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chore: prevent 'false positive' data race detection with Job.If [skip cascade] (#864)

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Initialization of the default value of the `If` field is functionally safe, but triggers the data race detector.

```
==================
WARNING: DATA RACE
Read at 0x00c00037cf78 by goroutine 10:
  code.forgejo.org/forgejo/runner/v9/act/model.(*Workflow).GetJob()
      /.../forgejo-runner/act/model/workflow.go:766 +0x2ae
  code.forgejo.org/forgejo/runner/v9/act/model.(*Run).Job()
      /.../forgejo-runner/act/model/planner.go:50 +0xab
  code.forgejo.org/forgejo/runner/v9/act/runner.setJobResult()
      /.../forgejo-runner/act/runner/job_executor.go:168
+0x7c
  code.forgejo.org/forgejo/runner/v9/act/runner.TestSetJobResultConcurrency.func3()
      /.../forgejo-runner/act/runner/job_executor_test.go:410
+0xf8

Previous write at 0x00c00037cf78 by goroutine 9:
  code.forgejo.org/forgejo/runner/v9/act/model.(*Workflow).GetJob()
      /.../forgejo-runner/act/model/workflow.go:767 +0x2ce
  code.forgejo.org/forgejo/runner/v9/act/model.(*Run).Job()
      /.../forgejo-runner/act/model/planner.go:50 +0xab
  code.forgejo.org/forgejo/runner/v9/act/runner.setJobResult()
      /.../forgejo-runner/act/runner/job_executor.go:168
+0x7c
  code.forgejo.org/forgejo/runner/v9/act/runner.TestSetJobResultConcurrency.func2()
      /.../forgejo-runner/act/runner/job_executor_test.go:405
+0xfb

Goroutine 10 (running) created at:
  code.forgejo.org/forgejo/runner/v9/act/runner.TestSetJobResultConcurrency()
      /.../forgejo-runner/act/runner/job_executor_test.go:408
+0xbac
  testing.tRunner()
      /home/mfenniak/go/pkg/mod/golang.org/toolchain@v0.0.1-go1.24.6.linux-amd64/src/testing/testing.go:1792
+0x225
  testing.(*T).Run.gowrap1()
      /home/mfenniak/go/pkg/mod/golang.org/toolchain@v0.0.1-go1.24.6.linux-amd64/src/testing/testing.go:1851
+0x44

Goroutine 9 (running) created at:
  code.forgejo.org/forgejo/runner/v9/act/runner.TestSetJobResultConcurrency()
      /.../forgejo-runner/act/runner/job_executor_test.go:403
+0xa84
  testing.tRunner()
      /home/mfenniak/go/pkg/mod/golang.org/toolchain@v0.0.1-go1.24.6.linux-amd64/src/testing/testing.go:1792
+0x225
  testing.(*T).Run.gowrap1()
      /home/mfenniak/go/pkg/mod/golang.org/toolchain@v0.0.1-go1.24.6.linux-amd64/src/testing/testing.go:1851
+0x44
==================
```

<!--start release-notes-assistant-->
<!--URL:https://code.forgejo.org/forgejo/runner-->
- other
  - [PR](https://code.forgejo.org/forgejo/runner/pulls/864): <!--number 864 --><!--line 0 --><!--description Y2hvcmU6IHByZXZlbnQgJ2ZhbHNlIHBvc2l0aXZlJyBkYXRhIHJhY2UgZGV0ZWN0aW9uIHdpdGggSm9iLklmIFtza2lwIGNhc2NhZGVd-->chore: prevent 'false positive' data race detection with Job.If [skip cascade]<!--description-->
<!--end release-notes-assistant-->

Reviewed-on: https://code.forgejo.org/forgejo/runner/pulls/864
Reviewed-by: earl-warren <earl-warren@noreply.code.forgejo.org>
Co-authored-by: Mathieu Fenniak <mathieu@fenniak.net>
Co-committed-by: Mathieu Fenniak <mathieu@fenniak.net>
This commit is contained in:
Mathieu Fenniak 2025-08-15 19:19:54 +00:00 • committed by earl-warren
parent 69a3adad21
commit d63d70c080
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GPG key ID: F128CBE6AB3A7201
3 changed files with 12 additions and 8 deletions
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2
act/runner/runner.go
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@ -154,7 +154,7 @@ func (runner *runnerImpl) NewPlanExecutor(plan *model.Plan) common.Executor {
log.Debugf("Job.RawNeeds: %v", job.RawNeeds)
log.Debugf("Job.RawRunsOn: %v", job.RawRunsOn)
log.Debugf("Job.Env: %v", job.Env)
log.Debugf("Job.If: %v", job.If)
log.Debugf("Job.If: %v", job.IfClause())
for step := range job.Steps {
if nil != job.Steps[step] {
log.Debugf("Job.Steps: %v", job.Steps[step].String())