Add tag.sh script

tag.sh

+#!/bin/bash
+set -e
+
+if [ -z "$1" ]; then
+    echo usage: $0 TAG
+    exit 1
+fi
+
+if [ -n "$(git tag -l $1)" ]; then
+    echo $1 tag exists run
+    echo "    " git tag -d $1
+    exit 1
+fi
+
+rm -f ./pkg/generated/openapi/openapi.go
+rm -f ./pkg/generated/openapi/zz_generated.openapi.go
+
+# The submodule tagging screws up ./hack/update-codegen.sh so make sure the script find a valid
+# semver tag
+while true; do
+    TAG=$(git describe --tags HEAD)
+    if ! git tag -d "$TAG" 2>/dev/null; then
+        break
+    fi
+done
+git tag -d v0.0.0 2>/dev/null || true
+git tag v0.0.0
+trap "git tag -d v0.0.0 >/dev/null 2>&1" exit
+
+./hack/update-codegen.sh
+go run ./pkg/generated/openapi/gen/main.go > ./pkg/generated/openapi/gen/openapi.go
+mv ./pkg/generated/openapi/gen/openapi.go ./pkg/generated/openapi/openapi.go
+rm -f ./pkg/generated/openapi/zz_generated.openapi.go
+
+F="pkg/version/base.go staging/src/k8s.io/client-go/pkg/version/base.go"
+for i in $F; do
+cat > $i << EOF
+package version
+
+var (
+	gitMajor = "1"
+	gitMinor = "$(echo $1 | cut -f2 -d.)"
+	gitVersion   = "$1"
+	gitCommit    = "$(git rev-parse HEAD)"
+	gitTreeState = "clean"
+	buildDate = "$(date -u -Iminutes)Z"
+)
+EOF
+done
+
+git add ./pkg/generated/openapi/openapi.go 2>/dev/null || true
+git add $F
+git commit -m $1
+git tag $1
+for i in staging/src/k8s.io/*; do
+    git tag -d $i/$1 2>/dev/null || true
+    git tag $i/$1
+done
+
+for i in staging/src/k8s.io/*; do
+    echo git push '$REMOTE' $i/$1
+done
+echo git push '$REMOTE' $1