rebase to ghc main repo

[ghc-hetmet.git] / boot

diff --git a/boot b/boot
index 339f21d..f47bdf6 100644 (file)
--- a/boot
+++ b/boot
@@ -4,10 +4,26 @@ use strict;
 
 use Cwd;
 
+my %required_tag;
+
+$required_tag{"-"} = 1;
+
+while ($#ARGV ne -1) {
+    my $arg = shift @ARGV;
+
+    if ($arg =~ /^--required-tag=(.*)/) {
+        $required_tag{$1} = 1;
+    }
+    else {
+        die "Bad arg: $arg";
+    }
+}
+
 # Create libraries/*/{ghc.mk,GNUmakefile}
 system("/usr/bin/perl", "-w", "boot-pkgs") == 0
     or die "Running boot-pkgs failed: $?";
 
+my $tag;
 my $dir;
 my $curdir;
 
@@ -20,21 +36,22 @@ while (<PACKAGES>) {
     if (/^#/) {
         # Comment; do nothing
     }
-    elsif (/^([a-zA-Z0-9\/.-]+) *[^ ]+ *[^ ]+$/) {
+    elsif (/^([a-zA-Z0-9\/.-]+) +([^ ]+) +[^ ]+ +[^ ]+ +[^ ]+$/) {
         $dir = $1;
+        $tag = $2;
         
-        # We would like to just check for an _darcs directory here, but in
-        # an lndir tree we avoid making _darcs directories, so it doesn't
-        # exist. We therefore require that every repo has a LICENSE file
-        # instead.
-        if (! -f "$dir/LICENSE") {
-            print STDERR "Error: $dir/LICENSE doesn't exist.\n";
-            die "Maybe you haven't done './darcs-all get'?";
-        }
-    }
-    elsif (/^([a-zA-Z0-9\/.-]+) *[^ ]+ *[^ ]+ *[^ ]+$/) {
-        # These are lines which refer to optional repositories, so their
+        # If $tag is not "-" then it is an optional repository, so its
         # absence isn't an error.
+        if (defined($required_tag{$tag})) {
+            # We would like to just check for an _darcs directory here,
+            # but in an lndir tree we avoid making _darcs directories,
+            # so it doesn't exist. We therefore require that every repo
+            # has a LICENSE file instead.
+            if (! -f "$dir/LICENSE") {
+                print STDERR "Error: $dir/LICENSE doesn't exist.\n";
+                die "Maybe you haven't done './darcs-all get'?";
+            }
+        }
     }
     else {
         die "Bad line in packages file: $_";
@@ -55,6 +72,8 @@ foreach $dir (".", glob("libraries/*/")) {
 
 # Alas, darcs doesn't handle file permissions, so fix a few of them.
 for my $file ("boot", "darcs-all", "validate") {
-    chmod 0755, $file if -f $file
-        or die "Can't chmod 0755 $file: $!";
+    if (-f $file) {
+        chmod 0755, $file
+            or die "Can't chmod 0755 $file: $!";
+    }
 }