download.pl: properly cleanup intermediate .hash file

[openwrt/openwrt.git] / scripts / download.pl

diff --git a/scripts/download.pl b/scripts/download.pl
index cdccae133f499f0ca46a1324b87ddd1334750f7f..84d10dbe5f9daea410c33677ef8cb3b90160f3ae 100755 (executable)
--- a/scripts/download.pl
+++ b/scripts/download.pl
@@ -93,6 +93,7 @@ $hash_cmd or ($file_hash eq "skip") or die "Cannot find appropriate hash command
 sub download
 {
        my $mirror = shift;
+       my $download_filename = shift;
 
        $mirror =~ s!/$!!;
 
@@ -139,7 +140,7 @@ sub download
                        }
                };
        } else {
-               my @cmd = download_cmd("$mirror/$url_filename");
+               my @cmd = download_cmd("$mirror/$download_filename");
                print STDERR "+ ".join(" ",@cmd)."\n";
                open(FETCH_FD, '-|', @cmd) or die "Cannot launch curl or wget.\n";
                $hash_cmd and do {
@@ -261,11 +262,32 @@ foreach my $mirror (@ARGV) {
 push @mirrors, 'https://sources.openwrt.org';
 push @mirrors, 'https://mirror2.openwrt.org/sources';
 
+if (-f "$target/$filename") {
+       $hash_cmd and do {
+               if (system("cat '$target/$filename' | $hash_cmd > '$target/$filename.hash'")) {
+                       die "Failed to generate hash for $filename\n";
+               }
+
+               my $sum = `cat "$target/$filename.hash"`;
+               $sum =~ /^(\w+)\s*/ or die "Could not generate file hash\n";
+               $sum = $1;
+
+               cleanup();
+               exit 0 if $sum eq $file_hash;
+
+               die "Hash of the local file $filename does not match (file: $sum, requested: $file_hash) - deleting download.\n";
+               unlink "$target/$filename";
+       };
+}
+
 while (!-f "$target/$filename") {
        my $mirror = shift @mirrors;
        $mirror or die "No more mirrors to try - giving up.\n";
 
-       download($mirror);
+       download($mirror, $url_filename);
+       if (!-f "$target/$filename" && $url_filename ne $filename) {
+               download($mirror, $filename);
+       }
 }
 
 $SIG{INT} = \&cleanup;