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* `nix-install-package --url': install from a URL (NIX-12).

Browse source 
* `nix-install-package --help' (NIX-9).
* `nix-install-package --non-interactive': don't prompt or pause.
* Tests for nix-install-package.
* Security fixes: filter the values obtained from the nixpkg.
This commit is contained in:
Eelco Dolstra 2006-09-21 18:54:08 +00:00
parent 4e91d8621f
commit 0bd5eb71a0
10 changed files with 152 additions and 37 deletions
Download patch file Download diff file Expand all files Collapse all files

124
scripts/nix-install-package.in
View file

@ -3,28 +3,107 @@
use strict;
use POSIX qw(tmpnam);
my $pkgFile = $ARGV[0];
die unless defined $pkgFile;
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 XXX
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 (!defined $ENV{"NIX_HAVE_TERMINAL"}) {
if ($interactive && !defined $ENV{"NIX_HAVE_TERMINAL"}) {
$ENV{"NIX_HAVE_TERMINAL"} = "1";
$ENV{"LD_LIBRARY_PATH"} = "";
foreach my $term ("konsole", "gnome-terminal", "xterm") {
exec($term, "-e", "@shell@", "-c", "@bindir@/nix-install-package '$pkgFile' || read");
foreach my $term ("xterm", "konsole", "gnome-terminal", "xterm") {
exec($term, "-e", "@bindir@/nix-install-package", @ARGV);
}
die "cannot execute `xterm'";
}
my $tmpDir;
do { $tmpDir = tmpnam(); }
until mkdir $tmpDir, 0777;
END { if (defined $tmpDir) { my $x = $?; system ("@coreutils@/rm", "-rf", $tmpDir); $? = $x; } }
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 die "cannot open `$pkgFile': $!";
open PKGFILE, "<$pkgFile" or barf "cannot open `$pkgFile': $!";
my $contents = <PKGFILE>;
close PKGFILE;
$contents =~ /^\s*(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)/ or die "invalid package contents";
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;
@ -32,22 +111,29 @@ my $system = $4;
my $drvPath = $5;
my $outPath = $6;
die "invalid package version `$version'" unless $version eq "NIXPKG1";
barf "invalid package version `$version'" unless $version eq "NIXPKG1";
# Ask confirmation.
print "Do you want to install `$drvName' (Y/N)? ";
my $reply = <STDIN>;
chomp $reply;
exit if $reply ne "y" && $reply ne "Y";
if ($interactive) {
# Ask confirmation.
print "Do you want to install `$drvName' (Y/N)? ";
my $reply = <STDIN>;
chomp $reply;
exit if $reply ne "y" && $reply ne "Y";
}
print "\nPulling manifests...\n";
system "@bindir@/nix-pull '$manifestURL'";
die if $? != 0;
system ("@bindir@/nix-pull", $manifestURL) == 0
or barf "nix-pull failed: $?";
print "\nInstalling package...\n";
system "@bindir@/nix-env -i '$outPath'";
die if $? != 0;
system ("@bindir@/nix-env", "--install", $outPath, @extraNixEnvArgs) == 0
or barf "nix-env failed: $?";
print "\nInstallation succeeded! Press Enter to continue.\n";
<STDIN>;
if ($interactive) {
print "\nInstallation succeeded! Press Enter to continue.\n";
<STDIN>;
}