forgejo/services/actions/notifier_helper.go
Jason Song 4011821c94
Implement actions (#21937)
Close #13539.

Co-authored by: @lunny @appleboy @fuxiaohei and others.

Related projects:
- https://gitea.com/gitea/actions-proto-def
- https://gitea.com/gitea/actions-proto-go
- https://gitea.com/gitea/act
- https://gitea.com/gitea/act_runner

### Summary

The target of this PR is to bring a basic implementation of "Actions",
an internal CI/CD system of Gitea. That means even though it has been
merged, the state of the feature is **EXPERIMENTAL**, and please note
that:

- It is disabled by default;
- It shouldn't be used in a production environment currently;
- It shouldn't be used in a public Gitea instance currently;
- Breaking changes may be made before it's stable.

**Please comment on #13539 if you have any different product design
ideas**, all decisions reached there will be adopted here. But in this
PR, we don't talk about **naming, feature-creep or alternatives**.

### ⚠️ Breaking

`gitea-actions` will become a reserved user name. If a user with the
name already exists in the database, it is recommended to rename it.

### Some important reviews

- What is `DEFAULT_ACTIONS_URL` in `app.ini` for?
  - https://github.com/go-gitea/gitea/pull/21937#discussion_r1055954954
- Why the api for runners is not under the normal `/api/v1` prefix?
  - https://github.com/go-gitea/gitea/pull/21937#discussion_r1061173592
- Why DBFS?
  - https://github.com/go-gitea/gitea/pull/21937#discussion_r1061301178
- Why ignore events triggered by `gitea-actions` bot?
  - https://github.com/go-gitea/gitea/pull/21937#discussion_r1063254103
- Why there's no permission control for actions?
  - https://github.com/go-gitea/gitea/pull/21937#discussion_r1090229868

### What it looks like

<details>

#### Manage runners

<img width="1792" alt="image"
src="https://user-images.githubusercontent.com/9418365/205870657-c72f590e-2e08-4cd4-be7f-2e0abb299bbf.png">

#### List runs

<img width="1792" alt="image"
src="https://user-images.githubusercontent.com/9418365/205872794-50fde990-2b45-48c1-a178-908e4ec5b627.png">


#### View logs

<img width="1792" alt="image"
src="https://user-images.githubusercontent.com/9418365/205872501-9b7b9000-9542-4991-8f55-18ccdada77c3.png">



</details>

### How to try it

<details>

#### 1. Start Gitea

Clone this branch and [install from
source](https://docs.gitea.io/en-us/install-from-source).

Add additional configurations in `app.ini` to enable Actions:

```ini
[actions]
ENABLED = true
```

Start it.

If all is well, you'll see the management page of runners:

<img width="1792" alt="image"
src="https://user-images.githubusercontent.com/9418365/205877365-8e30a780-9b10-4154-b3e8-ee6c3cb35a59.png">


#### 2. Start runner

Clone the [act_runner](https://gitea.com/gitea/act_runner), and follow
the
[README](https://gitea.com/gitea/act_runner/src/branch/main/README.md)
to start it.

If all is well, you'll see a new runner has been added:

<img width="1792" alt="image"
src="https://user-images.githubusercontent.com/9418365/205878000-216f5937-e696-470d-b66c-8473987d91c3.png">

#### 3. Enable actions for a repo

Create a new repo or open an existing one, check the `Actions` checkbox
in settings and submit.

<img width="1792" alt="image"
src="https://user-images.githubusercontent.com/9418365/205879705-53e09208-73c0-4b3e-a123-2dcf9aba4b9c.png">
<img width="1792" alt="image"
src="https://user-images.githubusercontent.com/9418365/205879383-23f3d08f-1a85-41dd-a8b3-54e2ee6453e8.png">

If all is well, you'll see a new tab "Actions":

<img width="1792" alt="image"
src="https://user-images.githubusercontent.com/9418365/205881648-a8072d8c-5803-4d76-b8a8-9b2fb49516c1.png">

