Fixes https://gitea.com/gitea/runner/issues/1047
The runner panics during shutdown when jobs are interrupted:
```
panic in executor: interface conversion: interface {} is nil, not map[string]error
...
gitea.com/gitea/runner/act/common.SetJobError(...)
/data/gitea/runner/act/common/job_error.go:27
gitea.com/gitea/runner/act/runner.reportStepError(...)
/data/gitea/runner/act/runner/job_executor.go:62
```
`SetJobError` did an unchecked type assertion on the job-error container stored in the context:
```go
ctx.Value(jobErrorContextKeyVal).(map[string]error)["error"] = err
```
When the container is absent — e.g. on shutdown, when a job is interrupted and `reportStepError` → `SetJobError` runs on a context where `WithJobErrorContainer` was never called — `ctx.Value` returns `nil` and asserting `nil.(map[string]error)` panics.
## Fix
Use the comma-ok form so a missing container is a no-op, matching the safe pattern already used in the sibling `JobError` function. If there's no container, there's nowhere to record the error anyway, so skipping is correct.
```go
func SetJobError(ctx context.Context, err error) {
if container, ok := ctx.Value(jobErrorContextKeyVal).(map[string]error); ok {
container["error"] = err
}
}
```
Reviewed-on: https://gitea.com/gitea/runner/pulls/1050
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: bircni <bircni@icloud.com>
Co-committed-by: bircni <bircni@icloud.com>
Merges the `gitea.com/gitea/act` fork into this repository as the `act/`
directory and consumes it as a local package. The `replace github.com/nektos/act
=> gitea.com/gitea/act` directive is removed; act's dependencies are merged
into the root `go.mod`.
- Imports rewritten: `github.com/nektos/act/pkg/...` → `gitea.com/gitea/act_runner/act/...`
(flattened — `pkg/` boundary dropped to match the layout forgejo-runner adopted).
- Dropped act's CLI (`cmd/`, `main.go`) and all upstream project files; kept
the library tree + `LICENSE`.
- Added `// Copyright <year> The Gitea Authors ...` / `// Copyright <year> nektos`
headers to 104 `.go` files.
- Pre-existing act lint violations annotated inline with
`//nolint:<linter> // pre-existing issue from nektos/act`.
`.golangci.yml` is unchanged vs `main`.
- Makefile test target: `-race -short` (matches forgejo-runner).
- Pre-existing integration test failures fixed: race in parallel executor
(atomic counters); TestSetupEnv / command_test / expression_test /
run_context_test updated to match gitea fork runtime; TestJobExecutor and
TestActionCache gated on `testing.Short()`.
Full `gitea/act` commit history is reachable via the second parent.
Co-Authored-By: Claude (Opus 4.7) <noreply@anthropic.com>
