moved git hash and dirty variables into install target

Makefile

@@ -4,8 +4,6 @@ MKFILE_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
 PROJECT_PATH := $(patsubst %/,%,$(dir $(MKFILE_PATH)))
 GO ?= go
 KUADRANT_NAMESPACE=kuadrant-system
-GIT_HASH := $(shell git rev-parse --short=7 HEAD)
-GIT_DIRTY := $(shell git diff --stat)
 
 all: help
 
@@ -57,6 +55,8 @@ test: clean-cov fmt vet $(GINKGO)
 ## install: Build and install kuadrantctl binary ($GOBIN or GOPATH/bin)
 .PHONY : install
 install: fmt vet
+$(eval GIT_HASH  := $(shell git rev-parse --short=7 HEAD))
+$(eval GIT_DIRTY := $(shell git diff --stat))
 ifneq ($(GIT_HASH),$(GIT_DIRTY))
 	GOBIN=$(PROJECT_PATH)/bin $(GO) install -ldflags "-X 'github.com/kuadrant/kuadrantctl/version.GitDirty=$(GIT_DIRTY)' -X 'github.com/kuadrant/kuadrantctl/version.GitHash=$(GIT_HASH)'" 
 else