#!/bin/bash

# BEGIN_ICS_COPYRIGHT8 ****************************************

# 

# Copyright (c) 2015, Intel Corporation

# 

# Redistribution and use in source and binary forms, with or without

# modification, are permitted provided that the following conditions are met:

# 

#     * Redistributions of source code must retain the above copyright notice,

#       this list of conditions and the following disclaimer.

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#       may be used to endorse or promote products derived from this software

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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

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# END_ICS_COPYRIGHT8   ****************************************

##

## build_srpms

## -----------

## create SRPMS from an expanded source tree

## designed to work with trees built by expand_source.  Supports OFED source.

##

## Usage:

##	build_srpms [-c] [-d SRPMS_dir] [-s source_dir] [-p] [-V kernel_ver] [package...]

##

## Arguments:

##	-c - cleanup SOURCES, SPECS and SRPMS in each package when done

##	-d - SRPMS directory to create, default is ./SRPMS

##	-s - source for build, default is ., ignored if package(s) specified

##	-p - unapply patches for ofa_kernel

##	-V - kernel version to unapply patches for, default is `uname -r`

##  package - a package source directory

## Environment:

#. $ICSBIN/funcs.sh

Usage()

{

	# include "ERROR" in message so weeklybuild catches it in error log

	echo "ERROR: build_srpms failed" >&2

	echo "Usage: build_srpms [-c] [-d SRPMS_dir] [-s source_dir] [-p] [-V kernel_ver] [package...]" >&2

	echo "    -c - cleanup SOURCES, SPECS and SRPMS in each package when done" >&2

	echo "    -d - SRPMS directory to create, default is ./SRPMS" >&2

	echo "    -s - source for build, default is ., ignored if package(s) specified" >&2

	echo "    -p - unapply patches for ofa_kernel" >&2

	echo "    -V - kernel version to unapply patches for, default is `uname -r`" >&2

	echo "    -v - verbose output" >&2

	echo "    package - a package source directory" >&2

	exit 2

}

# convert $1 to an absolute path

fix_dir()

{

	if [ x$(echo $1|cut -c1) != x"/" ]

	then

		echo $PWD/$1

	else

		echo $1

	fi

}

build_flags=

patch_kernel=n

kernel_ver=`uname -r`

srpms_dir=$PWD/SRPMS

source_dir=$PWD

vopt=""

packages=

clean=n

while getopts cs:d:pV:v param

do

	case $param in

	c)	clean=y;;

	d)	srpms_dir="$OPTARG";;

	s)	source_dir="$OPTARG";;

	p)	patch_kernel=y;;

	V)	kernel_ver="$OPTARG";;

	v)	vopt="-v";;

	*)	Usage;;

	esac

done

shift $(($OPTIND -1))

unset IFS # use default so enable word expansion

source_dir=$(fix_dir $source_dir)

srpms_dir=$(fix_dir $srpms_dir)

echo "Building SRPMS in $srpms_dir from $source_dir..."

mkdir -p $srpms_dir

gettaropt()

{

	case $1 in

	*.tgz)	taropt=z;;

	*.tar.gz)	taropt=z;;

	*.tar.bz2)	taropt=j;;

	*)	echo "Unknown tarfile format: $tarfile"; exit 1

	esac

}

checkfiles()

{

	local ret

	ret=0

	if [ ! -f SPECS/$specfile ]

	then

		echo "$srpm: missing file: SPECS/$specfile"

		ret=1

	fi

	for f in $tarfile $otherfiles

	do

		if [ ! -f SOURCES/$f ]

		then

			echo "$srpm: missing file: SOURCES/$f"

			ret=1

		fi

	done

	return $ret

}

if [ $# -eq 0 ]

then

	#if [ ! -f package_list ]

	#then

	#	echo "ERROR: build_srpms: package_list not found in $source_dir" >&2

	#	echo "ERROR: build_srpms: source_dir must be created by expand_source" >&2

	#	exit 1

	#fi

	#set -- $(grep -v '^#' package_list)

