#!/bin/bash
#
# Blueprint to build dcron-2.3.3
#
# The dcron package contains 'crontab' and 'crond' programs that allow
# scheduling and periodic execution of jobs.
#
# Source code is from: ftp://ftp.ibiblio.org/pub/linux/system/daemons/cron/
#
# This architect blueprint is copyright (c)2003-2004 David Horton
# dhorton@nospam.speakeasy.net
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to: 
#
#   Free Software Foundation, Inc.
#   59 Temple Place - Suite 330
#   Boston, MA 02111-1307, USA
#
#
# 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.
export CC="gcc -mcpu=i386"
cd $BUILD_DIR
# Change the Makefile to facilitate installation into the staging area.
mv Makefile Makefile.orig
sed -e 's!/usr/!$(DESTDIR)/usr/!' Makefile.orig >Makefile
# Generate the protos.h file so it can be changed.
make protos.h
# Change protos.h to get rid of protoypes for 'strdup' that cause errors.
mv protos.h protos.orig
sed -e '/strdup/d' protos.orig >protos.h
# There are additional 'strdup' references to delete in 'subs.c' along
# with a two-digit year to four-digit year Y2K fix.
mv subs.c subs.orig
sed -e '/strdup/d' -e '134,$d' -e 's/%y/%Y/' subs.orig >subs.c
# Change the path to 'sendmail' in defs.h.
mv defs.h defs.orig
sed -e 's!/usr/lib/sendmail!/usr/sbin/sendmail!' defs.orig >defs.h
#
# 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 -p $STAGING_DIR/usr/sbin
mkdir -p $STAGING_DIR/usr/man/man1
mkdir -p $STAGING_DIR/usr/man/man8
make DESTDIR=$STAGING_DIR 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
#
# Post-install tweaking - Move man pages to /usr/share
mkdir -p $STAGING_DIR/usr/share
mv $STAGING_DIR/usr/man $STAGING_DIR/usr/share
#
# end of dcron blueprint