Github Label Manager

composer.json

{
    "require": {
        "guzzlehttp/guzzle": "~5.2"
    }
}

gistfile1.php

<?php

require_once(__DIR__ . '/vendor/autoload.php');

$githubOrganization = 'symm';
$authToken          = 'AUTH_TOKEN_HERE'; // Create a personal access token @ https://github.com/settings/applications

$repos = [
    'Geo',
    'kata-poker'
];

$desiredLabels = [
    '✔'                  => '89f786',
    '✔✔'                => '4be324',
    '✔✔✔'              => '2d9e11',

    '✘'                   => 'ffb8b8',
    '✘✘'                  => 'fc4e4e',
    '✘✘✘'                => 'ff0000',

    '[A] Security'        => 'ff7600',
    '[A] View'            => '2a4380',
    '[A] Entity'          => '2a4380',
    '[A] Deployment'      => '2a4380',
    '[A] Front End'       => '2a4380',

    '[D] Documentation'   => '01939a',
    '[D] Examples'        => '01939a',

    '[P] Accepted'        => 'ffe940',
    '[P] Awaiting Action' => 'ffe940',
    '[P] Design'          => 'ffe940',
    '[P] Implementation'  => 'ffe940',
    '[P] Integration'     => 'ffe940',
    '[P] Pending Review'  => 'ffe940',
    '[P] Refactor'        => 'ffe940',

    '[S] Blocked'         => '000000',
    '[S] Complete'        => '000000',
    '[S] Discuss'         => '000000',
    '[S] Duplicate'       => '000000',
    '[S] Fixed Elsewhere' => '000000',
    '[S] Hold'            => '000000',
    '[S] Rejected'        => '000000',
    '[S] Won\'t Fix'      => '000000',

    '[T] User Story'      => '6c8ad5',
    '[T] Code Test'       => '6c8ad5',
];

$client = new GuzzleHttp\Client([
    'base_url' => 'https://api.github.com/',
    'defaults' => [
        'headers' => [
            'Authorization' => 'token ' . $authToken
        ]
    ]
]);

foreach ($repos as $repo) {
    echo 'Working on repo: ' . $repo . PHP_EOL;

    $existingLabels = [];
    $labelsToRemove = [];
    $labelsToAdd    = [];

    $response = $client->get('repos/' . $githubOrganization . '/'. $repo . '/labels');
    $response = $response->json();
    foreach ($response as $label) {
        $name = $label['name'];
        $existingLabels[$name] = $label['color'];
    }

    $labelsToRemove = array_diff($existingLabels, $desiredLabels);
    $labelsToAdd    = array_diff($desiredLabels, $existingLabels);

    foreach ($labelsToRemove as $name => $color) {
        echo 'Removing Label: ' . $name . PHP_EOL;
        $client->delete('repos/' . $githubOrganization . '/' . $repo .'/labels/' . $name);
    }

    foreach ($labelsToAdd as $name => $color) {
        echo 'Adding Label: ' . $name . PHP_EOL;
        $client->post('repos/' . $githubOrganization . '/'. $repo . '/labels', [
            'body' => json_encode([
                'name'  => $name,
                'color' => $color
            ])
        ]);
    }
}