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(use-modules (aws cloudformation utils)
(aws cloudformation utils json)
(ice-9 match)
(srfi srfi-1))
(define spec
(call-with-input-file "cloudformation-spec.json" read-json))
(define spec-version (json-assoc-ref spec "ResourceSpecificationVersion"))
(define properties-by-service (make-hash-table))
(define resources-by-service (make-hash-table))
(define (parse-service-name name)
(match (delete "" (string-split name #\:))
(("Tag") "Universal")
((_ service . _) service)))
(define (add-to-group table type-spec)
(match type-spec
((name . details)
(let* ((service (parse-service-name name))
(existing-stuff (or (hash-ref table service) '())))
(hash-set! table
service
(cons type-spec existing-stuff))))))
(for-each (lambda (property)
(add-to-group properties-by-service property))
(json-assoc-ref spec "PropertyTypes"))
(for-each (lambda (property)
(add-to-group resources-by-service property))
(json-assoc-ref spec "ResourceTypes"))
(define (hash-table-keys table)
(hash-fold (lambda (k v memo) (cons k memo)) '() table))
(define services
(sort (lset-union string=?
(hash-table-keys properties-by-service)
(hash-table-keys resources-by-service))
string<))
(for-each (lambda (service)
(let* ((module-suffix (symbol->string (aws-string->symbol service)))
(file-name (string-append "aws/cloudformation/"
module-suffix ".cfn")))
(display "create ")
(display file-name)
(newline)
(call-with-output-file file-name
(lambda (port)
(let ((properties (or (hash-ref properties-by-service service)
'()))
(resources (or (hash-ref resources-by-service service)
'())))
(write `(("ModuleSuffix" . ,module-suffix)
,@(if (string=? service "Universal")
`(("ResourceSpecificationVersion" .
,spec-version))
'())
("PropertyTypes" . ,properties)
("ResourceTypes" . ,resources))
port))))))
services)
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