Merge pull request #17 from wkillerud/fix/root-imports

fix: root imports for scoped npm packages

.vscodeignore

@@ -9,6 +9,7 @@ npm-debug.log*
 # Configuration
 .github/
 .vscode/
+.husky/
 .editorconfig
 .eslintrc.json
 .gitattributes
@@ -26,9 +27,11 @@ node_modules/
 .nyc_output/
 coverage/
 fixtures/
+dist/test/
 src/
 types/
 patches/
+CONTRIBUTING.md
 CHANGELOG.md
 
 # Build artifacts

package.json

@@ -2,7 +2,7 @@
 	"name": "some-sass",
 	"displayName": "Some Sass",
 	"description": "Provides code suggestions, documentation and code navigation for modern SCSS",
-	"version": "2.6.0",
+	"version": "2.6.1",
 	"publisher": "SomewhatStationery",
 	"license": "MIT",
 	"engines": {
@@ -156,8 +156,9 @@
 		"prepare": "husky install",
 		"lint-staged": "lint-staged",
 		"vscode:prepublish": "npm run build",
-		"build": "webpack --mode production --devtool hidden-source-map",
-		"dev": "webpack --mode development --watch",
+		"clean": "rimraf dist",
+		"build": "npm run clean && webpack --mode production --devtool hidden-source-map",
+		"dev": "npm run clean && webpack --mode development --watch",
 		"lint": "eslint \"src/**/*.ts\" --cache",
 		"test": "npm run test:clean && npm run test:compile && npm run test:unit",
 		"test:clean": "rimraf out",

patches/vscode-css-languageservice+6.0.1.patch

@@ -0,0 +1,45 @@
+diff --git a/node_modules/vscode-css-languageservice/lib/esm/services/cssNavigation.js b/node_modules/vscode-css-languageservice/lib/esm/services/cssNavigation.js
+index 63b64d7..be64b1d 100644
+--- a/node_modules/vscode-css-languageservice/lib/esm/services/cssNavigation.js
++++ b/node_modules/vscode-css-languageservice/lib/esm/services/cssNavigation.js
+@@ -370,9 +370,14 @@ function toTwoDigitHex(n) {
+     return r.length !== 2 ? '0' + r : r;
+ }
+ function getModuleNameFromPath(path) {
+-    // If a scoped module (starts with @) then get up until second instance of '/', otherwise get until first instance of '/'
++    // If a scoped module (starts with @) then get up until second instance of '/', or to the end of the string for root-level imports.
+     if (path[0] === '@') {
+-        return path.substring(0, path.indexOf('/', path.indexOf('/') + 1));
++        const secondSlash = path.indexOf('/', path.indexOf('/') + 1);
++        if (secondSlash === -1) {
++            return path;
++        }
++        return path.substring(0, path.indexOf('/', path.indexOf('/') + 1));
+     }
+-    return path.substring(0, path.indexOf('/'));
++    // Otherwise get until first instance of '/'
++    return path.substring(0, path.indexOf('/'));
+ }
+diff --git a/node_modules/vscode-css-languageservice/lib/umd/services/cssNavigation.js b/node_modules/vscode-css-languageservice/lib/umd/services/cssNavigation.js
+index 3a42b53..d6725fd 100644
+--- a/node_modules/vscode-css-languageservice/lib/umd/services/cssNavigation.js
++++ b/node_modules/vscode-css-languageservice/lib/umd/services/cssNavigation.js
+@@ -382,10 +382,15 @@
+         return r.length !== 2 ? '0' + r : r;
+     }
+     function getModuleNameFromPath(path) {
+-        // If a scoped module (starts with @) then get up until second instance of '/', otherwise get until first instance of '/'
++        // If a scoped module (starts with @) then get up until second instance of '/', or to the end of the string for root-level imports.
+         if (path[0] === '@') {
+-            return path.substring(0, path.indexOf('/', path.indexOf('/') + 1));
++            const secondSlash = path.indexOf('/', path.indexOf('/') + 1);
++            if (secondSlash === -1) {
++                return path;
++            }
++            return path.substring(0, path.indexOf('/', path.indexOf('/') + 1));
+         }
+-        return path.substring(0, path.indexOf('/'));
++        // Otherwise get until first instance of '/'
++        return path.substring(0, path.indexOf('/'));
+     }
+ });

