Personal bashrc and bash_profile for Terminal on Mac

.bash_profile

#!/bin/bash
#
# echo "Loading ${HOME}/.bash_profile"
#source ~/.profile # get my PATH setup
source ~/.bashrc  # get my Bash aliases

.bashrc

# Bash
parse_git_branch() {
  git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}
# source: http://unix.stackexchange.com/questions/16120/in-bash-how-can-i-change-the-color-of-my-command-prompt
# colour codes: http://unix.stackexchange.com/questions/269077/tput-setaf-color-table-how-to-determine-color-codes
  red=$(tput setaf 1)
  green=$(tput setaf 2)
  yellow=$(tput setaf 3)
  blue=$(tput setaf 4)
  reset=$(tput sgr0)
  PS1='\[$red\]\u\[$reset\]@\[$green\]\h\[$reset\]:\[$blue\]\w\[$reset\]\[$yellow\]$(parse_git_branch)\[$reset\]\$ '

# Add a new line after each command output
PROMPT_COMMAND="echo"

# Ability to echo bold words
bold=$(tput bold)
normal=$(tput sgr0)

# Alias
alias ls="ls -GCF" #G for colour, C for columns, F to display a / after directories
alias clear='printf "\033c"' # Remove all the terminal output
alias purge='rm -rf ~/Library/Developer/Xcode/DerivedData' # Remove all the derived data from XCode
alias diff='git difftool'

# Functions
# Use like this: lazygit "My commit msg"
# Source: http://stackoverflow.com/questions/19595067/git-add-commit-and-push-commands-in-one
function lazygit() {
    #branchName=$(git name-rev --name-only HEAD) 
    # You can use like git commit -a -m "$branchName $1" 
    echo "${bold}${green}Adding all files${reset}${normal}" 
    git add .
    git commit -a -m "$1"
    git push
}

# Use like this: lazydelete "Development"
function lazydelete() {
  git push origin --delete "$1"
  git branch -d "$1"
}

function lazyreload() {
  #ssh-add -l #List all agent keys
  ssh-add -D #Remove all agent keys
  ssh-add ~/.ssh/id_rsa
}

# To check all remote branches: git branch -r
# To checkout and track a remote branch: git checkout -t origin/develop
# To stop tracking a file that is currently cached: git rm --cached ProjectFolder.xcodeproj/project.xcworkspace/xcuserdata/myUserName.xcuserdatad/UserInterfaceState.xcuserstate and git commit -m "Removed file that shouldn't be tracked"

# To define FileMerge as the default diff and merge tool:
# Tell system when Xcode utilities live:
# sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer
# Set "opendiff" as the default mergetool globally:
# git config --global merge.tool opendiff
# git config --global diff.tool opendiff

ssh config

# Me
Host id_rsa
 HostName gitlab.com
 PreferredAuthentications publickey
 IdentityFile ~/.ssh/id_rsa
 UseKeychain yes
 AddKeysToAgent yes