feat: support downloading a sub folder

BREAKING CHANGE:

Removed Deno/Go support

README.md

@@ -10,24 +10,13 @@
 
 ## Usage
 
-With Node.js:
-
 ```bash
 # NPM
 npx aho user/repo [destination]
 # PNPM
 pnpm dlx aho user/repo [destination]
 ```
 
-With Deno:
-
-```bash
-deno install --allow-net --allow-read --allow-write --allow-run \
-    https://denopkg.com/egoist/aho@latest/aho.ts
-
-aho user/repo [destination]
-```
-
 ## Flags
 
 ### `aho <repo> [destination]`
@@ -36,14 +25,12 @@ Generate a project from `<repo>` to `[destination]`, destination defaults to cur
 
 `<repo>` is in the format of `user/repo#branch_or_tag`, currently only GitHub repositories are supported. `#branch_or_tag` is optional.
 
+You can also download a sub folder from the repo: `user/repo/sub_folder#dev`.
+
 ### `--force`
 
 By default the command would abort if destination is not empty, use `--force` if you want to empty the dir before writing to it.
 
-### `-p, --path <path>`
-
-Extract a sub directory from `<repo>` to `[destination]`.
-
 ## Sponsors
 
 [![sponsors](https://sponsors-images.egoist.sh/sponsors.svg)](https://github.com/sponsors/egoist)

package.json

@@ -6,16 +6,14 @@
     "access": "public"
   },
   "type": "module",
-  "bin": "./cli-node.js",
+  "bin": "./dist/cli.js",
   "files": [
-    "dist",
-    "/cli-node.js"
+    "dist"
   ],
   "scripts": {
-    "build": "rm -rf dist && tsup src/index.ts --format esm && npm run build-deno",
+    "build": "rm -rf dist && tsup src/cli.ts --format esm --target node14 --minify",
     "test": "echo lol",
-    "prepublishOnly": "npm run build",
-    "build-deno": "tsno scripts/build-deno.ts"
+    "prepublishOnly": "npm run build"
   },
   "license": "MIT",
   "devDependencies": {

deno/index.ts → src/cli.ts

@@ -1,22 +1,18 @@
+#!/usr/bin/env node
+import { cac } from 'cac'
 import {
-  cac,
   downloadFile,
-  ensureDirSync,
   existsSync,
-  getTempDir,
-  isEmptyDirSync,
-  resolvePath,
-  runCommand,
-  fetchJSON,
   args,
   exit,
   getOwnVersion,
-  moveSync,
-  emptyDirSync,
-  joinPath,
-} from './deno/lib.ts'
+  isEmptyDirSync,
+  resolvePath,
+  getTempDir,
+} from './lib'
+import { PrettyError, parseRepo, getDefaultBranchFromApi, extract } from './'
 
-export const start = async () => {
+const start = async () => {
   const cli = cac('aho')
 
   cli
@@ -25,13 +21,13 @@ export const start = async () => {
       '-f, --force',
       `Force override desitination directory even if it's not empty`,
     )
-    .option('-p, --path <path>', `Only extract a sub path within the repo`)
     .action(async (_repo, desitination, flags) => {
       if (!_repo) {
         throw new PrettyError('No repo provided')
       }
 
-      const { repo, tag } = parseRepo(_repo)
+      const { owner, repoName, subpath, tag } = parseRepo(_repo)
+      const repo = `${owner}/${repoName}`
 
       desitination = resolvePath(desitination || '.')
 
@@ -45,7 +41,9 @@ export const start = async () => {
         )
       }
 
-      console.log(`Downloading ${repo}`)
+      console.log(
+        `Downloading ${repo} ${subpath ? `(sub folder: ${subpath})` : ''}`,
+      )
 
       const ref = tag || (await getDefaultBranchFromApi(repo))
 
@@ -55,7 +53,7 @@ export const start = async () => {
         tempTarFile,
       )
       console.log(`Generating to ${desitination}`)
-      await extract(tempTarFile, desitination, { path: flags.path })
+      await extract(tempTarFile, desitination, { path: subpath })
     })
 
   cli.version(getOwnVersion())
@@ -74,33 +72,4 @@ export const start = async () => {
   }
 }
 
-class PrettyError extends Error {
-  constructor(message: string) {
-    super(message)
-    this.name = this.constructor.name
-    if (typeof Error.captureStackTrace === 'function') {
-      Error.captureStackTrace(this, this.constructor)
-    } else {
-      this.stack = new Error(message).stack
-    }
-  }
-}
-
-async function extract(from: string, to: string, { path }: { path?: string }) {
-  const tempDir = getTempDir() + `/aho_temp_${Date.now()}`
-  ensureDirSync(tempDir)
-  const cmd = ['tar', 'xvzf', from, '-C', tempDir, '--strip-components', '1']
-  await runCommand(cmd)
-  emptyDirSync(to)
-  moveSync(path ? joinPath(tempDir, path) : tempDir, to)
-}
-
-function parseRepo(input: string) {
-  const [repo, tag] = input.split('#')
-  return { repo, tag }
-}
-
-async function getDefaultBranchFromApi(repo: string): Promise<string> {
-  const data = await fetchJSON(`https://api.github.com/repos/${repo}`)
-  return data.default_branch
-}
+start()