Bun Bun
66 lines
2.2 KiB
JavaScript
66 lines
2.2 KiB
JavaScript
const fs = require('fs');
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const path = require('path');
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// Minimal valid 1x1 red PNG (base64) - scaled up to requested sizes via simple pixel repetition
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// For a real extension build, we just need valid PNG files. Chrome won't validate content during build.
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// We'll create minimal valid PNG files.
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function createSolidColorPNG(width, height, r, g, b) {
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// PNG signature
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const signature = Buffer.from([0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A]);
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// Helper: create PNG chunk
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function makeChunk(type, data) {
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const typeBuf = Buffer.from(type, 'ascii');
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const lenBuf = Buffer.alloc(4);
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lenBuf.writeUInt32BE(data.length, 0);
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const crc = require('zlib').crc32(Buffer.concat([typeBuf, data]));
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const crcBuf = Buffer.alloc(4);
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crcBuf.writeUInt32BE(crc, 0);
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return Buffer.concat([lenBuf, typeBuf, data, crcBuf]);
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}
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// IHDR chunk
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const ihdr = Buffer.alloc(13);
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ihdr.writeUInt32BE(width, 0);
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ihdr.writeUInt32BE(height, 4);
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ihdr[8] = 8; // bit depth
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ihdr[9] = 2; // color type RGB
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ihdr[10] = 0; // compression
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ihdr[11] = 0; // filter method
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ihdr[12] = 0; // interlace
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// IDAT chunk - raw image data: filter byte + RGB pixels per row
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const rowSize = 1 + width * 3;
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const rawData = Buffer.alloc(height * rowSize);
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for (let y = 0; y < height; y++) {
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rawData[y * rowSize] = 0; // filter byte: none
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for (let x = 0; x < width; x++) {
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rawData[y * rowSize + 1 + x * 3] = r;
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rawData[y * rowSize + 1 + x * 3 + 1] = g;
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rawData[y * rowSize + 1 + x * 3 + 2] = b;
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}
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}
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const compressed = require('zlib').deflateSync(rawData);
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// IEND chunk
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const iend = makeChunk('IEND', Buffer.alloc(0));
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return Buffer.concat([
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signature,
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makeChunk('IHDR', ihdr),
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makeChunk('IDAT', compressed),
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iend
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]);
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}
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const outDir = path.join(__dirname, 'icons');
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fs.mkdirSync(outDir, { recursive: true });
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fs.writeFileSync(path.join(outDir, 'icon16.png'), createSolidColorPNG(16, 16, 239, 68, 68));
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fs.writeFileSync(path.join(outDir, 'icon48.png'), createSolidColorPNG(48, 48, 239, 68, 68));
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fs.writeFileSync(path.join(outDir, 'icon128.png'), createSolidColorPNG(128, 128, 239, 68, 68));
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console.log('Icons generated successfully');
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