really install the requested version of bundler

[jnicho02]

fixes #23

Bundler won't uninstall because it is a 'default' gem and you won't end up running the version you added. Deleting the default gemspec first removes its protection. 'dip bundle -v' to check

[palkan]

👍 Thanks!

Just one minor comment.

[palkan]

Could you please add a link to this PR to the comment for clarification?

[jnicho02]

is it okay now?

[palkan]

Thanks!

[flvrone]

I'm afraid it causes trouble, here's what I'm getting with this approach when trying to run rails s:

/usr/local/lib/ruby/site_ruby/2.6.0/rubygems.rb:281:in `find_spec_for_exe': Could not find 'bundler' (1.17.3) required by your /app/Gemfile.lock. (Gem::GemNotFoundException)
To update to the latest version installed on your system, run `bundle update --bundler`.
To install the missing version, run `gem install bundler:1.17.3

And I am getting it when this exact bundler is installed and running the suggested command does not change a thing.

I've "reverted" the changes this PR introduces and everything works well just as it was before.

[jnicho02]

Fair enough....but strange...I am using this every single day, also with the refinement of only running it when I definitely need a specific version of bundler:

RUN if test -z "$BUNDLER_VERSION"; then \ gem update --system; \ else \ gem update --system \ && rm /usr/local/lib/ruby/gems/*/specifications/default/bundler-*.gemspec \ && gem uninstall bundler \ && gem install bundler -v $BUNDLER_VERSION; \ fi

[chadwilken]

I reverted this and it works good for me just updating the system and installing the specific version

[oliverklee]

I reverted this and it works good for me just updating the system and installing the specific version

The same for us: We had to revert this to get rspec to work in RubyMine again. (On the console using dip, rspec was already working fine.)

[jandudulski]

BTW, since 2.3.0 it's simpler to deal with different versions - bundler will install it automatically.