function getFileHash($basef, $f, $outDir, $relativeDir = null)
{
global $g_hash;
global $g_handledFiles;
if ($relativeDir == null) {
$relativeDir = dirname($basef);
}
$f0 = formatPath($relativeDir . "/{$f}");
$f1 = $outDir . "/" . $f0;
$f2 = realpath($f1);
if ($f2 === false || !array_key_exists($f0, $g_handledFiles)) {
handleOne($f0, $outDir, true);
}
$f2 = realpath($f1);
if ($f2 === false) {
die("*** fail to find file `{$f}` base on `{$basef}` ({$f2})\n");
}
@($hash = $g_hash[$f2]);
if ($hash == null) {
$hash = sha1_file($f2);
$g_hash[$f2] = $hash;
// echo("### hash {$f2}\n");
} else {
// echo("### reuse hash({$f2})\n");
}
return substr($hash, -6);
}
// }}}
// ====== main
//var_dump($options);
@($content = file_get_contents($infile)) or die("*** cannot open infile: `{$infile}'\n");
@($fpout = fopen($options["out"], "w")) or die("*** cannot open out file: `{$options['out']}'\n");
chdir(dirname($infile));
// 第一遍扫描，去除注释，扫描图片并以 "{{n}}" 标记，下次扫描时将填上正确内容。
$content = preg_replace_callback('/ \\/\\* (.|\\n)*? \\*\\/\\s* |
background.*? url\\(\\s*(.*?)\\s*\\).*?;
/x', function ($ms) {
if ($ms[1]) {
return "";
}
global $picArr;
$n = count($picArr);
handleOne($ms[2]);
return '{{' . $n . '}}';
}, $content);
// generate sprite: icon.png, icon-16.png, etc.
foreach ($inputInfo as $w => $e) {
$src = "";
foreach ($e["pics"] as $pic) {
$src .= $pic["file"] . " ";
}
$dst = getSpriteFilename($w);
$cmd = "convert {$src} -append {$dst}";
#echo($cmd . "\n\n");
$lines = null;
$info = exec($cmd, $lines, $rv);
if ($rv != 0) {
die("fail to generate sprite: {$info}\n");