Update default publish directory logic

.gitignore

@@ -1,2 +1,3 @@
 node_modules
 netlify-plugin-ttl-cache*.tgz
+.idea

README.md

@@ -36,7 +36,7 @@ _Build output directory._
 
 **type:** `string`
 
-**default:** `"build"`
+**default:** The "Publish directory" provided in the Build settings of your Netlify Deployment 
 
 ### ttl
 

manifest.yml

@@ -1,8 +1,7 @@
 name: netlify-plugin-ttl-cache
 inputs:
   - name: path
-    description: Path of build output
-    default: "build"
+    description: Path of build output, defaults to using the publish directory defined in the Build settings of Netlify
   - name: ttl
     description: Number of days to keep old assets
     default: 90

package.json

@@ -1,6 +1,6 @@
 {
   "name": "netlify-plugin-ttl-cache",
-  "version": "1.0.2",
+  "version": "2.0.0",
   "description": "A Netlify plugin for persisting immutable build assets across releases.",
   "keywords": [
     "netlify",

src/index.js

@@ -4,16 +4,18 @@ const { getDaysApart, getDirFilenames, addTrailingSlash } = require("./utils");
 const TMP_CACHE_DIR = ".netlify-plugin-ttl-cache";
 
 /** Get old cache and prepare files. */
-const onPreBuild = async ({ utils, inputs }) => {
+const onPreBuild = async ({ constants, utils, inputs }) => {
+  const path = inputs.path || constants.PUBLISH_DIR;
+
   // Restore build cache
-  const hasCache = await utils.cache.restore(inputs.path);
+  const hasCache = await utils.cache.restore(path);
 
   if (!hasCache) {
     return;
   }
 
   // Remove files that have passed ttl threshold or match exclude regex
-  const files = await getDirFilenames(inputs.path);
+  const files = await getDirFilenames(path);
   const today = new Date();
   const exclude = new RegExp(inputs.exclude);
   await Promise.all(
@@ -26,23 +28,25 @@ const onPreBuild = async ({ utils, inputs }) => {
   );
 
   // Move to temporary directory to be restored post-build
-  await utils.run("cp", ["-r", inputs.path, TMP_CACHE_DIR]);
+  await utils.run("cp", ["-r", path, TMP_CACHE_DIR]);
 };
 
 /** Restore cached files along with latest build assets (without replacement). */
-const onPostBuild = async ({ utils, inputs }) => {
+const onPostBuild = async ({ constants, utils, inputs }) => {
+  const path = inputs.path || constants.PUBLISH_DIR
+
   if (await stat(TMP_CACHE_DIR).catch(() => false)) {
     await utils.run("rsync", [
       "-r",
       "--ignore-existing",
       addTrailingSlash(TMP_CACHE_DIR),
-      addTrailingSlash(inputs.path),
+      addTrailingSlash(path),
     ]);
     await rmdir(TMP_CACHE_DIR, { recursive: true });
   }
 
   // Save new cache
-  await utils.cache.save(inputs.path);
+  await utils.cache.save(path);
 };
 
 module.exports = {