From 538c093b9ccd453fe9037d1a36b00524fd7fca16 Mon Sep 17 00:00:00 2001
From: Xuan Wang <xuanwn@google.com>
Date: Fri, 17 Nov 2023 11:09:48 -0800
Subject: [PATCH] Add black-check to workflow (#3)

* Test workflow

* Try add balck action

* Enable for pull request

* Change triger back
---
 .github/workflows/psm-interop.yaml | 13 +++++++++++++
 black.toml                         | 16 ++++++++++++++++
 2 files changed, 29 insertions(+)
 create mode 100644 black.toml

diff --git a/.github/workflows/psm-interop.yaml b/.github/workflows/psm-interop.yaml
index 6a925c66..eee81fb7 100644
--- a/.github/workflows/psm-interop.yaml
+++ b/.github/workflows/psm-interop.yaml
@@ -1,5 +1,9 @@
 name: PSM Interop
 
+env:
+  # Force the stdout and stderr streams to be unbuffered
+  PYTHONUNBUFFERED: 1
+
 on:
   pull_request:
   push:
@@ -72,3 +76,12 @@ jobs:
       - name: "Run unit tests"
         if: ${{ steps.paths_filter.outputs.psm_interop_src == 'true' }}
         run: python -m tests.unit
+
+  black-check:
+     runs-on: ubuntu-latest
+     steps:
+        - uses: actions/checkout@v4
+        - uses: psf/black@stable
+          with:
+             options: "--check --config black.toml"
+             version: "23.3.0"
diff --git a/black.toml b/black.toml
new file mode 100644
index 00000000..2c6f5325
--- /dev/null
+++ b/black.toml
@@ -0,0 +1,16 @@
+[tool.black]
+line-length = 80
+target-version = [
+  "py37",
+  "py38",
+  "py39",
+  "py310",
+  "py311",
+]
+
+[tool.isort]
+profile = "black"
+line_length = 80
+single_line_exclusions = ["typing"]
+force_single_line = true
+force_sort_within_sections = true