main.yml

# GitHub Actions Workflow to build Rust+RIOT Firmware for PineTime Smart Watch
# See https://lupyuen.github.io/pinetime-rust-mynewt/articles/cloud

# Name of this Workflow
name: Build PineTime Firmware

# When to run this Workflow...
on:

  # Run this Workflow when files are updated (Pushed) in this Branch
  push:
    branches: [ master ]
    
# Steps to run for the Workflow
jobs:
  build:

    # Run these steps on Ubuntu
    runs-on: ubuntu-latest

    steps:
        
    #########################################################################################
    # Checkout
      
    - name: Checkout source files
      uses: actions/checkout@v2
      with:
        submodules: 'recursive'

    - name: Show files
      run:  set ; pwd ; ls -l

    #########################################################################################
    # Download and Cache Dependencies

    - name: Install imgtool dependencies
      run:  |
        pip3 install --user setuptools
        pip3 install --user pycrypto ecdsa pyasn1

    # - name: Fetch cache for Rust Toolchain
    #   id:   cache-rust
    #   uses: actions/cache@v2
    #   with:
    #     path: |
    #       ~/.cargo/registry
    #       ~/.cargo/git
    #       target
    #     key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}

    - name: Install Rust Target thumbv7em-none-eabihf
      run:  |
        rustup default nightly
        rustup target add thumbv7em-none-eabihf
    
    - name: Check cache for Embedded Arm Toolchain arm-none-eabi-gcc
      id:   cache-toolchain
      uses: actions/cache@v2
      env:
        cache-name: cache-toolchain
      with:
        path: ${{ runner.temp }}/arm-none-eabi
        key:  ${{ runner.os }}-build-${{ env.cache-name }}
        restore-keys: ${{ runner.os }}-build-${{ env.cache-name }}

    - name: Install Embedded Arm Toolchain arm-none-eabi-gcc
      if:   steps.cache-toolchain.outputs.cache-hit != 'true'  # Install toolchain if not found in cache
      uses: fiam/arm-none-eabi-gcc@v1.0.2
      with:
        # GNU Embedded Toolchain for Arm release name, in the V-YYYY-qZ format (e.g. "9-2019-q4")
        release: 8-2019-q3
        # Directory to unpack GCC to. Defaults to a temporary directory.
        directory: ${{ runner.temp }}/arm-none-eabi

    #########################################################################################
    # Build and Upload Standalone Rust+RIOT Application Firmware

    - name: Build Standalone Application Firmware
      run:  |
        export PATH=$PATH:${{ runner.temp }}/arm-none-eabi/bin
        ./scripts/build-app.sh

    - name: Upload Standalone Application Firmware
      uses: actions/upload-artifact@v2
      with:
        name: PineTime.elf
        path: apps/pinetime/bin/pinetime/PineTime.elf

    - name: Upload Standalone Application Firmware Outputs
      uses: actions/upload-artifact@v2
      with:
        name: PineTime.zip
        path: apps/pinetime/bin/pinetime/PineTime.*

    #########################################################################################
    # Build and Upload Rust+RIOT Application Firmware for MCUBoot

    - name: Build Application Firmware for MCUBoot
      run:  |
        export PATH=$PATH:${{ runner.temp }}/arm-none-eabi/bin
        export IMAGE_VERSION=1.1.1+1
        cd apps/pinetime
        make mcuboot

    - name: Upload Application Firmware for MCUBoot
      uses: actions/upload-artifact@v2
      with:
        name: PineTime-mcuboot.elf
        path: apps/pinetime/bin/pinetime/PineTime.elf

    - name: Upload Application Firmware Outputs for MCUBoot
      uses: actions/upload-artifact@v2
      with:
        name: PineTime-mcuboot.zip
        path: apps/pinetime/bin/pinetime/PineTime.*

    #########################################################################################
    # Finish

# Embedded Arm Toolchain will only be cached if the build succeeds.
# So make sure that the first build always succeeds, e.g. comment out the "Build" step.