#!/usr/bin/env nu

let dotfiles = ($env.HOME | path join "nixos-config/dotfiles")
let config = ($env.HOME | path join ".config")

# iterate over all files in dotfiles/
glob $"($dotfiles)/**/*" | where ($it | path type) == "file" | each {|file|
    let rel = ($file | str replace $"($dotfiles)/" "")
    let target = ($config | path join $rel)
    let target_dir = ($target | path dirname)

    # ensure parent dir exists
    mkdir $target_dir

    # skip if already correctly symlinked
    if ($target | path type) == "symlink" {
        return
    }

    # back up existing file
    if ($target | path exists) {
        print $"backing up ($target) → ($target).bak"
        mv $target $"($target).bak"
    }

    print $"linking ($target) → ($file)"
    ln -s $file $target
}