#!/bin/zsh
# shellcheck disable=SC2206
# shellcheck disable=SC2179
# shellcheck disable=SC2154

# In case a plugin adds a redundant path entry, remove duplicate entries
# from PATH
# from: https://unix.stackexchange.com/questions/40749/remove-duplicate-path-entries-with-awk-command
get_var() {
  eval 'printf "%s\n" "${'"$1"'}"'
}
set_var() {
  eval "$1=\"\$2\""
}
dedup_pathvar() {
  pathvar_name="$1"
  pathvar_value="$(get_var "$pathvar_name")"
  deduped_path="$(perl -e 'print join(":",grep { not $seen{$_}++ } split(/:/, $ARGV[0]))' "$pathvar_value")"
  set_var "$pathvar_name" "$deduped_path"
}
dedup_pathvar PATH
dedup_pathvar MANPATH