default:
	@echo 'Try one of {rebuild}'

rebuild: rebuild_rsync rebuild_reformat rebuild_convert rebuild_compress

rebuild_rsync:
	rsync -avz --exclude=/.mailbox --delete ftp.rfc-editor.org::rfcs-text-only rfc/rfctxt/
	chmod 644 rfc/rfctxt/rfc*txt

rebuild_reformat:
	cd rfc/rfctxt; for i in rfc*.txt; do perl -e ' \
		exit(0) if(-f "../rfcfmt/'$$i'" && "'$$i'" !~ /^rfc-index/); \
		print "Reformatting '$$i'\n"; \
		$$output = ""; $$buffer = ""; \
		while($$line = <STDIN>) { \
			$$line =~ tr/\000-\037//d; \
			$$line .= "\n"; \
			$$t = $$line; \
			$$t =~ tr/A-Za-z//cd; \
			if(length($$line) >= 2 * length($$t)) { \
				$$output .= "$$buffer\n$$line"; \
				$$buffer = ""; \
			} else { $$buffer .= $$line; } \
			$$buffer =~ s/\s+/ /gs; \
		} \
		$$output .= $$buffer; \
		$$output =~ s/\n\n+/\n\n/gs; \
		open(FILE, ">../rfcfmt/'$$i'"); \
		print FILE $$output; \
		close(FILE); \
	' < $$i; done

rebuild_convert:
	grep -h ^[[:digit:]][[:digit:]][[:digit:]][[:digit:]] rfc/rfcfmt/rfc-index*|perl -e ' \
		while (<>) { \
		    s/\s+/ /g; \
		    /^(0*(\d+).*)$$/; \
		    next unless(-f "rfc/rfcfmt/rfc$$2.txt"); \
		    if(!-f "rfc/pdb/rfc$$2.pdb.bz2" || -M "rfc/pdb/rfc$$2.pdb.bz2" > -M "rfc/rfcfmt/rfc$$2.txt") { \
	                print "Converting RFC $$2\n"; \
	                @foo = ("txt2pdbdoc", "RFC-$$1", "rfc/rfcfmt/rfc$$2.txt", "rfc/pdb/rfc$$2.pdb"); \
	                system(@foo) && print "FAIL:\n  $$_\n  ".join("\n  ",@foo)."\n"; \
	            } \
	        } \
	'

rebuild_compress:
	find rfc/pdb -name \*.pdb -exec bzip2 -9 {} \;