(test): the E2E test on the real-Obsidian

test/e2e-obsidian/runner/pluginInstaller.ts

@@ -0,0 +1,39 @@
+import { copyFile, mkdir, writeFile } from "node:fs/promises";
+import { existsSync } from "node:fs";
+import { join, resolve } from "node:path";
+
+export type PluginInstallResult = {
+    pluginDir: string;
+    copied: string[];
+};
+
+const pluginId = "obsidian-livesync";
+
+export async function installBuiltPlugin(vaultPath: string, rootDir = process.cwd()): Promise<PluginInstallResult> {
+    const pluginDir = join(vaultPath, ".obsidian", "plugins", pluginId);
+    const copied: string[] = [];
+    await mkdir(pluginDir, { recursive: true });
+
+    const requiredArtifacts = ["main.js", "manifest.json"];
+    for (const artifact of requiredArtifacts) {
+        const source = resolve(rootDir, artifact);
+        if (!existsSync(source)) {
+            throw new Error(`Required plug-in artifact is missing: ${source}`);
+        }
+        await copyFile(source, join(pluginDir, artifact));
+        copied.push(artifact);
+    }
+
+    const optionalArtifacts = ["styles.css"];
+    for (const artifact of optionalArtifacts) {
+        const source = resolve(rootDir, artifact);
+        if (!existsSync(source)) {
+            continue;
+        }
+        await copyFile(source, join(pluginDir, artifact));
+        copied.push(artifact);
+    }
+
+    await writeFile(join(vaultPath, ".obsidian", "community-plugins.json"), JSON.stringify([pluginId], null, 4));
+    return { pluginDir, copied };
+}