Function updateBody

actions/setup/js/update_pr_description_helpers.cjs:95–150

* Update body content with the specified operation * Generic helper for updating markdown bodies (PRs, releases, discussions, etc.) * @param {Object} params - Update parameters * @param {string} params.currentBody - Current body content * @param {string} params.newContent - New content to add/re

(params)

 * @returns {string} Updated body content
 */
function updateBody(params) {
  const { currentBody, newContent, operation, workflowName, runUrl, workflowId, includeFooter = true, historyUrl } = params;
  // When footer is enabled use the full footer (includes install instructions, XML marker, etc.)
  // When footer is disabled still add standalone workflow-id marker for searchability
  const aiFooter = includeFooter ? buildAIFooter(workflowName, runUrl, historyUrl) : "";
  const workflowIdMarker = !includeFooter && workflowId ? `\n\n${generateWorkflowIdMarker(workflowId)}` : "";

  // Sanitize new content to prevent injection attacks
  const sanitizedNewContent = sanitizeContent(newContent);

  // Inject CAUTION at top of new content if threat detection warning was raised
  const { detectionCaution } = assembleMarkdownBodyParts({
    includeFooter: false,
    workflowName,
    runUrl,
  });
  const contentWithCaution = detectionCaution ? `${detectionCaution}\n\n${sanitizedNewContent}` : sanitizedNewContent;

  if (operation === "replace") {
    // Replace: use new content with optional AI footer
    core.info("Operation: replace (full body replacement)");
    return contentWithCaution + aiFooter + workflowIdMarker;
  }

  if (operation === "replace-island") {
    // Try to find existing island for this workflow ID
    const island = findIsland(currentBody, workflowId);
    const startMarker = buildIslandStartMarker(workflowId);
    const endMarker = buildIslandEndMarker(workflowId);
    const islandContent = `${startMarker}\n${contentWithCaution}${aiFooter}${workflowIdMarker}\n${endMarker}`;

    if (island.found) {
      // Replace the island content
      core.info(`Operation: replace-island (updating existing island for workflow ${workflowId})`);
      const before = currentBody.substring(0, island.startIndex);
      const after = currentBody.substring(island.endIndex);
      return before + islandContent + after;
    } else {
      // Island not found, fall back to append mode
      core.info(`Operation: replace-island (island not found for workflow ${workflowId}, falling back to append)`);
      return currentBody + `\n\n---\n\n${islandContent}`;
    }
  }

  if (operation === "prepend") {
    // Prepend: add content, AI footer (if enabled), and horizontal line at the start
    core.info("Operation: prepend (add to start with separator)");
    const prependSection = `${contentWithCaution}${aiFooter}${workflowIdMarker}\n\n---\n\n`;
    return prependSection + currentBody;
  }

  // Default to append
  core.info("Operation: append (add to end with separator)");
  const appendSection = `\n\n---\n\n${contentWithCaution}${aiFooter}${workflowIdMarker}`;
  return currentBody + appendSection;
}

module.exports = {