esm-resolve - npm Package Compare versions

Comparing version 1.0.9 to 1.0.10

bundle.js

 // index.ts
-import * as path2 from "path";
-import * as fs2 from "fs";
+import * as path2 from "node:path";
+import * as fs2 from "node:fs";
 
 // lib/helper.ts
-import * as fs from "fs";
+import * as fs from "node:fs";
 var statOrNull = (p) => {
@@ -18,6 +18,6 @@ try {
 // index.ts
-import { createRequire } from "module";
+import { createRequire } from "node:module";
 
 // lib/node.ts
-import * as path from "path";
+import * as path from "node:path";
 var alwaysConstraints = ["module", "import"];
@@ -78,2 +78,4 @@ function matchModuleNodePath(exports, rest) {
 var defaults = {
+  isDir: false,
+  resolveToAbsolute: false,
   constraints: ["browser"],
@@ -84,2 +86,3 @@ allowMissing: false,
   matchNakedMjs: false,
+  allowImportingExtraExtensions: false,
   includeMainFallback: true,
@@ -100,3 +103,4 @@ checkNestedPackages: true
     this.constraints = [this.options.constraints].flat();
-    const importerDir = path2.join(path2.resolve(importer), "..", path2.sep);
+    importer = path2.resolve(importer);
+    const importerDir = this.options.isDir ? path2.join(importer, "/") : path2.join(importer, "..", path2.sep);
     this.importerDir = new URL(`file://${importerDir}`);
@@ -152,3 +156,17 @@ this.require = createRequire(importerDir);
     }
-    const extToCheck = this.options.matchNakedMjs ? [".js", ".mjs"] : [".js"];
+    const extToCheck = [".js"];
+    if (this.options.matchNakedMjs) {
+      extToCheck.push(".mjs");
+    }
+    if (this.options.allowImportingExtraExtensions) {
+      if (Array.isArray(this.options.allowImportingExtraExtensions)) {
+        extToCheck.push(
+          ...this.options.allowImportingExtraExtensions.map((x) => {
+            return x.startsWith(".") ? x : "." + x;
+          })
+        );
+      } else {
+        extToCheck.push(".ts", ".tsx", ".jsx");
+      }
+    }
     if (stat === null) {
@@ -169,2 +187,10 @@ for (const ext of extToCheck) {
       }
+      const { name, dir } = path2.parse(pathname);
+      const naked = path2.join(dir, name);
+      for (const ext of extToCheck) {
+        const check = naked + ext;
+        if (statIsFile(check)) {
+          return check;
+        }
+      }
     } else if (stat.isDirectory()) {
@@ -266,2 +292,5 @@ for (const ext of extToCheck) {
     }
+    if (this.options.resolveToAbsolute) {
+      return pathname;
+    }
     let out = path2.relative(this.importerDir.pathname, pathname);
@@ -268,0 +297,0 @@ if (!relativeRegexp.test(out)) {

package.json

 {
   "name": "esm-resolve",
-  "version": "1.0.9",
+  "version": "1.0.10",
   "description": "Resolves ESM imports in Node",
@@ -10,3 +10,4 @@ "main": "bundle.js",
         "import": "./bundle.js",
-        "require": "./bundle.cjs"
+        "require": "./bundle.cjs",
+        "types": "./index.d.ts"
       }
@@ -20,7 +21,7 @@ }
   "devDependencies": {
-    "@types/node": "^20.11.28",
-    "esbuild": "^0.14.1",
+    "@types/node": "^20.12.7",
+    "esbuild": "^0.14.54",
     "tsx": "^4.7.1"
   },
-  "types": "index.d.ts",
+  "types": "./index.d.ts",
   "scripts": {
@@ -27,0 +28,0 @@ "test": "npx tsx test/resolve.ts"

README.md

 [![Tests](https://github.com/samthor/esm-resolve/workflows/Tests/badge.svg)](https://github.com/samthor/esm-resolve/actions)
 
-An ESM import resolver for Node written in pure JS.
-This is written to be part of an [ESM dev server](https://github.com/samthor/dhost) or build process, as Node's import process is impossible to introspect.
-It also allows some cases which would otherwise be failures.
+Sync ESM import resolver for Node written in pure JS.
+This is written to be part of an [ESM dev server](https://github.com/samthor/dhost) or build process.
+It is permissive by default, allowing some cases which would normally be failures.
 
+⚠️ This resolver was writtem before [`import.meta.resolve()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/import.meta/resolve) was widely available—it may work for you without adding _yet another_ dependency.
+However, "esm-resolve" is a bit more permissive.
+
 ## Usage
@@ -16,6 +19,6 @@
 
-const r = buildResolver('./path/to/js/file.js');
+const r = buildResolver('./lib/file.js');
 
 r('./relative'); // './relative.js'
-r('foo-test-package-name'); // './node_modules/foo-test-package-name/index.js'
+r('foo-test-package-name'); // '../node_modules/foo-test-package-name/index.js'
 ```
@@ -25,5 +28,8 @@
 
+The resolved path is returned relative _to the importer_ of that file, not your process' current directory.
+You can set the `resolveToAbsolute` option if you'd always like an absolute path.
+
 ## Notes
 
-This implements modern Node resolution, i.e., [subpath exports](https://nodejs.org/api/packages.html#packages_subpath_exports) and [conditional exports](https://nodejs.org/api/packages.html#packages_conditional_exports).
+This implements modern Node resolution, i.e., [subpath exports](https://nodejs.org/api/packages.html#packages_subpath_exports), [subpath imports](https://nodejs.org/api/packages.html#subpath-imports) and [conditional exports](https://nodejs.org/api/packages.html#packages_conditional_exports).
 By default, it will rewrite to the "browser", "import" or "default" keys (not "node", as it's expected that you'll use this for browser builds).
@@ -38,3 +44,3 @@
 // Resolves for Node, and allows .mjs files.
-const r = buildResolver('./path/to/js/file.js', {
+const r = buildResolver('./lib/file.js', {
   constraints: 'node',
@@ -48,3 +54,3 @@ matchNakedMjs: true,
 // Or if we're importing package with a node constraint:
-r('node-only'); // './node-modules/node-only/build-for-node.js'
+r('node-only'); // '../node-modules/node-only/build-for-node.js'
 ```

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Fixed alerts

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Major refactor

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Improved metrics

Number of lines in readme file

53

increased by12.77%

Number of low supply chain risk alerts

4

decreased by-42.86%

Number of medium supply chain risk alerts

0

decreased by-100%

Worsened metrics

Total package byte prevSize

33838

decreased by-32.14%

Number of package files

6

decreased by-53.85%

Lines of code

647

decreased by-41.71%

No dependency changes