migrate-issue.php

<?php
    /* bitbucket user */
    $bb_user   = 'aveline';
    $bb_pass   = '**YOUR PASSWORD**';
  
    /* github username and password */
    $gh_conf   = array(
        'ym'                => '**YOUR PASSWORD**',
        'aveline'           => '**YOUR PASSWORD**'
    );

    /* mapping */
    $bb_gh     = array(
        'aveline'           => 'ym',
        'aveline2'          => 'aveline'
    );

    /* default github user */
    $bb_gh_default = 'ym';

    /* bitbucket repo name*/
    $repo = 'aveline/freengine4';

    /* github repo name */
    $gh_repo = 'ym/freengine4';

    $imports   = array();

    $issue_max = 0;
    $issue_min = 1024;

    foreach(array('new', 'open','resolved','on hold','invalid','duplicate','wontfix') as $_status) {

        echo "Fetched Issue(s) Which Status is {$_status} ... ";

        $s = json_decode(file_get_contents("https://api.bitbucket.org/1.0/repositories/{$repo}/issues?count=99&status=". urlencode($_status), false, 
            stream_context_create(array(
                'http' => array(
                    'header'  => "Authorization: Basic " . base64_encode("$bb_user:$bb_pass")
            )))
        ), true);

        echo "Fetched {$s['count']} Issue(s)\n";

        foreach ($s['issues'] as $_issue) {
            $imports[$_issue['local_id']] = $_issue;
        }
    }

    echo "Fetched " . count($imports) . " Issues\n";
    echo "Rebuilding Index ...\n";

    foreach ($imports as $i=>$_issue) {
        $i = (int) $i;

        if($i > $issue_max)
            $issue_max = $i;

        if($i < $issue_min)
            $issue_min = $i;
    }

    echo "Issue Range [{$issue_min}, {$issue_max}]\n";

    $issues = range($issue_min, $issue_max);

    foreach ($issues as $i=>&$issue) {
        if(isset($imports[$i])) {
            echo "Issue #{$i}/#{$imports[$i]['local_id']} Found: {$imports[$i]['title']}, {$imports[$i]['reported_by']['username']}\n";
            $issue = $imports[$i];
        } else {
            echo "Issue #{$i} Not Found, Filled with null data\n";
            $issue = false;
        }
    }

    echo "Issue Index Rebuilt\n";

    foreach ($issues as $i=>$issue) {
        if($i == 0)
            continue;

        $user = $imports[$i]['reported_by']['username'];

        if(isset($bb_gh[$user])) {
            $user = $bb_gh[$user];
        } else {
            echo "No matched user {$user} in BB2GH array, using {$bb_gh_default} instead\n";
            $user = $bb_gh_default;
        }

        echo "Creating Issue #{$i} in Github using user {$user} ...";

        $ch = curl_init("https://api.github.com/repos/{$gh_repo}/issues");

        $data = array(
            'title'                 => $issue['title'],
            'body'                  => $issue['content'],
            'labels'                => array($issue['metadata']['kind'])
        );

        curl_setopt_array($ch, array(
            CURLOPT_POST            => true,
            CURLOPT_USERPWD         => "$user:{$gh_conf[$user]}",
            CURLOPT_POSTFIELDS      => json_encode($data),
            CURLOPT_RETURNTRANSFER  => true
        ));

        $result = curl_exec($ch);

        if($result) {
            echo "OK\n";
        }
    }
    

    unset($_status);