Conditional "persist_to_workspace"

Build Environment
6

specify only directory and persist all files within, not the absolute to the file and it would not fail if the directory was empty or

You can do, below is a full example where persist_to_workspace is working on a directory, rather than a file. The only real complication is correctly setting the root point within the file system to allow this to happen. If you remove the “touch work/file” line this example should still work.

version: 2.1

orbs:
  python: circleci/python@2.1.1
  
jobs:
  test_persist_job: 
    docker:
      - image: cimg/base:current
    resource_class: small
    steps:
      - run:
          name: create a working directory with a file for persist_to_workspace
          command: |
                   mkdir work
                   touch work/file
                   pwd
                   ls
                   ls work
      - persist_to_workspace:
          root: ./
          paths:
            - "work"
          
  test_attach_job: 
    docker:
      - image: cimg/base:current
    resource_class: small
    steps:
      - attach_workspace:
          at: ./
      - run:
          name: display what was attached
          command: |
                   pwd
                   ls
                   ls work
                   
workflows:
  test:
    jobs:
      - test_persist_job
      - test_attach_job:
          requires:
            - test_persist_job

One thing to note is that any pattern matching is done using the rules defined by the Glob package found in the Go programming language

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