Remove .*.d dependency garbage, and use a dedicated build directory

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@11738 e03df62e-2008-0410-955e-edbf42e46eb7

1 files changed, 102 insertions, 76 deletions

diff --git a/make/calcdep.pl b/make/calcdep.pl
index 261b6ec18..1a65f836b 100755
--- a/make/calcdep.pl
+++ b/make/calcdep.pl
@@ -3,16 +3,90 @@ use strict;
 use warnings;
 use Getopt::Long;
 
-my $basesrc = "$ENV{SOURCEPATH}/src";
-my $baseinc = "$ENV{SOURCEPATH}/include";
-my $baseout = `pwd`;
-chomp $baseout;
-chdir $basesrc;
+sub find_output($);
+sub gendep($);
+sub dep_cpp($$);
+sub dep_dir($);
+sub run();
 
 my %f2dep;
 
-sub gendep;
-sub gendep {
+run;
+exit 0;
+
+sub run() {
+	my $build = $ENV{BUILDPATH};
+	mkdir $build;
+	chdir $build or die "Could not open build directory: $!";
+	mkdir 'bin';
+	mkdir 'obj';
+	mkdir 'modules';
+	symlink "$ENV{SOURCEPATH}/include", 'include';
+	$build = `pwd`;
+	chomp $build;
+	open MAKE, '>real.mk' or die "Could not write real.mk: $!";
+	chdir "$ENV{SOURCEPATH}/src";
+
+	print MAKE <<END;
+# DO NOT EDIT
+# Autogenerated by calcdep
+VPATH = \$(SOURCEPATH)/src
+
+all: bin/inspircd modules
+
+END
+	my @core_deps;
+	for my $file (<*.cpp>, <modes/*.cpp>, "socketengines/$ENV{SOCKETENGINE}.cpp", "threadengines/threadengine_pthread.cpp") {
+		my $out = find_output $file;
+		dep_cpp $file, $out;
+		push @core_deps, $out;
+	}
+	
+	my @modlist;
+	for my $file (<commands/*.cpp>, <modules/*.cpp>) {
+		my $out = find_output $file;
+		dep_cpp $file, $out;
+		push @modlist, $out;
+	}
+
+	opendir my $moddir, 'modules';
+	for my $dir (readdir $moddir) {
+		next unless $dir =~ /^m_/ && -d "modules/$dir";
+		mkdir "$build/obj/$dir";
+		dep_dir "modules/$dir";
+		push @modlist, "modules/$dir.so";
+	}
+	
+	my $core_mk = join ' ', @core_deps;
+	my $mods = join ' ', @modlist;
+	print MAKE <<END;
+
+bin/inspircd: $core_mk
+	\$(RUNCC) -o \$\@ \$(CORELDFLAGS) \$(LDLIBS) \$^
+
+inspircd: bin/inspircd
+modules: $mods
+
+.PHONY: inspircd modules
+
+END
+}
+
+sub find_output($) {
+	my $file = shift;
+	my($path,$base) = $file =~ m#^((?:.*/)?)([^/]+)\.cpp# or die "Bad file $file";
+	if ($path eq 'modules/' || $path eq 'commands/') {
+		return "modules/$base.so";
+	} elsif ($path eq '' || $path eq 'modes/' || $path =~ /^[a-z]+engines\/$/) {
+		return "obj/$base.o";
+	} elsif ($path =~ m#modules/(m_.*)/#) {
+		return "obj/$1/$base.o";
+	} else {
+		die "Can't determine output for $file";
+	}
+}
+
+sub gendep($) {
 	my $f = shift;
 	my $basedir = $f =~ m#(.*)/# ? $1 : '.';
 	return $f2dep{$f} if exists $f2dep{$f};
@@ -27,17 +101,18 @@ sub gendep {
 	while (<$in>) {
 		if (/^\s*#\s*include\s*"([^"]+)"/) {
 			my $inc = $1;
-			next if $inc eq 'inspircd_version.h' && $f eq $baseinc.'/inspircd.h';
+			next if $inc eq 'inspircd_version.h' && $f eq '../include/inspircd.h';
 			my $found = 0;
-			for my $loc ("$basedir/$inc", "$baseinc/$inc") {
+			for my $loc ("$basedir/$inc", "../include/$inc") {
 				next unless -e $loc;
 				$found++;
-				$dep{$loc}++;
 				$dep{$_}++ for split / /, gendep $loc;
+				$loc =~ s#^\.\./##;
+				$dep{$loc}++;
 			}
 			if ($found == 0 && $inc ne 'inspircd_win32wrapper.h') {
 				print STDERR "WARNING: could not find header $inc for $f\n";
-			} elsif ($found > 1 && $basedir ne $baseinc) {
+			} elsif ($found > 1 && $basedir ne '../include') {
 				print STDERR "WARNING: ambiguous include $inc in $f\n";
 			}
 		}
@@ -47,75 +122,26 @@ sub gendep {
 	$f2dep{$f};
 }
 
