Add support for relative release path overrides

README.md

@@ -39,6 +39,7 @@ Tells the extension to use a local release of the Lexical language server
 instead of the automatically installed one. Useful to work on Lexical, or use an
 older version. This path can point to a directory that holds the lexical start
 script (assumed to be `start_lexical.sh`) or any executable launcher script.
+Relative paths will be interpreted to be relative to the current VSCode workspace.
 
 The path should look something like
 `/home/username/Projects/lexical/_build/dev/package/lexical/bin/start_lexical.sh`.

src/configuration.ts

@@ -8,8 +8,27 @@ namespace Configuration {
 
 	export function getReleasePathOverride(
 		getConfig: GetConfig,
+		workspace: typeof vsWorkspace,
 	): string | undefined {
-		return getConfig("releasePathOverride") as string | undefined;
+		const releasePath = getConfig("releasePathOverride") as string | undefined;
+
+		if (!releasePath) {
+			Logger.info("Release override path is undefined.");
+			return undefined;
+		} else if (path.isAbsolute(releasePath)) {
+			Logger.info(
+				`Release override path is set to absolute path "${releasePath}".`,
+			);
+			return releasePath;
+		} else {
+			// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+			const workspacePath = workspace.workspaceFolders![0].uri.path;
+			const absolutePath = path.join(workspacePath, releasePath);
+			Logger.info(
+				`Release override path is set to relative path "${releasePath}". Expanded absolute path is "${absolutePath}".`,
+			);
+			return absolutePath;
+		}
 	}
 
 	export function getProjectDirUri(

src/extension.ts

@@ -43,17 +43,18 @@ export function deactivate(): void {
 async function maybeAutoInstall(
 	context: ExtensionContext,
 ): Promise<string | undefined> {
-	const releasePathOverride = Configuration.getReleasePathOverride(getConfig);
+	const releasePathOverride = Configuration.getReleasePathOverride(
+		getConfig,
+		workspace,
+	);
 
 	if (releasePathOverride !== undefined && releasePathOverride !== "") {
-		Logger.info(
-			`Release override path set to "${releasePathOverride}". Skipping auto-install.`,
-		);
+		Logger.info(`Release override path is set. Skipping auto-install.`);
 
 		return releasePathOverride as string;
 	}
 
-	Logger.info("Release override path is undefined, starting auto-install.");
+	Logger.info("Release override path is undefined. Starting auto-install.");
 
 	return await LanguageServer.install(
 		context.globalStorageUri,
@@ -115,9 +116,11 @@ async function start(
 		clientOptions,
 	);
 
-	Logger.info(
-		`Starting lexical release in "${startScriptOrReleaseFolderPath}"`,
-	);
+	if (fs.existsSync(startScriptPath)) {
+		Logger.info(`Starting lexical at "${startScriptPath}"`);
+	} else {
+		Logger.error(`Lexical start script not found: ${startScriptPath}`);
+	}
 
 	try {
 		await client.start();

src/test/configuration.test.ts

@@ -25,4 +25,45 @@ describe("Configuration", () => {
 
 		expect(projectDirUri).toEqual(URI.file("/stub/subdirectory"));
 	});
+
+	test("getReleasePathOverride returns undefined when no releasePathOverride is configured", () => {
+		const getConfigMock = jest.fn().mockReturnValue(undefined);
+		const workspace = WorkspaceFixture.withUri(URI.file("/stub"));
+		const releasePathOverride = Configuration.getReleasePathOverride(
+			getConfigMock,
+			workspace,
+		);
+
+		expect(releasePathOverride).toBeUndefined();
+	});
+
+	test("getReleasePathOverride returns the path as configured when it is asolute", () => {
+		const absolutePath = "/an/absolute/path";
+		const getConfigMock = jest.fn().mockReturnValue(absolutePath);
+		const workspace = WorkspaceFixture.withUri(URI.file("/stub"));
+		const releasePathOverride = Configuration.getReleasePathOverride(
+			getConfigMock,
+			workspace,
+		);
+
+		expect(releasePathOverride).toBe(absolutePath);
+	});
+
+	test.each([
+		["./a/relative/path", "/my/workspace", "/my/workspace/a/relative/path"],
+		["../a/relative/path", "/my/workspace", "/my/a/relative/path"],
+		["a/relative/path", "/my/workspace", "/my/workspace/a/relative/path"],
+	])(
+		"getReleasePathOverride returns the workspace path joined with the release path when it is relative (%s)",
+		(releasePath, workspacePath, expectedPath) => {
+			const getConfigMock = jest.fn().mockReturnValue(releasePath);
+			const workspace = WorkspaceFixture.withUri(URI.file(workspacePath));
+			const releasePathOverride = Configuration.getReleasePathOverride(
+				getConfigMock,
+				workspace,
+			);
+
+			expect(releasePathOverride).toBe(expectedPath);
+		},
+	);
 });