blob: 8d5db2f57c685f6d7a4ed2ebc7382fbd46810c7f (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
#! @perl@ -w @perlFlags@
use strict;
use File::Temp qw(tempdir);
use Nix::Config;
use Nix::Manifest;
my $tmpDir = tempdir("nix-pull.XXXXXX", CLEANUP => 1, TMPDIR => 1)
or die "cannot create a temporary directory";
my $manifestDir = $Nix::Config::manifestDir;
# Prevent access problems in shared-stored installations.
umask 0022;
# Create the manifests directory if it doesn't exist.
if (! -e $manifestDir) {
mkdir $manifestDir, 0755 or die "cannot create directory `$manifestDir'";
}
# Make sure that the manifests directory is scanned for GC roots.
my $gcRootsDir = "$Nix::Config::stateDir/gcroots";
my $manifestDirLink = "$gcRootsDir/manifests";
if (! -l $manifestDirLink) {
symlink($manifestDir, $manifestDirLink) or die "cannot create symlink `$manifestDirLink'";
}
# Process the URLs specified on the command line.
sub downloadFile {
my $url = shift;
$ENV{"PRINT_PATH"} = 1;
$ENV{"QUIET"} = 1;
my ($dummy, $path) = `$Nix::Config::binDir/nix-prefetch-url '$url'`;
die "cannot fetch `$url'" if $? != 0;
die "nix-prefetch-url did not return a path" unless defined $path;
chomp $path;
return $path;
}
sub processURL {
my $url = shift;
$url =~ s/\/$//;
my $manifest;
# First see if a bzipped manifest is available.
if (system("$Nix::Config::curl --fail --silent --location --head '$url'.bz2 > /dev/null") == 0) {
print "fetching list of Nix archives at `$url.bz2'...\n";
$manifest = downloadFile "$url.bz2";
}
# Otherwise, just get the uncompressed manifest.
else {
print "fetching list of Nix archives at `$url'...\n";
$manifest = downloadFile $url;
}
my $baseName = "unnamed";
if ($url =~ /\/([^\/]+)\/[^\/]+$/) { # get the forelast component
$baseName = $1;
}
my $hash = `$Nix::Config::binDir/nix-hash --flat '$manifest'`
or die "cannot hash `$manifest'";
chomp $hash;
my $urlFile = "$manifestDir/$baseName-$hash.url";
open URL, ">$urlFile" or die "cannot create `$urlFile'";
print URL ($ENV{'NIX_ORIG_URL'} || $url);
close URL;
my $finalPath = "$manifestDir/$baseName-$hash.nixmanifest";
unlink $finalPath if -e $finalPath;
symlink("$manifest", "$finalPath")
or die "cannot link `$finalPath to `$manifest'";
# Delete all old manifests downloaded from this URL.
for my $urlFile2 (glob "$manifestDir/*.url") {
next if $urlFile eq $urlFile2;
open URL, "<$urlFile2" or die;
my $url2 = <URL>;
chomp $url2;
close URL;
next unless $url eq $url2;
my $base = $urlFile2; $base =~ s/.url$//;
unlink "${base}.url";
unlink "${base}.nixmanifest";
}
}
while (@ARGV) {
my $url = shift @ARGV;
if ($url eq "--skip-wrong-store") {
# No-op, no longer supported.
} else {
processURL $url;
}
}
# Update the cache.
updateManifestDB();
|
