- It was suggested in https://github.com/Homebrew/brew/issues/ 16733 that
`brew desc <formula_or_cask>` should work like `brew info <formula_or_cask>`
and print the description of the package without needing `--eval-all`.
- Looking at the code, it seems like it's only searching that needs
`--eval-all`, so limit the check to that.
Before:
```shell
$ brew desc hello
Error: `brew desc` needs `--eval-all` passed or `HOMEBREW_EVAL_ALL` set!
```
After:
```shell
$ brew desc hello
hello: Program providing model for GNU coding standards and practices
$ brew desc --search hello
Error: Invalid usage: `brew desc --search` needs `--eval-all` passed or `HOMEBREW_EVAL_ALL` set!
$ brew desc --search --eval-all hello
==> Formulae
dsh: Dancer's shell, or distributed shell
hello: Program providing model for GNU coding standards and practices
```
- Don't pass through `args:` when called with no arguments; these don'T
need to be passed and end up breaking things instead.
- Make `T.must` as early as possible.
- Add a type signature to `git_log` to enable `typed: strict` and catch
these sorts of bugs earlier next time.
- `--follow` only works with a single file so check if the path is a
file before adding it to the arguments.
The extra module was their to facilitate testing but now that
everything is properly namespaced and each command is an instance
we can just move the methods into the command. Since it's an
instance now we don't need to be as careful about caching either.
This updates logic to add a `#scheme_and_version` method to be used
with `.sort_by` and `.max_by`. Using `Keg#version` by itself can be
inaccurate when different version schemes are present. This also
updates the behavior of `Formula#eligible_kegs_for_cleanup` to match
the previous behavior. We were dropping the wrong keg based on the
sort being reversed in a previous PR.
