[feat] support custom cache dir

README.md

@@ -5,7 +5,7 @@ A library for managing deno native plugin dependencies
 [![tag](https://img.shields.io/github/tag/manyuanrong/deno-plugin-prepare.svg)](https://github.com/manyuanrong/deno-plugin-prepare)
 [![Build Status](https://github.com/manyuanrong/deno-plugin-prepare/workflows/ci/badge.svg?branch=master)](https://github.com/manyuanrong/deno-plugin-prepare/actions)
 [![license](https://img.shields.io/github/license/manyuanrong/deno-plugin-prepare.svg)](https://github.com/manyuanrong/deno-plugin-prepare)
-[![tag](https://img.shields.io/badge/deno-v1.0.0-green.svg)](https://github.com/denoland/deno)
+[![tag](https://img.shields.io/badge/deno-v1.4.0-green.svg)](https://github.com/denoland/deno)
 
 ### Why do you need this module?
 
@@ -24,8 +24,13 @@ The API needs to provide some plug-in information, including the name of the plu
 ```ts
 import {
   prepare,
+<<<<<<< HEAD
   PrepareOptions,
 } from "https://deno.land/x/plugin_prepare@v0.6.0/mod.ts";
+=======
+  PerpareOptions,
+} from "https://deno.land/x/plugin_prepare@v0.8.0/mod.ts";
+>>>>>>> [feat] support custom cache dir
 
 const releaseUrl =
   "https://github.com/manyuanrong/deno-plugin-prepare/releases/download/plugin_bins";
@@ -59,6 +64,10 @@ console.log(response);
 Deno.close(rid);
 ```
 
+### Custom cache path
+
+By default, binary files will be cached in the `.deno_plugins` directory. In some cases, we need to store in other locations, you can set the `DENO_PLUGIN_DIR` environment variable
+
 ### TODOs
 
 - [x] Caching binary files with URL hash (multi-version coexistence)

mod.ts

@@ -1,4 +1,4 @@
-import { exists, createHash, log, path } from "./deps.ts";
+import { createHash, exists, log, path } from "./deps.ts";
 
 const os = Deno.build.os;
 
@@ -14,22 +14,26 @@ export interface PrepareOptions {
   name: string;
   printLog?: boolean;
   checkCache?: boolean;
+  cacheDir?: string;
   urls: {
     darwin?: string;
     linux?: string;
     windows?: string;
   };
 }
 
+const defaultCacheDir = Deno.env.get("DENO_PLUGIN_DIR") ?? ".deno_plugins";
+
 export async function download(options: PrepareOptions): Promise<string> {
   const { name, urls, checkCache = true } = options;
 
+  const cacheDir = options.cacheDir ?? defaultCacheDir;
   const remoteUrl = urls[os];
   const md5 = createHash("md5");
   md5.update(remoteUrl + pluginSuffix);
   const remoteHash = md5.toString("hex");
   const cacheFileName = `${name}_${remoteHash}${pluginSuffix}`;
-  const localPath = path.resolve(".deno_plugins", cacheFileName);
+  const localPath = path.resolve(cacheDir, cacheFileName);
 
   if (!(await exists(localPath)) || !checkCache) {
     if (!remoteUrl) {
@@ -38,7 +42,7 @@ export async function download(options: PrepareOptions): Promise<string> {
       );
     }
 
-    await Deno.mkdir(".deno_plugins", { recursive: true });
+    await Deno.mkdir(cacheDir, { recursive: true });
 
     if (remoteUrl.startsWith("file://")) {
       const fromPath = path.resolve(remoteUrl.slice(7));

test.ts

@@ -1,5 +1,5 @@
 import { exists } from "./deps.ts";
-import { assert, serve, serveFile, resolve } from "./test_deps.ts";
+import { assert, resolve, serve, serveFile } from "./test_deps.ts";
 
 const pluginDir = ".deno_plugins";
 
@@ -28,6 +28,7 @@ Deno.test("testPrepareLocal", async () => {
       "run",
       "--allow-read",
       "--allow-write",
+      "--allow-env",
       "--allow-plugin",
       "--unstable",
       "./tests/local.ts",
@@ -45,6 +46,7 @@ Deno.test("testPrepareLocal", async () => {
       "run",
       "--allow-read",
       "--allow-write",
+      "--allow-env",
       "--allow-plugin",
       "--unstable",
       "./tests/local.ts",
@@ -84,6 +86,7 @@ Deno.test("testPrepareRemote", async () => {
       "deno",
       "run",
       "--allow-read",
+      "--allow-env",
       "--allow-write",
       "--allow-plugin",
       "--allow-net",
@@ -103,6 +106,7 @@ Deno.test("testPrepareRemote", async () => {
       "deno",
       "run",
       "--allow-read",
+      "--allow-env",
       "--allow-write",
       "--allow-plugin",
       "--allow-net",