Merge gitea/act into act/

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>

act/runner/job_executor.go

@@ -0,0 +1,237 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// Copyright 2022 The nektos/act Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package runner
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+	"time"
+
+	"gitea.com/gitea/act_runner/act/common"
+	"gitea.com/gitea/act_runner/act/model"
+)
+
+type jobInfo interface {
+	matrix() map[string]any
+	steps() []*model.Step
+	startContainer() common.Executor
+	stopContainer() common.Executor
+	closeContainer() common.Executor
+	interpolateOutputs() common.Executor
+	result(result string)
+}
+
+//nolint:contextcheck,gocyclo // composes many step executors
+func newJobExecutor(info jobInfo, sf stepFactory, rc *RunContext) common.Executor {
+	steps := make([]common.Executor, 0)
+	preSteps := make([]common.Executor, 0)
+	var postExecutor common.Executor
+
+	steps = append(steps, func(ctx context.Context) error {
+		logger := common.Logger(ctx)
+		if len(info.matrix()) > 0 {
+			logger.Infof("\U0001F9EA  Matrix: %v", info.matrix())
+		}
+		return nil
+	})
+
+	infoSteps := info.steps()
+
+	if len(infoSteps) == 0 {
+		return common.NewDebugExecutor("No steps found")
+	}
+
+	preSteps = append(preSteps, func(ctx context.Context) error {
+		// Have to be skipped for some Tests
+		if rc.Run == nil {
+			return nil
+		}
+		rc.ExprEval = rc.NewExpressionEvaluator(ctx)
+		// evaluate environment variables since they can contain
+		// GitHub's special environment variables.
+		for k, v := range rc.GetEnv() {
+			rc.Env[k] = rc.ExprEval.Interpolate(ctx, v)
+		}
+		return nil
+	})
+
+	for i, stepModel := range infoSteps {
+		if stepModel == nil {
+			return func(ctx context.Context) error {
+				return fmt.Errorf("invalid Step %v: missing run or uses key", i)
+			}
+		}
+		if stepModel.ID == "" {
+			stepModel.ID = strconv.Itoa(i)
+		}
+		stepModel.Number = i
+
+		step, err := sf.newStep(stepModel, rc)
+		if err != nil {
+			return common.NewErrorExecutor(err)
+		}
+
+		preExec := step.pre()
+		preSteps = append(preSteps, useStepLogger(rc, stepModel, stepStagePre, func(ctx context.Context) error {
+			logger := common.Logger(ctx)
+			preErr := preExec(ctx)
+			if preErr != nil {
+				logger.Errorf("%v", preErr)
+				common.SetJobError(ctx, preErr)
+			} else if ctx.Err() != nil {
+				logger.Errorf("%v", ctx.Err())
+				common.SetJobError(ctx, ctx.Err())
+			}
+			return preErr
+		}))
+
+		stepExec := step.main()
+		steps = append(steps, useStepLogger(rc, stepModel, stepStageMain, func(ctx context.Context) error {
+			logger := common.Logger(ctx)
+			err := stepExec(ctx)
+			if err != nil {
+				logger.Errorf("%v", err)
+				common.SetJobError(ctx, err)
+			} else if ctx.Err() != nil {
+				logger.Errorf("%v", ctx.Err())
+				common.SetJobError(ctx, ctx.Err())
+			}
+			return nil
+		}))
+
+		postExec := useStepLogger(rc, stepModel, stepStagePost, step.post())
+		if postExecutor != nil {
+			// run the post executor in reverse order
+			postExecutor = postExec.Finally(postExecutor)
+		} else {
+			postExecutor = postExec
+		}
+	}
+
+	postExecutor = postExecutor.Finally(func(ctx context.Context) error {
+		jobError := common.JobError(ctx)
+		var err error
+		if rc.Config.AutoRemove || jobError == nil {
+			// always allow 1 min for stopping and removing the runner, even if we were cancelled
+			ctx, cancel := context.WithTimeout(common.WithLogger(context.Background(), common.Logger(ctx)), time.Minute)
+			defer cancel()
+
+			logger := common.Logger(ctx)
+			// For Gitea
+			// We don't need to call `stopServiceContainers` here since it will be called by following `info.stopContainer`
+			// logger.Infof("Cleaning up services for job %s", rc.JobName)
+			// if err := rc.stopServiceContainers()(ctx); err != nil {
