Automated Release process

Extended workflow to create/update a pre-release called latest after each commit/merge to master, uploading the generated assets to that release. The binaries can then be downloaded and tested and the release promoted to a full release if as needed.

Fixes #262

Author: jeremypoulter

.github/dependabot.yml

@@ -0,0 +1,12 @@
+version: 2
+updates:
+  - package-ecosystem: gitsubmodule
+    directory: /
+    pull-request-branch-name:
+      separator: "-"
+    schedule:
+      interval: daily
+    reviewers:
+      - "jeremypoulter"
+      - "glynhudson"
+      - "chris1howell"

.github/workflows/build.yaml

@@ -1,4 +1,4 @@
-name: PlatformIO CI
+name: Build/Release OpenEVSE
 
 on:
   workflow_dispatch:
@@ -85,3 +85,33 @@ jobs:
         name: ${{ matrix.env }}.bin
         path: .pio/build/${{ matrix.env }}/firmware.bin
 
+  release:
+    runs-on: ubuntu-latest
+    needs: build
+    if: github.ref == 'refs/heads/master'
+
+    steps:
+    - name: Download the built assets
+      uses: actions/download-artifact@v2
+      with:
+        path: artifacts
+
+    - name: Rename images to something more sensible
+      run: |
+        find artifacts -name 'firmware.bin' | while read -r image; do
+          dir=$(dirname "${image}")
+          board=$(basename "${dir}")
+          echo mv "$image" "$board"
+          mv "$image" "$board"
+        done
+
+    - name: Upload assets to latest release
+      uses: "marvinpinto/action-automatic-releases@latest"
+      with:
+        repo_token: "${{ secrets.GITHUB_TOKEN }}"
+        automatic_release_tag: "latest"
+        prerelease: true
+        title: "Development Build"
+        files: |
+          *.bin
+