Installs Snakegit

install_snakegit.sh

#!/usr/bin/env bash 

# Welcome message
cat <<EOM
 ____              _         ____ _ _
/ ___| _ __   __ _| | _____ / ___(_) |_
\___ \| '_ \ / _' | |/ / _ \ |  _| | __|
 ___) | | | | (_| |   <  __/ |_| | | |_ 
|____/|_| |_|\__,_|_|\_\___|\____|_|\__|

EOM
echo "This installer configures your development environment"
echo "to work with the SnakeGit set of tools.  SnakeGit "
echo "integrates standard development and build workflows "
echo "with git for a (hopefully) more consistent development"
echo "experience." 
echo ""
echo "Would you like to continue with installing [y] ?"

read INSTALL

if [ "$INSTALL" == "n" ] || [ "$INSTALL" == "N" ]
then
	echo "Sorry to hear it"
	exit
fi

# getopt on OS X is inherently broken.  We might end up with unexpected 
# behavior if it is used.  This will give people the chance to install
# homebrew and then install a good getopt.  This also affects gitflow

unamestr=`uname`

function configure_os_x {
which brew
if [[ $? -ne 0 ]]
then
	echo "Some bash features do not work nicely with OS X"
	echo "To fix this, we can install Homebrew (http://mxcl.github.com/homebrew)"
	echo "Homebrew is a package manager similar to apt-get or yum"
	echo "It can make lots of tasks a lot easier, in addition to"
	echo "fixing the issues here."
	echo ""
	echo "Would you like to install brew now (recommended) [y] ?"
	read INSTALL_BREW
	if [ "$INSTALL_BREW" == "Y" ] || [ "$INSTALL_BREW" == "y" ] || [ "$INSTALL_BREW" == "" ]
	then
		ruby <(curl -fsSkL raw.github.com/mxcl/homebrew/go)
		brew install gnu-getopt
		echo 'export FLAGS_GETOPT_CMD="$(brew --prefix gnu-getopt)/bin/getopt"' >> ~/.bashrc
		echo "To make sure that you pick up the changes made here"
		echo "Please reload your ~/.bashrc file:"
		echo ". ~/.bashrc"
	fi
fi

}

if [[ "$unamestr" == 'darwin' ]]
then
	configure_os_x
fi

#Now that that is taken care of, install snakegit
test -v SNAKEGIT_HOME || SNAKEGIT_HOME=${HOME}/.snakegit
echo "Where do you want to install SnakeGit [$SNAKEGIT_HOME] ?"
read LOCATION
if [ "$LOCATION" != "" ]
then
	SNAKEGIT_HOME=$LOCATION
fi

echo "Configuring SnakeGit home in ${HOME}/.bashrc"
echo ""
grep SNAKEGIT_HOME ~/.bashrc
test $? -eq 0 || echo "export SNAKEGIT_HOME=$SNAKEGIT_HOME" >> ${HOME}/.bashrc

if [ -d $SNAKEGIT_HOME ]
then
	cd $SNAKEGIT_HOME
	echo "Updating your SnakeGit install"
	echo ""
	git pull origin master >> $SNAKEGIT_HOME/install.log 2>&1 
	git submodule update >> $SNAKEGIT_HOME/install.log 2>&1
else
  echo "Installing SnakeGit"
	echo ""
	git clone https://github.com/NarrativeScience/snakegit.git $SNAKEGIT_HOME >> $SNAKEGIT_HOME/install.log 2>&1
	cd $SNAKEGIT_HOME
	git submodule init >> $SNAKEGIT_HOME/install.log 2>&1
	git submodule update >> $SNAKEGIT_HOME/install.log 2>&1
fi

# Configure PyPi username
current_username=`git config --global --get pypi.user`
echo "Please enter your PyPi username: [$current_username]"
read USERNAME
if [ -v current_username ]
then
	if [ ! "$USERNAME" == '' ] && [ "$USERNAME" != "$current_username" ]
	then	
			git config --global	--unset pypi.user
			git config --global --add pypi.user $USERNAME
	fi
fi

# Install git aliases
echo "Now installing git aliases"
echo ""
git config --get alias.build > /dev/null
if [ $? -ne 0 ]
then
	git config --global --add alias.build "! /usr/bin/env bash $SNAKEGIT_HOME/bin/build.sh"
fi

git config --get alias.upload-package > /dev/null
if [ $? -ne 0 ]
then
	git config --global --add alias.upload-package "! /usr/bin/env bash $SNAKEGIT_HOME/bin/upload.sh"
fi

git config --get alias.test > /dev/null
if [ $? -ne 0 ]
then
	git config --global --add alias.test "! /usr/bin/env bash $SNAKEGIT_HOME/bin/test.sh"
fi

git config --get alias.lint > /dev/null
if [ $? -ne 0 ]
then
	git config --global --add alias.lint "! /usr/bin/env bash $SNAKEGIT_HOME/bin/lint.sh"
fi

git config --get alias.sdist > /dev/null
if [ $? -ne 0 ]
then
	git config --global --add alias.sdist "! /usr/bin/env bash $SNAKEGIT_HOME/bin/sdist.sh"
fi

git config --get alias.dev-clean > /dev/null
if [ $? -ne 0 ]
then
	git config --global --add alias.dev-clean "! /usr/bin/env bash $SNAKEGIT_HOME/bin/clean.sh"
fi

git config --get alias.selfupdate > /dev/null
if [ $? -ne 0 ]
then
	git config --global --add alias.selfupdate "! /usr/bin/env bash $SNAKEGIT_HOME/bin/selfupdate"
fi