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Fix gh-pages concurrency race conditions in deploy and preview workflows #13

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Merged
Primajin merged 2 commits into from
May 4, 2026
Merged

Fix gh-pages concurrency race conditions in deploy and preview workflows #13

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f8e78e2
Initial plan
Copilot May 4, 2026
268c1e5
fix: use shared gh-pages concurrency group to prevent race conditions
Copilot May 4, 2026
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8 changes: 8 additions & 0 deletions .github/workflows/deploy.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,14 @@ on:
permissions:
contents: write

# Use a single shared concurrency group so all runs that write to gh-pages are
# serialised. A per-ref group still allows concurrent writes from different
# triggers and causes rebase conflicts on the gh-pages branch.
# cancel-in-progress: false ensures queued runs still execute.
concurrency:
group: gh-pages
cancel-in-progress: false

jobs:
deploy:
runs-on: ubuntu-latest
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10 changes: 9 additions & 1 deletion .github/workflows/preview.yml
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Expand Up @@ -12,7 +12,15 @@ permissions:
contents: write
pull-requests: write

concurrency: preview-${{ github.ref }}
# Use a single shared concurrency group so all runs that write to gh-pages are
# serialised. "preview-${{ github.ref }}" only serialises per PR, which still
# allows concurrent writes from different PRs (or synchronize vs. closed events)
# and causes "remote contains work not present locally" / rebase conflicts.
# cancel-in-progress: false ensures queued runs still execute (important for
# the "closed" event that removes a preview).
concurrency:
group: gh-pages
cancel-in-progress: false

jobs:
deploy-preview:
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