Homebrew places the rbenv executable in a location such as
`/usr/local/bin/rbenv`, which is in PATH. However, that is a symlink to
`/usr/local/Cellar/rbenv/<VERSION>/bin/rbenv`, which is itself a symlink to
`/usr/local/Cellar/rbenv/<VERSION>/libexec/rbenv`. Upon executing, rbenv
will add its own directory to PATH so that it can easily invoke its
subcommands.
When generating shims during `rbenv rehash`, rbenv will try to put the
absolute path to itself inside each shim so that shims would work even
if rbenv itself isn't in PATH. Under Homebrew, rbenv's directory will be
the versioned directory in Homebrew's Cellar. However, due to Homebrew's
auto-cleanup functionality, shims generated this way will be broken
after upgrading rbenv because of the versioned Cellar path.
This changes how rbenv discovers itself in PATH: it will look at the
original PATH, not in the one modified by rbenv, with the intention of
excluding results under rbenv's own `libexec/`. If rbenv wasn't found in
PATH, return the absolute path to rbenv's own `bin/rbenv`.
This speeds up subsequent `rbenv init -` executions for the user who
followed these instructions because the shell will no longer have to be
detected each time.
GitHub's expected filename is CODE_OF_CONDUCT.md. Whether that is the best name or even the current de facto standard is to be debated. But moving forward, this is likely the filename that will become the most common within the community, as that is the name GitHub expects and suggests.
This simply renames the existing code of conduct file from CONDUCT.md to CODE_OF_CONDUCT.md to conform to GitHub's preference.
Silver Searcher respects .gitignore, so having an .agignore file is
redundant. (Both patterns present in .agignore are already present in
.gitignore.)
It's also worth noting that silver searcher uses .agignore _in addition
to_ .gitignore, so removing this file will not cause ag to start
ignoring _additional_ patterns from .gitignore (it's already respecting
those patterns).
Since fish 3.10 at least, the current way of loading rbenv in `fish` is misbehaving, at least in some environments:
```
source: Error encountered while sourcing file '/var/folders/pj/jn249gcn7ddfrjzj2_9mxjhw0000gp/T//.psub.f0iJSWRByB':
source: No such file or directory
```
This changes the initialization to the method recommended by a `fish` developer here: https://github.com/fish-shell/fish-shell/issues/6613#issuecomment-586679958
