Subversion blame history output script

blame.sh

#!/bin/bash
#######
#
# SVN Blame Writer
# Author: Mustafa Ashurex
# Description: Automatically outputs svn blame to a history file and/or screen for reading.
#
#######

function print_help {
    echo "usage: blame [filename | -h] [-n]"
    echo "-h : Print this menu"
    echo "-n : Do not write a history file"
}

if [ "$1" == "-h" ]; then
    print_help
    exit 0
fi

if [ ! -f "$1" ]; then
    print_help
    echo "ERROR: Not a valid file."
    exit 1;
fi

if [ $# -gt 1 ]; then
    if [ "$2" != "-n" ]; then
        svn blame $1 > $2
    else
        svn blame $1
    fi
elif [ $# -eq 1 ]; then
    svn blame $1 > "$1.history"
    cat "$1.history"
else
    print_help
    echo "ERROR: Must specify a file to review."
    exit 1
fi