add coveralls

.github/workflows/ci.yml

@@ -1,36 +1,36 @@
 name: CI
 on: [pull_request, push]
 jobs:
- mix_test:
-   name: mix test (Elixir ${{ matrix.elixir }} OTP ${{ matrix.otp }})
-   strategy:
-     matrix:
-       elixir: ['1.7.4', '1.10.1']
-       include:
-         - elixir: '1.7.4'
-           otp: '19.x'
-         - elixir: '1.10.1'
-           otp: '22.x'
-   runs-on: ubuntu-16.04
-   steps:
-     - name: Setup PostgreSQL
-       uses: Harmon758/postgresql-action@v1.0.0
-       with:
-         postgresql db: ex_sieve_test
-         postgresql user: ex_sieve_user
-         postgresql password: ex_sieve_password
-     - uses: actions/checkout@v1
-     - uses: actions/setup-elixir@v1
-       with:
-         otp-version: ${{ matrix.otp }}
-         elixir-version: ${{ matrix.elixir }}
-     - name: Install Dependencies
-       run: mix deps.get
-       env:
-         MIX_ENV: test
-     - name: Run Tests
-       run: mix ecto.migrate && mix test
-       env:
-         MIX_ENV: test
-         DB_USER: ex_sieve_user
-         DB_PASSWORD: ex_sieve_password
+  mix_test:
+    name: mix test (Elixir ${{ matrix.elixir }} OTP ${{ matrix.otp }})
+    strategy:
+      matrix:
+        elixir: ["1.7.4", "1.10.1"]
+        include:
+          - elixir: "1.7.4"
+            otp: "19.x"
+          - elixir: "1.10.1"
+            otp: "22.x"
+    runs-on: ubuntu-latest
+    env:
+      MIX_ENV: test
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - name: Setup PostgreSQL
+        uses: Harmon758/postgresql-action@v1.0.0
+        with:
+          postgresql db: ex_sieve_test
+          postgresql user: ex_sieve_user
+          postgresql password: ex_sieve_password
+      - uses: actions/checkout@v1
+      - uses: actions/setup-elixir@v1
+        with:
+          otp-version: ${{ matrix.otp }}
+          elixir-version: ${{ matrix.elixir }}
+      - name: Install Dependencies
+        run: mix deps.get
+      - name: Run Tests
+        run: mix ecto.migrate && mix coveralls.github
+        env:
+          DB_USER: ex_sieve_user
+          DB_PASSWORD: ex_sieve_password