Define task to build *.edit.po in gettext:po:add task

[KitaitiMakoto]

Hi,

In some case, gettext:po:add[locale] task fails.

When we are at, for example, commit 3434ab3 of this gettext repository, we cannot execute the task with lang argument which doesn't exist for now:

% bundle exec rake 'test:_:gettext:po:add[zh]' -t
** Invoke test:_:gettext:po:add (first_time)
** Execute test:_:gettext:po:add
** Invoke test/po/zh/_.po (first_time)
rake aborted!
Don't know how to build task 'test/po/zh/_.edit.po' (See the list of available tasks with `rake --tasks`)
Did you mean?  test/po/ja/_.edit.po
test/po/ja/s_.edit.po
test/po/zh/_.po
test/po/ja/ns_.edit.po
test/po/ja/p_.edit.po
test/po/ja/np_.edit.po
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/task_manager.rb:59:in `[]'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:66:in `lookup_prerequisite'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:62:in `block in prerequisite_tasks'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:62:in `map'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:62:in `prerequisite_tasks'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:241:in `invoke_prerequisites'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:218:in `block in invoke_with_call_chain'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:199:in `synchronize'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:199:in `invoke_with_call_chain'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:188:in `invoke'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/lib/gettext/tools/task.rb:461:in `block (2 levels) in define_po_tasks'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:279:in `block in execute'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:279:in `each'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:279:in `execute'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:219:in `block in invoke_with_call_chain'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:199:in `synchronize'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:199:in `invoke_with_call_chain'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/task.rb:188:in `invoke'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/application.rb:160:in `invoke_task'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/application.rb:116:in `block (2 levels) in top_level'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/application.rb:116:in `each'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/application.rb:116:in `block in top_level'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/application.rb:125:in `run_with_threads'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/application.rb:110:in `top_level'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/application.rb:83:in `block in run'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/application.rb:186:in `standard_exception_handling'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/lib/rake/application.rb:80:in `run'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/gems/rake-13.0.1/exe/rake:27:in `<top (required)>'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/bin/rake:23:in `load'
/home/kitaitimakoto/src/github.com/ruby-gettext/gettext/vendor/bundle/ruby/2.7.0/bin/rake:23:in `<top (required)>'
/home/kitaitimakoto/.gem/ruby/2.7.0/gems/bundler-2.1.4/lib/bundler/cli/exec.rb:63:in `load'
/home/kitaitimakoto/.gem/ruby/2.7.0/gems/bundler-2.1.4/lib/bundler/cli/exec.rb:63:in `kernel_load'
/home/kitaitimakoto/.gem/ruby/2.7.0/gems/bundler-2.1.4/lib/bundler/cli/exec.rb:28:in `run'
/home/kitaitimakoto/.gem/ruby/2.7.0/gems/bundler-2.1.4/lib/bundler/cli.rb:476:in `exec'
/home/kitaitimakoto/.gem/ruby/2.7.0/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
/home/kitaitimakoto/.gem/ruby/2.7.0/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
/home/kitaitimakoto/.gem/ruby/2.7.0/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor.rb:399:in `dispatch'
/home/kitaitimakoto/.gem/ruby/2.7.0/gems/bundler-2.1.4/lib/bundler/cli.rb:30:in `dispatch'
/home/kitaitimakoto/.gem/ruby/2.7.0/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor/base.rb:476:in `start'
/home/kitaitimakoto/.gem/ruby/2.7.0/gems/bundler-2.1.4/lib/bundler/cli.rb:24:in `start'
/home/kitaitimakoto/.gem/ruby/2.7.0/gems/bundler-2.1.4/exe/bundle:46:in `block in <top (required)>'
/home/kitaitimakoto/.gem/ruby/2.7.0/gems/bundler-2.1.4/lib/bundler/friendly_errors.rb:123:in `with_friendly_errors'
/home/kitaitimakoto/.gem/ruby/2.7.0/gems/bundler-2.1.4/exe/bundle:34:in `<top (required)>'
/home/kitaitimakoto/.gem/ruby/2.7.0/bin/bundle:23:in `load'
/home/kitaitimakoto/.gem/ruby/2.7.0/bin/bundle:23:in `<main>'
Tasks: TOP => test/po/zh/_.po

I wrote a patch to fix this problem. Can you consider it?

Thanks.

[kou]

Good catch!