Developer Setup

Requirements

• Docker v19.03.10+
• Golang v1.19+
• GNU Make- Mac (Preinstalled) - Windows: [Download](http://gnuwin32.sourceforge.net/packages/make.htm) - Ubuntu: `sudo apt-get install build-essential libssl-dev`

How to setup dev environment

The following guide will walk through how to run DevLake's frontend (config-ui) and backend in dev mode.

1. Navigate to where you would like to install this project and clone the repository:

   git clone https://github.com/apache/incubator-devlake.git
   cd incubator-devlake

2. Install dependencies for plugins:

   • RefDiff

3. Install Go packages

   cd backend
   go get
   cd ..

4. Copy the sample config file to new local file:

   cp .env.example .env

5. Update the following variables in the file .env:

   • DB_URL: Replace mysql:3306 with 127.0.0.1:3306

6. Start the MySQL and Grafana containers:

   Make sure the Docker daemon is running before this step.

   docker-compose up -d mysql grafana

7. Run devlake and config-ui in dev mode in two separate terminals:

   # run devlake
   make dev
   # run config-ui
   make configure-dev

   For common errors, please see Troubleshooting.

8. Config UI is running at localhost:4000

   • For how to use Config UI, please refer to our tutorial

Running Tests

# install mockery
go install github.com/vektra/mockery/v2@latest
# generate mocking stubs
make mock
# run tests
make test

DB migrations

Please refer to the Migration Doc.

Using DevLake API

All DevLake APIs (core service + plugin API) are documented with swagger. To see API doc live with swagger:

- Install [swag](https://github.com/swaggo/swag).
- Run `make swag` to generate the swagger documentation.
- Visit `http://localhost:8080/swagger/index.html` while `devlake` is running.

Developing dashboards

To access Grafana, click View Dashboards button in the top left corner of Config UI, or visit localhost:3002 (username: admin, password: admin).

For provisioning, customizing, and creating dashboards, please refer to our Grafana Doc.

Troubleshooting

Q: Running `make dev` yields error: `libgit2.so.1.3: cannot open share object file: No such file or directory`

A: `libgit2.so.1.3` is required by the gitextractor plugin and should be . Make sure your program can find `libgit2.so.1.3`. `LD_LIBRARY_PATH` can be assigned like this if your `libgit2.so.1.3` is located at `/usr/local/lib`:

```sh
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
```

Note that the version has to be pinned to 1.3.0. If you don't have it, you may need to build it manually with CMake from [source](https://github.com/libgit2/libgit2/releases/tag/v1.3.0).

Compiling

- Compile all plugins: `make build-plugin`
- Compile specific plugins: `PLUGIN=<PLUGIN_NAME> make build-plugin`
- Compile server: `make build`
- Compile worker: `make build-worker`

References

To dig deeper into developing and utilizing our built-in functions and have a better developer experience, feel free to dive into our godoc reference.