feat: add native logs for iOS

software-mansion · Nov 18, 2024 · bbf3157 · bbf3157
1 parent 922191e
commit bbf3157
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Showing 2 changed files with 57 additions and 2 deletions.
diff --git a/packages/vscode-extension/src/devices/IosSimulatorDevice.ts b/packages/vscode-extension/src/devices/IosSimulatorDevice.ts
@@ -1,7 +1,8 @@
 import path from "path";
 import fs from "fs";
+import { OutputChannel, window } from "vscode";
 import { ExecaError } from "execa";
-import { getAppCachesDir, getOldAppCachesDir } from "../utilities/common";
+import { getAppCachesDir, getOldAppCachesDir, watchFileContent } from "../utilities/common";
 import { DeviceBase } from "./DeviceBase";
 import { Preview } from "./preview";
 import { Logger } from "../Logger";
@@ -52,6 +53,8 @@ type PrivacyServiceName =
   | "siri";
 
 export class IosSimulatorDevice extends DeviceBase {
+  private nativeLogsOutputChannel: OutputChannel | undefined;
+
   constructor(private readonly deviceUDID: string, private readonly _deviceInfo: DeviceInfo) {
     super();
   }
@@ -72,6 +75,7 @@ export class IosSimulatorDevice extends DeviceBase {
 
   public dispose() {
     super.dispose();
+    this.nativeLogsOutputChannel?.dispose();
     return exec("xcrun", [
       "simctl",
       "--set",
@@ -346,16 +350,38 @@ export class IosSimulatorDevice extends DeviceBase {
     await Promise.all(matches.map(terminateApp));
   }
 
-  async launchWithBuild(build: IOSBuildResult) {
+  private getNativeLogsPath() {
     const deviceSetLocation = getOrCreateDeviceSet(this.deviceUDID);
+    const logFile = path.join(deviceSetLocation, this.deviceUDID, "data", "radon_ide_ios_process.log");
+
+    return logFile;
+  }
+
+  mirrorNativeLogs(logFile: string) {
+    this.nativeLogsOutputChannel = window.createOutputChannel("Radon IDE (iOS Native Logs)", 'log');
+    this.nativeLogsOutputChannel.clear();
+
+    if (fs.existsSync(logFile)) {
+      fs.unlinkSync(logFile);
+    }
+
+    watchFileContent(logFile, this.nativeLogsOutputChannel?.append);
+  }
 
+  async launchWithBuild(build: IOSBuildResult) {
+    const deviceSetLocation = getOrCreateDeviceSet(this.deviceUDID);
+    const logFile = this.getNativeLogsPath();
+
     await this.terminateAnyRunningApplications();
+    this.mirrorNativeLogs(logFile);
 
     await exec("xcrun", [
       "simctl",
       "--set",
       deviceSetLocation,
       "launch",
+      `--stdout=${logFile}`,
+      `--stderr=${logFile}`,  
       "--terminate-running-process",
       this.deviceUDID,
       build.bundleID,

diff --git a/packages/vscode-extension/src/utilities/common.ts b/packages/vscode-extension/src/utilities/common.ts
@@ -238,3 +238,32 @@ export async function calculateMD5(fsPath: string, hash: Hash = createHash("md5"
   }
   return hash;
 }
+
+const readFileWithSize = (filePath: string, from: number): Promise<{size: number, data: string}> => new Promise((resolve, reject) => {
+  let size = 0;
+  const chunks: Uint8Array[] = [];
+  const stream = fs.createReadStream(filePath, {start: from});
+
+  stream.on('data', function(chunk: Uint8Array) {
+    size += chunk.length;
+    chunks.push(chunk);
+  });
+
+  stream.on('error', () => reject());
+
+  stream.on('close', () => resolve({size, data: Buffer.concat(chunks).toString()}));
+});
+
+export const watchFileContent = function (filePath: string, callback: (data: string) => void) {
+  let fileEnd = 0;
+
+  fs.watchFile(filePath, async (curr, prev) => {
+    if (curr.mtime > prev.mtime) {
+      const {data, size} = await readFileWithSize(filePath, fileEnd);
+      fileEnd += size;
+      callback(data);
+    }
+  }); 
+};
+
+