Update TDEL10n module

+ Added ability to extract strings from documentation.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 99d63e8212)

modules/TDEL10n.cmake

@@ -73,6 +73,25 @@ if( NOT DEFINED MSGCAT_EXECUTABLE )
   endif( )
 endif( )
 
+if( NOT DEFINED PO4A_GETTEXTIZE_EXECUTABLE )
+  find_program( PO4A_GETTEXTIZE_EXECUTABLE
+    NAMES po4a-gettextize
+    HINTS "${TDE_PREFIX}/bin"
+  )
+  if( NOT PO4A_GETTEXTIZE_EXECUTABLE )
+    tde_message_fatal( "po4a-gettextize is required but not found" )
+  endif( )
+  execute_process(
+    COMMAND ${PO4A_GETTEXTIZE_EXECUTABLE} --version
+    OUTPUT_VARIABLE _po4a_version
+    ERROR_VARIABLE _po4a_version
+  )
+  string( REGEX REPLACE "^po4a-gettextize[^\n]* ([^ ]*)\n.*" "\\1" _po4a_version ${_po4a_version} )
+  if( "${_po4a_version}" VERSION_LESS "0.45" )
+    tde_message_fatal( "po4a version >= 0.45 is required but found only ${_po4_version}" )
+  endif( )
+endif( )
+
 
 #################################################
 #####
@@ -307,16 +326,6 @@ macro( tde_l10n_create_template )
 
   endforeach( )
 
-  # add common translator info
-  if( _files )
-    set( _translatorinfo
-      "i18n(\"NAME OF TRANSLATORS\", \"Your names\")\n"
-      "i18n(\"EMAIL OF TRANSLATORS\", \"Your emails\")\n"
-    )
-    file( WRITE ${CMAKE_CURRENT_SOURCE_DIR}/_translatorinfo.tde_l10n ${_translatorinfo} )
-    list( INSERT _files 0 "_translatorinfo.tde_l10n" )
-  endif( )
-
   # filter files by excludes
   if( _excludes )
     foreach( _src ${_files} )
@@ -427,6 +436,34 @@ macro( tde_l10n_create_template )
     endif( )
   endforeach( )
 
+  # prepare documentation
+  foreach( _src ${_files} )
+    if( ${_src} MATCHES "\\.(ad|adoc|docbook|[1-8])(\\.cmake)?$" )
+      if( ${_src} MATCHES "\\.(ad|adoc)(\\.cmake)?$" )
+        set( _doc_format "asciidoc" )
+      elseif( ${_src} MATCHES "\\.(docbook)(\\.cmake)?$"  )
+        set( _doc_format "docbook" )
+      elseif( ${_src} MATCHES "\\.([1-8])(\\.cmake)?$"  )
+        set( _doc_format "man" )
+      else( )
+        set( _doc_format "text" )
+      endif( )
+      execute_process(
+        COMMAND ${PO4A_GETTEXTIZE_EXECUTABLE}
+          -f ${_doc_format} -m ${_src}
+        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+        OUTPUT_VARIABLE _potDoc
+      )
+      if( _potDoc )
+        string( REPLACE "Content-Type: text/plain; charset=CHARSET" "Content-Type: text/plain; charset=UTF-8" _potDoc "${_potDoc}" )
+        string( REPLACE "Content-Transfer-Encoding: ENCODING" "Content-Transfer-Encoding: 8bit" _potDoc "${_potDoc}" )
+        file( WRITE ${CMAKE_CURRENT_SOURCE_DIR}/${_src}.tde_l10n "${_potDoc}" )
+        list( APPEND _pots ${_src}.tde_l10n )
+      endif( )
+      list( REMOVE_ITEM _files ${_src} )
+    endif( )
+  endforeach( )
+
   # pick desktop files *.desktop and *.protocol
   foreach( _src ${_files} )
     if( ${_src} MATCHES "\\.(desktop|protocol)(\\.cmake)?$" )
@@ -443,6 +480,19 @@ macro( tde_l10n_create_template )
     endif( )
   endforeach( )
 
+  # add common translator info
+  if( _files )
+    list( FIND _excludes "_translatorinfo" _translatorinfo_index )
+    if( "${_translatorinfo_index}" LESS 0 )
+      set( _translatorinfo
+        "i18n(\"NAME OF TRANSLATORS\", \"Your names\")\n"
+        "i18n(\"EMAIL OF TRANSLATORS\", \"Your emails\")\n"
+      )
+      file( WRITE ${CMAKE_CURRENT_SOURCE_DIR}/_translatorinfo.tde_l10n ${_translatorinfo} )
+      list( INSERT _files 0 "_translatorinfo.tde_l10n" )
+    endif( )
+  endif( )
+
   # create translation template
   if( _files )
     execute_process(
@@ -556,7 +606,7 @@ macro( tde_l10n_create_template )
   endif( _pot )
 
   # cleanup
-  foreach( _file ${_files} ${_desktops} )
+  foreach( _file ${_files} ${_desktops} ${_pots} )
     if( "${_file}" MATCHES "\\.tde_l10n[0-9]*$" )
       file( REMOVE ${CMAKE_CURRENT_SOURCE_DIR}/${_file} )
     endif( )