[PATCH] base-files-4.0.9: Change prompt if running with admin rights

[Christian Franke <Christian dot Franke at t-online dot de>]

This is an updated version of:
http://cygwin.com/ml/cygwin/2011-04/msg00020.html
Uses the detection method suggested here:
http://cygwin.com/ml/cygwin/2011-04/msg00372.html

Tested with bash, dash, mksh, posh, and zsh (with symlink /etc/zprofile 
-> profile) on cygwin 1.7.11-1 and Win7 x64.

OT: posh -l does not execute /etc/profile by default. Bug?

Christian

diff -rup base-files-4.0-9.orig/etc/defaults/etc/bash.bashrc base-files-4.0-9/etc/defaults/etc/bash.bashrc
--- base-files-4.0-9.orig/etc/defaults/etc/bash.bashrc	2012-02-12 22:13:04.000000000 +0100
+++ base-files-4.0-9/etc/defaults/etc/bash.bashrc	2012-02-27 16:04:40.834657800 +0100
@@ -24,7 +24,7 @@
 [[ "$-" != *i* ]] && return
 
 # Set a default prompt of: user@host and current_directory
-PS1='\[\e]0;\w\a\]\n\[\e[32m\]\u@\h \[\e[33m\]\w\[\e[0m\]\n\$ '
+PS1='\[\e]0;\w\a\]\n\[\e[32m\]\u@\h \[\e[33m\]\w\[\e[0m\]\n'"${PS1a:-\\\$ }"
 
 # Uncomment to use the terminal colours set in DIR_COLORS
 # eval "$(dircolors -b /etc/DIR_COLORS)"
diff -rup base-files-4.0-9.orig/etc/defaults/etc/profile base-files-4.0-9/etc/defaults/etc/profile
--- base-files-4.0-9.orig/etc/defaults/etc/profile	2012-02-12 22:13:04.000000000 +0100
+++ base-files-4.0-9/etc/defaults/etc/profile	2012-02-27 16:07:51.212574600 +0100
@@ -100,6 +100,12 @@ else
   cd "${HOME}" || echo "WARNING: Failed attempt to cd into ${HOME}!"
 fi
 
+# Set PS1a if user has admin rights
+unset PS1a
+if [ -r /proc/registry/HKEY_LOCAL_MACHINE/SECURITY ]; then
+  PS1a="# "
+fi
+
 # Shell dependent settings
 profile_d ()
 {
@@ -116,19 +122,20 @@ if [ ! "x${BASH_VERSION}" = "x"  ]; then
 elif [ ! "x${KSH_VERSION}" = "x" ]; then
   typeset -l HOSTNAME="$(/usr/bin/hostname)"
   profile_d sh
-  PS1=$(print '\033]0;${PWD}\n\033[32m${USER}@${HOSTNAME} \033[33m${PWD/${HOME}/~}\033[0m\n$ ')
+  PS1=$(print '\033]0;${PWD}\n\033[32m${USER}@${HOSTNAME} \033[33m${PWD/${HOME}/~}\033[0m\n'"${PS1a:-\$ }")
 elif [ ! "x${ZSH_VERSION}" = "x" ]; then
   HOSTNAME="$(/usr/bin/hostname)"
   profile_d zsh
-  PS1='(%n@%m)[%h] %~ %% '
+  PS1='(%n@%m)[%h] %~ '"${PS1a:-%% }"
 elif [ ! "x${POSH_VERSION}" = "x" ]; then
   HOSTNAME="$(/usr/bin/hostname)"
-  PS1="$ "
+  PS1="${PS1a:-\$ }"
 else 
   HOSTNAME="$(/usr/bin/hostname)"
   profile_d sh
-  PS1="$ "
+  PS1="${PS1a:-\$ }"
 fi
+unset PS1a
 
 export PATH MANPATH INFOPATH USER TMP TEMP PRINTER HOSTNAME PS1 SHELL tmp temp
 

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