Cleanup the SDKs a bit removing unnecessary files

This also removes the symlinked directories which will help with the
Linux SDKs for Windows

build-sdk.sh

@@ -14,14 +14,17 @@ case $1 in
   i686)
     cp config-godot-i686 .config
     toolchain_prefix=i686-godot-linux-gnu
+    bits=32
   ;;
   x86_64)
     cp config-godot-x86_64 .config
     toolchain_prefix=x86_64-godot-linux-gnu
+    bits=64
   ;;
   armv7)
     cp config-godot-armv7 .config
     toolchain_prefix=arm-godot-linux-gnueabihf
+    bits=32
   ;;
   *)
     usage
@@ -41,7 +44,18 @@ ${container} build -f Dockerfile.builder -t godot-buildroot-builder
 ${container} run -it --rm -v $(pwd):/tmp/buildroot -w /tmp/buildroot -e FORCE_UNSAFE_CONFIGURE=1 --userns=keep-id godot-buildroot-builder scl enable devtoolset-9 "bash -c make syncconfig; make clean sdk"
 
 mkdir -p godot-toolchains
-mv output/images/${toolchain_prefix}_sdk-buildroot.tar.gz godot-toolchains
+
+rm -fr godot-toolchains/${toolchain_prefix}_sdk-buildroot
+tar xf output/images/${toolchain_prefix}_sdk-buildroot.tar.gz -C godot-toolchains
+
+pushd godot-toolchains/${toolchain_prefix}_sdk-buildroot
+../../clean-linux-toolchain.sh ${toolchain_prefix} ${bits}
+popd
+
+pushd godot-toolchains
+tar -cjf ${toolchain_prefix}_sdk-buildroot.tar.bz2 ${toolchain_prefix}_sdk-buildroot
+rm -rf ${toolchain_prefix}_sdk-buildroot
+popd
 
 echo
 echo "***************************************"

clean-linux-toolchain.sh

@@ -0,0 +1,91 @@
+#!/bin/bash
+
+set -e
+
+if [ -z $1 ] || [ -z $2 ]; then
+  echo "usage: $0 arch bits"
+  exit 1
+fi
+
+arch=$1
+bits=$2
+
+bin_to_keep="aclocal autoconf autoheader automake autoreconf cmake gawk libtool m4 meson ninja pkgconf pkg-config python3 scons tar toolchain-wrapper"
+lib_to_keep="cmake gcc libpkgconf libpython3.9 libz libisl libmpc libmpfr libgmp libffi python3.9 pkgconfig"
+share_to_keep="aclocal autoconf buildroot cmake gcc libtool pkgconfig"
+sysroot_share_to_keep="aclocal pkgconfig"
+
+function clean_directory() {
+  pushd $1
+  files_to_keep="${@:2}"
+
+  for file in $(ls -1); do
+    keep_file=0
+  
+    if echo ${file} | grep -qe "^${arch}"; then
+      keep_file=1
+    fi
+  
+    for keep in ${files_to_keep}; do
+      if echo ${file} | grep -qe "^${keep}"; then
+        keep_file=1
+        break
+      fi
+    done
+  
+    if [ ${keep_file} -eq 0 ]; then
+      rm -rf ${file}
+    fi
+  done
+
+  popd
+}
+
+rm -f $(find -name *.a | grep -vE '(nonshared|gcc|libstdc++)')
+find -regex '.*\.so\(\..*\)?' -exec bin/${arch}-strip {} \; 2> /dev/null
+find bin -exec bin/${arch}-strip {} \; 2> /dev/null
+find ${arch}/bin -exec bin/${arch}-strip {} \; 2> /dev/null
+find libexec/gcc -type f -exec bin/${arch}-strip {} \; 2> /dev/null
+
+clean_directory bin ${bin_to_keep}
+clean_directory lib ${lib_to_keep}
+clean_directory share ${share_to_keep}
+clean_directory ${arch}/sysroot/usr/share ${sysroot_share_to_keep}
+
+find -name *.pyc -delete
+
+rm -f usr lib64
+rm -rf sbin var
+
+for s in bin lib lib64 sbin; do
+  if [ -L ${arch}/sysroot/${s} ]; then
+    rm -f ${arch}/sysroot/${s}
+  fi
+done
+
+if [ ${bits} == 64 ]; then
+  libdir_to_remove=lib
+  libdir_to_keep=lib64
+else
+  libdir_to_remove=lib64
+  libdir_to_keep=lib
+fi
+
+rm -rf ${arch}/sysroot/usr/{bin,sbin}
+
+mkdir -p ${arch}/sysroot/${libdir_to_keep}
+cp ${arch}/sysroot/usr/${libdir_to_keep}/libpthread*so* ${arch}/sysroot/${libdir_to_keep}
+cp ${arch}/sysroot/usr/${libdir_to_keep}/ld-linux*so* ${arch}/sysroot/${libdir_to_keep}
+cp ${arch}/sysroot/usr/${libdir_to_keep}/libc*so* ${arch}/sysroot/${libdir_to_keep}
+
+if [ -L ${arch}/sysroot/usr/${libdir_to_keep} ]; then
+  rm ${arch}/sysroot/usr/${libdir_to_keep}
+  mv ${arch}/sysroot/usr/${libdir_to_remove} ${arch}/sysroot/usr/${libdir_to_keep}
+  mkdir ${arch}/sysroot/usr/${libdir_to_remove}
+  mv ${arch}/sysroot/usr/${libdir_to_keep}/crt*.o ${arch}/sysroot/usr/${libdir_to_remove}
+  mv ${arch}/sysroot/usr/${libdir_to_keep}/pkgconfig ${arch}/sysroot/usr/${libdir_to_remove}
+  # But why tho
+  mv ${arch}/sysroot/usr/${libdir_to_keep}/pulseaudio ${arch}/sysroot/usr/${libdir_to_remove}
+fi
+
+find -name *python2* -exec rm -rf {} \; || true