fix: Get version from the BuildInfo.Main.Version if not found in deps and build flag

api/provenance/provenance.go

@@ -19,12 +19,21 @@ var (
 	// During a release, this will be set to the release tag, e.g. "kustomize/v4.5.7"
 	version = developmentVersion
 	// build date in ISO8601 format, output of $(date -u +'%Y-%m-%dT%H:%M:%SZ')
-	buildDate = "unknown"
+	buildDate = unknown
 )
 
-// This default value, (devel), matches
-// the value debug.BuildInfo uses for an unset main module version.
-const developmentVersion = "(devel)"
+const (
+	// This default value, (devel), matches
+	// the value debug.BuildInfo uses for an unset main module version.
+	developmentVersion = "(devel)"
+
+	// ModulePath is kustomize module path, defined in kustomize/go.mod
+	ModulePath = "sigs.k8s.io/kustomize/kustomize/v5"
+
+	// This is default value, unknown, substituted when
+	// the value can't be determined from debug.BuildInfo.
+	unknown = "unknown"
+)
 
 // Provenance holds information about the build of an executable.
 type Provenance struct {
@@ -47,7 +56,7 @@ func GetProvenance() Provenance {
 	p := Provenance{
 		BuildDate: buildDate,
 		Version:   version,
-		GitCommit: "unknown",
+		GitCommit: unknown,
 		GoOs:      runtime.GOOS,
 		GoArch:    runtime.GOARCH,
 		GoVersion: runtime.Version(),
@@ -62,12 +71,20 @@ func GetProvenance() Provenance {
 		// We could consider adding other info such as the commit date in the future.
 		if setting.Key == "vcs.revision" {
 			p.GitCommit = setting.Value
+			break
 		}
 	}
+	p.Version = FindVersion(info, p.Version)
 
+	return p
+}
+
+// FindVersion searches for a version in the depth of dependencies including replacements,
+// otherwise, it tries to get version from debug.BuildInfo Main.
+func FindVersion(info *debug.BuildInfo, version string) string {
 	for _, dep := range info.Deps {
-		if dep != nil && dep.Path == "sigs.k8s.io/kustomize/kustomize/v5" {
-			if dep.Version != "devel" {
+		if dep != nil && dep.Path == ModulePath {
+			if dep.Version == developmentVersion {
 				continue
 			}
 			v, err := GetMostRecentTag(*dep)
@@ -75,11 +92,16 @@ func GetProvenance() Provenance {
 				fmt.Printf("failed to get most recent tag for %s: %v\n", dep.Path, err)
 				continue
 			}
-			p.Version = v
+
+			return v
 		}
 	}
 
-	return p
+	if version == developmentVersion && info.Main.Version != "" {
+		return info.Main.Version
+	}
+
+	return version
 }
 
 func GetMostRecentTag(m debug.Module) (string, error) {

api/provenance/provenance_test.go

@@ -49,12 +49,60 @@ func TestProvenance_Semver(t *testing.T) {
 
 func mockModule(version string) debug.Module {
 	return debug.Module{
-		Path:    "sigs.k8s.io/kustomize/kustomize/v5",
+		Path:    provenance.ModulePath,
 		Version: version,
 		Replace: nil,
 	}
 }
 
+func mockBuildInfo(mainVersion, depsVersion string) *debug.BuildInfo {
+	module := mockModule(depsVersion)
+
+	return &debug.BuildInfo{
+		Main: debug.Module{
+			Version: mainVersion,
+		},
+		Deps: []*debug.Module{
+			&module,
+		},
+	}
+}
+
+func TestFindVersion(t *testing.T) {
+	tests := []struct {
+		name            string
+		version         string
+		buildInfo       *debug.BuildInfo
+		expectedVersion string
+	}{
+		{
+			name:            "The version from LD_FLAGS is not overridden by main and dependencies versions",
+			version:         "v2.3.4",
+			buildInfo:       mockBuildInfo("v1.2.3", "(devel)"),
+			expectedVersion: "v2.3.4",
+		},
+		{
+			name:            "The version from LD_FLAGS is overridden by the main version",
+			version:         "(devel)",
+			buildInfo:       mockBuildInfo("v1.2.3", "(devel)"),
+			expectedVersion: "v1.2.3",
+		},
+		{
+			name:            "The version from LD_FLAGS is overridden by the version from dependencies",
+			version:         "(devel)",
+			buildInfo:       mockBuildInfo("v1.2.3", "v1.2.3-0.20210101010101-abcdefabcdef"),
+			expectedVersion: "v1.2.2",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			version := provenance.FindVersion(tt.buildInfo, tt.version)
+			assert.Equal(t, tt.expectedVersion, version)
+		})
+	}
+}
+
 func TestGetMostRecentTag(t *testing.T) {
 	tests := []struct {
 		name        string