nix-recipes

I will be sharing any interesting small nix applications here.

Postgres server

Go to pg-server, for simple setup and execution of Postgres servers locally without Docker.

Target parent nix shell file

Enable nix-shell to use the closest default.nix or shell.nix from current directory upwards til /, by adding the following to your .bashrc:

function nix-shell-parent {
    function findShellInPath {
      path=$1
      [ -e "$path/default.nix" ] && echo "$path/default.nix"
      [ -e "$path/shell.nix" ] && echo "$path/shell.nix"
    }

    path=$(pwd)
    shellFile=""
    while [[ "$path" != "" && "$shellFile" == "" ]]; do
        shellFile="`findShellInPath $path`"
        path="${path%/*}"
    done
    if [[ "$shellFile" == "" ]]; then
      # above loop fails to check for shell files under /
      shellFile="`findShellInPath /`"
    fi

    [[ "$shellFile" == "" ]] && {
        echo 'no default.nix/shell.nix found in . / .. / etc.'
        return 1
    }
    echo "entering nix shell with $shellFile"
    nix-shell "$@" "$shellFile"
}