Method toBufferWithSips

src/image-utils.ts:66–102

()

	}

	private toBufferWithSips(): Buffer {
		const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), "image-"));
		const inputFile = path.join(tempDir, "input");
		const outputFile = path.join(tempDir, `output.${this.newFormat === "jpg" ? "jpg" : "png"}`);

		try {
			fs.writeFileSync(inputFile, this.buffer);

			const args = ["-s", "format", this.newFormat === "jpg" ? "jpeg" : "png"];
			if (this.newFormat === "jpg") {
				args.push("-s", "formatOptions", this.qualityToSips(this.jpegOptions.quality));
			}

			args.push("-Z", `${this.newWidth}`);
			args.push("--out", outputFile);
			args.push(inputFile);

			trace(`Running sips command: /usr/bin/sips ${args.join(" ")}`);
			const proc = spawnSync("/usr/bin/sips", args, {
				maxBuffer: 8 * 1024 * 1024
			});

			if (proc.status !== 0) {
				throw new Error(`Sips failed with status ${proc.status}`);
			}

			const outputBuffer = fs.readFileSync(outputFile);
			trace("Sips returned buffer of size: " + outputBuffer.length);
			return outputBuffer;
		} finally {
			try {
				fs.rmSync(tempDir, { recursive: true, force: true });
			} catch (error) {
				// Ignore cleanup errors
			}
		}
	}

	private toBufferWithImageMagick(): Buffer {
		const magickArgs = ["-", "-resize", `${this.newWidth}x`, "-quality", `${this.jpegOptions.quality}`, `${this.newFormat}:-`];