#!/bin/sh

# This script gets and installs a package from the Website.
# It is called by easypack package1 ...
# A package must be in the form of pack.tar.bz2 and must
# include a build script that makes and installs it.
# The build script should succeed if installation works, else fail

# Examples:
#	easypack awk elle telnet	# fetch and install 3 packages
#	easypack -o awk elle telnet	# fetch and replace existing packs

setglobal SOURCE_DIR = '/usr/local/src'		# where the source is deposited
setglobal OVERWRITE = '0'				# can an installed package be overwritten?
setglobal SOFTWARE_DIR = '"http://www.minix3.org/software'"


# Check for at least one parameter
match $Argc {
with 0	echo Usage: $0 package ...
	exit 
}

# Change to source directory
setglobal ORIG_DIR = $[pwd]
rm -f Log			# remove old debugging log
mkdir $SOURCE_DIR || true
cd $SOURCE_DIR || exit

if test $[id -u] -ne 0
{
	# Check for write permission here
	if test ! -w . 
	   { echo You do not have write permission for $SOURCE_DIR
	   exit 1
	}
}

# Check for -o flag; if found, set OVERWRITE
if test $1 = "-o"
   { setglobal OVERWRITE = '1'
        shift
}for i in @ARGV { # Check to see if it exists. Don't overwrite unless -o given
   echo " " ; echo Start fetching package $i 
   echo " " >>$ORIG_DIR/Log
   echo ------------- Start fetching $i ------------------ >>$ORIG_DIR/Log
   if test -r $i
      { # Directory already exists. May it be overwritten?
	   if test $OVERWRITE = 0
              { echo $i already exists. Skipping this package
                   continue
	      } else { # Remove the directory
		   rm -rf $i
		   echo Existing directory $i removed
	   }
    }

   # Remove any junk from previous attempts
   rm -f $i.tar.bz2 $i.tar

   # Get the package
   setglobal URL = "$SOFTWARE_DIR/$i.tar.bz2"
   setglobal TARBZ = "$i.tar.bz2"
   if urlget $URL >$TARBZ 2>/dev/null
   { :
   } else { 
	echo Cannot get $i.
	echo "   " Tried $URL
	echo "   " Skipping this package
	rm -f $TARBZ
	continue
   }

   # We got it. Unpack it.
   echo Package $i fetched
   bunzip2 $TARBZ || smallbunzip2 $TARBZ
   pax -r <$i.tar
   if test ! -d $i
      { echo Unable to unpack $i
	   continue
      } else { echo Package $i unpacked
   }

   # It is now unpacked. Build it
   cd $i
   binsizes big
   if test -f build.minix
   {	sh build.minix >>$ORIG_DIR/Log 2>&1
	setglobal r = $Status
   } else {	sh build >>$ORIG_DIR/Log 2>&1
	setglobal r = $Status
   }
   if test $r -eq 0 
      { echo Package $i installed
      } else { echo Package $i failed to install, see Log
   }
   if test -f .postinstall
   {	echo Running postinstall script.
	sh -e .postinstall
   }
   binsizes normal

   # Clean up
   cd ..
   rm -f $i.tar $TARBZ # Remove whatever is still lying around
}