Move lifecycle package to sub-directory

acceptance/restorer_test.go

@@ -14,9 +14,9 @@ import (
 	"github.com/sclevine/spec"
 	"github.com/sclevine/spec/report"
 
-	"github.com/buildpacks/lifecycle"
 	"github.com/buildpacks/lifecycle/api"
 	"github.com/buildpacks/lifecycle/cmd"
+	"github.com/buildpacks/lifecycle/phase"
 	h "github.com/buildpacks/lifecycle/testhelpers"
 )
 
@@ -198,7 +198,7 @@ func testRestorerFunc(platformAPI string) func(t *testing.T, when spec.G, it spe
 					h.WithArgs("-build-image", restoreRegFixtures.SomeCacheImage), // some-cache-image simulates a builder image in a registry
 				)
 				t.Log("records builder image digest in analyzed.toml")
-				analyzedMD, err := lifecycle.Config.ReadAnalyzed(filepath.Join(copyDir, "layers", "analyzed.toml"), cmd.DefaultLogger)
+				analyzedMD, err := phase.Config.ReadAnalyzed(filepath.Join(copyDir, "layers", "analyzed.toml"), cmd.DefaultLogger)
 				h.AssertNil(t, err)
 				h.AssertStringContains(t, analyzedMD.BuildImage.Reference, restoreRegFixtures.SomeCacheImage+"@sha256:")
 				t.Log("writes builder manifest and config to the kaniko cache")
@@ -230,7 +230,7 @@ func testRestorerFunc(platformAPI string) func(t *testing.T, when spec.G, it spe
 					),
 				)
 				t.Log("updates run image reference in analyzed.toml to include digest and target data")
-				analyzedMD, err := lifecycle.Config.ReadAnalyzed(filepath.Join(copyDir, "layers", "some-extend-true-analyzed.toml"), cmd.DefaultLogger)
+				analyzedMD, err := phase.Config.ReadAnalyzed(filepath.Join(copyDir, "layers", "some-extend-true-analyzed.toml"), cmd.DefaultLogger)
 				h.AssertNil(t, err)
 				h.AssertStringContains(t, analyzedMD.RunImage.Reference, restoreRegFixtures.ReadOnlyRunImage+"@sha256:")
 				h.AssertEq(t, analyzedMD.RunImage.Image, restoreRegFixtures.ReadOnlyRunImage)
@@ -266,7 +266,7 @@ func testRestorerFunc(platformAPI string) func(t *testing.T, when spec.G, it spe
 				)
 				if api.MustParse(platformAPI).AtLeast("0.12") {
 					t.Log("updates run image reference in analyzed.toml to include digest and target data")
-					analyzedMD, err := lifecycle.Config.ReadAnalyzed(filepath.Join(copyDir, "layers", "some-extend-false-analyzed.toml"), cmd.DefaultLogger)
+					analyzedMD, err := phase.Config.ReadAnalyzed(filepath.Join(copyDir, "layers", "some-extend-false-analyzed.toml"), cmd.DefaultLogger)
 					h.AssertNil(t, err)
 					h.AssertStringContains(t, analyzedMD.RunImage.Reference, restoreRegFixtures.ReadOnlyRunImage+"@sha256:")
 					h.AssertEq(t, analyzedMD.RunImage.Image, restoreRegFixtures.ReadOnlyRunImage)
@@ -279,7 +279,7 @@ func testRestorerFunc(platformAPI string) func(t *testing.T, when spec.G, it spe
 					h.AssertEq(t, len(fis), 1) // .gitkeep
 				} else {
 					t.Log("doesn't update analyzed.toml")
-					analyzedMD, err := lifecycle.Config.ReadAnalyzed(filepath.Join(copyDir, "layers", "some-extend-false-analyzed.toml"), cmd.DefaultLogger)
+					analyzedMD, err := phase.Config.ReadAnalyzed(filepath.Join(copyDir, "layers", "some-extend-false-analyzed.toml"), cmd.DefaultLogger)
 					h.AssertNil(t, err)
 					h.AssertNil(t, analyzedMD.RunImage.TargetMetadata)
 				}
@@ -306,7 +306,7 @@ func testRestorerFunc(platformAPI string) func(t *testing.T, when spec.G, it spe
 						),
 					)
 					t.Log("updates run image reference in analyzed.toml to include digest and target data")
-					analyzedMD, err := lifecycle.Config.ReadAnalyzed(filepath.Join(copyDir, "layers", "some-extend-false-analyzed.toml"), cmd.DefaultLogger)
+					analyzedMD, err := phase.Config.ReadAnalyzed(filepath.Join(copyDir, "layers", "some-extend-false-analyzed.toml"), cmd.DefaultLogger)
 					h.AssertNil(t, err)
 					h.AssertStringDoesNotContain(t, analyzedMD.RunImage.Reference, "@sha256:") // daemon image ID
 					h.AssertEq(t, analyzedMD.RunImage.Image, restoreRegFixtures.ReadOnlyRunImage)

