Add installed and outdated to cask json output

[zkokaja]

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  I get one failure on an unrelated test dev-cmd/tap-new:11 because git outputs a warning regarding the init.defaultBranch setting on new repos, and the test expected nothing in standard error.
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This commit adds two new values to the brew info --cask --json=v2 command to include whether the cask is outdated and the currently installed versions.

I had to modify one test script to match the new JSON output in order to pass.

[reitermarkus]

This should be a boolean.

[zkokaja]

I was trying to match the keys with formula.rb which lists installed kegs with the installed key. I see why it makes sense as a boolean though. How about changing it to a boolean, and then adding "installed_versions" => versions to provide additional details?

[vitorgalvao]

How about changing it to a boolean, and then adding "installed_versions" => versions to provide additional details?

You can’t have more than one version of a cask installed at once—that would make no sense for most casks. So just the boolean, and no further details necessary.

[zkokaja]

Any suggestions regarding using installed as a boolean, and installed_versions to list out the installed versions?

[zkokaja]

Hi, I wanted to give a better description of this request and why it's needed. I think I should have opened an issue first to discuss before submitting the PR (sorry! first time contributing to open source). @reitermarkus, please let me know if you'd like me to open an issue first, or if I should make further changes. Thanks!

Description: The goal of this change is to add information on cask installed versions when using the JSON API, as well as to make it more similar to the JSON output for formulae. For example, brew info --json=v2 jq includes all this information:

      "installed": [
        {
          "version": "1.6",
          "used_options": [],
          "built_as_bottle": true,
          "poured_from_bottle": true,
          "runtime_dependencies": [
            {
              "full_name": "oniguruma",
              "version": "6.9.6"
            }
          ],
          "installed_as_dependency": false,
          "installed_on_request": true
        }
      ],
      "outdated": false,

Whereas if I run brew info --json=v2 --cask rabbitmq I get no output regarding what version is installed or whether it's outdated.

Justification: Adding these keys to the output makes it easier for downstream users of the API to use the info command to get a complete summary of the brew state without needing to coordinating calls between info and outdated. Also, making the API similar between formulae and casks is advantageous for consistency and consumption.

Use case: I plan to use this in my https://github.com/zkokaja/Brewlet application to notify users when casks are out of date, and show them the versions they have.

Open question: Should installed be a boolean and installed_versions be a list of installed versions? Or should installed be similar to the output for formulae?

[SeekingMeaning]

LGTM; if necessary, we could make changes in follow-up PRs

[MikeMcQuaid]

Thanks so much for your first contribution! Without people like you submitting PRs we couldn't run this project. You rock, @zkokaja!

[zkokaja]

Awesome, thank you!! 😊