GitHub PR Autofill

Chrome extension (Manifest V3) that autofills GitHub PR forms from branch naming conventions. Built with Vite + Vue 3 + @crxjs/vite-plugin.

Setup

pnpm install
pnpm build       # outputs to dist/
pnpm dev         # watch mode

Load dist/ as an unpacked extension in chrome://extensions.

How it works

Injects a Fill PR button on github.com/*/compare/*. On click it:

1. Parses the source branch (type/PROJ-1234 → extracts issue key)
2. Populates the PR body with an issue link (issueBaseUrl + issueKey)
3. Assigns the PR to the current user
4. Applies configured reviewers and labels via DOM interaction with GitHub's sidebar menus

Configuration

Managed via the extension popup:

Setting	Description
Issue Base URL	Prepended to the extracted issue key (e.g. https://yourorg.atlassian.net/browse/)
Reviewers	GitHub usernames auto-assigned on fill
Labels	Labels always applied
Conditional Labels	Labels applied when branch name or base branch matches a pattern (contains / starts with / ends with)

Settings are persisted in chrome.storage.sync.

Project structure

src/
  content/index.js   # content script — DOM interaction, branch parsing
  popup/
    index.html
    main.js
    App.vue          # settings UI (Vue 3 SFC)
manifest.json
vite.config.js