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builder_test.go
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package lifecycle_test
import (
"bytes"
"encoding/json"
"fmt"
"os"
"path/filepath"
"strings"
"testing"
"github.com/apex/log"
"github.com/apex/log/handlers/memory"
"github.com/golang/mock/gomock"
"github.com/google/go-cmp/cmp"
"github.com/pkg/errors"
"github.com/sclevine/spec"
"github.com/sclevine/spec/report"
"github.com/buildpacks/lifecycle"
"github.com/buildpacks/lifecycle/api"
"github.com/buildpacks/lifecycle/buildpack"
"github.com/buildpacks/lifecycle/env"
"github.com/buildpacks/lifecycle/launch"
"github.com/buildpacks/lifecycle/layers"
llog "github.com/buildpacks/lifecycle/log"
"github.com/buildpacks/lifecycle/platform/files"
h "github.com/buildpacks/lifecycle/testhelpers"
"github.com/buildpacks/lifecycle/testmock"
)
func TestBuilder(t *testing.T) {
spec.Run(t, "Builder", testBuilder, spec.Report(report.Terminal{}))
}
func testBuilder(t *testing.T, when spec.G, it spec.S) {
var (
mockCtrl *gomock.Controller
builder *lifecycle.Builder
tmpDir string
appDir string
layersDir string
platformDir string
dirStore *testmock.MockDirStore
executor *testmock.MockBuildExecutor
logHandler = memory.New()
stdout, stderr *bytes.Buffer
)
it.Before(func() {
mockCtrl = gomock.NewController(t)
dirStore = testmock.NewMockDirStore(mockCtrl)
executor = testmock.NewMockBuildExecutor(mockCtrl)
var err error
tmpDir, err = os.MkdirTemp("", "lifecycle")
h.AssertNil(t, err)
layersDir = filepath.Join(tmpDir, "launch")
appDir = filepath.Join(layersDir, "app")
platformDir = filepath.Join(tmpDir, "platform")
h.Mkdir(t, layersDir, appDir, filepath.Join(platformDir, "env"))
stdout, stderr = &bytes.Buffer{}, &bytes.Buffer{}
builder = &lifecycle.Builder{
AppDir: appDir,
LayersDir: layersDir,
PlatformDir: platformDir,
BuildExecutor: executor,
DirStore: dirStore,
Group: buildpack.Group{
Group: []buildpack.GroupElement{
{ID: "A", Version: "v1", API: api.Buildpack.Latest().String(), Homepage: "Buildpack A Homepage"},
{ID: "B", Version: "v2", API: api.Buildpack.Latest().String()},
},
},
Logger: &log.Logger{Handler: logHandler},
Out: stdout,
Err: stderr,
PlatformAPI: api.Platform.Latest(),
}
})
it.After(func() {
os.RemoveAll(tmpDir)
mockCtrl.Finish()
})
when("#Build", func() {
it("cleans the /layers/sbom directory before building", func() {
oldDir := filepath.Join(layersDir, "sbom", "launch", "undetected-buildpack")
h.Mkdir(t, oldDir)
oldFile := filepath.Join(oldDir, "launch.sbom.cdx.json")
h.Mkfile(t, `{"key": "some-bom-content"}`, oldFile)
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
bpB := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "B", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
dirStore.EXPECT().LookupBp("B", "v2").Return(bpB, nil)
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{}, nil)
executor.EXPECT().Build(*bpB, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{}, nil)
_, err := builder.Build()
h.AssertNil(t, err)
h.AssertPathDoesNotExist(t, oldFile)
})
it("provides a subset of the build plan to each buildpack", func() {
builder.Plan = files.Plan{
Entries: []files.BuildPlanEntry{
{
Providers: []buildpack.GroupElement{
{ID: "A", Version: "v1", Extension: true}, // not provided to any buildpack
},
Requires: []buildpack.Require{
{Name: "extension-dep", Version: "v1"},
},
},
{
Providers: []buildpack.GroupElement{
{ID: "A", Version: "v1"},
{ID: "B", Version: "v2"},
},
Requires: []buildpack.Require{
{Name: "some-dep", Version: "v1"}, // not provided to buildpack B because it is met
},
},
{
Providers: []buildpack.GroupElement{
{ID: "A", Version: "v1"},
{ID: "B", Version: "v2"},
},
