[ruby-core:112029] [Ruby master Bug#10919] [gem install] installs multipe platforms

Issue #10919 has been updated by hsbt (Hiroshi SHIBATA).

Status changed from Assigned to Third Party's Issue

@abaumgaertner Can you file this to https://github.com/rubygems/rubygems?

----------------------------------------
Bug #10919: [gem install] installs multipe platforms
https://bugs.ruby-lang.org/issues/10919#change-101463

* Author: abaumgaertner (Andreas Baumgaertner)
* Status: Third Party's Issue
* Priority: Normal
* Assignee: hsbt (Hiroshi SHIBATA)
* ruby -v: ruby 2.2.1p85 (2015-02-26 revision 49761) [x64-mingw32]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
Natively build a gem - just an example mysql2 on windows x64-mingw32
I could only get the gem to compile with devkit when --platform=ruby is specified - so my understanding is that all devkit compiled gems are platform ruby, even if devkit platform is acutally x64-mingw32

~~~
C:\apps\redmine_dev\bin>gem install mysql2 --no-document --platform=ruby -- "--with-mysql-dir=c:/apps/redmine_dev/mysql-5.6.23-winx64"
Fetching: mysql2-0.3.18.gem (100%)
Temporarily enhancing PATH to include DevKit...
Building native extensions with: '--with-mysql-dir=c:/apps/redmine_dev/mysql-5.6.23-winx64'
This could take a while...
Successfully installed mysql2-0.3.18
1 gem installed
~~~

here comes the acutal issue:
rerun (also with other dependency managers e.g. bundle install) installs dupplicate gem for platform x64-mingw32

~~~
C:\apps\redmine_dev\bin>gem install mysql2
Fetching: mysql2-0.3.18-x64-mingw32.gem (100%)

======================================================================================================

 \ You've installed the binary version of mysql2.
  It was built using MySQL Connector/C version 6.1.5.
  It's recommended to use the exact same version to avoid potential issues.

  At the time of building this gem, the necessary DLL files were retrieved from:
  http://cdn.mysql.com/Downloads/Connector-C/mysql-connector-c-6.1.5-winx64.zip

 \ This gem *includes* vendor/libmysql.dll with redistribution notice in vendor/README.

======================================================================================================

Successfully installed mysql2-0.3.18-x64-mingw32
Parsing documentation for mysql2-0.3.18-x64-mingw32
Installing ri documentation for mysql2-0.3.18-x64-mingw32
Done installing documentation for mysql2 after 0 seconds
1 gem installed
~~~

what is the point in installing a gem for two platforms?
it is also not supported by require to specify a platform.

solution a:
gem install should not install an additional platform, if the gem is already present
gem list should always display the platform (not only if there are more than 1)

solution b:
add an option to gem install that forces devkit build for specific platform so gem install will recognize that the platform is already present.


~~~
C:\apps\redmine_dev\bin>gem list

*** LOCAL GEMS ***

bundler (1.8.3)
mysql2 (0.3.18 ruby x64-mingw32)
~~~

~~~
C:\apps\redmine_dev\bin>gem env
RubyGems Environment:
  - RUBYGEMS VERSION: 2.4.5
  - RUBY VERSION: 2.2.1 (2015-02-26 patchlevel 85) [x64-mingw32]
  - INSTALLATION DIRECTORY: C:/apps/redmine_dev/ruby/lib/ruby/gems/2.2.0
  - RUBY EXECUTABLE: C:/apps/redmine_dev/ruby/bin/ruby.exe
  - EXECUTABLE DIRECTORY: C:/apps/redmine_dev/ruby/bin
  - SPEC CACHE DIRECTORY: C:/Users/abaumgaertner/.gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: C:/ProgramData
  - RUBYGEMS PLATFORMS:
    - ruby
    - x64-mingw32
  - GEM PATHS:
     - C:/apps/redmine_dev/ruby/lib/ruby/gems/2.2.0
     - C:/Users/abaumgaertner/.gem/ruby/2.2.0
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - https://rubygems.org/
  - SHELL PATH:
     - C:\apps\redmine_dev\ruby\bin
     - C:\apps\redmine_dev\libs
     - C:\apps\redmine_dev\ImageMagick
     - D:\apps\mercurial_dev
     - d:\msys64\mingw64\bin
     - d:\msys64\mingw64\lib
     - d:\msys64\usr\bin
     - C:\Windows\system32
     - C:\Windows
     - C:\Windows\System32\Wbem
     - C:\Windows\System32\WindowsPowerShell\v1.0\
~~~



-- 
https://bugs.ruby-lang.org/
 ______________________________________________
 ruby-core mailing list -- [e-mail]
 To unsubscribe send an email to [e-mail]
 ruby-core info -- https://ml.ruby-lang.org/mailman3/postorius/lists/ruby-core.ml.ruby-lang.org/