cmake: add link to ringtone folder

This allows to package ringtones when daemon is installed in another
prefix

Change-Id: I4a49957f81e4bebf80c8a657ebf958d661a53fd4
Tuleap: #652

CMakeLists.txt

@@ -243,13 +243,23 @@ SET_SOURCE_FILES_PROPERTIES(${ring_ICONS} PROPERTIES
 SET_SOURCE_FILES_PROPERTIES(Credits.rtf PROPERTIES
        MACOSX_PACKAGE_LOCATION Resources)
 
-# package all ringtones in share/ring/ringtones/
-FILE(GLOB RINGTONE_LIST ${CMAKE_INSTALL_PREFIX}/share/ring/ringtones/*)
-
-FOREACH(RINGTONE ${RINGTONE_LIST})
-    GET_FILENAME_COMPONENT(FILE_PATH ${RINGTONE} ABSOLUTE)
-    SET(ring_RINGTONES ${ring_RINGTONES} ${FILE_PATH})
-ENDFOREACH()
+# package ringtones
+IF(NOT IS_DIRECTORY ${RINGTONE_DIR})
+    MESSAGE("No ringtone folder provided, use RINGTONE_DIR to specify one")
+    SET(RINGTONE_DIR ${CMAKE_INSTALL_PREFIX}/share/ring/ringtones)
+    MESSAGE("Trying ${RINGTONE_DIR}")
+ENDIF()
+
+IF(IS_DIRECTORY ${RINGTONE_DIR})
+    FILE(GLOB RINGTONE_LIST ${RINGTONE_DIR}/*)
+    FOREACH(RINGTONE ${RINGTONE_LIST})
+        MESSAGE("Adding ringtone ${RINGTONE}")
+        GET_FILENAME_COMPONENT(FILE_PATH ${RINGTONE} ABSOLUTE)
+        SET(ring_RINGTONES ${ring_RINGTONES} ${FILE_PATH})
+    ENDFOREACH()
+ELSE()
+    MESSAGE("${RINGTONE_DIR} does not exist or is not readable")
+ENDIF()
 
 SET_SOURCE_FILES_PROPERTIES(${ring_RINGTONES}
                 PROPERTIES MACOSX_PACKAGE_LOCATION Resources/ringtones)

README.md

@@ -61,6 +61,9 @@ Notes:
 By default the client version is specified in CMakeLists.txt but it can be
 overriden by specifying -DRING_VERSION=<num> in the cmake command line.
 
+You can specify a custom ringtone folder containing audio files (only)
+with -DRINGTONE_DIR option
+
 Debugging
 ==================