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Add resolve-system-dependencies.pl
This commit is contained in:
parent
15c7a79ed3
commit
ff6953cb03
17
configure.ac
17
configure.ac
@ -261,6 +261,23 @@ AC_MSG_RESULT(yes)
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AC_SUBST(perlFlags)
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# Check for otool, an optional dependency on Darwin.
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AC_PATH_PROG(otool, otool)
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AC_MSG_CHECKING([that otool works])
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case $host_os in
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darwin*)
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if test -z "$otool" || ! $otool --version 2>/dev/null; then
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AC_MSG_RESULT(no)
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AC_MSG_ERROR([Can't get version from otool; do you need to install developer tools?])
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fi
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AC_MSG_RESULT(yes)
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;;
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*)
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AC_MSG_RESULT(not needed)
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;;
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esac
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# Whether to build the Perl bindings
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AC_MSG_CHECKING([whether to build the Perl bindings])
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AC_ARG_ENABLE(perl-bindings, AC_HELP_STRING([--enable-perl-bindings],
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@ -17,6 +17,7 @@ nix_substituters := \
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nix_noinst_scripts := \
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$(d)/build-remote.pl \
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$(d)/find-runtime-roots.pl \
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$(d)/resolve-system-dependencies.pl \
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$(d)/nix-http-export.cgi \
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$(d)/nix-profile.sh \
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$(d)/nix-reduce-build \
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@ -29,6 +30,7 @@ profiledir = $(sysconfdir)/profile.d
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$(eval $(call install-file-as, $(d)/nix-profile.sh, $(profiledir)/nix.sh, 0644))
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$(eval $(call install-program-in, $(d)/find-runtime-roots.pl, $(libexecdir)/nix))
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$(eval $(call install-program-in, $(d)/build-remote.pl, $(libexecdir)/nix))
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$(eval $(call install-program-in, $(d)/resolve-system-dependencies.pl, $(libexecdir)/nix))
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$(foreach prog, $(nix_substituters), $(eval $(call install-program-in, $(prog), $(libexecdir)/nix/substituters)))
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$(eval $(call install-symlink, nix-build, $(bindir)/nix-shell))
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123
scripts/resolve-system-dependencies.pl.in
Executable file
123
scripts/resolve-system-dependencies.pl.in
Executable file
@ -0,0 +1,123 @@
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#! @perl@ -w @perlFlags@
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use utf8;
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use strict;
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use warnings;
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use Cwd qw(realpath);
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use File::Basename qw(dirname);
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use File::Path qw(make_path);
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use File::Spec::Functions qw(catfile);
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use List::Util qw(reduce);
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use IPC::Open3;
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use Nix::Config;
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use Nix::Store qw(derivationFromPath);
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use POSIX qw(uname);
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use Storable qw(lock_retrieve lock_store);
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my ($sysname, undef, $version, undef, $machine) = uname;
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$sysname =~ /Darwin/ or die "This tool is only meant to be used on Darwin systems.";
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my $cache = "$Nix::Config::stateDir/dependency-maps/$machine-$sysname-$version.map";
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make_path dirname($cache);
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our $DEPS;
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eval {
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$DEPS = lock_retrieve($cache);
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} or do {
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lock_store {}, $cache;
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$DEPS = {};
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};
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sub mkset(@) {
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my %set;
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@set{@_} = ();
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\%set
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}
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sub union($$) {
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my ($set1, $set2) = @_;
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my $new = {};
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foreach my $key (keys %$set1) {
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$new->{$key} = $set1->{$key};
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}
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foreach my $key (keys %$set2) {
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$new->{$key} = $set2->{$key};
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}
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$new
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}
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sub cache_filepath($) {
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my $fp = shift;
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$fp =~ s/-/--/g;
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$fp =~ s/\//-/g;
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$fp =~ s/^-//g;
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catfile $cache, $fp
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}
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sub resolve_tree {
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sub resolve_tree_inner {
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my ($lib, $TREE) = @_;
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return if (defined $TREE->{$lib});
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$TREE->{$lib} = mkset(@{cache_get($lib)});
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foreach my $dep (keys %{$TREE->{$lib}}) {
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resolve_tree_inner($dep, $TREE);
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}
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values %$TREE
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}
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reduce { union($a, $b) } {}, resolve_tree_inner(@_)
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}
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sub cache_get {
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my $key = shift;
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if (defined $DEPS->{$key}) {
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$DEPS->{$key}
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} else {
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cache_insert($key);
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cache_get($key)
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}
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}
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sub cache_insert($) {
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my $key = shift;
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print STDERR "Finding dependencies for $key...\n";
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my @deps = find_deps($key);
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$DEPS->{$key} = \@deps;
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}
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sub find_deps($) {
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my $lib = shift;
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my($chld_in, $chld_out, $chld_err);
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my $pid = open3($chld_in, $chld_out, $chld_err, "@otool@", "-L", "-arch", "x86_64", $lib);
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waitpid($pid, 0);
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my $line = readline $chld_out;
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if($? == 0 and $line !~ /not an object file/) {
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my @libs;
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while(<$chld_out>) {
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my $dep = (split /\s+/)[1];
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push @libs, $dep unless $dep eq $lib or $dep =~ /\@rpath/;
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}
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@libs
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} elsif (-l $lib) {
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(realpath($lib))
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} else {
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()
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}
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}
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if (defined $ARGV[0]) {
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my $deps = derivationFromPath($ARGV[0])->{"env"}->{"__impureHostDeps"};
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if (defined $deps) {
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my @files = split(/\s+/, $deps);
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my $depcache = {};
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my $depset = reduce { union($a, $b) } (map { resolve_tree($_, $depcache) } @files);
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print "extra-chroot-dirs\n";
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print join("\n", keys %$depset);
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print "\n\n";
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}
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lock_store($DEPS, $cache);
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} else {
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print STDERR "Usage: $0 path/to/derivation.drv\n";
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exit 1
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}
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@ -60,9 +60,11 @@
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#if __APPLE__
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#define SANDBOX_ENABLED 1
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#define DEFAULT_ALLOWED_IMPURE_PREFIXES "/System/Library /usr /dev /bin/sh"
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#define DARWIN_PREBUILD 1
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#else
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#define SANDBOX_ENABLED 0
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#define DEFAULT_ALLOWED_IMPURE_PREFIXES "/bin" "/usr/bin"
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#define DARWIN_PREBUILD 0
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#endif
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#if CHROOT_ENABLED
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@ -2045,6 +2047,11 @@ void DerivationGoal::startBuilder()
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}
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}
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#if DARWIN_PREBUILD
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if (settings.preBuildHook == "")
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settings.preBuildHook = settings.nixLibexecDir + "/nix/resolve-system-dependencies.pl";
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#endif
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if (settings.preBuildHook != "") {
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printMsg(lvlChatty, format("executing pre-build hook ‘%1%’")
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% settings.preBuildHook);
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@ -33,4 +33,4 @@ $(d)/local-store.cc: $(d)/schema.sql.hh
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clean-files += $(d)/schema.sql.hh
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$(eval $(call install-file-in, $(d)/nix-store.pc, $(prefix)/lib/pkgconfig, 0644))
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$(eval $(call install-file-in, $(d)/sandbox-defaults.sb, $(prefix)/share/nix, 0644))
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$(eval $(call install-file-in, $(d)/sandbox-defaults.sb, $(datadir)/nix, 0644))
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