feat: Allow building without docker support (#1507)

* feat: Allow building without docker support

* fix macos build tag

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

pkg/container/container_types.go

@@ -0,0 +1,70 @@
+package container
+
+import (
+	"context"
+	"io"
+
+	"github.com/nektos/act/pkg/common"
+)
+
+// NewContainerInput the input for the New function
+type NewContainerInput struct {
+	Image       string
+	Username    string
+	Password    string
+	Entrypoint  []string
+	Cmd         []string
+	WorkingDir  string
+	Env         []string
+	Binds       []string
+	Mounts      map[string]string
+	Name        string
+	Stdout      io.Writer
+	Stderr      io.Writer
+	NetworkMode string
+	Privileged  bool
+	UsernsMode  string
+	Platform    string
+	Options     string
+}
+
+// FileEntry is a file to copy to a container
+type FileEntry struct {
+	Name string
+	Mode int64
+	Body string
+}
+
+// Container for managing docker run containers
+type Container interface {
+	Create(capAdd []string, capDrop []string) common.Executor
+	Copy(destPath string, files ...*FileEntry) common.Executor
+	CopyDir(destPath string, srcPath string, useGitIgnore bool) common.Executor
+	GetContainerArchive(ctx context.Context, srcPath string) (io.ReadCloser, error)
+	Pull(forcePull bool) common.Executor
+	Start(attach bool) common.Executor
+	Exec(command []string, env map[string]string, user, workdir string) common.Executor
+	UpdateFromEnv(srcPath string, env *map[string]string) common.Executor
+	UpdateFromImageEnv(env *map[string]string) common.Executor
+	UpdateFromPath(env *map[string]string) common.Executor
+	Remove() common.Executor
+	Close() common.Executor
+	ReplaceLogWriter(io.Writer, io.Writer) (io.Writer, io.Writer)
+}
+
+// NewDockerBuildExecutorInput the input for the NewDockerBuildExecutor function
+type NewDockerBuildExecutorInput struct {
+	ContextDir string
+	Container  Container
+	ImageTag   string
+	Platform   string
+}
+
+// NewDockerPullExecutorInput the input for the NewDockerPullExecutor function
+type NewDockerPullExecutorInput struct {
+	Image     string
+	ForcePull bool
+	Platform  string
+	Username  string
+	Password  string
+}

pkg/container/docker_auth.go

@@ -1,3 +1,5 @@
+//go:build !(WITHOUT_DOCKER || !(linux || darwin || windows))
+
 package container
 
 import (

pkg/container/docker_build.go

@@ -1,3 +1,5 @@
+//go:build !(WITHOUT_DOCKER || !(linux || darwin || windows))
+
 package container
 
 import (
@@ -16,14 +18,6 @@ import (
 	"github.com/nektos/act/pkg/common"
 )
 
-// NewDockerBuildExecutorInput the input for the NewDockerBuildExecutor function
-type NewDockerBuildExecutorInput struct {
-	ContextDir string
-	Container  Container
-	ImageTag   string
-	Platform   string
-}
-
 // NewDockerBuildExecutor function to create a run executor for the container
 func NewDockerBuildExecutor(input NewDockerBuildExecutorInput) common.Executor {
 	return func(ctx context.Context) error {

pkg/container/docker_cli.go

@@ -1,3 +1,5 @@
+//go:build !(WITHOUT_DOCKER || !(linux || darwin || windows))
+
 // This file is exact copy of https://github.com/docker/cli/blob/9ac8584acfd501c3f4da0e845e3a40ed15c85041/cli/command/container/opts.go
 // appended with license information.
 //

pkg/container/docker_images.go

@@ -1,3 +1,5 @@
+//go:build !(WITHOUT_DOCKER || !(linux || darwin || windows))
+
 package container
 
 import (

pkg/container/docker_logger.go

@@ -1,3 +1,5 @@
+//go:build !(WITHOUT_DOCKER || !(linux || darwin || windows))
+
 package container
 
 import (

pkg/container/docker_pull.go

@@ -1,3 +1,5 @@
+//go:build !(WITHOUT_DOCKER || !(linux || darwin || windows))
+
 package container
 
 import (
@@ -12,15 +14,6 @@ import (
 	"github.com/nektos/act/pkg/common"
 )
 
