From 5b10f59a0f149c46e6f3fde1383a5ed4fae5182b Mon Sep 17 00:00:00 2001
From: Maciej Brencz <maciej.brencz@gmail.com>
Date: Thu, 29 Oct 2020 17:05:25 +0100
Subject: [PATCH] CI: cache pip dependencies

---
 .github/workflows/pythonapp.yml | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/pythonapp.yml b/.github/workflows/pythonapp.yml
index 742e82e6..c445dc48 100644
--- a/.github/workflows/pythonapp.yml
+++ b/.github/workflows/pythonapp.yml
@@ -10,8 +10,7 @@ on:
     branches: [ master ]
 
 jobs:
-  build:
-
+  test:
     runs-on: ubuntu-latest
 
     steps:
@@ -20,6 +19,20 @@ jobs:
       uses: actions/setup-python@v1
       with:
         python-version: 3.8
+
+    # https://github.com/actions/cache/blob/main/examples.md#using-pip-to-get-cache-location
+    - name: Get pip cache dir
+      id: pip-cache
+      run: |
+        echo "::set-output name=dir::$(pip cache dir)"
+    - name: pip cache
+      uses: actions/cache@v2
+      with:
+        path: ${{ steps.pip-cache.outputs.dir }}
+        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt', '**/setup.py') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip