lune/CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

Added

• Implemented a new task scheduler which resolves several long-standing issues:
  • Issues with yielding across the c-call/metamethod boundary no longer occur when calling certain async APIs that Lune provides.
  • Ordering of interleaved calls to task.spawn/task.defer is now completely deterministic, defer is now guaranteed to run last even in these cases.
  • The minimum wait time possible when using task.wait and minimum delay time using task.delay are now much smaller, and only limited by the underlying OS implementation. For most systems this means task.wait and task.delay are now accurate down to about 5 milliseconds or less.

Changed

• Type definitions are now bundled as part of the Lune executable, meaning they no longer need to be downloaded.
  • lune --generate-selene-types will generate the Selene type definitions file, replacing lune --download-selene-types
  • lune --generate-luau-types will generate the Luau type definitions file, replacing lune --download-luau-types
• Improved accuracy of Selene type definitions, strongly typed arrays are now used where possible
• Improve error handling and messages for net.serve
• Improve error handling and messages for stdio.prompt

Fixed

• Fixed remaining edge cases where the task and coroutine libraries weren't interoperable
• Fixed task.delay keeping the script running even if it was cancelled using task.cancel
• Fixed stdio.prompt blocking all other lua threads while prompting for input

0.4.0 - February 11th, 2023

Added

• Web Sockets

  net now supports web sockets for both clients and servers!
  Note that the web socket object is identical on both client and server, but how you retrieve a web socket object is different.

  Server API

  The server web socket API is an extension of the existing net.serve function.
  This allows for serving both normal HTTP requests and web socket requests on the same port.

  Example usage:

  net.serve(8080, {
      handleRequest = function(request)
          return "Hello, world!"
      end,
      handleWebSocket = function(socket)
          task.delay(10, function()
              socket.send("Timed out!")
              socket.close()
          end)
          -- The message will be nil when the socket has closed
          repeat
              local messageFromClient = socket.next()
              if messageFromClient == "Ping" then
                  socket.send("Pong")
              end
          until messageFromClient == nil
      end,
  })
  

  Client API

  Example usage:

  local socket = net.socket("ws://localhost:8080")
  
  socket.send("Ping")
  
  task.delay(5, function()
      socket.close()
  end)
  
  -- The message will be nil when the socket has closed
  repeat
      local messageFromServer = socket.next()
      if messageFromServer == "Ping" then
          socket.send("Pong")
      end
  until messageFromServer == nil
  

Changed

• net.serve now returns a NetServeHandle which can be used to stop serving requests safely.

  Example usage:

  local handle = net.serve(8080, function()
      return "Hello, world!"
  end)
  
  print("Shutting down after 1 second...")
  task.wait(1)
  handle.stop()
  print("Shut down succesfully")
  

• The third and optional argument of process.spawn is now a global type ProcessSpawnOptions.

• Setting cwd in the options for process.spawn to a path starting with a tilde (~) will now use a path relative to the platform-specific home / user directory.

• NetRequest query parameters value has been changed to be a table of key-value pairs similar to process.env. If any query parameter is specified more than once in the request url, the value chosen will be the last one that was specified.

• The internal http client for net.request now reuses headers and connections for more efficient requests.

• Refactored the Lune rust crate to be much more user-friendly and documented all of the public functions.

Fixed

• Fixed process.spawn blocking all lua threads if the spawned child process yields.

0.3.0 - February 6th, 2023

Added

• Added a new global stdio which replaces console

• Added stdio.write which writes a string directly to stdout, without any newlines

• Added stdio.ewrite which writes a string directly to stderr, without any newlines

• Added stdio.prompt which will prompt the user for different kinds of input

  Example usage:

  local text = stdio.prompt()
  
  local text2 = stdio.prompt("text", "Please write some text")
  
  local didConfirm = stdio.prompt("confirm", "Please confirm this action")
  
  local optionIndex = stdio.prompt("select", "Please select an option", { "one", "two", "three" })
  
  local optionIndices = stdio.prompt(
      "multiselect",
      "Please select one or more options",
      { "one", "two", "three", "four", "five" }
  )
  

Changed

• Migrated console.setColor/resetColor and console.setStyle/resetStyle to stdio.color and stdio.style to allow for more flexibility in custom printing using ANSI color codes. Check the documentation for new usage and behavior.
• Migrated the pretty-printing and formatting behavior of console.log/info/warn/error to the standard Luau printing functions.

Removed

• Removed printing functions console.log/info/warn/error in favor of regular global functions for printing.

Fixed

• Fixed scripts hanging indefinitely on error

0.2.2 - February 5th, 2023

Added

• Added global types for networking & child process APIs
  • net.request gets NetFetchParams and NetFetchResponse for its argument and return value
  • net.serve gets NetRequest and NetResponse for the handler function argument and return value
  • process.spawn gets ProcessSpawnOptions for its third and optional parameter

Changed

• Reorganize repository structure to take advantage of cargo workspaces, improves compile times

0.2.1 - February 3rd, 2023

Added

• Added support for string interpolation syntax (update to Luau 0.561)

• Added network server functionality using net.serve

  Example usage:

  net.serve(8080, function(request)
      print(`Got a {request.method} request at {request.path}!`)
  
      local data = net.jsonDecode(request.body)
  
      -- For simple text responses with a 200 status
      return "OK"
  
      -- For anything else
      return {
          status = 203,
          headers = { ["Content-Type"] = "application/json" },
          body = net.jsonEncode({
              message = "echo",
              data = data,
          })
      }
  end)
  

Changed

• Improved type definitions file for Selene, now including constants like process.env + tags such as readonly and mustuse wherever applicable

Fixed

• Fixed type definitions file for Selene not including all API members and parameters
• Fixed process.exit exiting at the first yield instead of exiting instantly as it should

0.2.0 - January 28th, 2023

Added

• Added full documentation for all global APIs provided by Lune! This includes over 200 lines of pure documentation about behavior & error cases for all of the current 35 constants & functions. Check the README to find out how to enable documentation in your editor.