Requires: []buildpack.Require{
{Name: "some-unmet-dep", Version: "v2"}, // provided to buildpack B because it is unmet
},
},
{
Providers: []buildpack.GroupElement{
{ID: "B", Version: "v2"},
},
Requires: []buildpack.Require{
{Name: "other-dep", Version: "v4"}, // only provided to buildpack B
},
},
},
}
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
bpB := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "B", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
expectedPlanA := buildpack.Plan{Entries: []buildpack.Require{
{Name: "some-dep", Version: "v1"},
{Name: "some-unmet-dep", Version: "v2"},
}}
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any()).DoAndReturn(
func(_ buildpack.BpDescriptor, inputs buildpack.BuildInputs, _ llog.Logger) (buildpack.BuildOutputs, error) {
h.AssertEq(t, inputs.AppDir, builder.AppDir)
h.AssertEq(t, inputs.BuildConfigDir, builder.BuildConfigDir)
h.AssertEq(t, inputs.PlatformDir, builder.PlatformDir)
h.AssertEq(t, inputs.Plan, expectedPlanA)
return buildpack.BuildOutputs{
MetRequires: []string{"some-dep"},
}, nil
})
dirStore.EXPECT().LookupBp("B", "v2").Return(bpB, nil)
expectedPlanB := buildpack.Plan{Entries: []buildpack.Require{
{Name: "some-unmet-dep", Version: "v2"},
{Name: "other-dep", Version: "v4"},
}}
executor.EXPECT().Build(*bpB, gomock.Any(), gomock.Any()).Do(
func(_ buildpack.BpDescriptor, inputs buildpack.BuildInputs, _ llog.Logger) (buildpack.BuildOutputs, error) {
h.AssertEq(t, inputs.AppDir, builder.AppDir)
h.AssertEq(t, inputs.BuildConfigDir, builder.BuildConfigDir)
h.AssertEq(t, inputs.PlatformDir, builder.PlatformDir)
h.AssertEq(t, inputs.Plan, expectedPlanB)
return buildpack.BuildOutputs{}, nil
})
_, err := builder.Build()
h.AssertNil(t, err)
})
it("gets the correct env vars", func() {
builder.AnalyzeMD.RunImage = &files.RunImage{Reference: "foo", TargetMetadata: &files.TargetMetadata{
OS: "linux",
Arch: "amd64",
}}
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any()).DoAndReturn(
func(_ buildpack.BpDescriptor, inputs buildpack.BuildInputs, logger llog.Logger) (buildpack.BuildOutputs, error) {
h.AssertContains(t, inputs.Env.List(), "CNB_TARGET_ARCH=amd64")
h.AssertContains(t, inputs.Env.List(), "CNB_TARGET_ARCH_VARIANT=")
h.AssertContains(t, inputs.Env.List(), "CNB_TARGET_OS=linux")
h.AssertContains(t, inputs.Env.List(), "CNB_TARGET_DISTRO_NAME=")
h.AssertContains(t, inputs.Env.List(), "CNB_TARGET_DISTRO_VERSION=")
return buildpack.BuildOutputs{}, nil
},
)
bpB := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "B", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
dirStore.EXPECT().LookupBp("B", "v2").Return(bpB, nil)
executor.EXPECT().Build(*bpB, gomock.Any(), gomock.Any()).Do(
func(_ buildpack.BpDescriptor, inputs buildpack.BuildInputs, _ llog.Logger) (buildpack.BuildOutputs, error) {
h.AssertContains(t, inputs.Env.List(), "CNB_TARGET_ARCH=amd64")
h.AssertContains(t, inputs.Env.List(), "CNB_TARGET_ARCH_VARIANT=")
h.AssertContains(t, inputs.Env.List(), "CNB_TARGET_OS=linux")
h.AssertContains(t, inputs.Env.List(), "CNB_TARGET_DISTRO_NAME=")
h.AssertContains(t, inputs.Env.List(), "CNB_TARGET_DISTRO_VERSION=")
return buildpack.BuildOutputs{}, nil
})
_, err := builder.Build()
h.AssertNil(t, err)
})
it("doesnt gets the new env vars if its old", func() {
builder.PlatformAPI = api.MustParse("0.8")
builder.AnalyzeMD.RunImage = &files.RunImage{Reference: "foo", TargetMetadata: &files.TargetMetadata{
OS: "linux",
Arch: "amd64",
}}
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any()).DoAndReturn(
func(_ buildpack.BpDescriptor, inputs buildpack.BuildInputs, logger llog.Logger) (buildpack.BuildOutputs, error) {
