app_containers: Add automatic shortcut generation

app_containers/.local/bin/generate_shortcut_container_app

@@ -0,0 +1,36 @@
+#!/bin/bash
+
+die() {
+  echo "$1" >&2
+  exit 1
+}
+
+container_name="$1"
+[ -z "container_name" ] && die "Please provide name of container"
+container_root=/var/lib/machines/$container_name
+
+app_name="$2"
+[ -z "$app_name" ] && die "Please provide name of app"
+
+desktop_file=$container_root/usr/share/applications/$app_name.desktop
+desktop_file_content=$(sudo cat $desktop_file 2>/dev/null)
+[ $? == 0 ] || die "App $app_name not found in container $container_name"
+
+icon_name=$(echo "$desktop_file_content" | grep "Icon=" | head -1 | cut -d'=' -f 2)
+[ -z "$icon_name" ] && die "No icon defined for app $app_name"
+
+icon_root=$container_root/usr/share/icons/hicolor
+icons=($(sudo find $icon_root -name "$icon_name.*"))
+[ ${#icons[@]} == 0 ] && die "Cannot find any icon for app $app_name"
+
+for icon in ${icons[@]}; do
+  icon_target=${icon//$icon_root/$HOME/.local/share/icons/hicolor}
+  icon_target_dir=$(dirname "$icon_target")
+  echo "Copying $icon to $icon_target in $icon_target_dir"
+  mkdir -p "$icon_target_dir"
+  sudo cat "$icon" > "$icon_target"
+done
+
+mkdir -p $HOME/.local/share/applications
+echo "$desktop_file_content" | sed -r "s@^Exec=(.*)\$@Exec=env CONTAINER_NAME=$container_name $HOME/.local/bin/run_app_container \\1@g" > $HOME/.local/share/applications/$app_name.desktop
+echo "Created $HOME/.local/share/applications/$app_name.desktop"