drop support for legacy (v0) projects

This is a first in the series of PRs for cleaning up
the technical debt.

Author: droot

.travis.yml

@@ -22,8 +22,6 @@ install:
   -
 
 script:
-- TRACE=1 ./testv0.sh
-- ./test_existing_projects.sh
 - TRACE=1 ./testv1.sh
 
 # TBD. Suppressing for now.

cmd/kubebuilder/initproject/init.go

@@ -17,52 +17,51 @@ limitations under the License.
 package initproject
 
 import (
+	"bufio"
 	"fmt"
 	"log"
 	"os"
 	"os/exec"
 	"path/filepath"
-	"strconv"
 	"strings"
 
 	"github.com/Masterminds/semver"
 	"github.com/kubernetes-sigs/kubebuilder/cmd/kubebuilder/util"
 	"github.com/spf13/cobra"
+	flag "github.com/spf13/pflag"
+	"sigs.k8s.io/controller-tools/pkg/scaffold"
+	"sigs.k8s.io/controller-tools/pkg/scaffold/input"
 	"sigs.k8s.io/controller-tools/pkg/scaffold/manager"
 	"sigs.k8s.io/controller-tools/pkg/scaffold/project"
 )
 
-type initOptions struct {
-	domain         string
-	copyright      string
-	bazel          bool
-	controllerOnly bool
-	projectVersion string
-	projectOptions
-}
-
 func AddInit(cmd *cobra.Command) {
-	o := initOptions{}
+	o := projectOptions{}
 
 	initCmd := &cobra.Command{
 		Use:   "init",
 		Short: "Initialize a new project",
-		Long:  `Initialize a new project including vendor/ directory and Go package directories.`,
-		Example: `# Initialize project structure
-kubebuilder init --domain mydomain
+		Long: `Initialize a new project including vendor/ directory and Go package directories.
+
+Writes the following files:
+- a boilerplate license file
+- a PROJECT file with the domain and repo
+- a Makefile to build the project
+- a Gopkg.toml with project dependencies
+- a Kustomization.yaml for customizating manifests
+- a Patch file for customizing image for manager manifests
+- a cmd/manager/main.go to run
+
+project will prompt the user to run 'dep ensure' after writing the project files.
+`,
+		Example: `# Scaffold a project using the apache2 license with "The Kubernetes authors" as owners
+kubebuilder init --domain example.org --license apache2 --owner "The Kubernetes authors"
 `,
 		Run: func(cmd *cobra.Command, args []string) {
-			o.runInitRepo()
+			o.RunInit()
 		},
 	}
 
-	v0comment := "Works only with project-version v0, "
-	initCmd.Flags().StringVar(&o.domain, "domain", "", "domain for the API groups")
-	initCmd.Flags().StringVar(&o.copyright, "copyright", filepath.Join("hack", "boilerplate.go.txt"), v0comment+"Location of copyright boilerplate file.")
-	initCmd.Flags().BoolVar(&o.bazel, "bazel", false, v0comment+"if true, setup Bazel workspace artifacts")
-	initCmd.Flags().BoolVar(&o.controllerOnly, "controller-only", false, v0comment+"if true, setup controller only")
-	initCmd.Flags().StringVar(&o.projectVersion, "project-version", "v1", "if set to v0, init project with kubebuilder legacy version")
-
 	initCmd.Flags().BoolVar(
 		&o.dep, "dep", true, "if specified, determines whether dep will be used.")
 	o.depFlag = initCmd.Flag("dep")
@@ -76,56 +75,114 @@ kubebuilder init --domain mydomain
 	cmd.AddCommand(initCmd)
 }
 
-func (o *initOptions) runInitRepo() {
+type projectOptions struct {
+	prj     *project.Project
+	bp      *project.Boilerplate
+	gopkg   *project.GopkgToml
+	mgr     *manager.Cmd
+	dkr     *manager.Dockerfile
+	dep     bool
+	depFlag *flag.Flag
+}
+
+func (o *projectOptions) RunInit() {
 	checkGoVersion()
 
 	if !depExists() {
 		log.Fatalf("Dep is not installed. Follow steps at: https://golang.github.io/dep/docs/installation.html")
 	}
 
-	if o.projectVersion == "v1" {
-		if len(o.domain) != 0 {
-			o.prj.Domain = o.domain
-		}
-		o.RunInit()
+	if util.ProjectExist() {
+		fmt.Println("Failed to initialize project bacause project is already initialized")
 		return
 	}
+	// project and boilerplate must come before main so the boilerplate exists
+	s := &scaffold.Scaffold{
+		BoilerplateOptional: true,
+		ProjectOptional:     true,
+	}
 
-	if len(o.domain) == 0 {
-		log.Fatal("Must specify --domain")
+	p, err := o.prj.GetInput()
+	if err != nil {
+		log.Fatal(err)
 	}
-	cr := util.GetCopyright(o.copyright)
 
