Update: Revise README to clarify usage and enhance examples for GitHub Release Action

README.md

@@ -1,37 +1,71 @@
 # Setup GitHub Release Action
 
-This GitHub/Gitea Action downloads a tool from a GitHub release based on platform-aware selection rules and adds it to the system PATH.
+This GitHub/Gitea Action downloads a tool from a GitHub release, extracts it, automatically finds the executable, and adds it to the system PATH. It supports platform-aware selection, recursive binary search, and tool caching.
+
+## Features
+
+- **Automatic Platform Detection**: Detects OS and Architecture to find the right asset.
+- **Recursive Binary Search**: Finds the executable even if it's nested deep inside an archive.
+- **Tool Caching**: Uses the standard runner tool cache to speed up subsequent runs.
+- **Flexible Matching**: Supports literal names, regex patterns, and custom file types.
 
 ## Usage
 
 ### Simple (Automatic Selection)
-The action will automatically detect your OS and ARCH and look for a matching archive.
+
+The action will automatically detect your OS (Linux, Windows, macOS) and architecture (x64, ARM64) and look for a matching archive. It will search for a binary named after the repository.
+
 ```yaml
-- uses: ./
+- name: Install Hugo
+  uses: koszewscy/setup-github-release@v1
   with:
-    repo-name: 'gohugoio/hugo'
+    repo-name: 'go-acme/lego'
 ```
 
-### Regex Search
-You can use a regex pattern (prefixed with `~`) to narrow down the asset.
+> **Note:** RClone is an example of a project that provides a binary in a subdirectory inside the archive. The action will find it automatically.
+
+### Advanced Asset Selection
+
+For projects with multiple binary versions, you can use a regex pattern (prefixed with `~`) to narrow down the asset. Hugo is an example where you have to choose between one of the three versions: standard, extended, or extended with deploy support.
+
 ```yaml
-- uses: ./
+- name: Install Extended Hugo
+  uses: koszewscy/setup-github-release@v1
   with:
     repo-name: 'gohugoio/hugo'
-    file-name: '~hugo_extended'
+    file-name: '~hugo_extended_[^a-z]' # Regex to match extended version
 ```
 
-### Custom File Type
+### Specific Binary Finding
+
+If the binary name is different from the repository name, like in the example of GitHub CLI, you can specify the `binary-name` input to locate the correct executable inside the downloaded asset:
+
 ```yaml
-- uses: ./
+- name: Install GitHub CLI
+  uses: koszewscy/setup-github-release@v1
   with:
-    repo-name: 'some/repo'
-    file-type: 'package' # Matches .deb, .rpm, .pkg
+    repo-name: 'cli/cli'
+    binary-name: 'gh' # Searches for 'gh' (or 'gh.exe') inside the extracted release
+```
+
+### Debugging Archive Content
+
+If you are unsure how the binary is named, use the `debug` flag to list all files in the unpacked asset, or download the asset manually to inspect its structure.
+
+```yaml
+- uses: koszewscy/setup-github-release@v1
+  with:
+    repo-name: 'owner/repo'
+    debug: true
 ```
 
 ## Inputs
 
 - `repo-name` (required): GitHub repository in `owner/repo` format.
 - `file-name` (optional): Literal name or regex pattern (if starts with `~`) to match the asset.
-- `file-type` (optional, default: `archive`): Predefined keywords `archive`, `package`, or a custom regex extension pattern.
-- `token` (optional): GitHub token for authentication.
+- `binary-name` (optional): The name or regex pattern (if starts with `~`) of the binary to find. Defaults to the repository name.
+- `file-type` (optional, default: `archive`): Predefined keywords `archive`, `package`, or a custom regex pattern.
+- `debug` (optional, default: `false`): Set to `true` to log the contents of the unpacked asset.
+- `token` (optional): GitHub token for authentication (defaults to `${{ github.token }}` that is an equivalent of `${{ secrets.GITHUB_TOKEN }}`). Use `${{ secrets.GITEA_TOKEN }}` for Gitea, or create a personal access token.
+
+> **Important:** Default authentication will will only work if the action is used within GitHub workflow. For Gitea, you must provide a token explicitly.