#!/usr/bin/perl
# $Id: html-install.in,v 1.4 2002/11/17 22:45:16 cjwatson Exp $
# Takes 1 argument - directory tree to install into
# Tree _must_ be synch'd with one used by db2html to generate file

use POSIX;
$config_path = '/etc/debbugs';

require("$config_path/config");
$ENV{'PATH'} = $lib_path.':'.$ENV{'PATH'};

$dirtree= shift(@ARGV);
defined($dirtree) or die 'usage';
chdir $dirtree or die $!;

$filenamere= '[0-9a-z]{2}/[0-9a-z][-+_:,.0-9a-zA-Z]*';

opendir(D,".") or die " opendir: $!";
while ($dir=readdir(D)) {
    next if $dir =~ m/^\.\.?$/;
    if (-f $dir) {
        $remove{$dir}= 1;
    } else {
        opendir(E,"$dir") or die " opendir $dir: $!";
        while ($_=readdir(E)) {
            next if $_ =~ m/^\.\.?$/;
            $remove{"$dir/$_"}= 1;
        }
        closedir(E) or die " closedir $dir: $!";
        $rmdir{$dir}= 1;
    }
}
closedir(D) or die " closedir: $!";

while(<>) {
    chomp;
    if (m/^end$/) {
	print "end, removing\n";
        for $k (keys %remove) { unlink($k) || $!==&ENOENT or die "$k: $!"; }
        for $k (keys %rmdir) { rmdir($k) || $!==&ENOTEMPTY || $!==EEXIST or die "$k: $!"; }
        exit 0;
    } elsif (s/^progress //) {
        y/-+:._!#=,0-9a-zA-Z //cd;
        print " progress $_\n";
    } elsif (m/^preserve ($filenamere)$/o) {
        delete $remove{$1};
        delete $remove{"$1.ref"};
        print " preserve $1\n";
    } elsif (m/^(file|diff) (\d+) (ref|def|non) ($filenamere)$/o) {
        $filediff= $1; $linestodo= $2; $ii= $3; $file= $4;
        print " $filediff $ii $file\n";
        delete $remove{$file};
        delete $remove{"$file.ref"} if $ii eq 'ref';
        $file =~ m,^(..)/, or die $file;
        mkdir($1,0777) || $!==EEXIST or die $!;
        $tranfile= $file;
        $tranfile.= '.ref' if $ii eq 'ref';
        open(DT,"> recv.tmp") or die $!;
        if ($filediff eq 'diff') { print DT "r $tranfile\n" or die $!; }
        $indata= 0;
        while ($linestodo--) {
            $z=<STDIN>;
            if ($filediff eq 'diff') {
                if ($indata) { $indata=0 if $incmd && m/^\.$/; }
                elsif ($z =~ m/^[0-9,]+[ac]/) { $indata= 1; }
                elsif ($z !~ m/^[0-9,]+[ds]/) { die "SECURITY $file >$z<"; }
            }
            print DT $z or die $!;
        }
        if ($filediff eq 'diff') { print DT "w new.tmp\nq\n" or die $!; }
        close(DT) or die $!;
        ($z=<STDIN>) eq "that$filediff $file\n" or die die "not confirmed >$z<";
        if ($filediff eq 'diff') {
            $q= `ed -s <recv.tmp 2>&1`;
            length($q) || $? and die "ed $q $?";
            rename("new.tmp","$tranfile") or die "$tranfile $!";
            unlink("recv.tmp") or die $!;
        } else {
            rename("recv.tmp","$tranfile") or die "$tranfile $!";
        }
        if ($ii eq 'ref') {
            open(I,"$tranfile") or die $!;
            open(O,"> ref.tmp") or die $!;
            while (<I>) {
                if (m/^\<\!\-\-ii (\d+)\-\-\>$/) {
                    defined($iival{$1}) or die "$tranfile $1";
                    print O $iival{$1} or die $!;
                } else {
                    print O or die $!;
                }
            }
            close(I) or die $!;
            close(O) or die $!;
            rename("ref.tmp","$file") or die $!;
        } elsif ($ii eq 'def') {
            open(I,"$file") or die $!;
            undef $cdef; $ctext= '';
            while (<I>) {
                if (s/^\<\!\-\-iid (\d+)\-\-\>//) {
                    defined($cdef) and die $file;
                    $cdef= $1;
                    $ctext= $_;
                } elsif (s/\<\!\-\-\/iid\-\-\>\n$//) {
                    defined($cdef) or die $file;
                    $iival{$cdef}= $ctext.$_."\n";
                    $ctext=''; undef $cdef;
                } else {
                    $ctext.= $_ if defined($cdef);
                }
            }
        }
    } elsif (m/^noremoves$/) {
	print "noremoves\n";
        exit 0;
    } else {
        die " huh ? $_";
    }
}

die "eof $!";