+			// 	logger.Errorf("Error while cleaning services: %v", err)
+			// }
+
+			logger.Infof("Cleaning up container for job %s", rc.JobName)
+			if err = info.stopContainer()(ctx); err != nil {
+				logger.Errorf("Error while stop job container: %v", err)
+			}
+
+			// For Gitea
+			// We don't need to call `NewDockerNetworkRemoveExecutor` here since it is called by above `info.stopContainer`
+			// if !rc.IsHostEnv(ctx) && rc.Config.ContainerNetworkMode == "" {
+			// 	// clean network in docker mode only
+			// 	// if the value of `ContainerNetworkMode` is empty string,
+			// 	// it means that the network to which containers are connecting is created by `act_runner`,
+			// 	// so, we should remove the network at last.
+			// 	networkName, _ := rc.networkName()
+			// 	logger.Infof("Cleaning up network for job %s, and network name is: %s", rc.JobName, networkName)
+			// 	if err := container.NewDockerNetworkRemoveExecutor(networkName)(ctx); err != nil {
+			// 		logger.Errorf("Error while cleaning network: %v", err)
+			// 	}
+			// }
+		}
+		setJobResult(ctx, info, rc, jobError == nil)
+		setJobOutputs(ctx, rc)
+
+		return err
+	})
+
+	pipeline := make([]common.Executor, 0)
+	pipeline = append(pipeline, preSteps...)
+	pipeline = append(pipeline, steps...)
+
+	return common.NewPipelineExecutor(info.startContainer(), common.NewPipelineExecutor(pipeline...).
+		Finally(func(ctx context.Context) error { //nolint:contextcheck // intentionally detaches from canceled parent
+			var cancel context.CancelFunc
+			if ctx.Err() == context.Canceled {
+				// in case of an aborted run, we still should execute the
+				// post steps to allow cleanup.
+				ctx, cancel = context.WithTimeout(common.WithLogger(context.Background(), common.Logger(ctx)), 5*time.Minute)
+				defer cancel()
+			}
+			return postExecutor(ctx)
+		}).
+		Finally(info.interpolateOutputs()).
+		Finally(info.closeContainer()))
+}
+
+func setJobResult(ctx context.Context, info jobInfo, rc *RunContext, success bool) {
+	logger := common.Logger(ctx)
+
+	jobResult := "success"
+	// we have only one result for a whole matrix build, so we need
+	// to keep an existing result state if we run a matrix
+	if len(info.matrix()) > 0 && rc.Run.Job().Result != "" {
+		jobResult = rc.Run.Job().Result
+	}
+
+	if !success {
+		jobResult = "failure"
+	}
+
+	info.result(jobResult)
+	if rc.caller != nil {
+		// set reusable workflow job result
+		rc.caller.setReusedWorkflowJobResult(rc.JobName, jobResult) // For Gitea
+		return
+	}
+
+	jobResultMessage := "succeeded"
+	if jobResult != "success" {
+		jobResultMessage = "failed"
+	}
+
+	logger.WithField("jobResult", jobResult).Infof("\U0001F3C1  Job %s", jobResultMessage)
+}
+
+func setJobOutputs(ctx context.Context, rc *RunContext) {
+	if rc.caller != nil {
+		// map outputs for reusable workflows
+		callerOutputs := make(map[string]string)
+
+		ee := rc.NewExpressionEvaluator(ctx)
+
+		for k, v := range rc.Run.Workflow.WorkflowCallConfig().Outputs {
+			callerOutputs[k] = ee.Interpolate(ctx, ee.Interpolate(ctx, v.Value))
+		}
+
+		rc.caller.runContext.Run.Job().Outputs = callerOutputs
+	}
+}
+
+func useStepLogger(rc *RunContext, stepModel *model.Step, stage stepStage, executor common.Executor) common.Executor {
+	return func(ctx context.Context) error {
+		ctx = withStepLogger(ctx, stepModel.Number, stepModel.ID, rc.ExprEval.Interpolate(ctx, stepModel.String()), stage.String())
+
+		rawLogger := common.Logger(ctx).WithField("raw_output", true)
+		logWriter := common.NewLineWriter(rc.commandHandler(ctx), func(s string) bool {
+			if rc.Config.LogOutput {
+				rawLogger.Infof("%s", s)
+			} else {
+				rawLogger.Debugf("%s", s)
+			}
+			return true
+		})
+
+		oldout, olderr := rc.JobContainer.ReplaceLogWriter(logWriter, logWriter)
+		defer rc.JobContainer.ReplaceLogWriter(oldout, olderr)
+
+		return executor(ctx)
+	}
+}