0e6546b93a
Summary: This diff tries to address T74467181, where Flipper (Electron) crash hard with a segfault. Although I failed to find the root issue, I noticed that this typically happened when switching to the network plugin after a long time. Switching the network plugin causes all rows to be rebuild, and during the process all request and response bodies are deserialized which can take very long and fully blocks Flipper making it totally unresponsive. This diff fixes that issue, by making sure the lately added lazy evaluation of copyText is used, and that requests aren't deserialized during row generation, which is only needed for full body search purposes, by making that lazily as well. While at it fixed D21929666 (which I never finished) as well, which is a Sandy prerequisite, since it coupled the generic search table to hardcoded networking concepts like request and response. "body" search, has now been rebranded "contents" search. That is generic and makes sense in both the network and qpl plugin. Probably will make these labelings better customisable when revisiting the grids in Sandy N.B. I thought the issue might maybe that during the blocking process the garbage collector can't run, and the process would OOM. But that doesn't seem the case (or at least not without some other factor contribution as well), as in a quick test I can trivally allocate 30 GB of memory (making the system swap), but still the process runs stably. So even with this diff I can't satisfactory explain the crash, but at least it avoids a common circumstance in which they happen, and it significantly improves the user experience. changelog: [Network] Fixed issue where Flipper would hang for seconds or even crash when opening the Network plugin Reviewed By: jknoxville Differential Revision: D23599338 fbshipit-source-id: 52164fe6997b879c91907e0afe42e08ca3f315b4
Flipper
Flipper (formerly Sonar) is a platform for debugging mobile apps on iOS and Android. Visualize, inspect, and control your apps from a simple desktop interface. Use Flipper as is or extend it using the plugin API.
Table of Contents
- Mobile development
- Extending Flipper
- Contributing to Flipper
- In this repo
- Getting started
- Building from Source
- iOS SDK + Sample App
- Android SDK + Sample app
- Documentation
- Contributing
- License
Mobile development
Flipper aims to be your number one companion for mobile app development on iOS and Android. Therefore, we provide a bunch of useful tools, including a log viewer, interactive layout inspector, and network inspector.
Extending Flipper
Flipper is built as a platform. In addition to using the tools already included, you can create your own plugins to visualize and debug data from your mobile apps. Flipper takes care of sending data back and forth, calling functions, and listening for events on the mobile app.
Contributing to Flipper
Both Flipper's desktop app and native mobile SDKs are open-source and MIT licensed. This enables you to see and understand how we are building plugins, and of course, join the community and help to improve Flipper. We are excited to see what you will build on this platform.
In this repo
This repository includes all parts of Flipper. This includes:
- Flipper's desktop app built using Electron (
/desktop) - native Flipper SDKs for iOS (
/iOS) - native Flipper SDKs for Android (
/android) - Plugins:
- Logs (
/desktop/src/device-plugins/logs) - Layout inspector (
/desktop/plugins/layout) - Network inspector (
/desktop/plugins/network) - Shared Preferences/NSUserDefaults inspector (
/desktop/plugins/shared_preferences)
- Logs (
- website and documentation (
/website//docs)
Getting started
Please refer to our Getting Started guide to set up Flipper.
Requirements
- node >= 8
- yarn >= 1.5
- iOS developer tools (for developing iOS plugins)
- Android SDK and adb
Building from Source
Desktop
Running from source
git clone https://github.com/facebook/flipper.git
cd flipper/desktop
yarn
yarn start
NOTE: If you're on Windows, you need to use Yarn 1.5.1 until this issue is resolved.
Building standalone application
Provide either --mac, --win, --linux or any combination of them
to yarn build to build a release zip file for the given platform(s). E.g.
yarn build --mac --version $buildNumber
You can find the resulting artifact in the dist/ folder.
iOS SDK + Sample App
cd iOS/Sample
rm -f Podfile.lock
pod install --repo-update
open Sample.xcworkspace
<Run app from xcode>
You can omit --repo-update to speed up the installation, but watch out as you may be building against outdated dependencies.
Android SDK + Sample app
Start up an android emulator and run the following in the project root:
./gradlew :sample:installDebug
React Native SDK + Sample app
cd react-native/ReactNativeFlipperExample
yarn
yarn android
Note that the first 2 steps need to be done only once.
Alternatively, the app can be started on iOS by running yarn ios.
Troubleshooting
Older yarn versions might show an error / hang with the message 'Waiting for the other yarn instance to finish'. If that happens, run the command yarn first separately in the directory react-native/react-native-flipper.
Documentation
Find the full documentation for this project at fbflipper.com.
Our documentation is built with Docusaurus. You can build it locally by running this:
cd website
yarn
yarn start
Contributing
See the CONTRIBUTING file for how to help out.
License
Flipper is MIT licensed, as found in the LICENSE file.