module pref

import os

pub fn get_build_facts_and_defines() ([]string, []string) {
    facts := os.getenv('VBUILD_FACTS').split_any(',')
    defines := os.getenv('VBUILD_DEFINES').split_any(',')
    return facts, defines
}

@[manualfree]
pub fn set_build_flags_and_defines(facts []string, defines []string) {
    sfacts := facts.join(',')
    sdefines := defines.join(',')
    os.setenv('VBUILD_FACTS', sfacts, true)
    os.setenv('VBUILD_DEFINES', sdefines, true)
    $if trace_vbuild ? {
        eprintln('> VBUILD_FACTS: ${sfacts}')
        eprintln('> VBUILD_DEFINES: ${sdefines}')
    }
    unsafe { sdefines.free() }
    unsafe { sfacts.free() }
}