Add scripts for updating autogenerated files.

Author: wojtek-t

Makefile

@@ -43,6 +43,7 @@ all:
 verify:
 	hack/verify-gofmt.sh
 	hack/verify-boilerplate.sh
+	hack/verify-codecgen.sh
 	hack/verify-description.sh
 	hack/verify-generated-conversions.sh
 	hack/verify-generated-deep-copies.sh

hack/update-all.sh

@@ -40,7 +40,8 @@ if $SILENT ; then
 	echo "Running in the silent mode, run with -v if you want to see script logs."
 fi
 
-BASH_TARGETS="generated-conversions
+BASH_TARGETS="codecgen
+	generated-conversions
 	generated-deep-copies 
 	generated-docs 
 	generated-swagger-docs 

hack/update-codecgen.sh

@@ -0,0 +1,52 @@
+#!/bin/bash
+
+# Copyright 2015 The Kubernetes Authors All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+cd "${KUBE_ROOT}"
+
+generated_files=$(
+  find . -not \( \
+      \( \
+        -wholename './output' \
+        -o -wholename './_output' \
+        -o -wholename './release' \
+        -o -wholename './target' \
+        -o -wholename '*/third_party/*' \
+        -o -wholename '*/Godeps/*' \
+      \) -prune \
+    \) -name '*.generated.go')
+
+for generated_file in ${generated_files}; do
+  initial_dir=${PWD}
+  file=${generated_file//\.generated\.go/.go}
+  # codecgen work only if invoked from directory where the file
+  # is located.
+  pushd "$(dirname ${file})" > /dev/null
+  base_file=$(basename "${file}")
+  base_generated_file=$(basename "${generated_file}")
+  # We use '-d 1234' flag to have a deterministic output everytime.
+  # The constant was just randomly chosen.
+  codecgen -d 1234 -o "${base_generated_file}" "${base_file}"
+  # Add boilerplate at the begining of the generated file.
+  sed 's/YEAR/2015/' "${initial_dir}/hack/boilerplate/boilerplate.go.txt" > "${base_generated_file}.tmp"
+  cat "${base_generated_file}" >> "${base_generated_file}.tmp"
+  mv "${base_generated_file}.tmp" "${base_generated_file}"
+  popd > /dev/null
+done

hack/verify-codecgen.sh

@@ -0,0 +1,82 @@
+#!/bin/bash
+
+# Copyright 2015 The Kubernetes Authors All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+source "${KUBE_ROOT}/hack/lib/init.sh"
+
+kube::golang::setup_env
+
+cd "${KUBE_ROOT}"
+
+generated_files=$(
+  find . -not \( \
+      \( \
+        -wholename './output' \
+        -o -wholename './_output' \
+        -o -wholename './release' \
+        -o -wholename './target' \
+        -o -wholename '*/third_party/*' \
+        -o -wholename '*/Godeps/*' \
+      \) -prune \
+    \) -name '*.generated.go')
+
+# create a nice clean place to put codecgen there
+_tmpdir="$(mktemp -d -t codecgen.XXXXXX)"
+function cleanup {
+  echo "Removing ${_tmpdir}"
+  rm -rf "${_tmpdir}"
+}
+trap cleanup EXIT
+
+# build codecgen tool
+# We make some tricks with GOPATH variable to make it work with Travis.
+_gopath=${GOPATH}
+export GOPATH="${_tmpdir}"
+go get -u github.com/ugorji/go/codec/codecgen 2>/dev/null
+go install github.com/ugorji/go/codec/codecgen 2>/dev/null
+CODECGEN="${_tmpdir}/bin/codecgen"
+export GOPATH=${_gopath}
+
+for generated_file in ${generated_files}; do
+  initial_dir=${PWD}
+  file=${generated_file//\.generated\.go/.go}
+  # codecgen work only if invoked from directory where the file
+  # is located.
+  pushd "$(dirname ${file})" > /dev/null
+  base_file=$(basename "${file}")
+  base_generated_file=$(basename "${generated_file}")
+  # We use '-d 1234' flag to have a deterministic output everytime.
+  # The constant was just randomly chosen.
+  ${CODECGEN} -d 1234 -o "${base_generated_file}.1tmp" "${base_file}"
+  # Add boilerplate at the begining of the generated file.
+  sed 's/YEAR/2015/' "${initial_dir}/hack/boilerplate/boilerplate.go.txt" > "${base_generated_file}.tmp"
+  cat "${base_generated_file}.1tmp" >> "${base_generated_file}.tmp"
+  rm "${base_generated_file}.1tmp"
+  ret=0
+  diff -Naupr -I 'Auto generated by' "${base_generated_file}" "${base_generated_file}.tmp" || ret=$?
+  if [[ $ret -eq 0 ]]; then
+    echo "${generated_file} up to date."
+  else
+    echo "${generated_file} is out of date. Please run hack/update-codecgen.sh"
+    exit 1
+  fi
+  rm "${base_generated_file}.tmp"
+  popd > /dev/null
+done