1#!/bin/bash
2
3# Copyright 2014 The Kubernetes Authors.
4#
5# Licensed under the Apache License, Version 2.0 (the "License");
6# you may not use this file except in compliance with the License.
7# You may obtain a copy of the License at
8#
9# http://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing, software
12# distributed under the License is distributed on an "AS IS" BASIS,
13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14# See the License for the specific language governing permissions and
15# limitations under the License.
16
17# Some useful colors.
18if [[ -z "${color_start-}" ]]; then
19 declare -r color_start="\033["
20 declare -r color_red="${color_start}0;31m"
21 declare -r color_yellow="${color_start}0;33m"
22 declare -r color_green="${color_start}0;32m"
23 declare -r color_norm="${color_start}0m"
24fi
25
26# Returns the server version as MMmmpp, with MM as the major
27# component, mm the minor component, and pp as the patch
28# revision. e.g. 0.7.1 is echoed as 701, and 1.0.11 would be
29# 10011. (This makes for easy integer comparison in bash.)
30function kube_server_version() {
31 local server_version
32 local major
33 local minor
34 local patch
35
36 # This sed expression is the POSIX BRE to match strings like:
37 # Server Version: &version.Info{Major:"0", Minor:"7+", GitVersion:"v0.7.0-dirty", GitCommit:"ad44234f7152e9c66bc2853575445c7071335e57", GitTreeState:"dirty"}
38 # and capture the GitVersion portion (which has the patch level)
39 server_version=$(${KUBECTL} --match-server-version=false version | grep "Server Version:")
40 read major minor patch < <(
41 echo ${server_version} | \
42 sed "s/.*GitVersion:\"v\([0-9]\{1,\}\)\.\([0-9]\{1,\}\)\.\([0-9]\{1,\}\).*/\1 \2 \3/")
43 printf "%02d%02d%02d" ${major} ${minor} ${patch} | sed 's/^0*//'
44}
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