Merge pull request #185 from iangreenleaf/elixir-caching

Add caching to Elixir workflow

ci/elixir.yml

@@ -9,6 +9,7 @@ on:
 jobs:
   build:
 
+    name: Build and test
     runs-on: ubuntu-latest
 
     steps:
@@ -18,6 +19,12 @@ jobs:
       with:
         elixir-version: '1.10.3' # Define the elixir version [required]
         otp-version: '22.3' # Define the OTP version [required]
+    - name: Restore dependencies cache
+      uses: actions/cache@v2
+      with:
+        path: deps
+        key: ${{ runner.os }}-mix-${{ hashFiles('**/mix.lock') }}
+        restore-keys: ${{ runner.os }}-mix-
     - name: Install dependencies
       run: mix deps.get
     - name: Run tests