Fix --version option

src/command/command.js

@@ -1,5 +1,6 @@
 #!/usr/bin/env node
 import "dotenv/config";
+import { readFileSync } from "fs";
 import yargsFactory from "yargs/yargs";
 import { hideBin } from "yargs/helpers";
 import importerCommand from "../import/command.js";
@@ -14,9 +15,19 @@ import { excelExportCommand, excelImportCommand } from "../excel/command.js";
 import { checkCommand } from "./helpers.js";
 
 const yargs = yargsFactory(hideBin(process.argv));
+let cliVersion = "unknown";
+try {
+    const pkg = JSON.parse(
+        readFileSync(new URL("../../package.json", import.meta.url), "utf8")
+    );
+    cliVersion = pkg?.version ?? cliVersion;
+} catch {
+    // Keep default version when package.json is unavailable/unreadable.
+}
 
 const argv = await yargs
     .usage("flotiq [command]")
+    .version(cliVersion)
     .help()
     .alias("help", "h")
     .command(exporterCommand)

tests/commands/version-command.test.js

@@ -0,0 +1,44 @@
+import { execFileSync } from "child_process";
+import { mkdtempSync, readFileSync, rmSync, writeFileSync } from "fs";
+import { tmpdir } from "os";
+import path from "path";
+import { fileURLToPath } from "url";
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const cliBinPath = path.resolve(__dirname, "../../bin/flotiq");
+const cliPackageJsonPath = path.resolve(__dirname, "../../package.json");
+const cliVersion = JSON.parse(readFileSync(cliPackageJsonPath, "utf8")).version;
+
+function runVersionCommand(cwd) {
+    return execFileSync(process.execPath, [cliBinPath, "--version"], {
+        cwd,
+        encoding: "utf8",
+    }).trim();
+}
+
+describe("CLI version output", () => {
+    let tempDir;
+
+    afterEach(() => {
+        if (tempDir) {
+            rmSync(tempDir, { recursive: true, force: true });
+            tempDir = undefined;
+        }
+    });
+
+    it("should ignore package.json from the current working directory", () => {
+        tempDir = mkdtempSync(path.join(tmpdir(), "flotiq-version-"));
+        writeFileSync(
+            path.join(tempDir, "package.json"),
+            JSON.stringify({ name: "foreign-project", version: "4.57.2" })
+        );
+
+        expect(runVersionCommand(tempDir)).toBe(cliVersion);
+    });
+
+    it("should print installed CLI version when cwd has no package.json", () => {
+        tempDir = mkdtempSync(path.join(tmpdir(), "flotiq-version-"));
+
+        expect(runVersionCommand(tempDir)).toBe(cliVersion);
+    });
+});