#! /bin/bash

#*******************************************************************************
# acsUserConfig
#
# "@(#) $Id: acsUserConfig,v 1.2 2013/02/08 09:35:50 eallaert Exp $"
#
# who       when      what
# --------  --------  ----------------------------------------------
# gchiozzi  2005-04-22 created
#

#*******************************************************************************
# ALMA - Atacama Large Millimeter Array
# Copyright (c) ESO - European Southern Observatory, 2014
# (in the framework of the ALMA collaboration).
# All rights reserved.
# 
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# 
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
# 
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
#*******************************************************************************


#************************************************************************
#   NAME
#   acsUserConfig - Copies basic account configuration files
# 
#   SYNOPSIS
# 
#   DESCRIPTION
#   This script copies the basic configuration files for an account
#   This includes emacs configurations.
#
#   FILES
#
#   ENVIRONMENT
#
#   RETURN VALUES
#
#   CAUTIONS
#
#   EXAMPLES
#
#   SEE ALSO
#
#   BUGS     
#
#   TODO
#   - For .Xdefaults and .xresources, if the file already 
#     exist check for the entries and append if they are not there
#     instead of creating a new file.
#     This would avoid loosing configurations done by the user
#     for other applications.
#   - Find a reasonable way to handle .bash_profile for
#     loading the .acs/.bash_profile.acs
#
#
#------------------------------------------------------------------------
#
# It could in principle be that this utility is run before other pieces of ACS
# (including the file acsstartupConstants) are installed ...
if [ -f acsstartupConstants ] ; then
    . acsstartupConstants
else
    EC_BADARGS=43      # command line arguments wrong or missing
fi

######################################
# Directories names and assumptions  #
######################################

# Assumes a standard ACS installation in /alma
# and a standard ACS environment configuration
# Uses gchiozzi CVS account and not almamgr
# Extracts from CVS the NO-LGPL heald

#
# These will contain the command line parsing results 
# (CL_XXX, CL = command line)
# or will keep the given default
#
CL_DRY_RUN=


###
### ----------- Command Line Parsing ---------------------

#
# These options can be recognized (longopts comma-separated. colon means argument is required)
#
LONGOPTS=help
SHORTOPTS=hn

#
# Usage info. Be nice and keep this up-to-date!
#
function printUsage {
   echo "Copies basic account configuration filesStarts a Nightly Build iteration"
   echo "Assumes a correct ACS environment configuration"
   echo ""
   echo "Usage: `basename $0` [OPTIONS]"
   echo "Options: "
   echo "   -h | -help          prints this help and exits"
   echo "   -n                  dry run"
   echo "Environment Variables:"
   echo "   ACSROOT - Minimal sanity check. Bails out if not set."
}

#
# Run getopt (posixly_correct needed). We run twice:
# First run is simply to check the commandline for correctness
# Second run is the real deal which replaces the command line args with getopt's output
export POSIXLY_CORRECT=1

getopt -n `basename $0` -u -a -l $LONGOPTS $SHORTOPTS "$@" || {
   printUsage
	exit $EC_BADARGS;
}

set -- `getopt -u -a -l $LONGOPTS $SHORTOPTS "$@"`

#
# Iterate over getopt's output and set CL_XXX variables accordingly
#
while : 
do
	case "$1" in
        -n)                  CL_DRY_RUN=true ;;
	--help)              CL_HELP=true ;; 
	-h)                  CL_HELP=true ;; 
	--) break ;;
	esac
	shift
done
shift

#
# must be unset! otherwise our custom export() function
# that is defined below doesn't get used by the shell
#
export POSIXLY_CORRECT=
unset POSIXLY_CORRECT


if [ "$CL_HELP" ] ; then
   printUsage
   exit $EC_OK
fi

#
# Set indirect variables, based on command line parameters
#

# Full name for the binary dostribution file
BIN_FILE=$CL_BIN_DIR/ACS_BIN.tar.gz

#
# (Note: Rest of command line now in $@ )
#
### ---------- End of Command Line Parsing -------------

################################
# Initial minimal sanity check #
################################

if [ X"$ACSROOT" = X ]
then
    echo "ERROR - ACSROOT undefined. Cannot continue!"
    exit -1
fi

echo ACSROOT: $ACSROOT

###############################
# If a dry run is requested, the list of options is printed
# and all commands become simply echo outputs.
#
if [ "$CL_DRY_RUN" ] ; then
   CMD_ECHO=echo

   $CMD_ECHO "======== DRY RUN ============="
   $CMD_ECHO "Setup for execution is:"
   $CMD_ECHO CL_DRY_RUN=$CL_DRY_RUN
   $CMD_ECHO ""
fi

#########################
# Let's go!
#


echo "===> Check and update ACS user account configuration"

#
# Go to the home directory
#
cd $HOME

######################################
# Check .acs directory               #
######################################

echo "     Check .acs directory"
if [  -r .acs ]
then
   echo "       .acs directory already exist"   
fi
$CMD_ECHO cp -ri $ACSROOT/config/.acs .   

######################################
# Check .emacs file                  #
######################################

echo "     Check .emacs file"
if [  -r .emacs ]
then
   echo "       .emacs file already exist"   
else
   echo "       .emacs file does not exist. Making a link from $HOME/.acs/emacs"
   $CMD_ECHO ln -s $HOME/.acs/emacs .emacs
fi

######################################
# Check .emacs.local file            #
######################################

echo "     Check .emacs file"
if [  -r .emacs.local ]
then
   echo "       .emacs.local file already exist"   
else
   echo "       .emacs.local file does not exist. Making a link from $HOME/.acs/emacs.local"
   $CMD_ECHO ln -s $HOME/.acs/emacs.local .emacs.local
fi

######################################
# Check .xresources file             #
######################################

echo "     Check .xresources file"
if [  -r .xresources ]
then
   echo "     .xresources file already exist"   
else
   echo "     .xresources file does not exist. Making a link from $HOME/.acs/xresources.emacs"
   $CMD_ECHO ln -s $HOME/.acs/xresources.emacs .xresources
fi

######################################
# Check .Xdefaults file              #
######################################

echo "     Check .emacs file"
if [  -r .Xdefaults ]
then
   echo "       .Xdefaults file already exist"   
else
   echo "       .Xdefaults file does not exist. Making a link from $HOME/.acs/xresources.emacs"
   $CMD_ECHO ln -s $HOME/.acs/xresources.emacs .Xdefaults
fi

echo "===> DONE"

# ___oOo___