Defining Conditional Steps

LiorGonda

NOTE: this is not much of a question; but a suggestion/request for consideration of new functionality

 

I want to run some steps only in particular cases.

My expectation would be like:

definitions:
 steps:
  - step: &do-some-deployemnt
   name: Do some Deployment
   script:
    - echo "this happens only if condition is met"

pipelines:
 pull-requests:
  '**':
   - step:
    script:
     - echo "this happens only if condition is met"
    when: <condition>
 custom:
  some-custom-pipeline-1:
   - variables:
    - name: VAR_NAME
   - step:
    <<: *do-some-deployemnt
   deployment: Production
   when: <condition>
  some-custom-pipeline-2:
   - variables:
    - name: VAR_NAME
   - step:
    <<: *do-some-deployemnt
    deployment: Test
    when: <condition>
   - step:
    <<: *do-some-deployemnt
    deployment: Production-1
    when: <condition>
   - step:
    <<: *do-some-deployemnt
    deployment: Production-2
    when: <condition>

for the purpose of clarity, lets say in Bit-Bucket setting we created "deployment variables"

on here

• pull-requests uses git diff
• some-custom-pipeline-1 uses "custom variables"
• some-custom-pipeline-2 uses both "custom variables" and "deployment variables"

now, condition could be anything which evaluates to true/false at the end

when: $(git diff --name-only --diff-filter=AMDR HEAD^ some-directory-or-file) != ""

we have multiple steps, only deploy the one if a deployment variable matches the user input variable

when: ENVIRONMENT_NAME = VAR_NAME # if deployment variable matched custom variable

based on a custom variable input by the user. On example some-custom-pipeline-2, there is 1 test deployment and 2 different production deployments. User might want to deploy Test, or both Productions.

when: VAR_NAME = 'production' # if custom variable matched string

NOTE:

a similar question was asked at:

https://community.atlassian.com/t5/Bitbucket-Pipelines-questions/Defining-Conditional-Steps/qaq-p/1192816?tempId=eyJvaWRjX2NvbnNlbnRfbGFuZ3VhZ2VfdmVyc2lvbiI6IjIuMCIsIm9pZGNfY29uc2VudF9ncmFudGVkX2F0IjoxNTgzODY0ODE3NDU2fQ%3D%3D

but this question was routed ONLY to file changes

ktomk

As far as I know steps can not have conditions (e.g. the when in your question, like the when in Ansible probably).

But steps can have a script and within a script you can encode all sort of conditional expressions. So maybe moving the condition into the step could do it in your case already?