Gradle Liquibase plugin not using specified contexts - gradle

Question

We have a Gradle project which uses Liquibase, and our build file has:
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'org.liquibase:liquibase-gradle-plugin:1.1.1'
classpath 'org.liquibase:liquibase-core'
}
}
apply plugin: 'liquibase'
Yet when we try to update our project via:
gradle update -Dliquibase.contexts=foobar
(tried with --contexts too)
it seems to ignore the specified contexts and runs all the changesets instead.
Example:
changeSet(author: 'me', id: 'someId1', context: 'somethingElse') { // This runs, but shouldn't
// ...
changeSet(author: 'me', id: 'someId2', context: 'foobar') { // Should only run this
The project was forked at one point, so maybe we're misinterpreting the documentation (original, new) but it seems like this should work.
Do we need a different plugin/version? Are we calling it wrong?

Answer 1

Derp, looks like you need to grab the contexts manually in your build file:
main {
if (project.hasProperty('contexts')) {
contexts contexts
}
url 'someurl'
username 'username'
password 'pass'
}
Then pass it in via:
gradle update -Pcontexts=schema

Answer 2

You should define your contexts inside task
task('liquibase_dev') << {
liquibase {
activities {
main {
changeLogFile changeLog
url 'jdbc:postgresql://localhost:5432/test'
username 'postgres'
password 'admin'
contexts 'DEV'
}
}
}
}
Liquibase changelog:
<changeSet author="xxx" context="DEV" id="1591257804177-1" ...>
<changeSet author="xxx" context="PROD" id="1591257804177-2" ...>
Then you can run like:
./gradlew :liquibase_dev update
Only the first changeset will be executed

Answer 3

Newer plugin (2.0.3), same problem and slightly different solution, 'cause I'm keeping a default context.
liquibase.gradle (snippet):
if (!project.hasProperty("contexts")) {
project.ext.contexts = "dev"
}
liquibase {
activities {
main {
driver "${datasource_driver}"
url "${datasource_url}"
username "${datasource_username}"
password "${datasource_password}"
changeLogFile "src/main/resources/db/changelog/master.xml"
defaultSchemaName ""
logLevel "info"
contexts contexts
}
}
}
tasks.liquibaseUpdate.dependsOn(tasks.classes)
gradle.properties (snippet):
liquibaseTaskPrefix=liquibase
So, now it's safe to call:
./gradlew liquibaseUpdate # to apply contexts=dev
And:
./gradlew liquibaseUpdate -Pcontexts=test # to apply contexts=test