Revert "feat: swapped from Docker to composite"

This reverts commit d821628, reversing
changes made to 184c91c.

Author: AlexanderMelde

Dockerfile

@@ -0,0 +1,16 @@
+FROM python:3
+
+LABEL "com.github.actions.name"="YAPF Python Code Formatting Check"
+LABEL "com.github.actions.description"="Run YAPF to check that your python code if correctly formatted."
+LABEL "com.github.actions.icon"="check-circle"
+LABEL "com.github.actions.color"="106a4e"
+LABEL "repository"="https://github.com/AlexanderMelde/yapf-action"
+LABEL "homepage"="https://github.com/AlexanderMelde/yapf-action"
+LABEL "maintainer"="Alexander Melde <[email protected]>"
+
+RUN pip install --upgrade pip
+RUN pip install yapf
+
+COPY entrypoint.sh /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]

action.yml

@@ -6,18 +6,6 @@ branding:
   icon: 'check-circle'
   color: 'green'
 
-inputs:
-  source-dir:
-    description: 'The folder containing the source files to format'
-    required: true
-    default: './'
-
 runs:
-  using: 'composite'
-  steps:
-    - id: install-yapf
-      run: pip install yapf
-      shell: bash
-    - id: invoke-yapf
-      run: yapf --diff --recursive ${{ inputs.source-dir }} $*
-      shell: bash
+  using: 'docker'
+  image: 'Dockerfile'

entrypoint.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+set -e
+echo "Checking formatting for $GITHUB_REPOSITORY"
+sh -c "yapf --diff --recursive $GITHUB_WORKSPACE $*"