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List:       ruby-core
Subject:    [ruby-core:91353] [Ruby trunk Bug#15469] Ruby2.6 included `bundler` does not handle specified `csv` 
From:       watson1978 () gmail ! com
Date:       2019-01-31 9:45:01
Message-ID: redmine.journal-76605.20190131094500.bf03871772c217b4 () ruby-lang ! org
[Download RAW message or body]

Issue #15469 has been updated by watson1978 (Shizuo Fujita).


hsbt (Hiroshi SHIBATA) wrote:
> @watson1978
> 
> Can you try this with Ruby 2.6.1? r66867 fixed this issue maybe.

Thank you for your working.
I re-tried the test code in description,
However, there is not difference for me....

```
$ bundle install
Fetching gem metadata from https://rubygems.org/.........
Resolving dependencies...
Using bundler 1.17.2
Fetching rubyzip 1.2.2
Fetching csv 1.0.0
Fetching mini_portile2 2.4.0
Installing csv 1.0.0
Installing mini_portile2 2.4.0
Installing rubyzip 1.2.2
Fetching nokogiri 1.10.1
Installing nokogiri 1.10.1 with native extensions
Fetching roo 2.8.1
Installing roo 2.8.1
Bundle complete! 2 Gemfile dependencies, 6 gems now installed.
Use `bundle info [gemname]` to see where a bundled gem is installed.

$ bundle exec ruby -v test.rb
ruby 2.6.1p33 (2019-01-30 revision 66950) [x86_64-darwin18]
"3.0.4"
```

----------------------------------------
Bug #15469: Ruby2.6 included `bundler` does not handle specified `csv` gem.
https://bugs.ruby-lang.org/issues/15469#change-76605

* Author: watson1978 (Shizuo Fujita)
* Status: Assigned
* Priority: Normal
* Assignee: hsbt (Hiroshi SHIBATA)
* Target version: 
* ruby -v: 
* Backport: 2.4: UNKNOWN, 2.5: UNKNOWN, 2.6: UNKNOWN
----------------------------------------
I want to use `csv` library which is same version of Ruby 2.5.
Because Ruby 2.6's csv library has some breaking changes and they break our product.

However, Ruby 2.6's `bundler` does not handle `csv` which I specified the version.

## Test code

* Gemfile

```
source "https://rubygems.org"

gem 'roo'
gem 'csv', '1.0.0'
```

* test.rb

```
require "bundler/setup"
require "csv"

p CSV::VERSION
```

## Result

```
$ bundle exec ruby -v test.rb
ruby 2.6.0p0 (2018-12-25 revision 66547) [x86_64-darwin18]
"3.0.2"
```

`CSV::VERSION` shows `3.0.2` and  it indicates that Ruby 2.6 included `csv` library was used.

## Workaround
If I install the `bundler` gem through `gem install bundler`, it works well.

```
$ gem install bundler
Fetching bundler-1.17.3.gem
Successfully installed bundler-1.17.3
1 gem installed

$ bundle exec ruby -v test.rb
ruby 2.6.0p0 (2018-12-25 revision 66547) [x86_64-darwin18]
"2.4.8"
```



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