Asyncify version of Greg Hurrell's zsh prompt

taken from https://github.com/wincent/wincent/blob/master/README.md#prompt

Visible here are:

• Concise left-hand prompt consisting of:
  • Last component of current directory (abbreviates $HOME to ~ if possible).
  • Prompt marker, ❯, the "HEAVY RIGHT-POINTING ANGLE QUOTATION MARK ORNAMENT" (that's \u276f, or e2 9d af in UTF-8).
• Extended right-hand size prompt which auto-hides when necessary to make room for long commands and contains:
  • Duration of previous command in adaptive units (seconds, minutes, hours, days, depending on duration).
  • An async git prompt consists of:
    • Current version control branch name.
    • Current version control worktree status using colors that match those used in git status:
      • Green dot indicates staged changes.
      • Red dot indicates unstaged changes.
      • Blue dot indicates untracked files.
  • Full version of current working directory (again, abbreviating $HOME to ~).

Nested shells are indicated with additional prompt characters. For example, one nested shell:

Two nested shells:

Root shells are indicated with a different color prompt character and the word "root":

Nesting within a root shell is indicated like this:

Two nested shells:

If the last command exited with a non-zero status (usually indicative of an error), a yellow exclamation is shown:

If there are background processes, a yellow asterisk is shown:

• Async is great for working with large repository (ex: https://github.com/gentoo/gentoo)

1. Clone this repository

$ git clone https://github.com/khuei/winline.git

2. Add the repository to $fpath in .zshrc

fpath+=/path/to/winline

3. source either winline.zsh or winline.plugin.zsh in .zshrc

. /path/to/winline.zsh

# or

. /path/to/winline.plugin.zsh

This prompt is heavily tailored to my needs so it is not very customizable compare to other mainstream zsh prompts such as:

• https://github.com/sindresorhus/pure
• https://github.com/starship/starship
• https://github.com/romkatv/powerlevel10k

Therefore, it is highly encourage that you use either one of the above or a different prompt if you want more granular customization or advance feature.