#! @perl@ -w use strict; use File::Temp qw(tempdir); use Nix::Config; sub usageError { print STDERR <<EOF; Usage: nix-install-package (FILE | --url URL) Install a Nix Package (.nixpkg) either directly from FILE or by downloading it from URL. Flags: --profile / -p LINK: install into the specified profile --non-interactive: don't run inside a new terminal EOF ; # ' exit 1; } # Parse the command line arguments. my @args = @ARGV; usageError if scalar @args == 0; my $source; my $fromURL = 0; my @extraNixEnvArgs = (); my $interactive = 1; while (scalar @args) { my $arg = shift @args; if ($arg eq "--help") { usageError; } elsif ($arg eq "--url") { $fromURL = 1; } elsif ($arg eq "--profile" || $arg eq "-p") { my $profile = shift @args; usageError if !defined $profile; push @extraNixEnvArgs, "-p", $profile; } elsif ($arg eq "--non-interactive") { $interactive = 0; } else { $source = $arg; } } usageError unless defined $source; # Re-execute in a terminal, if necessary, so that if we're executed # from a web browser, the user gets to see us. if ($interactive && !defined $ENV{"NIX_HAVE_TERMINAL"}) { $ENV{"NIX_HAVE_TERMINAL"} = "1"; $ENV{"LD_LIBRARY_PATH"} = ""; foreach my $term ("xterm", "konsole", "gnome-terminal", "xterm") { exec($term, "-e", "$Nix::Config::binDir/nix-install-package", @ARGV); } die "cannot execute `xterm'"; } my $tmpDir = tempdir("nix-install-package.XXXXXX", CLEANUP => 1, TMPDIR => 1) or die "cannot create a temporary directory"; sub barf { my $msg = shift; print "$msg\n"; <STDIN> if $interactive; exit 1; } # Download the package description, if necessary. my $pkgFile = $source; if ($fromURL) { $pkgFile = "$tmpDir/tmp.nixpkg"; system("@curl@", "--silent", $source, "-o", $pkgFile) == 0 or barf "curl failed: $?"; } # Read and parse the package file. open PKGFILE, "<$pkgFile" or barf "cannot open `$pkgFile': $!"; my $contents = <PKGFILE>; close PKGFILE; my $urlRE = "(?: [a-zA-Z][a-zA-Z0-9\+\-\.]*\:[a-zA-Z0-9\%\/\?\:\@\&\=\+\$\,\-\_\.\!\~\*\']+ )"; my $nameRE = "(?: [A-Za-z0-9\+\-\.\_\?\=]+ )"; # see checkStoreName() my $systemRE = "(?: [A-Za-z0-9\+\-\_]+ )"; my $pathRE = "(?: \/ [\/A-Za-z0-9\+\-\.\_\?\=]* )"; # Note: $pathRE doesn't check that whether we're looking at a valid # store path. We'll let nix-env do that. $contents =~ / ^ \s* (\S+) \s+ ($urlRE) \s+ ($nameRE) \s+ ($systemRE) \s+ ($pathRE) \s+ ($pathRE) /x or barf "invalid package contents"; my $version = $1; my $manifestURL = $2; my $drvName = $3; my $system = $4; my $drvPath = $5; my $outPath = $6; barf "invalid package version `$version'" unless $version eq "NIXPKG1"; if ($interactive) { # Ask confirmation. print "Do you want to install `$drvName' (Y/N)? "; my $reply = <STDIN>; chomp $reply; exit if $reply ne "y" && $reply ne "Y"; } # Store the manifest in the temporary directory so that we don't # pollute /nix/var/nix/manifests. This also requires that we don't # use the Nix daemon (because otherwise download-using-manifests won't # see our NIX_MANIFESTS_DIRS environment variable). $ENV{NIX_MANIFESTS_DIR} = $tmpDir; $ENV{NIX_REMOTE} = ""; print "\nPulling manifests...\n"; system("$Nix::Config::binDir/nix-pull", $manifestURL) == 0 or barf "nix-pull failed: $?"; print "\nInstalling package...\n"; system("$Nix::Config::binDir/nix-env", "--install", $outPath, "--force-name", $drvName, @extraNixEnvArgs) == 0 or barf "nix-env failed: $?"; if ($interactive) { print "\nInstallation succeeded! Press Enter to continue.\n"; <STDIN>; }