Merge pull request #27195 from Microsoft/projectReferenceInputDetection

Detect the input file of referenced project with fileNames from parsed command line

Author: sheetalkamat

src/compiler/program.ts

@@ -663,7 +663,7 @@ namespace ts {
 
         // A parallel array to projectReferences storing the results of reading in the referenced tsconfig files
         let resolvedProjectReferences: (ResolvedProjectReference | undefined)[] | undefined = projectReferences ? [] : undefined;
-        const projectReferenceRedirects: Map<string> = createMap();
+        let projectReferenceRedirects: ParsedCommandLine[] | undefined;
 
         const shouldCreateNewSourceFile = shouldProgramCreateNewSourceFiles(oldProgram, options);
         const structuralIsReused = tryReuseStructureFromOldProgram();
@@ -681,7 +681,7 @@ namespace ts {
                             const dtsOutfile = changeExtension(out, ".d.ts");
                             processSourceFile(dtsOutfile, /*isDefaultLib*/ false, /*ignoreNoDefaultLib*/ false, /*packageId*/ undefined);
                         }
-                        addProjectReferenceRedirects(parsedRef.commandLine, projectReferenceRedirects);
+                        addProjectReferenceRedirects(parsedRef.commandLine);
                     }
                 }
             }
@@ -1252,7 +1252,7 @@ namespace ts {
             if (resolvedProjectReferences) {
                 resolvedProjectReferences.forEach(ref => {
                     if (ref) {
-                        addProjectReferenceRedirects(ref.commandLine, projectReferenceRedirects);
+                        addProjectReferenceRedirects(ref.commandLine);
                     }
                 });
             }
@@ -2179,20 +2179,24 @@ namespace ts {
         }
 
         function getProjectReferenceRedirect(fileName: string): string | undefined {
-            const path = toPath(fileName);
+            // Ignore dts or any of the non ts files
+            if (!projectReferenceRedirects || fileExtensionIs(fileName, Extension.Dts) || !fileExtensionIsOneOf(fileName, supportedTSExtensions)) {
+                return undefined;
+            }
+
             // If this file is produced by a referenced project, we need to rewrite it to
             // look in the output folder of the referenced project rather than the input
-            const normalized = getNormalizedAbsolutePath(fileName, path);
-            let result: string | undefined;
-            projectReferenceRedirects.forEach((v, k) => {
-                if (result !== undefined) {
+            return forEach(projectReferenceRedirects, referencedProject => {
+                // not input file from the referenced project, ignore
+                if (!contains(referencedProject.fileNames, fileName, isSameFile)) {
                     return undefined;
                 }
-                if (normalized.indexOf(k) === 0) {
-                    result = changeExtension(fileName.replace(k, v), ".d.ts");
-                }
+
+                const out = referencedProject.options.outFile || referencedProject.options.out;
+                return out ?
+                    changeExtension(out, Extension.Dts) :
+                    getOutputDeclarationFileName(fileName, referencedProject);
             });
-            return result;
         }
 
         function processReferencedFiles(file: SourceFile, isDefaultLib: boolean) {
@@ -2396,15 +2400,8 @@ namespace ts {
             return { commandLine, sourceFile };
         }
 
-        function addProjectReferenceRedirects(referencedProject: ParsedCommandLine, target: Map<string>) {
-            const rootDir = normalizePath(referencedProject.options.rootDir || getDirectoryPath(referencedProject.options.configFilePath!)); // TODO: GH#18217
-            target.set(rootDir, getDeclarationOutputDirectory(referencedProject));
-        }
-
-        function getDeclarationOutputDirectory(proj: ParsedCommandLine) {
-            return proj.options.declarationDir ||
-                proj.options.outDir ||
-                getDirectoryPath(proj.options.configFilePath!); // TODO: GH#18217
+        function addProjectReferenceRedirects(referencedProject: ParsedCommandLine) {
+            (projectReferenceRedirects || (projectReferenceRedirects = [])).push(referencedProject);
         }
 
         function verifyCompilerOptions() {

src/compiler/tsbuild.ts

@@ -248,7 +248,7 @@ namespace ts {
         return getOrCreateValueFromConfigFileMap<Map<T>>(configFileMap, resolved, createMap);
     }
 
-    function getOutputDeclarationFileName(inputFileName: string, configFile: ParsedCommandLine) {
+    export function getOutputDeclarationFileName(inputFileName: string, configFile: ParsedCommandLine) {
         const relativePath = getRelativePathFromDirectory(rootDirOfOptions(configFile.options, configFile.options.configFilePath!), inputFileName, /*ignoreCase*/ true);
         const outputPath = resolvePath(configFile.options.declarationDir || configFile.options.outDir || getDirectoryPath(configFile.options.configFilePath!), relativePath);
         return changeExtension(outputPath, Extension.Dts);

src/testRunner/unittests/tsbuild.ts

@@ -357,6 +357,25 @@ export class cNew {}`);
                 ]);
             });
         });
+
+        describe("tsbuild - with rootDir of project reference in parentDirectory", () => {
+            const projFs = loadProjectFromDisk("tests/projects/projectReferenceWithRootDirInParent");
+            const allExpectedOutputs = [
+                "/src/dist/other/other.js", "/src/dist/other/other.d.ts",
+                "/src/dist/main/a.js", "/src/dist/main/a.d.ts",
+                "/src/dist/main/b.js", "/src/dist/main/b.d.ts"
+            ];
+            it("verify that it builds correctly", () => {
+                const fs = projFs.shadow();
+                const host = new fakes.SolutionBuilderHost(fs);
+                const builder = createSolutionBuilder(host, ["/src/src/main", "/src/src/other"], {});
+                builder.buildAllProjects();
+                host.assertDiagnosticMessages(/*empty*/);
+                for (const output of allExpectedOutputs) {
+                    assert(fs.existsSync(output), `Expect file ${output} to exist`);
+                }
+            });
+        });
     }
 
     export namespace OutFile {

tests/projects/projectReferenceWithRootDirInParent/src/main/a.ts

@@ -0,0 +1,2 @@
+import { b } from './b';
+const a = b;

tests/projects/projectReferenceWithRootDirInParent/src/main/b.ts

@@ -0,0 +1 @@
+export const b = 0;

tests/projects/projectReferenceWithRootDirInParent/src/main/tsconfig.json

@@ -0,0 +1,6 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "references": [
+    { "path": "../other" }
+  ]
+}

tests/projects/projectReferenceWithRootDirInParent/src/other/other.ts

@@ -0,0 +1 @@
+export const Other = 0;

tests/projects/projectReferenceWithRootDirInParent/src/other/tsconfig.json

@@ -0,0 +1,3 @@
+{
+  "extends": "../../tsconfig.base.json"
+}

tests/projects/projectReferenceWithRootDirInParent/tsconfig.base.json

@@ -0,0 +1,11 @@
+{
+  "compilerOptions": {
+    "composite": true,
+    "declaration": true,
+    "rootDir": "./src/",
+    "outDir": "./dist/"
+  },
+  "exclude": [
+    "node_modules"
+  ]
+}