buildpack/build.go

@@ -56,7 +56,11 @@ type BuildOutputs struct {
 	Slices      []layers.Slice
 }
 
-//go:generate mockgen -package testmock -destination ../testmock/build_executor.go github.com/buildpacks/lifecycle/buildpack BuildExecutor
+// BuildExecutor executes a single buildpack's `./bin/build` binary,
+// providing inputs as defined in the Buildpack Interface Specification,
+// and processing outputs for the platform.
+//
+//go:generate mockgen -package testmock -destination ../phase/testmock/build_executor.go github.com/buildpacks/lifecycle/buildpack BuildExecutor
 type BuildExecutor interface {
 	Build(d BpDescriptor, inputs BuildInputs, logger log.Logger) (BuildOutputs, error)
 }

buildpack/build_test.go

@@ -24,11 +24,11 @@ import (
 	"github.com/buildpacks/lifecycle/launch"
 	"github.com/buildpacks/lifecycle/layers"
 	llog "github.com/buildpacks/lifecycle/log"
+	"github.com/buildpacks/lifecycle/phase/testmock"
 	h "github.com/buildpacks/lifecycle/testhelpers"
-	"github.com/buildpacks/lifecycle/testmock"
 )
 
-//go:generate mockgen -package testmock -destination testmock/env.go github.com/buildpacks/lifecycle BuildEnv
+//go:generate mockgen -package testmock -destination testmock/env.go github.com/buildpacks/lifecycle/phase BuildEnv
 
 func TestBuild(t *testing.T) {
 	spec.Run(t, "unit-build", testBuild, spec.Report(report.Terminal{}))

buildpack/descriptor.go

@@ -5,7 +5,10 @@ const (
 	KindExtension = "Extension"
 )
 
-//go:generate mockgen -package testmock -destination ../testmock/component_descriptor.go github.com/buildpacks/lifecycle/buildpack Descriptor
+// Descriptor exposes information contained in a buildpack.toml or extension.toml
+// that is generic to buildpacks and/or image extensions.
+//
+//go:generate mockgen -package testmock -destination ../lifecycle/testmock/component_descriptor.go github.com/buildpacks/lifecycle/buildpack Descriptor
 type Descriptor interface {
 	API() string
 	Homepage() string

buildpack/detect.go

@@ -39,7 +39,12 @@ type DetectOutputs struct {
 	Err    error  `toml:"-"`
 }
 
-//go:generate mockgen -package testmock -destination ../testmock/detect_executor.go github.com/buildpacks/lifecycle/buildpack DetectExecutor
+// DetectExecutor executes a single buildpack or image extension's `./bin/detect` binary,
+// providing inputs as defined in the Buildpack Interface Specification,
+// and processing outputs for the platform.
+// For image extensions (where `./bin/detect` is optional), pre-populated outputs are processed here.
+//
+//go:generate mockgen -package testmock -destination ../phase/testmock/detect_executor.go github.com/buildpacks/lifecycle/buildpack DetectExecutor
 type DetectExecutor interface {
 	Detect(d Descriptor, inputs DetectInputs, logger log.Logger) DetectOutputs
 }

buildpack/generate.go

@@ -34,7 +34,12 @@ type GenerateOutputs struct {
 	MetRequires []string
 }
 
-//go:generate mockgen -package testmock -destination ../testmock/generate_executor.go github.com/buildpacks/lifecycle/buildpack GenerateExecutor
+// GenerateExecutor executes a single image extension's `./bin/generate` binary,
+// providing inputs as defined in the Buildpack Interface Specification,
+// and processing outputs for the platform.
+// Pre-populated outputs for image extensions that are missing `./bin/generate` are processed here.
+//
+//go:generate mockgen -package testmock -destination ../phase/testmock/generate_executor.go github.com/buildpacks/lifecycle/buildpack GenerateExecutor
 type GenerateExecutor interface {
 	Generate(d ExtDescriptor, inputs GenerateInputs, logger log.Logger) (GenerateOutputs, error)
 }

