Publishing Settings

Configure your project for publishing to Maven Central using sbt-ci-release.

Prerequisites

The publishing settings require the sbt-ci-release plugin. Add it to your project/plugins.sbt:

addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "VERSION")

This plugin handles:

• Automated versioning from git tags
• GPG signing
• Publishing to Sonatype/Maven Central
• GitHub Actions integration

See the sbt-ci-release documentation for setup instructions.

Configuration

Add the following to your build.conf:

homepage = "https://github.com/your-org/your-project"

licenses = ["MIT"]

versionScheme = "early-semver"

developers = [
  {
    id = "johndoe"
    name = "John Doe"
    email = "john@example.com"
    url = "https://johndoe.dev"
  }
]

Supported Licenses

The following license identifiers are supported, matching sbt.librarymanagement.License:

Identifier	License
Apache2	Apache License 2.0
MIT	MIT License
CC0	Creative Commons Zero
GPL3	GNU General Public License v3.0

Version Schemes

Valid values for versionScheme:

Value	Description
early-semver	SemVer with early compatibility (recommended for Scala)
semver-spec	Strict SemVer
pvp	Package Versioning Policy (Haskell-style)
always	Always compatible
strict	Strict versioning

Developer Format

Each developer entry requires all four fields:

Field	Description
id	Developer ID (e.g., GitHub username)
name	Full name
email	Email address
url	Personal/professional URL

Multiple developers can be specified:

developers = [
  {
    id = "dev1"
    name = "Developer One"
    email = "dev1@example.com"
    url = "https://dev1.example.com"
  },
  {
    id = "dev2"
    name = "Developer Two"
    email = "dev2@example.com"
    url = "https://dev2.example.com"
  }
]

Complete Example

A full build.conf with publishing settings:

name = "my-library"
organization = "com.example"
scalaVersion = "3.3.4"

dependencies = [
  "org.typelevel:cats-core:2.13.0"
]

testDependencies = [
  "org.scalatest:scalatest:3.2.19"
]

# Publishing (requires sbt-ci-release)
homepage = "https://github.com/example/my-library"
licenses = ["Apache2"]
versionScheme = "early-semver"
developers = [
  {
    id = "maintainer"
    name = "Project Maintainer"
    email = "maintainer@example.com"
    url = "https://example.com"
  }
]