A sbt plugin for publishing your project to the Maven central repository through the REST API of Sonatype Nexus. Deploying artifacts to Sonatype repository is a requirement for synchronizing your projects to the Maven central repository. sbt-sonatype plugin enables two-step release of your Scala/Java projects.
publishSigned(with sbt-pgp plugin)- Create GPG signed artifacts to a local staging repository.
- Make sure adding
publishTo := sonatypePublishToBundle.valueto your build.sbt
sonatypeBundleRelease(New in sbt-sonatype 3.4)- This command will prepare a new remote staging repository at Sonatype. If there are existing staging repositories that have the same description with
sonatypeSessionNamekey, sbt-sonatype will discard them properly. - Then, it will upload the artifacts in the local staging folder to the remote staging repository. Uploading artifacts as a bundle is much faster than uploading each artifact to Sonatype. For example, thousands of files can be uploaded in several minutes with bundle upload.
- Finally, this command will perform the close and release steps at the Sonatype Nexus repository to meet the Maven central requirements.
- This command will prepare a new remote staging repository at Sonatype. If there are existing staging repositories that have the same description with
After these steps, your project will be synchronized to the Maven central within ten minutes. No longer need to enter the web interface of Sonatype Nexus repository to perform these release steps.
- Release notes
- sbt-sonatype is available for sbt 1.x series.
- You can also use sbt-sonatype for publishing non-sbt projects (e.g., Maven, Gradle, etc.)
- Blog: Blazingly Fast Release to Sonatype
-
Create a Sonatype Repository account
- Follow the instruction in the Central Repository documentation site.
- Create a Sonatype account
- Create a GPG key
- Open a JIRA ticket to get a permission for synchronizing your project to the Central Repository (aka Maven Central).
- Follow the instruction in the Central Repository documentation site.
-
Related articles:
Import sbt-sonatype plugin and sbt-pgp plugin to use sonatypeBundleRelease and publishSigned
commands:
// For sbt 1.x (sbt-sonatype 2.3 or higher)
addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "(version)")
addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.1.2")
// For sbt 0.13.x (upto sbt-sonatype 2.3)
addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "(version)")
addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.0.0")- If downloading the sbt-sonatype plugin fails, check the repository in the Maven central: https://repo1.maven.org/maven2/org/xerial/sbt/sbt-sonatype_2.12_1.0. It will be usually synced within 10 minutes.
To use sbt-sonatype, you need to create a bundle of your project artifacts (e.g., .jar, .javadoc, .asc files, etc.) into a local folder specified by sonatypeBundleDirectory. By default, the folder is (project root)/target/sonatype-staging/(version). Add the following publishTo setting to create a local bundle of your project:
publishTo := sonatypePublishToBundle.value
⚠️ Legacy HostBy default, this plugin is configured to use the legacy Sonatype repository
oss.sonatype.org. If you created a new account on or after February 2021, addsonatypeCredentialHostsettings:// For all Sonatype accounts created on or after February 2021 ThisBuild / sonatypeCredentialHost := "s01.oss.sonatype.org"
With this setting, publishSigned will create a bundle of your project to the local staging folder. If the project has multiple modules, all of the artifacts will be assembled into the same folder to create a single bundle.
If isSnapshot.value is true (e.g., if the version name contains -SNAPSHOT), publishSigned task will upload files to the Sonatype Snapshots repository without using the local bundle folder.
If necessary, you can tweak several configurations:
// [Optional] The local staging folder name:
sonatypeBundleDirectory := (ThisBuild / baseDirectory).value / target.value.getName / "sonatype-staging" / (ThisBuild / version).value
// [Optional] If you need to manage unique session names by yourself, change this default setting:
sonatypeSessionName := s"[sbt-sonatype] ${name.value} ${version.value}"
// [Optional] Timeout until giving up sonatype close/promote stages. Default is 60 min.
sonatypeTimeoutMillis := 60 * 60 * 1000
// [If you cannot use bundle upload] Use this setting when you need to uploads artifacts directly to Sonatype
// With this setting, you cannot use sonatypeBundleXXX commands
publishTo := sonatypePublishTo.value
// [If necessary] Settings for using custom Nexus repositories:
sonatypeCredentialHost := "s01.oss.sonatype.org"
sonatypeRepository := "https://s01.oss.sonatype.org/service/local"For the authentication to Sonatype API, you need to set your Sonatype account information (user name and password) in the global sbt settings. To protect your password, never include this file within your project.
credentials += Credentials("Sonatype Nexus Repository Manager",
"oss.sonatype.org",
"(Sonatype user name)",
"(Sonatype password)")sbt-sonatype is an auto-plugin, which will automatically configure your build. There are a few settings though that you need to define by yourself:
sonatypeProfileName- This is your Sonatype account profile name, e.g.
org.xerial. If you do not set this value, it will be the same with theorganizationvalue.
- This is your Sonatype account profile name, e.g.
pomExtra- A fragment of Maven's pom.xml. You must define url, licenses, scm and developers tags in this XML to satisfy Central Repository sync requirements.
