Mac OS X - Install Git Completion

install-git-completion.sh

URL_COMP="https://raw.githubusercontent.com/git/git/master/contrib/completion/git-completion.bash"
URL_PROMPT="https://raw.githubusercontent.com/git/git/master/contrib/completion/git-prompt.sh"

#PROFILE="$HOME/.profile"
PROFILE="$HOME/.bash_profile"
#PROFILE="$HOME/.bash_aliases"

echo "Downloading git-completion..."
if ! curl "$URL_COMP" --silent --output "$HOME/.git-completion.bash"; then
	echo "ERROR: Couldn't download completion script. Make sure you have a working internet connection." && exit 1
fi

echo "Downloading git-prompt..."
if ! curl "$URL_PROMPT" --silent --output "$HOME/.git-prompt.sh"; then
	echo "ERROR: Couldn't download prompt script. Make sure you have a working internet connection." && exit 1
fi

SOURCE_LINE="source ~/.git-completion.bash"

if [[ -f "$PROFILE" ]] && grep -q "$SOURCE_LINE" "$PROFILE"; then
	echo "Already added git-completion to bash profile."
else
	echo "Adding git-completion to bash profile..."
	echo "$SOURCE_LINE" >> "$PROFILE"
fi

SOURCE_LINE="source ~/.git-prompt.sh"

if [[ -f "$PROFILE" ]] && grep -q "$SOURCE_LINE" "$PROFILE"; then
	echo "Already added git-prompt to bash profile."
else
	echo "Adding git-prompt to bash profile..."
	echo "$SOURCE_LINE" >> "$PROFILE"
	echo << EOL
GIT_PS1_SHOWDIRTYSTATE=true
GIT_PS1_SHOWUPSTREAM=auto
GIT_PS1_SHOWUNTRACKEDFILES=true
GIT_PS1_SHOWSTASHSTATE=true
export PS1='\[\033[1;32m\]\u@\h\[\033[00m\]:\[\033[1;34m\]\w\[\033[1;31m\]$(__git_ps1)\[\033[00m\]\$ '
EOL
fi

echo "Reloading bash profile..."
source "$PROFILE"

echo
echo "Successfully installed."
echo "Git auto-completion should be all set!"