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* One-click installation :-)

Browse Source 
The script nix-install-package takes a `Nix package file' (which
  contains one or more derivations, along with URLs of Nix caches),
  unpacks it, pulls the caches, and installs the derivations in the
  user's environment.

  For best results, associate the command `xterm -e
  /nix/bin/nix-install-package' with the MIME type
  `application/x-nix-package' and visit
  http://losser.st-lab.cs.uu.nl/~eelco/test/.
This commit is contained in:
Eelco Dolstra 2003-11-24 11:11:40 +00:00
parent b857267893
commit e7ea52d3b3
3 changed files with 117 additions and 67 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
scripts/Makefile.am
View File

@ -1,5 +1,6 @@
bin_SCRIPTS = nix-collect-garbage \
nix-pull nix-push nix-prefetch-url
nix-pull nix-push nix-prefetch-url \
nix-install-package
noinst_SCRIPTS = nix-profile.sh
@ -12,8 +13,8 @@ install-exec-local:
include ../substitute.mk
EXTRA_DIST = nix-switch.in nix-collect-garbage.in \
EXTRA_DIST = nix-collect-garbage.in \
nix-pull.in nix-push.in nix-profile.sh.in \
nix-prefetch-url.in \
nix-prefetch-url.in nix-install-package.in \
prebuilts.conf

37
scripts/nix-install-package.in Normal file
View File

@ -0,0 +1,37 @@
#! /usr/bin/perl -w
use strict;
use POSIX qw(tmpnam);
my $pkgfile = $ARGV[0];
die unless defined $pkgfile;
my $tmpdir;
do { $tmpdir = tmpnam(); }
until mkdir $tmpdir, 0777;
# !!! remove tmpdir on exit
print "unpacking $pkgfile in $tmpdir...\n";
system "bunzip2 < $pkgfile | (cd $tmpdir && tar xf -)";
die if $?;
print "this package contains the following derivations:\n";
system "nix-env -qsf $tmpdir/default.nix";
die if $?;
print "do you wish to install them (y/n)? ";
my $reply = <STDIN>;
chomp $reply;
exit if (!($reply eq "y"));
print "pulling caches...\n";
system "nix-pull `cat $tmpdir/caches`";
die if $?;
print "installing package...\n";
system "nix-env -i $tmpdir/default.nix '*'";
die if $?;
print "installing succeeded! (enter to continue)\n";
<STDIN>;

140
scripts/nix-pull.in
View File

@ -19,86 +19,98 @@ my @sucs;
my $fullexpr = "[";
open CONFFILE, "<$conffile";
while (<CONFFILE>) {
sub processURL {
my $url = shift;
$url =~ s/\/$//;
print "obtaining list of Nix archives at $url...\n";
chomp;
if (/^\s*(\S+)\s*(\#.*)?$/) {
my $url = $1;
$url =~ s/\/$//;
print "obtaining list of Nix archives at $url...\n";
system "wget --cache=off '$url'/MANIFEST -O '$manifest' 2> /dev/null"; # !!! escape
if ($?) { die "`wget' failed"; }
system "wget --cache=off '$url'/MANIFEST -O '$manifest' 2> /dev/null"; # !!! escape
if ($?) { die "`wget' failed"; }
open MANIFEST, "<$manifest";
open MANIFEST, "<$manifest";
my $inside = 0;
my $inside = 0;
my $storepath;
my $narname;
my $hash;
my @preds;
my $storepath;
my $narname;
my $hash;
my @preds;
while (<MANIFEST>) {
chomp;
s/\#.*$//g;
next if (/^$/);
while (<MANIFEST>) {
chomp;
s/\#.*$//g;
next if (/^$/);
if (!$inside) {
if (/^\{$/) {
$inside = 1;
undef $storepath;
undef $narname;
undef $hash;
@preds = ();
if (!$inside) {
if (/^\{$/) {
$inside = 1;
undef $storepath;
undef $narname;
undef $hash;
@preds = ();
}
else { die "bad line: $_"; }
} else {
if (/^\}$/) {
$inside = 0;
my $fullurl = "$url/$narname";
print "$storepath\n";
else { die "bad line: $_"; }
} else {
if (/^\}$/) {
$inside = 0;
my $fullurl = "$url/$narname";
# print "$storepath\n";
# Construct a Nix expression that fetches and unpacks a
# Nix archive from the network.
my $fetch =
"(import @datadir@/nix/corepkgs/fetchurl) " .
"{url = $fullurl; md5 = \"$hash\"; system = \"@host@\"}";
my $nixexpr =
"((import @datadir@/nix/corepkgs/nar/unnar.nix) " .
"{narFile = ($fetch); outPath = \"$storepath\"; system = \"@host@\"}) ";
$fullexpr .= $nixexpr; # !!! O(n^2)?
# Construct a Nix expression that fetches and unpacks a
# Nix archive from the network.
my $fetch =
"(import @datadir@/nix/corepkgs/fetchurl) " .
"{url = $fullurl; md5 = \"$hash\"; system = \"@host@\"}";
my $nixexpr =
"((import @datadir@/nix/corepkgs/nar/unnar.nix) " .
"{narFile = ($fetch); outPath = \"$storepath\"; system = \"@host@\"}) ";
$fullexpr .= $nixexpr; # !!! O(n^2)?
push @srcpaths, $storepath;
push @srcpaths, $storepath;
foreach my $p (@preds) {
push @sucs, $p;
push @sucs, $storepath;
}
foreach my $p (@preds) {
push @sucs, $p;
push @sucs, $storepath;
}
}
elsif (/^\s*StorePath:\s*(\/\S+)\s*$/) {
$storepath = $1;
}
elsif (/^\s*NarName:\s*(\S+)\s*$/) {
$narname = $1;
}
elsif (/^\s*MD5:\s*(\S+)\s*$/) {
$hash = $1;
}
elsif (/^\s*SuccOf:\s*(\/\S+)\s*$/) {
push @preds, $1;
}
else { die "bad line: $_"; }
}
elsif (/^\s*StorePath:\s*(\/\S+)\s*$/) {
$storepath = $1;
}
elsif (/^\s*NarName:\s*(\S+)\s*$/) {
$narname = $1;
}
elsif (/^\s*MD5:\s*(\S+)\s*$/) {
$hash = $1;
}
elsif (/^\s*SuccOf:\s*(\/\S+)\s*$/) {
push @preds, $1;
}
else { die "bad line: $_"; }
}
close MANIFEST;
}
close MANIFEST;
}
# Obtain URLs either from the command line or from a configuration file.
if (scalar @ARGV > 0) {
while (@ARGV) {
my $url = shift @ARGV;
processURL $url;
}
} else {
open CONFFILE, "<$conffile";
while (<CONFFILE>) {
chomp;
if (/^\s*(\S+)\s*(\#.*)?$/) {
my $url = $1;
processURL $url;
}
}
close CONFFILE;
}
$fullexpr .= "]";