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# Runs an external command and returns the results
Puppet::Parser::Functions::newfunction(:generate, :type => :rvalue,
:doc => "Calls an external command on the Puppet master 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|
raise Puppet::ParseError, "Generators must be fully qualified" unless args[0] =~ /^#{File::SEPARATOR}/
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
Dir.chdir(File.dirname(args[0])) { Puppet::Util.execute(args) }
rescue Puppet::ExecutionFailure => detail
raise Puppet::ParseError, "Failed to execute generator #{args[0]}: #{detail}"
end
end
Version data entries
37 entries across 37 versions & 2 rubygems