post-commit-email for Japanese Encoding.

post-receive-email.php

<?php

$from = `git config hooks.envelopesender`;
$to   = `git config hooks.mailinglist`;
$emailprefix = `git config hooks.emailprefix`;

if (!$emailprefix)
    $emailprefix = '[SCM]';

if (!isset($argc) || $argc < 3){
    $stdin = file_get_contents('php://stdin');
    sscanf($stdin, '%s %s %s', $oldrev, $newrev, $refname);
}else{
    $oldrev = $argv[2];
    $newrev = $argv[3];
    $refname = $argv[1];
}

if (preg_match('/^0+$/', $oldrev))
    $mode = 'create';
else if (preg_match('/^0+$/', $newrev))
    $mode = 'delete';
else
    $mode = 'update';

ini_set('mbstring.language', 'Japanese');
ini_set('mbstring.internal_encoding', 'UTF-8');
date_default_timezone_set('Asia/Tokyo');

$param = `git config hooks.envelopesender`;

$headers = array(
  'Content-Type' => 'Content-Type: text/plain; charset=ISO-2022-JP',
  'Content-Transfer-Encoding' => 'Content-Transfer-Encoding: 7bit'
);
$param = "-f$from";

if ($mode === 'create'){
    if ($refname === 'refs/heads/master'){
        $revspec = "$newrev";
    }else{
        $oldrev = trim(`git merge-base master $newrev`);
        $revspec = "$oldrev..$newrev";
    }
}elseif ($mode === 'delete'){
    $revspec = $oldrev;
}else{
    $revspec = "$oldrev..$newrev";
}

$data = `git rev-list --pretty $revspec`;

$line = explode("\n", $data);
if ($mode === 'delete'){
    $title = "$refname deleted.";
}else{
    foreach ($line as $k => $v){
        if (strlen(trim($v)) === 0)
            break;
    }
    if (isset($line[$k+1]))
        $title = trim($line[$k+1]);
    else
        $title = $mode;
}

$title = $emailprefix . ' ' . $title;

if (preg_match('/Author: ([^<]+)(.*)/', $data, $matches)){
    $headers[] = 'From: '
        . mb_encode_mimeheader(trim($matches[1]), 'ISO-2022-JP')
        . $matches[2];
}

$headers = implode("\n", $headers);
if ($mode === 'delete')
    $message = "$refname deleted.\n";
else
    $message = "$refname\n$data\n----\n" . `git diff-tree --stat $revspec`
        . "\n\n" . `git diff-tree --binary $revspec`;

mb_send_mail($to, $title, $message, $headers, $param);