27 lines
646 B
Ruby
27 lines
646 B
Ruby
# Psych could be a gem, so try to ask for it
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begin
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gem 'psych'
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rescue LoadError
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end if defined?(gem)
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# Psych could just be in the stdlib
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# but it's too late if Syck is already loaded
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begin
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require 'psych' unless defined?(Syck)
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rescue LoadError
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# Apparently Psych wasn't available. Oh well.
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end
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# At least load the YAML stdlib, whatever that may be
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require 'yaml' unless defined?(YAML.dump)
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module Bundler
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# On encountering invalid YAML,
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# Psych raises Psych::SyntaxError
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if defined?(::Psych::SyntaxError)
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YamlSyntaxError = ::Psych::SyntaxError
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else # Syck raises ArgumentError
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YamlSyntaxError = ::ArgumentError
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end
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end
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