Jenkins代码详见：
https://gitee.com/roclli/simple-maven-project-with-tests.git
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29#!/usr/bing/env groovy
node('master') {
echo "----------------------start git url----------------------"
checkout scm
// git url: 'https://gitee.com/roclli/simple-maven-project-with-tests.git'
echo "----------------------version()----------------------"
def v = version()
if (v) {
echo "---Building version ${v}---"
}
def mvnHome = tool 'M3'
echo "----------------------mvn -B -D verify----------------------"
sh "${mvnHome}/bin/mvn -B -Dmaven.test.failure.ignore verify"
}
def version() {
def matcher = readFile('pom.xml') =~ '<version>(.+)</version>'
echo "---${matcher[0][1]}---" //---1.0-SNAPSHOT---
echo "---${matcher[0][2]}---" //---null---
echo "---${matcher[0][3]}---" //---null---
echo "---${matcher[1][1]}---" //---2.18.1---
echo "---${matcher[1][2]}---" //---null---
echo "---${matcher[1][3]}---" //---null---
echo "---${matcher[2][1]}---" //---4.11---
echo "---${matcher[2][2]}---" //---null---
echo "---${matcher[2][3]}---" //---null---
matcher ? matcher[0][1] : null
}