boinc/android/Vagrant.README.md

Goals

Provide a turn-key VM for Android development

Requirements

On Linux, MacOS or Windows with VirtualBox

• Vagrant
• VirtualBox
• VirtualBox Extension Pack for USB 3.0 support.
• Host:
  • 4 CPU cores (2 used by VM)
  • ~18 GB disk space
  • 4 GB RAM (2 used by VM)
• Download volume (once): ~3.5 GB

On Windows with Hyper-V

• Hyper-V
• Host:
  • 4 CPU cores (2 used by VM)
  • ~18 GB disk space
  • 8 GB RAM (4 used by VM)
• Download volume (once): ~3.5 GB

HOWTO

1. On your host: open a terminal
   1. Clone the BOINC repo and cd <BOINC_REPO>/android or just dowload the Vagrantfile from GitHub
   2. vagrant up
   3. Wait until the final reboot finished
   4. From this point on you don't need Vagrant anymore
      1. Don't run vagrant up again!
      2. Just use VirtualBox/Hyper-V to stop/start your new shiny VM
2. In the VM:
   1. Log in with vagrant/vagrant
   2. Open a terminal
      1. cd ~/BOINC/android
      2. ./build_client.sh
   3. Start Android Studio
   4. No need to change anything in the setup assitant (just complete it)
      • OK / Next / Next / Finish / Finish
   5. Import the BOINC App as Gradle project from: ~/BOINC/android/BOINC
   6. Ignore potential Gradle Plugin warning: Don't remind me again
3. Hook up your Android device via USB (and remember to attach it to VirtualBox)
4. Happy hacking :-)

Android Virtual Device Manager

Hyper-V can run Android Virtual Device Manager, but you have to install KVM and add vagrant user to KVM Group.

1. Open a terminal
   1. apt install qemu-kvm
   2. adduser vagrant kvm
2. Reboot the VM.

Known limitations

• The Android Virtual Device Manager might not work properly as it needs virtualization which isn't possible within a virtual machine (at least not using VirtualBox). Although Hyper-V can run Android Virtual Device Manager.
• On Windows it seems the VirtualBox manage GPU acceleration a little better on Ubuntu 18.04, than Hyper-V, despite the fact that Windows added Enhanced Session Mode to Ubuntu 18.04.

Push to GitHub without password using ssh-key

If you want to do a push without username and password prompt, you have to do the following:

1. Open terminal.
2. Go to the BOINC repository: cd ~/BOINC
3. Switch the remote URL from HTTPS to SSH: git remote set-url origin git@github.com:BOINC/boinc.git
4. Verify that the remote URL has changed: git remote -v
5. Generate a new SSH key: ssh-keygen -t rsa -b 4096 -C "your_email@example.com"
   1. When you're prompted to "Enter a file in which to save the key," press Enter. This accepts the default file location.
   2. When you're promted to "Enter passphrase (empty for no passphrase)" type a secure passphrase.
6. Add your SSH key to the ssh-agent.
   1. Start the ssh-agent in the background: eval "$(ssh-agent -s)"
   2. Add your SSH private key to the ssh-agent: ssh-add ~/.ssh/id_rsa
7. Add the new SSH key to your GitHub account
   1. Copy the SSH key to your clipboard: cat ~/.ssh/id_rsa.pub
   2. In the upper-right corner of GitHub, click your profile photo, then click Settings.
   3. In the user settings sidebar, click SSH and GPG keys.
   4. Click New SSH key.
   5. In the Title field, add a descriptive label for the new key. For example "BOINC Android Development".
   6. Paste your key into the Key field.

For more information check out the Connecting to GitHub with SSH article.