These are the build dependencies:Īs you can see, there are none. We'll also see a build scan for this simple build. Just create a adle and run it!Įnter fullscreen mode Exit fullscreen mode
I'm doing this to demonstrate that you can use the global installation of Gradle on your system to build projects, and to simplify the example setup. In the examples below, I am deliberately using gradle and not. Let's start by considering a very simple build script and inspecting the build classpath, which is on the Build Dependencies section in a build scan. To do so, we will be using Gradle build scans as a convenient visualization tool. Let’s see what it looks like through a simple example. If you're familiar with the Gradle build lifecycle, it may help to think of the first step as being in the configuration phase, while the second step is in the execution phase.Īs with any other compilation in the JVM, compiling a script requires a compile classpath, which we call the build compile classpath. gradlew app:assembleDebug from the command line), Gradle will execute that instruction in two distinct steps: first it compiles your build scripts, and then it runs your build. When you execute a build (whether that's clicking the green arrow in Android Studio or running. This process is automated by Gradle, regardless of whether your script is written in Groovy (. How does this relate to classpaths and class loading? That's up next.īuild scripts in a Gradle build must be compiled, and then they must be run, in order to execute your build. The build is a high-level abstraction over the more fundamental SDK tool operations that compile and run your software applications. Now we can give a simplified definition for "the build": As an example, Gradle's java plugin registers a task, compileJava, of type JavaCompile during its execution, that task will invoke the Java compiler, javac. Instead we “run builds” with a “build tool.” Under the hood, these build tools (such as Gradle), invoke the more fundamental SDK tools.
In this part, we will be focusing on the classpaths available to the build process itself.Īs I alluded to in the first post, modern JVM development (nor least Android development) rarely if ever involves direct interactions with SDK tools like javac or kotlinc. If you haven’t read part 1, I would recommend checking it out first, as it lays the foundation for what is to follow. Welcome to part 2 in my series on classpaths and class loading in Gradle projects. The settings.The cover image represents Gradle's class loader hierarchy. For android project created with gradle 7.2, the project gradle is very different from the previous ones, it now only contains these // Top-level build file where you can add configuration options common to all sub-projects/modules.
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