https://github.com/scalacenter/scala3-migrate

A tool to help migrating from Scala 2 to Scala 3
https://github.com/scalacenter/scala3-migrate

scala scala3 tool

Last synced: 6 days ago
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A tool to help migrating from Scala 2 to Scala 3

• Host: GitHub
• URL: https://github.com/scalacenter/scala3-migrate
• Owner: scalacenter
• License: apache-2.0
• Created: 2020-09-09T07:44:38.000Z (over 4 years ago)
• Default Branch: main
• Last Pushed: 2024-12-20T09:07:34.000Z (8 days ago)
• Last Synced: 2024-12-20T09:31:03.609Z (8 days ago)
• Topics: scala, scala3, tool
• Language: Scala
• Homepage: https://docs.scala-lang.org/scala3/guides/migration/scala3-migrate.html
• Size: 1.04 MB
• Stars: 110
• Watchers: 9
• Forks: 24
• Open Issues: 9
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE

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========

# Scala 3 migration plugin for sbt

## User documentation

The complete documentation of `sbt-scala3-migrate` can be found in [docs.scala-lang.org](https://docs.scala-lang.org/scala3/guides/migration/scala3-migrate.html).

## Usage

### Requirements 

- sbt 1.5 or higher

- java 8 or 11

- scala 2.13, preferred 2.13.15

### Installation

```

// project/plugins.sbt

addSbtPlugin("ch.epfl.scala" % "sbt-scala3-migrate" % "0.6.2")

```

### Porting the build

To port a build to Scala 3, run the following commands in order, in each project of the build: 

1. `migrateDependencies ` helps you update the list of `libraryDependencies`

2. `migrateScalacOptions ` helps you update the list of `scalacOptions`

3. `migrateSyntax ` fixes a number of syntax incompatibilities between Scala 2.13 and Scala 3 

4. `migrateTypes ` tries to make your code compile with Scala 3 by inferring a few types and resolving a few implicits.

## Contributions and feedbacks are welcome

The tool is still under development, and **we would love to hear from you**.

Every feedback will help us build a better tool: typos, clearer log messages, better documentation, bug reports, ideas of features,

so please open [GitHub issues](https://github.com/scalacenter/scala3-migrate).

## Acknowledgments

 This tool is developed by the [Scala Center](https://scala.epfl.ch)