release.yml

name: Update latest Release

on:
  release:
    types:
      - published
      - deleted
      - edited
      - unpublished
  workflow_dispatch:

jobs:
  update-latest:
    runs-on: ubuntu-latest
    steps:
      - name: Update or Create latest Release
        uses: actions/github-script@v6
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const latestTag = 'latest';

            async function getLatestReleaseSafe() {
              try {
                console.log("Fetching the latest release using the API");
                const latestResponse = await github.rest.repos.getLatestRelease({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                });
                console.log("Current latest release:", latestResponse.data.tag_name);
                return latestResponse.data;
              } catch (error) {
                if (error.status === 404) {
                  console.log("No published (non-prerelease) release found.");
                  return null;
                }
                throw error;
              }
            }

            const currentRelease = await getLatestReleaseSafe();

            // 정식 릴리즈가 하나도 없으면 latest 태그를 삭제하거나 그냥 끝낼지 선택
            if (!currentRelease) {
              console.log("No latest release. Trying to delete 'latest' tag if exists.");
              try {
                await github.rest.git.deleteRef({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  ref: `tags/${latestTag}`,
                });
                console.log("Deleted 'latest' tag because there is no published release.");
              } catch (error) {
                console.log("No 'latest' tag to delete or failed to delete:", error.message);
              }
              return;
            }

            const releaseTagName = currentRelease.tag_name;
            console.log(`Fetching commit SHA for release tag: ${releaseTagName}`);

            const tagRef = await github.rest.git.getRef({
              owner: context.repo.owner,
              repo: context.repo.repo,
              ref: `tags/${releaseTagName}`,
            });

            const currentSha = tagRef.data.object.sha;
            console.log(`Found commit SHA for latest release: ${currentSha}`);

            // latest 태그를 업데이트 또는 생성
            try {
              await github.rest.git.updateRef({
                owner: context.repo.owner,
                repo: context.repo.repo,
                ref: `tags/${latestTag}`,
                sha: currentSha,
                force: true,
              });
              console.log('Updated tag latest');
            } catch (error) {
              console.log("Failed to update 'latest', will try to create. Reason:", error.message);
              await github.rest.git.createRef({
                owner: context.repo.owner,
                repo: context.repo.repo,
                ref: `refs/tags/${latestTag}`,
                sha: currentSha,
              });
              console.log('Created tag latest');
            }