#!/bin/bash
# Copyright (c) 2008, Fred Emmott <mail@fredemmott.co.uk>
# 
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
# 
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

pkghelpers_checkpkg() {
	SUCCESS=$(mktemp $TMP/pkghelpers.XXXXXX)
	##### JUNK IN ROOT #####
	RootJunk=$(ls -1 | egrep -v 'bin|boot|dev|etc|home|install|lib|lib64|media|mnt|opt|proc|sbin|srv|sys|tmp|usr|var')
	if [ "$RootJunk" != "" ]; then
		for dir in $RootJunk; do
			pkghelpers_warn Possible junk in / in package: $dir
		done
		rm -f $SUCCESS
	fi

	##### UNSTRIPPED BINARIES #####
	for file in $(find -type f | xargs file | grep ELF | grep "not stripped" | cut -f1 -d: | sed 's#^./##'); do
		pkghelpers_warn Unstripped binary: $file
		rm -f $SUCCESS
	done
	
	##### UNCOMPRESSED MAN PAGES #####
	[ $(ls -1 usr/man/*/*.[1-8] 2>/dev/null | wc -l) != 0 ] && pkghelpers_warn Uncompressed man pages detected. && rm -f $SUCCESS

	##### DIRECTORIES THAT "SHOULDN'T EXIST" #####
	$MULTILIB && WarnDirs="lib usr/lib usr/lib/pkgconfig"
	$MULTILIB || WarnDirs="lib64 usr/lib64 usr/lib64/pkgconfig"
	WarnDirs="$WarnDirs usr/local usr/share/man opt/kde"

	for dir in $WarnDirs; do
		[ -e $dir ] && pkghelpers_warn $dir found in package. && rm -f $SUCCESS
	done

	##### SLACK-DESC #####
	[ ! -e install/slack-desc ] && pkghelpers_warn No slack-desc found in package. && rm -f $SUCCESS

	##### BAD OWNERSHIP #####
	find -exec ls -ld {} \; | (
		while read line; do
			user=$(echo $line | cut -f3 '-d ')
			# Convert username to numeric UID
			echo $user | egrep -q '[^0-9]' && user=$(echo $user | egrep "^$user:" /etc/passwd | cut -f3 -d:)

			[ $user -gt 100 ] && pkghelpers_warn "File owned by $user: $(echo $line | awk '{ print $8 }')" && rm -f $SUCCESS
		done
	)

	##### BAD SYMLINKS #####
	find -type l | (
		while read line; do
			if [ ! -e $(readlink -m "$line") ]; then
				echo "Bad symbolic link: $line -> $(readlink -m "$line")"
				rm -f $SUCCESS
			fi
			if ls -ld "$line" | grep -q "/tmp/package"; then
				echo "Symbolic link to destdir: $line -> $(readlink -m "$line")"
				rm -f $SUCCESS
			fi
		done
	)

	if [ ! -e $SUCCESS ]; then
		exit 1
	else
		rm $SUCCESS
		exit 0
	fi		
}