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(.module:
[lux #*
[data
["." text]
[format
[context (#+ Context)]]
[collection
["." dictionary]]]
[io (#- run)]
[host (#+ import:)]])
## Do not trust the values of environment variables
## https://wiki.sei.cmu.edu/confluence/display/java/ENV02-J.+Do+not+trust+the+values+of+environment+variables
(import: java/lang/String)
(import: (java/util/Map$Entry k v)
(getKey [] k)
(getValue [] v))
(import: (java/util/Iterator a)
(hasNext [] boolean)
(next [] a))
(import: (java/util/Set a)
(iterator [] (Iterator a)))
(import: (java/util/Map k v)
(entrySet [] (Set (Map$Entry k v))))
(import: java/lang/System
(#static getenv [] (Map String String)))
(def: (consume-iterator f iterator)
(All [a b] (-> (-> a b) (Iterator a) (List b)))
(if (Iterator::hasNext iterator)
(#.Cons (f (Iterator::next iterator))
(consume-iterator f iterator))
#.Nil))
(def: (entry-to-kv entry)
(All [k v] (-> (Map$Entry k v) [k v]))
[(Map$Entry::getKey entry)
(Map$Entry::getValue entry)])
(def: #export read
(IO Context)
(io (|> (System::getenv)
Map::entrySet
Set::iterator
(consume-iterator entry-to-kv)
(dictionary.from-list text.hash))))
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