Replace bash release helper scripts with Go progam

cmd/gorepomod/internal/repo/manager.go

@@ -0,0 +1,194 @@
+package repo
+
+import (
+	"fmt"
+	"strconv"
+
+	"sigs.k8s.io/kustomize/cmd/gorepomod/internal/edit"
+	"sigs.k8s.io/kustomize/cmd/gorepomod/internal/git"
+	"sigs.k8s.io/kustomize/cmd/gorepomod/internal/misc"
+	"sigs.k8s.io/kustomize/cmd/gorepomod/internal/semver"
+)
+
+// Manager manages a git repo.
+// All data already loaded and validated, it's ready to go.
+type Manager struct {
+	// Underlying file system facts.
+	dg *DotGitData
+
+	// The remote used for fetching tags, pushing tags,
+	// and pushing release branches.
+	remoteName misc.TrackedRepo
+
+	// The list of known Go modules in the repo.
+	modules misc.LesModules
+}
+
+func (mgr *Manager) AbsPath() string {
+	return mgr.dg.AbsPath()
+}
+
+func (mgr *Manager) RepoPath() string {
+	return mgr.dg.RepoPath()
+}
+
+func (mgr *Manager) FindModule(
+	target misc.ModuleShortName) misc.LaModule {
+	return mgr.modules.Find(target)
+}
+
+func (mgr *Manager) Tidy(doIt bool) error {
+	return mgr.modules.Apply(func(m misc.LaModule) error {
+		return edit.New(m, doIt).Tidy()
+	})
+}
+
+func (mgr *Manager) Pin(
+	doIt bool, target misc.LaModule, newV semver.SemVer) error {
+	return mgr.modules.Apply(func(m misc.LaModule) error {
+		if yes, oldVersion := m.DependsOn(target); yes {
+			return edit.New(m, doIt).Pin(target, oldVersion, newV)
+		}
+		return nil
+	})
+}
+
+func (mgr *Manager) UnPin(doIt bool, target misc.LaModule) error {
+	return mgr.modules.Apply(func(m misc.LaModule) error {
+		if yes, oldVersion := m.DependsOn(target); yes {
+			return edit.New(m, doIt).UnPin(target, oldVersion)
+		}
+		return nil
+	})
+}
+
+func hasUnPinnedDeps(m misc.LaModule) string {
+	if len(m.GetReplacements()) > 0 {
+		return "yes"
+	}
+	return ""
+}
+
+func (mgr *Manager) List() error {
+	fmt.Printf("   src path: %s\n", mgr.dg.SrcPath())
+	fmt.Printf("  repo path: %s\n", mgr.RepoPath())
+	fmt.Printf("     remote: %s\n", mgr.remoteName)
+	format := "%-" +
+		strconv.Itoa(mgr.modules.LenLongestName()+2) +
+		"s%-11s%-11s%17s  %s\n"
+	fmt.Printf(
+		format, "NAME", "LOCAL", "REMOTE",
+		"HAS-UNPINNED-DEPS", "INTRA-REPO-DEPENDENCIES")
+	return mgr.modules.Apply(func(m misc.LaModule) error {
+		fmt.Printf(
+			format, m.ShortName(),
+			m.VersionLocal().Pretty(),
+			m.VersionRemote().Pretty(),
+			hasUnPinnedDeps(m),
+			mgr.modules.InternalDeps(m))
+		return nil
+	})
+}
+
+func determineBranchAndTag(
+	m misc.LaModule, v semver.SemVer) (string, string) {
+	if m.ShortName() == misc.ModuleAtTop {
+		return fmt.Sprintf("release-%s", v.BranchLabel()), v.String()
+	}
+	return fmt.Sprintf(
+			"release-%s-%s", m.ShortName(), v.BranchLabel()),
+		string(m.ShortName()) + "/" + v.String()
+}
+
+func (mgr *Manager) Debug(_ misc.LaModule, doIt bool) error {
+	gr := git.NewLoud(mgr.AbsPath(), doIt)
+	return gr.Debug(mgr.remoteName)
+}
+
+// Release supports a gitlab flow style release process.
+//
+// * All development happens in the branch named "master".
+// * Each minor release gets its own branch.
+// *
+func (mgr *Manager) Release(
+	target misc.LaModule, bump semver.SvBump, doIt bool) error {
+
+	if reps := target.GetReplacements(); len(reps) > 0 {
+		return fmt.Errorf(
+			"to release %q, first pin these replacements: %v",
+			target.ShortName(), reps)
+	}
+
+	newVersion := target.VersionLocal().Bump(bump)
+
+	if newVersion.Equals(target.VersionRemote()) {
+		return fmt.Errorf(
+			"version %s already exists on remote - delete it first", newVersion)
+	}
+	if newVersion.LessThan(target.VersionRemote()) {
+		fmt.Printf(
+			"version %s is less than the most recent remote version (%s)",
+			newVersion, target.VersionRemote())
+	}
+
+	gr := git.NewLoud(mgr.AbsPath(), doIt)
+
+	relBranch, relTag := determineBranchAndTag(target, newVersion)
+
+	fmt.Printf(
+		"Releasing %s, stepping from %s to %s\n",
+		target.ShortName(), target.VersionLocal(), newVersion)
+
+	if err := gr.AssureCleanWorkspace(); err != nil {
+		return err
+	}
+	if err := gr.FetchRemote(mgr.remoteName); err != nil {
+		return err
+	}
+	if err := gr.CheckoutMainBranch(); err != nil {
+		return err
+	}
+	if err := gr.MergeFromRemoteMain(mgr.remoteName); err != nil {
+		return err
+	}
+	if err := gr.AssureCleanWorkspace(); err != nil {
+		return err
+	}
+	if err := gr.CheckoutReleaseBranch(mgr.remoteName, relBranch); err != nil {
+		return err
+	}
+	if err := gr.MergeFromRemoteMain(mgr.remoteName); err != nil {
+		return err
+	}
+	if err := gr.PushBranchToRemote(mgr.remoteName, relBranch); err != nil {
+		return err
+	}
+	if err := gr.CreateLocalReleaseTag(relTag, relBranch); err != nil {
+		return err
+	}
+	if err := gr.PushTagToRemote(mgr.remoteName, relTag); err != nil {
+		return err
+	}
+	if err := gr.CheckoutMainBranch(); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (mgr *Manager) UnRelease(target misc.LaModule, doIt bool) error {
+	fmt.Printf(
+		"Unreleasing %s/%s\n",
+		target.ShortName(), target.VersionRemote())
+
+	_, tag := determineBranchAndTag(target, target.VersionRemote())
+
+	gr := git.NewLoud(mgr.AbsPath(), doIt)
+
+	if err := gr.DeleteTagFromRemote(mgr.remoteName, tag); err != nil {
+		return err
+	}
+	if err := gr.DeleteLocalTag(tag); err != nil {
+		return err
+	}
+	return nil
+}