Move versioned references of inspect functions to the daemon.

Leaving only one versioned main function that a backend must implement.

Signed-off-by: David Calavera <david.calavera@gmail.com>

api/server/router/container/backend.go

@@ -1,4 +1,4 @@
-// +build windows
+// +build !windows
 
 package container
 
@@ -7,9 +7,10 @@ import (
 	"time"
 
 	"github.com/docker/docker/api/types"
-	"github.com/docker/docker/api/types/versions/v1p20"
 	"github.com/docker/docker/daemon"
+	"github.com/docker/docker/daemon/exec"
 	"github.com/docker/docker/pkg/archive"
+	"github.com/docker/docker/pkg/version"
 	"github.com/docker/docker/runconfig"
 )
 
@@ -22,17 +23,12 @@ type Backend interface {
 	ContainerCopy(name string, res string) (io.ReadCloser, error)
 	ContainerCreate(params *daemon.ContainerCreateConfig) (types.ContainerCreateResponse, error)
 	ContainerExecCreate(config *runconfig.ExecConfig) (string, error)
-	ContainerExecInspect(id string) (*daemon.ExecConfig, error)
+	ContainerExecInspect(id string) (*exec.Config, error)
 	ContainerExecResize(name string, height, width int) error
 	ContainerExecStart(name string, stdin io.ReadCloser, stdout io.Writer, stderr io.Writer) error
 	ContainerExport(name string, out io.Writer) error
 	ContainerExtractToDir(name, path string, noOverwriteDirNonDir bool, content io.Reader) error
-	ContainerInspect(name string, size bool) (*types.ContainerJSON, error)
+	ContainerInspect(name string, size bool, version version.Version) (interface{}, error)
-	ContainerInspect120(name string) (*v1p20.ContainerJSON, error)
-	// unix version
-	//ContainerInspectPre120(name string) (*v1p19.ContainerJSON, error)
-	// windows version
-	ContainerInspectPre120(name string) (*types.ContainerJSON, error)
 	ContainerKill(name string, sig uint64) error
 	ContainerLogs(containerName string, config *daemon.ContainerLogsConfig) error
 	ContainerPause(name string) error

api/server/router/container/backend_unix.go

@@ -1,56 +0,0 @@
-// +build !windows
-
-package container
-
-import (
-	"io"
-	"time"
-
-	"github.com/docker/docker/api/types"
-	"github.com/docker/docker/api/types/versions/v1p19"
-	"github.com/docker/docker/api/types/versions/v1p20"
-	"github.com/docker/docker/daemon"
-	"github.com/docker/docker/pkg/archive"
-	"github.com/docker/docker/runconfig"
-)
-
-// Backend is all the methods that need to be implemented to provide
-// container specific functionality
-type Backend interface {
-	ContainerArchivePath(name string, path string) (content io.ReadCloser, stat *types.ContainerPathStat, err error)
-	ContainerAttachWithLogs(prefixOrName string, c *daemon.ContainerAttachWithLogsConfig) error
-	ContainerChanges(name string) ([]archive.Change, error)
-	ContainerCopy(name string, res string) (io.ReadCloser, error)
-	ContainerCreate(params *daemon.ContainerCreateConfig) (types.ContainerCreateResponse, error)
-	ContainerExecCreate(config *runconfig.ExecConfig) (string, error)
-	ContainerExecInspect(id string) (*daemon.ExecConfig, error)
-	ContainerExecResize(name string, height, width int) error
-	ContainerExecStart(name string, stdin io.ReadCloser, stdout io.Writer, stderr io.Writer) error
-	ContainerExport(name string, out io.Writer) error
-	ContainerExtractToDir(name, path string, noOverwriteDirNonDir bool, content io.Reader) error
-	ContainerInspect(name string, size bool) (*types.ContainerJSON, error)
-	ContainerInspect120(name string) (*v1p20.ContainerJSON, error)
-	// unix version
-	ContainerInspectPre120(name string) (*v1p19.ContainerJSON, error)
-	// windows version
-	//ContainerInspectPre120(name string) (*types.ContainerJSON, error)
-	ContainerKill(name string, sig uint64) error
-	ContainerLogs(containerName string, config *daemon.ContainerLogsConfig) error
-	ContainerPause(name string) error
-	ContainerRename(oldName, newName string) error
-	ContainerResize(name string, height, width int) error
-	ContainerRestart(name string, seconds int) error
-	ContainerRm(name string, config *daemon.ContainerRmConfig) error
-	Containers(config *daemon.ContainersConfig) ([]*types.Container, error)
-	ContainerStart(name string, hostConfig *runconfig.HostConfig) error
-	ContainerStatPath(name string, path string) (stat *types.ContainerPathStat, err error)
-	ContainerStats(prefixOrName string, config *daemon.ContainerStatsConfig) error
-	ContainerStop(name string, seconds int) error
-	ContainerTop(name string, psArgs string) (*types.ContainerProcessList, error)
-	ContainerUnpause(name string) error
-	ContainerWait(name string, timeout time.Duration) (int, error)
-	ContainerWsAttachWithLogs(prefixOrName string, c *daemon.ContainerWsAttachWithLogsConfig) error
-	ExecExists(name string) (bool, error)
-	Exists(id string) bool
-	IsPaused(id string) bool
-}

