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|
(.`` (.`` (.require
[library
[lux (.except)
["@" target]
[abstract
["[0]" monad (.only Monad do)]]
[control
["[0]" function]
["[0]" io (.only IO)]
["[0]" maybe (.use "[1]#[0]" functor)]
["[0]" try (.only Try)]
["[0]" exception (.only exception)]
[concurrency
["[0]" atom]
["[0]" async (.only Async)]]]
[data
["[0]" bit (.use "[1]#[0]" equivalence)]
["[0]" text (.only)
["%" \\format (.only format)]]
[collection
["[0]" array (.only Array)]
["[0]" dictionary (.only Dictionary)]
["[0]" list (.use "[1]#[0]" functor)]]]
["[0]" ffi (.only import)
(.,, (.for "JavaScript" (.,, (.these ["[0]" node_js]))
"{old}" (.,, (.these ["node_js" //math]))
(.,, (.these))))]
["[0]" macro (.only)
["[0]" template]]
[math
[number
["i" int]]]]]
["[0]" \\parser]
[//
[file (.only Path)]
[shell (.only Exit)]])))
(exception .public (unknown_environment_variable [name Text])
(exception.report
"Name" (%.text name)))
(type .public (Environment !)
(Interface
(is (-> Any (! (List Text)))
available_variables)
(is (-> Text (! (Try Text)))
variable)
(is Path
home)
(is Path
directory)
(is (-> Exit (! Nothing))
exit)))
(def .public (environment monad environment)
(All (_ !) (-> (Monad !) (Environment !) (! \\parser.Environment)))
(do [! monad]
[variables (at environment available_variables [])
entries (monad.each ! (function (_ name)
(at ! each (|>> [name]) (at environment variable name)))
variables)]
(in (|> entries
(list.all (function (_ [name value])
(case value
{try.#Success value}
{.#Some [name value]}
{try.#Failure _}
{.#None})))
(dictionary.of_list text.hash)))))
(`` (def .public (async environment)
(-> (Environment IO) (Environment Async))
(implementation
(,, (with_template [<method>]
[(def <method>
(at environment <method>))]
[home]
[directory]
))
(,, (with_template [<method>]
[(def <method>
(|>> (at environment <method>) async.future))]
[available_variables]
[variable]
[exit]
)))))
(def .public (mock environment home directory)
(-> \\parser.Environment Path Path (Environment IO))
(let [@dead? (atom.atom false)]
(implementation
(def available_variables
(function.constant (io.io (dictionary.keys environment))))
(def (variable name)
(io.io (case (dictionary.value name environment)
{.#Some value}
{try.#Success value}
{.#None}
(exception.except ..unknown_environment_variable [name]))))
(def home
home)
(def directory
directory)
(def exit
(|>> %.int panic! io.io)))))
... 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
(with_expansions [<jvm> (these (import java/lang/String
"[1]::[0]")
(import (java/util/Iterator a)
"[1]::[0]"
(hasNext [] boolean)
(next [] a))
(import (java/util/Set a)
"[1]::[0]"
(iterator [] (java/util/Iterator a)))
(import (java/util/Map k v)
"[1]::[0]"
(keySet [] (java/util/Set k)))
(import java/lang/System
"[1]::[0]"
("static" getenv [] (java/util/Map java/lang/String java/lang/String))
("static" getenv "as" resolveEnv [java/lang/String] "io" "?" java/lang/String)
("static" getProperty [java/lang/String] "?" java/lang/String)
("static" exit [int] "io" void))
(def (jvm::consume iterator)
(All (_ a) (-> (java/util/Iterator a) (List a)))
(if (ffi.of_boolean (java/util/Iterator::hasNext iterator))
{.#Item (java/util/Iterator::next iterator)
(jvm::consume iterator)}
{.#End}))
)]
(for @.old (these <jvm>)
@.jvm (these <jvm>)
@.js (these (def default_exit!
