<?php

$packages_not_to_rebuild = array("ant");

function get_reqs($package,$sanity=0)
{
	global $requires, $cdeps;
	$reqs = array();
	if(in_array($package,array_keys($requires))) {
	#	print "get_reqs($package)\n";	
		$sanity++;
		foreach($requires[$package] as $p) {
			// loop reqs for this package
	#		for($i=0;$i<=$sanity;$i++) print "\t";
	#		print "get_reqs($p)\n";
			if(in_array($p,array_keys($requires))) {
				$reqs[] = $p;
				if($sanity < 15) {
					if(isset($requires[$p])) {
						// reqs list is current list, plus the package we are looking, plus the reqs of the current package
						# for($i=0;$i<=$sanity;$i++) print "\t";
						# print "$package: get_reqs($p)\n";
						$reqs_new = array_unique(get_reqs($p,$sanity));
						if(in_array($package,$reqs_new)) {
							print "\nWhile finding child deps for $package, found $package in it's own dependancy tree";
							$cdeps[$package] = $reqs_new;
						}
						$reqs = array_merge($reqs,$reqs_new);
					}
					else {
						// print "\n*skipping $p as we are not rebuilding it";
					}
				}
				else {
#					print "\nSanity error for $package\n";
				}

			}
		}
	#	$reqs = array_unique($reqs);
	#	print "#reqs($package)=(" . implode(",",$reqs) . ")\n";
	#	sort($reqs);
	}
	else {
		// print "\n#skipping $package as we are not rebuilding it";
	}
	return($reqs);
}

function write_script($package,$reqs)
{
	global $requires;
	$fh = fopen("scripts/${package}.sh",'w');
	fputs($fh,"#!/bin/bash -e\n");
	foreach($reqs as $child) {
		if(in_array($child,array_keys($requires))) {
			fputs($fh,"./scripts/${child}.sh\n");
		}
	}
	fputs($fh,"
package_exists=`ls -1  /tmp/jpackage/$package*.rpm 2>/dev/null || true`
if [ -n \"\$package_exists\" ]; then
	echo \"Skipping build of $package\"
	exit 0
fi
echo -n \"Building $package ... \"
rm -f /var/lib/mock/jpackage/result/*
mock -r jpackage --no-clean rebuild ".getcwd()."/SRPMS/${package}-*.src.rpm > run.log 2>&1 &&  ok=\"true\" || ok=\"false\"
if [ \"\$ok\" == \"true\" ]; then
	echo \"OK\"
	mkdir -p /tmp/jpackage/
	mv /var/lib/mock/jpackage/result/*.rpm /tmp/jpackage/
	createrepo -q /tmp/jpackage/
else
	echo \"*** FAILED ***\"
	if [ ! -f /var/lib/mock/jpackage/result/root.log ]; then
		cat run.log
		rm -f run.log
		exit 1
	fi
	missing_deps=`egrep \"Error: Missing Dependency|No Package Found\" /var/lib/mock/jpackage/result/root.log 2>/dev/null || true` # missing root.log shouldn't stop error display
	if [ -n \"\$missing_deps\" ]; then
		echo \$missing_deps > scripts/${package}.sh.log
	else
		tail -n 250 /var/lib/mock/jpackage/result/{root,build}.log > scripts/${package}.sh.log
	fi
	cat scripts/${package}.sh.log
	exit 1
fi");
	fclose($fh);
}
// *********************************************************************

$requires = array();
$cdeps = array();

$hd = dir("./SRPMS");
print "Reading packages";
while($name = $hd->read()) {
	if(ereg("\.src\.rpm",$name)) {
		//print "name=$name\n";
		$package = trim(`rpm -qp --queryformat=%{name} ./SRPMS/$name 2>/dev/null`);	
		if(!in_array($package,$packages_not_to_rebuild)) {
			$requires[$package]=array();
			exec("rpm -qp --requires ./SRPMS/$name 2>/dev/null",$results);
			foreach($results as $name) {
				if(ereg("^([^( /]+) ",$name,$matches)) {
					$requires[$package][]=$matches[1];
				}
			}
			unset($results);
			print ".";
		}
		else {
			print "skipping $package\n";
		}
	}
}
print "\n";

if(!is_dir("scripts")) mkdir("scripts",0777,true);  
if(!is_dir("/tmp/jpackage")) mkdir("scripts",0777,true);  

#print_r($requires);
$reqtree = array();
print "Exanding dependancy tree";
foreach($requires as $package=>$reqs) {
#	print "$package\t requires (".implode(",",$reqs).")\n";
	$reqtree[$package] = get_reqs($package);
#	print "$package\t requires tree (".implode(",",$reqtree[$package]).")\n";
#	print "\n";
	print ".";
	write_script($package,$requires[$package]);
	chmod("scripts/${package}.sh",0755);
}
print "\n";

print_r($cdeps);

?>