fix: handle typescript projects better

Author: satya164

package.json

@@ -34,6 +34,7 @@
     "glob": "^7.1.6",
     "inquirer": "^7.0.1",
     "is-git-dirty": "^1.0.0",
+    "json5": "^2.1.1",
     "metro-react-native-babel-preset": "^0.57.0",
     "yargs": "^15.0.2"
   },
@@ -53,6 +54,7 @@
     "@types/fs-extra": "^8.0.1",
     "@types/glob": "^7.1.1",
     "@types/inquirer": "^6.5.0",
+    "@types/json5": "^0.0.30",
     "@types/yargs": "^13.0.3",
     "commitlint": "^8.2.0",
     "eslint": "^6.7.2",

src/targets/typescript.ts

@@ -3,6 +3,7 @@ import path from 'path';
 import child_process from 'child_process';
 import fs from 'fs-extra';
 import del from 'del';
+import JSON5 from 'json5';
 import { platform } from 'os';
 import { Input } from '../types';
 
@@ -19,37 +20,47 @@ export default async function build({ root, output, report }: Input) {
 
   try {
     if (await fs.pathExists(tsconfig)) {
-      const config = JSON.parse(await fs.readFile(tsconfig, 'utf-8'));
-
-      if (config.compilerOptions) {
-        const conflicts: string[] = [];
-
-        if (config.compilerOptions.noEmit !== undefined) {
-          conflicts.push('compilerOptions.noEmit');
-        }
-
-        if (config.compilerOptions.emitDeclarationOnly !== undefined) {
-          conflicts.push('compilerOptions.emitDeclarationOnly');
-        }
-
-        if (config.compilerOptions.outDir) {
-          conflicts.push('compilerOptions.outDir');
-        }
-
-        if (config.compilerOptions.declarationDir) {
-          conflicts.push('compilerOptions.declarationDir');
-        }
-
-        if (conflicts.length) {
-          report.warn(
-            `Found following options in the config file which can conflict with the CLI options. Please remove them from ${chalk.blue(
-              'tsconfig.json'
-            )}:${conflicts.reduce(
-              (acc, curr) => acc + `\n${chalk.gray('-')} ${chalk.yellow(curr)}`,
-              ''
-            )}`
-          );
+      try {
+        const config = JSON5.parse(await fs.readFile(tsconfig, 'utf-8'));
+
+        if (config.compilerOptions) {
+          const conflicts: string[] = [];
+
+          if (config.compilerOptions.noEmit !== undefined) {
+            conflicts.push('compilerOptions.noEmit');
+          }
+
+          if (config.compilerOptions.emitDeclarationOnly !== undefined) {
+            conflicts.push('compilerOptions.emitDeclarationOnly');
+          }
+
+          if (config.compilerOptions.declarationDir) {
+            conflicts.push('compilerOptions.declarationDir');
+          }
+
+          if (
+            config.compilerOptions.outDir &&
+            path.join(root, config.compilerOptions.outDir) !== output
+          ) {
+            conflicts.push('compilerOptions.outDir');
+          }
+
+          if (conflicts.length) {
+            report.warn(
+              `Found following options in the config file which can conflict with the CLI options. Please remove them from ${chalk.blue(
+                'tsconfig.json'
+              )}:${conflicts.reduce(
+                (acc, curr) =>
+                  acc + `\n${chalk.gray('-')} ${chalk.yellow(curr)}`,
+                ''
+              )}`
+            );
+          }
         }
+      } catch (e) {
+        report.warn(
+          `Couldn't parse 'tsconfig.json'. There might be validation errors.`
+        );
       }
     }
 
@@ -73,6 +84,8 @@ export default async function build({ root, output, report }: Input) {
         output,
       ]);
 
+      await del([path.join(output, 'tsconfig.tsbuildinfo')]);
+
       report.success(
         `Wrote definition files to ${chalk.blue(path.relative(root, output))}`
       );

yarn.lock

@@ -1570,6 +1570,11 @@
   resolved "https://registry.yarnpkg.com/@types/json-schema/-/json-schema-7.0.3.tgz#bdfd69d61e464dcc81b25159c270d75a73c1a636"
   integrity sha512-Il2DtDVRGDcqjDtE+rF8iqg1CArehSK84HZJCT7AMITlyXRBpuPhqGLDQMowraqqu1coEaimg4ZOqggt6L6L+A==
 
+"@types/json5@^0.0.30":
+  version "0.0.30"
+  resolved "https://registry.yarnpkg.com/@types/json5/-/json5-0.0.30.tgz#44cb52f32a809734ca562e685c6473b5754a7818"
+  integrity sha512-sqm9g7mHlPY/43fcSNrCYfOeX9zkTTK+euO5E6+CVijSMm5tTjkVdwdqRkY3ljjIAf8679vps5jKUoJBCLsMDA==
+
 "@types/minimatch@*":
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/@types/minimatch/-/minimatch-3.0.3.tgz#3dca0e3f33b200fc7d1139c0cd96c1268cadfd9d"
@@ -4322,6 +4327,13 @@ json5@^2.1.0:
   dependencies:
     minimist "^1.2.0"
 
+json5@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/json5/-/json5-2.1.1.tgz#81b6cb04e9ba496f1c7005d07b4368a2638f90b6"
+  integrity sha512-l+3HXD0GEI3huGq1njuqtzYK8OYJyXMkOLtQ53pjWh89tvWS2h6l+1zMkYWqlb57+SiQodKZyvMEFb2X+KrFhQ==
+  dependencies:
+    minimist "^1.2.0"
+
 jsonfile@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-4.0.0.tgz#8771aae0799b64076b76640fca058f9c10e33ecb"