script for manually shrinking images

.gitignore

@@ -3,3 +3,7 @@ node_modules/
 package-lock.json
 .cache
 patches
+tools/in/*
+!tools/in/.gitkeep
+tools/out/*
+!tools/out/.gitkeep

package.json

@@ -8,7 +8,8 @@
 		"start": "cross-env NODE_ENV=localhost npx @11ty/eleventy --serve --quiet",
 		"debug": "cross-env DEBUG=Eleventy* npx @11ty/eleventy",
 		"debugstart": "cross-env DEBUG=Eleventy* npx @11ty/eleventy --serve --quiet",
-		"benchmark": "cross-env DEBUG=Eleventy:Benchmark* npx @11ty/eleventy"
+		"benchmark": "cross-env DEBUG=Eleventy:Benchmark* npx @11ty/eleventy",
+		"img2k": "node tools/img-shrink.js"
 	},
 	"repository": {
 		"type": "git",
@@ -39,6 +40,7 @@
 		"@11ty/eleventy-plugin-rss": "^1.2.0",
 		"@11ty/eleventy-plugin-syntaxhighlight": "^5.0.0",
 		"cross-env": "^7.0.3",
+		"gm": "^1.22.0",
 		"luxon": "^3.3.0",
 		"markdown-it-anchor": "^8.6.7"
 	}

tools/img-shrink.js

@@ -0,0 +1,27 @@
+// winget install ImageMagick.Q8
+const { exec } = require('node:child_process');
+const { readdir } = require('node:fs/promises');
+const path = require('node:path');
+
+async function main() {
+    const dirIn = 'tools/in';
+    const dirOut = 'tools/out';
+    for (const base of await readdir(dirIn)) {
+        if (base === '.gitkeep') continue;
+        const fileIn = `${dirIn}/${base}`;
+        const file = path.parse(fileIn);
+        const fileOut = `${dirOut}/${file.name}.webp`;
+
+        const lossless = file.ext === '.png';
+        const cmd = [
+            `magick "${fileIn}"`,
+            `-define webp:lossless=${lossless}`,
+            `-define webp:target-size=200kb`,
+            `"${fileOut}"`,
+        ].join(' ');
+        console.log(cmd);
+        exec(cmd, (_err, stdout, stderr) => console.log(stdout + stderr));
+    }
+}
+
+main();