h.AssertDoesNotContain(t, inputs.Env.List(), "CNB_TARGET_ARCH=amd64")
h.AssertDoesNotContain(t, inputs.Env.List(), "CNB_TARGET_OS=linux")
h.AssertDoesNotContain(t, inputs.Env.List(), "CNB_TARGET_VARIANT=")
h.AssertDoesNotContain(t, inputs.Env.List(), "CNB_TARGET_DISTRO_NAME=")
h.AssertDoesNotContain(t, inputs.Env.List(), "CNB_TARGET_DISTRO_VERSION=")
return buildpack.BuildOutputs{}, nil
},
)
bpB := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "B", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
dirStore.EXPECT().LookupBp("B", "v2").Return(bpB, nil)
executor.EXPECT().Build(*bpB, gomock.Any(), gomock.Any()).Do(
func(_ buildpack.BpDescriptor, inputs buildpack.BuildInputs, _ llog.Logger) (buildpack.BuildOutputs, error) {
h.AssertDoesNotContain(t, inputs.Env.List(), "CNB_TARGET_ARCH=amd64")
h.AssertDoesNotContain(t, inputs.Env.List(), "CNB_TARGET_OS=linux")
h.AssertDoesNotContain(t, inputs.Env.List(), "CNB_TARGET_VARIANT=")
h.AssertDoesNotContain(t, inputs.Env.List(), "CNB_TARGET_DISTRO_NAME=")
h.AssertDoesNotContain(t, inputs.Env.List(), "CNB_TARGET_DISTRO_VERSION=")
return buildpack.BuildOutputs{}, nil
})
_, err := builder.Build()
h.AssertNil(t, err)
})
it("provides the updated environment to the next buildpack", func() {
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any()).DoAndReturn(
func(_ buildpack.BpDescriptor, inputs buildpack.BuildInputs, logger llog.Logger) (buildpack.BuildOutputs, error) {
envPtr := inputs.Env.(*env.Env)
newEnv := env.NewBuildEnv(append(os.Environ(), "HOME=some-val-from-bpA"))
*(envPtr) = *newEnv // modify the provided env
return buildpack.BuildOutputs{}, nil
},
)
bpB := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "B", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
dirStore.EXPECT().LookupBp("B", "v2").Return(bpB, nil)
executor.EXPECT().Build(*bpB, gomock.Any(), gomock.Any()).Do(
func(_ buildpack.BpDescriptor, inputs buildpack.BuildInputs, _ llog.Logger) (buildpack.BuildOutputs, error) {
h.AssertContains(t, inputs.Env.List(), "HOME=some-val-from-bpA")
return buildpack.BuildOutputs{}, nil
})
_, err := builder.Build()
h.AssertNil(t, err)
})
it("copies SBOM files to the correct locations", func() {
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
bpB := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "B", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
dirStore.EXPECT().LookupBp("B", "v2").Return(bpB, nil)
bomFilePath1 := filepath.Join(layersDir, "launch.sbom.cdx.json")
bomFilePath2 := filepath.Join(layersDir, "build.sbom.cdx.json")
bomFilePath3 := filepath.Join(layersDir, "layer-b1.sbom.cdx.json")
bomFilePath4 := filepath.Join(layersDir, "layer-b2.sbom.cdx.json")
h.Mkfile(t, `{"key": "some-bom-content-1"}`, bomFilePath1)
h.Mkfile(t, `{"key": "some-bom-content-2"}`, bomFilePath2)
h.Mkfile(t, `{"key": "some-bom-content-3"}`, bomFilePath3)
h.Mkfile(t, `{"key": "some-bom-content-4"}`, bomFilePath4)
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
BOMFiles: []buildpack.BOMFile{
{
BuildpackID: "A",
LayerName: "",
LayerType: buildpack.LayerTypeLaunch,
Path: bomFilePath1,
},
{
BuildpackID: "A",
LayerName: "",
LayerType: buildpack.LayerTypeBuild,
Path: bomFilePath2,
},
},
}, nil)
executor.EXPECT().Build(*bpB, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
BOMFiles: []buildpack.BOMFile{
{
BuildpackID: "B",
LayerName: "layer-b1",
LayerType: buildpack.LayerTypeBuild,
Path: bomFilePath3,
},
{
BuildpackID: "B",
LayerName: "layer-b1",
LayerType: buildpack.LayerTypeCache,
Path: bomFilePath3,
},
{
BuildpackID: "B",
LayerName: "layer-b2",
LayerType: buildpack.LayerTypeLaunch,
Path: bomFilePath4,
},
},
}, nil)
_, err := builder.Build()
h.AssertNil(t, err)
