feat(utils): add download-git-directory utility.

Signed-off-by: Braden Mars <bradenmars@bradenmars.me>

packages/utils/src/download-git-dir.ts

@@ -0,0 +1,47 @@
+import path from 'node:path'
+import os from 'node:os'
+import {slash, p} from '@antfu/utils'
+import listGitDir from 'list-github-dir-content'
+import consola from 'consola'
+import fse from 'fs-extra'
+import chalk from 'chalk'
+import got from 'got'
+
+interface GitDirOptions {
+	ref?: string
+	token?: string
+	dest?: string
+}
+
+export async function downloadGitDir(
+	repoOwner: string,
+	repoName: string,
+	repoPath: string,
+	options: GitDirOptions = {},
+) {
+	options.ref ??= 'master'
+	options.dest ??= path.join(os.tmpdir(), repoName)
+	const {dest, ref, token} = options
+	const destPath = slash(dest)
+	const files = await listGitDir.viaContentsApi({
+		token: token ?? '',
+		user: repoOwner,
+		repository: repoName,
+		directory: repoPath,
+		ref,
+		getFullData: true,
+	})
+
+	await p(files).map(
+		async ({download_url, path: filePath}: listGitDir.FullFileResult) => {
+			const relPath = path.relative(repoPath, filePath)
+			const outPath = slash(path.join(destPath, relPath))
+			consola.info(
+				`${chalk.bold.whiteBright(
+					'Downloading file:',
+				)} ${relPath} => ${outPath}`,
+			)
+			await fse.outputFile(outPath, await got.get(download_url).buffer())
+		},
+	)
+}