Create external dependencies and add it to other project with gradle - gradle

Question

I have two spring boot projet
A and B
would like to create a new projet to put common thing there
A
B
commons
how to add commons to A and B like a external dependencies?

Answer 1

Assume your project layout as below:
project
|- common
|- proja
|- projb
you need settings.gradle
rootProject.name = 'project'
include 'common'
include 'proja'
include 'projb'
then you need to update your build.gradle under project like this:
plugins {
id 'org.springframework.boot' version '1.5.4.RELEASE'
}
subprojects { // common configurations for all subprojects
apply plugin: 'groovy'
apply plugin: 'org.springframework.boot'
repositories {
jcenter()
}
dependencies { // common dependencies for all subprojects
compile 'org.codehaus.groovy:groovy-all:2.4.10'
testCompile 'org.springframework.boot:spring-boot-starter-test'
testCompile 'org.spockframework:spock-spring:1.0-groovy-2.4'
}
}
project ("proja") {
dependencies { // proja-specific dependencies
compile 'com.google.guava:guava:21.0'
compile project(":common")
}
}
project ("projb") {
dependencies { // projb-specific dependencies
compile project(":common")
}
}
Let me know if this works.

Answer 2

external solution seem the way to go
my commons build.gradle file
apply plugin: 'java-library-distribution'
repositories {
mavenCentral()
maven { url "https://repo.spring.io/snapshot" }
maven { url "https://repo.spring.io/milestone" }
}
dependencies {
compile group: 'org.springframework.boot', name: 'spring-boot-starter-data-jpa', version: '2.0.0.M2'
}
distributions {
main{
baseName = 'commons-code'
}
}
sourceCompatibility = 1.8
targetCompatibility = 1.8
tasks.withType(JavaCompile) {
options.compilerArgs = ["-Xlint:unchecked", "-Xlint:deprecation", "-parameters"]
}
In my main project
i have an build.gradle
in the dependencies section i have
compile project (':commons-code')
and in the settings.gradle file i have
include ":commons-code"
project(":commons-code").projectDir = file("/home/bob/dev/project/commons/")