Regarding jenkins

[Prajot1990]

Hi,

In a git repo if a file is committed, then trigger a build only for that file instead of building everything from the repo
For instance, if a repo has Java code and generates a bunch of jar files as the output after the build, instead of building all the jar files every time something is checked in, build only for the file / folder content which has been updated recently.
without using Jenkins fs trigger plugin ,as it,s client requirement.

[qrtt1]

The situation depends on your build tool. For example, Gradle supports the incremental building feature which watches input sets and build artifacts as needed.

However, there are some side effects if some derived files should be removed before building. It might cause the output going wrong. It is supposed to clean up any build artifacts at the first step.