Adds Procfile in its own order grouping

README.md

@@ -2,15 +2,18 @@
 
 ## `paketobuildpacks/builder:tiny`
 
-This builder uses the [Paketo Tiny Stack](https://github.com/paketo-buildpacks/tiny-stack-release)
-(bionic build image, distroless-like run image) with buildpacks for Java Native Image and Go.
+This builder uses the [Paketo Tiny
+Stack](https://github.com/paketo-buildpacks/tiny-stack-release) (bionic build
+image, distroless-like run image) with buildpacks for Java Native Image, Go,
+and Procfile.
 
 To see which versions of build and run images, buildpacks, and the lifecycle
 that are contained within a given builder version, see the
-[Releases](https://github.com/paketo-buildpacks/tiny-builder/releases)
-on this repo. This information is also available in the `builder.toml`.
+[Releases](https://github.com/paketo-buildpacks/tiny-builder/releases) on this
+repository. This information is also available in the `builder.toml`.
 
 For more information about this builder and how to use it, visit the [Paketo
 builder documentation](https://paketo.io/docs/builders/).  To learn about the
 stack included in this builder, visit the [Paketo stack
-documentation](https://paketo.io/docs/stacks/) and the [Paketo Tiny Stack repo](https://github.com/paketo-buildpacks/tiny-stack-release).
+documentation](https://paketo.io/docs/stacks/) and the [Paketo Tiny Stack
+repo](https://github.com/paketo-buildpacks/tiny-stack-release).

builder.toml

@@ -8,6 +8,10 @@ description = "Tiny base image (bionic build image, distroless-like run image) w
   uri = "docker://gcr.io/paketo-buildpacks/java-native-image:5.3.0"
   version = "5.3.0"
 
+[[buildpacks]]
+  uri = "docker://gcr.io/paketo-buildpacks/procfile:4.1.0"
+  version = "4.1.0"
+
 [lifecycle]
   version = "0.11.1"
 
@@ -23,6 +27,12 @@ description = "Tiny base image (bionic build image, distroless-like run image) w
     id = "paketo-buildpacks/go"
     version = "0.5.0"
 
+[[order]]
+
+  [[order.group]]
+    id = "paketo-buildpacks/procfile"
+    version = "4.1.0"
+
 [stack]
   build-image = "docker.io/paketobuildpacks/build:1.2.3-tiny-cnb"
   id = "io.paketo.stacks.tiny"

smoke/init_test.go

@@ -29,5 +29,6 @@ func TestSmoke(t *testing.T) {
 	suite := spec.New("Smoke", spec.Parallel(), spec.Report(report.Terminal{}))
 	suite("Go", testGo)
 	suite("Java Native Image", testJavaNativeImage)
+	suite("Procfile", testProcfile)
 	suite.Run(t)
 }

smoke/procfile_test.go

@@ -0,0 +1,75 @@
+package smoke_test
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/paketo-buildpacks/occam"
+	"github.com/sclevine/spec"
+
+	. "github.com/onsi/gomega"
+	. "github.com/paketo-buildpacks/occam/matchers"
+)
+
+func testProcfile(t *testing.T, context spec.G, it spec.S) {
+	var (
+		Expect     = NewWithT(t).Expect
+		Eventually = NewWithT(t).Eventually
+
+		pack   occam.Pack
+		docker occam.Docker
+	)
+
+	it.Before(func() {
+		pack = occam.NewPack().WithVerbose().WithNoColor()
+		docker = occam.NewDocker()
+	})
+
+	context("detects a Procfile app", func() {
+		var (
+			image     occam.Image
+			container occam.Container
+
+			name   string
+			source string
+		)
+
+		it.Before(func() {
+			var err error
+			name, err = occam.RandomName()
+			Expect(err).NotTo(HaveOccurred())
+		})
+
+		it.After(func() {
+			Expect(docker.Container.Remove.Execute(container.ID)).To(Succeed())
+			Expect(docker.Volume.Remove.Execute(occam.CacheVolumeNames(name))).To(Succeed())
+			Expect(docker.Image.Remove.Execute(image.ID)).To(Succeed())
+			Expect(os.RemoveAll(source)).To(Succeed())
+		})
+
+		it("builds successfully", func() {
+			var err error
+			source, err = occam.Source(filepath.Join("testdata", "procfile"))
+			Expect(err).NotTo(HaveOccurred())
+
+			var logs fmt.Stringer
+			image, logs, err = pack.Build.
+				WithPullPolicy("never").
+				WithBuilder(Builder).
+				Execute(name, source)
+			Expect(err).ToNot(HaveOccurred(), logs.String)
+
+			Expect(logs).To(ContainLines(ContainSubstring("Paketo Procfile Buildpack")))
+
+			container, err = docker.Container.Run.
+				WithEnv(map[string]string{"PORT": "8080"}).
+				WithPublish("8080").
+				Execute(image.ID)
+			Expect(err).NotTo(HaveOccurred())
+
+			Eventually(container).Should(Serve(ContainSubstring("Hello World!")).OnPort(8080).WithEndpoint("/hello-world.txt"))
+		})
+	})
+}

smoke/testdata/procfile/Procfile

@@ -0,0 +1 @@
+web: ./static-file-server-1.8.0-linux-amd64 --config config.yml

smoke/testdata/procfile/config.yml

@@ -0,0 +1 @@
+folder: web

smoke/testdata/procfile/web/hello-world.txt

@@ -0,0 +1 @@
+Hello World!