first commit

build/node_modules/imagemin-pngquant/index.js

@@ -0,0 +1,62 @@
+'use strict';
+const execBuffer = require('exec-buffer');
+const isPng = require('is-png');
+const pngquant = require('pngquant-bin');
+
+module.exports = opts => buf => {
+	opts = Object.assign({}, opts);
+
+	if (!Buffer.isBuffer(buf)) {
+		return Promise.reject(new TypeError('Expected a buffer'));
+	}
+
+	if (!isPng(buf)) {
+		return Promise.resolve(buf);
+	}
+
+	const args = [
+		'--output', execBuffer.output,
+		execBuffer.input
+	];
+
+	if (opts.floyd && typeof opts.floyd === 'number') {
+		args.push(`--floyd=${opts.floyd}`);
+	}
+
+	if (opts.floyd && typeof opts.floyd === 'boolean') {
+		args.push('--floyd');
+	}
+
+	if (opts.nofs) {
+		args.push('--nofs');
+	}
+
+	if (opts.posterize) {
+		args.push('--posterize', opts.posterize);
+	}
+
+	if (opts.quality) {
+		args.push('--quality', opts.quality);
+	}
+
+	if (opts.speed) {
+		args.push('--speed', opts.speed);
+	}
+
+	if (opts.verbose) {
+		args.push('--verbose');
+	}
+
+	return execBuffer({
+		input: buf,
+		bin: pngquant,
+		args
+	}).catch(err => {
+		if (err.code === 99) {
+			return buf;
+		}
+
+		err.message = err.stderr || err.message;
+		throw err;
+	});
+};