#### 4. Upload workflow files

Upload some workflow files to `.gitea/workflows/xxx.yaml`, you can
follow the [quickstart](https://docs.github.com/en/actions/quickstart)
of GitHub Actions. Yes, Gitea Actions is compatible with GitHub Actions
in most cases, you can use the same demo:

```yaml
name: GitHub Actions Demo
run-name: ${{ github.actor }} is testing out GitHub Actions 🚀
on: [push]
jobs:
  Explore-GitHub-Actions:
    runs-on: ubuntu-latest
    steps:
      - run: echo "🎉 The job was automatically triggered by a ${{ github.event_name }} event."
      - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted by GitHub!"
      - run: echo "🔎 The name of your branch is ${{ github.ref }} and your repository is ${{ github.repository }}."
      - name: Check out repository code
        uses: actions/checkout@v3
      - run: echo "💡 The ${{ github.repository }} repository has been cloned to the runner."
      - run: echo "🖥️ The workflow is now ready to test your code on the runner."
      - name: List files in the repository
        run: |
          ls ${{ github.workspace }}
      - run: echo "🍏 This job's status is ${{ job.status }}."
```

If all is well, you'll see a new run in `Actions` tab:

<img width="1792" alt="image"
src="https://user-images.githubusercontent.com/9418365/205884473-79a874bc-171b-4aaf-acd5-0241a45c3b53.png">

#### 5. Check the logs of jobs

Click a run and you'll see the logs:

<img width="1792" alt="image"
src="https://user-images.githubusercontent.com/9418365/205884800-994b0374-67f7-48ff-be9a-4c53f3141547.png">

#### 6. Go on

You can try more examples in [the
documents](https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions)
of GitHub Actions, then you might find a lot of bugs.

Come on, PRs are welcome.

</details>

See also: [Feature Preview: Gitea
Actions](https://blog.gitea.io/2022/12/feature-preview-gitea-actions/)

---------

Co-authored-by: a1012112796 <1012112796@qq.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: ChristopherHX <christopher.homberger@web.de>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>
2023-01-31 09:45:19 +08:00