buildpack/generate_test.go

@@ -19,8 +19,8 @@ import (
 	"github.com/buildpacks/lifecycle/api"
 	"github.com/buildpacks/lifecycle/buildpack"
 	llog "github.com/buildpacks/lifecycle/log"
+	"github.com/buildpacks/lifecycle/phase/testmock"
 	h "github.com/buildpacks/lifecycle/testhelpers"
-	"github.com/buildpacks/lifecycle/testmock"
 )
 
 func TestGenerate(t *testing.T) {

cache/image_cache_test.go

@@ -7,8 +7,6 @@ import (
 	"path/filepath"
 	"testing"
 
-	cacheMock "github.com/buildpacks/lifecycle/testmock/cache"
-
 	"github.com/golang/mock/gomock"
 
 	"github.com/buildpacks/imgutil/fakes"
@@ -20,6 +18,7 @@ import (
 	"github.com/buildpacks/lifecycle/cache"
 	"github.com/buildpacks/lifecycle/cmd"
 	"github.com/buildpacks/lifecycle/log"
+	testmockcache "github.com/buildpacks/lifecycle/phase/testmock/cache"
 	"github.com/buildpacks/lifecycle/platform"
 	h "github.com/buildpacks/lifecycle/testhelpers"
 )
@@ -48,8 +47,8 @@ func testImageCache(t *testing.T, when spec.G, it spec.S) {
 		fakeOriginalImage = fakes.NewImage("fake-image", "", local.IDIdentifier{ImageID: "fakeOriginalImage"})
 		fakeNewImage = fakes.NewImage("fake-image", "", local.IDIdentifier{ImageID: "fakeImage"})
 		mockController := gomock.NewController(t)
-		fakeImageDeleter := cacheMock.NewMockImageDeleter(mockController)
-		fakeImageComparer := cacheMock.NewMockImageComparer(mockController)
+		fakeImageDeleter := testmockcache.NewMockImageDeleter(mockController)
+		fakeImageComparer := testmockcache.NewMockImageComparer(mockController)
 		fakeImageComparer.EXPECT().ImagesEq(gomock.Any(), gomock.Any()).AnyTimes().Return(false, nil)
 		fakeImageDeleter.EXPECT().DeleteOrigImageIfDifferentFromNewImage(gomock.Any(), gomock.Any()).AnyTimes()
 		testLogger = cmd.DefaultLogger

cache/image_comparer.go

@@ -5,7 +5,7 @@ import (
 	"github.com/pkg/errors"
 )
 
-//go:generate mockgen -package testmockcache -destination ../testmock/cache/image_comparer.go github.com/buildpacks/lifecycle/cache ImageComparer
+//go:generate mockgen -package testmockcache -destination ../lifecycle/testmock/cache/image_comparer.go github.com/buildpacks/lifecycle/cache ImageComparer
 
 // ImageComparer provides a way to compare images
 type ImageComparer interface {

cache/image_deleter.go

@@ -7,7 +7,7 @@ import (
 	"github.com/buildpacks/lifecycle/log"
 )
 
-//go:generate mockgen -package testmockcache -destination ../testmock/cache/image_deleter.go github.com/buildpacks/lifecycle/cache ImageDeleter
+//go:generate mockgen -package testmockcache -destination ../phase/testmock/cache/image_deleter.go github.com/buildpacks/lifecycle/cache ImageDeleter
 
 // ImageDeleter defines the methods available to delete and compare cached images
 type ImageDeleter interface {

cache/image_deleter_test.go

@@ -13,8 +13,8 @@ import (
 
 	"github.com/buildpacks/lifecycle/cmd"
 	"github.com/buildpacks/lifecycle/log"
+	cacheMock "github.com/buildpacks/lifecycle/phase/testmock/cache"
 	h "github.com/buildpacks/lifecycle/testhelpers"
-	cacheMock "github.com/buildpacks/lifecycle/testmock/cache"
 )
 
 func TestImageDeleter(t *testing.T) {

cmd/apis.go

@@ -24,37 +24,45 @@ var DeprecationMode = EnvOrDefault(EnvDeprecationMode, DefaultDeprecationMode)
 
 type BuildpackAPIVerifier struct{}
 
-func (v *BuildpackAPIVerifier) VerifyBuildpackAPI(kind, name, requested string, logger log.Logger) error {
-	return VerifyBuildpackAPI(kind, name, requested, logger)
+// VerifyBuildpackAPI given a Buildpack API version and relevant information for logging
+// will error if the requested version is unsupported,
+// and will log a warning, error, or do nothing if the requested version is deprecated,
+// depending on if the configured deprecation mode is "warn", "error", or "silent", respectively.
+func (v *BuildpackAPIVerifier) VerifyBuildpackAPI(kind, name, requestedVersion string, logger log.Logger) error {
+	return VerifyBuildpackAPI(kind, name, requestedVersion, logger)
 }
 
