My .zshrc - robbyrussell/agnoster themes and terminal revamp

.zshrc

# ---------------------------------------------------------------------------- #
#                                Theme / Settings                              #
# ---------------------------------------------------------------------------- #

ZSH_THEME="robbyrussell"
ENABLE_AUTOCORRECTION="true"
COMPLETION_WAITING_DOTS="true"
DISABLE_UNTRACKED_FILES_DIRTY="true"

# ---------------------------------------------------------------------------- #
#                     General Exports and Variables                            #
# ---------------------------------------------------------------------------- #

export ZSH="$HOME/.oh-my-zsh"
export LANG=en_US.UTF-8
export WORKSPACE="$HOME/workspace"
export PERSONAL="$WORKSPACE/personal"
export NVM_DIR="$HOME/.nvm"
export PYTHONSTARTUP="$HOME/.python_startup.py"
export UPDATE_ZSH_DAYS=13
export PYENV_ROOT="$HOME/.pyenv"

# ---------------------------------------------------------------------------- #
#                                   Homebrew                                   #
# ---------------------------------------------------------------------------- #

BREW="/opt/homebrew"
BREW_SHARE="$BREW/share"
export HOMEBREW_AUTO_UPDATE_SECS="345600"  # 2 days
export HOMEBREW_AUTO_CLEANUP_SECS="345600" # 2 days
eval "$(/opt/homebrew/bin/brew shellenv)"

# ---------------------------------------------------------------------------- #
#                                    Aliases                                   #
# ---------------------------------------------------------------------------- #

alias a.="git add --all && git commit -m"
alias co="git checkout"
alias cob="git checkout -b"
alias gitc="cz commit"
alias gitd="git diff"
alias hs="history | grep"
alias ip="ipconfig getifaddr en0"
alias mkcd="go() { mkdir -p "$1"; cd "$1" }; go "
alias nis="npm run i --save "
alias nisd="npm run i --save-dev "
alias pip="pip3"
alias python="python3"

# ---------------------------------------------------------------------------- #
#                                    Plugins                                   #
# ---------------------------------------------------------------------------- #

plugins=(
  brew
  colorize
  forklift
  git
  history
  macos
  z
  zsh-autosuggestions
  zsh-completions
  zsh-syntax-highlighting
)

# ---------------------------------------------------------------------------- #
#                                 Highlighters                                 #
# ---------------------------------------------------------------------------- #

export ZSH_HIGHLIGHT_HIGHLIGHTERS_DIR="$BREW_SHARE/zsh-syntax-highlighting/highlighters"

ZSH_HIGHLIGHT_HIGHLIGHTERS=(
  main
  brackets
  pattern
  regexp
  cursor
  root
  line
)

# ---------------------------------------------------------------------------- #
#                       Setup Virtual Environments                             #
# ---------------------------------------------------------------------------- #

command -v pyenv >/dev/null || export PATH="$PYENV_ROOT/bin:$PATH"
eval "$(pyenv init -)"
export PATH=$HOME/bin:/usr/local/bin:$PATH:/Applications/Postgres.app/Contents/Versions/latest/bin:$NVM_DIR

# ---------------------------------------------------------------------------- #
#                        Run Shell Files (if they exist)                       #
# ---------------------------------------------------------------------------- #

source_commands() {
  GCLOUD_SDK="$WORK/google-cloud-sdk" # Work
  NVM="$BREW/opt/nvm"

  local run_files=(
    "$HOME/.iterm2_shell_integration.zsh"
    "$NVM/nvm.sh"
    "$ZSH/oh-my-zsh.sh"
    "$HOME/.fzf.zsh"
    "$BREW_SHARE/zsh-autosuggestions/zsh-autosuggestions.zsh"
    "$BREW_SHARE/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh"
  )

  local missing=()

  for file in ${files[@]:1}; do
    if [[ ! -e $file ]]; then missing+=" $file"; fi
    if [[ -e $file ]]; then source $file; fi
  done

  if [[ ! -z ${missing} ]]; then
    echo "Not found: ($missing )"
  fi
}
source_commands

# ---------------------------------------------------------------------------- #
#                                   Agnoster                                   #
# ---------------------------------------------------------------------------- #

# agnoster's Theme - https://gist.github.com/3712874
# A Powerline-inspired theme for ZSH
#
# # README
#
# In order for this theme to render correctly, you will need a
# [Powerline-patched font](https://gist.github.com/1595572).
#
# In addition, I recommend the
# [Solarized theme](https://github.com/altercation/solarized/) and, if you're
# using it on Mac OS X, [iTerm 2](http://www.iterm2.com/) over Terminal.app -
# it has significantly better color fidelity.
#
# # Goals
#
# The aim of this theme is to only show you *relevant* information. Like most
# prompts, it will only show git information when in a git working directory.
# However, it goes a step further: everything from the current user and
# hostname to whether the last call exited with an error to whether background
# jobs are running in this shell will all be displayed automatically when
# appropriate.