result := h.MustReadFile(t, filepath.Join(layersDir, "sbom", "launch", "A", "sbom.cdx.json"))
h.AssertEq(t, string(result), `{"key": "some-bom-content-1"}`)
result = h.MustReadFile(t, filepath.Join(layersDir, "sbom", "build", "A", "sbom.cdx.json"))
h.AssertEq(t, string(result), `{"key": "some-bom-content-2"}`)
result = h.MustReadFile(t, filepath.Join(layersDir, "sbom", "build", "B", "layer-b1", "sbom.cdx.json"))
h.AssertEq(t, string(result), `{"key": "some-bom-content-3"}`)
result = h.MustReadFile(t, filepath.Join(layersDir, "sbom", "cache", "B", "layer-b1", "sbom.cdx.json"))
h.AssertEq(t, string(result), `{"key": "some-bom-content-3"}`)
result = h.MustReadFile(t, filepath.Join(layersDir, "sbom", "launch", "B", "layer-b2", "sbom.cdx.json"))
h.AssertEq(t, string(result), `{"key": "some-bom-content-4"}`)
})
it("errors if there are any unsupported SBOM formats", func() {
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
bpB := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "B", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
dirStore.EXPECT().LookupBp("B", "v2").Return(bpB, nil)
bomFilePath1 := filepath.Join(layersDir, "launch.sbom.cdx.json")
bomFilePath2 := filepath.Join(layersDir, "layer-b.sbom.some-unknown-format.json")
h.Mkfile(t, `{"key": "some-bom-content-a"}`, bomFilePath1)
h.Mkfile(t, `{"key": "some-bom-content-b"}`, bomFilePath2)
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
BOMFiles: []buildpack.BOMFile{
{
BuildpackID: "A",
LayerName: "",
LayerType: buildpack.LayerTypeLaunch,
Path: bomFilePath1,
},
},
}, nil)
executor.EXPECT().Build(*bpB, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
BOMFiles: []buildpack.BOMFile{
{
BuildpackID: "B",
LayerName: "layer-b",
LayerType: buildpack.LayerTypeBuild,
Path: bomFilePath2,
},
},
}, nil)
_, err := builder.Build()
h.AssertError(t, err, fmt.Sprintf("unsupported SBOM format: '%s'", bomFilePath2))
})
when("build metadata", func() {
when("bom", func() {
it("omits bom and saves the aggregated legacy boms to <layers>/sbom/", func() {
builder.Group.Group = []buildpack.GroupElement{
{ID: "A", Version: "v1", API: "0.5", Homepage: "Buildpack A Homepage"},
{ID: "B", Version: "v2", API: "0.2"},
}
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
BuildBOM: []buildpack.BOMEntry{
{
Require: buildpack.Require{
Name: "build-dep1",
Metadata: map[string]interface{}{"version": "v1"},
},
Buildpack: buildpack.GroupElement{ID: "A", Version: "v1"},
},
},
LaunchBOM: []buildpack.BOMEntry{
{
Require: buildpack.Require{
Name: "launch-dep1",
Metadata: map[string]interface{}{"version": "v1"},
},
Buildpack: buildpack.GroupElement{ID: "A", Version: "v1"},
},
},
}, nil)
bpB := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "B", Version: "v1"}}}
dirStore.EXPECT().LookupBp("B", "v2").Return(bpB, nil)
executor.EXPECT().Build(*bpB, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
BuildBOM: []buildpack.BOMEntry{
{
Require: buildpack.Require{
Name: "build-dep2",
Metadata: map[string]interface{}{"version": "v1"},
},
Buildpack: buildpack.GroupElement{ID: "B", Version: "v2"},
},
},
LaunchBOM: []buildpack.BOMEntry{
{
Require: buildpack.Require{
Name: "launch-dep2",
Metadata: map[string]interface{}{"version": "v1"},
},
Buildpack: buildpack.GroupElement{ID: "B", Version: "v2"},
},
},
}, nil)
metadata, err := builder.Build()
h.AssertNil(t, err)
if s := cmp.Diff(metadata.BOM, []buildpack.BOMEntry{}); s != "" {
t.Fatalf("Unexpected:\n%s\n", s)
}
t.Log("saves the aggregated legacy launch bom to <layers>/sbom/launch/sbom.legacy.json")
var foundLaunch []buildpack.BOMEntry
launchContents, err := os.ReadFile(filepath.Join(builder.LayersDir, "sbom", "launch", "sbom.legacy.json"))
h.AssertNil(t, err)