-func VerifyBuildpackAPI(kind, name, requested string, logger log.Logger) error {
-	requestedAPI, err := api.NewVersion(requested)
+// VerifyBuildpackAPI given a Buildpack API version and relevant information for logging
+// will error if the requested version is unsupported,
+// and will log a warning, error, or do nothing if the requested version is deprecated,
+// depending on if the configured deprecation mode is "warn", "error", or "silent", respectively.
+func VerifyBuildpackAPI(kind, name, requestedVersion string, logger log.Logger) error {
+	requested, err := api.NewVersion(requestedVersion)
 	if err != nil {
 		return FailErrCode(
 			nil,
 			CodeForIncompatibleBuildpackAPI,
-			fmt.Sprintf("parse buildpack API '%s' for %s '%s'", requestedAPI, strings.ToLower(kind), name),
+			fmt.Sprintf("parse buildpack API '%s' for %s '%s'", requested, strings.ToLower(kind), name),
 		)
 	}
-	if api.Buildpack.IsSupported(requestedAPI) {
-		if api.Buildpack.IsDeprecated(requestedAPI) {
+	if api.Buildpack.IsSupported(requested) {
+		if api.Buildpack.IsDeprecated(requested) {
 			switch DeprecationMode {
 			case ModeQuiet:
 				break
 			case ModeError:
-				logger.Errorf("%s '%s' requests deprecated API '%s'", kind, name, requested)
+				logger.Errorf("%s '%s' requests deprecated API '%s'", kind, name, requestedVersion)
 				logger.Errorf("Deprecated APIs are disabled by %s=%s", EnvDeprecationMode, ModeError)
-				return buildpackAPIError(kind, name, requested)
+				return buildpackAPIError(kind, name, requestedVersion)
 			case ModeWarn:
-				logger.Warnf("%s '%s' requests deprecated API '%s'", kind, name, requested)
+				logger.Warnf("%s '%s' requests deprecated API '%s'", kind, name, requestedVersion)
 			default:
-				logger.Warnf("%s '%s' requests deprecated API '%s'", kind, name, requested)
+				logger.Warnf("%s '%s' requests deprecated API '%s'", kind, name, requestedVersion)
 			}
 		}
 		return nil
 	}
-	return buildpackAPIError(kind, name, requested)
+	return buildpackAPIError(kind, name, requestedVersion)
 }
 
 func buildpackAPIError(moduleKind string, name string, requested string) error {
@@ -65,40 +73,44 @@ func buildpackAPIError(moduleKind string, name string, requested string) error {
 	)
 }
 
-func VerifyPlatformAPI(requested string, logger log.Logger) error {
-	if strings.TrimSpace(requested) == "" {
+// VerifyPlatformAPI given a Platform API version and relevant information for logging
+// will error if the requested version is unsupported,
+// and will log a warning, error, or do nothing if the requested version is deprecated,
+// depending on if the configured deprecation mode is "warn", "error", or "silent", respectively.
+func VerifyPlatformAPI(requestedVersion string, logger log.Logger) error {
+	if strings.TrimSpace(requestedVersion) == "" {
 		return FailErrCode(
 			nil,
 			CodeForIncompatiblePlatformAPI,
 			fmt.Sprintf("get platform API version; please set '%s' to specify the desired platform API version", EnvPlatformAPI),
 		)
 	}
-	requestedAPI, err := api.NewVersion(requested)
+	requested, err := api.NewVersion(requestedVersion)
 	if err != nil {
 		return FailErrCode(
 			nil,
 			CodeForIncompatiblePlatformAPI,
-			fmt.Sprintf("parse platform API '%s'", requested),
+			fmt.Sprintf("parse platform API '%s'", requestedVersion),
 		)
 	}
-	if api.Platform.IsSupported(requestedAPI) {
-		if api.Platform.IsDeprecated(requestedAPI) {
+	if api.Platform.IsSupported(requested) {
+		if api.Platform.IsDeprecated(requested) {
 			switch DeprecationMode {
 			case ModeQuiet:
 				break
 			case ModeError:
-				logger.Errorf("Platform requested deprecated API '%s'", requested)
+				logger.Errorf("Platform requested deprecated API '%s'", requestedVersion)
 				logger.Errorf("Deprecated APIs are disabled by %s=%s", EnvDeprecationMode, ModeError)
-				return platformAPIError(requested)
+				return platformAPIError(requestedVersion)
 			case ModeWarn:
-				logger.Warnf("Platform requested deprecated API '%s'", requested)
+				logger.Warnf("Platform requested deprecated API '%s'", requestedVersion)
 			default:
-				logger.Warnf("Platform requested deprecated API '%s'", requested)
+				logger.Warnf("Platform requested deprecated API '%s'", requestedVersion)
 			}
 		}
 		return nil
 	}
-	return platformAPIError(requested)
+	return platformAPIError(requestedVersion)
 }
 
