init project

node_modules/pixelmatch/bin/pixelmatch

@@ -0,0 +1,39 @@
+#!/usr/bin/env node
+
+import {PNG} from 'pngjs';
+import fs from 'fs';
+import match from '../index.js';
+
+if (process.argv.length < 4) {
+    console.log('Usage: pixelmatch image1.png image2.png [diff.png] [threshold] [includeAA]');
+    process.exit(64);
+}
+
+const [,, img1Path, img2Path, diffPath, threshold, includeAA] = process.argv;
+const options = {};
+if (threshold !== undefined) options.threshold = +threshold;
+if (includeAA !== undefined) options.includeAA = includeAA !== 'false';
+
+const img1 = PNG.sync.read(fs.readFileSync(img1Path));
+const img2 = PNG.sync.read(fs.readFileSync(img2Path));
+
+const {width, height} = img1;
+
+if (img2.width !== width || img2.height !== height) {
+    console.log(`Image dimensions do not match: ${width}x${height} vs ${img2.width}x${img2.height}`);
+    process.exit(65);
+}
+
+const diff = diffPath ? new PNG({width, height}) : null;
+
+console.time('matched in');
+const diffs = match(img1.data, img2.data, diff ? diff.data : null, width, height, options);
+console.timeEnd('matched in');
+
+console.log(`different pixels: ${diffs}`);
+console.log(`error: ${Math.round(100 * 100 * diffs / (width * height)) / 100}%`);
+
+if (diff) {
+    fs.writeFileSync(diffPath, PNG.sync.write(diff));
+}
+process.exit(diffs ? 66 : 0);