re-add pyenv, rbenv, and nvm (lazy-loaded b/c it's PAINFULLY SLOW)

Brewfile

@@ -104,6 +104,7 @@ brew "heroku"
 brew "heroku-node"
 brew "hhvm"
 brew "htop"
+brew "httpie"
 brew "httrack"
 brew "hub"
 brew "hugo"
@@ -137,6 +138,7 @@ brew "pngcrush"
 brew "postgresql"
 brew "python"
 brew "python@2"
+brew "pyenv"
 brew "ruby"
 brew "ruby-build"
 brew "rbenv"

zsh/functions.zsh

@@ -46,7 +46,7 @@ unshort() {
 }
 
 # Create a custom git.io short URL (if available)
-# ex: gitio dotfiles https://github.com/jakejarvis/dotfiles => https://git.io/dotfiles
+# ex: gitio jakesdotfiles https://github.com/jakejarvis/dotfiles => https://git.io/jakesdotfiles
 gitio() {
   if [ -z "${1}" ] || [ -z "${2}" ]; then
     echo "Usage: \`gitio slug url\`"

zsh/path.zsh

@@ -16,10 +16,26 @@ export PATH="/opt/metasploit-framework/bin:$PATH"
 # curl
 export PATH="/usr/local/opt/curl/bin:$PATH"
 
+# Rust/Cargo
+export PATH="$HOME/.cargo/bin:$PATH"
 
 
 # ----- Third-party additions below: -----
 
+# pyenv
+eval "$(pyenv init -)"
+
+# rbenv
+eval "$(rbenv init -)"
+
+# nvm
+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
+# This is SOOOOOOOO SLOW.... lazy-load nvm instead with `usenvm`:
+alias usenvm='[ -s "/usr/local/opt/nvm/nvm.sh" ] && . "/usr/local/opt/nvm/nvm.sh"; [ -s "/usr/local/opt/nvm/etc/bash_completion" ] && . "/usr/local/opt/nvm/etc/bash_completion"'
+
+
 # The next line updates PATH for the Google Cloud SDK.
 if [ -f '/Users/jake/google-cloud-sdk/path.zsh.inc' ]; then . '/Users/jake/google-cloud-sdk/path.zsh.inc'; fi