From 17ced7d38a9f1fcefc723420038470b4382f6dad Mon Sep 17 00:00:00 2001
From: Trygve Laugstøl <trygvis@inamo.no>
Date: Mon, 12 Sep 2016 00:13:59 +0200
Subject: o Working version back to listing everything in the cmake file but
 some help from the cmake libs.

---
 mcu_include_directories_from_sources.cmake | 47 ++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 mcu_include_directories_from_sources.cmake

(limited to 'mcu_include_directories_from_sources.cmake')

diff --git a/mcu_include_directories_from_sources.cmake b/mcu_include_directories_from_sources.cmake
new file mode 100644
index 0000000..792b239
--- /dev/null
+++ b/mcu_include_directories_from_sources.cmake
@@ -0,0 +1,47 @@
+function(mcu_include_directories_from_sources)
+    set(options)
+    set(oneValueArgs SOURCES_VAR HEADERS_VAR INCLUDES_VAR)
+    set(multiValueArgs SOURCE_DIR EXCLUDE)
+    cmake_parse_arguments(ARGS "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
+
+    set(ALL_SOURCES)
+    set(ALL_HEADERS)
+    set(ALL_INCLUDES)
+
+    foreach (DIR IN LISTS ARGS_SOURCE_DIR)
+        file(GLOB_RECURSE SOURCES ${DIR}/*.c)
+
+        foreach (E IN LISTS ARGS_EXCLUDE)
+            list(FILTER SOURCES EXCLUDE REGEX ${E})
+        endforeach ()
+        list(APPEND ALL_SOURCES ${SOURCES})
+
+        file(GLOB_RECURSE HEADERS LIST_DIRECTORIES TRUE ${DIR}/*.h)
+        list(APPEND ALL_HEADERS ${HEADERS})
+
+        # Add all directories that contain header files as private include directories
+        foreach (H IN LISTS HEADERS)
+            get_filename_component(D ${H} DIRECTORY)
+            list(APPEND INCLUDES ${D})
+        endforeach ()
+        list(APPEND ALL_INCLUDES ${INCLUDES})
+    endforeach ()
+
+    if (ARGS_SOURCES_VAR AND ALL_SOURCES)
+        list(SORT ALL_SOURCES)
+        list(REMOVE_DUPLICATES ALL_SOURCES)
+        set(${ARGS_SOURCES_VAR} ${ALL_SOURCES} PARENT_SCOPE)
+    endif ()
+
+    if (ARGS_HEADERS_VAR AND ALL_HEADERS)
+        list(SORT ALL_HEADERS)
+        list(REMOVE_DUPLICATES ALL_HEADERS)
+        set(${ARGS_HEADERS_VAR} ${ALL_HEADERS} PARENT_SCOPE)
+    endif ()
+
+    if (ARGS_INCLUDES_VAR AND ALL_INCLUDES)
+        list(SORT ALL_INCLUDES)
+        list(REMOVE_DUPLICATES ALL_INCLUDES)
+        set(${ARGS_INCLUDES_VAR} ${ALL_INCLUDES} PARENT_SCOPE)
+    endif ()
+endfunction()
-- 
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