Get commit messages from merge requests, to be run on CLI

gitlab_changelog.php

<?php 
if ( php_sapi_name() !== "cli" ) 
{
    exit(1);
}

// Curl response headers
class CurlResponse
{
    var $headers;

    function __construct () {
        $this->headers = array();
    }

    function parse_header ( $handle, $header )
    {
        $details = explode(':', $header, 2);

        if ( count( $details ) == 2 )
        {
            $key   = trim( $details[0] );
            $value = trim( $details[1] );

            $this->headers[ $key ] = $value;
        }

        return strlen( $header );
    }
}

$response = new CurlResponse();

// public configurable
$project_id = @getopt("p:");
$private_token = @getopt("t:");

if ( count( $argv ) !== 3 ) 
{
    fwrite(STDERR, "==================\nMissing arguments! \n==================
    Usage: php gitlab_changelog.php -p=<GITLAB_PROJECT_ID> -t=<GITLAB_TOKEN>
    \n");
    exit(1);
}

if ( empty( $project_id ) )
{
    fwrite(STDERR, "Project ID has not been specified with -p=PROJECT-ID.\n");
    exit(1);
}

if ( empty( $private_token ) )
{
    fwrite(STDERR, "Private API token has not been specified with -t=TOKEN.\n");
    exit(1);
}

// details
$domain = "https://gitlab.com/";
$api = "api/v3/";
$endpoint = "projects/{$project_id['p']}/merge_requests";
$parameters = "?state=merged&order_by=updated_at&sort=desc&per_page=75";

// setup and execute request
$gitlab_api_get_request = $domain . $api . $endpoint . $parameters;
$curl_headers = array(
    "PRIVATE-TOKEN: {$private_token['t']}",
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $gitlab_api_get_request);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_HTTPHEADER, $curl_headers);
curl_setopt($ch, CURLOPT_HEADERFUNCTION, array(&$response, 'parse_header'));
$ce = curl_exec($ch);
$data = json_decode( $ce );

if ( !is_array( $data ) ) 
{
    echo "\nFailed!";
    
    if ( !curl_errno( $ch ) ) {
        $info = curl_getinfo($ch);
        echo '<h2>Response code: ', curl_getinfo($ch, CURLINFO_HTTP_CODE), "</h2>\n";
        echo '<h2>Took ', $info['total_time'], ' seconds to send a request to ', $info['url'], "</h2>\n";
        echo '<h2>Executed: ', "curl --header \"{$curl_headers[0]}\" -O $gitlab_api_get_request", "</h2>\n";
        var_dump($response->headers, $ce, $data, $info);
    }
    curl_close($ch);
    exit;
} else {
    curl_close($ch);
}

// MAKEFILE
$changelog = "# Change Log\nAll notable changes to this project will be documented in this file.\n\n";
$version = "1.x.x";
foreach( $data as $object ) {
    $desc = empty($object->description) ? $object->title : $object->description;
    $changelog .= implode( "\n", array(
        sprintf("## %s - %s", $version, substr( $object->updated_at, 0, 10 ) ),
        "### CHANGED: \n",
        (substr($desc, 0, 1) !== "-" ? "- ".$desc : $desc),
        "\n"
    ));
}
echo $changelog;