Galerie und tage

node_modules/imagemin-gifsicle/index.js

@@ -1,41 +1,66 @@
 'use strict';
-const execBuffer = require('exec-buffer');
-const gifsicle = require('gifsicle');
-const isGif = require('is-gif');
 
-module.exports = opts => buf => {
-	opts = Object.assign({}, opts);
+var spawn = require('child_process').spawn;
+var gifsicle = require('gifsicle');
+var isGif = require('is-gif');
+var through = require('through2');
 
-	if (!Buffer.isBuffer(buf)) {
-		return Promise.reject(new TypeError('Expected a buffer'));
-	}
+module.exports = function (opts) {
+	opts = opts || {};
 
-	if (!isGif(buf)) {
-		return Promise.resolve(buf);
-	}
+	return through.ctor({objectMode: true}, function (file, enc, cb) {
+		if (file.isNull()) {
+			cb(null, file);
+			return;
+		}
 
-	const args = ['--no-warnings', '--no-app-extensions'];
+		if (file.isStream()) {
+			cb(new Error('Streaming is not supported'));
+			return;
+		}
 
-	if (opts.interlaced) {
-		args.push('--interlace');
-	}
+		if (!isGif(file.contents)) {
+			cb(null, file);
+			return;
+		}
 
-	if (opts.optimizationLevel) {
-		args.push(`--optimize=${opts.optimizationLevel}`);
-	}
+		var args = ['-w'];
+		var ret = [];
+		var len = 0;
 
-	if (opts.colors) {
-		args.push(`--colors=${opts.colors}`);
-	}
+		if (opts.interlaced) {
+			args.push('--interlace');
+		}
 
-	args.push('--output', execBuffer.output, execBuffer.input);
+		var cp = spawn(gifsicle, args);
 
-	return execBuffer({
-		input: buf,
-		bin: gifsicle,
-		args
-	}).catch(error => {
-		error.message = error.stderr || error.message;
-		throw error;
+		cp.stderr.setEncoding('utf8');
+		cp.stderr.on('data', function (data) {
+			var err = new Error(data);
+			err.fileName = file.path;
+			cb(err);
+			return;
+		});
+
+		cp.stdout.on('data', function (data) {
+			ret.push(data);
+			len += data.length;
+		});
+
+		cp.on('error', function (err) {
+			err.fileName = file.path;
+			cb(err);
+			return;
+		});
+
+		cp.on('close', function () {
+			if (len < file.contents.length) {
+				file.contents = Buffer.concat(ret, len);
+			}
+
+			cb(null, file);
+		});
+
+		cp.stdin.end(file.contents);
 	});
 };