Add resolve-system-dependencies.pl

This commit is contained in:
Jude Taylor 2015-10-21 12:38:45 -07:00
parent 15c7a79ed3
commit ff6953cb03
5 changed files with 150 additions and 1 deletions

View file

@ -261,6 +261,23 @@ AC_MSG_RESULT(yes)
AC_SUBST(perlFlags) AC_SUBST(perlFlags)
# Check for otool, an optional dependency on Darwin.
AC_PATH_PROG(otool, otool)
AC_MSG_CHECKING([that otool works])
case $host_os in
darwin*)
if test -z "$otool" || ! $otool --version 2>/dev/null; then
AC_MSG_RESULT(no)
AC_MSG_ERROR([Can't get version from otool; do you need to install developer tools?])
fi
AC_MSG_RESULT(yes)
;;
*)
AC_MSG_RESULT(not needed)
;;
esac
# Whether to build the Perl bindings # Whether to build the Perl bindings
AC_MSG_CHECKING([whether to build the Perl bindings]) AC_MSG_CHECKING([whether to build the Perl bindings])
AC_ARG_ENABLE(perl-bindings, AC_HELP_STRING([--enable-perl-bindings], AC_ARG_ENABLE(perl-bindings, AC_HELP_STRING([--enable-perl-bindings],

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@ -17,6 +17,7 @@ nix_substituters := \
nix_noinst_scripts := \ nix_noinst_scripts := \
$(d)/build-remote.pl \ $(d)/build-remote.pl \
$(d)/find-runtime-roots.pl \ $(d)/find-runtime-roots.pl \
$(d)/resolve-system-dependencies.pl \
$(d)/nix-http-export.cgi \ $(d)/nix-http-export.cgi \
$(d)/nix-profile.sh \ $(d)/nix-profile.sh \
$(d)/nix-reduce-build \ $(d)/nix-reduce-build \
@ -29,6 +30,7 @@ profiledir = $(sysconfdir)/profile.d
$(eval $(call install-file-as, $(d)/nix-profile.sh, $(profiledir)/nix.sh, 0644)) $(eval $(call install-file-as, $(d)/nix-profile.sh, $(profiledir)/nix.sh, 0644))
$(eval $(call install-program-in, $(d)/find-runtime-roots.pl, $(libexecdir)/nix)) $(eval $(call install-program-in, $(d)/find-runtime-roots.pl, $(libexecdir)/nix))
$(eval $(call install-program-in, $(d)/build-remote.pl, $(libexecdir)/nix)) $(eval $(call install-program-in, $(d)/build-remote.pl, $(libexecdir)/nix))
$(eval $(call install-program-in, $(d)/resolve-system-dependencies.pl, $(libexecdir)/nix))
$(foreach prog, $(nix_substituters), $(eval $(call install-program-in, $(prog), $(libexecdir)/nix/substituters))) $(foreach prog, $(nix_substituters), $(eval $(call install-program-in, $(prog), $(libexecdir)/nix/substituters)))
$(eval $(call install-symlink, nix-build, $(bindir)/nix-shell)) $(eval $(call install-symlink, nix-build, $(bindir)/nix-shell))

