Show svn info in your bash prompt

gistfile1.sh

# Returns (svn:<revision>:<branch|tag>[*]) if applicable
svn_prompt() {
    if [ -d ".svn" ] ; then
        local branch dirty rev info=$(svn info 2>/dev/null)
        
        branch=$(svn_parse_branch "${info}")
        
        # Uncomment if you want to display the current revision.
        #rev=$(echo "${info}" | awk '/^Revision: [0-9]+/{print $2}')
        
        # Uncomment if you want to display whether the repo is 'dirty.' In some
        # cases (on large repos) this may take a few seconds, which can
        # noticeably delay your prompt after a command executes.
        #[ "$(svn status)" ] && dirty='*'
        
        if [ "$branch" != "" ] ; then
            echo "(svn:${rev}:${branch}${dirty})"
        fi
    fi
}

# Returns the current branch or tag name from the given `svn info` output
svn_parse_branch() {
    local chunk url=$(echo "$1" | awk '/^URL: .*/{print $2}')
    
    echo ${url} | grep -q "/trunk\b"
    if [ $? -eq 0 ] ; then
        echo trunk
        return
    else
        # first check /branches/releases
        chunk=$(echo ${url} | grep -o "/releases.*")
        if [ "${chunk}" == "" ] ; then
            # then check for some other branch
            chunk=$(echo ${url} | grep -o "/branches.*")
            if [ "${chunk}" == "" ] ; then
                # last check for a tag
                chunk=$(echo ${url} | grep -o "/tags.*")
            fi
        fi
    fi
    
    echo ${chunk} | awk -F/ '{print $3}'
}

export PS1="\w$(svn_prompt)>"