on-priv-updated #2
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| name: fetch-internal-branch | |
| on: | |
| repository_dispatch: | |
| types: ["on-priv-updated"] | |
| jobs: | |
| publish: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Get token | |
| id: get-token | |
| run: | | |
| # Client ID as first argument | |
| client_id=${{ secrets.APP_CLIENT_ID }} | |
| app_id=${{ secrets.APP_ID }} | |
| pem=$( cat <<'EOF' | |
| ${{ secrets.APP_KEY }} | |
| EOF | |
| ) # file path of the private key as second argument | |
| now=$(date +%s) | |
| iat=$((${now} - 60)) # Issues 60 seconds in the past | |
| exp=$((${now} + 600)) # Expires 10 minutes in the future | |
| b64enc() { openssl base64 | tr -d '=' | tr '/+' '_-' | tr -d '\n'; } | |
| header_json='{ | |
| "typ":"JWT", | |
| "alg":"RS256" | |
| }' | |
| # Header encode | |
| header=$( echo -n "${header_json}" | b64enc ) | |
| payload_json="{ | |
| \"iat\":${iat}, | |
| \"exp\":${exp}, | |
| \"iss\":\"${client_id}\" | |
| }" | |
| # Payload encode | |
| payload=$( echo -n "${payload_json}" | b64enc ) | |
| # Signature | |
| header_payload="${header}"."${payload}" | |
| signature=$( | |
| openssl dgst -sha256 -sign <(echo -n "${pem}") \ | |
| <(echo -n "${header_payload}") | b64enc | |
| ) | |
| #echo $header_payload | |
| #echo $signature | |
| # Create JWT | |
| JWT=$(printf '%s\n' "${header_payload}"."${signature}") | |
| echo "::add-mask::$JWT" | |
| resp=$(curl --request POST \ | |
| --url "https://api.github.com/app/installations/$app_id/access_tokens" \ | |
| --header "Accept: application/vnd.github+json" \ | |
| --header "Authorization: Bearer $JWT" \ | |
| --header "X-GitHub-Api-Version: 2022-11-28" | |
| ) | |
| token=$(jq -r '.token' <<< $resp) | |
| echo "::add-mask::$token" | |
| if [[ -z "$token" ]]; then | |
| echo "Could not fetch access token" | |
| exit 1 | |
| fi | |
| echo "TOKEN=$token" >> "$GITHUB_OUTPUT" | |
| - uses: actions/checkout@v4 | |
| with: | |
| token: ${{ steps.get-token.outputs.TOKEN }} | |
| - name: Add other remote | |
| run: | | |
| git remote add privrep https://github.com/${{ secrets.PRIVATE_REPO }} | |
| featureBranch=${{ github.event.client_payload.branch }} | |
| prId=${{ github.event.client_payload.pr_id }} | |
| base_sha=${{ github.event.client_payload.base }} | |
| localBranch="$featureBranch-$prId" | |
| git fetch privrep $featureBranch | |
| git checkout $base_sha | |
| git switch -c $localBranch | |
| git pull privrep $featureBranch --ff-only | |
| git push origin $localBranch |