A java client that can calculate the total size of a Maven/Gradle dependency transitively. Sometimes I want to know how a new dependency will impact the size of my fat jar, and I want to know it without adding the dependency into the project and building. Unfortunately I did not find a gradle plugin for that and decided to write it by myself.
The code parses the POM with all its parents to calculate the dependency tree, all provided/system/test dependencies are excluded. Then, it goes through the resolved dependencies and check sizes of corresponding jar files.
The client accepts a dependency identifier in the Gradle format and produces a result with with information about the total size of the dependency.
Kotlin:
val client = DepsClient(repositories = setOf("https://repo1.maven.org/maven2"))
val result: DependencyAnalyzeResult = client.analyze("org.glassfish.jersey.core:jersey-client:2.27")
println(result)Java:
public class JavaExample {
public static void main(String[] args) {
LinkedHashSet<String> repositories = new LinkedHashSet<>();
repositories.add("https://repo1.maven.org/maven2");
DepsClient client = new DepsClient(repositories);
DependencyAnalyzeResult result = client.analyze("org.glassfish.jersey.core:jersey-client:2.27");
System.out.println(result);
}
}For both examples above, the output would be
org.glassfish.jersey.core:jersey-client:2.27 (181563)
javax.ws.rs:javax.ws.rs-api:2.1 (127509)
org.glassfish.jersey.core:jersey-common:2.27 (1140395)
javax.ws.rs:javax.ws.rs-api:2.1 (127509)
javax.annotation:javax.annotation-api:1.2 (26366)
org.glassfish.hk2.external:javax.inject:2.5.0-b42 (5951)
javax.inject:javax.inject:1 (2497)
org.glassfish.hk2:osgi-resource-locator:1.0.1 (20235)
org.jmockit:jmockit:1.18 (598339)
com.google.code.findbugs:jsr305:3.0.0 (33031)
junit:junit:4.12 (314932)
org.hamcrest:hamcrest-core:1.3 (45024)
org.testng:testng:6.8.21 (836806)
org.apache.ant:ant:1.7.0 (1289806)
org.apache.ant:ant-launcher:1.7.0 (11734)
xerces:xercesImpl:2.8.1 (1212965)
xml-apis:xml-apis:1.3.03 (195119)
xml-resolver:xml-resolver:1.1 (60047)
xml-apis:xml-apis:1.3.03 (195119)
junit:junit:4.10 (253160)
org.hamcrest:hamcrest-core:1.1 (76643)
jmock:jmock:1.1.0 (102598)
junit:junit:3.8.1 (121070)
junit:junit:4.0 (105601)
org.easymock:easymock:2.2 (62696)
org.beanshell:bsh:2.0b4 (281694)
com.beust:jcommander:1.27 (55585)
org.yaml:snakeyaml:1.12 (270779)
javax.persistence:persistence-api:1.0 (52150)
javax.servlet:servlet-api:2.5 (105112)
javax:javaee-api:6.0 (979616)
org.glassfish.hk2.external:javax.inject:2.5.0-b42 (5951)
javax.inject:javax.inject:1 (2497)
Total size: 8691 Kb (8900099)