![]() ![]() Neovim is a modern fork of Vim that supports LSP out-of-box, Using Neovim as Metals frontend (advanced) ![]() In there you can call testOnly and other tasks with This lets you log into the sbt session IntelliJ has started. We can also log into the existing sbt session using the thin client. See also Igal Tabachnik’s Using BSP effectively in IntelliJ and Scala for more details. When you make changes to the code and save them ( Cmd-S on macOS), IntelliJ will invoke sbt to do Open Preferences, search BSP and check “build automatically on file save”, and uncheck “export sbt projects to Bloop before import”:.Select sbt (recommended) as the tool to import the BSP workspace:.Type “Existing” to find “Import Project From Existing Sources”: From menubar, click New > “Project From Existing Sources”, or Find Action ( Cmd-Shift-P on macOS) and.To use the BSP approach, do not use Open button on the Project tab:.Install Scala plugin on the Plugins tab.❌ Using sbt side-by-side requires double build ✅ Uses Zinc + Scala compiler for type checking ⚠️ Uses its own compiler for type checking, but can be configured to use scalac The benefit of using BSP with IntelliJ is that you’re using sbt to do the actual build work, so if you are the kind of programmer who had sbt session up on the side, this avoids double compilation. Thankfully, modern IntelliJ supports alternative build servers including sbt via the Build Server Protocol (BSP). While many users are happy with the experience, depending on the code base some of the compilation errors may be false, it may not work well with plugins that generate sources, and generally you might want to code with the identical build semantics as sbt. Importing the build to IntelliJ means that you’re effectively using IntelliJ as the build tool and the compiler while you code (see also compiler-based highlighting). Using sbt as IntelliJ IDEA build server (advanced) See Debug Code page on IntelliJ documentation for more details on how to navigate an interactive debugging session. Interactive debugging can be started by right-clicking on an unit test, and selecting “Debug ‘‘.”Īlternatively, you can click the green “run” icon on the left part of the editor near the unit test.IntelliJ supports interactive debugging by setting break points in the code:.Per compiler-based highlighting, IntelliJ can be configured to use the Scala compiler for error highlighting. IntelliJ Scala plugin uses its own lightweight compilation engine to detect errors, which is fast but sometimes incorrect. Once the import process is complete, open a Scala file to see that code completion works.From Projects, open a directory containing a build.sbt file.Install Scala plugin on the Plugins tab:.This is a more traditional approach that might be more reliable than using BSP approach. IntelliJ integrates with many build tools, including sbt, to import the project. IntelliJ IDEA is an IDE created by JetBrains, and the Community Edition is open source under Apache v2 license. This lets you log into the sbt session Metals has started. From Terminal section, type in sbt -client.While Metals uses sbt as the build server, we can also log into the same sbt session using a thin client. See Debugging page on VS Code documentation for more details on how to navigate an interactive debugging session. When the test hits a break point, you can inspect the values of the variables: Interactive debugging can be started by right-clicking on an unit test, and selecting “Debug Test.”.Metals supports interactive debugging by setting break points in the code:.When you make changes to the code and save them ( Cmd-S on macOS), Metals will invoke sbt to do Use the following setting to opt-out some of the subprojects from BSP. Once the import process is complete, open a Scala file to see that code completion works:.From the menubar, run View > Command Palette… ( Cmd-Shift-P on macOS) “Metals: Switch build server”, and select “sbt”.Open a directory containing a build.sbt file.Metals in turn supports different build servers including sbt via the Build Server Protocol (BSP). Metals is an open source language server for Scala, which canĪct as the backend for VS Code and other editors that support LSP. Using sbt as IntelliJ IDEA build server.Two of the popular IDEs in Scala are Metals and IntelliJ IDEA, Most programmers today use an Integrated Development Environment, or IDE for short. While it’s possible to code Scala with just an editor and sbt, ![]()
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