229 lines
6.6 KiB
Go

// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package actions
import (
"context"
"fmt"
"strings"
actions_model "code.gitea.io/gitea/models/actions"
issues_model "code.gitea.io/gitea/models/issues"
packages_model "code.gitea.io/gitea/models/packages"
access_model "code.gitea.io/gitea/models/perm/access"
repo_model "code.gitea.io/gitea/models/repo"
unit_model "code.gitea.io/gitea/models/unit"
user_model "code.gitea.io/gitea/models/user"
actions_module "code.gitea.io/gitea/modules/actions"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/json"
"code.gitea.io/gitea/modules/log"
api "code.gitea.io/gitea/modules/structs"
webhook_module "code.gitea.io/gitea/modules/webhook"
"code.gitea.io/gitea/services/convert"
"github.com/nektos/act/pkg/jobparser"
)
var methodCtxKey struct{}
// withMethod sets the notification method that this context currently executes.
// Used for debugging/ troubleshooting purposes.
func withMethod(ctx context.Context, method string) context.Context {
// don't overwrite
if v := ctx.Value(methodCtxKey); v != nil {
if _, ok := v.(string); ok {
return ctx
}
}
return context.WithValue(ctx, methodCtxKey, method)
}
// getMethod gets the notification method that this context currently executes.
// Default: "notify"
// Used for debugging/ troubleshooting purposes.
func getMethod(ctx context.Context) string {
if v := ctx.Value(methodCtxKey); v != nil {
if s, ok := v.(string); ok {
return s
}
}
return "notify"
}
type notifyInput struct {
// required
Repo *repo_model.Repository
Doer *user_model.User
Event webhook_module.HookEventType
// optional
Ref string
Payload api.Payloader
PullRequest *issues_model.PullRequest
}
func newNotifyInput(repo *repo_model.Repository, doer *user_model.User, event webhook_module.HookEventType) *notifyInput {
return &notifyInput{
Repo: repo,
Ref: repo.DefaultBranch,
Doer: doer,
Event: event,
}
}
func (input *notifyInput) WithDoer(doer *user_model.User) *notifyInput {
input.Doer = doer
return input
}
func (input *notifyInput) WithRef(ref string) *notifyInput {
input.Ref = ref
return input
}
func (input *notifyInput) WithPayload(payload api.Payloader) *notifyInput {
input.Payload = payload
return input
}
func (input *notifyInput) WithPullRequest(pr *issues_model.PullRequest) *notifyInput {
input.PullRequest = pr
return input
}
func (input *notifyInput) Notify(ctx context.Context) {
log.Trace("execute %v for event %v whose doer is %v", getMethod(ctx), input.Event, input.Doer.Name)
if err := notify(ctx, input); err != nil {
log.Error("an error occurred while executing the %s actions method: %v", getMethod(ctx), err)
}
}
func notify(ctx context.Context, input *notifyInput) error {
if input.Doer.IsActions() {
// avoiding triggering cyclically, for example:
// a comment of an issue will trigger the runner to add a new comment as reply,
// and the new comment will trigger the runner again.
log.Debug("ignore executing %v for event %v whose doer is %v", getMethod(ctx), input.Event, input.Doer.Name)
return nil
}
if unit_model.TypeActions.UnitGlobalDisabled() {
return nil
}
if err := input.Repo.LoadUnits(ctx); err != nil {
return fmt.Errorf("repo.LoadUnits: %w", err)
} else if !input.Repo.UnitEnabled(ctx, unit_model.TypeActions) {
return nil
}
gitRepo, err := git.OpenRepository(context.Background(), input.Repo.RepoPath())
if err != nil {
return fmt.Errorf("git.OpenRepository: %w", err)
}
defer gitRepo.Close()
// Get the commit object for the ref
commit, err := gitRepo.GetCommit(input.Ref)
if err != nil {
return fmt.Errorf("gitRepo.GetCommit: %w", err)
}
workflows, err := actions_module.DetectWorkflows(commit, input.Event)
if err != nil {
return fmt.Errorf("DetectWorkflows: %w", err)
}
if len(workflows) == 0 {
log.Trace("repo %s with commit %s couldn't find workflows", input.Repo.RepoPath(), commit.ID)
return nil
}
p, err := json.Marshal(input.Payload)
if err != nil {
return fmt.Errorf("json.Marshal: %w", err)
}
for id, content := range workflows {
run := actions_model.ActionRun{
Title: strings.SplitN(commit.CommitMessage, "\n", 2)[0],
RepoID: input.Repo.ID,
OwnerID: input.Repo.OwnerID,
WorkflowID: id,
TriggerUserID: input.Doer.ID,
Ref: input.Ref,
CommitSHA: commit.ID.String(),
IsForkPullRequest: input.PullRequest != nil && input.PullRequest.IsFromFork(),
Event: input.Event,
EventPayload: string(p),
Status: actions_model.StatusWaiting,
}
jobs, err := jobparser.Parse(content)
if err != nil {
log.Error("jobparser.Parse: %v", err)
continue
}
if err := actions_model.InsertRun(ctx, &run, jobs); err != nil {
log.Error("InsertRun: %v", err)
continue
}
if jobs, _, err := actions_model.FindRunJobs(ctx, actions_model.FindRunJobOptions{RunID: run.ID}); err != nil {
log.Error("FindRunJobs: %v", err)
} else {
for _, job := range jobs {
if err := CreateCommitStatus(ctx, job); err != nil {
log.Error("CreateCommitStatus: %v", err)
}
}
}
}
return nil
}
func newNotifyInputFromIssue(issue *issues_model.Issue, event webhook_module.HookEventType) *notifyInput {
return newNotifyInput(issue.Repo, issue.Poster, event)
}
func notifyRelease(ctx context.Context, doer *user_model.User, rel *repo_model.Release, ref string, action api.HookReleaseAction) {
if err := rel.LoadAttributes(ctx); err != nil {
log.Error("LoadAttributes: %v", err)
return
}
mode, _ := access_model.AccessLevel(ctx, doer, rel.Repo)
newNotifyInput(rel.Repo, doer, webhook_module.HookEventRelease).
WithRef(ref).
WithPayload(&api.ReleasePayload{
Action: action,
Release: convert.ToRelease(rel),
Repository: convert.ToRepo(ctx, rel.Repo, mode),
Sender: convert.ToUser(doer, nil),
}).
Notify(ctx)
}
func notifyPackage(ctx context.Context, sender *user_model.User, pd *packages_model.PackageDescriptor, action api.HookPackageAction) {
if pd.Repository == nil {
// When a package is uploaded to an organization, it could trigger an event to notify.
// So the repository could be nil, however, actions can't support that yet.
// See https://github.com/go-gitea/gitea/pull/17940
return
}
apiPackage, err := convert.ToPackage(ctx, pd, sender)
if err != nil {
log.Error("Error converting package: %v", err)
return
}
newNotifyInput(pd.Repository, sender, webhook_module.HookEventPackage).
WithPayload(&api.PackagePayload{
Action: action,
Package: apiPackage,
Sender: convert.ToUser(sender, nil),
}).
Notify(ctx)
}