+fi
+
 DL_DIR_GLOBAL="/usr/src/packages/"
 SSTATE_DIR="/var/cache/yocto/sstate_cache"
 SSTATE_MIRROR="/var/cache/yocto/sstate_cache"
@@ -58,12 +65,13 @@ message()
 usage()
 {
     echo  "
-Usage: MACHINE=<machine> DISTRO=<distro> {BBLAYERS=<bblayers>} source $PROGNAME <build-dir>
-Usage:                                                         source $PROGNAME <build-dir>
+Usage: MACHINE=<machine> DISTRO=<distro> {BBLAYERS=<bblayers>} {MULTICONFIG=true} source $PROGNAME <build-dir>
+Usage:                                                                            source $PROGNAME <build-dir>
     <machine>    machine name
     <distro>     distro name
     <bblayers>   file with layer list (optional)
     <build-dir>  build directory
+    MULTICONFIG  set to true, to enable multiconfig configuration
 
 The first usage is for creating a new build directory. In this case, the
 script creates the build directory <build-dir>, configures it for the
@@ -83,6 +91,9 @@ directory <build-dir>. The build directory configuration is unchanged.
         echo
         echo "Available Poky distros:"
         echo "$POKY_DISTROS" | xargs -I% echo -e "\t%"
+        echo
+        echo "Available multiconfigs:"
+        echo "$SUPPORTED_MULTICONFIGS" | xargs -I% echo -e "\t%"
 
 echo "
 Examples:
@@ -90,6 +101,9 @@ Examples:
 - To create a new Yocto build directory:
   $ MACHINE=$DEFAULT_MACHINE DISTRO=$DEFAULT_DISTRO source $PROGNAME build
 
+- To create a new Yocto build directory with multiconfig configuration:
+  $ MACHINE=$DEFAULT_MACHINE DISTRO=$DEFAULT_DISTRO MULTICONFIG=true source $PROGNAME build
+
 - To use an existing Yocto build directory:
   $ source $PROGNAME build
 "
@@ -100,7 +114,7 @@ clean_up()
    unset EULA
    unset CWD TEMPLATES SHORTOPTS LONGOPTS ARGS PROGNAME
    unset generated_config updated
-   unset MACHINE SDKMACHINE DISTRO OEROOT
+   unset MACHINE SDKMACHINE DISTRO OEROOT MULTICONFIG
    unset BBLAYERS
 }
 
@@ -241,7 +255,8 @@ if "$build_dir_setup_enabled"; then
       echo "Bitbake will fall back to the poky default bblayers.conf"
     fi
 
-    if [ -z "${DISTRO/*fngsystem*}" ] || [ -z "${DISTRO/*no-gplv3*}" ]; then
+    if [ -z "${DISTRO/*fngsystem*}" ] || [ -z "${DISTRO/*no-gplv3*}" ] \
+       || [ "$MULTICONFIG" = "true" ]; then
         # Some custom projects already include the NoGPLv3 or GPLv2 layer.
         # If these layers are already present, the Bitbake parsing fails.
         # As a precaution, check if the layers are already present and
@@ -323,6 +338,11 @@ if "$build_dir_setup_enabled"; then
         echo "    http://.*/.* https://support.garz-fricke.com/mirror/ \\ "
         echo "    https://.*/.* https://support.garz-fricke.com/mirror/ \\ "
         echo "\""
+        if [ "$MULTICONFIG" = "true" ]; then
+            echo
+            echo "BBMULTICONFIG = \"$SUPPORTED_MULTICONFIGS_SINGLE_LINE\""
+        fi
+
     } > conf/local.conf
 
     # Change settings according environment
@@ -331,7 +351,7 @@ if "$build_dir_setup_enabled"; then
         -e "s,DISTRO ?=.*,DISTRO ?= '$DISTRO',g" \
         -e "s,PACKAGE_CLASSES ?=.*,PACKAGE_CLASSES ?= '$PACKAGE_CLASSES',g" \
         -i conf/local.conf
-    
+
     # MediTek Genio 700 specific settings
     if [ "$MACHINE" = "seco-genio700" ]; then
         {