Scala Cli, The Scala CLI makes it easier to compile, run, test, and package Scala code. Move to sbt or mill when your project needs multi-module builds, custom tasks, or large CI pipelines. When you import a ScalaCLI project into IntelliJ IDEA, or when you use the scala-cli setup-ide . scala-cli. The repl command starts a Scala REPL, which lets you interactively run your code and inspect its results: 基本 Scala ファイルの実行 *. Putting a JAR file on the classpath with your script If you happen to need a JAR file when running your Scala 3 script, you can run it like this: This document describes as scala-cli behaves if run as scala command. Scala CLIを使うとき、どちらも次のようにトップレベルに関数を定義できます. It provides various functionalities such as starting a REPL, compiling and executing scripts, testing, formatting, and even setting up IDE support for Scala projects. Contribute to delorum/scala-cli development by creating an account on GitHub. The scala-cli CLI makes it easier to compile, run, test, and package Scala code. Platform The --platform option can be used to choose the platform, which should be used to compile and run application. To start a REPL session, just type scala at your operating system command line, and you’ll see this: This is a summary of options that are available for each subcommand of the scala-cli command. Start the Scala interpreter (aka the “REPL”) by launching scala from where it was unarchived. scala ファイルと *. Scala CLI is a relatively new project and we should battle-proof some of its features before we commit to support them as part of the official scala command. It lets you compile, run, test, and package your Scala code (and more!) - VirtusLab/scala-cli Scala CLI compiles your code with its compile command: The ‘scala-cli’ command offers a versatile way to interact with the Scala programming language. Scala Book Command-Line I/O Outdated Notice This page has a new version. Whether you intend to use Scala 2 or 3, this is usually not an issue because most projects use a build tool that will use the correct version of Scala irrespective of the one installed “globally”. 5. Next steps Continue to the next tutorial in the getting started with sbt series, and learn about testing Scala code with sbt in the command line. Command line options always take priority over using directives when a clash occurs, allowing to override configurations defined in sources. To get started you can read the documentation, or just install and enjoy scala-cli. It installs everything necessary to use the latest Scala release from a command line: Scala. Scala CLI combines all of the features you need to learn and use Scala in your scripts, playgrounds and (single-module) projects. Scala CLI offers multiple native ways to be installed so most users should find a suitable method. Scala can be used for scripting too. These instructions will install the coursier CLI `cs` itself, as well as a typical Scala development environment. scala command. See more information in SIP-46 You want to get started using the Scala REPL (“Read-Evaluate-Print-Loop”) command line interpreter, including understanding some of its basic features, such as tab completion, starting the REPL with different options, and dealing with errors. Scala CLI is a command-line tool to interact with the Scala language. 0, Scala CLI has become the official scala runner of the language (for more information refer to SIP-46). com この記事では、Scalaの総合ツールであるScala CLIを利用する様子を紹介し、Scala CLIでScalaのちょっとしたアプリケーションを作れることを示します。 Scalaって Scala 如何从命令行运行Scala文件 在本文中，我们将介绍如何使用命令行运行Scala文件的方法。 Scala是一种强大的编程语言，提供了很多灵活的运行方式，包括使用命令行。 接下来，我们将详细说明如何使用命令行来运行Scala文件，并提供一些示例说明。 The scala-cli CLI makes it easier to compile, run, test, and package Scala code. To install Scala, it is recommended to use cs setup, the Scala installer powered by Coursier. 0, Scala CLI has become the official runner for the language, replacing the old runner implementation under the scala script. Next, at your operating system command line, run your script like this: $ scala Hello. To run Scala from the command-line, download the binaries and unpack the archive. json). The Scala REPL (“Read-Evaluate-Print-Loop”) is a command-line interpreter that you use as a “playground” area to test your Scala code. Mar 18, 2024 · As a result, the Scala team has introduced a new tool called Scala-CLI that makes it easy for beginners to get started and write non-trivial Scala applications. Scala CLI brings all the features that the commands above provide and expand them with incremental compilation, dependency management, packaging and much more. Run Scala programs with any library directly in your browser without downloads or installations using Scastie. Contribute to yadavan88/ScalaCLI-Cheatsheet development by creating an account on GitHub. 0 or newer on your machine, you can use Scala CLI under the scala command. 18. IntelliJ IDEA uses this BSP configuration to import the project. sc extension. You want to get started using the Scala REPL (“Read-Evaluate-Print-Loop”) command line interpreter, including understanding some of its basic features, such as tab completion, starting the REPL with different options, and dealing with errors. org 基本的にはScalaでスクリプティングするためのツールのようで、便利ツールや教育用途での使用が想定されているようですが、スクリプトを実行可能jarやDockerイメージとしてパッケージングしたり、Scala. sc ファイルは ammonite と呼ばれる Scala のツールに対応したファイル形式です. jsやScala Nativeでのコンパイルにも対応 Unix has a long tradition with scripting — small programs represented as text files that can be inspected, modified, and executed. A main difference between the two is that a script doesn’t have to have an @main method; it can just consist of a series of statements and expressions. To get ready to show for loops, if expressions, and other Scala constructs, let’s take a look at how to handle command-line input and output with Scala. In larger projects, the directives are usually put in project. Java properties - learn how to pass Java properties to Scala CLI. Nevertheless, you can Basics Scala CLI is a command line tool that executes a given sub-command on the inputs it’s provided with, using a given configuration to produce a result. No complicated mechanisms, tasks, plugins or extensions: just a single-module. As of Scala 3. sc ファイルの両方をサポートしています. cs setup installs the Scala 3 compiler and runner by default (the scalac and scala commands, respectively). What is a good way of parsing command line arguments in Scala? Related: How do I parse command line arguments in Java? このチュートリアルでは、テンプレートから Scala プロジェクトを作成する方法を見ていきます。 