Initialise Project, must read PSI-Files
Hey,
i am currently working on https://github.com/carymrobbins/intellij-haskforce, and i want to improve the project-import experience, by adding modules and marking the source-code/tests-directories correctly
The only sane way is to use the PSI-Files to get the relevant information from the cabal-files (custom format). But i am getting multiple error:
- Project is not yet initialized: Project '/Users/LeanderK/Documents/Haskell/XY' XY
- Assertion failed: Access to psi files should be performed only after startup activity
- Project is not yet initialized: Project '/Users/LeanderK/Documents/Haskell/XY' XY
Is there a way to achieve what i want to do? For example a callback where i call the setup code only after i can get access to PSI-Files?
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To work with existing files' PSI, postStartupActivity is indeed the easiest way.
To modify module roots, you can use ModuleRootModificationUtil or ModuleRootManager.getModifiableModel directly.
postStartupActivity extension point
in your StartupActivity implementation, in runActivity, add this:
hmm ok, thank you. But then i have another problem. How can i add source-paths to existing modules?
Modules don't have the method and i don't see how i can get a ModuleBuilder out of an Module.
ProjectStructureDetector may help.
Override this class to provide automatic detection of modules and libraries for 'Create from existing sources' mode of the new project/module wizard.
I never used it so can't suggest more than what the comments say. It seems to be made for this purpose.
I solved it in another way,it is possible to create PSI-files nonetheless. You just have to do it "from scratch":
val text = try {new String(virtualFile.contentsToByteArray(), StandardCharsets.UTF_8)
} catch {
case e: IOException =>
LOG.warn(s"Could not read CabalFile $virtualFile: $e", e)
return None
}
PsiFileFactory.getInstance(defaultProject).createFileFromText(
virtualFile.getName, CabalLanguage.INSTANCE, text
) match {
case psiFile: CabalFile => Some(psiFile)
case other =>
LOG.warn(new AssertionError(s"Expected CabalFile, got: ${other.getClass}"))
None
}
as long as it works
;)