#!/usr/bin/perl -w
#
# Checks that the dependencies used by the direct tests in
# derive-adhoc-tests, are the same ones as specified in the
# derive-adhoc-macros Cargo.toml.

use strict;

use IO::Handle;
use TOML qw(from_toml);

sub read_file ($) {
    my ($file) = @_;
    local $/ = undef;
    open C, $file or die "$file $!";
    my $toml = <C> // die "$file $!";
    C->error and die "$file $!";
    $toml = from_toml($toml) || die "$file ?";
    return $toml;
}

my $macros = read_file 'macros/Cargo.toml';
my $tests = read_file 'tests/Cargo.toml';

sub normalise ($) {
    my ($info) = @_;
    if (!ref $info) {
	$info = { version => $info };
    }
    ($info, $info->{version} // '<unspecified>')
}

our $bad;

sub bad ($) {
    print STDERR "mismatch: $_[0]\n";
    $bad++;
}

foreach my $p (sort keys %{ $macros->{dependencies} }) {
    my ($mi, $mv) = normalise($macros->{dependencies}{$p});
    my $ti = $tests->{dependencies}{$p};
    if (!defined $ti) {
	bad "missing dependency $p";
	next;
    }
    my $tv;
    ($ti, $tv) = normalise($ti);
    if ($mv ne $tv) {
	bad "dependency $p macros have $mv tests have $tv";
    }
}

if ($bad) {
    die "Some dependencies in macros/Cargo.toml aren't matched in tests/\n";
}