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module Puppet::Pops::Loader::UriHelper
# Raises an exception if specified gem can not be located
#
def path_for_uri(uri, subdir='lib')
case uri.scheme
when "gem"
begin
spec = Gem::Specification.find_by_name(uri.hostname)
# if path given append that, else append given subdir
File.join(spec.gem_dir, uri.path.empty?() ? subdir : uri.path)
rescue StandardError => e
raise "TODO TYPE: Failed to located gem #{uri}. #{e.message}"
end
when "file"
File.join(uri.path, subdir)
when nil
File.join(uri.path, subdir)
else
raise "Not a valid scheme for a loader: #{uri.scheme}. Use a 'file:' (or just a path), or 'gem://gemname[/path]"
end
end
end
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