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How-to: Run a step only if a file exists

  • Updated

Overview

You want to run a step in your pipeline, only if a certain file exists

Details

  1. Clone your repository
  2. After the clone step, check for existence of file.
  3. If it exists, set your Variable to true. Otherwise, set it to false.
  4. In the appropriate step, check whether the variable is true or not.
  steps:
    main_clone:
      type: git-clone
      description: Cloning main repository...
      repo: ${{CF_REPO_OWNER}}/${{CF_REPO_NAME}}
      revision: '${{CF_REVISION}}'
    checkFile:
      image: alpine
      commands:
        - if [ -f README.md ]; then cf_export fileExists=true; else cf_export fileExists=false; fi
    confirmFile:
      image: alpine
      commands: 
        - echo $fileExists
      when:
        condition:
          all:
            fileExists: '"${{fileExists}}" == "true"'

Note:

You can use this to also check if a file is missing, or to perform similar more complicated checks and create a flow for your pipelines.

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