#!/bin/bash

source vars.sh

mkdir /etc/skel

echo "Setting up a base /etc/profile"

cat > /etc/profile << "EOF"
# Begin /etc/profile
# Written for Beyond Linux From Scratch
# by James Robertson <jameswrobertson@earthlink.net>
# modifications by Dagmar d'Surreal <rivyqntzne@pbzpnfg.arg>

# System wide environment variables and startup programs.

# System wide aliases and functions should go in /etc/bashrc.  Personal
# environment variables and startup programs should go into
# ~/.bash_profile.  Personal aliases and functions should go into
# ~/.bashrc.

# Functions to help us manage paths.  Second argument is the name of the
# path variable to be modified (default: PATH)
pathremove () {
        local IFS=':'
        local NEWPATH
        local DIR
        local PATHVARIABLE=${2:-PATH}
        for DIR in ${!PATHVARIABLE} ; do
                if [ "$DIR" != "$1" ] ; then
                  NEWPATH=${NEWPATH:+$NEWPATH:}$DIR
                fi
        done
        export $PATHVARIABLE="$NEWPATH"
}

pathprepend () {
        pathremove $1 $2
        local PATHVARIABLE=${2:-PATH}
        export $PATHVARIABLE="$1${!PATHVARIABLE:+:${!PATHVARIABLE}}"
}

pathappend () {
        pathremove $1 $2
        local PATHVARIABLE=${2:-PATH}
        export $PATHVARIABLE="${!PATHVARIABLE:+${!PATHVARIABLE}:}$1"
}

export -f pathremove pathprepend pathappend

# Set the initial path
export PATH=/usr/bin

# Attempt to provide backward compatibility with LFS earlier than 11
if [ ! -L /bin ]; then
        pathappend /bin
fi

if [ $EUID -eq 0 ] ; then
        pathappend /usr/sbin
        if [ ! -L /sbin ]; then
                pathappend /sbin
        fi
        unset HISTFILE
fi

# Set up some environment variables.
export HISTSIZE=1000
export HISTIGNORE="&:[bf]g:exit"

# Set some defaults for graphical systems
export XDG_DATA_DIRS=${XDG_DATA_DIRS:-/usr/share/}
export XDG_CONFIG_DIRS=${XDG_CONFIG_DIRS:-/etc/xdg/}
export XDG_RUNTIME_DIR=${XDG_RUNTIME_DIR:-/tmp/xdg-$USER}

# Set up a red prompt for root and a green one for users.
NORMAL="\[\e[0m\]"
RED="\[\e[1;31m\]"
GREEN="\[\e[1;32m\]"
if [[ $EUID == 0 ]] ; then
  PS1="$RED\u [ $NORMAL\w$RED ]# $NORMAL"
else
  PS1="$GREEN\u [ $NORMAL\w$GREEN ]\$ $NORMAL"
fi

for script in /etc/profile.d/*.sh ; do
        if [ -r $script ] ; then
                . $script
        fi
done

unset script RED GREEN NORMAL

# End /etc/profile
EOF

echo "Creating the /etc/profile.d directory for individual initialization scripts"

install --directory --mode=0755 --owner=root --group=root /etc/profile.d

echo "Installing /etc/profile.d/bash_completion.sh to allow TAB command line completion"

cat > /etc/profile.d/bash_completion.sh << "EOF"
# Begin /etc/profile.d/bash_completion.sh
# Import bash completion scripts

# If the bash-completion package is installed, use its configuration instead
if [ -f /usr/share/bash-completion/bash_completion ]; then

  # Check for interactive bash and that we haven't already been sourced.
  if [ -n "${BASH_VERSION-}" -a -n "${PS1-}" -a -z "${BASH_COMPLETION_VERSINFO-}" ]; then

    # Check for recent enough version of bash.
    if [ ${BASH_VERSINFO[0]} -gt 4 ] || \
       [ ${BASH_VERSINFO[0]} -eq 4 -a ${BASH_VERSINFO[1]} -ge 1 ]; then
       [ -r "${XDG_CONFIG_HOME:-$HOME/.config}/bash_completion" ] && \
            . "${XDG_CONFIG_HOME:-$HOME/.config}/bash_completion"
       if shopt -q progcomp && [ -r /usr/share/bash-completion/bash_completion ]; then
          # Source completion code.
          . /usr/share/bash-completion/bash_completion
       fi
    fi
  fi

else

  # bash-completions are not installed, use only bash completion directory
  if shopt -q progcomp; then
    for script in /etc/bash_completion.d/* ; do
      if [ -r $script ] ; then
        . $script
      fi
    done
  fi
fi

