CI: add config for github actions

CI: try to fix missing packages

ci: drop 32-bit r64 (default is now 64bit)

ci: drop python-mako

ci: update checkout and cache to v3

https://github.com/actions/cache

for additional warnings a PR is open for marvinpinto/automatic-releases

marvinpinto/action-automatic-releases#2

.github/workflows/build.yml

@@ -0,0 +1,76 @@
+# This is a basic workflow to help you get started with Actions
+
+name: CI
+
+# Controls when the action will run. 
+on:
+  # Triggers the workflow on push or pull request events but only for the master branch
+  push:
+    branches:
+    - '*-bpi'
+    - '*-ci'
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Install depencies
+        run: |
+          sudo apt update
+          sudo apt install ccache libssl-dev u-boot-tools gcc-arm-linux-gnueabihf gcc-aarch64-linux-gnu make
+
+      - name: Setup env
+        run: |
+          echo "DT=$(date +'%Y-%m-%d_%H%M')" >> $GITHUB_ENV
+          echo "UBOOTVER=$(make ubootversion)" >> $GITHUB_ENV
+          echo "BRANCH=${GITHUB_REF##*/}" >> $GITHUB_ENV
+
+      - name: Print env
+        run: |
+          echo $BRANCH $UBOOTVER $DT
+
+      - name: Setup cache
+        id: cache
+        uses: actions/cache@v3
+        with:
+          path: ~/.ccache
+          key: ${{ runner.os }}-ccache
+          restore-keys: ${{ runner.os }}-ccache
+
+      - name: Build for bananapi-r2
+        run: |
+          export PATH=/usr/lib/ccache:$PATH
+          bash build.sh importconfig
+          bash build.sh build
+          bash build.sh rename
+
+      - name: Build for bananapi-r64
+        run: |
+          sed -i 's/#\(board=bpi-r64\)/\1/' build.conf #change board to r64
+          bash build.sh importconfig
+          bash build.sh build
+          bash build.sh rename
+
+      - name: Upload binaries to release
+        if: endsWith(github.ref,'-bpi')
+        uses: marvinpinto/action-automatic-releases@latest
+        with:
+          repo_token: "${{ secrets.GITHUB_TOKEN }}"
+          automatic_release_tag: "CI-BUILD-${{ env.BRANCH }}-${{ env.UBOOTVER }}-${{ env.DT }}"
+          prerelease: false
+          title: "Build for branch ${{ env.BRANCH }} (${{ env.UBOOTVER }})"
+          files: |
+            u-boot-r2*.bin
+            u-boot-r64*.bin