Allow black's Github action params overriding. (#1755)

* Allow default params overriding.

* Update: docs and action.yaml.

* The second contirbution, add my name to authors.md

* Correct docs `with.args` example.

* Just to rerun the Travis jobs.

* chmod 755

README.md

@@ -574,6 +574,7 @@ Multiple contributions by:
 - [Gregory P. Smith](mailto:greg@krypto.org)
 - Gustavo Camargo
 - hauntsaninja
+- [Hadi Alqattan](mailto:alqattanhadizaki@gmail.com)
 - [Heaford](mailto:dan@heaford.com)
 - [Hugo Barrera](mailto::hugo@barrera.io)
 - Hugo van Kemenade

action.yml

@@ -6,4 +6,4 @@ branding:
   icon: "check-circle"
 runs:
   using: "docker"
-  image: "Dockerfile"
+  image: "action/Dockerfile"

action/Dockerfile

@@ -5,4 +5,6 @@ ENV PYTHONUNBUFFERED 1
 
 RUN pip install --upgrade --no-cache-dir black
 
-ENTRYPOINT /usr/local/bin/black --check --diff  .
+COPY entrypoint.sh /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]

action/entrypoint.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+set -e
+
+if [ $# -eq 0 ]; then
+    # Default (if no args provided).
+    sh -c "black . --check --diff"
+else
+    # Custom args.
+    sh -c "black $*"
+fi

docs/authors.md

@@ -69,6 +69,7 @@ Multiple contributions by:
 - [Gregory P. Smith](mailto:greg@krypto.org)
 - Gustavo Camargo
 - hauntsaninja
+- [Hadi Alqattan](mailto:alqattanhadizaki@gmail.com)
 - [Heaford](mailto:dan@heaford.com)
 - [Hugo Barrera](mailto::hugo@barrera.io)
 - Hugo van Kemenade

docs/github_actions.md

@@ -15,5 +15,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
-      - uses: psf/black@stable
+      - uses: psf/black@stable # the default is equivalent to `black . --diff --check`.
+        with: # (optional - override the default parameters).
+          args: ". --diff --check"
 ```