# End /etc/profile.d/bash_completion.sh
EOF

echo "Installing the required directory"

install --directory --mode=0755 --owner=root --group=root /etc/bash_completion.d

echo "Installing /etc/profile.d/dircolors.sh for files to control the colors of file names in a directory listing"

cat > /etc/profile.d/dircolors.sh << "EOF"
# Setup for /bin/ls and /bin/grep to support color, the alias is in /etc/bashrc.
if [ -f "/etc/dircolors" ] ; then
        eval $(dircolors -b /etc/dircolors)
fi

if [ -f "$HOME/.dircolors" ] ; then
        eval $(dircolors -b $HOME/.dircolors)
fi

alias ls='ls --color=auto'
alias grep='grep --color=auto'
EOF

echo "Installing /etc/profile.d/extrapaths.sh which adds some useful paths to the PATH and can be used to customize other PATH related environment variables"

cat > /etc/profile.d/extrapaths.sh << "EOF"
if [ -d /usr/local/lib/pkgconfig ] ; then
        pathappend /usr/local/lib/pkgconfig PKG_CONFIG_PATH
fi
if [ -d /usr/local/bin ]; then
        pathprepend /usr/local/bin
fi
if [ -d /usr/local/sbin -a $EUID -eq 0 ]; then
        pathprepend /usr/local/sbin
fi

if [ -d /usr/local/share ]; then
        pathprepend /usr/local/share XDG_DATA_DIRS
fi

# Set some defaults before other applications add to these paths.
pathappend /usr/share/man  MANPATH
pathappend /usr/share/info INFOPATH
EOF

echo "Installing /etc/profile.d/readline.sh which allows users to define individual settings"

cat > /etc/profile.d/readline.sh << "EOF"
# Set up the INPUTRC environment variable.
if [ -z "$INPUTRC" -a ! -f "$HOME/.inputrc" ] ; then
        INPUTRC=/etc/inputrc
fi
export INPUTRC
EOF

echo "Installing /etc/profile.d/umask.sh which turns off default group write permissions for system users and when the user name and group name are not the same"

cat > /etc/profile.d/umask.sh << "EOF"
# By default, the umask should be set.
if [ "$(id -gn)" = "$(id -un)" -a $EUID -gt 99 ] ; then
  umask 002
else
  umask 022
fi
EOF

echo "Installing /etc/profile.d/i18n.sh which sets an environment variable necessary for native language support"

cat > /etc/profile.d/i18n.sh << "EOF"
# Set up i18n variables
. /etc/locale.conf
export LANG
EOF

echo "Installing a base /etc/bashrc"

cat > /etc/bashrc << "EOF"
# Begin /etc/bashrc
# Written for Beyond Linux From Scratch
# by James Robertson <jameswrobertson@earthlink.net>
# updated by Bruce Dubbs <bdubbs@linuxfromscratch.org>

# System wide aliases and functions.

# System wide environment variables and startup programs should go into
# /etc/profile.  Personal environment variables and startup programs
# should go into ~/.bash_profile.  Personal aliases and functions should
# go into ~/.bashrc

# Provides colored /bin/ls and /bin/grep commands.  Used in conjunction
# with code in /etc/profile.

alias ls='ls --color=auto'
alias grep='grep --color=auto'

# Provides prompt for non-login shells, specifically shells started
# in the X environment. [Review the LFS archive thread titled
# PS1 Environment Variable for a great case study behind this script
# addendum.]

NORMAL="\[\e[0m\]"
RED="\[\e[1;31m\]"
GREEN="\[\e[1;32m\]"
if [[ $EUID == 0 ]] ; then
  PS1="$RED\u [ $NORMAL\w$RED ]# $NORMAL"
else
  PS1="$GREEN\u [ $NORMAL\w$GREEN ]\$ $NORMAL"
fi

unset RED GREEN NORMAL

# End /etc/bashrc
EOF

echo "Installing .bash_profile for the current user and as template for new users"

cat > ~/.bash_profile << "EOF"
# Begin ~/.bash_profile
# Written for Beyond Linux From Scratch
# by James Robertson <jameswrobertson@earthlink.net>
# updated by Bruce Dubbs <bdubbs@linuxfromscratch.org>

# Personal environment variables and startup programs.

# Personal aliases and functions should go in ~/.bashrc.  System wide
# environment variables and startup programs are in /etc/profile.
# System wide aliases and functions are in /etc/bashrc.

