Feature #4588: exec(env, cmd) fails in Ruby 1.8; works in 1.9

• Status: Rejected
• Assignee: knu (Akinori MUSHA)
• Target version: Ruby 1.8.7

[sunaku (Suraj Kurapati)]

=begin
Passing a hash as the "env" parameter for exec() fails in Ruby 1.8:

ruby -ve 'exec({"HELLO"=>"WORLD"}, "ruby", "-ve", "puts ENV[%q(HELLO)]")'

ruby 1.8.7 (2011-02-18 patchlevel 334) [x86_64-linux]
-e:1:in `exec': can't convert Hash into String (TypeError)
from -e:1

In contrast, it works correctly in Ruby 1.9:

ruby -ve 'exec({"HELLO"=>"WORLD"}, "ruby", "-ve", "puts ENV[%q(HELLO)]")'

ruby 1.9.2p180 (2011-02-18 revision 30909) [x86_64-linux]
ruby 1.9.2p180 (2011-02-18 revision 30909) [x86_64-linux]
WORLD

Thanks for your consideration.
=end

[sunaku (Suraj Kurapati)]

=begin
My mistake. I just noticed that Kernel#exec() lacks an "env" parameter in the Ruby 1.8.7 API docs. So this bug report is now a feature request. Sorry for the confusion.
=end

[nobu (Nobuyoshi Nakada)]

• Tracker changed from Bug to Feature
• Status changed from Open to Assigned
• Assignee set to knu (Akinori MUSHA)

=begin

=end

[knu (Akinori MUSHA)]

• Status changed from Assigned to Rejected

1.8.7 is legacy and basically feature frozen.

If you provide me with a patch I could commit it to ruby_1_8, but there will be no backport to ruby_1_8_7.
If it's okay, reopen this issue when the patch is ready.