MacOS compatibility

[lkubb]

PR progress checklist (to be filled in by reviewers)

• [ ] Changes to documentation are appropriate (or tick if not required)
• [ ] Changes to tests are appropriate (or tick if not required)
• [ ] Reviews completed

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What type of PR is this?

Primary type

• [ ] [build] Changes related to the build system
• [ ] [chore] Changes to the build process or auxiliary tools and libraries such as documentation generation
• [ ] [ci] Changes to the continuous integration configuration
• [ ] [feat] A new feature
• [x] [fix] A bug fix
• [ ] [perf] A code change that improves performance
• [ ] [refactor] A code change that neither fixes a bug nor adds a feature
• [ ] [revert] A change used to revert a previous commit
• [ ] [style] Changes that do not affect the meaning of the code (white-space, formatting, missing semi-colons, etc.)

Secondary type

• [ ] [docs] Documentation changes
• [ ] [test] Adding missing or correcting existing tests

Does this PR introduce a BREAKING CHANGE?

No.

Related issues and/or pull requests

I did not open issues for both fixes since the cause is evident.

1. remove-macpackage-salt uses file.absent, but is referenced by salt-minion onchanges_in requisite as cmd: remove-macpackage-salt
2. There is no group root on MacOS:

   ----------
         ID: permissions-minion-config
   Function: file.managed
       Name: /private/etc/salt/minion
     Result: False
    Comment: Group root is not available
    Started: 09:04:11.330316
   Duration: 2.895 ms

3. The unless requisites on two MacOS-specific states always evaluate to false, causing a reinstall on every run on MacOS. This is caused by an incorrect shell command.

Describe the changes you're proposing

• Fix faulty onchanges_in requisite on salt-minion for remove-macpackage-salt.
• Include MacOS in the list of OS where the root user's primary group is wheel (correction: staff, but wheel exists at least. correction^2: It is wheel, staff is the admin user's primary group).
• Fix incorrect unless shell command on salt-minion and download-salt-minion on MacOS.

Pillar / config required to test the proposed changes

Debug log showing how the proposed changes work

Documentation checklist

• [ ] Updated the README (e.g. Available states).
• [ ] Updated pillar.example.

Testing checklist

There is no test suite for MacOS.

• [ ] Included in Kitchen (i.e. under state_top).
• [ ] Covered by new/existing tests (e.g. InSpec, Serverspec, etc.).
• [ ] Updated the relevant test pillar.

Additional context

[myii]

Thanks for the PR, @lkubb. It would be great if we had MacOS testing running in the CI but we haven't got that far yet.

@noelmcloughlin Do you still have access to MacOS minions that you can test this on?

[lkubb]

Any updates on this PR? :) Disregarding the missing root group, the issues described here can be retraced by checking the code, which cannot work as intended in its current form.