if [ -f "$HOME/.bashrc" ] ; then
  source $HOME/.bashrc
fi

if [ -d "$HOME/bin" ] ; then
  pathprepend $HOME/bin
fi

# Having . in the PATH is dangerous
#if [ $EUID -gt 99 ]; then
#  pathappend .
#fi

# End ~/.bash_profile
EOF

cat > /etc/skel/.bash_profile << "EOF"
# Begin ~/.bash_profile
# Written for Beyond Linux From Scratch
# by James Robertson <jameswrobertson@earthlink.net>
# updated by Bruce Dubbs <bdubbs@linuxfromscratch.org>

# Personal environment variables and startup programs.

# Personal aliases and functions should go in ~/.bashrc.  System wide
# environment variables and startup programs are in /etc/profile.
# System wide aliases and functions are in /etc/bashrc.

if [ -f "$HOME/.bashrc" ] ; then
  source $HOME/.bashrc
fi

if [ -d "$HOME/bin" ] ; then
  pathprepend $HOME/bin
fi

# Having . in the PATH is dangerous
#if [ $EUID -gt 99 ]; then
#  pathappend .
#fi

# End ~/.bash_profile
EOF

echo "Installing .profile for the current user and as template for new users"

cat > ~/.profile << "EOF"
# Begin ~/.profile
# Personal environment variables and startup programs.

if [ -d "$HOME/bin" ] ; then
  pathprepend $HOME/bin
fi

# Set up user specific i18n variables
#export LANG=<ll>_<CC>.<charmap><@modifiers>
export LANG=LFS_LOCALE

# End ~/.profile
EOF

sed -i s"/LFS_LOCALE/$LOCALE"/g ~/.profile

cat > /etc/skel/.profile << "EOF"
# Begin ~/.profile
# Personal environment variables and startup programs.

if [ -d "$HOME/bin" ] ; then
  pathprepend $HOME/bin
fi

# Set up user specific i18n variables
#export LANG=<ll>_<CC>.<charmap><@modifiers>
export LANG=LFS_LOCALE

# End ~/.profile
EOF

sed -i s"/LFS_LOCALE/$LOCALE"/g /etc/skel/.profile

echo "Installing .bashrc for the current user and as template for new users"

cat > ~/.bashrc << "EOF"
# Begin ~/.bashrc
# Written for Beyond Linux From Scratch
# by James Robertson <jameswrobertson@earthlink.net>

# Personal aliases and functions.

# Personal environment variables and startup programs should go in
# ~/.bash_profile.  System wide environment variables and startup
# programs are in /etc/profile.  System wide aliases and functions are
# in /etc/bashrc.

if [ -f "/etc/bashrc" ] ; then
  source /etc/bashrc
fi

# Set up user specific i18n variables
#export LANG=<ll>_<CC>.<charmap><@modifiers>
export LANG=LFS_LOCALE

# End ~/.bashrc
EOF

sed -i s"/LFS_LOCALE/$LOCALE"/g ~/.bashrc

cat > /etc/skel/.bashrc << "EOF"
# Begin ~/.bashrc
# Written for Beyond Linux From Scratch
# by James Robertson <jameswrobertson@earthlink.net>

# Personal aliases and functions.

# Personal environment variables and startup programs should go in
# ~/.bash_profile.  System wide environment variables and startup
# programs are in /etc/profile.  System wide aliases and functions are
# in /etc/bashrc.

if [ -f "/etc/bashrc" ] ; then
  source /etc/bashrc
fi

# Set up user specific i18n variables
#export LANG=<ll>_<CC>.<charmap><@modifiers>
export LANG=LFS_LOCALE

# End ~/.bashrc
EOF

sed -i s"/LFS_LOCALE/$LOCALE"/g /etc/skel/.bashrc

echo "Installing .bash_logout for the current user and as template for new users"

cat > ~/.bash_logout << "EOF"
# Begin ~/.bash_logout
# Written for Beyond Linux From Scratch
# by James Robertson <jameswrobertson@earthlink.net>

# Personal items to perform on logout.

# End ~/.bash_logout
EOF

cat > /etc/skel/.bash_logout << "EOF"
# Begin ~/.bash_logout
# Written for Beyond Linux From Scratch
# by James Robertson <jameswrobertson@earthlink.net>

# Personal items to perform on logout.

# End ~/.bash_logout
EOF

echo "Installing a configuration for the dircolors capability"

dircolors -p > /etc/dircolors