Go 1.13 and removing support for --dep-manager=dep (operator-framework#1949)

* initial jump to go 1.13

* cmd/operator-sdk,internal/util/projutil: fix comment, reuse checkGoModules

* CHANGELOG.md: add lines for operator-framework#1949

* doc/*: updates from PR feedback

Author: joelanford

.travis.yml

@@ -30,17 +30,12 @@ cache:
     - $HOME/.cache/go-build
 
 go:
-- 1.12.x
+- 1.13.x
 
 # The `x_base_steps` top-level key is unknown to travis,
 # so we can use it to create a bunch of common build step
 # YAML anchors which we use in our build jobs.
 x_base_steps:
-  # before_install for jobs that require dep
-  - &dep_before_install
-    before_install:
-      - travis_retry make tidy
-
   # before_install for jobs that require go builds and do not run for doc-only changes
   - &go_before_install
     before_install:
@@ -151,7 +146,6 @@ jobs:
       name: Unit, Sanity, and Markdown Tests
       # Currently, prow/api-ci tests all PRs that target master; use travis for post merge testing and non-master PRs
       if: type != pull_request OR branch != master
-      <<: *dep_before_install
       script: make test-sanity test-unit test-markdown
       after_success: echo 'Tests Passed'
       after_failure: echo 'Failure in unit, sanity, or markdown test'

CHANGELOG.md

@@ -7,10 +7,14 @@
 
 ### Changed
 
+- **Breaking change:** Changed required Go version from `1.12` to `1.13`. This change applies to the SDK project itself and Go projects scaffolded by the SDK. Projects that import this version of the SDK require Go 1.13 to compile. ([#1949](https://github.com/operator-framework/operator-sdk/pull/1949))
+
 ### Deprecated
 
 ### Removed
 
+- Removed `--dep-manager` flag and support for `dep`-based projects. Projects will be scaffolded to use Go modules. ([#1949](https://github.com/operator-framework/operator-sdk/pull/1949))
+
 ### Bug Fixes
 
 - OLM internal manager is not returning errors in the initialization. ([#1976](https://github.com/operator-framework/operator-sdk/pull/1976))

README.md

@@ -41,13 +41,12 @@ The following workflow is for a new **Helm** operator:
 ## Prerequisites
 
 - [git][git_tool]
-- [go][go_tool] version v1.12+.
+- [go][go_tool] version v1.13+.
 - [mercurial][mercurial_tool] version 3.9+
 - [docker][docker_tool] version 17.03+.
   - Alternatively [podman][podman_tool] `v1.2.0+` or [buildah][buildah_tool] `v1.7+`
 - [kubectl][kubectl_tool] version v1.11.3+.
 - Access to a Kubernetes v1.11.3+ cluster.
-- Optional: [dep][dep_tool] version v0.5.0+.
 - Optional: [delve](https://github.com/go-delve/delve/tree/master/Documentation/installation) version 1.2.0+ (for `up local --enable-delve`).
 
 ## Quick Start
@@ -181,7 +180,6 @@ Operator SDK is under Apache 2.0 license. See the [LICENSE][license_file] file f
 [contrib]: ./CONTRIBUTING.MD
 [bug_guide]:./doc/dev/reporting_bugs.md
 [license_file]:./LICENSE
-[dep_tool]:https://golang.github.io/dep/docs/installation.html
 [git_tool]:https://git-scm.com/downloads
 [go_tool]:https://golang.org/dl/
 [mercurial_tool]:https://www.mercurial-scm.org/downloads

ci/dockerfiles/builder.Dockerfile

@@ -1,4 +1,4 @@
-FROM openshift/origin-release:golang-1.12
+FROM openshift/origin-release:golang-1.13
 
 WORKDIR /go/src/github.com/operator-framework/operator-sdk
 ENV GOPATH=/go PATH=/go/src/github.com/operator-framework/operator-sdk/build:$PATH GOPROXY=https://proxy.golang.org/ GO111MODULE=on

cmd/operator-sdk/build/cmd.go

@@ -119,7 +119,6 @@ func buildFunc(cmd *cobra.Command, args []string) error {
 			PackagePath: path.Join(projutil.GetGoPkg(), filepath.ToSlash(scaffold.ManagerDir)),
 			Args:        args,
 			Env:         goBuildEnv,
-			GoMod:       projutil.IsDepManagerGoMod(),
 		}
 		if err := projutil.GoBuild(opts); err != nil {
 			return fmt.Errorf("failed to build operator binary: (%v)", err)

cmd/operator-sdk/main.go

@@ -15,7 +15,6 @@
 package main
 
 import (
-	"fmt"
 	"os"
 
 	// Import all Kubernetes client auth plugins (e.g. Azure, GCP, OIDC, etc.)
@@ -56,7 +55,7 @@ func main() {
 				log.SetLevel(log.DebugLevel)
 				log.Debug("Debug logging is set")
 			}
-			if err := checkDepManagerForCmd(cmd); err != nil {
+			if err := checkGoModulesForCmd(cmd); err != nil {
 				log.Fatal(err)
 			}
 		},
@@ -87,29 +86,25 @@ func main() {
 	}
 }
 
-func checkDepManagerForCmd(cmd *cobra.Command) (err error) {
+func checkGoModulesForCmd(cmd *cobra.Command) (err error) {
 	// Certain commands are able to be run anywhere or handle this check
 	// differently in their CLI code.
 	if skipCheckForCmd(cmd) {
 		return nil
 	}
-	// Do not perform this check if the project is non-Go, as they will not have
-	// a (Go) dep manager.
+	// Do not perform this check if the project is non-Go, as they will not
+	// be using go modules.
 	if !projutil.IsOperatorGo() {
 		return nil
 	}
-	// Do not perform a dep manager check if the working directory is not in
+	// Do not perform a go modules check if the working directory is not in
 	// the project root, as some sub-commands might not require project root.
 	// Individual subcommands will perform this check as needed.
 	if err := projutil.CheckProjectRoot(); err != nil {
 		return nil
 	}
 
