Add a fixity environment to InteractiveContext (#2947)
[ghc.git] / boot
diff --git a/boot b/boot
index 66bff3e..5d0973d 100755 (executable)
--- a/boot
+++ b/boot
@@ -3,13 +3,19 @@
 use strict;
 
 use Cwd;
+use File::Path 'rmtree';
+use File::Basename;
 
 my %required_tag;
 my $validate;
+my $curdir;
 
 $required_tag{"-"} = 1;
 $validate = 0;
 
+$curdir = &cwd()
+    or die "Can't find current directory: $!";
+
 while ($#ARGV ne -1) {
     my $arg = shift @ARGV;
 
@@ -24,7 +30,7 @@ while ($#ARGV ne -1) {
     }
 }
 
-{
+sub sanity_check_line_endings {
     local $/ = undef;
     open FILE, "packages" or die "Couldn't open file: $!";
     binmode FILE;
@@ -42,59 +48,169 @@ EOF
     }
 }
 
-# Create libraries/*/{ghc.mk,GNUmakefile}
-system("/usr/bin/perl", "-w", "boot-pkgs") == 0
-    or die "Running boot-pkgs failed: $?";
+sub sanity_check_tree {
+    my $tag;
+    my $dir;
 
-my $tag;
-my $dir;
-my $curdir;
+    # Check that we have all boot packages.
+    open PACKAGES, "< packages";
+    while (<PACKAGES>) {
+        if (/^#/) {
+            # Comment; do nothing
+        }
+        elsif (/^([a-zA-Z0-9\/.-]+) +([^ ]+) +[^ ]+ +[^ ]+$/) {
+            $dir = $1;
+            $tag = $2;
+
+            # If $tag is not "-" then it is an optional repository, so its
+            # absence isn't an error.
+            if (defined($required_tag{$tag})) {
+                # We would like to just check for a .git directory here,
+                # but in an lndir tree we avoid making .git directories,
+                # so it doesn't exist. We therefore require that every repo
+                # has a LICENSE file instead.
+                if (! -f "$dir/LICENSE") {
+                    print STDERR "Error: $dir/LICENSE doesn't exist.\n";
+                    die "Maybe you haven't done './sync-all get'?";
+                }
+            }
+        }
+        else {
+            die "Bad line in packages file: $_";
+        }
+    }
+    close PACKAGES;
+}
 
-$curdir = &cwd()
-    or die "Can't find current directory: $!";
+# Create libraries/*/{ghc.mk,GNUmakefile}
+sub boot_pkgs {
+    my @library_dirs = ();
+    my @tarballs = glob("libraries/tarballs/*");
+
+    my $tarball;
+    my $package;
+    my $stamp;
+
+    for $tarball (@tarballs) {
+        $package = $tarball;
+        $package =~ s#^libraries/tarballs/##;
+        $package =~ s/-[0-9.]*(-snapshot)?\.tar\.gz$//;
+
+        # Sanity check, so we don't rmtree the wrong thing below
+        if (($package eq "") || ($package =~ m#[/.\\]#)) {
+            die "Bad package name: $package";
+        }
 
