migrate packages to home manager

update-intellij.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+nixFile="./packages/intellij.nix"
+info=$(curl --silent --fail --show-error "https://download.jetbrains.com/idea/ideaIU-$1.tar.gz.sha256")
+checksum=$(echo $info | grep -oE '^[0-9a-f]{64}')
+filename=$(echo $info | grep -oE '[^* ]+$')
+if [ -z "${checksum}" ] || [ -z "${filename}" ]; then
+  exit -1
+fi
+echo "Filename: $filename"
+echo "Checksum: $checksum"
+
+sed -i "s|version\s*=.*|version = \"$1\";|" "$nixFile"
+sed -i "s|url\s*=.*|url = \"https://download.jetbrains.com/idea/$filename\";|" "$nixFile"
+sed -i "s|sha256\s*=.*|sha256 = \"$checksum\";|" "$nixFile"
+
+echo ""
+echo "IntelliJ updated to $1"
+