wehub-resource-sync
85 lines
2.6 KiB
JavaScript
85 lines
2.6 KiB
JavaScript
#!/usr/bin/env node
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import { readFile, readdir, stat } from "node:fs/promises";
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import { join } from "node:path";
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import { fileURLToPath } from "node:url";
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const repoRoot = fileURLToPath(new URL("../..", import.meta.url));
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const providerDir = join(repoRoot, "public", "providers");
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const MAX_RASTER_BYTES = 128 * 1024;
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const MAX_RASTER_DIMENSION = 256;
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const RASTER_EXTENSIONS = new Set([".png", ".jpg", ".jpeg"]);
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function extensionOf(fileName) {
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const dot = fileName.lastIndexOf(".");
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return dot >= 0 ? fileName.slice(dot).toLowerCase() : "";
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}
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function readPngDimensions(buffer) {
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if (buffer.length < 24 || buffer.toString("ascii", 1, 4) !== "PNG") return null;
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return { width: buffer.readUInt32BE(16), height: buffer.readUInt32BE(20) };
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}
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function readJpegDimensions(buffer) {
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let offset = 2;
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while (offset + 9 < buffer.length) {
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if (buffer[offset] !== 0xff) return null;
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const marker = buffer[offset + 1];
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const length = buffer.readUInt16BE(offset + 2);
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if (marker >= 0xc0 && marker <= 0xc3) {
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return { height: buffer.readUInt16BE(offset + 5), width: buffer.readUInt16BE(offset + 7) };
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}
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offset += 2 + length;
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}
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return null;
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}
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async function readDimensions(filePath, extension) {
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const buffer = await readFile(filePath);
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if (buffer.length >= 4 && buffer.toString("ascii", 1, 4) === "PNG") {
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return readPngDimensions(buffer);
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}
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if (buffer.length >= 2 && buffer[0] === 0xff && buffer[1] === 0xd8) {
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return readJpegDimensions(buffer);
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}
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return null;
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}
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const failures = [];
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const files = await readdir(providerDir);
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for (const fileName of files) {
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const extension = extensionOf(fileName);
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if (!RASTER_EXTENSIONS.has(extension)) continue;
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const filePath = join(providerDir, fileName);
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const info = await stat(filePath);
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const dimensions = await readDimensions(filePath, extension);
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if (!dimensions) {
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if (info.size > 4 * 1024) {
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failures.push(`${fileName}: could not read image dimensions`);
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}
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continue;
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}
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const width = dimensions.width || 0;
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const height = dimensions.height || 0;
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if (info.size > MAX_RASTER_BYTES) {
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failures.push(
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`${fileName}: ${(info.size / 1024).toFixed(1)} KiB exceeds ${MAX_RASTER_BYTES / 1024} KiB`
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);
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}
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if (width > MAX_RASTER_DIMENSION || height > MAX_RASTER_DIMENSION) {
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failures.push(
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`${fileName}: ${width}x${height} exceeds ${MAX_RASTER_DIMENSION}px max dimension`
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);
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}
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}
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if (failures.length > 0) {
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console.error("Provider asset budget failed:");
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for (const failure of failures) console.error(`- ${failure}`);
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process.exit(1);
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}
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console.log("Provider asset budget passed.");
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