forked from lix-project/lix
![Eelco Dolstra](/assets/img/avatar_default.png)
by the build farm. See e.g., http://catamaran.labs.cs.uu.nl/dist/nixpkgs-0.8/nixpkgs-0.7pre2302/; the user can click on packages, and they will be installed (assuming the `application/nix-package' MIME type has been associated with `nix-install-package'). Nix expressions are no longer involved: a "package" is just a pointer to a manifest, and the top-level store derivation to be added to the user environment. This makes these packages independent from Nix expression evolution. Note that we install the store derivation ($drvPath), not the resulting output path ($outPath). This is equivalent, except that installing the derivation maintains the back-link from the output path to the derivation that built it. This is useful for maintenance. * Automatically re-exec in an xterm so that the user sees something when `nix-install-package' is run from a browser.
51 lines
1.2 KiB
Plaintext
51 lines
1.2 KiB
Plaintext
#! @perl@ -w
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use strict;
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use POSIX qw(tmpnam);
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my $pkgFile = $ARGV[0];
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die unless defined $pkgFile;
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# Re-execute in a terminal, if necessary, so that if we're executed
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# from a web browser, the user gets to see us.
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if (!defined $ENV{"NIX_HAVE_TERMINAL"}) {
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$ENV{"NIX_HAVE_TERMINAL"} = "1";
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exec("xterm", "-e", "@bindir@/nix-install-package", "$pkgFile");
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die "cannot execute `xterm'";
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}
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# Read and parse the package file.
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open PKGFILE, "<$pkgFile" or die "cannot open `$pkgFile': $!";
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my $contents = <PKGFILE>;
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close PKGFILE;
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$contents =~ /^\s*(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)/ or die "invalid package contents";
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my $version = $1;
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my $manifestURL = $2;
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my $drvName = $3;
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my $system = $4;
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my $drvPath = $5;
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my $outPath = $6;
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die "invalid package version `$version'" unless $version eq "NIXPKG1";
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# Ask confirmation.
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print "Do you want to install `$drvName' (Y/N)? ";
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my $reply = <STDIN>;
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chomp $reply;
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exit if $reply ne "y" && $reply ne "Y";
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print "\nPulling manifests...\n";
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system "@bindir@/nix-pull '$manifestURL'";
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die if $? != 0;
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print "\nInstalling package...\n";
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system "@bindir@/nix-env -i '$drvPath'";
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die if $? != 0;
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print "\nInstallation succeeded! Press Enter to continue.\n";
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<STDIN>;
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