#!/bin/bash

VCS_SUPPORTED="GIT, Subversion or Mercurial"

print_usage()
{
    echo "$(basename $0) -- status for version control (${VCS_SUPPORTED})."
    echo "Usage: $(basename $0) [OPTIONS...]"
}

if [ "x${1}" = "x--help" ]; then
    print_usage
    exit 1
fi

SVN_ST_UNKNOWN_COLOR=$(echo -e '\033[1;34m')  # Blue
SVN_ST_DELETED_COLOR=$(echo -e '\033[0;31m')  # Red
SVN_ST_MISSING_COLOR=$(echo -e '\033[1;31m')  # Red
SVN_ST_ADDED_COLOR=$(echo -e '\033[1;32m')    # Green
SVN_ST_MODIFIED_COLOR=$(echo -e '\033[1;33m') # Yellow
NORMAL=$(echo -e '\033[0m')

if git diff 1> /dev/null 2>&1; then
    git status "$@"
elif svn diff 1> /dev/null 2>&1; then
    svn status --ignore-externals "$@" | grep -v "^X" | \
        sed -e "s/^\?.*$/${SVN_ST_UNKNOWN_COLOR}\0${NORMAL}/" \
        -e "s/^!.*$/${SVN_ST_MISSING_COLOR}\0${NORMAL}/" \
        -e "s/^A.*$/${SVN_ST_ADDED_COLOR}\0${NORMAL}/" \
        -e "s/^M.*$/${SVN_ST_MODIFIED_COLOR}\0${NORMAL}/" \
        -e "s/^D.*$/${SVN_ST_DELETED_COLOR}\0${NORMAL}/"
elif hg status 1> /dev/null 2>&1; then
    hg status "$@"
else
    echo "Not a ${VCS_SUPPORTED} repository"
    exit 1
fi