Try to avoid node resolution nonsense

Author: arogozine

config/fix-imports.js

@@ -0,0 +1,70 @@
+// Adapted from,
+// typescript-esm-example
+// By Andrey Sakharov
+// Original: https://github.com/muturgan/typescript-esm-example/blob/main/buildtools/fix-imports.js
+// MIT License: https://github.com/muturgan/typescript-esm-example/blob/main/LICENSE
+
+import { extname, join } from 'path';
+import { existsSync, readdirSync, readFileSync, statSync, writeFileSync } from 'fs';
+
+const START_PATH = join(process.cwd(), 'dist/esm');
+const IMPORT_REGEXP = /^((import|export) [^';]* from "(\.\/|(\.\.\/)+)[^";]*)"/g;
+const JUST_ADD_AN_EXTENSION = `$1.js"`;
+const ADD_INDEX_FILE = `$1/index.js"`;
+const JS_EXT = '.js';
+
+/**
+ * @param {string} rootPath
+ */
+function fixImportsAtFolder(rootPath) {
+    const entries = readdirSync(rootPath);
+
+    entries.forEach((entry) => {
+        const entryPath = join(rootPath, entry);
+        if (entry.endsWith(JS_EXT)) {
+            fixImportsAtFile(entryPath);
+        }
+        else {
+            const extName = extname(entry);
+            if (!extName) {
+                const stat = statSync(entryPath);
+                if (stat.isDirectory()) {
+                    fixImportsAtFolder(entryPath);
+                }
+            }
+        }
+    });
+}
+
+/**
+ * 
+ * @param {string} filePath 
+ */
+function fixImportsAtFile(filePath) {
+    const content = readFileSync(filePath).toString('utf8');
+    const lines = content.split('\n');
+    const fixedLines = lines.map((l) => {
+        if (!l.match(IMPORT_REGEXP)) {
+            return l;
+        }
+
+        const [_, importPath] = l.split(`"`);
+        const fullPath = join(filePath, '..', importPath);
+        const exists = existsSync(fullPath);
+        if (exists === false) {
+            return l.replace(IMPORT_REGEXP, JUST_ADD_AN_EXTENSION);
+        }
+
+        const stat = statSync(fullPath);
+        const isDirectory = stat.isDirectory();
+        if (isDirectory === true) {
+            return l.replace(IMPORT_REGEXP, ADD_INDEX_FILE);
+        }
+
+        return l;
+    });
+    const withFixedImports = fixedLines.join('\n');
+    writeFileSync(filePath, withFixedImports);
+}
+
+fixImportsAtFolder(START_PATH);

package.json

@@ -24,7 +24,7 @@
     "build:main": "tsc --removeComments --module commonjs --outDir dist/commonjs",
     "build:declaration": "tsc --module commonjs --outDir dist/types --declaration --emitDeclarationOnly",
     "build:esm": "tsc --removeComments --outDir dist/esm",
-    "postbuild": "node --experimental-json-modules config/copy",
+    "postbuild": "node config/copy && node config/fix-imports",
     "lint": "eslint -c .eslintrc.cjs --ext .ts src",
     "doc": "npx rimraf doc && typedoc ./src --exclude \"**/_*/*.ts\" --exclude \"**/bindArrayEnumerable.ts\" --gitRevision master --out ./doc --excludePrivate --readme README.md --name \"LINQ To TypeScript\" --includeVersion && node config/editdocs",
     "release:npm": "npm publish ./dist",