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gem environment, or where are my gems being loaded from, etc.
Ever have a problem with the wrong gem loading or the gem you’re expecting not being found? You can use the gem environment command to output various information about the RubyGems environment: If you export GEM_PATH=/path:/path2… those paths will be added to the GEM You can also see the remote sources, and the gem configuration…
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Extending Immediate Types and Source Locations in Ruby
Overridding singleton classes of instances In Ruby, most types allow you to open up their singleton classes to override instance methods: Immediate values Some objects are implemented as immediate values in Ruby, and cannot be implemented have singleton methods defined on them directly: Fixnum, true, nil, and false are implemented as immediate values. With immediate values, variables hold the…
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Conditional gems in ruby without breaking Gemfile.lock
Do you want ruby/bundler to skip a gem install on a certain platform, but any other platform needs that gem? The obvious answer would be the following, which would result in also clobbering your Gemfile.lock if bundling on macOS: gem “openssl”, “= 3.2.0” if RUBY_PLATFORM !~ /darwin/ But bundler has its own method, install_if , to accomplish such a…