+my $nofib = 0;
+my $testsuite = 0;
+
+sub message {
+ if ($verbose) {
+ print "@_\n";
+ }
+}
+
+sub warning {
+ print "warning: @_\n";
+}
+
+sub darcs {
+ message "== running darcs @_";
+ system ("darcs", @_) == 0
+ or $ignore_failure
+ or die "darcs failed: $?";
+}
+
+sub darcsall {
+ darcs @_;
+ for my $dir (@top_dirs) {
+ if (-d $dir && -d "$dir/_darcs") {
+ darcs (@_, "--repodir", $dir);
+ }
+ else {
+ message "== $dir not present or not a repository; skipping";
+ }
+ }
+ for my $pkg (`cat libraries/core-packages libraries/extra-packages`) {
+ chomp $pkg;
+ if (-d "libraries/$pkg") {
+ darcs (@_, "--repodir", "libraries/$pkg");
+ }
+ else {
+ warning("$pkg doesn't exist, use 'darcs-all get' to get it");
+ }
+ }
+}
+
+sub darcsgetpackage {
+ my ($get_it, $r_flags, $repo_root, $package) = @_;
+
+ if ($get_it) {
+ if (-d $package) {
+ warning("$package already present; omitting");
+ }
+ else {
+ darcs (@$r_flags, "$repo_root/$package");
+ }
+ }
+}
+
+sub darcsget {
+ my $r_flags;
+ if (! grep /(?:--complete|--partial)/, @_) {
+ warning("adding --partial, to override use --complete");
+ $r_flags = [@_, "--partial"];
+ }
+ else {
+ $r_flags = \@_;
+ }
+
+ darcsgetpackage($nofib, $r_flags, $defaultrepo_base, "nofib");
+ darcsgetpackage($testsuite, $r_flags, $defaultrepo_base, "testsuite");
+
+ chdir "libraries";
+
+ my @packages;
+ if ($extra) {
+ @packages = `cat core-packages extra-packages`;
+ }
+ else {
+ @packages = `cat core-packages`;
+ }
+
+ for my $pkg (@packages) {
+ chomp $pkg;
+ darcsgetpackage(1, $r_flags, $defaultrepo_lib, $pkg);
+ }
+}
+
+sub main {
+ if (! -d "_darcs" || ! -d "compiler") {
+ die "error: darcs-all must be run from the top level of the ghc tree."
+ }
+
+ while ($#_ ne -1) {
+ my $arg = shift;
+ # We handle -q here as well as lower down as we need to skip over it
+ # if it comes before the darcs command
+ if ($arg eq "-q") {
+ $verbose = 0;
+ }
+ elsif ($arg eq "--extra") {
+ $extra = 1;
+ }
+ elsif ($arg eq "--nofib") {
+ $nofib = 1;
+ }
+ elsif ($arg eq "--testsuite") {
+ $testsuite = 1;
+ }
+ else {
+ unshift @_, $arg;
+ if (grep /^-q$/, @_) {
+ $verbose = 0;
+ }
+ last;
+ }
+ }
+
+ if ($#_ eq -1) {
+ die "What do you want to do?";
+ }
+ my $command = $_[0];
+ if ($command eq "get") {
+ darcsget @_;
+ }
+ else {
+ if ($command =~ /^(?:w|wh|wha|what|whats|whatsn|whatsne|whatsnew)$/) {
+ # Hack around whatsnew failing if there are no changes
+ $ignore_failure = 1;
+ }
+ darcsall @_;
+ }
+}
+
+main(@ARGV);
+