src/server/parser/document.ts

@@ -1,63 +1,9 @@
-import { dirname, join } from "path";
 import type { DocumentContext } from "vscode-css-languageservice";
-import { URI } from "vscode-uri";
-import { FileSystemProvider } from "../../shared/file-system";
-import type { NodeFileSystem } from "../../shared/node-file-system";
-
-/*---------------------------------------------------------------------------------------------
- *  Copyright (c) Microsoft Corporation. All rights reserved.
- *  Licensed under the MIT License.
- *  See https://github.com/microsoft/vscode/blob/main/LICENSE.txt for license information.
- *--------------------------------------------------------------------------------------------*/
-function getModuleNameFromPath(path: string) {
-	// If a scoped module (starts with @) then get up until second instance of '/', otherwise get until first isntance of '/'
-	if (path.startsWith("@")) {
-		return path.slice(0, Math.max(0, path.indexOf("/", path.indexOf("/") + 1)));
-	}
-
-	return path.slice(0, Math.max(0, path.indexOf("/")));
-}
-
-function resolvePathToModule(
-	moduleName: string,
-	relativeTo: string,
-	fs: FileSystemProvider,
-): string | undefined {
-	// Resolve the module relative to the document. We can't use `require` here as the code is webpacked.
-	// fsPath use is OK here since we never reach this function unless the URI is a file://.
-	const documentFolder = dirname(URI.parse(relativeTo).fsPath);
-
-	// Assume this path exists. If not, let VS Code deal with the "404" and have the user fix a typo or install node_modules.
-	const packPath = join(
-		documentFolder,
-		"node_modules",
-		moduleName,
-		"package.json",
-	);
-
-	if (Object.prototype.hasOwnProperty.call(fs, "existsSync")) {
-		if ((fs as NodeFileSystem).existsSync(packPath)) {
-			return URI.file(packPath).toString();
-		}
-	}
-
-	return undefined;
-}
-
-function resolve(from: string, to: string): string {
-	const resolvedUrl = new URL(to, new URL(from, "resolve://"));
-	if (resolvedUrl.protocol === "resolve:") {
-		// `from` is a relative URL.
-		const { pathname, search, hash } = resolvedUrl;
-		return pathname + search + hash;
-	}
-	return resolvedUrl.toString();
-}
+import { URI, Utils } from "vscode-uri";
 
 export function buildDocumentContext(
 	documentUri: string,
 	workspaceRoot: URI,
-	fs: FileSystemProvider,
 ): DocumentContext {
 	function getRootFolder(): string | undefined {
 		let folderURI = workspaceRoot.toString();
@@ -83,26 +29,8 @@ export function buildDocumentContext(
 					return folderUri + ref.slice(1);
 				}
 			}
-
-			// Following [css-loader](https://github.com/webpack-contrib/css-loader#url)
-			// and [sass-loader's](https://github.com/webpack-contrib/sass-loader#imports)
-			// convention, if an import path starts with ~ then use node module resolution
-			// *unless* it starts with "~/" as this refers to the user's home directory.
-			if (ref.startsWith("~") && ref[1] !== "/") {
-				ref = ref.slice(1);
-				if (base.startsWith("file://")) {
-					const moduleName = getModuleNameFromPath(ref);
-					const modulePath = resolvePathToModule(moduleName, base, fs);
-					if (modulePath) {
-						const pathWithinModule = ref.slice(
-							Math.max(0, moduleName.length + 1),
-						);
-						return resolve(modulePath, pathWithinModule);
-					}
-				}
-			}
-
-			return resolve(base, ref);
+			base = base.substr(0, base.lastIndexOf("/") + 1);
+			return Utils.resolvePath(URI.parse(base), ref).toString();
 		},
 	};
 }

src/server/parser/parser.ts

@@ -57,7 +57,7 @@ async function findDocumentSymbols(
 	const links = await ls.findDocumentLinks2(
 		document,
 		ast,
-		buildDocumentContext(document.uri, workspaceRoot, fs),
+		buildDocumentContext(document.uri, workspaceRoot),
 	);
 
 	const text = document.getText();