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Make PR preview workflow more robust #137

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Merged
manovotn merged 1 commit into from
Aug 14, 2026
Merged

Make PR preview workflow more robust #137

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16 changes: 12 additions & 4 deletions .github/workflows/pr-preview.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -33,23 +33,31 @@ jobs:
run-id: ${{ github.event.workflow_run.id }}
github-token: ${{ secrets.GITHUB_TOKEN }}

- name: Read PR number
- name: Read and validate PR number
id: pr
run: echo "number=$(cat pr-number.txt)" >> "$GITHUB_OUTPUT"
run: |
PR_NUM=$(cat pr-number.txt)
if ! [[ "$PR_NUM" =~ ^[0-9]+$ ]]; then
echo "::error::Invalid PR number: '$PR_NUM'"
exit 1
fi
echo "number=$PR_NUM" >> "$GITHUB_OUTPUT"

- name: Install Surge
run: npm install -g surge

- name: Deploy to Surge
run: surge ./site ${{ env.PREVIEW_URL }} --token ${{ secrets.WEB_PREVIEW_TOKEN_SURGE }}
run: surge ./site "$PREVIEW_URL" --token ${{ secrets.WEB_PREVIEW_TOKEN_SURGE }}
env:
PREVIEW_URL: pr-${{ steps.pr.outputs.number }}-weld-site.surge.sh

- name: Comment on PR
uses: actions/github-script@v9
env:
PR_NUMBER: ${{ steps.pr.outputs.number }}
with:
script: |
const prNumber = ${{ steps.pr.outputs.number }};
const prNumber = parseInt(process.env.PR_NUMBER, 10);
const previewUrl = `https://pr-${prNumber}-weld-site.surge.sh`;
const body = `A preview of this PR is available at ${previewUrl}`;
const { data: comments } = await github.rest.issues.listComments({
Expand Down