qmk_firmware/chibios_upgrade_instructions.md

ChibiOS Upgrade Procedure

ChibiOS and ChibiOS-Contrib need to be updated in tandem -- the latter has a branch tied to the ChibiOS version in use and should not be mixed with different versions.

Getting ChibiOS

• svn Initialization:
  • Only needed to be done once
  • You might need to separately install git-svn package in your OS's package manager
  • git svn init --stdlayout --prefix='svn/' http://svn.osdn.net/svnroot/chibios/
  • git remote add qmk git@github.com:qmk/ChibiOS.git
• Updating:
  • git svn fetch
  • First time around this will take several hours
  • Subsequent updates will be incremental only
• Tagging example (work out which version first!):
  • git tag -a ver20.3.4 -m ver20.3.4 svn/tags/ver20.3.4
  • git push qmk ver20.3.4
  • git tag -a develop_YYYY_qN -m develop_YYYY_qN svn/tags/ver20.3.4
  • git push qmk develop_YYYY_qN

Getting ChibiOS-Contrib

• git Initialization:
  • git clone git@github.com:qmk/ChibiOS-Contrib
  • git remote add upstream https://github.com/ChibiOS/ChibiOS-Contrib
  • git checkout -b chibios-20.3.x upstream/chibios-20.3.x
• Updating:
  • git fetch --all --tags --prune
  • git checkout chibios-20.3.x
  • git pull --ff-only
  • git push origin chibios-20.3.x
  • git tag -a develop_YYYY_qN -m develop_YYYY_qN chibios-20.3.x
  • git push origin develop_YYYY_qN

Updating submodules

• Update the submodules
  • cd $QMK_FIRMWARE
  • git checkout develop
  • git pull --ff-only
  • git checkout -b chibios-version-bump
  • cd lib/chibios
  • git fetch --all --tags --prune
  • git checkout develop_YYYY_qN
  • cd ../chibios-contrib
  • git fetch --all --tags --prune
  • git checkout develop_YYYY_qN
• Update ChibiOS configs within QMK
  • cd $QMK_FIRMWARE
  • ./util/chibios_conf_updater.sh
• Build everything
  • cd $QMK_FIRMWARE
  • qmk mass-compile -j 4
  • Make sure there are no errors
• Push to the repo
  • git commit -am 'Update ChibiOS to 99.9.9'
  • git push --set-upstream origin chibios-version-bump
• Make a PR to qmk_firmware with the new branch

When merging a PR containing an upgrade of ChibiOS/ChibiOS-Contrib:

• Update the target branch if the merge target was master:
  • git checkout qmk-master
  • git reset --hard develop_YYYY_qN
  • git push origin qmk-master --force-with-lease
• Update the target branch if the merge target was develop:
  • git checkout qmk-develop
  • git reset --hard develop_YYYY_qN
  • git push origin qmk-develop --force-with-lease

Note that when merging develop to master, the first workflow should still be followed.