Replace bash release helper scripts with Go progam

cmd/gorepomod/internal/mod/module.go

@@ -0,0 +1,79 @@
+package mod
+
+import (
+	"fmt"
+	"path/filepath"
+
+	"golang.org/x/mod/modfile"
+	"sigs.k8s.io/kustomize/cmd/gorepomod/internal/misc"
+	"sigs.k8s.io/kustomize/cmd/gorepomod/internal/semver"
+)
+
+// Module is an immutable representation of a Go module.
+type Module struct {
+	repo      misc.LaRepository
+	shortName misc.ModuleShortName
+	mf        *modfile.File
+	vLocal    semver.SemVer
+	vRemote   semver.SemVer
+}
+
+func New(
+	repo misc.LaRepository,
+	shortName misc.ModuleShortName,
+	mf *modfile.File,
+	vl semver.SemVer,
+	vr semver.SemVer) *Module {
+	return &Module{
+		repo:      repo,
+		shortName: shortName,
+		mf:        mf,
+		vLocal:    vl,
+		vRemote:   vr,
+	}
+}
+
+func (m *Module) GitRepo() misc.LaRepository {
+	return m.repo
+}
+
+func (m *Module) VersionLocal() semver.SemVer {
+	return m.vLocal
+}
+
+func (m *Module) VersionRemote() semver.SemVer {
+	return m.vRemote
+}
+
+func (m *Module) ShortName() misc.ModuleShortName {
+	return m.shortName
+}
+
+func (m *Module) ImportPath() string {
+	return filepath.Join(m.repo.RepoPath(), string(m.ShortName()))
+}
+
+func (m *Module) AbsPath() string {
+	return filepath.Join(m.repo.AbsPath(), string(m.ShortName()))
+}
+
+func (m *Module) DependsOn(target misc.LaModule) (bool, semver.SemVer) {
+	for _, r := range m.mf.Require {
+		if r.Mod.Path == target.ImportPath() {
+			v, err := semver.Parse(r.Mod.Version)
+			if err != nil {
+				panic(err)
+			}
+			return true, v
+		}
+	}
+	return false, semver.Zero()
+}
+
+func (m *Module) GetReplacements() (result []string) {
+	for _, r := range m.mf.Replace {
+		result = append(
+			result, fmt.Sprintf("%s => %s", r.Old.String(), r.New.String()))
+	}
+	return
+}

cmd/gorepomod/internal/mod/module_test.go

@@ -0,0 +1 @@
+package mod_test