Combine nightly and main workflows into one. Tested functionality on a fork so this can come straight into dev

use dev images for the dev branch build.
Only disable pihole checkout on released tags - allow it in dev and nightly tags

Signed-off-by: Adam Warner <me@adamwarner.co.uk>

.github/workflows/test-and-build.yaml

@@ -1,5 +1,7 @@
 name: Test & Build
 on:
+  schedule:
+    - cron: '0 2 * * *'
   push:
     branches:
       - dev
@@ -7,6 +9,7 @@ on:
   release:
     types: [published]
 
+
 jobs:
   test:
     runs-on: ubuntu-latest
@@ -30,31 +33,50 @@ jobs:
         name: Checkout
         uses: actions/checkout@v2
       -
-        name: Get the tag name
+        name: Calculate the versions to use
+        id: variables
         run: |
-          echo "TAG=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
-      -
-        name: Docker meta
-        id: meta
-        uses: docker/metadata-action@v3
-        with:
-          images: |
-            ${{ secrets.DOCKERHUB_NAMESPACE }}/pihole
-            ghcr.io/${{ github.repository_owner }}/pihole
-          github-token: ${{ secrets.GITHUB_TOKEN }}
+          # If trigged by schedule then container tag will be nightly, else it's either dev or whatever the tagged version number is
+          PIHOLE_VERSION=$([ "${{ github.event_name == 'schedule' }}" = "true" ] && echo "nightly" || echo "${GITHUB_REF#refs/*/}")
+
+          # If we are building dev branch or nightly then we want to use the development branches of the core components
+          # otherwise they will be unset and the main branches will be pulled
+          if [ "${PIHOLE_VERSION}" = "dev" || "${PIHOLE_VERSION}" = "nightly" ]; then
+            CORE_VERSION=development
+            WEB_VERSION=devel
+            FTL_VERSION=development
+          fi
+
+          echo ::set-output name=CORE_VERSION::${CORE_VERSION}
+          echo ::set-output name=WEB_VERSION::${WEB_VERSION}
+          echo ::set-output name=FTL_VERSION::${FTL_VERSION}
+          echo ::set-output name=PIHOLE_VERSION::${PIHOLE_VERSION}
       -
         name: Set up QEMU
         uses: docker/setup-qemu-action@v1
       -
         name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1
+      -
+        name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          images: |
+            ${{ secrets.DOCKERHUB_NAMESPACE }}/pihole
+            ghcr.io/${{ github.repository_owner }}/pihole
+          flavor: |
+            latest=${{ startsWith(github.ref, 'refs/tags/') }}
+          tags: |
+            ${{ steps.variables.outputs.PIHOLE_VERSION }}
       -
         name: Login to DockerHub
         uses: docker/login-action@v1
         with:
           username: ${{ secrets.DOCKERHUB_USER }}
           password: ${{ secrets.DOCKERHUB_PASS }}
-      - 
+      -
         name: Login to GitHub Container Registry
         uses: docker/login-action@v1
         with:
@@ -68,7 +90,10 @@ jobs:
           context: .
           platforms: linux/amd64, linux/arm64, linux/386, linux/arm/v7, linux/arm/v6, linux/ppc64le
           build-args: |
-            PIHOLE_VERSION=${{ env.TAG }}
+            CORE_VERSION=${{ steps.variables.outputs.CORE_VERSION }}
+            WEB_VERSION=${{ steps.variables.outputs.WEB_VERSION }}
+            FTL_VERSION=${{ steps.variables.outputs.FTL_VERSION }}
+            PIHOLE_VERSION=${{ steps.variables.outputs.PIHOLE_VERSION }}
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}