smaller images

Former-commit-id: dde678d5fa343d18dcf0c82ef7a07936c676bfea

db/image-smallinator.js

@@ -0,0 +1,50 @@
+const fs = require('fs');
+const sharp = require('sharp');
+
+// itterate over every single png file in img recursively
+const dir = './db/img';
+const replaceDir = './db/image';
+
+// https://stackoverflow.com/questions/5827612/node-js-fs-readdir-recursive-directory-search
+const { promisify } = require('util');
+const { resolve } = require('path');
+const readdir = promisify(fs.readdir);
+const stat = promisify(fs.stat);
+
+async function getFiles(dir) {
+    const subdirs = await readdir(dir);
+    const files = await Promise.all(subdirs.map(async (subdir) => {
+        const res = resolve(dir, subdir);
+        return (await stat(res)).isDirectory() ? getFiles(res) : res;
+    }));
+    return files.reduce((a, f) => a.concat(f), []);
+}
+
+function itterate(files) {
+    for (let i = 0; i < files.length; i++) {
+        const file = files[i];
+
+        // if file is a png, compress using sharp
+        if (file.endsWith('.png')) {
+            console.log(`Compressing ${file}`);
+            const fileName = file.split('img').pop();
+            sharp(file)
+                .withMetadata()
+                .png({
+                    quality: 50,
+                    compression: 6,
+                })
+                .toFile(`${replaceDir}/${fileName}`, (err) => {
+                    if (err) {
+                        console.log(err);
+                        return;
+                    }
+                    console.log(`Compressed ${file}`);
+                });
+        }
+    }
+}
+
+getFiles(dir)
+    .then(files => itterate(files))
+    .catch(e => console.error(e));