config.in generation to reduce maintainance headaches

1 files changed, 98 insertions, 0 deletions

diff --git a/scripts/makecfg.pl b/scripts/makecfg.pl
new file mode 100755
index 0000000..20c23f5
--- a/dev/null
+++ b/scripts/makecfg.pl
@@ -0,0 +1,98 @@
+#!/usr/bin/perl -w
+eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
+if 0; #$running_under_some_shell
+
+use strict;
+use File::Find;
+
+my $packages="";
+open(FILE, "<./packages");
+while(<FILE>){$packages.=$_;}
+close(FILE);
+
+my ($dirname,$dir,$cfg,$filename,$tagname,$name,$caps,$pre,$post,$sources,@dupecheck);
+$cfg = shift || die;
+($dirname=$cfg)=~s,(.*)/(.*),$1,;
+($filename=$cfg)=~s,(.*/)(.*),$2,;
+($tagname=$dirname)=~s,.*/,,;
+($caps=$tagname)=~tr/[a-z]/[A-Z]/;
+#print "cfg is $cfg\n";
+#print "dir is $dirname\n";
+#print "filename is $filename\n";
+sub wanted;
+
+if(-e "$dirname/config.in.in"){
+	my $contents;
+	open(FILE, "<$dirname/config.in.in");
+	while(<FILE>){ $contents.=$_; }
+	close(FILE);
+	if($contents=~/\@sources\@/){
+		($post = $contents) =~ s/^.*\@sources\@//s;
+		($pre = $contents) =~ s/\@sources\@.*$//s;
+	} else {
+		$pre = $contents;
+	}
+} else {
+	$pre = "menu \"$tagname\"\n";
+	$post = "endmenu\n";
+}
+
+open(CFG, ">$cfg") || die "Unable to open $cfg for writing\n";
+select(CFG);
+print $pre;
+@dupecheck=();
+File::Find::find({wanted => \&wanted}, $dirname);
+print $post;
+select(STDOUT);
+close(CFG);
+
+exit;
+
+open(FILE,">$dir/config.in");
+select(FILE);
+print "menu \"$name\"\n";
+print "\n";
+my @subdirs=();
+my @dirs;
+foreach(grep(/^$dir/, @dirs)){
+	chomp;
+	/^$dir\/$name.pro$/ && next;
+	my $localdir=$_;
+	if($dir=~m,^$localdir$,){
+		next;
+	}
+#($locadir=$_)~s,/[^/]+$,,g;
+	if($localdir=~/^\.$/){next;}
+	if(grep(/^$localdir$/, @subdirs)){next;}
+	my $nslashes = $localdir =~ tr!/!!;
+	my $dirnslashes = $dir =~ tr!/!!;
+	$dirnslashes++;
+	if($dirnslashes != $nslashes ){next;}
+	print STDERR "$localdir/config.in\n";
+	print "  source $localdir/config.in\n";
+	push(@subdirs, $localdir);
+	print "endmenu\n";
+	select(STDOUT);
+	close(FILE);
+}
+
+use vars qw/*name *dir *prune/;
+*name   = *File::Find::name;
+*dir    = *File::Find::dir;
+*prune  = *File::Find::prune;
+	
+sub wanted {
+	if( /config.in/s ) {
+		if(grep(/^$File::Find::dir\/config.in$/, @dupecheck)){
+			return;
+		}
+		my $nslashes = $File::Find::dir =~ tr!/!!;
+		my $dirnslashes = $dirname =~ tr!/!!;
+		$dirnslashes++;
+#		print STDERR "dirnslashes is $dirnslashes\n";
+#		print STDERR "nslashes is $nslashes\n";
+		if($dirnslashes != $nslashes){return;}
+		print "  source " . $File::Find::dir . "/config.in\n";
+		push(@dupecheck, $File::Find::dir . "/config.in");
+	}
+}