#!/bin/bash

# setup some configs catalyst doesn't handle
# i.e: update locale.gen to speed up builds
maybe_append() {
    [[ -f "$1" && ! -w "$1" ]] && return
    if ! grep -q "^$2" "$1"; then
        echo "$2" >> "$1"
    fi
}

fixup_rootfs() {
    mkdir -p "$1/etc" 2>/dev/null || return
    maybe_append "$1/etc/locale.gen" "en_US ISO-8859-1"
    maybe_append "$1/etc/locale.gen" "en_US.UTF-8 UTF-8"
}

# Fix both / and $ROOT (if it exists)
fixup_rootfs
[[ "${ROOT:-/}" != / ]] && fixup_rootfs "$ROOT"
unset fixup_rootfs maybe_append