nobu	2016-11-07 11:54:27 +0900 (Mon, 07 Nov 2016)

  New Revision: 56654

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=56654

  Log:
    vcs.rb: use chdir option
    
    * tool/vcs.rb (export_changelog): for old git, use chdir option
      instead of git -C option, and set language environmets to C.

  Modified files:
    trunk/tool/vcs.rb
Index: tool/vcs.rb
===================================================================
--- tool/vcs.rb	(revision 56653)
+++ tool/vcs.rb	(revision 56654)
@@ -77,6 +77,16 @@ if RUBY_VERSION < "2.0" https://github.com/ruby/ruby/blob/trunk/tool/vcs.rb#L77
       end
     end
   end
+else
+  module DebugPOpen
+    refine IO.singleton_class do
+      def popen(*args)
+        STDERR.puts args.inspect if $DEBUG
+        super
+      end
+    end
+  end
+  using DebugPOpen
 end
 
 class VCS
@@ -295,7 +305,8 @@ class VCS https://github.com/ruby/ruby/blob/trunk/tool/vcs.rb#L305
     end
 
     def export_changelog(srcdir, url, from, to, path)
-      IO.popen({'TZ' => 'JST-9'}, "svn log -r#{to}:#{from} #{url}") do |r|
+      IO.popen({'TZ' => 'JST-9', 'LANG' => 'C', 'LC_ALL' => 'C'},
+               %W"svn log -r#{to}:#{from} #{url}") do |r|
         open(path, 'w') do |w|
           IO.copy_stream(r, w)
         end
@@ -378,9 +389,15 @@ class VCS https://github.com/ruby/ruby/blob/trunk/tool/vcs.rb#L389
     end
 
     def export_changelog(srcdir, url, from, to, path)
-      from = `git -C #{srcdir} log -n1 --format=format:%H --grep='^ *git-svn-id: .*@#{from} '`
-      to = `git -C #{srcdir} log -n1 --format=format:%H --grep='^ *git-svn-id: .*@#{to} '`
-      IO.popen({'TZ' => 'JST-9'}, "git -C #{srcdir} log --date=iso-local --topo-order #{from}..#{to}") do |r|
+      from = IO.pread(%W"git log -n1 --format=format:%H" +
+                      ["--grep=^ *git-svn-id: .*@#{from} "],
+                      :chdir => srcdir)
+      to &&= IO.pread(%W"git log -n1 --format=format:%H" +
+                      ["--grep=^ *git-svn-id: .*@#{to} "],
+                      :chdir => srcdir)
+      IO.popen({'TZ' => 'JST-9', 'LANG' => 'C', 'LC_ALL' => 'C'},
+               %W"git log --date=iso-local --topo-order #{from}..#{to}",
+               :chdir => srcdir) do |r|
         open(path, 'w') do |w|
           IO.copy_stream(r, w)
         end

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