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adding the possibility of local file cache

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specify file://path_to_file_cache within localmirrors file to add new local file cache


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10617 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
ralph 2008-03-18 21:07:22 +00:00
parent 1f5ca792f8
commit 65b632d241
1 changed files with 33 additions and 25 deletions
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58
scripts/download.pl
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@ -20,8 +20,8 @@ my @mirrors;
my $ok; my $ok;
sub localmirrors { sub localmirrors {
my @mlist; my @mlist;
open LM, "$scriptdir/localmirrors" and do { open LM, "$scriptdir/localmirrors" and do {
while (<LM>) { while (<LM>) {
chomp $_; chomp $_;
push @mlist, $_; push @mlist, $_;
@ -37,9 +37,8 @@ sub localmirrors {
} }
close CONFIG; close CONFIG;
}; };
return @mlist; return @mlist;
} }
sub which($) { sub which($) {
@ -61,36 +60,45 @@ sub download
my $mirror = shift; my $mirror = shift;
my $options = $ENV{WGET_OPTIONS}; my $options = $ENV{WGET_OPTIONS};
$options or $options = ""; $options or $options = "";
$mirror =~ s/\/$//; $mirror =~ s/\/$//;
open WGET, "wget -t5 --timeout=20 $options -O- \"$mirror/$filename\" |" or die "Cannot launch wget.\n"; if( $mirror =~ /^file:\/\// ) {
open MD5SUM, "| $md5cmd > \"$target/$filename.md5sum\"" or die "Cannot launch md5sum.\n"; my $cache = $mirror;
open OUTPUT, "> $target/$filename.dl" or die "Cannot create file $target/$filename.dl: $!\n"; $cache =~ s/file:\/\///g;
my $buffer; print "Checking local cache: $cache\n";
while (read WGET, $buffer, 1048576) { system("mkdir -p $target/");
print MD5SUM $buffer; system("cp -f $cache/$filename $target/$filename.dl") == 0 or return;
print OUTPUT $buffer; system("$md5cmd $target/$filename.dl > \"$target/$filename.md5sum\" ") == 0 or return;
} else {
open WGET, "wget -t5 --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) {
print MD5SUM $buffer;
print OUTPUT $buffer;
}
close MD5SUM;
close WGET;
close OUTPUT;
if (($? >> 8) != 0 ) {
print STDERR "Download failed.\n";
cleanup();
return;
}
} }
close MD5SUM;
close WGET;
close OUTPUT;
if (($? >> 8) != 0 ) {
print STDERR "Download failed.\n";
cleanup();
return;
}
my $sum = `cat "$target/$filename.md5sum"`; 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; $sum = $1;
if (($md5sum =~ /\w{32}/) and ($sum ne $md5sum)) { if (($md5sum =~ /\w{32}/) and ($sum ne $md5sum)) {
print STDERR "MD5 sum of the downloaded file does not match (file: $sum, requested: $md5sum) - deleting download.\n"; print STDERR "MD5 sum of the downloaded file does not match (file: $sum, requested: $md5sum) - deleting download.\n";
cleanup(); cleanup();
return; return;
} }
unlink "$target/$filename"; unlink "$target/$filename";
system("mv \"$target/$filename.dl\" \"$target/$filename\""); system("mv \"$target/$filename.dl\" \"$target/$filename\"");
cleanup(); cleanup();
@ -140,7 +148,7 @@ push @mirrors, 'http://downloads.openwrt.org/sources';
while (!$ok) { while (!$ok) {
my $mirror = shift @mirrors; my $mirror = shift @mirrors;
$mirror or die "No more mirrors to try - giving up.\n"; $mirror or die "No more mirrors to try - giving up.\n";
download($mirror); download($mirror);
-f "$target/$filename" and $ok = 1; -f "$target/$filename" and $ok = 1;
} }