[Feature] Webhooks support

ファイル、テスト、エントリポイントは特定されていません。提案されているメタデータとプロジェクトごとの webhook 設定を確認し、リンクされている KernelCI 統合コンテキストを使って、イベントセット、認証、配信動作をメンテナーと明確にしてください。完了とは、要求されたパッチまたはシリーズのメタデータを投稿するための設計について合意できていることを意味します。

As part of the effort to enhance Kernel testing I am working with KernelCI to implement Patchwork support on their end (kernelci/kernelci-api#307). To make it happen I'd like to propose webhook feature for Patchwork, which will allow us to enable testing patches on KernelCI infrastructure and publish results and Patchwork checks.

I'd like to add webhook logic that will POST patch/series-related metadata [1] into specified URL from per-project webhook config [2]. Config will specify destination tree and branch, and events that should trigger the webhook.

[1] Example metadata

{
  "event": "patch-created",
  "revision": {
    "tree": "mainline",
    "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git",
    "branch": "master"
  },
  "submitter": {
        "id": 1,
        "url": "<URL>",
        "name": "John Doe",
        "email": "example@example.com"
  },
  "patches": [
    {
      "id": 1,
      "hash": "<HASH>",
      "web_url": "<URL>",
      "date": "2023-07-25T05:12:34.478Z",
      "mbox": "<URL>"
    }
  ]
}

[2] Example config

{
  "webhook": {
    "url": "<URL>",
    "auth": {
      "bearer_token": "<TOKEN>"
    }
  },
  "revision": {
    "tree": "mainline",
    "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git",
    "branch": "master"
  },
  "events": [
    "patch-created"
  ]
}

This is not finalized design and I am open to tweak any part of it to fit your requirements. Please let me know what you guys think. Thanks!