This is an attempt at adding (awesome) support for the Ceylon programming language in IntelliJ IDEA.

This plugin is being written using IntelliJ 13. It will work on both Community and Ultimate editions. We do not guarantee that this plugin will work with previous versions of IntelliJ (12 and below), as we may use APIs that were introduced in version 13.

We embed most of the raw Ceylon installation in the plugin, so you won't necessarily have to download Ceylon separately. You may need a local repository though.

While we are working very hard at making this a great plugin, only a few features are working at the moment:

• .ceylon files recognition
• parsing and syntax highlighting
• project make / file compilation
• running a top-level method
• nifty lang features (code commenting, braces/quotes matching, code folding, structure viewing)

Other features will come soon!

For the moment, we do not provide any pre-built version of the plugin, since it is under heavy development. If you want to try it, here are the steps to follow:

If you want to start testing or hacking on this plugin, you will need:

• a Community or Ultimate version of IntelliJ 13
• the following plugins enabled: "Plugin DevKit", "UI Designer" + "UI Designer (core)", "PsiViewer" (optional but recommended)
• a clone of https://github.com/JetBrains/intellij-community/ is highly recommended for hacking since you will likely have to debug code from the IntelliJ platform
• a clone of https://github.com/ceylon/ceylon-ide-intellij (obviously)
• a clone of https://github.com/ceylon/ceylon-ide-common (shared between the Eclipse plugin and the IntelliJ plugin)

• make sure you are using IntelliJ 13 (won't work with the current stable version 12.x)
• open the project ceylon-ide-intellij in IDEA
• go to File > Project Structure > SDKs
• click on the '+' icon and add a new JDK pointing to a Java SDK 1.7
• click on the '+' icon and add a new IntelliJ Platform Plugin SDK pointing to where IntelliJ is installed (the correct folder should be preselected)
• in the Project part, set the Project SDK to the previously created IntelliJ plugin SDK
• set the Project language level to 7.0
• set the Project compiler output to any directory you want (for example out)
• apply changes and close the settings dialog
• in the IDE's Preferences > File Types, under Recognized File Types, register *.car as Archive files
• in Run > Edit configurations, create a new run configuration with type Plugin and leave the default options
• run this configuration and enjoy writing Ceylon in IntelliJ!

We tried to reduce as much as possible the number of external dependencies, the plugin should be self-sufficient.