equality not consistent

[senorsmile]

I assume I'm making some strange error here, but I cannot figure out what the error is. 

I have a "changed_when" clause I've constructed that never seems to work.  However, if I take out the clause into its own debug statement, it seems to work.  

I have reproduced this with the following ansible: 

- hosts: localhost

  gather_facts: False

  tasks:

    

  - name: Update Jenkins-Jobs on Jenkins Master - docker container

    command: |

      echo "INFO:jenkins_jobs.cli.subcommand.update:Updating jobs in ['./jobs/'] ([])

            INFO:root:Caching type parameters of parameters = jenkins_jobs.modules.parameters:Parameters

            INFO:root:Caching type builders of builders = jenkins_jobs.modules.builders:Builders

            INFO:jenkins_jobs.builder:Number of jobs generated:  1

            INFO:jenkins_jobs.cli.subcommand.update:Number of jobs updated: 0

            INFO:jenkins_jobs.builder:Number of views generated:  0

            INFO:jenkins_jobs.cli.subcommand.update:Number of views updated: 0

      "

    register: jjb_update

    changed_when: 

      - ( jjb_update.stdout_lines | regex_replace('.*jobs updated.\s+(\d+).*', '\1') != '0' )

  - name: Number of jobs updated

    debug:

      msg: |

        {{ jjb_update.stdout_lines | regex_replace('.*jobs updated.\s+(\d+).*', '\1') }}

  - name: Number of jobs updated equals 0?

    debug:

      msg: |

        {{ jjb_update.stdout_lines | regex_replace('.*jobs updated.\s+(\d+).*', '\1') == '0' }}

The output I get in both 2.8.6 and 2.9.1 is 

TASK [Update Jenkins-Jobs on Jenkins Master - docker container] ************************************************************************************************************

changed: [localhost]

TASK [Number of jobs updated] **********************************************************************************************************************************************

ok: [localhost] => {

    "msg": "0\n"

}

TASK [Number of jobs updated equals 0?] ************************************************************************************************************************************

ok: [localhost] => {

    "msg": "True\n"

}

If the output is 0 and the check is true, the first task should NOT show changed.  

[Kai Stian Olstad]

On 30.11.2019 00:16, senorsmile wrote:
> - hosts: localhost
> gather_facts: False
> tasks:
>
> - name: Update Jenkins-Jobs on Jenkins Master - docker container
> command: |
> echo "INFO:jenkins_jobs.cli.subcommand.update:Updating jobs in
> ['./jobs/'] ([])
> INFO:root:Caching type parameters of parameters =
> jenkins_jobs.modules.parameters:Parameters
> INFO:root:Caching type builders of builders =
> jenkins_jobs.modules.builders:Builders
> INFO:jenkins_jobs.builder:Number of jobs generated: 1
> INFO:jenkins_jobs.cli.subcommand.update:Number of jobs updated:
> 0
> INFO:jenkins_jobs.builder:Number of views generated: 0
> INFO:jenkins_jobs.cli.subcommand.update:Number of views
> updated: 0
> "
> register: jjb_update
> changed_when:
> - ( jjb_update.stdout_lines | regex_replace('.*jobs updated.\s+(\d+).*', '\1') != '0' )

jjb_update.stdout_lines is a list and the regex_replace filter work on strings, so it probably should have failed.

You can use the search test instead on stdout

changed_when: jjb_update.stdout is not search('jobs updated:.0')

--
Kai Stian Olstad

[shaun]

This seems to have been some sort of quoting issue.  

After much troubleshooting, I found the working solution: 

  changed_when:
    - ((jjb_update.stderr_lines | regex_replace('.*jobs updated.\\s+(\\d+).*', '\\1')) != '0' )

--

Shaun

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