	#set -- $(cat package_list)

	cd $source_dir

	set -- $(ls */namemap|cut -f1 -d /)

	if [ $# -eq 0 ]

	then

		echo "build_srpms: ERROR: No packages found in $source_dir" >&2

		exit 1

	fi

fi

for package in "$@"

do

	(

	if [ ! -f $package/namemap -o ! -f $package/make_symlinks ]

	then

		echo "ERROR: build_srpms: namemap not found in $source_dir/$package" >&2

		echo "ERROR: build_srpms: source_dir must be created by expand_source" >&2

		exit 1

	fi

	cd $package

	bash -x ./make_symlinks

	# tail is just to be paranoid, should only be 1 non-comment line

	grep -v "^#" namemap|tail -1|while read package srpm specfile srcdir tarfile otherfiles

	do

		echo "Generating $srpm from $package..."

		gettaropt $tarfile

		case $srpm in

		*ofa_kernel*)

				if [ $patch_kernel = y ]

				then

					echo "Un-Patching ofa_kernel for $kernel_ver..."

					(

						cd src

						# TBD - undo ofed_scripts/ofed_patch.sh

						# need an unapply option or a separate unpatch script

						echo "build_srpms: ERROR: -p option not implemented" >&2; exit 1

					)

				fi

				;;

		esac

		rm -rf SOURCES SPECS SRPMS

		mkdir SOURCES SPECS SRPMS

		# copy all the source files to the proper directory name

		# omit CVS directories

		# Note we can't symlink because we need tar below to not follow symlinks

		(

			mkdir SOURCES/$srcdir;

			cd src; find . -name CVS -prune -o -name '*~' -prune -o -print|cpio -pdum ../SOURCES/$srcdir

			if [ $? != 0 -o ! -e ../SOURCES/$srcdir ]

			then

				echo "$srpm: ERROR: unable to create: $package/SOURCES/$srcdir" >&2

				exit 1

			fi

		)

		[ $? -eq 0 ] || exit 1

		# create the final tarfile which will be included in the srpm

		(

			cd SOURCES

			# set timestamp order for files which are typically pregenerated

			# this avoids the need to upgrade to autoconf 2.60 on older distros

			find $srcdir -name 'configure.in'|xargs -r touch

			sleep 1

			find $srcdir -name '*.m4'|xargs -r touch

			sleep 1

			find $srcdir -name 'configure'|xargs -r touch

			sleep 1

			find $srcdir -name 'config.status'|xargs -r touch

			sleep 1

			find $srcdir -name 'Makefile.in'|xargs -r touch

			sleep 1

			find $srcdir -name '*h.in'|xargs -r touch

			sleep 1

			tar cf$taropt $tarfile $vopt $srcdir

			if [ $? != 0 -o ! -e $tarfile ]

			then

				echo "$srpm: ERROR: unable to create: $package/SOURCES/$tarfile" >&2

				exit 1

			fi

			rm -rf $srcdir

		)

		[ $? -eq 0 ] || exit 1

		if [ x"$otherfiles" != x ]

		then

			cp $otherfiles SOURCES/

			if [ $? != 0 ]

			then

				echo "$srpm: ERROR: unable to copy: $otherfiles to $package/SOURCES" >&2

				exit 1

			fi

		fi

		cp $specfile SPECS/$specfile

		if [ $? != 0 -o ! -e SPECS/$specfile ]

		then

			echo "$srpm: ERROR: unable to create: $package/SPECS/$specfile" >&2

			exit 1

		fi

		checkfiles || exit 1

		rpmbuild --nodeps -bs --define "_topdir `pwd`" SPECS/$specfile

		if [ $? != 0 -o ! -e SRPMS/$srpm ]

		then

			echo "$srpm: ERROR: unable to create: $package/SRPMS/$srpm" >&2

			exit 1

		fi

		cp SRPMS/$srpm $srpms_dir

		echo "Built $package/SRPMS/$srpm"

		if [ $? != 0 -o ! -e $srpms_dir/$srpm ]

		then

			echo "$srpm: ERROR: unable to create: $srpms_dir/$srpm" >&2

			exit 1

		fi

		if [ "$clean" = y ]

		then

			rm -rf SOURCES SPECS SRPMS

		fi

		echo "Copied $package/SRPMS/$srpm to $srpms_dir/$srpm"

	done

	)

	if [ $? -ne 0 ]

	then

		echo "build_srpms: ERROR building $package" >&2

		exit 1

	fi

done