h.AssertNil(t, json.Unmarshal(launchContents, &foundLaunch))
expectedLaunch := []buildpack.BOMEntry{
{
Require: buildpack.Require{
Name: "launch-dep1",
Version: "",
Metadata: map[string]interface{}{"version": string("v1")},
},
Buildpack: buildpack.GroupElement{ID: "A", Version: "v1"},
},
{
Require: buildpack.Require{
Name: "launch-dep2",
Version: "",
Metadata: map[string]interface{}{"version": string("v1")},
},
Buildpack: buildpack.GroupElement{ID: "B", Version: "v2"},
},
}
h.AssertEq(t, foundLaunch, expectedLaunch)
t.Log("saves the aggregated legacy build bom to <layers>/sbom/build/sbom.legacy.json")
var foundBuild []buildpack.BOMEntry
buildContents, err := os.ReadFile(filepath.Join(builder.LayersDir, "sbom", "build", "sbom.legacy.json"))
h.AssertNil(t, err)
h.AssertNil(t, json.Unmarshal(buildContents, &foundBuild))
expectedBuild := []buildpack.BOMEntry{
{
Require: buildpack.Require{
Name: "build-dep1",
Version: "",
Metadata: map[string]interface{}{"version": string("v1")},
},
Buildpack: buildpack.GroupElement{ID: "A", Version: "v1"},
},
{
Require: buildpack.Require{
Name: "build-dep2",
Version: "",
Metadata: map[string]interface{}{"version": string("v1")},
},
Buildpack: buildpack.GroupElement{ID: "B", Version: "v2"},
},
}
h.AssertEq(t, foundBuild, expectedBuild)
})
})
when("buildpacks", func() {
it.Before(func() {
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any())
bpB := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "B", Version: "v1"}}}
dirStore.EXPECT().LookupBp("B", "v2").Return(bpB, nil)
executor.EXPECT().Build(*bpB, gomock.Any(), gomock.Any())
})
it("includes the provided buildpacks with homepage information", func() {
metadata, err := builder.Build()
h.AssertNil(t, err)
h.AssertEq(t, metadata.Buildpacks, []buildpack.GroupElement{
{ID: "A", Version: "v1", API: api.Buildpack.Latest().String(), Homepage: "Buildpack A Homepage"},
{ID: "B", Version: "v2", API: api.Buildpack.Latest().String()},
})
})
})
when("extensions", func() {
it.Before(func() {
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any())
bpB := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "B", Version: "v1"}}}
dirStore.EXPECT().LookupBp("B", "v2").Return(bpB, nil)
executor.EXPECT().Build(*bpB, gomock.Any(), gomock.Any())
})
it("includes the provided extensions with homepage information", func() {
builder.Group.GroupExtensions = []buildpack.GroupElement{
{ID: "A", Version: "v1", API: "0.9", Homepage: "some-homepage", Extension: true, Optional: true},
}
metadata, err := builder.Build()
h.AssertNil(t, err)
h.AssertEq(t, metadata.Extensions, []buildpack.GroupElement{
{ID: "A", Version: "v1", API: "0.9", Homepage: "some-homepage"}, // this shows that `extension = true` and `optional = true` are not redundantly printed in metadata.toml
})
})
})
when("labels", func() {
it("aggregates labels from each buildpack", func() {
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
Labels: []buildpack.Label{
{Key: "some-bpA-key", Value: "some-bpA-value"},
{Key: "some-other-bpA-key", Value: "some-other-bpA-value"},
},
}, nil)
bpB := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "B", Version: "v1"}}}
dirStore.EXPECT().LookupBp("B", "v2").Return(bpB, nil)
executor.EXPECT().Build(*bpB, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
Labels: []buildpack.Label{
{Key: "some-bpB-key", Value: "some-bpB-value"},
{Key: "some-other-bpB-key", Value: "some-other-bpB-value"},
},
}, nil)
metadata, err := builder.Build()
h.AssertNil(t, err)
if s := cmp.Diff(metadata.Labels, []buildpack.Label{
{Key: "some-bpA-key", Value: "some-bpA-value"},
{Key: "some-other-bpA-key", Value: "some-other-bpA-value"},
