Return the path to the data directory associated with the named package. If the package is loaded as a gem, return the gem specific data directory. Otherwise return a path to the share area as define by “#{ConfigMap}/#{package_name}”.
# File rubygems.rb, line 1077
def RbConfig.datadir(package_name)
Gem.datadir(package_name) ||
File.join(Gem::ConfigMap[:datadir], package_name)
end
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