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(.module:
[lux (#- Source)
[abstract
["." monad (#+ do)]]
[control
["." try (#+ Try)]
[concurrency
["." promise (#+ Promise)]]]
[data
["." text
["%" format (#+ format)]]
[collection
["." dictionary]
["." row]]
[format
["." binary]
["." tar]]]
[time
["." instant]]
[tool
[compiler
[meta
["." io #_
["#" context (#+ Extension)]]]]]
[world
["." file]]]
[//
[cli (#+ Source Export)]])
(def: file
"library.tar")
(def: no_ownership
tar.Ownership
(let [commons (: tar.Owner
{#tar.name tar.anonymous
#tar.id tar.no_id})]
{#tar.user commons
#tar.group commons}))
(def: #export (library fs sources)
(-> (file.System Promise) (List Source) (Promise (Try tar.Tar)))
(do (try.with promise.monad)
[files (io.enumerate fs sources)]
(|> (dictionary.entries files)
(monad.map try.monad
(function (_ [path source_code])
(do try.monad
[path (|> path
(text.replace_all (\ fs separator) .module_separator)
tar.path)
source_code (tar.content source_code)]
(wrap (#tar.Normal [path
(instant.from_millis +0)
($_ tar.and
tar.read_by_owner tar.write_by_owner
tar.read_by_group tar.write_by_group
tar.read_by_other)
..no_ownership
source_code])))))
(\ try.monad map row.from_list)
(\ promise.monad wrap))))
(def: #export (export fs [sources target])
(-> (file.System Promise) Export (Promise (Try Any)))
(do {! (try.with promise.monad)}
[tar (\ ! map (binary.run tar.writer)
(..library fs sources))]
(|> ..file
(format target (\ fs separator))
(\ fs write tar))))
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