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(.module:
[lux #*
["." host (#+ import:)]
[abstract
[monad (#+ do)]]
[control
["." io (#+ IO)]
["." try (#+ Try)]
["." exception (#+ exception:)]
[concurrency
["." promise (#+ Promise)]
["." stm]]]
[data
["." binary (#+ Binary)]
["." text
["%" format (#+ format)]
["." encoding]]
[number
["n" nat]]]
[world
[net (#+ URL)
["." uri]]]]
["." // #_
["#." artifact (#+ Artifact)
["#/." extension (#+ Extension)]]])
(type: #export Address
URL)
(type: #export User
Text)
(type: #export Password
Text)
(type: #export Identity
{#user User
#password Password})
(signature: #export (Repository !)
(: (-> Artifact Extension (! (Try Binary)))
download)
(: (-> Identity Artifact Extension Binary (! (Try Any)))
upload))
(def: #export (async repository)
(-> (Repository IO) (Repository Promise))
(structure
(def: (download artifact extension)
(promise.future (\ repository download artifact extension)))
(def: (upload identity artifact extension content)
(promise.future (\ repository upload identity artifact extension content)))
))
(signature: #export (Simulation s)
(: (-> Artifact Extension s
(Try [s Binary]))
on-download)
(: (-> Identity Artifact Extension Binary s
(Try s))
on-upload))
(def: #export (mock simulation init)
(All [s] (-> (Simulation s) s (Repository Promise)))
(let [state (stm.var init)]
(structure
(def: (download artifact extension)
(stm.commit
(do {! stm.monad}
[|state| (stm.read state)]
(case (\ simulation on-download artifact extension |state|)
(#try.Success [|state| output])
(do !
[_ (stm.write |state| state)]
(wrap (#try.Success output)))
(#try.Failure error)
(wrap (#try.Failure error))))))
(def: (upload identity artifact extension content)
(stm.commit
(do {! stm.monad}
[|state| (stm.read state)]
(case (\ simulation on-upload identity artifact extension content |state|)
(#try.Success |state|)
(do !
[_ (stm.write |state| state)]
(wrap (#try.Success [])))
(#try.Failure error)
(wrap (#try.Failure error))))))
)))
(import: java/lang/String)
(import: java/lang/AutoCloseable
["#::."
(close [] #io #try void)])
(import: java/io/OutputStream
["#::."
(flush [] #io #try void)
(write [[byte]] #io #try void)])
(import: java/net/URLConnection
["#::."
(setDoOutput [boolean] #io #try void)
(setRequestProperty [java/lang/String java/lang/String] #io #try void)
(getOutputStream [] #io #try java/io/OutputStream)])
(import: java/net/HttpURLConnection
["#::."
(setRequestMethod [java/lang/String] #io #try void)
(getResponseCode [] #io #try int)])
(import: java/net/URL
["#::."
(new [java/lang/String])
(openConnection [] #io #try java/net/URLConnection)
(openStream [] #io #try java/io/InputStream)])
(import: java/util/Base64$Encoder
["#::."
(encodeToString [[byte]] java/lang/String)])
(import: java/util/Base64
["#::."
(#static getEncoder [] java/util/Base64$Encoder)])
(import: java/io/InputStream)
(import: java/io/BufferedInputStream
["#::."
(new [java/io/InputStream])
(read [[byte] int int] #io #try int)])
(exception: #export (deployment-failure {code Int})
(exception.report
["Code" (%.int code)]))
(def: (basic-auth user password)
(-> User Password Text)
(format "Basic " (java/util/Base64$Encoder::encodeToString (encoding.to-utf8 (format user ":" password))
(java/util/Base64::getEncoder))))
(def: (url address artifact extension)
(-> Address Artifact Extension URL)
(format address uri.separator (//artifact.uri artifact) extension))
(def: buffer-size
(n.* 512 1,024))
(structure: #export (remote address)
(All [s] (-> Address (Repository IO)))
(def: (download artifact extension)
(let [url (..url address artifact extension)]
(do {! (try.with io.monad)}
[input (|> (java/net/URL::new url)
java/net/URL::openStream
(\ ! map (|>> java/io/BufferedInputStream::new)))
#let [buffer (binary.create ..buffer-size)]]
(loop [output (\ binary.monoid identity)]
(do !
[bytes-read (java/io/BufferedInputStream::read buffer +0 (.int ..buffer-size) input)]
(case bytes-read
-1 (do !
[_ (java/lang/AutoCloseable::close input)]
(wrap output))
_ (if (n.= ..buffer-size bytes-read)
(recur (\ binary.monoid compose output buffer))
(do !
[chunk (\ io.monad wrap (binary.slice 0 (.nat bytes-read) buffer))]
(recur (\ binary.monoid compose output chunk))))))))))
(def: (upload [user password] artifact extension content)
(do (try.with io.monad)
[connection (|> (..url address artifact extension)
java/net/URL::new
java/net/URL::openConnection)
#let [connection (:coerce java/net/HttpURLConnection connection)]
_ (java/net/HttpURLConnection::setRequestMethod "PUT" connection)
_ (java/net/URLConnection::setDoOutput true connection)
_ (java/net/URLConnection::setRequestProperty "Authorization" (..basic-auth user password) connection)
stream (java/net/URLConnection::getOutputStream connection)
_ (java/io/OutputStream::write content stream)
_ (java/io/OutputStream::flush stream)
_ (java/lang/AutoCloseable::close stream)
code (java/net/HttpURLConnection::getResponseCode connection)]
(case code
+200 (wrap [])
_ (\ io.monad wrap (exception.throw ..deployment-failure [code])))))
)
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