# --------------- Segments of the prompt -------------- #

typeset -aHg AGNOSTER_PROMPT_SEGMENTS=(
  prompt_status
  prompt_context
  prompt_virtualenv
  prompt_dir
  prompt_git
  prompt_end
)

# ----------------- Segment drawing ----------------- #
# A few utility functions to make it easy and re-usable
# to draw segmented prompts

CURRENT_BG='NONE'
if [[ -z "$PRIMARY_FG" ]]; then
  PRIMARY_FG=black
fi

# Characters
SEGMENT_SEPARATOR="\ue0b0"
PLUSMINUS="\u00b1"
BRANCH="\ue0a0"
DETACHED="\u27a6"
CROSS="\u2718"
LIGHTNING="\u26a1"
GEAR="\u2699"

# ------------------ Begin a segment --------------------- #
# Takes two arguments, background and foreground. Both can be omitted,
# rendering default background/foreground.
prompt_segment() {
  local bg fg
  [[ -n $1 ]] && bg="%K{$1}" || bg="%k"
  [[ -n $2 ]] && fg="%F{$2}" || fg="%f"
  if [[ $CURRENT_BG != 'NONE' && $1 != $CURRENT_BG ]]; then
    print -n "%{$bg%F{$CURRENT_BG}%}$SEGMENT_SEPARATOR%{$fg%}"
  else
    print -n "%{$bg%}%{$fg%}"
  fi
  CURRENT_BG=$1
  [[ -n $3 ]] && print -n $3
}

# --------------------------- End the prompt ---------------- #
# Closes any open segments

prompt_end() {
  if [[ -n $CURRENT_BG ]]; then
    print -n "%{%k%F{$CURRENT_BG}%}$SEGMENT_SEPARATOR"
  else
    print -n "%{%k%}"
  fi
  print -n "%{%f%}"
  CURRENT_BG=''
}

# ------------ Prompt components ---------------------------- #
# Each component will draw itself, and hide itself if no information
# needs to be shown Context: user@hostname (who am I and where am I)
prompt_context() {
  local user=$(whoami)

  if [[ "$user" != "$DEFAULT_USER" || -n "$SSH_CONNECTION" ]]; then
    prompt_segment
  fi
}

# -------- Git: branch/detached head, dirty status ----------- #
prompt_git() {
  local color ref
  is_dirty() {
    test -n "$(git status --porcelain --ignore-submodules)"
  }
  ref="$vcs_info_msg_0_"
  if [[ -n "$ref" ]]; then
    if is_dirty; then
      color=yellow
      ref="${ref} $PLUSMINUS"
    else
      color=green
      ref="${ref} "
    fi
    if [[ "${ref/.../}" == "$ref" ]]; then
      ref="$BRANCH $ref"
    else
      ref="$DETACHED ${ref/.../}"
    fi
    prompt_segment $color $PRIMARY_FG
    print -n " $ref"
  fi
}

# ------------- Dir: current working directory ----------------- #
prompt_dir() {
  prompt_segment blue $PRIMARY_FG ' %~'
}

# ---------------------------- Status: ------------------------ #
# - was there an error
# - am I root
# - are there background jobs?
prompt_status() {
  local symbols
  symbols=()
  [[ $RETVAL -ne 0 ]] && symbols+="%{%F{red}%}$CROSS"
  [[ $UID -eq 0 ]] && symbols+="%{%F{yellow}%}$LIGHTNING"
  [[ $(jobs -l | wc -l) -gt 0 ]] && symbols+="%{%F{cyan}%}$GEAR"

  [[ -n "$symbols" ]] && prompt_segment $PRIMARY_FG default " $symbols "
}

# ----------- Display current virtual environment -------------- #
prompt_virtualenv() {
  if [[ -n $VIRTUAL_ENV ]]; then
    color=cyan
    prompt_segment
    print -Pn " $(basename $VIRTUAL_ENV) "
  fi
}

# ------------------------- Main prompt ---------------------------- #
prompt_agnoster_main() {
  RETVAL=$?
  CURRENT_BG='NONE'
  for prompt_segment in "${AGNOSTER_PROMPT_SEGMENTS[@]}"; do
    [[ -n $prompt_segment ]] && $prompt_segment $PRIMARY_FG default
  done
}

prompt_agnoster_precmd() {
  vcs_info
  PROMPT='%{%f%b%k%}$(prompt_agnoster_main) '
}

prompt_agnoster_setup() {
  autoload -Uz add-zsh-hook
  autoload -Uz vcs_info

  prompt_opts=(cr subst percent)

  add-zsh-hook precmd prompt_agnoster_precmd

  zstyle ':vcs_info:*' enable git
  zstyle ':vcs_info:*' check-for-changes false
  zstyle ':vcs_info:git*' formats '%b'
  zstyle ':vcs_info:git*' actionformats '%b (%a)'
}

# ----------------- Run the setup function ------------------------ #
prompt_agnoster_setup "$@"