feat: Add support for custom working directory

Author: nlemoine

.github/actions/composer/action.yml

@@ -30,6 +30,11 @@ inputs:
     description: Composer configuration as a JSON formatted object.
     required: false
     type: string
+  WORKING_DIRECTORY:
+    description: The working directory where to run the static analysis.
+    default: '.'
+    required: false
+    type: string
 
 secrets:
   COMPOSER_AUTH_JSON:
@@ -57,3 +62,4 @@ runs:
       if: ${{ inputs.INSTALL_AND_CACHE == 'true' }}
       with:
         composer-options: ${{ inputs.COMPOSER_ARGS }}
+        working-directory: ${{ inputs.WORKING_DIRECTORY }}

.github/workflows/php-static-analysis.yml

@@ -34,6 +34,7 @@ jobs:
     runs-on: ubuntu-latest
     defaults:
       run:
+        shell: bash
         working-directory: ${{ inputs.WORKING_DIRECTORY }}
     env:
       COMPOSER_AUTH: '${{ secrets.COMPOSER_AUTH_JSON }}'
@@ -50,6 +51,7 @@ jobs:
           PHP_VERSION: ${{ inputs.PHP_VERSION }}
           PHP_TOOLS: "composer, cs2pr"
           COMPOSER_CONFIG: ${{ vars.COMPOSER_CONFIG_JSON }}
+          WORKING_DIRECTORY: ${{ inputs.WORKING_DIRECTORY }}
 
       - name: Get changed files
         id: changed-files