* Improved prototype.

svn path=/nixpkgs/trunk/; revision=447
This commit is contained in:
Eelco Dolstra 2003-10-31 13:12:20 +00:00
parent 55161eff7c
commit 33f773c97a
4 changed files with 81 additions and 1 deletions

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(import ./.) { system = "i686-suse-linux" }
(import ./user-environment.fix) { system = "i686-suse-linux" }

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#! /usr/bin/perl -w
use strict;
use Cwd;
my $selfdir = $ENV{"out"};
mkdir "$selfdir", 0755 || die "error creating $selfdir";
# For each activated package, create symlinks.
sub createLinks {
my $srcdir = shift;
my $dstdir = shift;
my @srcfiles = glob("$srcdir/*");
foreach my $srcfile (@srcfiles) {
my $basename = $srcfile;
$basename =~ s/^.*\///g; # strip directory
my $dstfile = "$dstdir/$basename";
if ($srcfile =~ /\/envpkgs$/) {
} elsif (-d $srcfile) {
# !!! hack for resolving name clashes
if (!-e $dstfile) {
mkdir $dstfile, 0755 ||
die "error creating directory $dstfile";
}
-d $dstfile or die "$dstfile is not a directory";
createLinks($srcfile, $dstfile);
} elsif (-l $dstfile) {
my $target = readlink($dstfile);
die "collission between $srcfile and $target";
} else {
# print "linking $dstfile to $srcfile\n";
symlink($srcfile, $dstfile) ||
die "error creating link $dstfile";
}
}
}
my %done;
sub addPkg {
my $pkgdir = shift;
return if (defined $done{$pkgdir});
$done{$pkgdir} = 1;
print "merging $pkgdir\n";
createLinks("$pkgdir", "$selfdir");
# if (-f "$pkgdir/envpkgs") {
# my $envpkgs = `cat $pkgdir/envpkgs`;
# chomp $envpkgs;
# my @envpkgs = split / +/, $envpkgs;
# foreach my $envpkg (@envpkgs) {
# addPkg($envpkg);
# }
# }
}
foreach my $name (keys %ENV) {
next unless $name =~ /^act.*$/;
my $pkgdir = $ENV{$name};
next unless $pkgdir =~ /^\//;
addPkg($pkgdir);
}

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{system}: derivation
{ name = "user-environment"
, system = system
, builder = ./populate-linkdirs.pl
, pkgs =
[ ((import ./all-packages.fix) {system = system}).aterm
]
}