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ce96379aef
Skip a HookEventPullRequestSync event if it has the same CommitSHA as an existing HookEventPullRequest event in the ActionRun table. A HookEventPullRequestSync event must only create an ActionRun if the CommitSHA is different from what it was when the PR was open.
This guards against a race that can happen when the following is done in parallel:
* A commit C is pushed to a repo on branch B
* A pull request with head on branch B
it is then possible that the pull request is created first, successfully. The commit that was just pushed is not known yet but the PR only references the repository and the B branch so it is fine.
A HookEventPullRequest event is sent to the notification queue but not processed immediately.
The commit C is pushed and processed successfully. Since the PR already exists and has a head that matches the branch, the head of the PR is updated with the commit C and a HookEventPullRequestSync event is sent to the notification queue.
The HookEventPullRequest event is processed and since the head of the PR was updated to be commit C, an ActionRun with CommitSHA C is created.
The HookEventPullRequestSync event is then processed and also has a CommitSHA equal to C.
Refs: https://codeberg.org/forgejo/forgejo/issues/2009
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/2314
Co-authored-by: Earl Warren <contact@earl-warren.org>
Co-committed-by: Earl Warren <contact@earl-warren.org>
(cherry picked from commit 7b4dba3aa0)
Conflicts:
services/actions/notifier_helper.go
tests/integration/actions_trigger_test.go
trivial context conficts
services/actions/main_test.go is different in v1.21
50 lines
1.7 KiB
Go
50 lines
1.7 KiB
Go
// Copyright 2024 The Forgejo Authors
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// SPDX-License-Identifier: MIT
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package actions
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import (
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"testing"
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actions_model "code.gitea.io/gitea/models/actions"
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"code.gitea.io/gitea/models/db"
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"code.gitea.io/gitea/models/unittest"
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webhook_module "code.gitea.io/gitea/modules/webhook"
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"github.com/stretchr/testify/assert"
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)
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func Test_SkipPullRequestEvent(t *testing.T) {
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assert.NoError(t, unittest.PrepareTestDatabase())
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repoID := int64(1)
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commitSHA := "1234"
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// event is not webhook_module.HookEventPullRequestSync, never skip
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assert.False(t, SkipPullRequestEvent(db.DefaultContext, webhook_module.HookEventPullRequest, repoID, commitSHA))
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// event is webhook_module.HookEventPullRequestSync but there is nothing in the ActionRun table, do not skip
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assert.False(t, SkipPullRequestEvent(db.DefaultContext, webhook_module.HookEventPullRequestSync, repoID, commitSHA))
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// there is a webhook_module.HookEventPullRequest event but the SHA is different, do not skip
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index := int64(1)
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run := &actions_model.ActionRun{
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Index: index,
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Event: webhook_module.HookEventPullRequest,
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RepoID: repoID,
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CommitSHA: "othersha",
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}
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unittest.AssertSuccessfulInsert(t, run)
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assert.False(t, SkipPullRequestEvent(db.DefaultContext, webhook_module.HookEventPullRequestSync, repoID, commitSHA))
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// there already is a webhook_module.HookEventPullRequest with the same SHA, skip
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index++
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run = &actions_model.ActionRun{
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Index: index,
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Event: webhook_module.HookEventPullRequest,
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RepoID: repoID,
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CommitSHA: commitSHA,
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}
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unittest.AssertSuccessfulInsert(t, run)
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assert.True(t, SkipPullRequestEvent(db.DefaultContext, webhook_module.HookEventPullRequestSync, repoID, commitSHA))
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}
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