This allows people to incorporate the thoughtbot dotfiles into their own
dotfiles in a more fine-grained manner.
I left some things in zshrc that we should eventually handle more
precisely:
- Load `.zsh/functions/*`. This could instead be replaced with: `mv
.zsh/functions/* .zsh/configs`.
- Load `.aliases`. This could instead be replaced with: `mv .aliases
.zsh/configs/aliases.zsh`.
- Load `.zshrc.local`. This file can realistically go away entirely,
with people adding their own files to `.zsh/configs`.
A further refactoring, which I have done locally, is to introduce a
`~/.sh/configs` directory, in which people can put POSIX-specific
configuration that can be shared between GNU Bash, zsh, ksh, etc:
aliases, functions, paths, prompts, and so on. But one step at a time.
Other changes:
* Move aliases setup to occur after loading other config, as some of our
aliases depend on environment variables having been set, so alias
loading must come last after we've sourced `zsh/configs`.
* Move autocompletion for `g` function from the function definition to
to `zsh/completions/_g`
* Move `PATH` setup to `zsh/configs/post` to ensure it happens after
other configuration that might alter the `PATH`
**Bring executables into better shellcheck compliance**
While evaluating linting and testing options for our shell
configuration, a run of Shellcheck against our executables turned up
some places where we could use more consistent syntax across our
executables, such as always using a shebang or quoting `$HOME` when we
build up a larger directory.
**Update syntax for zsh functions and completions**
A few changes found while linting zsh configs with shellcheck:
* thoughtbot's [style guide] [guide] calls for `$(..)` over backticks
when capturing command output
* use `-gt` to test array length in arguments
[guide]: https://github.com/thoughtbot/guides/tree/master/best-practices
With arguments, g acts like git.
Without arguments, it runs `git status`.
* Source functions/* after loading ZSH completion so `compdef` is available to g
alias