-sub dep_cpp {
-	my($file, $dfile) = @_;
+sub dep_cpp($$) {
+	my($file, $out) = @_;
 	gendep $file;
-	my($path,$base) = $file =~ m#^((?:.*/)?)([^/]+)\.cpp# or die "Bad file $file";
-	my $ext = $path eq 'modules/' || $path eq 'commands/' ? '.so' : '.o';
-	my $out = "$path$base$ext";
-	$dfile = "$baseout/$path.$base.d" unless defined $dfile;
 
-	open OUT, '>', "$dfile" or die "Could not write $dfile: $!";
-	print OUT "$out: $file $f2dep{$file}\n";
-	print OUT "\t@\$(SOURCEPATH)/make/unit-cc.pl \$(VERBOSE) \$< $out\n";
+	print MAKE "$out: $file $f2dep{$file}\n";
+	print MAKE "\t@\$(SOURCEPATH)/make/unit-cc.pl \$(VERBOSE) \$< \$\@\n";
 }
 
-sub dep_dir {
-	my($dir, $dfile) = @_;
-	if ($dir =~ m#^(.*?)([^/]+)/?$#) {
-		my($path,$base) = ($1,$2);
-		my $out = "$path$base.so";
-		$dfile = "$baseout/$path.$base.d" unless defined $dfile;
-		opendir DIR, "$basesrc/$dir";
-		my $ofiles = join ' ', grep s/(.*)\.cpp$/$path$base\/$1.o/, readdir DIR;
-		closedir DIR;
-		open OUT, '>', "$dfile" or die "Could not write $dfile: $!";
-		print OUT "$out: $ofiles\n\t\$(RUNCC) \$(PICLDFLAGS) -o \$\@ \$^\n";
-		close OUT;
-	} else {
-		print STDERR "Cannot generate depencency for $dir\n";
-		exit 1;
+sub dep_dir($) {
+	my($dir) = @_;
+	my @ofiles;
+	opendir DIR, $dir;
+	for my $file (readdir DIR) {
+		next unless $file =~ /(.*)\.cpp$/;
+		my $ofile = find_output "$dir/$file";
+		dep_cpp "$dir/$file", $ofile;
+		push @ofiles, $ofile;
 	}
+	closedir DIR;
+	my $ofiles = join ' ', @ofiles;
+	print MAKE "$dir.so: $ofiles\n\t\$(RUNCC) \$(PICLDFLAGS) -o \$\@ \$^\n";
 }
 
-my($all,$quiet, $file);
-GetOptions(
-	'all' => \$all,
-	'quiet' => \$quiet,
-	'file=s' => \$file,
-);
-
-if (!$all && !defined $file) {
-	print "Use: $0 {-all|-file src dest} [-quiet]\n";
-	exit 1;
-}
-
-if (defined $file) {
-	my $dfile = shift or die "Syntax: -file <in> <out>";
-	$dfile = "$baseout/$dfile" unless $dfile =~ m#^/#;
-	if (-f $file) {
-		dep_cpp $file, $dfile;
-	} elsif (-d $file) {
-		dep_dir $file, $dfile;
-	} else {
-		print STDERR "Can't generate dependencies for $file\n";
-		exit 1;
-	}
-} else {
-	my @files = (<*.cpp>, <commands/*.cpp>, <modes/*.cpp>, <modules/*.cpp>, <modules/m_*/*.cpp>);
-	push @files, "socketengines/$ENV{SOCKETENGINE}.cpp", "threadengines/threadengine_pthread.cpp";
-	my @dirs = grep -d, <modules/m_*>;
-	mkdir "$baseout/$_" for qw(commands modes modules socketengines threadengines), @dirs;
-
-	for my $file (@files) {
-		dep_cpp $file;
-	}
-
-	for my $dir (@dirs) {
-		dep_dir $dir;
-	}
-
-	s#([^/]+)\.cpp#.$1.d# for @files;
-	s#([^/]+)/?$#.$1.d# for @dirs;
-	print join ' ', @files, @dirs;
-}