added bashrc and bash_logout support system-wide

Change-Id: I6e4f7ee4fbc2110f0b2e756b214f29a3e7a4758b

config-top.h

@@ -91,10 +91,10 @@
 #define DEFAULT_BASHRC "~/.bashrc"
 
 /* System-wide .bashrc file for interactive shells. */
-#define SYS_BASHRC "/system/etc/.bashrc"
+#define SYS_BASHRC "/system/etc/bash/bashrc"
 
 /* System-wide .bash_logout for login shells. */
-/* #define SYS_BASH_LOGOUT "/etc/bash.bash_logout" */
+#define SYS_BASH_LOGOUT "/system/etc/bash/bash_logout"
 
 /* Define this to make non-interactive shells begun with argv[0][0] == '-'
    run the startup files when not in posix mode. */

etc/bash_logout

@@ -0,0 +1 @@
+clear

etc/bashrc

@@ -0,0 +1,93 @@
+# /etc/bash/bashrc
+#
+# This file is sourced by all *interactive* bash shells on startup,
+# including some apparently interactive shells such as scp and rcp
+# that can't tolerate any output.  So make sure this doesn't display
+# anything or bad things will happen !
+
+
+# Test for an interactive shell.  There is no need to set anything
+# past this point for scp and rcp, and it's important to refrain from
+# outputting anything in those cases.
+if [[ $- != *i* ]] ; then
+	# Shell is non-interactive.  Be done now!
+	return
+fi
+
+# Bash won't get SIGWINCH if another process is in the foreground.
+# Enable checkwinsize so that bash will check the terminal size when
+# it regains control.  #65623
+# http://cnswww.cns.cwru.edu/~chet/bash/FAQ (E11)
+shopt -s checkwinsize
+
+# Enable history appending instead of overwriting.  #139609
+shopt -s histappend
+
+# Change the window title of X terminals 
+case ${TERM} in
+	screen)
+		PROMPT_COMMAND='echo -ne "\033_${USER}@${HOSTNAME%%.*}:${PWD/$HOME/~}\033\\"'
+		;;
+esac
+
+# Set up a ton of aliases to cover toolbox with the nice busybox
+# equivalents of its commands
+alias cat='busybox cat'
+alias ln='busybox ln'
+alias ls='busybox ls'
+alias mount='busybox mount'
+alias rm='busybox rm'
+alias umount='busybox umount'
+alias df='busybox df'
+alias chmod='busybox chmod'
+alias chown='busybox chown'
+alias mv='busybox mv'
+alias mkdir='busybox mkdir'
+alias rmdir='busybox rmdir'
+alias insmod='busybox insmod'
+alias rmmod='busybox rmmod'
+alias lsmod='busybox lsmod'
+
+use_color=false
+
+# Set colorful PS1 only on colorful terminals.
+# dircolors --print-database uses its own built-in database
+# instead of using /etc/DIR_COLORS.  Try to use the external file
+# first to take advantage of user additions.  Use internal bash
+# globbing instead of external grep binary.
+safe_term=${TERM//[^[:alnum:]]/?}   # sanitize TERM
+match_lhs=""
+[[ -f /system/etc/DIR_COLORS ]] && match_lhs="${match_lhs}$(</system/etc/DIR_COLORS)"
+[[ -z ${match_lhs}    ]] \
+	&& type -P dircolors >/dev/null \
+	&& match_lhs=$(dircolors --print-database)
+[[ $'\n'${match_lhs} == *$'\n'"TERM "${safe_term}* ]] && use_color=true
+
+if ${use_color} ; then
+	# Enable colors for ls, etc.  Prefer ~/.dir_colors #64489
+	if type -P dircolors >/dev/null ; then
+		if [[ -f ~/.dir_colors ]] ; then
+			eval $(dircolors -b ~/.dir_colors)
+		elif [[ -f /etc/DIR_COLORS ]] ; then
+			eval $(dircolors -b /etc/DIR_COLORS)
+		fi
+	fi
+
+	if [[ ${EUID} == 0 ]] ; then
+		PS1='\[\033[01;31m\]\h\[\033[01;34m\] \W \$\[\033[00m\] '
+	else
+		PS1='\[\033[01;32m\]\u@\h\[\033[01;34m\] \w \$\[\033[00m\] '
+	fi
+
+	alias ls='busybox ls --color=auto'
+else
+	if [[ ${EUID} == 0 ]] ; then
+		# show root@ when we don't have colors
+		PS1='\u@\h \W \$ '
+	else
+		PS1='\u@\h \w \$ '
+	fi
+fi
+
+# Try to keep environment pollution down, EPA loves us.
+unset use_color safe_term match_lhs