92 lines
2.8 KiB
Fennel
92 lines
2.8 KiB
Fennel
(local yaml (require :lyaml))
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(local { : view } (require :fennel))
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(fn headline [name]
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(let [(_ _ basename) (string.find name ".*/([^/].*)")
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len (basename:len)]
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(print basename)
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(print (string.rep "=" len))))
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(fn read-preamble [pathname]
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(if (= (pathname:sub 1 1) "/")
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(let [pathname (if (string.match pathname ".nix$")
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pathname
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(.. pathname "/default.nix"))]
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(with-open [f (assert (io.open pathname :r))]
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(accumulate [lines ""
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l (f:lines)
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:until (not (= (string.sub l 1 2) "##"))]
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(.. lines (string.gsub l "^## *" "") "\n"))))))
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(fn strip-newlines [text]
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(and text
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(-> text
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(string.gsub "\n([^\n])" " %1")
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(string.gsub "\n\n+" "\n"))))
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(fn indent [n text]
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(let [margin (string.rep " " n)]
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(.. margin (string.gsub text "\n +" (.. "\n" margin )))))
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(fn extract-text [description]
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(and description
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; (do (print (view description)) true)
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(-> (match description
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{ :type "literalExpression" : text } text
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{} nil
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nil nil
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t description)
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strip-newlines)))
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(fn print-option [o offset]
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(let [i (or offset 0)]
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(print (indent i (.. " * option ``" o.name "``")))
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(print (indent (+ 4 i)
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(or (extract-text o.description) "(no description)")))
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(print)
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(print (indent (+ 4 i) (.. "**type** " o.type "\n")))
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(print (indent (+ 4 i)
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(.. "**default** "
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(or (extract-text (?. o :default)) "(none)")
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"\n"
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)))
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(print )))
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(fn print-service [o]
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(print (.. " * service ``" o.name "``"))
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(print (indent 4 (or (extract-text o.description) "(no description)")))
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(print)
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(print (indent 4 "**Service parameters**\n"))
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(each [_ param (ipairs o.parameters)]
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(print-option param 4)))
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(fn sort-options [module]
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(table.sort module (fn [a b] (< a.name b.name)))
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module)
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(let [raw (yaml.load (io.read "*a"))
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modules {}]
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(each [_ option (ipairs raw)]
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(each [_ path (ipairs option.declarations)]
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(let [e (or (. modules path) [])]
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(table.insert e option)
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(tset modules path e))))
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(each [name module (pairs modules)]
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(print (read-preamble name))
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(let [options (sort-options module)]
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(each [_ o (ipairs options)]
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(if (= o.type "parametrisable s6-rc service definition")
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(print-service o)
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(print-option o))))))
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;; for each element el, add to table modules keyed on
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;; el.declarations
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;; for each value in modules
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;; print title
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;; elements = (sort elements on el.name)
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;; for each el in elements
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;; is option or service? print whichever
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;;
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