Convert go_binary linkstamp to x_defs

cmd/cloud-controller-manager/BUILD

@@ -7,6 +7,7 @@ load(
     "go_binary",
     "go_library",
 )
+load("//pkg/version:def.bzl", "version_x_defs")
 
 go_binary(
     name = "cloud-controller-manager",
@@ -17,8 +18,8 @@ go_binary(
         "-static",
     ],
     library = ":go_default_library",
-    linkstamp = "k8s.io/kubernetes/pkg/version",
     tags = ["automanaged"],
+    x_defs = version_x_defs(),
 )
 
 go_library(

cmd/hyperkube/BUILD

@@ -8,12 +8,13 @@ load(
     "go_library",
     "go_test",
 )
+load("//pkg/version:def.bzl", "version_x_defs")
 
 go_binary(
     name = "hyperkube",
     library = ":go_default_library",
-    linkstamp = "k8s.io/kubernetes/pkg/version",
     tags = ["automanaged"],
+    x_defs = version_x_defs(),
 )
 
 go_test(

cmd/kube-apiserver/BUILD

@@ -7,6 +7,7 @@ load(
     "go_binary",
     "go_library",
 )
+load("//pkg/version:def.bzl", "version_x_defs")
 
 go_binary(
     name = "kube-apiserver",
@@ -17,8 +18,8 @@ go_binary(
         "-static",
     ],
     library = ":go_default_library",
-    linkstamp = "k8s.io/kubernetes/pkg/version",
     tags = ["automanaged"],
+    x_defs = version_x_defs(),
 )
 
 go_library(

cmd/kube-controller-manager/BUILD

@@ -7,6 +7,7 @@ load(
     "go_binary",
     "go_library",
 )
+load("//pkg/version:def.bzl", "version_x_defs")
 
 go_binary(
     name = "kube-controller-manager",
@@ -17,8 +18,8 @@ go_binary(
         "-static",
     ],
     library = ":go_default_library",
-    linkstamp = "k8s.io/kubernetes/pkg/version",
     tags = ["automanaged"],
+    x_defs = version_x_defs(),
 )
 
 go_library(

cmd/kube-proxy/BUILD

@@ -7,6 +7,7 @@ load(
     "go_binary",
     "go_library",
 )
+load("//pkg/version:def.bzl", "version_x_defs")
 
 go_binary(
     name = "kube-proxy",
@@ -17,8 +18,8 @@ go_binary(
         "-static",
     ],
     library = ":go_default_library",
-    linkstamp = "k8s.io/kubernetes/pkg/version",
     tags = ["automanaged"],
+    x_defs = version_x_defs(),
 )
 
 go_library(

cmd/kubeadm/BUILD

@@ -7,6 +7,7 @@ load(
     "go_binary",
     "go_library",
 )
+load("//pkg/version:def.bzl", "version_x_defs")
 
 go_binary(
     name = "kubeadm",
@@ -17,8 +18,8 @@ go_binary(
         "-static",
     ],
     library = ":go_default_library",
-    linkstamp = "k8s.io/kubernetes/pkg/version",
     tags = ["automanaged"],
+    x_defs = version_x_defs(),
 )
 
 go_library(

cmd/kubectl/BUILD

@@ -5,6 +5,7 @@ load(
     "go_binary",
     "go_library",
 )
+load("//pkg/version:def.bzl", "version_x_defs")
 
 go_binary(
     name = "kubectl",
@@ -15,11 +16,11 @@ go_binary(
         "-static",
     ],
     library = ":go_default_library",
-    linkstamp = "k8s.io/kubernetes/pkg/version",
     tags = ["automanaged"],
     visibility = [
         "//build/visible_to:COMMON_release",
     ],
+    x_defs = version_x_defs(),
 )
 
 go_library(

cmd/kubelet/BUILD

@@ -7,12 +7,13 @@ load(
     "go_binary",
     "go_library",
 )
+load("//pkg/version:def.bzl", "version_x_defs")
 
 go_binary(
     name = "kubelet",
     library = ":go_default_library",
-    linkstamp = "k8s.io/kubernetes/pkg/version",
     tags = ["automanaged"],
+    x_defs = version_x_defs(),
 )
 
 go_library(

hack/lib/version.sh

@@ -118,12 +118,15 @@ kube::version::ldflag() {
   local key=${1}
   local val=${2}
 
