Path filtering example

config.yml

version: 2.1

setup: true

orbs:
  path-filtering: circleci/path-filtering@0.0.2

workflows:
  setup-workflow:
    jobs:
      - path-filtering/filter:
          base-revision: main
          config-path: .circleci/continue-config.yml
          mapping: |
            project1/.* project-one true
            project2/.* project-two true
            project3/.* project-three true
            shared-things/.* run-them-all true

continue-config.yml

version: 2.1

executors:
  base:
    docker:
      - image: cimg/base:stable

parameters:
  project-one:
    type: boolean
    default: false
  project-two:
    type: boolean
    default: false
  project-three:
    type: boolean
    default: false
  run-them-all:
    type: boolean
    default: false
    
jobs:
  project_one:
      executor: base
      steps:
        - run: 
            command: |
              echo "project one"
              
  project_two: 
      executor: base
      steps:
        - run: 
            command: |
              echo "project two" 
  project_three: 
      executor: base
      steps:
        - run: 
            command: |
              echo "project three"
  all_projects: 
      executor: base
      steps:
        - run: 
            command: |
              echo "all"   
              
workflows:
  build-1:
    when: 
      or: 
        - << pipeline.parameters.project-one >>
        - << pipeline.parameters.run-them-all >> 
    jobs:
      - project_one
      
  build-2:
    when: 
      or: 
        - << pipeline.parameters.project-two >>
        - << pipeline.parameters.run-them-all >>     
    jobs:
      - project_two
      
  build-3:
    when: 
      or: 
        - << pipeline.parameters.project-three >>
        - << pipeline.parameters.run-them-all >> 
    jobs:
      - project_three
      
  build-shared-other:
    when: << pipeline.parameters.run-them-all >>
    jobs:
      - all_projects