-	fmt.Printf("Initializing project structure...\n")
-	if o.bazel {
-		createBazelWorkspace()
+	b, err := o.bp.GetInput()
+	if err != nil {
+		log.Fatal(err)
 	}
-	createControllerManager(cr)
-	//createInstaller(cr)
-	createAPIs(cr, o.domain)
-	//runCreateApiserver(cr)
-
-	pkgs := []string{
-		filepath.Join("hack"),
-		filepath.Join("pkg"),
-		filepath.Join("pkg", "controller"),
-		filepath.Join("pkg", "inject"),
-		//filepath.Join("pkg", "openapi"),
+
+	err = s.Execute(input.Options{ProjectPath: p.Path, BoilerplatePath: b.Path}, o.prj, o.bp)
+	if err != nil {
+		log.Fatal(err)
 	}
 
-	fmt.Printf("\t%s/\n", filepath.Join("pkg", "controller"))
-	for _, p := range pkgs {
-		createPackage(cr, p)
+	// default controller manager image name
+	imgName := "controller:latest"
+
+	s = &scaffold.Scaffold{}
+	err = s.Execute(input.Options{ProjectPath: p.Path, BoilerplatePath: b.Path},
+		o.gopkg,
+		o.mgr,
+		&project.Makefile{Image: imgName},
+		o.dkr,
+		&manager.APIs{},
+		&manager.Controller{},
+		&manager.Config{Image: imgName},
+		&project.GitIgnore{},
+		&project.Kustomize{},
+		&project.KustomizeImagePatch{})
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	if !o.depFlag.Changed {
+		reader := bufio.NewReader(os.Stdin)
+		fmt.Println("Run `dep ensure` to fetch dependencies (Recommended) [y/n]?")
+		o.dep = util.Yesno(reader)
+	}
+	if o.dep {
+		c := exec.Command("dep", "ensure") // #nosec
+		c.Stderr = os.Stderr
+		c.Stdout = os.Stdout
+		fmt.Println(strings.Join(c.Args, " "))
+		if err := c.Run(); err != nil {
+			log.Fatal(err)
+		}
+
+		fmt.Println("Running make...")
+		c = exec.Command("make") // #nosec
+		c.Stderr = os.Stderr
+		c.Stdout = os.Stdout
+		fmt.Println(strings.Join(c.Args, " "))
+		if err := c.Run(); err != nil {
+			log.Fatal(err)
+		}
+	} else {
+		fmt.Println("Skipping `dep ensure`.  Dependencies will not be fetched.")
 	}
-	doDockerfile()
-	doInject(cr)
-	doArgs(cr, o.controllerOnly)
-	RunVendorInstall(nil, []string{o.copyright})
-	createBoilerplate()
 	fmt.Printf("Next: Define a resource with:\n" +
-		"$ kubebuilder create resource\n")
+		"$ kubebuilder create api\n")
+}
+
+// projectForFlags registers flags for Project fields and returns the Project
+func projectForFlags(f *flag.FlagSet) *project.Project {
+	p := &project.Project{}
+	f.StringVar(&p.Repo, "repo", "", "name of the github repo.  "+
+		"defaults to the go package of the current working directory.")
+	f.StringVar(&p.Domain, "domain", "k8s.io", "domain for groups")
+	f.StringVar(&p.Version, "project-version", "1", "project version")
+	return p
 }
 
+// boilerplateForFlags registers flags for Boilerplate fields and returns the Boilerplate
+func boilerplateForFlags(f *flag.FlagSet) *project.Boilerplate {
+	b := &project.Boilerplate{}
+	f.StringVar(&b.Path, "path", "", "path for boilerplate")
+	f.StringVar(&b.License, "license", "apache2", "license to use to boilerplate.  Maybe one of apache2,none")
+	f.StringVar(&b.Owner, "owner", "", "Owner to add to the copyright")
+	return b
+}
 func checkGoVersion() {
 	cmd := exec.Command("go", "version")
 	out, err := cmd.Output()
@@ -165,29 +222,3 @@ type templateArgs struct {
 	Repo           string
 	ControllerOnly bool
 }
-
-func versionCmp(v1 string, v2 string) int {
-	v1s := strings.Split(strings.Replace(v1, "go", "", 1), ".")
-	v2s := strings.Split(strings.Replace(v2, "go", "", 1), ".")
-	for i := 0; i < len(v1s) && i < len(v2s); i++ {
-		mv1, err1 := strconv.Atoi(v1s[i])
-		mv2, err2 := strconv.Atoi(v2s[i])
-		if err1 == nil && err2 == nil {
-			cmp := mv1 - mv2
-			if cmp > 0 {
-				return 1
-			} else if cmp < 0 {
-				return -1
-			}
-		} else {
-			log.Fatalf("Unexpected error comparing %v with %v", v1, v2)
-		}
-	}
-	if len(v1s) == len(v2s) {
-		return 0
-	} else if len(v1s) > len(v2s) {
-		return 1
-	} else {
-		return -1
-	}
-}