From 212e90ce3a056aaf5915a11c061a80e893f8e2fd Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 1 Jan 2009 06:08:41 +0000
Subject: [PATCH] * ext/socket/mkconstants.rb: add -o option.

* ext/socket/depend: use mkconstants.rb with -o option.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@21224 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog                 |  6 ++++++
 ext/socket/depend         |  2 +-
 ext/socket/mkconstants.rb | 30 +++++++++++++++++++++++++++++-
 3 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 223f630c83..d4a580899c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Thu Jan  1 15:07:56 2009  Tanaka Akira  <akr@fsij.org>
+
+	* ext/socket/mkconstants.rb: add -o option.
+
+	* ext/socket/depend: use mkconstants.rb with -o option.
+
 Thu Jan  1 07:42:36 2009  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* lib/singleton.rb: fix indentation of RDoc text.  [ruby-core:21029]
diff --git a/ext/socket/depend b/ext/socket/depend
index 29bc2f3be3..0a9b8cacef 100644
--- a/ext/socket/depend
+++ b/ext/socket/depend
@@ -6,4 +6,4 @@ getaddrinfo.o: getaddrinfo.c $(arch_hdrdir)/ruby/config.h addrinfo.h sockport.h
 
 constants.h: $(srcdir)/mkconstants.rb
 	@echo "generating constants.h"
-	@$(RUBY) $(srcdir)/mkconstants.rb > $@
+	@$(RUBY) $(srcdir)/mkconstants.rb -o $@
diff --git a/ext/socket/mkconstants.rb b/ext/socket/mkconstants.rb
index 589e3b2bb3..948eda8be1 100644
--- a/ext/socket/mkconstants.rb
+++ b/ext/socket/mkconstants.rb
@@ -1,4 +1,24 @@
-$out ||= $stdout
+require 'optparse'
+
+opt = OptionParser.new
+
+opt.def_option('-h', 'help') {
+  puts opt
+  exit 0
+}
+
+opt_o = nil
+opt.def_option('-o FILE', 'specify output file') {|filename|
+  opt_o = filename
+}
+
+$out = ''
+def $out.puts(str="")
+  str += "\n" if /\n\z/ !~ str
+  self << str
+end
+
+opt.parse!
 
 # workaround for NetBSD, OpenBSD and etc.
 $out.puts("#define pseudo_AF_FTIP pseudo_AF_RTIP")
@@ -23,6 +43,14 @@ DATA.each_line do |s|
   end
 end
 
+if opt_o
+  File.open(opt_o, 'w') {|f|
+    f << $out
+  }
+else
+  $stdout << $out
+end
+
 __END__
 
 SOCK_STREAM