#!/usr/bin/perl

#sub guess_kohahtmldir ($;$);
#----------------------------------------------------------
# DIRECTORIES where source code is located
#----------------------------------------------------------
my $kohadir=`pwd`;
chomp $kohadir;
#my $kohahtmldir=guess_kohahtmldir($kohadir, "/koha/koha/koha-html/");
my $roothomedir=(getpwuid(0))[7];	# ~root is traditionally just /
$roothomedir='/root' unless defined $roothomedir;

my $has_kohaautobuild_conf = 0;

if (-e "$roothomedir/.kohaautobuild.conf") {
    open C, "<$roothomedir/.kohaautobuild.conf";
    while (<C>) {
	chomp;
	if (/kohadir=(.*)/) {
	    $kohadir=$1;
	}
#	if (/kohahtmldir=(.*)/) {
#	    $kohahtmldir=$1;
#	}
    }
    $has_kohaautobuild_conf = 1;
}

my $input;

print qq |
***************************************
* Welcome to the Koha Release Builder *
***************************************

This script will automatically build a release tarball.

The script assumes that you already have the koha and koha-html modules checked
out for the release that you want to build, although it will update the modules
before building.

|;
print "\nWhere is the 'koha' cvs module located [$kohadir]: ";
chomp($input = <STDIN>);
if ($input) {
    $kohadir=$input;
#    unless ($has_kohaautobuild_conf) {
#	$kohahtmldir=guess_kohahtmldir($kohadir, $kohahtmldir);
#    }
}


#print "\nWhere is the 'koha-html' cvs module located [$kohahtmldir]: ";
#chomp($input = <STDIN>);
#if ($input) {
#    $kohahtmldir=$input;
#}

open (C, ">$roothomedir/.kohaautobuild.conf");
print C qq|
kohadir=$kohadir
#kohahtmldir=$kohahtmldir
|;

#----------------------------------------------------------
# which VERSION are we building ?
#----------------------------------------------------------
print "\n\nGuessing at next release version.  You may need to enter your SourceForge password...\n";
chdir $kohadir;
open (CVSLOG, "cvs log misc/buildrelease|");
my $symbolicnamessection=0;
my $symbolicnames;
my $highestversion;
my $highestrc;
my $released;
my $majorversion;
my $majorversionrc;
while (<CVSLOG>) {
    if (/^symbolic names:/) {
	$symbolicnamessection=1;
    }
    if ($symbolicnamessection && (/^\s+([^:]*):/)) {
	my $tag=$1;
	if ($tag=~/R_(.*)/) {
	    my $version='';
	    my $rc=0;
	    my $id=$1;
	    $id=~s/-/\./g;
	    if ($id =~/(.*)RC(.*)/) {
		$version=$1;
		$rc=$2;
		$version=~m#(\d+\.\d+)\.#;
		if (versioncompare($version, $majorversion->{$1})) {
		    $majorversion->{$1}=$version;
		    $majorversionrc->{$1}=$rc;
		}
		if (versioncompare($version, $highestversion)) {
		    $highestversion=$version;
		    $released=0;
		    $highestrc=$rc;
		}
	    } else {
		$version=$id;
		$version=~m#(\d+\.\d+)\.#;
		if (versioncompare($version, $majorversion->{$1})) {
		    $majorversion->{$1}=$version;
		    $majorversionrc->{$1}=0;
		}
		if (versioncompare($version, $highestversion)) {
		    $highestversion=$version;
		    $released=1;
		    $highestrc=0;
		}
	    }
	    $symbolicnames->{$version}->{$rc}=1;
	}
    }
}

my $releaseversion='';
my $currentversion='';

my $branchdata=`grep buildrelease CVS/Entries`;
chomp $branchdata;
my $branch=(split(m#/#, $branchdata))[5];

if ($branch eq 'Trel-1-2') {
    $highestversion=$majorversion->{'1.2'};
    $highestrc=$majorversionrc->{'1.2'};
    ($highestrc) ? ($released=0) : ($released=1);
}

if ($released) {
    my @components=split(/\./, $highestversion);
    $components[$#components]++;
    $nexthighestversion=join '.', @components;
    my $minornumber=(split(/\./, $highestversion))[1];
    if ($minornumber/2 == int($minornumber/2)) {
	$releaseversion=$nexthighestversion."RC1";
    } else {
	$releaseversion=$nexthighestversion;
    }
    $currentversion=$highestversion;
} else {
    $releaseversion=$highestversion."RC".($highestrc+1);
    $currentversion=$highestversion."RC$highestrc";
}


