#!/usr/bin/perl

print <<'END' if $>;
NOTE: Since you're not running as root, the installation will su at
the appropriate time later.  You will need to supply the root password
for the su program.

END

# Gather data.

# JPL_SRC

chop($JPL_SRC = `pwd`);
print "JPL_SRC = $JPL_SRC\n";

# JAVA_HOME

foreach $dir (
    $ENV{JAVA_HOME},
    "/usr/java",
    "/usr/local/java",
    "/usr/lib/java",
    "/usr/local/lib/java",
) {
    $JAVA_HOME = $dir, last if $dir and -d "$dir/bin";
}
die "You must set the \$JAVA_HOME environment variable first.\n"
	unless $JAVA_HOME;
print "JAVA_HOME = $JAVA_HOME\n";

# JPL_HOME

($likelyjpl = $JAVA_HOME) =~ s#(.*)/.*#$1/jpl#;

print <<"END";

You need to decide which directory JPL files are to be installed in.
Applications will look in subdirectories of this directory for any JPL
related files.

You may use the current directory ($JPL_SRC)
or you may use a directory such as $likelyjpl.

END

$| = 1;
until (-d $JPL_HOME) {
    print "Install JPL files where: [$JPL_SRC] ";
    chop($JPL_HOME = <STDIN>);
    $JPL_HOME ||= $JPL_SRC;
    unless (-d $JPL_HOME) {
	print "Warning: $JPL_HOME doesn't exist yet!\n\n";
	print "Do you want to create it? [y] ";
	chop($ans = <STDIN>);
	$ans ||= 'y';
	next unless $ans =~ /^y/i;

	system "mkdir -p $JPL_HOME";
	if ($> and not -d $JPL_HOME) {
	    warn "Couldn't create $JPL_HOME!\nTrying again as root...running su...\n";
	    system "set -x
su root -c 'mkdir -p $JPL_HOME && chown $> $JPL_HOME && chmod 0755 $JPL_HOME'";
	    warn "Couldn't create $JPL_HOME!\n" unless -d $JPL_HOME;
	}
    }
}
print "JPL_HOME = $JPL_HOME\n";

#########################################################################
# Spit out setvars.

print "Writing setvars...\n";

unlink "$JPL_SRC/setvars";
open(SETVARS, ">$JPL_HOME/setvars") or die "Can't create setvars: $!\n";
while (<DATA>) {
    s/^JPL_SRC=.*/JPL_SRC='$JPL_SRC'/;
    s/^JAVA_HOME=.*/JAVA_HOME='$JAVA_HOME'/;
    s/^JPL_HOME=.*/JPL_HOME='$JPL_HOME'/;
    print SETVARS $_;
}
close SETVARS;
chmod 0755, "$JPL_HOME/setvars";
symlink "$JPL_HOME/setvars", "$JPL_SRC/setvars" if $JPL_HOME ne $JPL_SRC;

#########################################################################
# Pretend we're make.

eval `./setvars -perl`;		# Take our own medicine.

print "\n\nStarting install...\n";

system <<'END' and die "Couldn't install JPL\n";
set -x
cd JPL
perl Makefile.PL
make clean
perl Makefile.PL
make install
END

print "\nInstalling PerlInterpreter class\n";

system <<'END' and die "Couldn't install PerlInterpreter\n";
set -x
cd PerlInterpreter
perl Makefile.PL
make clean
perl Makefile.PL
make install
END

print "\nInstalling JNI module\n";

system <<'END' and die "Couldn't install JNI\n";
set -x
cd JNI
perl Makefile.PL -e
make clean
perl Makefile.PL -e
make
echo 'Attempting to install JNI as root'
su root -c "make install"
END

#touch Makefile
#make -f makefile.jv
## These should be executed as root
#rm -rf /usr/lib/perl5/site_perl/i586-linux/auto/JNI
#rm -rf /usr/lib/perl5/site_perl/auto/JNI
#rm -f  /usr/lib/perl5/site_perl/JNI.pm
#make -f makefile.jv install UNINST=1 

print "\nInstalling Sample JPL program\n";

system <<'END' and die "Couldn't install Sample\n";
set -x
cd Sample
perl Makefile.PL
make clean
perl Makefile.PL
make install
END

# Test
print "\n\nTesting Sample...\n";
system <<'END' and die "Couldn't run Sample\n";
set -x
cd Sample
JPLDEBUG=1
export JPLDEBUG
java Sample
END

__END__
#!/bin/sh

# You can edit this, but your changes will only last until the next
# time you run install-jpl.

# Where jpl is currently installed

cd `dirname $0`
JPL_SRC=`pwd`

# Where java is installed

JAVA_HOME=/usr/local/java
export JAVA_HOME

# Where jpl will be installed

JPL_HOME="$JPL_SRC"
export JPL_HOME

# Which perl to run

JPLPERL=perl`perl -e "print $]"`
#JPLPERL=perl5.00404
export JPLPERL

# Some derivative variables
archname=`$JPLPERL -MConfig -e 'print $Config{archname}'`
 archlib=`$JPLPERL -MConfig -e 'print $Config{archlib}'`

CLASSPATH=".:$JPL_HOME/lib${CLASSPATH:+:$CLASSPATH}"
export CLASSPATH

LD_LIBRARY_PATH=".:$JPL_HOME/lib/$archname:$archlib/CORE${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
export LD_LIBRARY_PATH

PERL5LIB="$JPL_HOME/perl${PERL5LIB:+:$PERL5LIB}"
export PERL5LIB

# Make sure the right java programs are selected.
PATH="$JAVA_HOME/bin:$PATH"
export PATH

case "$1" in
-perl)
    cat <<END
\$ENV{PATH} = '$PATH';
\$ENV{JAVA_HOME} = '$JAVA_HOME';
\$ENV{JPL_HOME} = '$JPL_HOME';
\$ENV{JPLPERL} = '$JPLPERL';
\$ENV{CLASSPATH} = '$CLASSPATH';
\$ENV{LD_LIBRARY_PATH} = '$LD_LIBRARY_PATH';
\$ENV{PERL5LIB} = '$PERL5LIB';
END
    ;;
-sh)
    cat <<END
 PATH='$PATH';export PATH;JAVA_HOME='$JAVA_HOME';export JAVA_HOME;JPL_HOME='$JPL_HOME';export JPL_HOME;JPLPERL='$JPLPERL';export JPLPERL;CLASSPATH='$CLASSPATH';export CLASSPATH;LD_LIBRARY_PATH='$LD_LIBRARY_PATH';export LD_LIBRARY_PATH;PERL5LIB='$PERL5LIB';export PERL5LIB
END
    ;;
-csh)
    cat <<END
setenv PATH '$PATH';
setenv JAVA_HOME '$JAVA_HOME';
setenv JPL_HOME '$JPL_HOME';
setenv JPLPERL '$JPLPERL';
setenv CLASSPATH '$CLASSPATH';
setenv LD_LIBRARY_PATH '$LD_LIBRARY_PATH';
setenv PERL5LIB '$PERL5LIB';
END
    ;;
esac