Run Drone Pipeline only if files in Directory have changed

Drone Support
1

I am trying to setup a drone config to only run tasks when files within that path have changed for that pull request have changed.

Is this possible?

I have tried this method, but it still runs the pipeline anyway

---
kind: pipeline
name: pr-terraform-plan-digital-dev
type: kubernetes

trigger:
  event:
    - pull_request
  branch:
    - master
  when:
    event:
      - pull_request
    path:
      include:
        - terraform/infrastructure/digital_dev/**

concurrency:
  limit: 1

steps:
  - name: Fetch and Merge
    image: plugins/git
    commands:
      - "#!/bin/bash"
      - "git fetch origin"
      - "git checkout ${DRONE_SOURCE_BRANCH}"
      - "git merge origin/${DRONE_TARGET_BRANCH}"

  - name: Terraform Plan
    image: terraform    pull: always
    commands:
      - "echo $${CLOUD_CREDS} > /keyfile.json"
      - export GOOGLE_APPLICATION_CREDENTIALS="/keyfile.json"
      - cd terraform/infrastructure/digital_dev/
      - sops --decrypt terraform.tfvars.enc.env > terraform.tfvars
      - terraform init
      - terraform plan
    environment:
      CLOUD_CREDS:
        from_secret: dev_ci_creds


---
kind: pipeline
name: pr-terraform-plan-devtools
type: kubernetes

trigger:
  event:
    - pull_request
  branch:
    - master
  when:
    event:
      - pull_request
    path:
      include:
        - terraform/infrastructure/devtools/**

concurrency:
  limit: 1

steps:
  - name: Fetch and Merge
    image: plugins/git
    commands:
      - "#!/bin/bash"
      - "git fetch origin"
      - "git checkout ${DRONE_SOURCE_BRANCH}"
      - "git merge origin/${DRONE_TARGET_BRANCH}"

  - name: Terraform Plan
    image: terraform
    pull: always
    commands:
      - "echo $${CLOUD_CREDS} > /keyfile.json"
      - cd terraform/infrastructure/devtools/
      - sops --decrypt terraform.tfvars.enc.env > terraform.tfvars
      - terraform init
      - terraform plan
    environment:
      CLOUD_CREDS:
        from_secret: dev_ci_creds


---
kind: secret
name: dev_ci_creds
get:
  path: dev-terraform-service-account
  name: ci_creds

Thanks for any help in advance

2

It is absolutely possible, but you will need to make use of an conversion extension in order to bring that to pass. Meltwater has built an extension for path-based change detection and are building about 6k/day builds through drone.