feat: Copy configured labels from issues to PR.

[kimseungbin]

Feature Description

• Implements a workflow to automatically sync labels from related issues to a Pull Request.
• When a PR is opened or updated, the workflow should:
  • Identify all issues linked to the PR (issues the PR will close upon merging).
  • Copy all configured labels from those issues to the PR.
  • In cases where multiple issues are linked, apply the labels fro the issue with the highest priority
  • Labels must have priority property.
• It must be implemented via TypeScript.

Why is this feature needed?

• Enhances automation for version bumping by associating PRs with predefined labels from issues.
• Ensures consistency between issues and PRs, improving traceability and predictability.
• Facilitates automated versioning by allowing the PR's labels to determine the appropriate version bump and tag for the merge commit.

Additional Context

• The workflow should seamlessly integrate with existing tag-and-release action.

[kimseungbin]

@coderabbitai Assuming I'm creating a TypeScript based GitHub action, suggest file names and directory structure for this. (Not file content)

[coderabbitai[bot]]

[!TIP] For best results, initiate chat on the files or code changes.

@kimseungbin Sure, here's a suggested directory structure and file names for your TypeScript-based GitHub action:

├── .github
│   └── workflows
│       └── label-sync.yml
├── src
│   ├── index.ts
│   ├── action.ts
│   ├── utils
│       ├── githubClient.ts
│       └── labelUtils.ts
├── package.json
├── tsconfig.json
├── .gitignore
└── README.md

Explanation:

• .github/workflows/label-sync.yml: The workflow file that triggers your action when a PR is opened or updated.
• src/index.ts: The entry point of your GitHub action.
• src/action.ts: Contains the main logic to sync labels from issues to PRs.
• src/utils/githubClient.ts: Utility functions for interacting with the GitHub API.
• src/utils/labelUtils.ts: Functions for handling labels and determining priorities.
• package.json: Defines dependencies and scripts for your action.
• tsconfig.json: TypeScript configuration file.
• .gitignore: Specifies files to be ignored by Git.
• README.md: Documentation for your GitHub action.

Let me know if you need further details!