distro: add Distro() and Arch() accessors

These return the parent object of the Arch and ImageType, respectively.

Not a functional change.

Signed-off-by: Tom Gundersen <teg@jklm.no>

internal/distro/distro.go

@@ -45,6 +45,9 @@ type Arch interface {
 	// Returns an object representing a given image format for this architecture,
 	// on this distro.
 	GetImageType(imageType string) (ImageType, error)
+
+	// Returns the parent distro
+	Distro() Distro
 }
 
 // An ImageType represents a given distribution's support for a given Image Type
@@ -53,6 +56,9 @@ type ImageType interface {
 	// Returns the name of the image type.
 	Name() string
 
+	// Returns the parent architecture
+	Arch() Arch
+
 	// Returns the canonical filename for the image type.
 	Filename() string
 

internal/distro/fedora30/distro.go

@@ -48,6 +48,14 @@ type imageType struct {
 	assembler        func(uefi bool, size uint64) *osbuild.Assembler
 }
 
+func (a *arch) Distro() distro.Distro {
+	return a.distro
+}
+
+func (t *imageType) Arch() distro.Arch {
+	return t.arch
+}
+
 func (d *Fedora30) ListArches() []string {
 	archs := make([]string, 0, len(d.arches))
 	for name := range d.arches {

internal/distro/fedora31/distro.go

@@ -47,6 +47,14 @@ type arch struct {
 	imageTypes         map[string]imageType
 }
 
+func (a *arch) Distro() distro.Distro {
+	return a.distro
+}
+
+func (t *imageType) Arch() distro.Arch {
+	return t.arch
+}
+
 func (d *Fedora31) ListArches() []string {
 	archs := make([]string, 0, len(d.arches))
 	for name := range d.arches {

internal/distro/fedora32/distro.go

@@ -48,6 +48,14 @@ type imageType struct {
 	assembler        func(uefi bool, size uint64) *osbuild.Assembler
 }
 
+func (a *arch) Distro() distro.Distro {
+	return a.distro
+}
+
+func (t *imageType) Arch() distro.Arch {
+	return t.arch
+}
+
 func (d *Fedora32) ListArches() []string {
 	archs := make([]string, 0, len(d.arches))
 	for name := range d.arches {

internal/distro/fedoratest/distro.go

@@ -14,75 +14,83 @@ const modulePlatformID = "platform:f30"
 
 type FedoraTestDistro struct{}
 
-type fedoraTestDistroArch struct {
+type arch struct {
 	name   string
 	distro *FedoraTestDistro
 }
 
-type fedoraTestDistroImageType struct {
+type imageType struct {
 	name string
-	arch *fedoraTestDistroArch
+	arch *arch
+}
+
+func (a *arch) Distro() distro.Distro {
+	return a.distro
+}
+
+func (t *imageType) Arch() distro.Arch {
+	return t.arch
 }
 
 func (d *FedoraTestDistro) ListArches() []string {
 	return []string{"x86_64"}
 }
 
-func (d *FedoraTestDistro) GetArch(arch string) (distro.Arch, error) {
-	if arch != "x86_64" {
-		return nil, errors.New("invalid architecture: " + arch)
+func (d *FedoraTestDistro) GetArch(name string) (distro.Arch, error) {
+	if name != "x86_64" {
+		return nil, errors.New("invalid architecture: " + name)
 	}
 
-	return &fedoraTestDistroArch{
-		name:   arch,
+	return &arch{
+		name:   name,
 		distro: d,
 	}, nil
 }
 
-func (a *fedoraTestDistroArch) Name() string {
+func (a *arch) Name() string {
 	return a.name
 }
 
-func (a *fedoraTestDistroArch) ListImageTypes() []string {
+func (a *arch) ListImageTypes() []string {
 	return []string{"qcow2"}
 }
 
-func (a *fedoraTestDistroArch) GetImageType(imageType string) (distro.ImageType, error) {
-	if imageType != "qcow2" {
-		return nil, errors.New("invalid image type: " + imageType)
+func (a *arch) GetImageType(name string) (distro.ImageType, error) {
+	if name != "qcow2" {
+		return nil, errors.New("invalid image type: " + name)
 	}
 
-	return &fedoraTestDistroImageType{
-		name: imageType,
+	return &imageType{
+		name: name,
 		arch: a,
 	}, nil
 }
 
-func (t *fedoraTestDistroImageType) Name() string {
+func (t *imageType) Name() string {
 	return t.name
 }
 
