mill-git

A git version plugin for Mill build tool.

Requirements

• Mill
• An initialized git project (git init)

Usage

With PublishModule

build.sc:

import $ivy.`com.goyeau::mill-git::<latest version>`
import com.goyeau.mill.git.GitVersionedPublishModule
import mill.scalalib.JavaModule
import mill.scalalib.publish.{Developer, License, PomSettings, VersionControl}

object `jvm-project` extends JavaModule with GitVersionedPublishModule {
  override def pomSettings = PomSettings(
    description = "JVM Project",
    organization = "com.goyeau",
    url = "https://github.com/joan38/mill-git",
    licenses = Seq(License.MIT),
    versionControl = VersionControl.github("joan38", "mill-git"),
    developers = Seq(Developer("joan38", "Joan Goyeau", "https://github.com/joan38"))
  )
}

> mill show jvm-project.publishVersion
[1/1] show 
[2/2] com.goyeau.mill.git.GitVersionModule.version 
"0.0.0-470-6d0b3d9"

With DockerModule

build.sc:

import $ivy.`com.goyeau::mill-git::<latest version>`
import com.goyeau.mill.git.GitTaggedDockerModule
import mill.scalalib.JavaModule

object `docker-project` extends JavaModule with GitTaggedDockerModule {
  object docker extends DockerConfig with GitTaggedDocker {
    def tagLatest = true // Default is false
  }
}

> mill show docker-project.docker.tags
[1/1] show 
[6/6] docker-project.docker.tags 
[
    "docker-project:0.0.0-470-6d0b3d9",
    "docker-project:latest"
]

Custom options

Here is a custom configuration with the default option: build.sc:

import $ivy.`com.goyeau::mill-git::<latest version>`
import com.goyeau.mill.git.GitVersionModule
import mill.scalalib.JavaModule

object `job-project` extends JavaModule {
  def jobVersion = GitVersionModule.version(
    hashLength = 7,            // Sets the length of the commit hash to use as a version.
    withSnapshotSuffix = false // Add the -SNAPSHOT suffix so that versions gets pushed to the snapshot sonatype.
  )()
}

> mill show job-project.jobVersion
[1/1] show 
[2/2] com.goyeau.mill.git.GitVersionModule.version 
"0.0.0-470-6d0b3d9"

Versioning strategy

Tag	Tag distance	HEAD hash	Uncommitted changes	Uncommitted hash	gitVersion
v1.0.0	0	c85ec8a	false		1.0.0
v1.0.0	0	c85ec8a	true	303eee4	1.0.0-1-303eee4
v1.0.0	123	c85ec8a	false		1.0.0-123-c85ec8a
v1.0.0	123	c85ec8a	true	303eee4	1.0.0-124-303eee4
none		c85ec8a	false		c85ec8a
none		c85ec8a	true	303eee4	303eee4
none		none	true	303eee4	303eee4

Note that we are generating a git hash for the uncommitted changes (even if they are not committed yet).

Related projects

• Inspired by sbt-dynver
• sbt-git

Contributing

Contributions are more than welcome!
See CONTRIBUTING.md for all the information and getting help.