My Current .zshrc

Updated: 18 07 2020

Really should leverage zsh more…but here we are

File: ~/.zshrc

# If you come from bash you might have to change your $PATH.
export PATH=$HOME/bin:/usr/local/bin:$PATH

# Path to your oh-my-zsh installation.
export ZSH="$HOME/.oh-my-zsh"

# For brew, at least
export PATH=/usr/local/bin:$PATH

# NVM Stuff
# export NVM_DIR="$HOME/.nvm"
# . "$(brew --prefix nvm)/nvm.sh"

export NVM_DIR="$HOME.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh"  # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion

# Add RVM to PATH for scripting. Make sure this is the last PATH variable change.
export PATH="$PATH:$HOME/.rvm/bin"

# NVM Stuff
# export NVM_DIR="$HOME/.nvm"
# . "/usr/local/opt/nvm/nvm.sh"

# Set name of the theme to load --- if set to "random", it will
# load a random theme each time oh-my-zsh is loaded, in which case,
# to know which specific one was loaded, run: echo $RANDOM_THEME
# See https://github.com/robbyrussell/oh-my-zsh/wiki/Themes
# ZSH_THEME="robbyrussell"
# ZSH_THEME="powerlevel9k/powerlevel9k"
ZSH_THEME="agnoster"

# Set list of themes to pick from when loading at random
# Setting this variable when ZSH_THEME=random will cause zsh to load
# a theme from this variable instead of looking in ~/.oh-my-zsh/themes/
# If set to an empty array, this variable will have no effect.
# ZSH_THEME_RANDOM_CANDIDATES=( "robbyrussell" "agnoster" )

# Uncomment the following line to use case-sensitive completion.
# CASE_SENSITIVE="true"

# Uncomment the following line to use hyphen-insensitive completion.
# Case-sensitive completion must be off. _ and - will be interchangeable.
# HYPHEN_INSENSITIVE="true"

# Uncomment the following line to disable bi-weekly auto-update checks.
# DISABLE_AUTO_UPDATE="true"

# Uncomment the following line to change how often to auto-update (in days).
# export UPDATE_ZSH_DAYS=13

# Uncomment the following line to disable colors in ls.
# DISABLE_LS_COLORS="true"

# Uncomment the following line to disable auto-setting terminal title.
# DISABLE_AUTO_TITLE="true"

# Uncomment the following line to enable command auto-correction.
# ENABLE_CORRECTION="true"

# Uncomment the following line to display red dots whilst waiting for completion.
# COMPLETION_WAITING_DOTS="true"

# Uncomment the following line if you want to disable marking untracked files
# under VCS as dirty. This makes repository status check for large repositories
# much, much faster.
# DISABLE_UNTRACKED_FILES_DIRTY="true"

# Uncomment the following line if you want to change the command execution time
# stamp shown in the history command output.
# You can set one of the optional three formats:
# "mm/dd/yyyy"|"dd.mm.yyyy"|"yyyy-mm-dd"
# or set a custom format using the strftime function format specifications,
# see 'man strftime' for details.
# HIST_STAMPS="mm/dd/yyyy"

# Would you like to use another custom folder than $ZSH/custom?
# ZSH_CUSTOM=/path/to/new-custom-folder

# Which plugins would you like to load?
# Standard plugins can be found in ~/.oh-my-zsh/plugins/*
# Custom plugins may be added to ~/.oh-my-zsh/custom/plugins/
# Example format: plugins=(rails git textmate ruby lighthouse)
# Add wisely, as too many plugins slow down shell startup.
plugins=(
  git
)

source $ZSH/oh-my-zsh.sh

# User configuration

# export MANPATH="/usr/local/man:$MANPATH"

# You may need to manually set your language environment
# export LANG=en_US.UTF-8

# Preferred editor for local and remote sessions
# if [[ -n $SSH_CONNECTION ]]; then
#   export EDITOR='vim'
# else
#   export EDITOR='mvim'
# fi

# Compilation flags
# export ARCHFLAGS="-arch x86_64"

# ssh
# export SSH_KEY_PATH="~/.ssh/rsa_id"

# Set personal aliases, overriding those provided by oh-my-zsh libs,
# plugins, and themes. Aliases can be placed here, though oh-my-zsh
# users are encouraged to define aliases within the ZSH_CUSTOM folder.
# For a full list of active aliases, run `alias`.
#
# Example aliases
# alias zshconfig="mate ~/.zshrc"
# alias ohmyzsh="mate ~/.oh-my-zsh"


# Add RVM to PATH for scripting. Make sure this is the last PATH variable change.
# export PATH="$PATH:$HOME/.rvm/bin"

# Automatically switch node versions when a directory has a `.nvmrc` file
autoload -U add-zsh-hook
# Zsh hook function
load-nvmrc() {
    local node_version="$(nvm version)" # Current node version
    local nvmrc_path="$(nvm_find_nvmrc)" # Path to the .nvmrc file
    # Check if there exists a .nvmrc file
    if [ -n "$nvmrc_path" ]; then
    local nvmrc_node_version=$(nvm version "$(cat "${nvmrc_path}")")
    # Check if the node version in .nvmrc is installed on the computer
    if [ "$nvmrc_node_version" = "N/A" ]; then
        # Install the node version in .nvmrc on the computer and switch to that node version
        nvm install
    # Check if the current node version matches the version in .nvmrc
    elif [ "$nvmrc_node_version" != "$node_version" ]; then
        # Switch node versions
        nvm use
    fi
    # If there isn't an .nvmrc make sure to set the current node version to the default node version
    elif [ "$node_version" != "$(nvm version default)" ]; then
    echo "Reverting to nvm default version"
    nvm use default
    fi
}
# Add the above function when the present working directory (pwd) changes
add-zsh-hook chpwd load-nvmrc
load-nvmrc

I have also modified ~/.oh-my-zsh/themes/agnoster.zsh-theme

It now only shows the last 2 segments of the dir path

# Dir: current working directory
prompt_dir() {
  # org:
  # prompt_segment blue $CURRENT_FG '%~'

  # Shorten the Displayed Directory Path to the last 2 Directories
  # https://medium.com/@shandou/how-to-shorten-zsh-prompt-oh-my-zsh-14185f3e7ab7
  prompt_segment blue $CURRENT_FG '%2~'

}

Remember to Reload the config after making changes

source ~/.zshrc