-# Check that we have all boot packages.
-open PACKAGES, "< packages";
-while (<PACKAGES>) {
-    if (/^#/) {
-        # Comment; do nothing
+        if (-d "libraries/$package/_darcs") {
+            print "Ignoring libraries/$package as it looks like a darcs checkout\n"
+        }
+        elsif (-d "libraries/$package/.git") {
+            print "Ignoring libraries/$package as it looks like a git checkout\n"
+        }
+        else {
+            if (! -d "libraries/stamp") {
+                mkdir "libraries/stamp";
+            }
+            $stamp = "libraries/stamp/$package";
+            if ((! -d "libraries/$package") || (! -f "$stamp")
+             || ((-M "libraries/stamp/$package") > (-M $tarball))) {
+                print "Unpacking $package\n";
+                if (-d "libraries/$package") {
+                    &rmtree("libraries/$package")
+                        or die "Can't remove libraries/$package: $!";
+                }
+                mkdir "libraries/$package"
+                    or die "Can't create libraries/$package: $!";
+                system ("sh", "-c", "cd 'libraries/$package' && { cat ../../$tarball | gzip -d | tar xf - ; } && mv */* .") == 0
+                    or die "Failed to unpack $package";
+                open STAMP, "> $stamp"
+                    or die "Failed to open stamp file: $!";
+                close STAMP
+                    or die "Failed to close stamp file: $!";
+            }
+        }
     }
-    elsif (/^([a-zA-Z0-9\/.-]+) +([^ ]+) +[^ ]+ +[^ ]+ +[^ ]+$/) {
-        $dir = $1;
-        $tag = $2;
-        
-        # If $tag is not "-" then it is an optional repository, so its
-        # absence isn't an error.
-        if (defined($required_tag{$tag})) {
-            # We would like to just check for a .git directory here,
-            # but in an lndir tree we avoid making .git directories,
-            # so it doesn't exist. We therefore require that every repo
-            # has a LICENSE file instead.
-            if (! -f "$dir/LICENSE") {
-                print STDERR "Error: $dir/LICENSE doesn't exist.\n";
-                die "Maybe you haven't done './sync-all get'?";
+
+    for $package (glob "libraries/*/") {
+        $package =~ s/\/$//;
+        my $pkgs = "$package/ghc-packages";
+        if (-f $pkgs) {
+            open PKGS, "< $pkgs"
+                or die "Failed to open $pkgs: $!";
+            while (<PKGS>) {
+                chomp;
+                s/\r//g;
+                if (/.+/) {
+                    push @library_dirs, "$package/$_";
+                }
             }
         }
+        else {
+            push @library_dirs, $package;
+        }
     }
-    else {
-        die "Bad line in packages file: $_";
+
+    for $package (@library_dirs) {
+        my $dir = &basename($package);
+        my @cabals = glob("$package/*.cabal");
+        if ($#cabals > 0) {
+            die "Too many .cabal file in $package\n";
+        }
+        if ($#cabals eq 0) {
+            my $cabal = $cabals[0];
+            my $pkg;
+            my $top;
+            if (-f $cabal) {
+                $pkg = $cabal;
+                $pkg =~ s#.*/##;
+                $pkg =~ s/\.cabal$//;
+                $top = $package;
+                $top =~ s#[^/]+#..#g;
+                $dir = $package;
+                $dir =~ s#^libraries/##g;
+
+                print "Creating $package/ghc.mk\n";
+                open GHCMK, "> $package/ghc.mk"
+                    or die "Opening $package/ghc.mk failed: $!";
+                print GHCMK "${package}_PACKAGE = ${pkg}\n";
+                print GHCMK "${package}_dist-install_GROUP = libraries\n";
+                print GHCMK "\$(if \$(filter ${dir},\$(PKGS_THAT_BUILD_WITH_STAGE0)),\$(eval \$(call build-package,${package},dist-boot,0)))\n";
+                print GHCMK "\$(eval \$(call build-package,${package},dist-install,\$(if \$(filter ${dir},\$(PKGS_THAT_BUILD_WITH_STAGE2)),2,1)))\n";
+                close GHCMK
+                    or die "Closing $package/ghc.mk failed: $!";
+
+                print "Creating $package/GNUmakefile\n";
+                open GNUMAKEFILE, "> $package/GNUmakefile"
+                    or die "Opening $package/GNUmakefile failed: $!";
+                print GNUMAKEFILE "dir = ${package}\n";
+                print GNUMAKEFILE "TOP = ${top}\n";
+                print GNUMAKEFILE "include \$(TOP)/mk/sub-makefile.mk\n";
+                print GNUMAKEFILE "FAST_MAKE_OPTS += stage=0\n";
+                close GNUMAKEFILE
+                    or die "Closing $package/GNUmakefile failed: $!";
+            }
+        }
     }
 }
-close PACKAGES;
 
 # autoreconf everything that needs it.
-foreach $dir (".", glob("libraries/*/")) {
-    if (-f "$dir/configure.ac") {
-        print "Booting $dir\n";
-        chdir $dir or die "can't change to $dir: $!";
-        system("autoreconf") == 0
-            or die "Running autoreconf failed with exitcode $?";
-        chdir $curdir or die "can't change to $curdir: $!";
+sub autoreconf {
+    my $dir;
+
+    foreach $dir (".", glob("libraries/*/")) {
+        if (-f "$dir/configure.ac") {
+            print "Booting $dir\n";
+            chdir $dir or die "can't change to $dir: $!";
+            system("autoreconf") == 0
+                or die "Running autoreconf failed with exitcode $?";
+            chdir $curdir or die "can't change to $curdir: $!";
+        }
     }
 }
 
-if ($validate eq 0 && ! -f "mk/build.mk") {
-    print <<EOF;
+sub checkBuildMk {
+    if ($validate eq 0 && ! -f "mk/build.mk") {
+        print <<EOF;
 
 WARNING: You don't have a mk/build.mk file.
 
@@ -107,5 +223,12 @@ For information on creating a mk/build.mk file, please see:
     http://hackage.haskell.org/trac/ghc/wiki/Building/Using#Buildconfiguration
 
 EOF
+    }
 }
 
+&sanity_check_line_endings();
+&sanity_check_tree();
+&boot_pkgs();
+&autoreconf();
+&checkBuildMk();
+