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Fix preview links showing unrelated content changes #185

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Merged
cwickham merged 1 commit into from
Apr 15, 2026
Merged

Fix preview links showing unrelated content changes #185

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6 changes: 4 additions & 2 deletions .github/workflows/deploy-preview.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -122,8 +122,10 @@ jobs:
- name: Detect content changes
id: detect-content
run: |
git fetch origin main --depth=1
CHANGED=$(git diff --name-only origin/main -- 'content/' \
# HEAD is refs/pull/N/merge — a merge commit whose first parent is
# the base branch. Diffing against HEAD~1 gives exactly the PR's
# changes, even when main has moved ahead of the merge ref.
CHANGED=$(git diff --name-only HEAD~1 -- 'content/' \
| { grep -E '/_?index\.(md|qmd|ipynb|Rmd|Rmarkdown|markdown|html)$' || true; })

if [ -z "$CHANGED" ]; then
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