• Added a third argument options for process.spawn:

  • cwd - The current working directory for the process
  • env - Extra environment variables to give to the process
  • shell - Whether to run in a shell or not - set to true to run using the default shell, or a string to run using a specific shell
  • stdio - How to treat output and error streams from the child process - set to "inherit" to pass output and error streams to the current process

• Added process.cwd, the path to the current working directory in which the Lune script is running

0.1.3 - January 25th, 2023

Added

• Added a --list subcommand to list scripts found in the lune or .lune directory.

0.1.2 - January 24th, 2023

Added

• Added automatic publishing of the Lune library to crates.io

Fixed

• Fixed scripts that terminate instantly sometimes hanging

0.1.1 - January 24th, 2023

Fixed

• Fixed errors containing ./ and / or ../ in the middle of file paths
• Potential fix for spawned processes that yield erroring with "attempt to yield across metamethod/c-call boundary"

0.1.0 - January 24th, 2023

Added

• task now supports passing arguments in task.spawn / task.delay / task.defer
• require now uses paths relative to the file instead of being relative to the current directory, which is consistent with almost all other languages but not original Lua / Luau - this is a breaking change but will allow for proper packaging of third-party modules and more in the future.
  • NOTE: If you still want to use the default Lua behavior instead of relative paths, set the environment variable LUAU_PWD_REQUIRE to true

Changed

• Improved error message when an invalid file path is passed to require
• Much improved error formatting and stack traces

Fixed

• Fixed downloading of type definitions making json files instead of the proper format
• Process termination will now always make sure all lua state is cleaned up before exiting, in all cases

0.0.6 - January 23rd, 2023

Added

• Initial implementation of Roblox's task library, with some caveats:

  • Minimum wait / delay time is currently set to 10ms, subject to change
  • It is not yet possible to pass arguments to tasks created using task.spawn / task.delay / task.defer
  • Timings for task.defer are flaky and deferred tasks are not (yet) guaranteed to run after spawned tasks

  With all that said, everything else should be stable!

  • Mixing and matching the coroutine library with task works in all cases
  • process.exit() will stop all spawned / delayed / deferred threads and exit the process
  • Lune is guaranteed to keep running until there are no longer any waiting threads

  If any of the abovementioned things do not work as expected, it is a bug, please file an issue!

Fixed

• Potential fix for spawned processes that yield erroring with "attempt to yield across metamethod/c-call boundary"

0.0.5 - January 22nd, 2023

Added

• Added full test suites for all Lune globals to ensure correct behavior
• Added library version of Lune that can be used from other Rust projects

Changed

• Large internal changes to allow for implementing the task library.
• Improved general formatting of errors to make them more readable & glanceable
• Improved output formatting of non-primitive types
• Improved output formatting of empty tables

Fixed

• Fixed double stack trace for certain kinds of errors

0.0.4 - January 21st, 2023

Added

• Added process.args for inspecting values given to Lune when running (read only)
• Added process.env which is a plain table where you can get & set environment variables

Changed

• Improved error formatting & added proper file name to stack traces

Removed

• Removed ... for process arguments, use process.args instead
• Removed individual functions for getting & setting environment variables, use process.env instead

0.0.3 - January 20th, 2023

Added

• Added networking functions under net

  Example usage:

  local apiResult = net.request({
  	url = "https://jsonplaceholder.typicode.com/posts/1",
  	method = "PATCH",
  	headers = {
  		["Content-Type"] = "application/json",
  	},
  	body = net.jsonEncode({
  		title = "foo",
  		body = "bar",
  	}),
  })
  
  local apiResponse = net.jsonDecode(apiResult.body)
  assert(apiResponse.title == "foo", "Invalid json response")
  assert(apiResponse.body == "bar", "Invalid json response")
  

• Added console logging & coloring functions under console

  This piece of code:

  local tab = { Integer = 1234, Hello = { "World" } }
  console.log(tab)
  

  Will print the following formatted text to the console, with syntax highlighting:

  {
      Integer = 1234,
      Hello = {
          "World",
      }
  }
  

  Additional utility functions exist with the same behavior but that also print out a colored tag together with any data given to them: console.info, console.warn, console.error - These print out prefix tags [INFO], [WARN], [ERROR] in blue, orange, and red, respectively.

Changed

• The json api is now part of net
  • json.encode becomes net.jsonEncode
  • json.decode become net.jsonDecode

Fixed

• Fixed JSON decode not working properly

0.0.2 - January 19th, 2023

Added

• Added support for command-line parameters to scripts

  These can be accessed as a vararg in the root of a script:

  local firstArg: string, secondArg: string = ...
  print(firstArg, secondArg)
  

• Added CLI parameters for downloading type definitions:

  • lune --download-selene-types to download Selene types to the current directory
  • lune --download-luau-types to download Luau types to the current directory

  These files will be downloaded as lune.yml and luneTypes.d.luau respectively and are also available in each release on GitHub.

0.0.1 - January 18th, 2023

Initial Release