handle multiple typescript programs

Author: skarim

src/analyze/index.js

@@ -4,7 +4,7 @@
  */
 
 const path = require('path');
-const ts = require('typescript');
+
 const { parseCustomFunctionSignature } = require('./utils/customFunctionParser');
 const { getAllFiles } = require('../utils/fileProcessor');
 const { analyzeJsFile } = require('./javascript');
@@ -19,29 +19,6 @@ async function analyzeDirectory(dirPath, customFunctions) {
   const customFunctionSignatures = (customFunctions && customFunctions?.length > 0) ? customFunctions.map(parseCustomFunctionSignature) : null;
 
   const files = getAllFiles(dirPath);
-  const tsFiles = files.filter(file => /\.(tsx?)$/.test(file));
-
-  // Attempt to reuse project tsconfig.json compiler options for proper module resolution (e.g., path aliases)
-  let tsCompilerOptions = {
-    target: ts.ScriptTarget.ESNext,
-    module: ts.ModuleKind.CommonJS,
-    jsx: ts.JsxEmit.Preserve,
-    allowJs: true,
-    noEmit: true,
-  };
-
-  const tsConfigPath = ts.findConfigFile(dirPath, ts.sys.fileExists, 'tsconfig.json');
-  if (tsConfigPath) {
-    const readResult = ts.readConfigFile(tsConfigPath, ts.sys.readFile);
-    if (!readResult.error && readResult.config) {
-      const parsedConfig = ts.parseJsonConfigFileContent(readResult.config, ts.sys, path.dirname(tsConfigPath));
-      if (!parsedConfig.errors || parsedConfig.errors.length === 0) {
-        tsCompilerOptions = { ...tsCompilerOptions, ...parsedConfig.options };
-      }
-    }
-  }
-
-  const tsProgram = ts.createProgram(tsFiles, tsCompilerOptions);
 
   for (const file of files) {
     let events = [];
@@ -55,7 +32,8 @@ async function analyzeDirectory(dirPath, customFunctions) {
     if (isJsFile) {
       events = analyzeJsFile(file, customFunctionSignatures);
     } else if (isTsFile) {
-      events = analyzeTsFile(file, tsProgram, customFunctionSignatures);
+      // Pass null program so analyzeTsFile will create a per-file program using the file's nearest tsconfig.json
+      events = analyzeTsFile(file, null, customFunctionSignatures);
     } else if (isPythonFile) {
       events = await analyzePythonFile(file, customFunctionSignatures);
     } else if (isRubyFile) {

tests/fixtures/tracking-schema-all.yaml

@@ -1135,3 +1135,12 @@ events:
         function: handleView
         destination: custom
     properties: {}
+  ViewedPage:
+    implementations:
+      - path: typescript-alias/app/components/main.ts
+        line: 10
+        function: global
+        destination: mixpanel
+    properties:
+      foo:
+        type: string