#!/bin/bash
#
# Blueprint to build netkit-tftp-0.17. 
#
# netkit-tftp contains a command-line trivial file tranfer protocol
# (TFTP) client and server daemon.  tftp is not well suited to normal
# end-user file transfer applications, but can be very useful to
# system administrators.  tftp is especially good for transfering
# files when the system is in a less than fully-operational state.
# Examples include transfering config files at boot-up or transfering
# files during system recovery.
#
# Source is from ftp://ftp.uk.linux.org/pub/linux/Networking/netkit/
#
#
# This script is public domain software and may be freely copied.
#
# This script 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.
#
#
# Define the package name, source directory, build directory and
# staging directory paths.  Prefixes to directories may be overridden
# by setting shell variables SRC, BUILD and STAGING.  For example,
# doing "export SRC=/root/foo" before calling this script will override
# the default /usr/src and set SRC_DIR to /root/foo/$PKG_NAME instead.
# 
PKG_NAME=$(basename $0)
SRC_DIR=${SRC:-/usr/src}/$PKG_NAME
BUILD_DIR=${BUILD:-/var/tmp/build}/$PKG_NAME
STAGING_DIR=${STAGING:-/var/tmp/staging}/$PKG_NAME
#
# Check that the source directory really exits and bail out if not.
if ! [ -d $SRC_DIR ]; then
  echo "$PKG_NAME: Cannot find source code directory $SRC_DIR."
  exit 1
fi
#
# Do not overwrite existing build directory.
if [ -d $BUILD_DIR ]; then
  echo "$PKG_NAME: Build directory $BUILD_DIR already exists."
  exit 2
else
  mkdir -p $BUILD_DIR
fi
#
# Do not overwrite existing staging directory.
if [ -d $STAGING_DIR ]; then
  echo "$PKG_NAME: Staging directory $STAGING_DIR already exists."
  exit 4
else
  mkdir -p $STAGING_DIR
fi
#
# This is not one of the packages that can be configured and built
# completely outside of the source tree.  So in order to leave the
# original source untouched, the contents of $SRC_DIR are first copied
# to $BUILD_DIR.  The copy in $BUILD_DIR is then modified to suit the
# configuration.
cp -dpR $SRC_DIR/* $BUILD_DIR
#
# Configure the package for FHS compliance and i386 processor.
export CC="gcc -mcpu=i386"
cd $BUILD_DIR
$SRC_DIR/configure \
  --installroot=$STAGING_DIR \
  --prefix=/usr
#
# Check return status and bail out if it's non-zero.
if [ $? -gt 0 ]; then
  echo "$PKG_NAME: Configuration failed!"
  exit 8
fi
# Build the package.
make
#
# Check return code and bail if it looks bad.
if [ $? -gt 0 ]; then
  echo "$PKG_NAME: Build failed!"
  exit 16
fi
#
# Install into staging area.
mkdir -p $STAGING_DIR/usr/bin
mkdir $STAGING_DIR/usr/sbin
mkdir -p $STAGING_DIR/usr/man/man1
mkdir $STAGING_DIR/usr/man/man8
make install
#
# Check return code and bail if it looks bad.
if [ $? -gt 0 ]; then
  echo "$PKG_NAME: Installation to staging area failed!"
  exit 32
fi
#
# Do some post-install tweaking.
#
# Move the tftp client into the / hierarchy since it may be used when
# booting the system or during system recovery.
mkdir $STAGING_DIR/bin
mv $STAGING_DIR/usr/bin/tftp $STAGING_DIR/bin
rmdir $STAGING_DIR/usr/bin
#
# Move the man directory since the configure script does not recognize
# the "--mandir=" option.
mkdir $STAGING_DIR/usr/share
mv $STAGING_DIR/usr/man $STAGING_DIR/usr/share/man
#
# Remove the tftpd.8 symlink to in.tftpd.8 and replace it with a file
# that uses the groff include directive instead.  This makes it easier
# to use compressed manpages later.
rm $STAGING_DIR/usr/share/man/man8/tftpd.8
echo ".so in.tftpd.8" >$STAGING_DIR/usr/share/man/man8/tftpd.8
#
# Create a symbolic link called tftpd that points to in.tftpd.  This
# is for convenience only and is not important to system operation.
ln -s in.tftpd $STAGING_DIR/usr/sbin/tftpd
#
# Space saving tweaks
gzip $STAGING_DIR/usr/share/man/man8/*.8
#
# end of blueprint for netkit-tftp