{ pkgs, ... }:
pkgs.mkShell {
  packages = with pkgs; [
    go
    gopls
    go-tools
    golangci-lint
    golangci-lint-langserver
    jdk17
  ];

  shellHook = ''
    if git rev-parse --is-inside-work-tree &> /dev/null; then
      TOP="$(git rev-parse --show-toplevel)"
      if ! grep -q "^\.go$" "$TOP/.gitignore" "$TOP/.git/info/exclude"; then echo ".go" >> "$TOP/.git/info/exclude"; fi
      if ! grep -q "^\.gradle$" "$TOP/.gitignore" "$TOP/.git/info/exclude"; then echo ".gradle" >> "$TOP/.git/info/exclude"; fi
    else
      TOP="$(pwd)"
    fi

    export GOPATH="$TOP/.go"
    export GOPROXY=goproxy.unx.sas.com
    export GONOSUMDB=*.sas.com,sassoftware.io
    export JAVA_HOME="${pkgs.jdk17.home}"
    export GRADLE_USER_HOME="$TOP/.gradle"
    mkdir -p "$GRADLE_USER_HOME" && cp -f ~/.gradle/gradle.properties "$GRADLE_USER_HOME/gradle.properties"
  '';
}