(-> Exit (IO Nothing))
(|>> %.int panic! io.io))
(import NodeJs_Process
"[1]::[0]"
(exit [ffi.Number] "io" Nothing)
(cwd [] "io" Path))
(def (exit_node_js! code)
(-> Exit (IO Nothing))
(case (ffi.global ..NodeJs_Process [process])
{.#Some process}
(NodeJs_Process::exit (i.frac code) process)
{.#None}
(..default_exit! code)))
(import Browser_Window
"[1]::[0]"
(close [] Nothing))
(import Browser_Location
"[1]::[0]"
(reload [] Nothing))
(def (exit_browser! code)
(-> Exit (IO Nothing))
(case [(ffi.global ..Browser_Window [window])
(ffi.global ..Browser_Location [location])]
[{.#Some window} {.#Some location}]
(exec
(Browser_Window::close window)
(Browser_Location::reload location)
(..default_exit! code))
[{.#Some window} {.#None}]
(exec
(Browser_Window::close window)
(..default_exit! code))
[{.#None} {.#Some location}]
(exec
(Browser_Location::reload location)
(..default_exit! code))
[{.#None} {.#None}]
(..default_exit! code)))
(import Object
"[1]::[0]"
("static" entries [Object] (Array (Array ffi.String))))
(import NodeJs_OS
"[1]::[0]"
(homedir [] "io" Path)))
@.python (these (import os
"[1]::[0]"
("static" getcwd [] "io" ffi.String)
("static" _exit [ffi.Integer] "io" Nothing))
(import os/path
"[1]::[0]"
("static" expanduser [ffi.String] "io" ffi.String))
(import os/environ
"[1]::[0]"
("static" keys [] "io" (Array ffi.String))
("static" get [ffi.String] "io" "?" ffi.String)))
@.lua (these (ffi.import LuaFile
"[1]::[0]"
(read [ffi.String] "io" "?" ffi.String)
(close [] "io" ffi.Boolean))
(ffi.import (io/popen [ffi.String] "io" "try" "?" LuaFile))
(ffi.import (os/getenv [ffi.String] "io" "?" ffi.String))
(ffi.import (os/exit [ffi.Integer] "io" Nothing))
(def (run_command default command)
(-> Text Text (IO Text))
(do [! io.monad]
[outcome (io/popen [command])]
(case outcome
{try.#Success outcome}
(case outcome
{.#Some file}
(do !
[?output (LuaFile::read "*l" file)
_ (LuaFile::close file)]
(in (maybe.else default ?output)))
{.#None}
(in default))
{try.#Failure _}
(in default)))))
@.ruby (these (ffi.import Env
"[1]::[0]"
("static" keys [] (Array Text))
("static" fetch [Text] "io" "?" Text))
(ffi.import "fileutils" FileUtils
"[1]::[0]"
("static" pwd Path))
(ffi.import Dir
"[1]::[0]"
("static" home Path))
(ffi.import Kernel
"[1]::[0]"
("static" exit [Int] "io" Nothing)))
... @.php
... (these (ffi.import (exit [Int] "io" Nothing))
... ... https://www.php.net/manual/en/function.exit.php
... (ffi.import (getcwd [] "io" ffi.String))
... ... https://www.php.net/manual/en/function.getcwd.php
... (ffi.import (getenv "as" getenv/1 [ffi.String] "io" ffi.String))
... (ffi.import (getenv "as" getenv/0 [] "io" (Array ffi.String)))
... ... https://www.php.net/manual/en/function.getenv.php
... ... https://www.php.net/manual/en/function.array-keys.php
... (ffi.import (array_keys [(Array ffi.String)] (Array ffi.String)))
... )
... @.scheme
... (these (ffi.import (exit [Int] "io" Nothing))
... ... https://srfi.schemers.org/srfi-98/srfi-98.html
... (primitive Pair Any)
... (primitive PList Any)
... (ffi.import (get-environment-variables [] "io" PList))
... (ffi.import (car [Pair] Text))
... (ffi.import (cdr [Pair] Text))
... (ffi.import (car "as" head [PList] Pair))
... (ffi.import (cdr "as" tail [PList] PList)))
(these)))
(def .public default
(Environment IO)
(implementation
(def (available_variables _)
(with_expansions [<jvm> (|> (java/lang/System::getenv)
java/util/Map::keySet
java/util/Set::iterator
..jvm::consume
(list#each (|>> ffi.of_string))
io.io)]
(for @.old <jvm>
@.jvm <jvm>
@.js (io.io (if ffi.on_node_js?
