Replace weird non-globs with array and loop, as suggested by `shellcheck`. Alsö, simplify several constructs to eliminate external binaries.
Alsö, see mvdan/sh issue 558
lib/helpers: unbound positional parameters
- Improve `pushd`/`popd` somewhat
- local some parameters
- Lose weird Mac-specific alternate shell startup file (Bash loads startup files on Mac the same as it does on any other *nix system.)
Quote things, SC2268, SC2143, SC2181, SC2162, SC2016, SC2013, &c.
Rewrite globbing per `shellcheck`’s SC2013, and alsö s/typeset/local/g. Eliminate `compgen` where possible.
Alsö: use the existing utility functions `_bash-it-get-component-type-from-path` and `_bash-it-get-component-name-from-path`, which just use parameter substitution anyway. Why was `sed` here?
Alsö, don't add not-existing directories to `$PATH` in `pathmunge()`.
Finally, merge PR #1865 from NoahGorny...and clean it a bit...
- Don't write to disk, just pipe.
- Don't loop, just do all functions.
Performance of old implementation on my system:
```
real 0m9.996s
user 0m5.318s
sys 0m9.126s
```
Performance of new implementation on my system:
```
real 0m0.052s
user 0m0.069s
sys 0m0.025s
```
Don't use `local -n var` so that we can support v3.2...
Note: function names and variable names are different namespaces, so we can have a variable named the same as the function...which makes it really easy to predict default names for results when returning this way.
...to replace `_set-prefix-based-on-path()` in `scripts/reloader`.
Deliberately does not use `_bash-it-get-component-name-from-path()`/`_bash-it-get-component-type-from-path()` as we need some of the intermediate state and would have to reimplement anyway.
Alsö, fix tests to load `lib/colors` instead of `lib/appearance`...wut
Alsö, `short-circuit _has_colors()`: If we already looked up colors, and we already have them, then don't run `tput` again.
My apologies to future `git blame` hunters ♥
Create an array `_bash_it_library_finalize_hook` and loop at the end of the main `bash_it.sh` to run each element in the array.
The purpose here is to run some command after everything else has been loaded. For example, the appearance lib checks for executables for SCM commands, but `$PATH` may be altered after appearance has loaded and therefore some available commands may never be discovered. Therefore, create `_bash_it_appearance_scm_init()` and add it to the hook. It will re-check at end of `bash_it.sh` just before prompt is first displayed.
John D Pell
John D Pell
Noah Gorny