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services: configuration: Uniformize the generated documentation.

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Make the formatting of the generated docs more consistent with the rest of the
docs in the “Services” section of the manual.

* gnu/services/configuration (generate-documentation): Represent the data type
documentation of a field using a DEFTP table rather than DEFTYPEVR elements.

Modified-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
This commit is contained in:
Xinglu Chen 2021-06-09 15:06:26 +02:00 committed by Maxim Cournoyer
parent 5b2b834269
commit ad945029a2
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1 changed files with 31 additions and 26 deletions
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57
gnu/services/configuration.scm
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@ -255,32 +255,37 @@ (define (str x) (object->string x))
(define (generate configuration-name)
(match (assq-ref documentation configuration-name)
((fields . sub-documentation)
`((para "Available " (code ,(str configuration-name)) " fields are:")
,@(map
(lambda (f)
(let ((field-name (configuration-field-name f))
(field-type (configuration-field-type f))
(field-docs (cdr (texi-fragment->stexi
(configuration-field-documentation f))))
(default (catch #t
(configuration-field-default-value-thunk f)
(lambda _ '%invalid))))
(define (show-default? val)
(or (string? val) (number? val) (boolean? val)
(and (symbol? val) (not (eq? val '%invalid)))
(and (list? val) (and-map show-default? val))))
`(deftypevr (% (category
(code ,(str configuration-name)) " parameter")
(data-type ,(str field-type))
(name ,(str field-name)))
,@field-docs
,@(if (show-default? default)
`((para "Defaults to " (samp ,(str default)) "."))
'())
,@(append-map
generate
(or (assq-ref sub-documentation field-name) '())))))
fields)))))
`((deftp (% (category "Data Type") (name ,(str configuration-name)))
(para "Available " (code ,(str configuration-name)) " fields are:")
(table
(% (formatter (asis)))
,@(map
(lambda (f)
(let ((field-name (configuration-field-name f))
(field-type (configuration-field-type f))
(field-docs (cdr (texi-fragment->stexi
(configuration-field-documentation f))))
(default (catch #t
(configuration-field-default-value-thunk f)
(lambda _ '%invalid))))
(define (show-default? val)
(or (string? val) (number? val) (boolean? val)
(and (symbol? val) (not (eq? val '%invalid)))
(and (list? val) (and-map show-default? val))))
`(entry (% (heading
(code ,(str field-name))
,@(if (show-default? default)
`(" (default: "
(code ,(str default)) ")")
'())
" (type: " ,(str field-type) ")"))
(para ,@field-docs)
,@(append-map
generate
(or (assq-ref sub-documentation field-name)
'())))))
fields)))))))
(stexi->texi `(*fragment* . ,(generate documentation-name))))
(define (configuration->documentation configuration-symbol)