{Key: "some-bpB-key", Value: "some-bpB-value"},
{Key: "some-other-bpB-key", Value: "some-other-bpB-value"},
}); s != "" {
t.Fatalf("Unexpected:\n%s\n", s)
}
})
})
when("processes", func() {
it("overrides identical processes from earlier buildpacks", func() {
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
Processes: []launch.Process{
{
Type: "some-type",
Command: launch.NewRawCommand([]string{"some-command"}),
Args: []string{"some-arg"},
Direct: true,
BuildpackID: "A",
},
{
Type: "override-type",
Command: launch.NewRawCommand([]string{"bpA-command"}),
Args: []string{"bpA-arg"},
Direct: true,
BuildpackID: "A",
},
},
}, nil)
bpB := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "B", Version: "v1"}}}
dirStore.EXPECT().LookupBp("B", "v2").Return(bpB, nil)
executor.EXPECT().Build(*bpB, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
Processes: []launch.Process{
{
Type: "some-other-type",
Command: launch.NewRawCommand([]string{"some-other-command"}),
Args: []string{"some-other-arg"},
Direct: true,
BuildpackID: "B",
},
{
Type: "override-type",
Command: launch.NewRawCommand([]string{"bpB-command"}),
Args: []string{"bpB-arg"},
Direct: false,
BuildpackID: "B",
},
},
}, nil)
metadata, err := builder.Build()
h.AssertNil(t, err)
if s := cmp.Diff(metadata.Processes, []launch.Process{
{
Type: "override-type",
Command: launch.NewRawCommand([]string{"bpB-command"}).
WithPlatformAPI(builder.PlatformAPI),
Args: []string{"bpB-arg"},
Direct: false,
BuildpackID: "B",
PlatformAPI: builder.PlatformAPI,
},
{
Type: "some-other-type",
Command: launch.NewRawCommand([]string{"some-other-command"}).
WithPlatformAPI(builder.PlatformAPI),
Args: []string{"some-other-arg"},
Direct: true,
BuildpackID: "B",
PlatformAPI: builder.PlatformAPI,
},
{
Type: "some-type",
Command: launch.NewRawCommand([]string{"some-command"}).
WithPlatformAPI(builder.PlatformAPI),
Args: []string{"some-arg"},
Direct: true,
BuildpackID: "A",
PlatformAPI: builder.PlatformAPI,
},
}); s != "" {
t.Fatalf("Unexpected:\n%s\n", s)
}
h.AssertEq(t, metadata.BuildpackDefaultProcessType, "")
})
when("multiple default process types", func() {
it.Before(func() {
builder.Group.Group = []buildpack.GroupElement{
{ID: "A", Version: "v1", API: api.Buildpack.Latest().String()},
{ID: "B", Version: "v2", API: api.Buildpack.Latest().String()},
{ID: "C", Version: "v3", API: api.Buildpack.Latest().String()},
}
})
it("picks the last default process type", func() {
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
Processes: []launch.Process{
{
Type: "override-type",
Command: launch.NewRawCommand([]string{"bpA-command"}),
Args: []string{"bpA-arg"},
Direct: true,
BuildpackID: "A",
Default: true,
},
},
}, nil)
bpB := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "B", Version: "v1"}}}
dirStore.EXPECT().LookupBp("B", "v2").Return(bpB, nil)
executor.EXPECT().Build(*bpB, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
Processes: []launch.Process{
{
Type: "some-type",
Command: launch.NewRawCommand([]string{"bpB-command"}),
Args: []string{"bpB-arg"},
Direct: false,
BuildpackID: "B",
Default: true,
},
},
}, nil)
bpC := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "C", Version: "v3"}}}
dirStore.EXPECT().LookupBp("C", "v3").Return(bpC, nil)
executor.EXPECT().Build(*bpC, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
Processes: []launch.Process{
{
Type: "override-type",
Command: launch.NewRawCommand([]string{"bpC-command"}),
Args: []string{"bpC-arg"},
Direct: false,
BuildpackID: "C",
},
},
}, nil)
metadata, err := builder.Build()
h.AssertNil(t, err)
if s := cmp.Diff(metadata.Processes, []launch.Process{
{
Type: "override-type",
Command: launch.NewRawCommand([]string{"bpC-command"}).
