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

test/e2e-obsidian/runner/readiness.ts

@@ -0,0 +1,52 @@
+import { runObsidianCli } from "./cli.ts";
+
+export type PluginReadiness = {
+    status: "ready";
+    pluginId: string;
+    pluginVersion: string;
+    vaultName: string;
+};
+
+function parseEvalJson(stdout: string): unknown {
+    const marker = "=> ";
+    const markerIndex = stdout.indexOf(marker);
+    const text = markerIndex >= 0 ? stdout.slice(markerIndex + marker.length) : stdout;
+    return JSON.parse(text.trim());
+}
+
+export async function waitForPluginReady(
+    cliBinary: string,
+    env: NodeJS.ProcessEnv,
+    timeoutMs = Number(process.env.E2E_OBSIDIAN_READY_TIMEOUT_MS ?? 20000)
+): Promise<PluginReadiness> {
+    const deadline = Date.now() + timeoutMs;
+    let lastOutput = "";
+    while (Date.now() < deadline) {
+        const result = await runObsidianCli(
+            cliBinary,
+            [
+                "eval",
+                [
+                    "code=(async()=>JSON.stringify({",
+                    "status:!!app.plugins.plugins['obsidian-livesync']?'ready':'pending',",
+                    "pluginId:'obsidian-livesync',",
+                    "pluginVersion:app.plugins.manifests['obsidian-livesync']?.version,",
+                    "vaultName:app.vault.getName()",
+                    "}))()",
+                ].join(""),
+            ],
+            env
+        );
+        lastOutput = [result.stdout, result.stderr].filter(Boolean).join("\n");
+        try {
+            const readiness = parseEvalJson(result.stdout) as PluginReadiness;
+            if (readiness.status === "ready") {
+                return readiness;
+            }
+        } catch {
+            // Keep polling until Obsidian exposes the vault-side CLI and plug-in state.
+        }
+        await new Promise((resolve) => setTimeout(resolve, 500));
+    }
+    throw new Error(`Timed out waiting for Self-hosted LiveSync readiness through Obsidian CLI.\n${lastOutput}`);
+}