title: Is it possible to trigger different task for different changed files in bitbucket pipeline?
body: <p>For example.</p>
  
  <p>My repo contains a three folders: "project1" "project2" and "core".</p>
  
  <p>When I change a files under "core" folder I want trigger "npm run test Project1" and "npm run test project2".</p>
  
  <p>If I changed the "project1" files I want test only "project 1".
  If I changed the "poject2" - I want test only "project2".</p>
  
  <p>I don't want to separate this folders on separate repositories, or use git submodules and subthrees. And also I don't want to every time test everything.</p>
  
  <p>I heard that in teamcity such task is called triggers.</p>
  
  <p>Does the "bitbucket pipeline" support this a kind of feature?</p>