/nicer_ps1.sh
Created Dec 19, 2011
A nicer PS1
| # A More Awesome PS1 | |
| # - only show username if its not the usual one | |
| # - only show hostname if its not my local box (checks SSH_CONNECTION) | |
| # - show root username in red | |
| # - show current path, and smart truncate longer ones (>35 chars) | |
| # - show git branch in brackets | |
| # - show a red star for uncommitted git changes | |
| # - show local hostname in green (192.*,10.*,::1) | |
| # - show other hostnames in white | |
| # - use nice colors overall | |
| # Define Colors | |
| txtblk="\e[0;30m" # Black - Regular | |
| txtred="\e[0;31m" # Red | |
| txtgrn="\e[0;32m" # Green | |
| txtylw="\e[0;33m" # Yellow | |
| txtblu="\e[0;34m" # Blue | |
| txtpur="\e[0;35m" # Purple | |
| txtcyn="\e[0;36m" # Cyan | |
| txtwht="\e[0;37m" # White | |
| bldblk="\e[1;30m" # Black - Bold | |
| bldred="\e[1;31m" # Red | |
| bldgrn="\e[1;32m" # Green | |
| bldylw="\e[1;33m" # Yellow | |
| bldblu="\e[1;34m" # Blue | |
| bldpur="\e[1;35m" # Purple | |
| bldcyn="\e[1;36m" # Cyan | |
| bldwht="\e[1;37m" # White | |
| unkblk="\e[4;30m" # Black - Underline | |
| undred="\e[4;31m" # Red | |
| undgrn="\e[4;32m" # Green | |
| undylw="\e[4;33m" # Yellow | |
| undblu="\e[4;34m" # Blue | |
| undpur="\e[4;35m" # Purple | |
| undcyn="\e[4;36m" # Cyan | |
| undwht="\e[4;37m" # White | |
| bakblk="\e[40m" # Black - Background | |
| bakred="\e[41m" # Red | |
| badgrn="\e[42m" # Green | |
| bakylw="\e[43m" # Yellow | |
| bakblu="\e[44m" # Blue | |
| bakpur="\e[45m" # Purple | |
| bakcyn="\e[46m" # Cyan | |
| bakwht="\e[47m" # White | |
| txtrst="\e[0m" # Text Reset | |
| # test for local hostname preference | |
| if test -z "$SERVERNAME"; then | |
| SERVERNAME=`hostname -s` | |
| fi | |
| parse_git_branch() { | |
| # get current branch name | |
| git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/[\1]/' -e 's/ *//' | |
| } | |
| parse_git_status(){ | |
| # show * when there are uncommited changes | |
| git st -s 2>/dev/null|wc -l|sed -e 's/0//' -e 's/[0-9][0-9]*/*/' -e 's/ *//' | |
| } | |
| parse_user(){ | |
| # only display username if it's different than my usual one | |
| if [[ -z $DEFAULT_USERNAME && $USER != $DEFAULT_USERNAME ]]; then echo -n $USER; fi | |
| } | |
| user_color(){ | |
| if [ $USER = 'root' ]; then echo "$txtred"; else echo "$txtylw"; fi | |
| } | |
| parse_host(){ | |
| # only display hostname if on a remote box via ssh | |
| if [ -n "$SSH_CONNECTION" ]; then echo -n "$SERVERNAME"; fi | |
| } | |
| host_color(){ | |
| if [[ $SSH_CLIENT =~ ^(192\.168\.|\:\:1 |10\.) ]]; then echo "$txtgrn"; else echo "$txtwht"; fi | |
| } | |
| parse_pwd(){ | |
| # 1) replace $HOME with ~ | |
| # 2) replace ~/Sites with // | |
| # 3) truncate paths using two methods: | |
| # - split on '/', or | |
| # - use first/last chars | |
| # ...and use whatever ends up being shortest | |
| ruby -e 'd=ENV["PWD"].gsub(%r{^#{ENV["HOME"]}},"~").gsub(%r{^~/Sites/},"//").gsub(%r{^/var/www/vhosts/},"//");p1=d[0,25]+"…"+d[-15,15].to_s;a=d.split("/");p2=a.first(4)+["…"]+a.last(2);p2=p2.join("/");puts (d.size>[p1.size,p2.size].min)?((p1.size<p2.size)?p1:p2):d' | |
| } | |
| # set term title bar without colors or git branch | |
| if [ "$TERM" = "xterm-color" -o "$TERM" = "xterm" ]; then | |
| TITLE_BAR="\[\e]1;\$(parse_user)@\$(parse_host) \$(parse_pwd)\[\a\]" | |
| fi | |
| # set PS1 with everything | |
| export PS1=$"$TITLE_BAR\[$(user_color)\]$(parse_user)\[$bldgrn\]@\[$(host_color)\]$(parse_host) \[$undpur\]\$(parse_pwd)\[$txtrst\]\[$bldblk\]\$(parse_git_branch)\[$bldred\]\$(parse_git_status)\[$txtrst\] \$ " |
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