From fc2503615ff8be8b9d35e7c512243d62df6a026b Mon Sep 17 00:00:00 2001
From: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
Date: Thu, 8 Oct 2020 15:52:32 +0200
Subject: [PATCH] version: creating ncs_version.h with input from VERSION.

This commit generates a ncs_version.h which can be included in source
code.
version.h is generated from version.h.in with data from VERSION.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
---
 CMakeLists.txt                          |  1 +
 CODEOWNERS                              |  1 +
 cmake/version.cmake                     |  6 ++++++
 ncs_version.h.in                        | 13 +++++++++++++
 share/ncs-package/cmake/NcsConfig.cmake |  6 ++++++
 5 files changed, 27 insertions(+)
 create mode 100644 cmake/version.cmake
 create mode 100644 ncs_version.h.in

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 19ae5bcbb825..27e1756d1196 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,6 +8,7 @@
 set(NRF_DIR ${CMAKE_CURRENT_LIST_DIR} CACHE PATH "NCS root directory")
 
 include(cmake/extensions.cmake)
+include(cmake/version.cmake)
 include(cmake/multi_image.cmake)
 include(cmake/reports.cmake)
 
diff --git a/CODEOWNERS b/CODEOWNERS
index 94514d993f06..caaeaabac0a8 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -6,6 +6,7 @@
 
 # Root folder
 /VERSION                                  @carlescufi @tejlmand
+/ncs_version.h.in                         @carlescufi @tejlmand
 /CODEOWNERS                               @carlescufi
 /LICENSE                                  @carlescufi
 /README.rst                               @carlescufi
diff --git a/cmake/version.cmake b/cmake/version.cmake
new file mode 100644
index 000000000000..5a802b4050bc
--- /dev/null
+++ b/cmake/version.cmake
@@ -0,0 +1,6 @@
+math(EXPR NCS_VERSION_CODE "(${NCS_VERSION_MAJOR} << 16) + (${NCS_VERSION_MINOR} << 8)  + (${NCS_VERSION_PATCH})")
+
+# to_hex is made available by ${ZEPHYR_BASE}/cmake/hex.cmake
+to_hex(${NCS_VERSION_CODE} NCS_VERSION_NUMBER)
+
+configure_file(${NRF_DIR}/ncs_version.h.in ${ZEPHYR_BINARY_DIR}/include/generated/ncs_version.h)
diff --git a/ncs_version.h.in b/ncs_version.h.in
new file mode 100644
index 000000000000..19ef2143446b
--- /dev/null
+++ b/ncs_version.h.in
@@ -0,0 +1,13 @@
+#ifndef _NCS_VERSION_H_
+#define _NCS_VERSION_H_
+
+#cmakedefine NCS_VERSION_CODE @NCS_VERSION_CODE@
+#define NCS_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
+
+#define NCS_VERSION_NUMBER  @NCS_VERSION_NUMBER@
+#define NCS_VERSION_MAJOR   @NCS_VERSION_MAJOR@
+#define NCS_VERSION_MINOR   @NCS_VERSION_MINOR@
+#define NCS_PATCHLEVEL      @NCS_VERSION_PATCH@
+#define NCS_VERSION_STRING  "@NCS_VERSION@"
+
+#endif /* _NCS_VERSION_H_ */
diff --git a/share/ncs-package/cmake/NcsConfig.cmake b/share/ncs-package/cmake/NcsConfig.cmake
index ed46526a386e..d4cd9e3b719f 100644
--- a/share/ncs-package/cmake/NcsConfig.cmake
+++ b/share/ncs-package/cmake/NcsConfig.cmake
@@ -10,6 +10,12 @@ get_filename_component(NRF_DIR ${CMAKE_CURRENT_LIST_DIR}/${NRF_RELATIVE_DIR} ABS
 get_filename_component(NCS_DIR ${CMAKE_CURRENT_LIST_DIR}/${NCS_RELATIVE_DIR} ABSOLUTE)
 
 file(STRINGS ${NRF_DIR}/VERSION NCS_VERSION LIMIT_COUNT 1 LENGTH_MINIMUM 5)
+string(REGEX MATCH "([^\.]*)\.([^\.]*)\.([^-]*)[-]?(.*)" OUT_VAR ${NCS_VERSION})
+
+set(NCS_VERSION_MAJOR ${CMAKE_MATCH_1})
+set(NCS_VERSION_MINOR ${CMAKE_MATCH_2})
+set(NCS_VERSION_PATCH ${CMAKE_MATCH_3})
+set(NCS_VERSION_EXTRA ${CMAKE_MATCH_4})
 
 if(NOT NO_BOILERPLATE)
   if(NCS_TOOLCHAIN_VERSION)