 func platformAPIError(requested string) error {

cmd/lifecycle/analyzer.go

@@ -3,16 +3,15 @@ package main
 import (
 	"fmt"
 
-	"github.com/buildpacks/lifecycle/image"
-	"github.com/buildpacks/lifecycle/internal/encoding"
-
 	"github.com/docker/docker/client"
 	"github.com/google/go-containerregistry/pkg/authn"
 
-	"github.com/buildpacks/lifecycle"
 	"github.com/buildpacks/lifecycle/auth"
 	"github.com/buildpacks/lifecycle/cmd"
 	"github.com/buildpacks/lifecycle/cmd/lifecycle/cli"
+	"github.com/buildpacks/lifecycle/image"
+	"github.com/buildpacks/lifecycle/internal/encoding"
+	"github.com/buildpacks/lifecycle/phase"
 	"github.com/buildpacks/lifecycle/platform"
 	"github.com/buildpacks/lifecycle/priv"
 )
@@ -97,11 +96,11 @@ func (a *analyzeCmd) Privileges() error {
 
 // Exec executes the command.
 func (a *analyzeCmd) Exec() error {
-	factory := lifecycle.NewAnalyzerFactory(
+	factory := phase.NewAnalyzerFactory(
 		a.PlatformAPI,
 		&cmd.BuildpackAPIVerifier{},
 		NewCacheHandler(a.keychain),
-		lifecycle.NewConfigHandler(),
+		phase.NewConfigHandler(),
 		image.NewHandler(a.docker, a.keychain, a.LayoutDir, a.UseLayout, a.InsecureRegistries),
 		image.NewRegistryHandler(a.keychain, a.InsecureRegistries),
 	)

cmd/lifecycle/builder.go

@@ -5,12 +5,12 @@ import (
 
 	"github.com/BurntSushi/toml"
 
-	"github.com/buildpacks/lifecycle"
 	"github.com/buildpacks/lifecycle/buildpack"
 	"github.com/buildpacks/lifecycle/cmd"
 	"github.com/buildpacks/lifecycle/cmd/lifecycle/cli"
 	"github.com/buildpacks/lifecycle/internal/encoding"
 	"github.com/buildpacks/lifecycle/launch"
+	"github.com/buildpacks/lifecycle/phase"
 	"github.com/buildpacks/lifecycle/platform"
 	"github.com/buildpacks/lifecycle/platform/files"
 	"github.com/buildpacks/lifecycle/priv"
@@ -74,7 +74,7 @@ func (b *buildCmd) Exec() error {
 }
 
 func (b *buildCmd) build(group buildpack.Group, plan files.Plan, analyzedMD files.Analyzed) error {
-	builder := &lifecycle.Builder{
+	builder := &phase.Builder{
 		AppDir:         b.AppDir,
 		BuildConfigDir: b.BuildConfigDir,
 		LayersDir:      b.LayersDir,
@@ -109,7 +109,7 @@ func (b *buildCmd) unwrapBuildFail(err error) error {
 }
 
 func (b *buildCmd) readData() (buildpack.Group, files.Plan, error) {
-	group, err := lifecycle.ReadGroup(b.GroupPath)
+	group, err := phase.ReadGroup(b.GroupPath)
 	if err != nil {
 		return buildpack.Group{}, files.Plan{}, cmd.FailErr(err, "read buildpack group")
 	}