Installation

Setup

Check out this repository. It needs to be located in an folder called zeta.

To setup Zeta for development mode, you need:

• Java 11 JDK
• sbt version >= 1.1.6
• Docker
• IntelliJ Ultimate Edition. This is free for students.
• MongoDB <= 3.x
• Node.js
• Yarn: npm install -g yarn (under Windows you can use the yarn installer)

You need to setup 3 things:

1. MongoDB:
   • To start, call in command line: mongod(.exe) --dbpath "*full path to where I want my Docker files to be stored*".
   • You can also create a batch/shell script containing this command. In Windows you should replace mongod with the full path to mongod in double quotes. It also helps to add a pause / read at the end to catch possible errors if MongoDB shuts down unexpectedly.
2. Frontend:
   • Make sure Yarn is installed.
   • Clone the yFiles repositories at the same level as your Zeta repo. It should look like this:

       .
       ├── yFiles-dev-key
       ├── yFiles-for-html
       │   ├── impl
       │   └── typings
       └── zeta
           ├── api
           ├── frontend
           └── mongodb

   • cd into the frontend directory.
   • Call yarn.
   • To start, call yarn serve.
3. IntelliJ IDEA:
   • File | Open -> folder zeta/api
   • VCS | Enable Version Control Integration -> git
   • Navigate to build.sbt and enable sbt integration if asked.
   • View | Tool Windows | SBT -> press the "Reload all sbt projects" button.
   • Run | Edit Configurations... -> + -> Play 2 App
     • Play2 Module = zeta-api (Make sure it is plain zeta-api without a number. If there is not plain zeta-api, wait for indexing.)
     • Environment variables -> ...
       • name = ZETA_DEPLOYMENT value = development
   • Run the new configuration.

Error Handling

Run

• Use Java SDK 11 (via File -> Project Structure -> Project -> Project SDK)
• Exclude Target Sources in Project Structure (via File -> Project Structure -> Modules)
• Use Scala SDK 2.12.12 (via File -> Project Structure -> Global Libraries)
• Afterwards press: File | Invalidate Caches/ Restart .... Then try to run Play2 again. If you get the error message: Unrecognized option: -J-Xmx4G remove the -J- from the .sbtopts file.
• View | Tool Windows | SBT -> press the "Reload all sbt projects" button.

Build

• Use sbt compile in a terminal or compile in the sbt shell.

Start

To start Zeta in development mode, you need to start 3 things.

1. MongoDB: Execute your script or call in command line: mongod(.exe) --dbpath "*full path to where I want my Docker files to be stored*".

2. Frontend: In command line, navigate to zeta/frontend/. Now call: yarn serve.

3. IntelliJ IDEA: Make sure that all sbt packages are loaded and indexing is complete. This may take some time. Feel free to grab a snack or coffee while waiting. Start the Play2 configuration you created. If you are getting an error in zeta/api/server/server.sbt file caused by ZetaBuild, try to delete the two folders:

   • zeta/api/project/project
   • zeta/api/project/target

   Afterwards press: File | Invalidate Caches/ Restart .... Then try to run Play2 again.

If you change something in the code you just need to press refresh and IntelliJ will recompile the project.