#!/usr/bin/env zsh

local -a deps=(
  '/usr/libexec/path_helper'
  '/etc/paths(N)'
  '/etc/paths.d/*(N)'
  '/etc/manpaths(N)'
  '/etc/manpaths.d/*(N)'
)

local -a stat files=($~deps)
zstat -A stat +mtime -- $files 2>/dev/null || return

local script
script="$(PATH= MANPATH= $deps[1] -s)" || return

(
  eval "$script" || return
  >$Z4H/cache/init-darwin-paths.tmp.$$ print -r -- '() {
  local deps=('${(@q)deps}')
  local -a stat files=($~deps)
  [[ ${(j: :)${(@q)files}} == '${(q)${(j: :)${(@q)files}}}' ]] &&
  zstat -A stat +mtime -- $files 2>/dev/null                   &&
  [[ ${(j: :)stat} == '${(q)${(j: :)stat}}'                 ]] && {
    local path_dirs=('${(j: :)${(@q)path}}')
    local manpath_dirs=('${(j: :)${(@q)manpath}}')
    path=(${path_dirs:|path} $path)
    manpath=(${manpath_dirs:|manpath} $manpath)
  }
}' || return
  zf_mv -f -- $Z4H/cache/init-darwin-paths.tmp.$$ $Z4H/cache/init-darwin-paths
)