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# GHA workflow which publishes previews of spec PRs to netlify.
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#
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# We keep this in a separate workflow to the main spec build, because it
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# requires access to the Netlify secret. By having it run on `workflow_run`, we
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# will only use the workflow definition file on the default branch, so we can
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# ensure that the secret can't be exfiltrated.
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#
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name: Upload Preview Build to Netlify
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on:
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workflow_run:
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workflows: [Spec]
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types: [completed]
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jobs:
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build:
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runs-on: ubuntu-latest
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if: github.event.workflow_run.conclusion == 'success' && github.event.workflow_run.event == 'pull_request'
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steps:
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- name: "dump context data"
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run: |
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jq . < $GITHUB_EVENT_PATH
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- name: "🔍 Read PR number"
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id: readctx
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# we need to find the PR number that corresponds to the branch, which we do by
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# searching the GH API
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run: |
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head_branch='${{github.event.workflow_run.head_repository.owner.login}}:${{github.event.workflow_run.head_branch}}'
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echo "head branch: $head_branch"
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pulls_uri="https://api.github.com/repos/${{ github.repository }}/pulls?head=$(jq -Rr '@uri' <<<$head_branch)"
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pr_number=$(curl -H 'Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}' "$pulls_uri" |
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jq -r '.[] | .number')
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echo "PR number: $pr_number"
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echo "prnumber=$pr_number" >> "$GITHUB_OUTPUT"
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- name: '📥 Download artifact'
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uses: dawidd6/action-download-artifact@09f2f74827fd3a8607589e5ad7f9398816f540fe # v3.1.4
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with:
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workflow: main.yaml
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run_id: ${{ github.event.workflow_run.id }}
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name: spec-artifact
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- name: "📦 Extract Artifacts"
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run: tar -xzvf spec.tar.gz && rm spec.tar.gz
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- name: "📤 Deploy to Netlify"
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id: netlify
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uses: nwtgck/actions-netlify@4cbaf4c08f1a7bfa537d6113472ef4424e4eb654 # v3.0.0
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with:
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publish-dir: spec
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deploy-message: "Deploy from GitHub Actions"
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enable-pull-request-comment: false
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enable-commit-comment: false
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alias: pr${{ steps.readctx.outputs.prnumber }}
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env:
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NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
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NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}
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timeout-minutes: 1
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- name: "📝 Edit PR Description"
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# v1.0.1
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uses: Beakyn/gha-comment-pull-request@2167a7aee24f9e61ce76a23039f322e49a990409
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env:
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GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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with:
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pull-request-number: ${{ steps.readctx.outputs.prnumber }}
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description-message: |
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Preview: ${{ steps.netlify.outputs.deploy-url }}
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