Work on zephyr support

builder/frameworks/zephyr.py

@@ -0,0 +1,30 @@
+# Copyright 2019-present PlatformIO <contact@platformio.org>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+The Zephyr Project is a scalable real-time operating system (RTOS) supporting multiple
+hardware architectures, optimized for resource constrained devices, and built with
+safety and security in mind.
+
+https://github.com/zephyrproject-rtos/zephyr
+"""
+
+from os.path import join
+
+from SCons.Script import Import, SConscript
+
+Import("env")
+
+SConscript(
+    join(env.PioPlatform().get_package_dir("framework-zephyr"), "scripts",
+         "platformio", "platformio-build.py"), exports="env") 

builder/main.py

@@ -213,6 +213,14 @@ env.Append(
 # Target: Build executable and linkable firmware
 #
 
+frameworks = env.get("PIOFRAMEWORK", [])
+if "zephyr" in frameworks:
+    env.SConscript(
+        join(platform.get_package_dir(
+            "framework-zephyr"), "scripts", "platformio", "platformio-build-pre.py"),
+        exports={"env": env}
+    )
+
 target_elf = None
 if "nobuild" in COMMAND_LINE_TARGETS:
     target_elf = join("$BUILD_DIR", "${PROGNAME}.elf")