feat(gradle): link and unlink independent Gradle builds (#1413)

Opening a folder of independent Gradle builds selected only the first build. Link Gradle Projects… (pick a build's settings or build file) and Unlink on a build's root let an ordinary project window manage several independent builds without changing their scripts. The build model holds a list of Gradle builds; each keeps its own wrapper, working directory, environment, task routing and sync cache, keyed by the owning build directory. The links persist in the project's Gradle settings (linkedProjects); unlinking leaves files and saved run configurations alone. Existing includeBuild support is unchanged, and an explicitly linked build takes precedence over a composite that also includes it. Workspace windows keep Link/Unlink disabled.

Co-authored-by: gudcks0305 <[email protected]>

src/features/run/contextRun.ts

@@ -50,7 +50,8 @@ async function ensureConfigs() {
 export function projectContentRoots(): string[] {
   const own = validateProjectStructure(useProject.getState().settings?.projectStructure).contentRoots;
   // The build model keeps the folders of modules outside the project absolute.
-  const gradle = (useBuildModel.getState().model?.gradle?.projects ?? [])
+  const gradle = (useBuildModel.getState().model?.gradle ?? [])
+    .flatMap((g) => g.projects)
     .map((p) => p.dir)
     .filter((d) => isAbsolute(d));
   return [...new Set([...own, ...gradle])];

src/features/run/gradleRun.test.ts

@@ -1,9 +1,31 @@
-import { describe, expect, it } from "vitest";
-import type { GradleModel, RunConfig } from "@/platform/ipc";
+import { afterEach, describe, expect, it, vi } from "vitest";
+import type { GradleModel, ProjectInfo, RunConfig } from "@/platform/ipc";
 import { applicationConfig } from "./application";
-import { DELEGATED_DEBUG, delegatedGradleConfig, withTestEvents, wrapperGradleVersion } from "./gradleRun";
+import {
+  DELEGATED_DEBUG,
+  delegatedGradleConfig,
+  gradleDelegation,
+  withTestEvents,
+  wrapperGradleVersion,
+} from "./gradleRun";
 import { jdwpLaunch } from "./javaDebug";
 import { isJvmApplication } from "@/platform/javaLaunch";
+import { useBuildModel } from "@/platform/buildModel";
+import { useProject } from "@/platform/project";
+
+vi.mock("@/platform/ipc", async (original) => {
+  const real = await original<typeof import("@/platform/ipc")>();
+  return {
+    ...real,
+    isTauri: () => true,
+    call: (value: unknown) => value,
+    commands: {
+      ...real.commands,
+      runGradleInitScript: () => Promise.resolve("/tmp/openidea-gradle-run.gradle"),
+      fsReadText: () => Promise.resolve("distributionUrl=https://x/gradle-8.10-bin.zip"),
+    },
+  };
+});
 
 const ROOT = "/w/shop";
 const CORE = "/w/billing/modules/core";
@@ -143,3 +165,54 @@ describe("Gradle test runs", () => {
     expect(withTestEvents(twice, script)).toBe(twice);
   });
 });
+
+describe("delegation across independent builds", () => {
+  afterEach(() => {
+    useProject.setState({ project: null, settings: null });
+    useBuildModel.setState({ root: null, model: null, gradleOffline: false });
+  });
+
+  it("selects the module's linked build and preserves composite identity task paths", async () => {
+    const builds = ["first", "second"].map((dir) => ({
+      ...gradle,
+      dir,
+      command: `${ROOT}/${dir}/gradlew`,
+      env: { JAVA_HOME: `/${dir}/jdk` },
+      projects: [{ path: ":app", name: "app", dir: `${dir}/app`, buildFile: null, tasks: [] }],
+    }));
+    useProject.setState({ project: { root: ROOT } as ProjectInfo, settings: null });
+    useBuildModel.setState({ root: ROOT, model: { maven: null, gradle: builds }, gradleOffline: true });
+    const app = {
+      ...applicationConfig({ className: "a.Main" }, "second/app/src/main/java/a/Main.java", []),
+      module: "second/app",
+    };
+    const run = await gradleDelegation(app);
+    expect(run).toMatchObject({ command: `${ROOT}/second/gradlew`, cwd: "second", env: { JAVA_HOME: "/second/jdk" } });
+    expect(run!.args).toContain("--offline");
+    expect(run!.args.at(-1)).toBe(":app:openideaRun");
+  });
+
+  it("prefers the directly linked owner over a longer sibling composite root", async () => {
+    const composite = {
+      ...gradle,
+      dir: "very-long-composite",
+      command: `${ROOT}/very-long-composite/gradlew`,
+      projects: [{ path: ":b:app", name: "app", dir: "b/app", buildFile: null, tasks: [], build: ":b" }],
+    };
+    const direct = {
+      ...gradle,
+      dir: "b",
+      command: `${ROOT}/b/gradlew`,
+      projects: [{ path: ":app", name: "app", dir: "b/app", buildFile: null, tasks: [] }],
+    };
+    useProject.setState({ project: { root: ROOT } as ProjectInfo, settings: null });
+    useBuildModel.setState({ root: ROOT, model: { maven: null, gradle: [composite, direct] } });
+    const app = {
+      ...applicationConfig({ className: "a.Main" }, "b/app/src/main/java/a/Main.java", []),
+      module: "b/app",
+    };
+    const run = await gradleDelegation(app);
+    expect(run).toMatchObject({ command: `${ROOT}/b/gradlew`, cwd: "b" });
+    expect(run!.args.at(-1)).toBe(":app:openideaRun");
+  });
+});

src/features/run/gradleRun.ts

@@ -135,12 +135,23 @@ export async function gradleDelegation(config: RunConfig): Promise<RunConfig | n
   const { project, settings } = useProject.getState();
   if (!project?.root || settings?.languages?.java?.gradle?.runUsing === "ide") return null;
   const { model, gradleOffline } = useBuildModel.getState();
-  if (!model?.gradle) return null;
+  if (!model?.gradle?.length) return null;
   const module = config.module ?? (await findJavaModule(config));
   if (module === null) return null;
+  const dir = absolute(project.root, module);
+  // A composite can report a sibling's module; prefer a linked root that contains it.
+  const ownerDepth = (g: GradleModel) => {
+    const root = absolute(project.root, g.dir).replace(/\\/g, "/").replace(/\/+$/, "");
+    const path = dir.replace(/\\/g, "/").replace(/\/+$/, "");
+    return path === root || path.startsWith(`${root}/`) ? root.split("/").length : 0;
+  };
+  const gradle = model.gradle
+    .filter((g) => g.projects.some((p) => absolute(project.root, p.dir) === dir))
+    .sort((a, b) => ownerDepth(b) - ownerDepth(a))[0];
+  if (!gradle) return null;
   const ctx = {
     root: project.root,
-    gradle: model.gradle,
+    gradle,
     script: "",
     offline: gradleOffline,
     configurationCache: false,