adds path to error output

* fix grammar in README & Advance usage docs
* update example in action.yml

README.md

@@ -1,4 +1,5 @@
 # setup-node
+
 <p align="left">
   <a href="https://github.com/actions/setup-node/actions?query=workflow%3Abuild-test"><img alt="build-test status" src="https://github.com/actions/setup-node/workflows/build-test/badge.svg"></a> <a href="https://github.com/actions/setup-node/actions?query=workflow%3Aversions"><img alt="versions status" src="https://github.com/actions/setup-node/workflows/versions/badge.svg"></a> <a href="https://github.com/actions/setup-node/actions?query=workflow%3Aproxy"><img alt="proxy status" src="https://github.com/actions/setup-node/workflows/proxy/badge.svg"></a> 
 </p>
@@ -71,7 +72,6 @@ steps:
 - run: npm test
 ```
 
-
 ## Matrix Testing:
 ```yaml
 jobs:
@@ -93,7 +93,7 @@ jobs:
 ## Advanced usage
 
 1. [Check latest version](docs/advanced-usage.md#check-latest-version)
-2. [Using a node version file](docs/advanced-usage.md#Node-version-file)
+2. [Using a node version file](docs/advanced-usage.md#node-version-file)
 3. [Using different architectures](docs/advanced-usage.md#architecture)
 4. [Caching packages dependencies](docs/advanced-usage.md#caching-packages-dependencies)
 5. [Using multiple operating systems and architectures](docs/advanced-usage.md#multiple-operating-systems-and-architectures)

__tests__/installer.test.ts

@@ -624,8 +624,7 @@ describe('setup-node', () => {
 
     it('should throw an error if node-version-file is not found', async () => {
       const versionFile = '.nvmrc';
-      const expectedVersionSpec = '14';
+      const versionFilePath = path.join(__dirname, '..', versionFile);
-      process.env['GITHUB_WORKSPACE'] = path.join(__dirname);
       inputs['node-version-file'] = versionFile;
 
       inSpy.mockImplementation(name => inputs[name]);
@@ -641,7 +640,7 @@ describe('setup-node', () => {
       expect(existsSpy).toHaveReturnedWith(false);
       expect(parseNodeVersionSpy).not.toHaveBeenCalled();
       expect(cnSpy).toHaveBeenCalledWith(
-        `::error::The specified node version file does not exist${osm.EOL}`
+        `::error::The specified node version file at: ${versionFilePath} does not exist${osm.EOL}`
       );
     });
   });

action.yml

@@ -8,7 +8,7 @@ inputs:
   node-version:
     description: 'Version Spec of the version to use.  Examples: 12.x, 10.15.1, >=10.15.0'
   node-version-file:
-    description: 'File containing the version Spec of the version to use.  Examples: .nvmrc'
+    description: 'File containing the version Spec of the version to use.  Examples: .nvmrc, .node-version, .n-node-version'
   architecture:
     description: 'Target architecture for Node to use. Examples: x86, x64. Will use system architecture by default.'
   check-latest:

dist/setup/index.js

@@ -7014,7 +7014,7 @@ function resolveVersionInput() {
     if (versionFileInput) {
         const versionFilePath = path.join(process.env.GITHUB_WORKSPACE, versionFileInput);
         if (!fs_1.default.existsSync(versionFilePath)) {
-            throw new Error('The specified node version file does not exist');
+            throw new Error(`The specified node version file at: ${versionFilePath} does not exist`);
         }
         version = installer.parseNodeVersionFile(fs_1.default.readFileSync(versionFilePath, 'utf8'));
         core.info(`Resolved ${versionFileInput} as ${version}`);

docs/advanced-usage.md

@@ -21,9 +21,9 @@ steps:
 
 ## Node version file
   
-The `node-version-file` input accepts path to file containing the version of Node.js used by project, for example `.nvmrc`. If both the `node-version` and the `node-version-file` inputs are provided the `node-version` input is used. 
+The `node-version-file` input accepts a path to a file containing the version of Node.js to be used by a project, for example `.nvmrc` or `.node-version`. If both the `node-version` and the `node-version-file` inputs are provided then the `node-version` input is used. 
-You can check [supported version syntax](https://github.com/actions/setup-node#supported-version-syntax)  
+See [supported version syntax](https://github.com/actions/setup-node#supported-version-syntax) 
-> The action will search for the node version file relative to repository root.
+> The action will search for the node version file relative to the repository root.
 
 ```yaml
 steps:

src/main.ts

@@ -93,7 +93,9 @@ function resolveVersionInput(): string {
       versionFileInput
     );
     if (!fs.existsSync(versionFilePath)) {
-      throw new Error('The specified node version file does not exist');
+      throw new Error(
+        `The specified node version file at: ${versionFilePath} does not exist`
+      );
     }
     version = installer.parseNodeVersionFile(
       fs.readFileSync(versionFilePath, 'utf8')