No classes generated for my plug-in

Created October 24, 2015 23:19

For some reason, generating the .zip file for my plug-in generates a .zip file with no classes in the jar file:

$ jar tf /d/tmp/kobalt-intellij-plugin.jar
META-INF/MANIFEST.MF
META-INF/plugin.xml

Looking at the directory of my plug-in, I can find no bin directory, so no .class files anywhere. Changing the output directory doesn't change anything.

My plug-in works fine if I launch it as a debug configuration, though, IDEA just refuses to generate .class files for it.

Any idea what I'm doing wrong?

It's written in Kotlin, in case it matters.

Thanks.

5 comments

Imants Cekusins

Created October 24, 2015 23:24

rebuild project first?

maybe Prepare Plugin builds the project, maybe it does not. I usually rebuild, then prepare.

Cedric Beust

Created October 25, 2015 00:14

Yup, first thing I did. It's definitely building but it's not generating any class files:

Information:Kotlin: Kotlin JPS plugin version 1.0.0-beta-1038-IJ141-17
Information:Kotlin: Using kotlin-home = C:\Users\cbeust\.IntelliJIdea14\config\plugins\Kotlin\kotlinc
Information:Kotlin: Kotlin Compiler version 1.0.0-beta-1038
Information:10/24/2015 5:11 PM - Compilation completed successfully with 3 warnings in 3s 343ms
C:\Users\cbeust\kotlin\kobalt-intellij-plugin\src\com\beust\kobalt\intellij\DistributionDownloader.kt
Warning:(17, 25) Kotlin: Parameter 'level' is never used
Warning:(43, 25) Kotlin: Parameter 'level' is never used
C:\Users\cbeust\kotlin\kobalt-intellij-plugin\src\com\beust\kobalt\intellij\KobaltWeigher.kt
Warning:(13, 13) Kotlin: Variable 'project' is never used

$ ls -ltr
total 1421
drwxr-xr-x    1 cbeust   Administ        0 Oct 15 20:47 annotations/
drwxr-xr-x    1 cbeust   Administ        0 Oct 21 19:06 src/
drwxr-xr-x    1 cbeust   Administ     4096 Oct 23 17:37 lib/
-rw-r--r--    1 cbeust   Administ      155 Oct 23 17:37 README.md
drwxr-xr-x    1 cbeust   Administ        0 Oct 23 17:37 META-INF/
-rw-r--r--    1 cbeust   Administ      615 Oct 23 21:41 kobalt-intellij-plugin.iml
-rw-r--r--    1 cbeust   Administ  2902360 Oct 24 16:11 kobalt-intellij-plugin.zip

$ find . -name \*class

Imants Cekusins

Created October 25, 2015 15:56

why not try to build with gradle as in this example:

https://github.com/JetBrains/kotlin-examples/tree/master/gradle/mixed-java-kotlin-hello-world

Cedric Beust

Created October 25, 2015 16:51

This is just a simple Kotlin example, it doesn't appear to be an IDEA plug-in written in Kotlin. As far as I know, the only way to build such plug-ins is from IDEA itself.

Cedric Beust

Created October 25, 2015 17:25

I found the problem: the output directory simply said "out", which apparently confused IDEA. Instead, you need to specify an absolute path, e.g. "/Users/...{project}/out".

It would be nice if IDEA produced an error when it can't create the files, though.

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