-	dm, err := projutil.GetDepManagerType()
-	if err != nil {
-		return err
-	}
-	return checkDepManager(dm)
+	return projutil.CheckGoModules()
 }
 
 var commandsToSkip = map[string]struct{}{
@@ -136,28 +131,3 @@ func skipCheckForCmd(cmd *cobra.Command) (skip bool) {
 	})
 	return skip
 }
-
-func checkDepManager(dm projutil.DepManagerType) error {
-	switch dm {
-	case projutil.DepManagerGoMod:
-		goModOn, err := projutil.GoModOn()
-		if err != nil {
-			return err
-		}
-		if !goModOn {
-			return fmt.Errorf(`dependency manager "modules" requires working directory to be in $GOPATH/src` +
-				` and GO111MODULE=on, or outside of $GOPATH/src and GO111MODULE="on", "auto", or unset. More info: https://github.com/operator-framework/operator-sdk/blob/master/doc/user-guide.md#go-modules`)
-		}
-	case projutil.DepManagerDep:
-		inGopathSrc, err := projutil.WdInGoPathSrc()
-		if err != nil {
-			return err
-		}
-		if !inGopathSrc {
-			return fmt.Errorf(`dependency manager "dep" requires working directory to be in $GOPATH/src`)
-		}
-	default:
-		return projutil.ErrInvalidDepManager(dm)
-	}
-	return nil
-}

cmd/operator-sdk/migrate/cmd.go

@@ -25,13 +25,11 @@ import (
 	"github.com/operator-framework/operator-sdk/internal/scaffold/input"
 	"github.com/operator-framework/operator-sdk/internal/util/projutil"
 
-	"github.com/pkg/errors"
 	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 )
 
 var (
-	depManager string
 	headerFile string
 	repo       string
 )
@@ -45,9 +43,8 @@ func NewCmd() *cobra.Command {
 		RunE:  migrateRun,
 	}
 
-	newCmd.Flags().StringVar(&depManager, "dep-manager", "modules", `Dependency manager the new project will use (choices: "dep", "modules")`)
 	newCmd.Flags().StringVar(&headerFile, "header-file", "", "Path to file containing headers for generated Go files. Copied to hack/boilerplate.go.txt")
-	newCmd.Flags().StringVar(&repo, "repo", "", "Project repository path. Used as the project's Go import path. This must be set if outside of $GOPATH/src with Go modules, and cannot be set if --dep-manager=dep")
+	newCmd.Flags().StringVar(&repo, "repo", "", "Project repository path. Used as the project's Go import path. This must be set if outside of $GOPATH/src (e.g. github.com/example-inc/my-operator)")
 
 	return newCmd
 }
@@ -76,7 +73,7 @@ func migrateRun(cmd *cobra.Command, args []string) error {
 }
 
 func verifyFlags() error {
-	err := projutil.CheckDepManagerWithRepo(projutil.DepManagerType(depManager), repo)
+	err := projutil.CheckRepo(repo)
 	if err != nil {
 		return err
 	}
@@ -119,11 +116,9 @@ func migrateAnsible() error {
 		s.BoilerplatePath = headerFile
 	}
 
-	if err := scaffoldAnsibleDepManager(s, cfg); err != nil {
-		return errors.Wrap(err, "migrate Ansible dependency manager file scaffold failed")
-	}
-
 	err = s.Execute(cfg,
+		&ansible.GoMod{},
+		&scaffold.Tools{},
 		&ansible.Main{},
 		&dockerfile,
 		&ansible.Entrypoint{},
@@ -160,11 +155,9 @@ func migrateHelm() error {
 		s.BoilerplatePath = headerFile
 	}
 
-	if err := scaffoldHelmDepManager(s, cfg); err != nil {
-		return errors.Wrap(err, "migrate Helm dependency manager file scaffold failed")
-	}
-
 	err := s.Execute(cfg,
+		&helm.GoMod{},
+		&scaffold.Tools{},
 		&helm.Main{},
 		&helm.DockerfileHybrid{
 			Watches:    true,
@@ -189,29 +182,3 @@ func renameDockerfile() error {
 	log.Infof("Renamed Dockerfile to %s and replaced with newer version. Compare the new Dockerfile to your old one and manually migrate any customizations", newDockerfilePath)
 	return nil
 }
-
-func scaffoldHelmDepManager(s *scaffold.Scaffold, cfg *input.Config) error {
-	var files []input.File
-	switch m := projutil.DepManagerType(depManager); m {
-	case projutil.DepManagerDep:
-		files = append(files, &helm.GopkgToml{})
-	case projutil.DepManagerGoMod:
-		files = append(files, &helm.GoMod{}, &scaffold.Tools{})
-	default:
-		return projutil.ErrInvalidDepManager(depManager)
-	}
-	return s.Execute(cfg, files...)
-}
-
-func scaffoldAnsibleDepManager(s *scaffold.Scaffold, cfg *input.Config) error {
-	var files []input.File
-	switch m := projutil.DepManagerType(depManager); m {
-	case projutil.DepManagerDep:
-		files = append(files, &ansible.GopkgToml{})
-	case projutil.DepManagerGoMod:
-		files = append(files, &ansible.GoMod{}, &scaffold.Tools{})
-	default:
-		return projutil.ErrInvalidDepManager(depManager)
-	}
-	return s.Execute(cfg, files...)
-}