Diff Composer Packages

diff_composer_packages.php

<?php

$old = [
    'muz' => [
        'package1' => [
            '1.0.0',
            '1.0.1',
            '2.0.0'
        ],
        'package2' => ['1.0.0'],
        'package3' => ['1.0.0', '2.0.0']
    ],
    'notchanged' => [
        'otherPackage1' => ['1.0.0']
    ],
    'changed' => [
        'anotherPackage1' => ['1.0.0']
    ]
];

$new = [
    'muz' => [
        'package1'     => [
            '1.0.0',
            '2.0.0',
            '2.0.1'
        ],
        'package3' => ['1.0.0', '2.0.0'],
        'package4' => ['1.0.0']
    ],
    'notchanged' => [
        'otherPackage1' => ['1.0.0']
    ],
    'changed' => [
        'anotherPackage1' => ['1.0.0', '1.0.1'],
        'anotherPackage2' => ['1.0.0']
    ]
];

$old_flat = [];
foreach ($old as $vendor => $packages) {
    foreach ($packages as $package => $versions) {
        foreach ($versions as $version) {
            $old_flat[] = $vendor. '/' . $package . ':' . $version;
        }
    }
}

$new_flat = [];
foreach ($new as $vendor => $packages) {
    foreach ($packages as $package => $versions) {
        foreach ($versions as $version) {
            $new_flat[] = $vendor. '/' . $package . ':' . $version;
        }
    }
}

// array_diff
$not_changed = array_intersect($old_flat, $new_flat);

$removed = array_filter($old_flat, function ($package) use ($not_changed) {
    return !in_array($package, $not_changed);
});

$added = array_filter($new_flat, function ($package) use ($not_changed) {
    return !in_array($package, $not_changed);
});

sort($added);
sort($removed);

echo "# Added\n";
foreach ($added as $item) {
    echo "* $item\n";
}

echo "\n";
echo "# Removed\n";
foreach ($removed as $item) {
    echo "* $item\n";
}