fix: ensure correct path resolution in CLI setup (#553)

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

Author: mattiamanzati

.changeset/fix-cli-path-resolution.md

@@ -0,0 +1,9 @@
+---
+"@effect/language-service": patch
+---
+
+fix: ensure correct path resolution in CLI setup
+
+- Use `process.cwd()` explicitly in `path.resolve()` for consistent behavior
+- Resolve the selected tsconfig path to an absolute path before validation
+- Simplify error handling by using direct `yield*` for `TsConfigNotFoundError`

src/cli/setup.ts

@@ -35,9 +35,7 @@ const createAssessmentInput = (
     const packageJsonExists = yield* fs.exists(packageJsonPath)
 
     if (!packageJsonExists) {
-      return yield* Effect.fail(
-        new PackageJsonNotFoundError({ path: packageJsonPath })
-      )
+      return yield* new PackageJsonNotFoundError({ path: packageJsonPath })
     }
 
     const packageJsonText = yield* fs.readFileString(packageJsonPath).pipe(
@@ -83,7 +81,7 @@ export const setup = Command.make(
       // ========================================================================
       // Phase 1: Select tsconfig file
       // ========================================================================
-      const currentDir = path.resolve(".")
+      const currentDir = path.resolve(process.cwd())
       const tsconfigInput = yield* selectTsConfigFile(currentDir)
 
       // ========================================================================

src/cli/setup/tsconfig-prompt.ts

@@ -39,6 +39,7 @@ export const selectTsConfigFile = (
 > =>
   Effect.gen(function*() {
     const fs = yield* FileSystem.FileSystem
+    const path = yield* Path.Path
 
     const tsconfigFiles = yield* findTsConfigFiles(currentDir)
 
@@ -75,13 +76,12 @@ export const selectTsConfigFile = (
         selectedTsconfigPath = selected
       }
     }
+    selectedTsconfigPath = path.resolve(selectedTsconfigPath)
 
     // Check if the selected tsconfig file exists
     const tsconfigExists = yield* fs.exists(selectedTsconfigPath)
     if (!tsconfigExists) {
-      return yield* Effect.fail(
-        new TsConfigNotFoundError({ path: selectedTsconfigPath })
-      )
+      return yield* new TsConfigNotFoundError({ path: selectedTsconfigPath })
     }
 
     // Read the tsconfig file