WithPlatformAPI(builder.PlatformAPI),
Args: []string{"bpC-arg"},
Direct: false,
BuildpackID: "C",
PlatformAPI: builder.PlatformAPI,
},
{
Type: "some-type",
Command: launch.NewRawCommand([]string{"bpB-command"}).
WithPlatformAPI(builder.PlatformAPI),
Args: []string{"bpB-arg"},
Direct: false,
BuildpackID: "B",
PlatformAPI: builder.PlatformAPI,
},
}); s != "" {
t.Fatalf("Unexpected:\n%s\n", s)
}
h.AssertEq(t, metadata.BuildpackDefaultProcessType, "some-type")
})
})
when("overriding default process type, with a non-default process type", func() {
it.Before(func() {
builder.Group.Group = []buildpack.GroupElement{
{ID: "A", Version: "v1", API: api.Buildpack.Latest().String()},
{ID: "B", Version: "v2", API: api.Buildpack.Latest().String()},
{ID: "C", Version: "v3", API: api.Buildpack.Latest().String()},
}
})
it("warns and does not set any default process", func() {
bpB := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "B", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpB, nil)
executor.EXPECT().Build(*bpB, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
Processes: []launch.Process{
{
Type: "some-type",
Command: launch.NewRawCommand([]string{"bpA-command"}),
Args: []string{"bpA-arg"},
Direct: false,
BuildpackID: "A",
Default: true,
},
},
}, nil)
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
dirStore.EXPECT().LookupBp("B", "v2").Return(bpA, nil)
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
Processes: []launch.Process{
{
Type: "override-type",
Command: launch.NewRawCommand([]string{"bpB-command"}),
Args: []string{"bpB-arg"},
Direct: true,
BuildpackID: "B",
Default: true,
},
},
}, nil)
bpC := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "C", Version: "v3"}}}
dirStore.EXPECT().LookupBp("C", "v3").Return(bpC, nil)
executor.EXPECT().Build(*bpC, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
Processes: []launch.Process{
{
Type: "override-type",
Command: launch.NewRawCommand([]string{"bpC-command"}),
Args: []string{"bpC-arg"},
Direct: false,
BuildpackID: "C",
},
},
}, nil)
metadata, err := builder.Build()
h.AssertNil(t, err)
if s := cmp.Diff(metadata.Processes, []launch.Process{
{
Type: "override-type",
Command: launch.NewRawCommand([]string{"bpC-command"}).
WithPlatformAPI(builder.PlatformAPI),
Args: []string{"bpC-arg"},
Direct: false,
BuildpackID: "C",
PlatformAPI: builder.PlatformAPI,
},
{
Type: "some-type",
Command: launch.NewRawCommand([]string{"bpA-command"}).
WithPlatformAPI(builder.PlatformAPI),
Args: []string{"bpA-arg"},
Direct: false,
BuildpackID: "A",
PlatformAPI: builder.PlatformAPI,
},
}); s != "" {
t.Fatalf("Unexpected:\n%s\n", s)
}
expected := "Warning: redefining the following default process type with a process not marked as default: override-type"
assertLogEntry(t, logHandler, expected)
h.AssertEq(t, metadata.BuildpackDefaultProcessType, "")
})
})
when("there is a web process", func() {
when("buildpack API >= 0.6", func() {
it.Before(func() {
builder.Group.Group = []buildpack.GroupElement{
{ID: "A", Version: "v1", API: api.Buildpack.Latest().String()},
}
})
it("does not set it as a default process", func() {
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
Processes: []launch.Process{
{
Type: "web",
Command: launch.NewRawCommand([]string{"web-cmd"}),
Args: []string{"web-arg"},
Direct: false,
BuildpackID: "A",
Default: false,
},
},
}, nil)
metadata, err := builder.Build()
h.AssertNil(t, err)
if s := cmp.Diff(metadata.Processes, []launch.Process{
{
Type: "web",
Command: launch.NewRawCommand([]string{"web-cmd"}).
