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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.
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name : "Periodic Merges (24h)"
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on :
schedule :
# * is a special character in YAML so you have to quote this string
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# Merge every 24 hours
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- cron : '0 0 * * *'
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workflow_dispatch :
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permissions :
contents : read
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jobs :
periodic-merge :
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permissions :
contents : write # for devmasx/merge-branch to merge branches
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pull-requests : write # for peter-evans/create-or-update-comment to create or update comment
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if : github.repository_owner == 'NixOS'
runs-on : ubuntu-latest
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 : master
into : haskell-updates
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- from : release-23.11
into : staging-next-23.11
- from : staging-next-23.11
into : staging-23.11
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name : ${{ matrix.pairs.from }} → ${{ matrix.pairs.into }}
steps :
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- uses : actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
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- name : ${{ matrix.pairs.from }} → ${{ matrix.pairs.into }}
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uses : devmasx/merge-branch@854d3ac71ed1e9deb668e0074781b81fdd6e771f # 1.4.0
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with :
type : now
from_branch : ${{ matrix.pairs.from }}
target_branch : ${{ matrix.pairs.into }}
github_token : ${{ secrets.GITHUB_TOKEN }}
- name : Comment on failure
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uses : peter-evans/create-or-update-comment@71345be0265236311c031f5c7866368bd1eff043 # v4.0.0
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if : ${{ failure() }}
with :
issue-number : 105153
body : |
Periodic merge from `${{ matrix.pairs.from }}` into `${{ matrix.pairs.into }}` has [failed](https://github.com/NixOS/nixpkgs/actions/runs/${{ github.run_id }}).