1 files changed, 35 insertions, 0 deletions
diff --git a/.github/bin/download.mjs b/.github/bin/download.mjs
new file mode 100644
index 0000000..3a6d919
--- /dev/null
+++ b/.github/bin/download.mjs
@@ -0,0 +1,35 @@
+import fs from 'fs/promises';
+import path from 'node:path';
+import { spawn } from 'child_process';
+import { tmpdir } from 'node:os';
+
+export async function createTempDir() {
+	const name = await fs.mkdtemp(path.join(tmpdir(), 'normalize.css-'));
+	return [name, async () => fs.rm(name, { recursive: true, force: true })];
+}
+
+export async function curlDownloadAndExtract(url, dir) {
+	await fs.mkdir(dir, { recursive: true });
+
+	const curl = spawn('curl', [url, '-o', path.join(dir, 'archive.tgz')]);
+	await new Promise((resolve, reject) => {
+		curl.on('close', (code) => {
+			if (code === 0) {
+				resolve();
+			} else {
+				reject(new Error(`curl exited with code ${code}`));
+			}
+		});
+	});
+
+	const unzip = spawn('tar', ['-xzf', path.join(dir, 'archive.tgz'), '-C', dir, '--strip-components=1']);
+	await new Promise((resolve, reject) => {
+		unzip.on('close', (code) => {
+			if (code === 0) {
+				resolve();
+			} else {
+				reject(new Error(`tar exited with code ${code}`));
+			}
+		});
+	});
+}