Function fetchLabelIds

actions/setup/js/create_discussion.cjs:137–173

* Fetches label node IDs for the given label names * @param {string} owner - Repository owner * @param {string} repo - Repository name * @param {string[]} labelNames - Array of label names to fetch IDs for * @returns {Promise >} Array of label objects with name a

(githubClient, owner, repo, labelNames)

 * @returns {Promise<Array<{name: string, id: string}>>} Array of label objects with name and ID
 */
async function fetchLabelIds(githubClient, owner, repo, labelNames) {
  if (!labelNames || labelNames.length === 0) {
    return [];
  }

  try {
    const allLabels = await fetchAllRepoLabels(githubClient, owner, repo);
    const labelMap = new Map(allLabels.map(label => [label.name.toLowerCase(), label]));

    // Match requested labels (case-insensitive)
    const matchedLabels = [];
    const unmatchedLabels = [];

    for (const requestedLabel of labelNames) {
      const normalizedName = requestedLabel.toLowerCase();
      const matchedLabel = labelMap.get(normalizedName);
      if (matchedLabel) {
        matchedLabels.push({ name: matchedLabel.name, id: matchedLabel.id });
      } else {
        unmatchedLabels.push(requestedLabel);
      }
    }

    if (unmatchedLabels.length > 0) {
      core.warning(`Could not find label IDs for: ${unmatchedLabels.join(", ")}`);
      const MAX_DISPLAY = 20;
      const displayedLabels = allLabels.slice(0, MAX_DISPLAY).map(l => l.name);
      const truncationNote = allLabels.length > MAX_DISPLAY ? ` … (${allLabels.length} total)` : "";
      core.info(`These labels may not exist in the repository. Available labels: ${displayedLabels.join(", ")}${truncationNote}`);
    }

    return matchedLabels;
  } catch (error) {
    core.warning(`Failed to fetch label IDs: ${getErrorMessage(error)}`);
    return [];
  }
}

/**
 * Applies labels to a discussion using GraphQL