需求分析
在jenkins中没有找到构建前插件,每次构建时间很长,希望可以实现判断代码是否更新,如果没更细则停止构建步骤。
实现步骤
在构建时执行shell命令,而jenkins提供的的环境变量可以实现此判断 https://wiki.jenkins.io/display/JENKINS/Conditional+BuildStep+Plugin
GIT_COMMIT
The commit hash being checked out.
GIT_PREVIOUS_COMMIT
The hash of the commit last built on this branch, if any.
GIT_PREVIOUS_SUCCESSFUL_COMMIT
The hash of the commit last successfully built on this branch, if any.
GIT_COMMIT 当前拉取版本的commit id
GIT_PREVIOUS_COMMIT 最后在此分支上构建的 commit id
GIT_PREVIOUS_SUCCESSFUL_COMMIT 最后在此分支上成功构建的 commit id号
#!/bin/bash if [ $GIT_PREVIOUS_SUCCESSFUL_COMMIT == $GIT_COMMIT ];then
echo "no change,skip build"
exit 0
else
echo "git pull commmit id not equals to current commit id trigger build"
fi
注意,不能使用-eq 只能使用==
提交新版本后,构建提示如下:
$ git show|head -1
commit 27617e680d2e6bf00062700623792aef63926edd
在jenkins中执行构建