-func (t *fedoraTestDistroImageType) Filename() string {
+func (t *imageType) Filename() string {
 	return "test.img"
 }
 
-func (t *fedoraTestDistroImageType) MIMEType() string {
+func (t *imageType) MIMEType() string {
 	return "application/x-test"
 }
 
-func (t *fedoraTestDistroImageType) Size(size uint64) uint64 {
+func (t *imageType) Size(size uint64) uint64 {
 	return size
 }
 
-func (t *fedoraTestDistroImageType) BasePackages() ([]string, []string) {
+func (t *imageType) BasePackages() ([]string, []string) {
 	return nil, nil
 }
 
-func (t *fedoraTestDistroImageType) BuildPackages() []string {
+func (t *imageType) BuildPackages() []string {
 	return nil
 }
 
-func (t *fedoraTestDistroImageType) Manifest(c *blueprint.Customizations,
+func (t *imageType) Manifest(c *blueprint.Customizations,
 	repos []rpmmd.RepoConfig,
 	packageSpecs,
 	buildPackageSpecs []rpmmd.PackageSpec,

internal/distro/rhel81/distro.go

@@ -57,6 +57,14 @@ type rhel81ImageType struct {
 	imageType *imageType
 }
 
+func (a *rhel81Arch) Distro() distro.Distro {
+	return a.distro
+}
+
+func (t *rhel81ImageType) Arch() distro.Arch {
+	return t.arch
+}
+
 func (d *RHEL81) ListArches() []string {
 	archs := make([]string, 0, len(d.arches))
 	for name := range d.arches {
@@ -66,14 +74,14 @@ func (d *RHEL81) ListArches() []string {
 	return archs
 }
 
-func (d *RHEL81) GetArch(arch string) (distro.Arch, error) {
-	a, exists := d.arches[arch]
+func (d *RHEL81) GetArch(name string) (distro.Arch, error) {
+	a, exists := d.arches[name]
 	if !exists {
-		return nil, errors.New("invalid architecture: " + arch)
+		return nil, errors.New("invalid architecture: " + name)
 	}
 
 	return &rhel81Arch{
-		name:   arch,
+		name:   name,
 		distro: d,
 		arch:   &a,
 	}, nil
@@ -92,14 +100,14 @@ func (a *rhel81Arch) ListImageTypes() []string {
 	return formats
 }
 
-func (a *rhel81Arch) GetImageType(imageType string) (distro.ImageType, error) {
-	t, exists := a.distro.imageTypes[imageType]
+func (a *rhel81Arch) GetImageType(name string) (distro.ImageType, error) {
+	t, exists := a.distro.imageTypes[name]
 	if !exists {
-		return nil, errors.New("invalid image type: " + imageType)
+		return nil, errors.New("invalid image type: " + name)
 	}
 
 	return &rhel81ImageType{
-		name:      imageType,
+		name:      name,
 		arch:      a,
 		imageType: &t,
 	}, nil

internal/distro/rhel82/distro.go

@@ -57,6 +57,14 @@ type rhel82ImageType struct {
 	imageType *imageType
 }
 
+func (a *rhel82Arch) Distro() distro.Distro {
+	return a.distro
+}
+
+func (t *rhel82ImageType) Arch() distro.Arch {
+	return t.arch
+}
+
 func (d *RHEL82) ListArches() []string {
 	archs := make([]string, 0, len(d.arches))
 	for name := range d.arches {

internal/distro/rhel83/distro.go

@@ -57,6 +57,14 @@ type rhel83ImageType struct {
 	imageType *imageType
 }
 
+func (a *rhel83Arch) Distro() distro.Distro {
+	return a.distro
+}
+
+func (t *rhel83ImageType) Arch() distro.Arch {
+	return t.arch
+}
+
 func (d *RHEL83) ListArches() []string {
 	archs := make([]string, 0, len(d.arches))
 	for name := range d.arches {

internal/distro/test_distro/distro.go

@@ -20,6 +20,14 @@ func (d *TestDistro) ListArches() []string {
 	return []string{"test_arch"}
 }
 
+func (a *testArch) Distro() distro.Distro {
+	return &TestDistro{}
+}
+
+func (t *testImageType) Arch() distro.Arch {
+	return &testArch{}
+}
+
 func (d *TestDistro) GetArch(arch string) (distro.Arch, error) {
 	if arch != "test_arch" {
 		return nil, errors.New("invalid arch: " + arch)