+  # If you update these, also update the list pkg/version/def.bzl.
   echo "-X ${KUBE_GO_PACKAGE}/pkg/version.${key}=${val}"
   echo "-X ${KUBE_GO_PACKAGE}/vendor/k8s.io/client-go/pkg/version.${key}=${val}"
 }
 
 # Prints the value that needs to be passed to the -ldflags parameter of go build
 # in order to set the Kubernetes based on the git tree status.
+# IMPORTANT: if you update any of these, also update the lists in
+# pkg/version/def.bzl and hack/print-workspace-status.sh.
 kube::version::ldflags() {
   kube::version::get_version_vars
 

hack/print-workspace-status.sh

@@ -29,6 +29,8 @@ kube::version::get_version_vars
 # instead of volatile-status.txt.
 # Stamped rules will be retriggered by changes to stable-status.txt, but not by
 # changes to volatile-status.txt.
+# IMPORTANT: the camelCase vars should match the lists in hack/lib/version.sh
+# and pkg/version/def.bzl.
 cat <<EOF
 STABLE_BUILD_GIT_COMMIT ${KUBE_GIT_COMMIT-}
 STABLE_BUILD_SCM_STATUS ${KUBE_GIT_TREE_STATE-}

pkg/version/def.bzl

@@ -0,0 +1,24 @@
+# Implements hack/lib/version.sh's kube::version::ldflags() for Bazel.
+def version_x_defs():
+  # This should match the list of packages in kube::version::ldflag
+  stamp_pkgs = [
+      "k8s.io/kubernetes/pkg/version",
+      # In hack/lib/version.sh, this has a vendor/ prefix. That isn't needed here?
+      "k8s.io/client-go/pkg/version",
+      ]
+  # This should match the list of vars in kube::version::ldflags
+  # It should also match the list of vars set in hack/print-workspace-status.sh.
+  stamp_vars = [
+      "buildDate",
+      "gitCommit",
+      "gitMajor",
+      "gitMinor",
+      "gitTreeState",
+      "gitVersion",
+  ]
+  # Generate the cross-product.
+  x_defs = {}
+  for pkg in stamp_pkgs:
+    for var in stamp_vars:
+      x_defs["%s.%s" % (pkg, var)] = "{%s}" % var
+  return x_defs

plugin/cmd/kube-scheduler/BUILD

@@ -7,6 +7,7 @@ load(
     "go_binary",
     "go_library",
 )
+load("//pkg/version:def.bzl", "version_x_defs")
 
 go_binary(
     name = "kube-scheduler",
@@ -17,8 +18,8 @@ go_binary(
         "-static",
     ],
     library = ":go_default_library",
-    linkstamp = "k8s.io/kubernetes/pkg/version",
     tags = ["automanaged"],
+    x_defs = version_x_defs(),
 )
 
 go_library(

staging/src/k8s.io/client-go/pkg/version/def.bzl

@@ -0,0 +1,24 @@
+# Implements hack/lib/version.sh's kube::version::ldflags() for Bazel.
+def version_x_defs():
+  # This should match the list of packages in kube::version::ldflag
+  stamp_pkgs = [
+      "k8s.io/kubernetes/pkg/version",
+      # In hack/lib/version.sh, this has a vendor/ prefix. That isn't needed here?
+      "k8s.io/client-go/pkg/version",
+      ]
+  # This should match the list of vars in kube::version::ldflags
+  # It should also match the list of vars set in hack/print-workspace-status.sh.
+  stamp_vars = [
+      "buildDate",
+      "gitCommit",
+      "gitMajor",
+      "gitMinor",
+      "gitTreeState",
+      "gitVersion",
+  ]
+  # Generate the cross-product.
+  x_defs = {}
+  for pkg in stamp_pkgs:
+    for var in stamp_vars:
+      x_defs["%s.%s" % (pkg, var)] = "{%s}" % var
+  return x_defs

staging/src/k8s.io/kube-aggregator/BUILD

@@ -7,6 +7,7 @@ load(
     "go_binary",
     "go_library",
 )
+load("//vendor/k8s.io/client-go/pkg/version:def.bzl", "version_x_defs")
 
 go_binary(
     name = "kube-aggregator",
@@ -17,8 +18,8 @@ go_binary(
         "-static",
     ],
     library = ":go_default_library",
-    linkstamp = "k8s.io/kubernetes/pkg/version",
     tags = ["automanaged"],
+    x_defs = version_x_defs(),
 )
 
 go_library(