From 4d9ed97690df2ea37974b058876a754b4a015871 Mon Sep 17 00:00:00 2001
From: Ayiko Fred <lgmfred@ayikoyo.com>
Date: Sat, 13 Jan 2024 18:58:34 +0300
Subject: [PATCH] Add CI

---
 .github/workflows/ci.yaml | 98 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 .github/workflows/ci.yaml

diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
new file mode 100644
index 0000000..90c018d
--- /dev/null
+++ b/.github/workflows/ci.yaml
@@ -0,0 +1,98 @@
+name: Elixir CI
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    # Set up a Postgres DB service. By default, Phoenix applications
+    # use Postgres.
+    services:
+      db:
+        image: postgres:15
+        ports: ["5432:5432"]
+        env:
+          POSTGRES_PASSWORD: postgres
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+
+    runs-on: ubuntu-latest
+    name: Test on OTP ${{matrix.otp}} / Elixir ${{matrix.elixir}}
+    strategy:
+      matrix:
+        otp: ["25.3.2"]
+        elixir: ["1.15.7"]
+    steps:
+      - name: Set up Elixir
+        uses: erlef/setup-beam@61e01a43a562a89bfc54c7f9a378ff67b03e4a21 # v1.16.0
+        with:
+          otp-version: ${{matrix.otp}}
+          elixir-version: ${{matrix.elixir}}
+
+      # Step: Check out the code.
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      # Step: Define how to cache deps. Restores existing cache if present.
+      - name: Cache deps
+        id: cache-deps
+        uses: actions/cache@v3
+        env:
+          cache-name: cache-elixir-deps
+        with:
+          path: deps
+          key: ${{ runner.os }}-mix-${{ env.cache-name }}-${{ hashFiles('**/mix.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-mix-${{ env.cache-name }}-
+
+      # Step: Define how to cache the `_build` directory. After the first run,
+      # this speeds up tests runs a lot. This includes not re-compiling our
+      # project's downloaded deps every run.
+      - name: Cache compiled build
+        id: cache-build
+        uses: actions/cache@v3
+        env:
+          cache-name: cache-compiled-build
+        with:
+          path: _build
+          key: ${{ runner.os }}-mix-${{ env.cache-name }}-${{ hashFiles('**/mix.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-mix-${{ env.cache-name }}-
+            ${{ runner.os }}-mix-
+
+      # Step: Conditionally bust the cache when job is re-run.
+      # Sometimes, we may have issues with incremental builds that are fixed by
+      # doing a full recompile. In order to not waste dev time on such trivial
+      # issues (while also reaping the time savings of incremental builds for
+      # *most* day-to-day development), force a full recompile only on builds
+      # that are retried.
+      - name: Keep it clean to avoid incremental build problems (flakiness)
+        if: github.run_attempt != '1'
+        run: |
+          mix deps.clean --all
+          mix clean
+        shell: sh
+
+      - name: Install dependencies
+        run: mix deps.get
+
+      - name: Compiles without warnings
+        run: mix compile --warnings-as-errors
+
+      - name: Check Formatting
+        run: mix format --check-formatted
+
+      - name: Credo Check
+        run: mix credo
+
+      - name: Run tests
+        run: mix test --cover --warnings-as-errors
\ No newline at end of file