WithPlatformAPI(builder.PlatformAPI),
Args: []string{"web-arg"},
Direct: false,
BuildpackID: "A",
Default: false,
PlatformAPI: builder.PlatformAPI,
},
}); s != "" {
t.Fatalf("Unexpected:\n%s\n", s)
}
h.AssertEq(t, metadata.BuildpackDefaultProcessType, "")
})
})
when("buildpack api < 0.6", func() {
it.Before(func() {
builder.Group.Group = []buildpack.GroupElement{
{ID: "A", Version: "v1", API: "0.5"},
}
})
it("sets it as a default process", func() {
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
Processes: []launch.Process{
{
Type: "web",
Command: launch.NewRawCommand([]string{"web-cmd"}),
Args: []string{"web-arg"},
Direct: false,
BuildpackID: "A",
Default: false,
},
{
Type: "not-web",
Command: launch.NewRawCommand([]string{"not-web-cmd"}),
Args: []string{"not-web-arg"},
Direct: true,
BuildpackID: "A",
Default: false,
},
},
}, nil)
metadata, err := builder.Build()
h.AssertNil(t, err)
if s := cmp.Diff(metadata.Processes, []launch.Process{
{
Type: "not-web",
Command: launch.NewRawCommand([]string{"not-web-cmd"}).
WithPlatformAPI(builder.PlatformAPI),
Args: []string{"not-web-arg"},
Direct: true,
BuildpackID: "A",
PlatformAPI: builder.PlatformAPI,
},
{
Type: "web",
Command: launch.NewRawCommand([]string{"web-cmd"}).
WithPlatformAPI(builder.PlatformAPI),
Args: []string{"web-arg"},
Direct: false,
BuildpackID: "A",
PlatformAPI: builder.PlatformAPI,
},
}); s != "" {
t.Fatalf("Unexpected:\n%s\n", s)
}
h.AssertEq(t, metadata.BuildpackDefaultProcessType, "web")
})
})
})
it("includes the platform API version", func() {
builder.Group.Group = []buildpack.GroupElement{
{ID: "A", Version: "v1", API: api.Buildpack.Latest().String()},
}
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
Processes: []launch.Process{
{
Type: "some-type",
Command: launch.NewRawCommand([]string{"some-cmd"}),
BuildpackID: "A",
},
},
}, nil)
metadata, err := builder.Build()
h.AssertNil(t, err)
h.AssertEq(t, metadata.Processes[0].PlatformAPI, builder.PlatformAPI)
})
})
when("slices", func() {
it("aggregates slices from each buildpack", func() {
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
Slices: []layers.Slice{
{Paths: []string{"some-bpA-path", "some-other-bpA-path"}},
{Paths: []string{"duplicate-path"}},
{Paths: []string{"extra-path"}},
},
}, nil)
bpB := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "B", Version: "v1"}}}
dirStore.EXPECT().LookupBp("B", "v2").Return(bpB, nil)
executor.EXPECT().Build(*bpB, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{
Slices: []layers.Slice{
{Paths: []string{"some-bpB-path", "some-other-bpB-path"}},
{Paths: []string{"duplicate-path"}},
},
}, nil)
metadata, err := builder.Build()
h.AssertNil(t, err)
if s := cmp.Diff(metadata.Slices, []layers.Slice{
{Paths: []string{"some-bpA-path", "some-other-bpA-path"}},
{Paths: []string{"duplicate-path"}},
{Paths: []string{"extra-path"}},
{Paths: []string{"some-bpB-path", "some-other-bpB-path"}},
{Paths: []string{"duplicate-path"}},
}); s != "" {
t.Fatalf("Unexpected:\n%s\n", s)
}
})
})
})
when("buildpack build fails", func() {
when("first buildpack build fails", func() {
it("errors", func() {
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)
executor.EXPECT().Build(*bpA, gomock.Any(), gomock.Any()).Return(buildpack.BuildOutputs{}, errors.New("some error"))
if _, err := builder.Build(); err == nil {
t.Fatal("Expected error.\n")
} else if !strings.Contains(err.Error(), "some error") {
t.Fatalf("Incorrect error: %s\n", err)
}
})
})
when("later buildpack build fails", func() {
it("errors", func() {
bpA := &buildpack.BpDescriptor{Buildpack: buildpack.BpInfo{BaseInfo: buildpack.BaseInfo{ID: "A", Version: "v1"}}}
dirStore.EXPECT().LookupBp("A", "v1").Return(bpA, nil)