api/server/router/container/inspect.go

@@ -11,20 +11,8 @@ import (
 func (s *containerRouter) getContainersByName(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
 	displaySize := httputils.BoolValue(r, "size")
 
-	var json interface{}
-	var err error
-
 	version := httputils.VersionFromContext(ctx)
-
+	json, err := s.backend.ContainerInspect(vars["name"], displaySize, version)
-	switch {
-	case version.LessThan("1.20"):
-		json, err = s.backend.ContainerInspectPre120(vars["name"])
-	case version.Equal("1.20"):
-		json, err = s.backend.ContainerInspect120(vars["name"])
-	default:
-		json, err = s.backend.ContainerInspect(vars["name"], displaySize)
-	}
-
 	if err != nil {
 		return err
 	}

daemon/inspect.go

@@ -9,12 +9,23 @@ import (
 	"github.com/docker/docker/daemon/exec"
 	"github.com/docker/docker/daemon/network"
 	"github.com/docker/docker/layer"
+	"github.com/docker/docker/pkg/version"
 )
 
 // ContainerInspect returns low-level information about a
 // container. Returns an error if the container cannot be found, or if
 // there is an error getting the data.
-func (daemon *Daemon) ContainerInspect(name string, size bool) (*types.ContainerJSON, error) {
+func (daemon *Daemon) ContainerInspect(name string, size bool, version version.Version) (interface{}, error) {
+	switch {
+	case version.LessThan("1.20"):
+		return daemon.containerInspectPre120(name)
+	case version.Equal("1.20"):
+		return daemon.containerInspect120(name)
+	}
+	return daemon.containerInspectCurrent(name, size)
+}
+
+func (daemon *Daemon) containerInspectCurrent(name string, size bool) (*types.ContainerJSON, error) {
 	container, err := daemon.Get(name)
 	if err != nil {
 		return nil, err
@@ -53,8 +64,8 @@ func (daemon *Daemon) ContainerInspect(name string, size bool) (*types.Container
 	}, nil
 }
 
-// ContainerInspect120 serializes the master version of a container into a json type.
+// containerInspect120 serializes the master version of a container into a json type.
-func (daemon *Daemon) ContainerInspect120(name string) (*v1p20.ContainerJSON, error) {
+func (daemon *Daemon) containerInspect120(name string) (*v1p20.ContainerJSON, error) {
 	container, err := daemon.Get(name)
 	if err != nil {
 		return nil, err

daemon/inspect_unix.go

@@ -17,8 +17,8 @@ func setPlatformSpecificContainerFields(container *Container, contJSONBase *type
 	return contJSONBase
 }
 
-// ContainerInspectPre120 gets containers for pre 1.20 APIs.
+// containerInspectPre120 gets containers for pre 1.20 APIs.
-func (daemon *Daemon) ContainerInspectPre120(name string) (*v1p19.ContainerJSON, error) {
+func (daemon *Daemon) containerInspectPre120(name string) (*v1p19.ContainerJSON, error) {
 	container, err := daemon.Get(name)
 	if err != nil {
 		return nil, err

daemon/inspect_windows.go

@@ -21,7 +21,7 @@ func addMountPoints(container *Container) []types.MountPoint {
 	return mountPoints
 }
 
-// ContainerInspectPre120 get containers for pre 1.20 APIs.
+// containerInspectPre120 get containers for pre 1.20 APIs.
-func (daemon *Daemon) ContainerInspectPre120(name string) (*types.ContainerJSON, error) {
+func (daemon *Daemon) containerInspectPre120(name string) (*types.ContainerJSON, error) {
-	return daemon.ContainerInspect(name, false)
+	return daemon.containerInspectCurrent(name, false)
 }