72 lines
1.6 KiB
Perl
72 lines
1.6 KiB
Perl
use strict;
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sub processURL {
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my $manifest = shift;
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my $url = shift;
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my $storepaths2urls = shift;
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my $urls2hashes = shift;
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my $successors = shift;
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$url =~ s/\/$//;
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print "obtaining list of Nix archives at $url...\n";
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system("@curl@ --fail --silent --show-error --location --max-redirs 20 " .
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"'$url' > '$manifest' 2> /dev/null") == 0
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or die "curl failed: $?";
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open MANIFEST, "<$manifest";
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my $inside = 0;
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my $storepath;
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my $narurl;
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my $hash;
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my @preds;
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while (<MANIFEST>) {
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chomp;
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s/\#.*$//g;
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next if (/^$/);
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if (!$inside) {
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if (/^\{$/) {
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$inside = 1;
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undef $storepath;
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undef $narurl;
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undef $hash;
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@preds = ();
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}
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else { die "bad line: $_"; }
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} else {
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if (/^\}$/) {
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$inside = 0;
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$$storepaths2urls{$storepath} = $narurl;
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$$urls2hashes{$narurl} = $hash;
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foreach my $p (@preds) {
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$$successors{$p} = $storepath;
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}
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}
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elsif (/^\s*StorePath:\s*(\/\S+)\s*$/) {
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$storepath = $1;
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}
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elsif (/^\s*NarURL:\s*(\S+)\s*$/) {
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$narurl = $1;
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}
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elsif (/^\s*MD5:\s*(\S+)\s*$/) {
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$hash = $1;
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}
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elsif (/^\s*SuccOf:\s*(\/\S+)\s*$/) {
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push @preds, $1;
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}
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else { die "bad line: $_"; }
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}
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}
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close MANIFEST;
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}
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return 1;
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