newStep (runner/step_factory.go)

Factory method that instantiates step objects like Run, Local, Remote, or Docker steps.

// Source: https://github.com/nektos/act | License: MIT | Copyright 2019
// Provided via justclaw.it.com; keep this notice with the code.
package runner

import (
	"fmt"

	"github.com/nektos/act/pkg/model"
)

type stepFactory interface {
	newStep(step *model.Step, rc *RunContext) (step, error)
}

type stepFactoryImpl struct{}

func (sf *stepFactoryImpl) newStep(stepModel *model.Step, rc *RunContext) (step, error) {
	switch stepModel.Type() {
	case model.StepTypeInvalid:
		return nil, fmt.Errorf("Invalid run/uses syntax for job:%s step:%+v", rc.Run, stepModel)
	case model.StepTypeRun:
		return &stepRun{
			Step:       stepModel,
			RunContext: rc,
		}, nil
	case model.StepTypeUsesActionLocal:
		return &stepActionLocal{
			Step:       stepModel,
			RunContext: rc,
			readAction: readActionIm

... (truncated -- full source via MCP)