Allow specifying a working directory

README.md

@@ -53,6 +53,7 @@ permissions:
 
 - `ruby-version` - If your project has a `.ruby-version` file, this Action will use that version of Ruby. If not, this will be forwarded to the [ruby/setup-ruby](https://github.com/ruby/setup-ruby) action, so it takes the same values.
 - `autofix` - If set to `false`, the action will not attempt to auto-fix any errors. Defaults to `true`.
+- `workdir` - If set the action will descend to this directory before running `bundle exec standardrb …`. Defaults to `.`.
 
 Example with options set:
 
@@ -62,6 +63,7 @@ Example with options set:
   with:
     ruby-version: '3.3'
     autofix: false
+    workdir: my/app/subdirectory
 ```
 
 ## Screenshots

action.yml

@@ -11,6 +11,9 @@ inputs:
     description: 'Whether autofixes should be committed back to the branch'
     required: false
     default: 'true'
+  WORKDIR:
+    description: "The directory from which to run the standardrb command. Default '.'"
+    default: '.'
 
 runs:
   using: composite
@@ -19,6 +22,9 @@ runs:
     - name: Checkout code
       uses: actions/checkout@v4
 
+    - name: Change to the workdir
+      run: pushd ${{ inputs.workdir }}
+
     - name: Check for .ruby-version file
       id: use_ruby_version_or_default
       shell: bash
@@ -66,6 +72,9 @@ runs:
         git push
         echo "::endgroup::"
 
+    - name: Change back to the root directory
+      run: popd
+
     - name: Fail the build if Standard Ruby failed
       shell: bash
       if: ${{ steps.standardrb.outcome == 'failure' }}