Create action:main

new/main/node_version/releases/action:main

@@ -0,0 +1,214 @@
+# Advanced usage
+
+## Check latest version
+
+The `check-latest` flag defaults to `false`. When set to `false`, the action will first check the local cache for a semver match. If unable to find a specific version in the cache, the action will attempt to download a version of Node.js. It will pull LTS versions from [node-versions releases](https://github.com/actions/node-versions/releases) and on miss or failure will fall back to the previous behavior of downloading directly from [node dist](https://nodejs.org/dist/). Use the default or set `check-latest` to `false` if you prefer stability and if you want to ensure a specific version of Node.js is always used.
+
+If `check-latest` is set to `true`, the action first checks if the cached version is the latest one. If the locally cached version is not the most up-to-date, a version of Node.js will then be downloaded. Set `check-latest` to `true` it you want the most up-to-date version of Node.js to always be used.
+
+> Setting `check-latest` to `true` has performance implications as downloading versions of Node is slower than using cached versions.
+
+```yaml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-node@v2
+  with:
+    node-version: '14'
+    check-latest: true
+- run: npm install
+- run: npm test
+```
+
+## Node version file
+  
+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. 
+See [supported version syntax](https://github.com/actions/setup-node#supported-version-syntax) 
+> The action will search for the node version file relative to the repository root.
+
+```yaml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-node@v2
+  with:
+    node-version-file: '.nvmrc'
+- run: npm install
+- run: npm test
+```
+
+## Architecture
+
+You can use any of the [supported operating systems](https://docs.github.com/en/actions/reference/virtual-environments-for-github-hosted-runners), and the compatible `architecture` can be selected using `architecture`. Values are `x86`, `x64`, `arm64`, `armv6l`, `armv7l`, `ppc64le`, `s390x` (not all of the architectures are available on all platforms).
+
+When using `architecture`, `node-version` must be provided as well.
+```yaml
+jobs:
+  build:
+    runs-on: windows-latest
+    name: Node sample
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: '14'
+          architecture: 'x64' # optional, x64 or x86. If not specified, x64 will be used by default
+      - run: npm install
+      - run: npm test
+```
+
+## Caching packages dependencies
+The action follows [actions/cache](https://github.com/actions/cache/blob/main/examples.md#node---npm) guidelines, and caches global cache on the machine instead of `node_modules`, so cache can be reused between different Node.js versions.
+
+**Caching yarn dependencies:**  
+Yarn caching handles both yarn versions: 1 or 2.
+```yaml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-node@v2
+  with:
+    node-version: '14'
+    cache: 'yarn'
+- run: yarn install
+- run: yarn test
+```
+
+**Caching pnpm (v6.10+) dependencies:**
+```yaml
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+# NOTE: pnpm caching support requires pnpm version >= 6.10.0
+
+steps:
+- uses: actions/checkout@v2
+- uses: pnpm/action-setup@646cdf48217256a3d0b80361c5a50727664284f2
+  with:
+    version: 6.10.0
+- uses: actions/setup-node@v2
+  with:
+    node-version: '14'
+    cache: 'pnpm'
+- run: pnpm install
+- run: pnpm test
+```
+
+**Using wildcard patterns to cache dependencies**
+```yaml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-node@v2
+  with:
+    node-version: '14'
+    cache: 'npm'
+    cache-dependency-path: '**/package-lock.json'
+- run: npm install
+- run: npm test
+```
+
+**Using a list of file paths to cache dependencies**
+```yaml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-node@v2
+  with:
+    node-version: '14'
+    cache: 'npm'
+    cache-dependency-path: |
+      server/app/package-lock.json
+      frontend/app/package-lock.json
+- run: npm install
+- run: npm test
+```
+
+## Multiple Operating Systems and Architectures
+
+```yaml
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
+        node_version:
+          - 12
+          - 14
+          - 16
+        architecture:
+          - x64
+        # an extra windows-x86 run:
+        include:
+          - os: windows-2016
+            node_version: 12
+            architecture: x86
+    name: Node ${{ matrix.node_version }} - ${{ matrix.architecture }} on ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup node
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node_version }}
+          architecture: ${{ matrix.architecture }}
+      - run: npm install
+      - run: npm test
+```
+
+## Publish to npmjs and GPR with npm
+```yaml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-node@v2
+  with:
+    node-version: '14.x'
+    registry-url: 'https://registry.npmjs.org'
+- run: npm install
+- run: npm publish
+  env:
+    NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+- uses: actions/setup-node@v2
+  with:
+    registry-url: 'https://npm.pkg.github.com'
+- run: npm publish
+  env:
+    NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+```
+
+## Publish to npmjs and GPR with yarn
+```yaml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-node@v2
+  with:
+    node-version: '14.x'
+    registry-url: <registry url>
+- run: yarn install
+- run: yarn publish
+  env:
+    NODE_AUTH_TOKEN: ${{ secrets.YARN_TOKEN }}
+- uses: actions/setup-node@v2
+  with:
+    registry-url: 'https://npm.pkg.github.com'
+- run: yarn publish
+  env:
+    NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+```
+
+## Use private packages
+```yaml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-node@v2
+  with:
+    node-version: '14.x'
+    registry-url: 'https://registry.npmjs.org'
+# Skip post-install scripts here, as a malicious
+# script could steal NODE_AUTH_TOKEN.
+- run: npm install --ignore-scripts
+  env:
+    NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+# `npm rebuild` will run all those post-install scripts for us.
+- run: npm rebuild && npm run prepare --if-present
+```