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add current svn branch to shell prompt
function parse_svn_branch {
if [ -d '.svn' ]; then
ref=$(svn info | grep URL | awk -F/ '{print $NF}' 2> /dev/null) || return
cur=$(pwd | awk -F/ '{print $NF}' 2> /dev/null) || return
if [ $ref != $cur ]; then
echo "#$ref"
export PS1="\u@\h:\w\[\e[31;40m\]\$(parse_svn_branch)\[\e[0m\] \$ "
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