#!/bin/sh
##############################################################################
#                           #   checkinstall 1.0   #                         #
#                           ########################                         #
#                                                                            #
#  Installs a compiled program from the program's source directory using     #
#  "make install" or any other command supplied on checkinstall's command    #
#  line. checkinstall will create a Slackware-compatible package named after #
#  the source directory's name and install it using's Slackware's package    #
#  administration utilities.                                                 #
#                                                                            #
#  This version of checkinstall needs enough free space on the partition     #
#  holding /tmp to write there a temporary copy of the package.              #
#                                                                            #
#  Copyright 2000 Felipe Eduardo Sanchez Diaz Duran                          #
#  This software is released under the GNU GPL,                              #
#  read the file COPYING for details.                                        #
#                                                                            #
##############################################################################
#
# 001118-BaP: v1.0-BaP by Kevin D. Knerr, Sr. <ld_barthel@yahoo.com>
#
# Summary of changes:
#    * Reorganized output statements to suit my personal tastes
#    * Incorporated more variables to simplify the script & ease maintenance
#    * Added ${} syntax to existing variables when concatenated w/ strings
#    * Created a simple function to handle Y/N inputs
#    * Added an option to let checkinstall create a basic set of package docs
#        based on commonly used doc names
#    * Reorganized some sections to improve program flow while reducing
#        some instances of duplication
#    * Didn't change version number, but appended -BaP to indicate that this
#        is essentially a forked version

echo "checkinstall 1.0-BaP, Copyright 2000 Felipe Eduardo Sanchez Diaz Duran"
echo "                       This is GNU software"
echo

#
# Variable initialization and other preparations
#

INSTALLWATCH=/usr/local/bin/installwatch

if [ ! -x $INSTALLWATCH ]; then
    echo "***** ABEND *****"
    echo "$INSTALLWATCH does not exist."
    echo
    echo "Please install installwatch or modify this script so that"
    echo "INSTALLWATCH is set to the correct pathname before attempting"
    echo "to run checkinstall again."
    exit 1
fi

# 001117-BaP: We can make some things easier on ourselves if we *don't*
#   include the package suffix--which I changed to pkg for aesthetic reasons.
DIRECTORIO_FUENTE=`pwd`
PKG_BASENAME=`basename $DIRECTORIO_FUENTE`
NOMBRE_DEL_PAQUETE=${PKG_BASENAME}-pkg.tgz
PKG_DOC_DIR=doc-pak

# 001117-BaP: Use a simpler syntax to set INSTALLCMD
INSTALLCMD=${1:-'make install'}

# 001117-BaP: Define a function or two
function yorn {
    read YN
    YN=`echo $YN | tr 'a-z' 'A-Z'`
}    


# Ensure that our directories exist
if ! [ -d /tmp/package ]; then
    echo "Creating directory /tmp/package"
    mkdir /tmp/package             
fi

# 001117-BaP: We can create a default set of docs on the fly . . .
#   The list I've included should cover most packages adequately. If not,
#   then you should really create the package doc set *manually*
if ! [ -d $PKG_DOC_DIR ]; then
    echo "The package documentation directory ./${PKG_DOC_DIR} does not exist."
    echo -n "Should I create a default set of package docs? [Y/N] "
    yorn
    if [ $YN = "Y" ]; then
        echo "Preparing package documentation . . ."
        mkdir $PKG_DOC_DIR
	for f in ABOUT ABOUT-NLS ANNOUNCE AUTHORS BUGS CHANGES CONFIGURATION COPYING COPYING.LIB COPYRIGHT CREDITS ChangeLog Changelog FAQ FEATURES FILES HACKING INSTALL KNOWN_BUGS LICENSE LSM MANIFEST NEWS README RELEASE RELNOTES THANKS TIPS TODO VERSION ; do
            if [ -f $f ]; then
                cp -a $f $PKG_DOC_DIR
            fi
	done
      else
	echo -n "Do you wish to continue without any package docs? [Y/N] "
        yorn
        if ! [ $YN = "Y" ]; then
            echo "Aborting installation."
            exit 1
	fi
    fi
fi
echo


#
# We run the program installation from the source directory       
#

echo "Installing with \"${INSTALLCMD}...\""

# 001117-BaP: Why go through the trouble of setting $INSTALLWATCH and
#   checking if it exists if we're then going to simply assume it's in
#   the path???
#installwatch -o /tmp/newfiles.tmp $INSTALLCMD &> /tmp/install.log
$INSTALLWATCH -o /tmp/newfiles.tmp $INSTALLCMD &> /tmp/install.log

# 001117-BaP: Let's eliminate some duplication here--and make it more friendly
#   to boot . . .
INSTALL_FAILED=$?
echo
if [ $INSTALL_FAILED -gt 0 ]; then 
    echo "                         ***** ABEND *****"
    echo "An error was encountered during installation. Installation aborted."
  else
    echo "Installation successful!"
fi
echo
echo -n "Do you wish to view the log file (/tmp/install.log) now? [Y/N] "
yorn
if [ $YN = "Y" ] ; then
    less /tmp/install.log
fi
if [ $INSTALL_FAILED -gt 0 ]; then
    exit $INSTALL_FAILED
fi    
echo 


#
# Remove garbage from the modified files list          
#

cat /tmp/newfiles.tmp | cut -f 3 | egrep -v '/dev|/tmp' | sort -u > /tmp/newfiles


#
# Copy the files to /tmp/package                             
#

echo "Copying package files to the temporary directory . . ."
cd /
for i in `cat /tmp/newfiles`; do 
    if ! [ -d $i ]; then 
        (tar cp $i| tar xvpC /tmp/package) &> /tmp/checkinstall.log
    fi
done

# Copy the documentation files, if they exist           
if [ -d ${DIRECTORIO_FUENTE}/$PKG_DOC_DIR ]; then
    mkdir -p /tmp/package/usr/doc/$PKG_BASENAME
    cd ${DIRECTORIO_FUENTE}/$PKG_DOC_DIR
    tar cp * | tar xvpC /tmp/package/usr/doc/$PKG_BASENAME &> /dev/null
fi

   
#
# Create packagee  (TODO: make this automatic)
#

echo "Creating the $PKG_BASENAME package . . ."
cd /tmp/package
/sbin/makepkg $NOMBRE_DEL_PAQUETE
mv $NOMBRE_DEL_PAQUETE $DIRECTORIO_FUENTE


#
# Install the package to register it in Slacware's installed packages list    
# so we can list it's contents with pkgtool or remove it with removepkg
#

echo "Installing new package: $NOMBRE_DEL_PAQUETE . . ."
/sbin/installpkg ${DIRECTORIO_FUENTE}/$NOMBRE_DEL_PAQUETE


#
# Remove trash from /tmp
#

echo 'Erasing temporary files . . .'
rm -rf /tmp/{newfiles*,package/*}

# Go back to where we started
cd $DIRECTORIO_FUENTE

echo "Done."
echo
echo "The new package has been installed and saved to:"
echo "   ${DIRECTORIO_FUENTE}/$NOMBRE_DEL_PAQUETE"
echo
echo "To remove it, use:"
echo "   /sbin/removepkg $NOMBRE_DEL_PAQUETE"
echo

exit 0