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#!/usr/bin/perl
package PatchIndexer;
use Data::Dumper;
use Clone qw(clone);
use warnings;
use strict;
use vars qw($VERSION @ISA @EXPORT @EXPORT_OK);
require Exporter;
@ISA = qw(Exporter AutoLoader);
@EXPORT = qw( parseIndex printIndex selectPatches );
sub parseIndex {
my $fh = shift;
our (@data, $patch, @ver, @pn, $desc, $comment);
while(my $i = <$fh>) {
#print "DATA: $i";
if(0) {
# These lines exists for patching only
#
#
} elsif($i =~ /^\s*$/) {
# Ignore whitespace
#print "White: $i";
getEntry();
storeEntry() if(length($patch) or length($comment));
#cleanEntry();
} elsif($i =~ /^\@patch\s+(\S+)\s+$/) {
cleanEntry();
$patch = $1;
chomp $patch;
} elsif($i =~ /^\@ver\s+(\S+)\s+to\s+(\S+)\s+$/) {
my $min = $1;
my $max = $2;
chomp $min;
chomp $max;
#print "Pushing ver $1 $2\n";
push @ver, [$1,$2];
} elsif($i =~ /^\@pn\s+(\S+)\s+$/) {
my $mypn = $1;
chomp $mypn;
push @pn, $mypn;
} elsif($i =~ /^\@\@\s+(.*)\s+$/) {
# Do not chomp descriptions
$desc .= $1."\n";
} elsif($i =~ /^#(.*)\s+$/) {
# Do not chomp comments
$comment .= $1."\n";
} else {
print "Bad! $i\n";
}
}
storeEntry() if(length($patch) or length($comment));
#print Dumper(@data);
return @data;
sub getEntry {
my %entry;
$entry{patch} = $patch if (length($patch) > 0);
$entry{ver} = \@ver if (@ver);
$entry{pn} = \@pn if (@pn);
chomp $desc;
$entry{desc} = $desc if (length($desc) > 0);
chomp $comment;
$entry{comment} = $comment if (length($comment) > 0);
#print Dumper(\%entry);
return %entry;
}
sub storeEntry {
my %entry = getEntry();
my $entry = clone(\%entry);
#print Dumper(\%entry);
push @data, $entry;
cleanEntry();
}
sub cleanEntry {
$patch = '';
@ver = ();
@pn = ();
$desc = '';
$comment = '';
}
}
sub printIndex {
$_ = shift;
my @index = @{ $_ };
my $os = '';
foreach my $i (@index) {
#print Dumper($i);
$os .= sprintf "\@patch %s\n", $i->{patch} if $i->{patch};
foreach $_ ( @{ $i->{ver} } ) {
my @v = @$_;
$os .= sprintf "\@ver %s to %s\n", $v[0], $v[1];
}
foreach my $pn ( @{ $i->{pn} } ) {
$os .= sprintf "\@pn %s\n", $pn;
}
if($i->{desc}) {
my $desc = $i->{desc};
$desc =~ s/^/@@ /gm;
$os .= $desc."\n";
}
if($i->{comment}) {
my $comment = $i->{comment};
$comment =~ s/^/#/gm;
$os .= $comment."\n";
}
$os .= "\n";
}
chomp $os;
return $os;
}
sub selectPatches {
my (@index, $pn, $pv, @newindex);
$_ = shift;
@index = @{ $_ };
$pn = shift;
{
$_ = shift;
my @_pv = split /\./, $_;
until($#_pv >= 3) { push @_pv, 0; };
$pv = join('.', @_pv);
}
#printf "PN: %s\n", $pn;
#printf "PV: %s\n", $pv;
INDEX: foreach my $i (@index) {
my ($match_pn, $match_pv);
$match_pn = $match_pv = 0;
TESTPN: foreach my $testpn ( @{ $i->{pn} } ) {
#printf("testing pn='%s' against '%s' ", $pn, $testpn);
if("$pn" eq "$testpn") {
#printf("PASS\n");
$match_pn = 1;
last TESTPN;
} else {
#printf("FAIL\n");
}
}
TESTPV: foreach my $testpv ( @{ $i->{ver} } ) {
my @v = @$testpv;
#printf("testing pv='%s' against '%s'-'%s' ", $pv, $v[0], $v[1]);
if(pvGte($pv,$v[0]) and pvLte($pv,$v[1])) {
#printf("PASS\n");
$match_pv = 1;
last TESTPV;
} else {
#printf("FAIL\n");
}
}
# Special case for comments
if(defined($i) and defined($i->{comment}) and length($i->{comment})) {
$match_pn = $match_pv = 1;
}
if($match_pn == 1 and $match_pv == 1) {
#printf "match on %s\n", $i->{patch};
push @newindex, $i;
} else {
#printf "no match on %s\n", $i->{patch};
}
}
return @newindex;
}
sub pvCmp {
my (@v1, @v2);
@v1 = split(/\./, shift);
@v2 = split(/\./, shift);
for(my $i = 0; $i < 4; $i++) {
if($v1[$i] > $v2[$i]) {
return 1;
} elsif($v1[$i] < $v2[$i]) {
return -1;
}
}
return 0;
}
sub pvGt {
return pvCmp(shift, shift) > 0;
}
sub pvLt {
return pvCmp(shift, shift) < 0;
}
sub pvGte {
return pvCmp(shift, shift) >= 0;
}
sub pvLte {
return pvCmp(shift, shift) <= 0;
}
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