fix(cli/version): Insert build info in go tool installation

The go install and go build installation methods now set all the available fields in the version subcommand output.

The version resolution logic has been changed to extract build info from the binary itself, rather than
inject the info using ldflags at build time.

Assisted by: Google/Gemini 3 Pro

Author: vitorfloriano

.gitignore

@@ -16,6 +16,7 @@ docs/book/src/docs
 # skip bin dirs
 **/bin
 **/testbin
+**/dist
 
 # skip .out files (coverage tests)
 *.out

Makefile

@@ -50,19 +50,9 @@ help: ## Display this help
 
 ##@ Build
 
-K8S_VERSION ?= $(shell go list -m -modfile=./testdata/project-v4/go.mod -f "{{ .Version }}" k8s.io/api | awk -F'[v.]' '{printf "1.%d.%d", $$3, $$4}')
-
-LD_FLAGS=-ldflags " \
-    -X sigs.k8s.io/kubebuilder/v4/cmd.kubeBuilderVersion=$(shell git describe --tags --dirty --broken) \
-    -X sigs.k8s.io/kubebuilder/v4/cmd.kubernetesVendorVersion=$(K8S_VERSION) \
-    -X sigs.k8s.io/kubebuilder/v4/cmd.goos=$(shell go env GOOS) \
-    -X sigs.k8s.io/kubebuilder/v4/cmd.goarch=$(shell go env GOARCH) \
-    -X sigs.k8s.io/kubebuilder/v4/cmd.gitCommit=$(shell git rev-parse HEAD) \
-    -X sigs.k8s.io/kubebuilder/v4/cmd.buildDate=$(shell date -u +'%Y-%m-%dT%H:%M:%SZ') \
-    "
 .PHONY: build
 build: ## Build the project locally
-	go build $(LD_FLAGS) -o bin/kubebuilder
+	go build --trimpath -o bin/kubebuilder
 
 .PHONY: install
 install: build ## Build and install the binary with the current source code. Use it to test your changes locally.
@@ -72,7 +62,7 @@ install: build ## Build and install the binary with the current source code. Use
 ##@ Development
 
 .PHONY: generate
-generate: generate-testdata generate-docs update-k8s-version ## Update/generate all mock data. You should run this commands to update the mock data after your changes.
+generate: generate-testdata generate-docs ## Update/generate all mock data. You should run this commands to update the mock data after your changes.
 	go mod tidy
 	make remove-spaces
 
@@ -216,17 +206,6 @@ install-helm: ## Install the latest version of Helm locally
 helm-lint: install-helm ## Lint the Helm chart in testdata
 	helm lint testdata/project-v4-with-plugins/dist/chart
 
-.PHONY: update-k8s-version
-update-k8s-version: ## Update Kubernetes API version in version.go and .goreleaser.yml
-	@if [ -z "$(K8S_VERSION)" ]; then echo "Error: K8S_VERSION is empty"; exit 1; fi
-	@echo "Updating Kubernetes version to $(K8S_VERSION)"
-	@# Update version.go
-	@sed -i.bak 's/kubernetesVendorVersion = .*/kubernetesVendorVersion = "$(K8S_VERSION)"/' cmd/version.go
-	@# Update .goreleaser.yml
-	@sed -i.bak 's/KUBERNETES_VERSION=.*/KUBERNETES_VERSION=$(K8S_VERSION)/' build/.goreleaser.yml
-	@# Clean up backup files
-	@find . -name "*.bak" -type f -delete
-
 ## Tool Binaries
 GO_APIDIFF ?= $(LOCALBIN)/go-apidiff
 GOLANGCI_LINT ?= $(LOCALBIN)/golangci-lint

build/.goreleaser.yml

@@ -31,13 +31,6 @@ builds:
   - id: kubebuilder
     binary: kubebuilder
     mod_timestamp: "{{ .CommitTimestamp }}"
-    ldflags:
-      - -X sigs.k8s.io/kubebuilder/v4/cmd.kubeBuilderVersion={{ .Version }}
-      - -X sigs.k8s.io/kubebuilder/v4/cmd.goos={{ .Os }}
-      - -X sigs.k8s.io/kubebuilder/v4/cmd.goarch={{ .Arch }}
-      - -X sigs.k8s.io/kubebuilder/v4/cmd.gitCommit={{ .Commit }}
-      - -X sigs.k8s.io/kubebuilder/v4/cmd.buildDate={{ .Date }}
-      - -X sigs.k8s.io/kubebuilder/v4/cmd.kubernetesVendorVersion={{ .Env.KUBERNETES_VERSION }}
     targets:
       - linux_amd64
       - linux_arm64
@@ -46,12 +39,11 @@ builds:
       - darwin_amd64
       - darwin_arm64
     env:
-      - KUBERNETES_VERSION=1.34.1
       - CGO_ENABLED=0
 
 # Only binaries of the form "kubebuilder_${goos}_${goarch}" will be released.
 archives:
-  - formats: ['binary']
+  - formats: ["binary"]
     # Setting name_template correctly maps checksums to binary names.
     name_template: "{{ .Binary }}_{{ .Os }}_{{ .Arch }}{{ if .Arm }}v{{ .Arm }}{{ end }}{{ if .Mips }}_{{ .Mips }}{{ end }}"
 

cmd/cmd.go

@@ -22,6 +22,7 @@ import (
 
 	"github.com/spf13/afero"
 
+	"sigs.k8s.io/kubebuilder/v4/internal/version"
 	"sigs.k8s.io/kubebuilder/v4/pkg/cli"
 	cfgv3 "sigs.k8s.io/kubebuilder/v4/pkg/config/v3"
 	"sigs.k8s.io/kubebuilder/v4/pkg/logging"
@@ -62,10 +63,11 @@ func Run() {
 		slog.Error("error discovering external plugins", "error", err)
 	}
 
+	v := version.New()
 	c, err := cli.New(
 		cli.WithCommandName("kubebuilder"),
-		cli.WithVersion(versionString()),
-		cli.WithCliVersion(getKubebuilderVersion()),
+		cli.WithVersion(v.PrintVersion()),
+		cli.WithCliVersion(v.GetKubeBuilderVersion()),
 		cli.WithPlugins(
 			golangv4.Plugin{},
 			gov4Bundle,