build: move platform release scripts

linux/release_linux.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+case $1 in
+  x86|arm)
+    ;;
+  *)
+  echo "Usage: release_macos.sh [platform]\n - platform: 'x86', 'arm'" >&2
+  exit 1
+esac
+
+# Setup build directory
+BASEDIR=$(cd $(dirname $0) && pwd)
+cd ${BASEDIR}
+cd ..
+
+# Setup platform argument
+[[ $1 == "x86" ]] && arch+=(x86_64-unknown-linux-gnu)
+[[ $1 == "arm" ]] && arch+=(aarch64-unknown-linux-gnu)
+
+# Start release build with zig linker for cross-compilation
+cargo install cargo-zigbuild
+cargo zigbuild --release --target ${arch}
+
+# Create AppImage with https://github.com/AppImage/appimagetool
+cp target/${arch}/release/grim linux/Grim.AppDir/AppRun
+rm target/${arch}/release/*.AppImage
+appimagetool linux/Grim.AppDir
+mv *.AppImage target/${arch}/release/Grim-0.1.0-linux-$1.AppImage