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author/update-aws-lambda-al.pl  view on Meta::CPAN

#!/usr/bin/env perl

use v5.36;
use FindBin;
use Parallel::ForkManager;
use Capture::Tiny ('capture');

my $archs = ['x86_64', 'arm64'];
my $regions = +{ map {
    my $arch = $_;
    open my $fh, '<', "$FindBin::Bin/regions-$arch.txt" or die "$!";
    my @regions = sort { $a cmp $b } map { chomp; $_; } <$fh>;
    close($fh);
    ($arch => \@regions);
} @$archs };

my $versions = [
    "5.38",
    "5.36",
    "5.34",
    "5.32",
    "5.30",
    "5.28",
    "5.26",
];
$versions = [sort {version->parse("v$b") <=> version->parse("v$a")} @$versions];

# get the list of layers on Amazon Linux 1
my $layers = {};
my $pm = Parallel::ForkManager->new(10);
$pm->run_on_finish(sub {
    my ($pid, $exit_code, $ident, $exit_signal, $core_dump, $data) = @_;
    return unless $data;
    my ($version, $region, $arn) = @$data;
    return unless $version && $region && $arn;
    $layers->{$version} //= {};
    $layers->{$version}{$region} = $arn;
});

for my $version (@$versions) {
    for my $region (@{$regions->{x86_64}}) {
        say STDERR "loading $version in $region...";
        $pm->start("$version/$region") and next;

        my $runtime_stack = "lambda-@{[ $version =~ s/[.]/-/r ]}-runtime";
        my $paws_stack = "lambda-@{[ $version =~ s/[.]/-/r ]}-paws";
        my ($stdout, $stderr, $exit);

        ($stdout, $stderr, $exit) = capture {
            system("aws --region $region cloudformation describe-stacks --output json --stack-name $runtime_stack | jq -r .Stacks[0].Outputs[0].OutputValue");
        };
        if ($exit != 0) {
            if ($stderr =~ /ValidationError/) {
                # the stack doesn't exist; skip it.
                $pm->finish;
                next;
            }
            die "failed to execute aws cli";
        }
        my $runtime_arn = $stdout;

        ($stdout, $stderr, $exit) = capture {
            system("aws --region $region cloudformation describe-stacks --output json --stack-name $paws_stack | jq -r .Stacks[0].Outputs[0].OutputValue");
        };
        if ($exit != 0) {
            if ($stderr =~ /ValidationError/) {
                # the stack doesn't exist; skip it.
                $pm->finish;
                next;
            }
            die "failed to execute aws cli";
        }
        my $paws_arn = $stdout;
 
        chomp($runtime_arn);
        chomp($paws_arn);
        $pm->finish(0, [$version, $region, {
            runtime_arn     => $runtime_arn,
            runtime_version => (split /:/, $runtime_arn)[-1],
            paws_arn        => $paws_arn,
            paws_version    => (split /:/, $paws_arn)[-1],
        }]);
    }
}
$pm->wait_all_children;

chomp(my $module_version = `cat $FindBin::Bin/../META.json | jq -r .version`);
my $latest_perl = $versions->[0];
my $latest_perl_layer = $latest_perl =~ s/[.]/-/r;
my $latest_runtime_arn = $layers->{$latest_perl}{'us-east-1'}{runtime_arn};
my $latest_runtime_version = $layers->{$latest_perl}{'us-east-1'}{runtime_version};
my $latest_paws_arn = $layers->{$latest_perl}{'us-east-1'}{paws_arn};
my $latest_paws_version = $layers->{$latest_perl}{'us-east-1'}{paws_version};