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preview-pull-request.yml
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name: preview-pull-request
on:
workflow_run:
workflows: ["build-validate-publish"]
types:
- completed
jobs:
# This workflow contains a single job called "build"
build:
# The type of runner that the job will run on
runs-on: ubuntu-20.04
# Steps represent a sequence of tasks that will be executed as part of the job
steps:
# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
- uses: actions/checkout@v2
# Extracts PR from Head SHA
- name: Find PR
if: ${{ github.event.workflow_run.event == 'pull_request' }}
run: |
PR=$(curl https://api.github.com/search/issues?q=${{ github.event.workflow_run.head_sha }} |
grep -Po "(?<=${{ github.event.workflow_run.repository.full_name }}\/pulls\/)\d*" | head -1)
echo "This PR is #$PR of ${{ github.event.workflow_run.repository.name }} from ${{ github.event.workflow_run.repository.owner.login }}. Therefore, https://github.com/${{ github.event.workflow_run.repository.owner.login }}/${{ github.event.workflow_run.repository.name }}/pull/$PR should be the location of the PR. If no longer valid, please provide feedback."
echo "PR=$PR" >> $GITHUB_ENV
# Replaces base specs with head specs
- name: Pull PR
if: ${{ github.event.workflow_run.event == 'pull_request' && env.PR }}
# Note, do not add python scripts here due to easy private key access.
run: |
git fetch https://github.com/${{ github.event.workflow_run.head_repository.full_name }} ${{ github.event.workflow_run.head_sha }}
git ls-tree ${{ github.event.workflow_run.head_sha }} --full-tree --name-only -r spec/ wgsl/ explainer/ correspondence/ | grep "\.\(bs\|include\|svg\|png\|jpg\)$" | xargs git checkout ${{ github.event.workflow_run.head_sha }} --
# Extracts preview repository
# This step exists as preparation for GitHub Actions non-secret environment variables per repository.
# Until then, creating a repository with this exact name is necessary. Secret environment variables are
# well-protected and tracked by GitHub, so it is not possible to publicize them easily and reliably
# as a source of configuration.
- name: Find PR Preview Repo
if: ${{ github.event.workflow_run.event == 'pull_request' && env.PR }}
env:
PR_PREVIEW_REPO: "gpuweb-pr-previews"
run: |
if curl -f -s -o /dev/null https://github.com/${{ github.event.workflow_run.repository.owner.login }}/$PR_PREVIEW_REPO ; then echo "Previews will live in https://${{ github.event.workflow_run.repository.owner.login }}.github.io/$PR_PREVIEW_REPO/gpuweb/gpuweb/$PR/" ; echo "PR_PREVIEW_REPO=$PR_PREVIEW_REPO" >> $GITHUB_ENV ; else exit 0 ; fi
# Builds Bikeshed specs
- name: Build Bikeshed
if: ${{ github.event.workflow_run.event == 'pull_request' && env.PR }}
run: |
export PATH="$(python3 -m site --user-base)/bin:${PATH}"
sh tools/install-dependencies.sh bikeshed wgsl
BIKESHED_DISALLOW_ONLINE=1 make -j out
export GHC=https://github.com/gpuweb/gpuweb/blob
export GHCU=https://github.com/${{ github.event.workflow_run.head_repository.full_name }}/blob
