From f80c80f004b62dd29ec808d5674874a2ada900a9 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 18 Oct 2018 06:36:30 +0000
Subject: make-snapshot: package with TarHeader

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65150 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 tool/make-snapshot | 42 +++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 41 insertions(+), 1 deletion(-)

(limited to 'tool/make-snapshot')

diff --git a/tool/make-snapshot b/tool/make-snapshot
index 048119779e..33e451251c 100755
--- a/tool/make-snapshot
+++ b/tool/make-snapshot
@@ -155,6 +155,46 @@ unless tmp = $exported
   } unless $keep_temp
 end
 
+def tar_create(tarball, dir)
+  require 'rubygems'
+  require 'rubygems/package'
+  require 'rubygems/package/tar_writer'
+  header = Gem::Package::TarHeader
+  dir_type = "5"
+  uname = gname = "ruby"
+  File.open(tarball, "wb") do |f|
+    w = Gem::Package::TarWriter.new(f)
+    Dir.glob("#{dir}/**/*", File::FNM_DOTMATCH) do |path|
+      next if File.basename(path) == "."
+      s = File.stat(path)
+      case
+      when s.file?
+        type = nil
+        size = s.size
+      when s.directory?
+        path += "/"
+        type = dir_type
+        size = 0
+      else
+        next
+      end
+      name, prefix = w.split_name(path)
+      h = header.new(name: name, prefix: prefix,
+                     mode: s.mode, size: size, mtime: s.mtime,
+                     uname: uname, gname: gname)
+      f.write(h)
+      if size > 0
+        IO.copy_stream(path, f)
+        f.write("\0" * (-size % 512))
+      end
+    end
+  end
+  true
+rescue => e
+  warn e.message
+  false
+end
+
 def package(vcs, rev, destdir, tmp = nil)
   patchlevel = false
   prerelease = false
@@ -417,7 +457,7 @@ _touch-unicode-files:
       else
         tarball = "#{$archname||v}.tar"
         print "creating tarball... #{tarball}"
-        if system("tar", "cf", tarball, v)
+        if tar_create(tarball, v)
           puts $colorize.pass(" done")
         else
           puts $colorize.fail(" failed")
-- 
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