Example settings:
// Your profile name of the sonatype account. The default is the same with the organization value
sonatypeProfileName := "(your organization. e.g., org.xerial)"
// To sync with Maven central, you need to supply the following information:
publishMavenStyle := true
// Open-source license of your choice
licenses := Seq("APL2" -> url("http://www.apache.org/licenses/LICENSE-2.0.txt"))
// Where is the source code hosted: GitHub or GitLab?
import xerial.sbt.Sonatype._
sonatypeProjectHosting := Some(GitHubHosting("username", "projectName", "[email protected]"))
// or
sonatypeProjectHosting := Some(GitLabHosting("username", "projectName", "[email protected]"))
// or if you want to set these fields manually
homepage := Some(url("https://(your project url)"))
scmInfo := Some(
ScmInfo(
url("https://github.com/(account)/(project)"),
"scm:[email protected]:(account)/(project).git"
)
)
developers := List(
Developer(id="(your id)", name="(your name)", email="(your e-mail)", url=url("(your home page)"))
)The basic steps for publishing your artifact to the Central Repository are as follows:
publishSignedto deploy your artifact to a local staging repository.sonatypeBundleRelease(since sbt-sonatype 3.4)- This command is equivalent to running
; sonatypePrepare; sonatypeBundleUpload; sonatypeRelease. - Internally
sonatypeReleasewill dosonatypeCloseandsonatypePromotein one step.sonatypeClosecloses your staging repository at Sonatype. This step verifies Maven central sync requirement, GPG-signature, javadoc and source code presence, pom.xml settings, etc.sonatypePromotecommand verifies the closed repository so that it can be synchronized with Maven central.
- This command is equivalent to running
Note: If your project version has "SNAPSHOT" suffix, your project will be published to the snapshot repository of Sonatype, and you cannot use sonatypeBundleUpload or sonatypeRelease command.
Usually, we only need to run sonatypeBundleRelease command in sbt-sonatype:
- sonatypeBundleRelease
- This will run a sequence of commands
; sonatypePrepare; sonatypeBundleUpload; sonatypeReleasein one step. - You must run
publishSignedbefore this command to create a local staging bundle.
- This will run a sequence of commands
- sonatypePrepare
- Drop the existing staging repositories (if exist) and create a new staging repository using
sonatypeSessionNameas a unique key. - This will update
sonatypePublishTosetting. - For cross-build projects, make sure running this command only once at the beginning of the release process.
- Usually using sonatypeBundleUpload should be sufficient, but if you need to parallelize artifact uploads, run
sonatypeOpenbefore each upload to reuse the already created stging repository.
- Usually using sonatypeBundleUpload should be sufficient, but if you need to parallelize artifact uploads, run
- Drop the existing staging repositories (if exist) and create a new staging repository using
- sonatypeBundleUpload
- Upload your local staging folder contents to a remote Sonatype repository.
- sonatypeOpen
- This command is necessary only when you need to parallelize
publishSignedtask. For small/medium-size projects, using onlysonatypePreparewould work. - This opens the existing staging repository using
sonatypeSessionNameas a unique key. If it doesn't exist, create a new one. It will updatesonatypePublishTo
- This command is necessary only when you need to parallelize
- sonatypeRelease (repositoryId)?
- Close (if needed) and promote a staging repository. After this command, the uploaded artifacts will be synchronized to Maven central.
- sonatypeDropAll (sonatypeProfileName)?
- Drop all staging repositories.
- sonatypeReleaseAll (sonatypeProfileName)?
- Close and promote all staging repositories (Useful for cross-building projects)
- sonatypeBundleClean
- Clean a local bundle folder
- sonatypeClean
- Clean a remote staging repository which has
sonatypeSessionNamekey.
- Clean a remote staging repository which has
- sonatypeStagingProfiles
- Show the list of staging profiles, which include profileName information.
- sonatypeLog
- Show the staging activity logs
- sonatypeClose
- Close the open staging repository (= requirement verification)
- sonatypePromote
- Promote the closed staging repository (= sync to Maven central)
- sonatypeDrop
- Drop an open or closed staging repository
> ; publishSigned; sonatypeBundleReleaseFor cross-building projects, use + publishSigned:
> ; + publishSigned; sonatypeBundleReleaseWhen you are sharing a working folder, you can parallelize publishSigned step for each module or for each Scala binary version:
- Run multiple publishSigned tasks in parallel
- Finally, run
sonatypeBundleRelease
If you are not sharing any working directory (e.g., Travis CI), to parallelize the release process, you need to publish a bundle for each build because Sonatype API only supports uploading one bundle per a staging repository.
Here is an example to parallelize your build for each Scala binary version:
- Set
sonatypeSessionName := "[sbt-sonatype] ${name.value}-${scalaBinaryVersion.value}-${version.value}"to use unique session keys for individual Scala binary versions. - For each Scala version, run:
sbt ++(Scala version) "; publishSigned; sonatypeBundleRelease"
For sbt-sonatype 2.x:
To perform publishSigned and sonatypeBundleRelease with sbt-release plugin, define your custom release process as follows:
import ReleaseTransformations._
releaseCrossBuild := true // true if you cross-build the project for multiple Scala versions
releaseProcess := Seq[ReleaseStep](
checkSnapshotDependencies,
inquireVersions,
runClean,
runTest,
setReleaseVersion,
commitReleaseVersion,
tagRelease,
// For non cross-build projects, use releaseStepCommand("publishSigned")
releaseStepCommandAndRemaining("+publishSigned"),
releaseStepCommand("sonatypeBundleRelease"),
setNextVersion,
commitNextVersion,
pushChanges
)If your Maven project (including Gradle, etc.) is already deployed to the staging repository of Sonatype, you can use sbt sonatypeReleaseAll (sonatypeProfileName) command
for the synchronization to the Maven central (Since version 0.5.1).
Prepare the following two files:
addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "(version)")credentials += Credentials("Sonatype Nexus Repository Manager",
"oss.sonatype.org",
"(Sonatype user name)",
"(Sonatype password)")Alternatively, the credentials can also be set with the environment variables SONATYPE_USERNAME and SONATYPE_PASSWORD.
Then, run sonatypeReleaseAll command by specifying your sonatypeProfileName. If this is org.xerial, run:
$ sbt "sonatypeReleaseAll org.xerial"
Releasing sbt-sonatype to Sonatype:
## Add a new git tag
$ git tag v3.9.x
$ ./sbt
> publishSigned
> sonatypeBundleRelease
```
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