View file

@ -0,0 +1,123 @@
#! @perl@ -w @perlFlags@
use utf8;
use strict;
use warnings;
use Cwd qw(realpath);
use File::Basename qw(dirname);
use File::Path qw(make_path);
use File::Spec::Functions qw(catfile);
use List::Util qw(reduce);
use IPC::Open3;
use Nix::Config;
use Nix::Store qw(derivationFromPath);
use POSIX qw(uname);
use Storable qw(lock_retrieve lock_store);
my ($sysname, undef, $version, undef, $machine) = uname;
$sysname =~ /Darwin/ or die "This tool is only meant to be used on Darwin systems.";
my $cache = "$Nix::Config::stateDir/dependency-maps/$machine-$sysname-$version.map";
make_path dirname($cache);
our $DEPS;
eval {
$DEPS = lock_retrieve($cache);
} or do {
lock_store {}, $cache;
$DEPS = {};
};
sub mkset(@) {
my %set;
@set{@_} = ();
\%set
}
sub union($$) {
my ($set1, $set2) = @_;
my $new = {};
foreach my $key (keys %$set1) {
$new->{$key} = $set1->{$key};
}
foreach my $key (keys %$set2) {
$new->{$key} = $set2->{$key};
}
$new
}
sub cache_filepath($) {
my $fp = shift;
$fp =~ s/-/--/g;
$fp =~ s/\//-/g;
$fp =~ s/^-//g;
catfile $cache, $fp
}
sub resolve_tree {
sub resolve_tree_inner {
my ($lib, $TREE) = @_;
return if (defined $TREE->{$lib});
$TREE->{$lib} = mkset(@{cache_get($lib)});
foreach my $dep (keys %{$TREE->{$lib}}) {
resolve_tree_inner($dep, $TREE);
}
values %$TREE
}
reduce { union($a, $b) } {}, resolve_tree_inner(@_)
}
sub cache_get {
my $key = shift;
if (defined $DEPS->{$key}) {
$DEPS->{$key}
} else {
cache_insert($key);
cache_get($key)
}
}
sub cache_insert($) {
my $key = shift;
print STDERR "Finding dependencies for $key...\n";
my @deps = find_deps($key);
$DEPS->{$key} = \@deps;
}
sub find_deps($) {
my $lib = shift;
my($chld_in, $chld_out, $chld_err);
my $pid = open3($chld_in, $chld_out, $chld_err, "@otool@", "-L", "-arch", "x86_64", $lib);
waitpid($pid, 0);
my $line = readline $chld_out;
if($? == 0 and $line !~ /not an object file/) {
my @libs;
while(<$chld_out>) {
my $dep = (split /\s+/)[1];
push @libs, $dep unless $dep eq $lib or $dep =~ /\@rpath/;
}
@libs
} elsif (-l $lib) {
(realpath($lib))
} else {
()
}
}
if (defined $ARGV[0]) {
my $deps = derivationFromPath($ARGV[0])->{"env"}->{"__impureHostDeps"};
if (defined $deps) {
my @files = split(/\s+/, $deps);
my $depcache = {};
my $depset = reduce { union($a, $b) } (map { resolve_tree($_, $depcache) } @files);
print "extra-chroot-dirs\n";
print join("\n", keys %$depset);
print "\n\n";
}
lock_store($DEPS, $cache);
} else {
print STDERR "Usage: $0 path/to/derivation.drv\n";
exit 1
}

View file

@ -60,9 +60,11 @@
#if __APPLE__ #if __APPLE__
#define SANDBOX_ENABLED 1 #define SANDBOX_ENABLED 1
#define DEFAULT_ALLOWED_IMPURE_PREFIXES "/System/Library /usr /dev /bin/sh" #define DEFAULT_ALLOWED_IMPURE_PREFIXES "/System/Library /usr /dev /bin/sh"
#define DARWIN_PREBUILD 1
#else #else
#define SANDBOX_ENABLED 0 #define SANDBOX_ENABLED 0
#define DEFAULT_ALLOWED_IMPURE_PREFIXES "/bin" "/usr/bin" #define DEFAULT_ALLOWED_IMPURE_PREFIXES "/bin" "/usr/bin"
#define DARWIN_PREBUILD 0
#endif #endif
#if CHROOT_ENABLED #if CHROOT_ENABLED
@ -2045,6 +2047,11 @@ void DerivationGoal::startBuilder()
} }
} }
#if DARWIN_PREBUILD
if (settings.preBuildHook == "")
settings.preBuildHook = settings.nixLibexecDir + "/nix/resolve-system-dependencies.pl";
#endif
if (settings.preBuildHook != "") { if (settings.preBuildHook != "") {
printMsg(lvlChatty, format("executing pre-build hook %1%") printMsg(lvlChatty, format("executing pre-build hook %1%")
% settings.preBuildHook); % settings.preBuildHook);

View file

@ -33,4 +33,4 @@ $(d)/local-store.cc: $(d)/schema.sql.hh
clean-files += $(d)/schema.sql.hh clean-files += $(d)/schema.sql.hh
$(eval $(call install-file-in, $(d)/nix-store.pc, $(prefix)/lib/pkgconfig, 0644)) $(eval $(call install-file-in, $(d)/nix-store.pc, $(prefix)/lib/pkgconfig, 0644))
$(eval $(call install-file-in, $(d)/sandbox-defaults.sb, $(prefix)/share/nix, 0644)) $(eval $(call install-file-in, $(d)/sandbox-defaults.sb, $(datadir)/nix, 0644))