print "Current release tag is $currentversion.\n";
print "\nWould you like to bump that up to $releaseversion (or manually enter version)?  [Y]/N: ";
chomp($input = <STDIN>);
my $tagging_needs_confirmation = 0;
if ($input =~ /^n/i) {
    print "\nWould you like to rebuild the $currentversion tarball?  Y/[N]: ";
    chomp($input = <STDIN>);
    print STDERR "releaseversion=($releaseversion), currentversion=($currentversion)\n";#XXXZZZ
    if ($input =~ /^y/i) {
	$releaseversion=$currentversion;
	$tagging_needs_confirmation = 1;
    } else {
	print "What should the new version be? [$releaseversion]: ";
	chomp ($input=<STDIN>);
	if ($input) {
	    $releaseversion=$input;
	}
    }
} else {
    print "What should the new version be? [$releaseversion]: ";
    chomp ($input=<STDIN>);
    if ($input) {
	$releaseversion=$input;
    }
}


print "\nWould you like to tag the CVS repository?\n(answer yes if releasing tarball)  Y/[N]: ";
chomp ($input=<STDIN>);
my $cvstag=0;
# FIXME: This means anything other than n will tag; too dangerous?
if ($input=~/^y/i) {
    $cvstag=1;
}


if ($cvstag && $tagging_needs_confirmation) {
	print "\n\n";
	print "Do not do this if you have released the tarball to anybody, as it will\n";
	print "overwrite the tag marking the files that were in the tarball:\n\n";
	print "Confirm that you want to overwrite the tag for $releaseversion? Y/[N]: ";
	chomp($input = <STDIN>);
	if ($input =~ /^n/i || $input !~ /\S/) {
	    print "\nStopping.  Please re-run buildrelease now.\n";
	    exit;
	}
}


my $sfuserid='';
if ($cvsroot=$ENV{'CVSROOT'}) {
    $cvsroot=~m#(.*)\@cvs#;
    $sfuserid=$1;
} else {
    $ENV{'CVS_RSH'}='ssh';
    print "\nWhat is your userid at SourceForge: ";
    chomp($input = <STDIN>);
    if ($input) {
	$sfuserid=$input;
    }
    $ENV{'CVSROOT'}="$sfuserid\@cvs.koha.sourceforge.net:/cvsroot/koha";
}
my $tagname=$releaseversion;
$tagname=~s/\./-/g;

print qq|
Updating your checked-out copy of the 'koha' CVS files.
You may need to enter your SourceForge password.
Using $kohadir.
|;
chdir($kohadir) || die "$kohadir: $!\n";
system("cvs update -P");
if ($cvstag) {
    print qq|
Tagging koha with tag R_$tagname
|;
    system("cvs tag -F R_$tagname");
}

#----------------------------------------------------------
# MOVE files to /tmp and build tar.gz
#----------------------------------------------------------

my $rootdir="/tmp/koha-".$releaseversion;
system("rm -rf $rootdir");
mkdir ($rootdir, 0700);
chdir($rootdir) || die "$rootdir: $!\n";

mkdir("intranet-cgi", 0755);
mkdir("intranet-html", 0755);
mkdir("opac-cgi", 0755);
mkdir("opac-html", 0755);
mkdir("scripts", 0755);
mkdir("scripts/z3950daemon", 0755);
mkdir("modules", 0755);
mkdir("docs", 0755);

# Create koha.version file
open (KV, ">$rootdir/koha.version");
print KV "$releaseversion\n";
close KV;

# Copy all CVS files to intranet-cgi
# FIXME: "cp -a" is GNU-ism. It is not portable.
system("cp -a $kohadir/* $rootdir/intranet-cgi");

# Move C4 to modules directory
system("mv $rootdir/intranet-cgi/C4 $rootdir/modules");

# Move files from intranet-cgi to root of tarball
system("mv $rootdir/intranet-cgi/misc/info/* $rootdir");
system("mv $rootdir/intranet-cgi/misc/installer.pl $rootdir");
system("mv $rootdir/intranet-cgi/misc/koha.upgrade $rootdir");
system("mv $rootdir/intranet-cgi/misc/Install.pm $rootdir");
#system("mv $rootdir/intranet-cgi/kohareporter $rootdir"); # does not exist ??
chmod 0770, "$rootdir/installer.pl";
chmod 0770, "$rootdir/koha.upgrade";
system("mv $rootdir/intranet-cgi/misc/koha.conf $rootdir");
system("mv $rootdir/intranet-cgi/misc/koha.mysql $rootdir");
system("mv $rootdir/intranet-cgi/misc/sampledata-1.2 $rootdir");
system("gzip -9 $rootdir/sampledata-1.2");

