Jenkins 管道中的多行 bash 命令
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Multiline bash command in Jenkins pipeline
提问by tig
I have the following sh command in my Jenkinsfile which does not work because it tries to execute the last "DATA" as a command. If I move last "DATA" to the beginning of the line it works but is not as beautiful as I want. Is there a way to the indention in this case?
我的 Jenkinsfile 中有以下 sh 命令，它不起作用，因为它试图将最后一个“数据”作为命令执行。如果我将最后一个“DATA”移到行首，它可以工作，但没有我想要的那么漂亮。在这种情况下有缩进的方法吗？
sh """
sshpass -p 'password' ssh -o StrictHostKeyChecking=no appsadm@$backup_registry <<DATA
sudo /etc/init.d/docker stop || true
sudo yum remove -y docker-engine.x86_64
sudo rm -fr /var/lib/docker /var/log/docker
sudo rpm -iUvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm || true
sudo yum update -y
sudo yum -y install docker-io
sudo sed -i 's#other_args=.*#other_args="--insecure-registry $official_registry:5000"#g' /etc/sysconfig/docker
sudo /etc/init.d/docker start
DATA
"""
采纳答案by Nahuel Fouilleul
because <<DATAspecifies the end of here-doc <<-DATAsuppress leading tabs but not spaces
因为<<DATA指定 here-doc 的结尾<<-DATA抑制前导制表符而不是空格
cat <<-DATA
hello
<tab>DATA
another option is to add spaces in marker
另一种选择是在标记中添加空格
cat << " DATA"
hello
DATA
回答by waaffles
I know this is an old question, but I had ran into this at some point, and eventually ended up using stripIndent()
我知道这是一个老问题，但我在某个时候遇到过这个问题，最终使用了 stripIndent()
steps {
echo 'Deploying....'
sh """
ssh somewhere <<EOF
cd somewhere
do some more stuff
EOF
""".stripIndent()
}
That way you can still keep your indentations and formatting
这样您仍然可以保留缩进和格式
回答by Jadda
Edit:We don't need to use EOF, simply put the semicolon at the end of statement on multiline shell script as shown below
编辑：我们不需要使用 EOF，只需将分号放在多行 shell 脚本的语句末尾，如下所示
sh """ if [ -d /opt/tomcat/apache-tomcat-8.5.38/webapps/ROOT ] ;
then ;
ssh $USERNAME@$DEV_HOSTNAME 'sudo rm -rf /opt/tomcat/apache-tomcat-8.5.38/webapps/ROOT' ;
echo 'ROOT directory deleted successfully' ;
fi ;
"""
