Remove lua. It was never made fully functional and if we ever wanted

to do something like that (which I don't really think is such a hot
idea) we should rather build tooling based on our JSON outputs or at
the least use a language that people like better.

.gitignore

@@ -50,7 +50,6 @@ compile_commands.json
 /emake.data.bak
 /emake.data
 /.emake/sched/Linux/emake.sched
-/src/lua-prefix
 /CTestTestfile.cmake
 /DartConfiguration.tcl
 /Testing

.gitmodules

@@ -2,11 +2,3 @@
         path = src/rct
         url = https://github.com/Andersbakken/rct
         branch = master
-[submodule "src/selene"]
-	path = src/selene
-	url = https://github.com/jeremyong/Selene.git
-    branch = master
-[submodule "src/lua"]
-	path = src/lua
-	url = https://github.com/LuaDist/lua.git
-    branch = master

configure

@@ -21,8 +21,6 @@ function usage ()
     echo "  --clang-libdir [arg]            Sets the libdir RTags will use for clang."
     echo "  --cotire                        Enable cotire when building RTags"
     echo "  --emacs                         Use arg instead of \"emacs\" when byte-compiling elisp"
-    echo "  --lua-enabled                   Enable LUA AST scripting"
-    echo "  --no-lua-files-install          Don't install RTags lua files"
     echo "  --no-elisp-files-install        Don't install RTags elisp files"
     echo "  --no-elisp-bytecompile          Don't bytecompile RTags elisp files"
     echo "  --elisp-install-location [arg]  Install elisp files to this location"
@@ -77,9 +75,6 @@ while [ -n "$1" ]; do
             shift
             CMAKE_ARGS="${CMAKE_ARGS} -DCMAKE_INSTALL_PREFIX=\"$1\""
             ;;
-        --lua-enabled)
-            CMAKE_ARGS="${CMAKE_ARGS} -DLUA_ENABLED=1"
-            ;;
         --clang-libraries)
             shift
             CMAKE_ARGS="${CMAKE_ARGS} -DLIBCLANG_LIBRARIES=\"$1\""
@@ -99,9 +94,6 @@ while [ -n "$1" ]; do
             shift
             CMAKE_ARGS="${CMAKE_ARGS} -DEMACS=\"$1\""
             ;;
-        --no-lua-files-install)
-            CMAKE_ARGS="${CMAKE_ARGS} -DRTAGS_NO_LUA_FILES=1"
-            ;;
         --no-elisp-files-install)
             CMAKE_ARGS="${CMAKE_ARGS} -DRTAGS_NO_ELISP_FILES=1"
             ;;

scripts/travis.sh

@@ -22,9 +22,6 @@
 #
 # Description: The following variables can be changed from the build matrix:
 #  - ASAN        (default value is "1")
-#  - LUA_VERSION (default value is "5.3.2")
-#  - LUA_DISABLE (default value is "", set it to anything to disable lua
-#                 extension for that matrix)
 declare -a CMAKE_PARAMS=("-DCMAKE_CXX_COMPILER=$CXX$COMPILER_VERSION"
                          "-DCMAKE_C_COMPILER=$CC$COMPILER_VERSION"
                          "-DBUILD_TESTING=1")
@@ -33,14 +30,6 @@ if [ "$ASAN" ]; then
     CMAKE_PARAMS+=("-DASAN=address,undefined")
 fi
 
-LUA_DISABLE=${LUA_DISABLE:-""}
-if [ ! $LUA_DISABLE ]; then
-    CMAKE_PARAMS+=("-DLUA_ENABLED=1")
-    echo "Running build with Lua extension."
-else
-    echo "Running build without Lua extension."
-fi # end ! $LUA_DISABLE
-
 export CCACHE_DEBUG=1
 function build_and_test()
 {