liminix/doc/parse-options.fnl

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(local json (require :dkjson))
(local { : view } (require :fennel))
(fn headline [name]
(let [(_ _ basename) (string.find name ".*/([^/].*)")
len (basename:len)]
(print basename)
(print (string.rep "=" len))))
(fn strip-newlines [text]
(and text
(-> text
(string.gsub "\n([^\n])" " %1")
(string.gsub "\n\n+" "\n"))))
(fn indent [n text]
(let [margin (string.rep " " n)]
(.. margin (string.gsub text "\n +" (.. "\n" margin )))))
(fn extract-text [description]
(and description
; (do (print (view description)) true)
(-> (match description
{ :type "literalExpression" : text } text
{} nil
nil nil
t description)
strip-newlines)))
(fn print-option [o offset]
(let [i (or offset 0)]
(print (indent i (.. " * option ``" o.name "``")))
(print (indent (+ 4 i)
(or (extract-text o.description) "(no description)")))
(print)
(print (indent (+ 4 i) (.. "**type** " o.type "\n")))
(print (indent (+ 4 i)
(.. "**default** "
(or (extract-text (?. o :default)) "(none)")
"\n"
)))
(print )))
(fn print-service [o]
(print (.. " * service ``" o.name "``"))
(print (indent 4 (or (extract-text o.description) "(no description)")))
(print)
(print (indent 4 "**Service parameters**\n"))
(each [_ param (ipairs o.parameters)]
(print-option param 4)))
(fn sort-options [module]
(table.sort module (fn [a b] (< a.name b.name)))
module)
(let [raw (json.decode (io.read "*a"))
modules {}]
(each [_ option (ipairs raw)]
(let [[path] option.declarations
e (or (. modules path) [])]
(table.insert e option)
(tset modules path e)))
(each [name module (pairs modules)]
(print (headline name))
(let [options (sort-options module)]
(each [_ o (ipairs options)]
(if (= o.type "parametrisable s6-rc service definition")
(print-service o)
(print-option o))))))
;; for each element el, add to table modules keyed on
;; el.declarations
;; for each value in modules
;; print title
;; elements = (sort elements on el.name)
;; for each el in elements
;; is option or service? print whichever
;;