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Workflow file for this run

name: Vercel deployment preview link generator
on:
pull_request:
types: [opened, synchronize]
paths:
- 'website/docs/docs/**'
- 'website/docs/best-practices/**'
- 'website/docs/guides/**'
- 'website/docs/faqs/**'
- 'website/docs/reference/**'
permissions:
contents: read
pull-requests: write
jobs:
comment-deployment-link:
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v4
with:
fetch-depth: 0
- name: Install necessary tools
run: |
sudo apt-get update
sudo apt-get install -y jq curl
- name: Generate Vercel deployment URL
id: vercel_url
run: |
# Get the branch name
BRANCH_NAME="${{ github.head_ref }}"
# Convert to lowercase
BRANCH_NAME_LOWER=$(echo "$BRANCH_NAME" | tr '[:upper:]' '[:lower:]')
# Replace non-alphanumeric characters with hyphens
BRANCH_NAME_SANITIZED=$(echo "$BRANCH_NAME_LOWER" | sed 's/[^a-z0-9]/-/g')
# Construct the deployment URL
DEPLOYMENT_URL="https://docs-getdbt-com-git-${BRANCH_NAME_SANITIZED}-dbt-labs.vercel.app"
echo "deployment_url=$DEPLOYMENT_URL" >> $GITHUB_OUTPUT
- name: Wait for deployment to be accessible
id: wait_for_deployment
run: |
DEPLOYMENT_URL="${{ steps.vercel_url.outputs.deployment_url }}"
echo "Waiting for deployment at $DEPLOYMENT_URL to become accessible..."
MAX_ATTEMPTS=60 # Adjust as needed (e.g., wait up to 10 minutes)
SLEEP_TIME=10 # Check every 10 seconds
ATTEMPTS=0
while [ $ATTEMPTS -lt $MAX_ATTEMPTS ]; do
STATUS_CODE=$(curl -s -o /dev/null -w "%{http_code}" "$DEPLOYMENT_URL")
if [ "$STATUS_CODE" -eq 200 ]; then
echo "Deployment is accessible."
break
else
echo "Deployment not yet accessible (status code: $STATUS_CODE). Waiting..."
sleep $SLEEP_TIME
ATTEMPTS=$((ATTEMPTS + 1))
fi
done
if [ $ATTEMPTS -eq $MAX_ATTEMPTS ]; then
echo "Deployment did not become accessible within the expected time."
exit 1
fi
- name: Get changed files
id: files
run: |
# Get the list of changed files in the specified directories
CHANGED_FILES=$(git diff --name-only ${{ github.event.pull_request.base.sha }} ${{ github.sha }} | grep -E '^website/docs/(docs|best-practices|guides|faqs|reference)/.*\.md$' || true)
echo "Changed files:"
echo "$CHANGED_FILES"
# Check if any files were changed
if [ -z "$CHANGED_FILES" ]; then
echo "No documentation files were changed."
echo "changed_files=" >> $GITHUB_OUTPUT
else
# Convert line-separated files to space-separated for easier handling
CHANGED_FILES="$(echo "$CHANGED_FILES" | tr '\n' ' ')"
echo "changed_files=$CHANGED_FILES" >> $GITHUB_OUTPUT
fi
- name: Generate file preview links
id: links
run: |
DEPLOYMENT_URL="${{ steps.vercel_url.outputs.deployment_url }}"
CHANGED_FILES="${{ steps.files.outputs.changed_files }}"
if [ -z "$CHANGED_FILES" ]; then
echo "No changed files found in the specified directories."
LINKS="- No documentation files were changed."
else
LINKS=""
for FILE in $CHANGED_FILES; do
# Remove 'website/docs/' prefix and '.md' extension
FILE_PATH="${FILE#website/docs/}"
FILE_PATH="${FILE_PATH%.md}"
# Replace spaces and special characters with hyphens in URL path
URL_PATH=$(echo "$FILE_PATH" | sed 's/ /-/g; s/[^a-zA-Z0-9\-_\/]//g' | tr '[:upper:]' '[:lower:]')
FULL_URL="$DEPLOYMENT_URL/$URL_PATH"
LINKS="$LINKS\n- [$FULL_URL]($FULL_URL)"
done
fi
# Output the links
echo -e "links=$LINKS" >> $GITHUB_OUTPUT
- name: Post comment with deployment link
uses: actions/github-script@v6
with:
github-token: ${{ secrets.GITHUB_TOKEN }}
script: |
const { github, context } = require('@actions/github');
const issue_number = context.payload.pull_request.number;
const body = `
🚀 Deployment available! Here are the direct links to the updated files:
${{ steps.links.outputs.links }}
`;
await github.rest.issues.createComment({
...context.repo,
issue_number,
body: body
});