Add script to convert RGB to hex

rgb-to-hex.js

@@ -0,0 +1,18 @@
+#!/usr/bin/env node
+const yaml = require('js-yaml');
+const fs = require('fs');
+
+const input = fs.readFileSync(process.argv[2], 'utf8');
+const src = yaml.load(input);
+
+const asHex = (channel) => channel.toString(16).toUpperCase().padStart(2, '0');
+
+const convertedEntries = Object.entries(src)
+  .map(([language, { type, ascii, colors: { ansi, rgb, chip }}]) => {
+    const hex = rgb?.map(([r, g, b]) => `#${asHex(r)}${asHex(g)}${asHex(b)}`);
+    const hexChip = chip.reduce((s, channel) => `${s}${asHex(channel)}`, '#');
+    return [language, { type, ascii, colors: { ansi, hex, chip: hexChip }}];
+  });
+
+const converted = yaml.dump(Object.fromEntries(convertedEntries));
+console.log(converted);