使用Jenkins时，如果GIT_COMMIT无变化，跳过构建
使用插件： conditional-buildstep
A buildstep wrapping any number of other buildsteps, controlling their execution based on a defined condition (e.g. BuildParameter).
如下图所示，如果环境变量GIT_PREVIOUS_SUCCESSFUL_COMMIT不存在，或者GIT_COMMIT和GIT_PREVIOUS_SUCCESSFUL_COMMIT不同，才会执行构建
上图中脚本如下：
#!/bin/bash
if [ ! $GIT_PREVIOUS_SUCCESSFUL_COMMIT ];then
echo "GIT_PREVIOUS_SUCCESSFUL_COMMIT is not exists." exit 0 else echo "GIT_COMMIT=[$GIT_COMMIT],GIT_PREVIOUS_SUCCESSFUL_COMMIT=[$GIT_PREVIOUS_SUCCESSFUL_COMMIT]" if [ $GIT_PREVIOUS_SUCCESSFUL_COMMIT == $GIT_COMMIT ];then echo "GIT_COMMIT is equals to GIT_PREVIOUS_SUCCESSFUL_COMMIT,skip build." exit -1 else echo "GIT_COMMIT is not equals to GIT_PREVIOUS_SUCCESSFUL_COMMIT" exit 0 fi fi