-// NewDockerPullExecutorInput the input for the NewDockerPullExecutor function
-type NewDockerPullExecutorInput struct {
-	Image     string
-	ForcePull bool
-	Platform  string
-	Username  string
-	Password  string
-}
-
 // NewDockerPullExecutor function to create a run executor for the container
 func NewDockerPullExecutor(input NewDockerPullExecutorInput) common.Executor {
 	return func(ctx context.Context) error {

pkg/container/docker_run.go

@@ -1,3 +1,5 @@
+//go:build !(WITHOUT_DOCKER || !(linux || darwin || windows))
+
 package container
 
 import (
@@ -38,51 +40,6 @@ import (
 	"github.com/nektos/act/pkg/common"
 )
 
-// NewContainerInput the input for the New function
-type NewContainerInput struct {
-	Image       string
-	Username    string
-	Password    string
-	Entrypoint  []string
-	Cmd         []string
-	WorkingDir  string
-	Env         []string
-	Binds       []string
-	Mounts      map[string]string
-	Name        string
-	Stdout      io.Writer
-	Stderr      io.Writer
-	NetworkMode string
-	Privileged  bool
-	UsernsMode  string
-	Platform    string
-	Options     string
-}
-
-// FileEntry is a file to copy to a container
-type FileEntry struct {
-	Name string
-	Mode int64
-	Body string
-}
-
-// Container for managing docker run containers
-type Container interface {
-	Create(capAdd []string, capDrop []string) common.Executor
-	Copy(destPath string, files ...*FileEntry) common.Executor
-	CopyDir(destPath string, srcPath string, useGitIgnore bool) common.Executor
-	GetContainerArchive(ctx context.Context, srcPath string) (io.ReadCloser, error)
-	Pull(forcePull bool) common.Executor
-	Start(attach bool) common.Executor
-	Exec(command []string, env map[string]string, user, workdir string) common.Executor
-	UpdateFromEnv(srcPath string, env *map[string]string) common.Executor
-	UpdateFromImageEnv(env *map[string]string) common.Executor
-	UpdateFromPath(env *map[string]string) common.Executor
-	Remove() common.Executor
-	Close() common.Executor
-	ReplaceLogWriter(io.Writer, io.Writer) (io.Writer, io.Writer)
-}
-
 // NewContainer creates a reference to a container
 func NewContainer(input *NewContainerInput) ExecutionsEnvironment {
 	cr := new(containerReference)

pkg/container/docker_stub.go

@@ -0,0 +1,57 @@
+//go:build WITHOUT_DOCKER || !(linux || darwin || windows)
+
+package container
+
+import (
+	"context"
+	"runtime"
+
+	"github.com/docker/docker/api/types"
+	"github.com/nektos/act/pkg/common"
+	"github.com/pkg/errors"
+)
+
+// ImageExistsLocally returns a boolean indicating if an image with the
+// requested name, tag and architecture exists in the local docker image store
+func ImageExistsLocally(ctx context.Context, imageName string, platform string) (bool, error) {
+	return false, errors.New("Unsupported Operation")
+}
+
+// RemoveImage removes image from local store, the function is used to run different
+// container image architectures
+func RemoveImage(ctx context.Context, imageName string, force bool, pruneChildren bool) (bool, error) {
+	return false, errors.New("Unsupported Operation")
+}
+
+// NewDockerBuildExecutor function to create a run executor for the container
+func NewDockerBuildExecutor(input NewDockerBuildExecutorInput) common.Executor {
+	return func(ctx context.Context) error {
+		return errors.New("Unsupported Operation")
+	}
+}
+
+// NewDockerPullExecutor function to create a run executor for the container
+func NewDockerPullExecutor(input NewDockerPullExecutorInput) common.Executor {
+	return func(ctx context.Context) error {
+		return errors.New("Unsupported Operation")
+	}
+}
+
+// NewContainer creates a reference to a container
+func NewContainer(input *NewContainerInput) ExecutionsEnvironment {
+	return nil
+}
+
+func RunnerArch(ctx context.Context) string {
+	return runtime.GOOS
+}
+
+func GetHostInfo(ctx context.Context) (info types.Info, err error) {
+	return types.Info{}, nil
+}
+
+func NewDockerVolumeRemoveExecutor(volume string, force bool) common.Executor {
+	return func(ctx context.Context) error {
+		return nil
+	}
+}

pkg/container/docker_volume.go

@@ -1,3 +1,5 @@
+//go:build !(WITHOUT_DOCKER || !(linux || darwin || windows))
+
 package container
 
 import (