fix: improve error handling and output management in Terraform Valida…

…te action

action.yml

@@ -42,29 +42,37 @@ runs:
       id: validate
       shell: bash
       run: |
+        cd ${{ inputs.working-directory }}
         terraform validate
-        if [[ $? -ne 0 ]]; then
+        VALIDATE_EXIT_CODE=$?
+        if [[ $VALIDATE_EXIT_CODE -ne 0 ]]; then
           echo "Terraform validation failed"
           echo "is_valid=false" >> $GITHUB_OUTPUT
+          exit $VALIDATE_EXIT_CODE
+        else
+          echo "Terraform validation passed"
+          echo "is_valid=true" >> $GITHUB_OUTPUT
         fi
-        echo "Terraform validation passed"
-        echo "is_valid=true" >> $GITHUB_OUTPUT
 
     - name: Terraform Test
       id: test
       shell: bash
+      if: steps.validate.outcome == 'success'
       run: |
+        cd ${{ inputs.working-directory }}
         terraform test
-        if [[ $? -ne 0 ]]; then
+        TEST_EXIT_CODE=$?
+        if [[ $TEST_EXIT_CODE -ne 0 ]]; then
           echo "Terraform tests failed"
           echo "tests_passed=false" >> $GITHUB_OUTPUT
+        else
+          echo "Terraform tests passed"
+          echo "tests_passed=true" >> $GITHUB_OUTPUT
         fi
-        echo "Terraform tests passed"
-        echo "tests_passed=true" >> $GITHUB_OUTPUT
 
     - name: Set Outputs
       id: set_outputs
       shell: bash
       run: |
-        echo "is_valid=${{ steps.validate.outputs.is_valid }}" >> $GITHUB_ENV
-        echo "tests_passed=${{ steps.test.outputs.tests_passed }}" >> $GITHUB_ENV
+        echo "is_valid=$(cat $GITHUB_OUTPUT | grep is_valid | cut -d= -f2)" >> $GITHUB_OUTPUT
+        echo "tests_passed=$(cat $GITHUB_OUTPUT | grep tests_passed | cut -d= -f2)" >> $GITHUB_OUTPUT