From 1a6d8a8f06639177e3c4bb2837664c2911793f87 Mon Sep 17 00:00:00 2001
From: MilhouseVH <milhouseVH.github@nmacleod.com>
Date: Thu, 22 Feb 2018 11:49:49 +0000
Subject: [PATCH] buildsystem: save/load build config

---
 config/functions | 16 ++++++++++++++++
 scripts/image    |  2 ++
 2 files changed, 18 insertions(+)

diff --git a/config/functions b/config/functions
index d525e7e17e..e5b9ec9822 100644
--- a/config/functions
+++ b/config/functions
@@ -765,6 +765,22 @@ check_path() {
   fi
 }
 
+load_build_config() {
+  if [ -d "${1}" -a -f ${1}/.build.conf ]; then
+    source ${1}/.build.conf
+    return 0
+  fi
+  return 1
+}
+
+save_build_config() {
+  local var
+  rm -f ${BUILD}/.build.conf
+  for var in PROJECT DEVICE ARCH DEBUG BUILD_SUFFIX; do
+    echo "export ${var}=\"${!var}\"" >> ${BUILD}/.build.conf
+  done
+}
+
 check_config() {
   dashes="==========================="
   if [ ! -d $PROJECT_DIR/$PROJECT ]; then
diff --git a/scripts/image b/scripts/image
index d56b8258a7..61371b6c18 100755
--- a/scripts/image
+++ b/scripts/image
@@ -25,6 +25,8 @@ unset _CACHE_PACKAGE_LOCAL _CACHE_PACKAGE_GLOBAL _DEBUG_DEPENDS_LIST _DEBUG_PACK
 . config/show_config
 show_config
 
+save_build_config
+
 setup_toolchain target
 
 $SCRIPTS/checkdeps