Automatically generate ELF metadata for each TDE executable

This is another first for a Linux desktop environment!

modules/TDEMacros.cmake

@@ -3,6 +3,9 @@
 #  (C) 2010-2011 Serghei Amelian
 #  serghei (DOT) amelian (AT) gmail.com
 #
+#  (C) 2011-2012 Timothy Pearson
+#  kb9vqf (AT) pearsoncomputing.net
+#
 #  Improvements and feedback are welcome
 #
 #  This file is released under GPL >= 2
@@ -695,6 +698,15 @@ macro( tde_add_kpart _target )
 endmacro( tde_add_kpart )
 
 
+#################################################
+#####
+##### tde_curdatetime
+macro( tde_curdatetime result )
+  execute_process( COMMAND "date" "+%m/%d/%Y %H:%M:%S" OUTPUT_VARIABLE ${result} )
+  string( REGEX REPLACE "(..)/(..)/(....) (........).*" "\\1/\\2/\\3 \\4" ${result} ${${result}} )
+endmacro( tde_curdatetime )
+
+
 #################################################
 #####
 ##### tde_add_executable
@@ -711,6 +723,21 @@ macro( tde_add_executable _arg_target )
   unset( _dependencies )
   unset( _storage )
 
+  # metadata
+  unset( _description )
+  unset( _license )
+  unset( _copyright )
+  unset( _authors )
+  unset( _product )
+  unset( _organization )
+  unset( _version )
+  unset( _datetime )
+  unset( _notes )
+
+  # default metadata
+  set( _product "Trinity Desktop Environment" )
+  tde_curdatetime( _datetime )
+
   foreach( _arg ${ARGV} )
 
     # this variable help us to skip
@@ -760,6 +787,44 @@ macro( tde_add_executable _arg_target )
       unset( ${_storage} )
     endif( "${_arg}" STREQUAL "DESTINATION" )
 
+    # metadata
+    if( "${_arg}" STREQUAL "DESCRIPTION" )
+      set( _skip_store 1 )
+      set( _storage "_description" )
+    endif( )
+    if( "${_arg}" STREQUAL "LICENSE" )
+      set( _skip_store 1 )
+      set( _storage "_license" )
+    endif( )
+    if( "${_arg}" STREQUAL "COPYRIGHT" )
+      set( _skip_store 1 )
+      set( _storage "_copyright" )
+    endif( )
+    if( "${_arg}" STREQUAL "AUTHORS" )
+      set( _skip_store 1 )
+      set( _storage "_authors" )
+    endif( )
+    if( "${_arg}" STREQUAL "PRODUCT" )
+      set( _skip_store 1 )
+      set( _storage "_product" )
+    endif( )
+    if( "${_arg}" STREQUAL "ORGANIZATION" )
+      set( _skip_store 1 )
+      set( _storage "_organization" )
+    endif( )
+    if( "${_arg}" STREQUAL "VERSION" )
+      set( _skip_store 1 )
+      set( _storage "_version" )
+    endif( )
+    if( "${_arg}" STREQUAL "DATETIME" )
+      set( _skip_store 1 )
+      set( _storage "_datetime" )
+    endif( )
+    if( "${_arg}" STREQUAL "NOTES" )
+      set( _skip_store 1 )
+      set( _storage "_notes" )
+    endif( )
+
     # storing value
     if( _storage AND NOT _skip_store )
       #set( ${_storage} "${${_storage}} ${_arg}" )
@@ -805,6 +870,18 @@ macro( tde_add_executable _arg_target )
     endif( _setuid )
   endif( _destination )
 
+  # embed icon, name, and metadata
+  set( ELF_EMBEDDING_METADATA "\"${_target}\" \"${_description}\" \"${_license}\" \"${_copyright}\" \"${_authors}\" \"${_product}\" \"${_organization}\" \"${_version}\" \"${_datetime}\" \"${_notes}\"" )
+  separate_arguments( ELF_EMBEDDING_METADATA )
+  add_custom_command(
+    TARGET ${_target}
+    POST_BUILD
+    COMMAND ./tdelfeditor -m ${CMAKE_CURRENT_BINARY_DIR}/${_target} ${ELF_EMBEDDING_METADATA} || true
+    COMMAND ./tdelfeditor -e ${CMAKE_CURRENT_BINARY_DIR}/${_target} || true
+    COMMAND ./tdelfeditor -t ${CMAKE_CURRENT_BINARY_DIR}/${_target} ${_target} || true
+    WORKING_DIRECTORY ${CMAKE_INSTALL_PREFIX}/bin
+  )
+
 endmacro( tde_add_executable )