# Copy files from intranet-cgi to opac-cgi
system("cp $rootdir/intranet-cgi/detail.pl $rootdir/opac-cgi");
system("cp $rootdir/intranet-cgi/moredetail.pl $rootdir/opac-cgi");
system("cp $rootdir/intranet-cgi/search.pl $rootdir/opac-cgi");
system("cp $rootdir/intranet-cgi/subjectsearch.pl $rootdir/opac-cgi");
system("cp $rootdir/intranet-cgi/logout.pl $rootdir/opac-cgi");
system("mv $rootdir/intranet-cgi/opac/* $rootdir/opac-cgi");
system("rmdir $rootdir/intranet-cgi/opac");


# Move files from intranet-cgi to /scripts/ directory
system("mv $rootdir/intranet-cgi/updater $rootdir/scripts");
system("mv $rootdir/intranet-cgi/misc $rootdir/scripts");
system("mv $rootdir/intranet-cgi/marc $rootdir/scripts");

# move only batch & daemon. pl script stay here
system("mv $rootdir/intranet-cgi/z3950/processz3950queue $rootdir/scripts/z3950daemon/");
system("mv $rootdir/intranet-cgi/z3950/*.sh $rootdir/scripts/z3950daemon/");

# Remove extraneous files from intranet-cgi
system("rm -f $rootdir/intranet-cgi/ChangeLog.bak");
system("rm -f $rootdir/intranet-cgi/SendMessages");
system("rm -f $rootdir/intranet-cgi/buildrelease");
system("rm -rf $rootdir/intranet-cgi/t");

# Set all .pl scripts executable
system("find $rootdir/intranet-cgi -name '*.pl' -exec chmod a+x \\{\\} \\;");
# Copy all CVS files to intranet-html and opac-html
# FIXME: "cp -a" is GNU-ism. It is not portable.
#system("cp -a $kohahtmldir/intranet-html/* $rootdir/intranet-html");
#system("cp -a $kohahtmldir/opac-html/* $rootdir/opac-html");

# Copy koha-tmpl files
# FIXME: "cp -a" is GNU-ism. It is not portable.
system('cp', '-a', "$rootdir/intranet-cgi/koha-tmpl/opac-tmpl", "$rootdir/opac-html");
system('cp', '-a', "$rootdir/intranet-cgi/koha-tmpl/intranet-tmpl", "$rootdir/intranet-html");
#copy index files (they are just redirections to main.pl)
system("cp $rootdir/intranet-cgi/koha-tmpl/opac.html $rootdir/opac-html/index.html");
system("cp $rootdir/intranet-cgi/koha-tmpl/intranet.html $rootdir/intranet-html/index.html");
system('rm', '-rf', "$rootdir/intranet-cgi/koha-tmpl");

# Remove junk from directory
system("find $rootdir -name CVS -exec rm -rf \\{\\} \\; 2>/dev/null");
system("find $rootdir -name *~ -exec rm -rf \\{\\} \\; 2>/dev/null");
system("find $rootdir -name .#* -exec rm -rf \\{\\} \\; 2>/dev/null");

chdir("/tmp");
system("tar czf /tmp/koha-$releaseversion.tar.gz koha-".$releaseversion);
system("rm -rf $rootdir");

print qq|
============
= ALL DONE =
============

Your new tarball is located in /tmp/koha-$releaseversion.tar.gz

|;


sub versioncompare {
    my $v1=shift;
    my $v2=shift;
    my @v1=split(/\./, $v1);
    my @v2=split(/\./, $v2);
    my $count=$#v1;
    ($#v2>$count) && ($count=$#v2);
    for (my $index=0; $index<$count; $index++) {
	if ($v1[$index]>$v2[$index]) {
	    return 1;
	}
    }
    return 0;
}

#sub guess_kohahtmldir ($;$) {
#    my($kohadir, $default) = @_;
#    my $kohahtmldir;
    # It probably makes sense to assume that the 'koha' and 'koha-html'
    # modules are checked out within the same parent directory
#    if (-d $kohadir && $kohadir =~ /^(.*)\/[^\/]+$/) {
#	$kohahtmldir = "$1/koha-html"
#    } else {
#	$kohahtmldir = $default;
#    }
#    return $kohahtmldir;
#}