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|
# This action periodically merges base branches into staging branches.
# This is done to
# * prevent conflicts or rather resolve them early
# * make all potential breakage happen on the staging branch
# * and make sure that all major rebuilds happen before the staging
# branch get’s merged back into its base branch.
name: "Periodic Merges (24h)"
on:
schedule:
# * is a special character in YAML so you have to quote this string
# Merge every 24 hours
- cron: '0 0 * * *'
workflow_dispatch:
permissions: {}
defaults:
run:
shell: bash
jobs:
periodic-merge:
if: github.repository_owner == 'NixOS' || github.event_name == 'workflow_dispatch'
strategy:
# don't fail fast, so that all pairs are tried
fail-fast: false
# certain branches need to be merged in order, like master->staging-next->staging
# and disabling parallelism ensures the order of the pairs below.
max-parallel: 1
matrix:
pairs:
- from: release-26.05
into: staging-next-26.05
- from: staging-next-26.05
into: staging-26.05
- from: release-26.05
into: staging-nixos-26.05
- name: merge-base(master,staging) → haskell-updates
from: master staging
into: haskell-updates
uses: ./.github/workflows/periodic-merge.yml
with:
from: ${{ matrix.pairs.from }}
into: ${{ matrix.pairs.into }}
name: ${{ matrix.pairs.name || format('{0} → {1}', matrix.pairs.from, matrix.pairs.into) }}
secrets:
NIXPKGS_CI_APP_PRIVATE_KEY: ${{ secrets.NIXPKGS_CI_APP_PRIVATE_KEY }}
# Resets the target branch of the current haskell-updates PR.
# This makes GitHub hide all the commits that are already part of staging and gives us a much clearer PR view.
haskell-updates:
needs: periodic-merge
runs-on: ubuntu-slim
permissions:
pull-requests: write
steps:
- name: Find PR and update target branch
uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
with:
script: |
// There will at most be a single haskell-updates PR anyway, so no need to paginate.
await Promise.all(
(
await github.rest.pulls.list({
...context.repo,
state: 'open',
head: `${context.repo.owner}:haskell-updates`,
})
).data.map((pr) =>
github.rest.pulls.update({
...context.repo,
pull_number: pr.number,
// Just updating to the same branch to trigger a UI update.
// This is staging most of the time, but could be staging-next in rare cases.
base: pr.base.ref,
}),
),
)
|
