From 502a9dc7dd7fe8db44cf0fee924aaaa0307bf54e Mon Sep 17 00:00:00 2001
From: ntbang0901 <121003585+ntbang0901@users.noreply.github.com>
Date: Mon, 2 Nov 2026 19:15:59 +0700
Subject: [PATCH] fix(kotlin): compile a folder of sibling Maven projects in
the Kotlin bridge (#842)
compile::plan only fell back to Gradle when the folder had no build file, so a folder of sibling Maven projects failed with "no supported build system" in the Kotlin editor compilation and Build Project. It now falls back to Maven when the model has Maven projects, after the existing Gradle fallback.
Fixes #814
Co-authored-by: ntbang0901 <121003585+ntbang0901@users.noreply.github.com>
---
crates/ide-build/src/compile/mod.rs | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/crates/ide-build/src/compile/mod.rs b/crates/ide-build/src/compile/mod.rs
index 9cd0ea26..9cbd6e48 100644
--- a/crates/ide-build/src/compile/mod.rs
+++ b/crates/ide-build/src/compile/mod.rs
@@ -185,8 +185,10 @@ pub fn plan(root: &Path, model: &BuildModel, kind: BuildKind, file: Option<&Path
None => None,
};
let dir = module_dir.clone().unwrap_or_else(|| root.to_path_buf());
+ // A folder of sibling projects has no build file itself; its Maven projects are built one by one.
let system = detect_dir(&dir, model, root)
.or_else(|| if model.gradle.is_some() { Some(BuildSystem::Gradle) } else { None })
+ .or_else(|| model.maven.as_ref().filter(|m| !m.projects.is_empty()).map(|_| BuildSystem::Maven))
.ok_or_else(|| IdeError::not_found("no supported build system (Maven, Gradle, Cargo, Go, TypeScript) found"))?;
let module = module_dir.as_deref().filter(|d| *d != root);
let title = match module {
@@ -814,6 +816,17 @@ mod tests {
("pnpm", &["run".to_owned(), "build".to_owned()][..])
);
+ let siblings = tmp.path().join("siblings");
+ write(&siblings, "core/pom.xml", "core");
+ write(&siblings, "system/pom.xml", "system");
+ let model = crate::load(&siblings, &tmp.path().join("cache3"), None);
+ let p = plan(&siblings, &model, BuildKind::Build, None).unwrap();
+ assert_eq!(p.system, BuildSystem::Maven);
+ assert_eq!(
+ p.steps.iter().map(|s| s.cwd.clone()).collect::>(),
+ [siblings.join("core"), siblings.join("system")]
+ );
+
let none = tmp.path().join("none");
std::fs::create_dir_all(&none).unwrap();
assert!(plan(&none, &BuildModel::default(), BuildKind::Build, None).is_err());