あなた自身のプロジェクトを始めるスタート地点として使えます。 Scala のデファクトのビルドツール sbt を用います。 sbt はあなたのプロジェクトに関連した様々なタスク、とりわけコンパイル . It lets you compile, run, test, and package your Scala code (and more!) We propose to replace current script that is installed as scala with Scala CLI - a batteries included tool to interact with Scala. Snippets - learn how to use command line snippets with Scala CLI. To start a REPL session, just type scala at your operating system command line, and you’ll see this: Before running scala source code, you need to compile scala code by using scalac filename. scala. js (scala. A sneak peek at the new scala runner, Scala CLI, including a comparison to its predecessor and a showcase of the tool. Scala CLI combines all the features you need to learn and use Scala in your scripts, playgrounds and (single-module) projects. Writing output As we’ve already shown, you write output to standard out (STDOUT) using println: Scala CLI combines all the features you need to learn and use Scala in your scripts, playgrounds and (single-module) projects. They each differ slightly and have different capabilities and limitations. Moreover, it helps to easily manage complex issues like Scala version selection, JVM selection, packaging an application, etc. Contribute to keynmol/scala-cli-mcp development by creating an account on GitHub. Learn about Scala’s features in bite-sized pieces by stepping through our Tour of Scala. If you install Scala 3. この記事は Scala Advent Calendar 2023の19日目の記事です。19日って「あ〜今月が終わる」ってなるちょうど良い塩梅の日付ですね。 qiita. compile Compile Scala code. For Scala 3 installation instructions refer here. scala-cliでREPLを起動する際に、コマンドライン引数--dependencyで使用するライブラリを指定することが可能です。 $ scala-cli repl --dependency org. Available platforms are: JVM (jvm) Scala. For more details on using Scala CLI via the scala command, refer to this doc. No browser, no copy-pasting from Maven Central. For more information about cs, read coursier-cli documentation. bsp/scala-cli. command, a BSP configuration file is being generated (. Verbosity - learn how to control logs verbosity in Scala CLI. 1. js and Scala Native - learn how Scala CLI supports these non-JVM platforms Piping - covers how Scala CLI allows to work with piped sources. scala files, and Scala scripts, which are in files that end with the . The most important sub-commands are: compile compiles your code (excluding tests) run runs your code using the provided arguments (it’s also used when no other command is provided) How to install Scala CLI The run command runs your Scala code: We have a dedicated Scala Native guide as well. or Continue learning Scala interactively online on Scala Exercises. Scala CLI as an implementation of the scala command As of Scala 3. Command Line Interface for scala programs. scala Hello, world For a little script with no dependencies, that’s all you need to do. In this guide, I will show you how I approach Scala in 2026 when onboarding new developers: what Scala is really good at, how to set up a practical workflow, how to read and write your first programs, and which language features are worth learning early. Note that even when installing the latest Scala 3 version, its scala command may refer to an older Scala CLI version. Specific compile configurations can be specified with both command line options and using directives defined in sources. See more information in SIP-46 Scala CLI: Compiling and running scripts Scala CLI currently makes a distinction between Scala applications, which are in . Initially, we propose to limit the set of features available in the scala command by default. It enables multiple features such as: Coding assistance (highlighting, completion, formatting, refactorings, etc Search Scaladex and generate dependency strings from your terminal. scalacheck::scalacheck::1. A cheatsheet of useful Scala-CLI commands. *. This document describes as scala-cli behaves if run as scala command. js | scala-js | scalajs | js) Scala Native (scala-native | scalanative | native) Passing the --platform along with --js or --native is not Scala CLI is a command-line tool to interact with the Scala language. This article requires knowledge of the Scala language (how to define a class or method) as well as Scala tooling (the REPL, and basics of dependency management and unit tests). The plugin adds support for the Scala language. Since Scala CLI is quite feature-packed, we do not want to expose all the features and options to all the Scala users from the very beginning. Scala-CLI is a command-line tool primarily designed for building Scala applications. Why is that? Scala CLI as of version v1. - ghstrider/scaladex-cli A Scala re-implementation of a PERL script to query SSH fingerprints - tomtastic/whocan Intellij 的 AI Agent Junie 比 opencode 跟 gemini-cli 更會寫 Scala 看來是背後有跑 Scala Language Service Provider 現在這些 AI cli Agent 底層跑的模型大家都差不多，要再更好用，就是要幫 AI 增加 domain specific knowledge MCP 可以直接跟外部系統互動，調資料 Use scala-cli for quick scripts, experiments, and small services. 0 Welco compile Compile Scala code. 0 uses three kinds of script wrappers depending on the project's configuration. To execute compiled scala file you need to type following command: scala filename This section of the documentation contains a set of recipes that show how to use Scala CLI in particular situations. To demonstrate how to run a script A sneak peek at the new scala runner, Scala CLI, including a comparison to its predecessor and a showcase of the tool. virtuslab. It simplifies compiling, running, and packaging Scala applications, eliminating the need for a comprehensive build system. The Package command is restricted and requires setting the --power option to be used. uzk0, wu8k, r6z7zq, m6py, jy2e, vtlt, j8uxy, i4vpa, g70ph, jgdlf,