add missing dependency

[openwrt.git] / scripts / download.pl

diff --git a/scripts/download.pl b/scripts/download.pl
index feb38a1..8f5d1d6 100755 (executable)
--- a/scripts/download.pl
+++ b/scripts/download.pl
@@ -18,12 +18,28 @@ my $ok;
 
 @ARGV > 0 or die "Syntax: $0 <target dir> <filename> <md5sum> <mirror> [<mirror> ...]\n";
 
+sub which($) {
+       my $prog = shift;
+       my $res = `which $prog`;
+       $res or return undef;
+       $res =~ /^no / and return undef;
+       $res =~ /not found/ and return undef;
+       return $res;
+}
+
+my $md5cmd = which("md5sum");
+$md5cmd or $md5cmd = which("md5");
+$md5cmd or die 'no md5 checksum program found, please install md5 or md5sum';
+chomp $md5cmd;
+
 sub download
 {
        my $mirror = shift;
-       
-       open WGET, "wget -t1 --timeout=20 -O- \"$mirror/$filename\" |" or die "Cannot launch wget.\n";
-       open MD5SUM, "| md5sum > \"$target/$filename.md5sum\"" or die "Cannot launch md5sum.\n";
+       my $options = $ENV{WGET_OPTIONS};
+       $options or $options = "";
+
+       open WGET, "wget -t1 --timeout=20 $options -O- \"$mirror/$filename\" |" or die "Cannot launch wget.\n";
+       open MD5SUM, "| $md5cmd > \"$target/$filename.md5sum\"" or die "Cannot launch md5sum.\n";
        open OUTPUT, "> $target/$filename.dl" or die "Cannot create file $target/$filename.dl: $!\n";
        my $buffer;
        while (read WGET, $buffer, 1048576) {
@@ -41,7 +57,7 @@ sub download
        }
        
        my $sum = `cat "$target/$filename.md5sum"`;
-       $sum =~ /^(\w+)\s+/ or die "Could not generate md5sum\n";
+       $sum =~ /^(\w+)\s*/ or die "Could not generate md5sum\n";
        $sum = $1;
        
        if (($md5sum =~ /\w{32}/) and ($sum ne $md5sum)) {
@@ -91,7 +107,7 @@ foreach my $mirror (@ARGV) {
        }
 }
 
-push @mirrors, 'http://mirror1.openwrt.org/';
+#push @mirrors, 'http://mirror1.openwrt.org/';
 push @mirrors, 'http://mirror2.openwrt.org/sources';
 push @mirrors, 'http://downloads.openwrt.org/sources/';