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# Runs an external command and returns the results Puppet::Parser::Functions::newfunction(:generate, :type => :rvalue, :doc => "Calls an external command and returns the results of the command. Any arguments are passed to the external command as arguments. If the generator does not exit with return code of 0, the generator is considered to have failed and a parse error is thrown. Generators can only have file separators, alphanumerics, dashes, and periods in them. This function will attempt to protect you from malicious generator calls (e.g., those with '..' in them), but it can never be entirely safe. No subshell is used to execute generators, so all shell metacharacters are passed directly to the generator.") do |args| unless args[0] =~ /^#{File::SEPARATOR}/ raise Puppet::ParseError, "Generators must be fully qualified" end unless args[0] =~ /^[-#{File::SEPARATOR}\w.]+$/ raise Puppet::ParseError, "Generators can only contain alphanumerics, file separators, and dashes" end if args[0] =~ /\.\./ raise Puppet::ParseError, "Can not use generators with '..' in them." end begin output = Puppet::Util.execute(args) rescue Puppet::ExecutionFailure => detail raise Puppet::ParseError, "Failed to execute generator %s: %s" % [args[0], detail] end output end
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6 entries across 6 versions & 1 rubygems