sed -i -e "s,gpuweb/wgsl/</a><br><a href=\"${GHC}/$(git rev-parse HEAD)/wgsl/index.bs\">${GHC}/$(git rev-parse HEAD)/wgsl/index.bs</a>,gpuweb/wgsl/</a><br><a href=\"${GHCU}/${{ github.event.workflow_run.head_sha }}/wgsl/index.bs\">${GHCU}/${{ github.event.workflow_run.head_sha }}/wgsl/index.bs</a>," out/wgsl/index.html
sed -i -e "s,gpuweb.github.io/gpuweb/</a><br><a href=\"${GHC}/$(git rev-parse HEAD)/spec/index.bs\">${GHC}/$(git rev-parse HEAD)/spec/index.bs</a>,gpuweb.github.io/gpuweb/</a><br><a href=\"${GHCU}/${{ github.event.workflow_run.head_sha }}/spec/index.bs\">${GHCU}/${{ github.event.workflow_run.head_sha }}/spec/index.bs</a>," out/index.html
# Deploys PR to preview
- name: Deploy PR
id: deployment
uses: peaceiris/actions-gh-pages@v3
env:
DEPLOY_KEY: ${{ secrets.DEPLOY_KEY }}
if: ${{ github.event.workflow_run.event == 'pull_request' && env.PR && env.PR_PREVIEW_REPO && env.DEPLOY_KEY != '' }}
with:
deploy_key: ${{ secrets.DEPLOY_KEY }}
publish_dir: out
destination_dir: gpuweb/gpuweb/${{ env.PR }}
external_repository: ${{ github.event.workflow_run.repository.owner.login }}/${{ env.PR_PREVIEW_REPO }}
publish_branch: main
keep_files: true
- name: Find Previous Comment
uses: peter-evans/find-comment@v2
env:
DEPLOY_KEY: ${{ secrets.DEPLOY_KEY }}
if: ${{ github.event.workflow_run.event == 'pull_request' && env.PR && env.PR_PREVIEW_REPO && env.DEPLOY_KEY != '' }}
id: previous-comment
with:
issue-number: ${{ env.PR }}
comment-author: 'github-actions[bot]'
body-includes: pr;head;sha;base
- name: Fetch Preview Commit
env:
CDN_BASE: "https://raw.githack.com"
RAW_BASE: "https://raw.githubusercontent.com"
if: ${{ github.event.workflow_run.event == 'pull_request' && env.PR && env.PR_PREVIEW_REPO }}
run: |
sleep 1 # Wait
HASH=$(git ls-remote https://github.com/${{ github.event.workflow_run.repository.owner.login }}/${{ env.PR_PREVIEW_REPO }} HEAD | cut -f1)
SUFFIX=${{ github.event.workflow_run.repository.owner.login }}/${{ env.PR_PREVIEW_REPO }}/$HASH/gpuweb/gpuweb/${{ env.PR }}
echo "CDN_URL=$CDN_BASE/$SUFFIX" >> $GITHUB_ENV
echo "RAW_URL=$RAW_BASE/$SUFFIX" >> $GITHUB_ENV
# Comments on PR
- name: Comment PR
uses: peter-evans/create-or-update-comment@v2
env:
DEPLOY_KEY: ${{ secrets.DEPLOY_KEY }}
if: ${{ github.event.workflow_run.event == 'pull_request' && env.PR && env.PR_PREVIEW_REPO && env.DEPLOY_KEY != '' }}
with:
comment-id: ${{ steps.previous-comment.outputs.comment-id }}
issue-number: ${{ env.PR }}
edit-mode: replace
body: |
Previews, as seen when this [build job](https://github.com/${{github.repository}}/actions/runs/${{github.run_id}}) started (${{ github.event.workflow_run.head_sha }}):
[**WebGPU**](${{ env.CDN_URL }}/) <sub>[**`webgpu.idl`**](${{ env.RAW_URL }}/webgpu.idl.txt) | [**Explainer**](${{ env.CDN_URL }}/explainer/) | [**Correspondence Reference**](${{ env.CDN_URL }}/correspondence/)</sub>
[**WGSL**](${{ env.CDN_URL }}/wgsl/) <sub>[**`grammar.js`**](${{ env.RAW_URL }}/wgsl/grammar/grammar.js) | [**`wgsl.lalr.txt`**](${{ env.RAW_URL }}/wgsl/wgsl.lalr.txt)</sub>
<!--
pr;head;sha;base
${{ env.PR }};${{ github.event.workflow_run.head_repository.full_name }};${{ github.event.workflow_run.head_sha }};${{ github.event.workflow_run.repository.full_name }}
-->