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|
use strict;
sub readManifest {
my $manifest = shift;
my $narFiles = shift;
my $patches = shift;
my $successors = shift;
open MANIFEST, "<$manifest";
my $inside = 0;
my $type;
my $storePath;
my $url;
my $hash;
my $size;
my @preds;
my $basePath;
my $baseHash;
my $patchType;
while (<MANIFEST>) {
chomp;
s/\#.*$//g;
next if (/^$/);
if (!$inside) {
if (/^\{$/) {
$type = "narfile";
$inside = 1;
undef $storePath;
undef $url;
undef $hash;
$size = 999999999;
@preds = ();
}
elsif (/^patch \{$/) {
$type = "patch";
$inside = 1;
undef $url;
undef $hash;
undef $size;
undef $basePath;
undef $baseHash;
undef $patchType;
}
else { die "bad line: $_"; }
} else {
if (/^\}$/) {
$inside = 0;
if ($type eq "narfile") {
$$narFiles{$storePath} = []
unless defined $$narFiles{$storePath};
my $narFileList = $$narFiles{$storePath};
my $found = 0;
foreach my $narFile (@{$narFileList}) {
if ($narFile->{url} eq $url) {
if ($narFile->{hash} eq $hash) {
$found = 1;
} else {
die "conflicting hashes for URL $url, " .
"namely $narFile->{hash} and $hash";
}
}
}
if (!$found) {
push @{$narFileList},
{url => $url, hash => $hash, size => $size};
}
foreach my $p (@preds) {
$$successors{$p} = $storePath;
}
}
elsif ($type eq "patch") {
$$patches{$storePath} = []
unless defined $$patches{$storePath};
my $patchList = $$patches{$storePath};
my $found = 0;
foreach my $patch (@{$patchList}) {
if ($patch->{url} eq $url) {
if ($patch->{hash} eq $hash) {
$found = 1 if ($patch->{basePath} eq $basePath);
} else {
die "conflicting hashes for URL $url, " .
"namely $patch->{hash} and $hash";
}
}
}
if (!$found) {
push @{$patchList},
{ url => $url, hash => $hash, size => $size
, basePath => $basePath, baseHash => $baseHash
};
}
}
}
elsif (/^\s*StorePath:\s*(\/\S+)\s*$/) { $storePath = $1; }
elsif (/^\s*Hash:\s*(\S+)\s*$/) { $hash = $1; }
elsif (/^\s*URL:\s*(\S+)\s*$/) { $url = $1; }
elsif (/^\s*Size:\s*(\d+)\s*$/) { $size = $1; }
elsif (/^\s*SuccOf:\s*(\/\S+)\s*$/) { push @preds, $1; }
elsif (/^\s*BasePath:\s*(\/\S+)\s*$/) { $basePath = $1; }
elsif (/^\s*BaseHash:\s*(\S+)\s*$/) { $baseHash = $1; }
elsif (/^\s*Type:\s*(\S+)\s*$/) { $patchType = $1; }
# Compatibility;
elsif (/^\s*NarURL:\s*(\S+)\s*$/) { $url = $1; }
elsif (/^\s*MD5:\s*(\S+)\s*$/) { $hash = $1; }
else { die "bad line: $_"; }
}
}
close MANIFEST;
}
return 1;
|
