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How-to-build.md

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How to build project

This document helps people to compile and build the project in your maven and set your IDE.

Build Project

Because we are using Git submodule, we recommend don't use GitHub tag or release page to download source codes for compiling.

Maven behind Proxy

If you need to execute build behind the proxy, edit the .mvn/jvm.config and put the follow properties:

-Dhttp.proxyHost=proxy_ip
-Dhttp.proxyPort=proxy_port
-Dhttps.proxyHost=proxy_ip
-Dhttps.proxyPort=proxy_port 
-Dhttp.proxyUser=username
-Dhttp.proxyPassword=password

Build from GitHub

  1. Prepare git, JDK8 and Maven 3.6+

  2. Clone project

    If you want to build a release from source codes, provide a tag name by using git clone -b [tag_name] ... while cloning.

    git clone --recurse-submodules https://github.com/apache/skywalking.git
cd skywalking/

OR

git clone https://github.com/apache/skywalking.git
cd skywalking/
git submodule init
git submodule update

  3. Run ./mvnw clean package -DskipTests

  4. All packages are in /dist (.tar.gz for Linux and .zip for Windows).

Build from Apache source code release

  • What is Apache source code release?

For each official Apache release, there is a complete and independent source code tar, which is including all source codes. You could download it from SkyWalking Apache download page. No git related stuff required when compiling this. Just follow these steps.

  1. Prepare JDK8 and Maven 3.6+
  2. Run ./mvnw clean package -DskipTests
  3. All packages are in /dist.(.tar.gz for Linux and .zip for Windows).

Advanced compile

SkyWalking is a complex maven project, including many modules, which could cause long compiling time. If you just want to recompile part of the project, you have following options

  • Compile agent and package

./mvnw package -Pagent,dist

or

make build.agent

If you intend to compile a single one plugin, such as in the dev stage, you could

cd plugin_module_dir & mvn clean package

  • Compile backend and package

./mvnw package -Pbackend,dist

or

make build.backend

  • Compile UI and package

./mvnw package -Pui,dist

or

make build.ui

Build docker images

We can build docker images of backend and ui with Makefile located in root folder.

Refer to Build docker image for more details.

Setup your IntelliJ IDEA

NOTICE: If you clone the codes from GitHub, please make sure that you had finished step 1 to 3 in section Build from GitHub, if you download the source codes from the official website of SkyWalking, please make sure that you had followed the steps in section Build from Apache source code release.

  1. Import the project as a maven project
  2. Run ./mvnw compile -Dmaven.test.skip=true to compile project and generate source codes. Because we use gRPC and protobuf.
  3. Set Generated Source Codes folders.
    • grpc-java and java folders in apm-protocol/apm-network/target/generated-sources/protobuf
    • grpc-java and java folders in oap-server/server-core/target/generated-sources/protobuf
    • grpc-java and java folders in oap-server/server-receiver-plugin/receiver-proto/target/generated-sources/protobuf
    • grpc-java and java folders in oap-server/exporter/target/generated-sources/protobuf
    • grpc-java and java folders in oap-server/server-configuration/grpc-configuration-sync/target/generated-sources/protobuf
    • antlr4 folder in oap-server/oal-grammar/target/generated-sources