Better OS detection.

Only take ID_LIKE field if it exists else ID. Doing some
stripping also to get a cleaner output variable

Change-Id: If5c44bf21c3435bd4739cfd34190a81d28dd10d3
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

diff --git a/cmake/cmake.d/02-variables.cmake b/cmake/cmake.d/02-variables.cmake
index ec6510f..285648f 100644 (file)
--- a/cmake/cmake.d/02-variables.cmake
+++ b/cmake/cmake.d/02-variables.cmake
@@ -51,19 +51,20 @@ set(NPKG_PROJECT_NAME agl-${PROJECT_NAME})
 # Get the os type
 # Used to package .deb
 if(EXISTS "/etc/os-release")
-       execute_process(COMMAND grep -E "^ID(=|_LIKE=)" /etc/os-release
+       execute_process(COMMAND bash "-c" "grep -E '^ID(_LIKE)?=' /etc/os-release | tail -n 1"
                OUTPUT_VARIABLE TMP_OSRELEASE
        )
 
        if (NOT TMP_OSRELEASE STREQUAL "")
-               string(REGEX REPLACE ".*=([0-9a-z._-]*)\n" "\\1" OSRELEASE ${TMP_OSRELEASE})
+               string(REGEX REPLACE ".*=\"?([0-9a-z\._-]*)\"?\n" "\\1" OSRELEASE ${TMP_OSRELEASE})
        else()
-               set(OSRELEASE "NO COMPATIBLE !")
+               set(OSRELEASE "NOT COMPATIBLE !")
        endif()
-       message(STATUS "Distribution used ${OSRELEASE}")
+
 else()
-       set(OSRELEASE "NO COMPATIBLE !")
+       set(OSRELEASE "NOT COMPATIBLE ! Missing /etc/os-release file.")
 endif()
+message(STATUS "Distribution used ${OSRELEASE}")
 
 if(DEFINED ENV{SDKTARGETSYSROOT})
        file(STRINGS $ENV{SDKTARGETSYSROOT}/usr/include/linux/version.h LINUX_VERSION_CODE_LINE REGEX "LINUX_VERSION_CODE")