(case (ffi.global Object [process env])
{.#Some process/env}
(|> (Object::entries [process/env])
(array.list {.#None})
(list#each (|>> (array.item 0) maybe.trusted)))
{.#None}
(list))
(list)))
@.python (at io.monad each (array.list {.#None}) (os/environ::keys []))
... Lua offers no way to get all the environment variables available.
@.lua (io.io (list))
@.ruby (io.io (array.list {.#None} (Env::keys [])))
... @.php (do io.monad
... [environment (..getenv/0 [])]
... (in (|> environment
... ..array_keys
... (array.list {.#None})
... (list#each (function (_ variable)
... [variable ("php array read" (as Nat variable) environment)]))
... (dictionary.of_list text.hash))))
... @.scheme (do io.monad
... [input (..get-environment-variables [])]
... (loop (again [input input
... output \\parser.empty])
... (if ("scheme object nil?" input)
... (in output)
... (let [entry (..head input)]
... (again (..tail input)
... (dictionary.has (..car entry) (..cdr entry) output))))))
)))
(def (variable name)
(template.let [(!fetch <method> <post>)
[(do io.monad
[value (|> name <method>)]
(in (case value
{.#Some value}
{try.#Success (<post> value)}
{.#None}
(exception.except ..unknown_environment_variable [name]))))]]
(with_expansions [<jvm> (!fetch (<| java/lang/System::resolveEnv ffi.as_string) ffi.of_string)]
(for @.old <jvm>
@.jvm <jvm>
@.js (io.io (if ffi.on_node_js?
(case (do maybe.monad
[process/env (ffi.global Object [process env])]
(array.item (as Nat name)
(as (Array Text) process/env)))
{.#Some value}
{try.#Success value}
{.#None}
(exception.except ..unknown_environment_variable [name]))
(exception.except ..unknown_environment_variable [name])))
@.python (!fetch os/environ::get |>)
@.lua (!fetch os/getenv |>)
@.ruby (!fetch Env::fetch |>)
))))
(def home
(io.run!
(with_expansions [<default> (io.io "~")
<jvm> (|> (java/lang/System::getProperty (ffi.as_string "user.home"))
(maybe#each (|>> ffi.of_string))
(maybe.else "")
io.io)]
(for @.old <jvm>
@.jvm <jvm>
@.js (if ffi.on_node_js?
(|> (node_js.require "os")
maybe.trusted
(as NodeJs_OS)
NodeJs_OS::homedir)
<default>)
@.python (os/path::expanduser "~")
@.lua (..run_command "~" "echo ~")
@.ruby (io.io (Dir::home))
... @.php (do io.monad
... [output (..getenv/1 ["HOME"])]
... (in (if (bit#= false (as Bit output))
... "~"
... output)))
... TODO: Replace dummy implementation.
<default>))))
(def directory
(io.run!
(with_expansions [<default> "."
<jvm> (|> (java/lang/System::getProperty (ffi.as_string "user.dir"))
(maybe#each (|>> ffi.of_string))
(maybe.else "")
io.io)]
(for @.old <jvm>
@.jvm <jvm>
@.js (if ffi.on_node_js?
(case (ffi.global ..NodeJs_Process [process])
{.#Some process}
(NodeJs_Process::cwd process)
{.#None}
(io.io <default>))
(io.io <default>))
@.python (os::getcwd [])
@.lua (do io.monad
[.let [default <default>]
on_windows (..run_command default "cd")]
(if (same? default on_windows)
(..run_command default "pwd")
(in on_windows)))
@.ruby (io.io (FileUtils::pwd))
... @.php (do io.monad
... [output (..getcwd [])]
... (in (if (bit#= false (as Bit output))
... "."
... output)))
... TODO: Replace dummy implementation.
(io.io <default>)))))
(def (exit code)
(with_expansions [<jvm> (do io.monad
[_ (java/lang/System::exit (ffi.as_int code))]
(in (undefined)))]
(for @.old <jvm>
@.jvm <jvm>
@.js (cond ffi.on_node_js?
(..exit_node_js! code)
ffi.on_browser?
(..exit_browser! code)
... else
(..default_exit! code))
@.python (os::_exit code)
@.lua (os/exit code)
@.ruby (Kernel::exit code)
... @.php (..exit [code])
... @.scheme (..exit [code])
)))))
|