Electron main process debugging

The browser window's development tools can only debug the renderer's process scripts ( such as web pages). To provide a way to debug the main process, Electron --debug --debug-brk

The command line switch

Use the following command-line switches to debug electron's main process:

--debug=[port]

When this switch is used for Electron, it listens for debugger protocol information about port in the port engine. The default port is 5858

--debug-brk=[port]

Just --debug but the script is paused on the first line.

Use node-inspector to debug

Note: Electron's current support for node-inspector is not particularly good, and if you examine the process object process the main process crashes.

1. Make sure you have the tools you need for node-gyp installed

2. Install node-inspector

$ npm install node-inspector

3. Install node-pre-gyp

$ npm install git+https://[email protected]/enlight/node-pre-gyp.git#detect-electron-runtime-in-find

4. Recompile the node-inspector v8 Electron (modify the target parameter to your Electron version number)

$ node_modules/.bin/node-pre-gyp --target=0.36.2 --runtime=electron --fallback-to-build --directory node_modules/v8-debug/ --dist-url=https://atom.io/download/atom-shell reinstall
$ node_modules/.bin/node-pre-gyp --target=0.36.2 --runtime=electron --fallback-to-build --directory node_modules/v8-profiler/ --dist-url=https://atom.io/download/atom-shell reinstall

[How to install native modules] [how-to-install-native-modules].

5. Turn on Electron's debug mode

You can also run Electron with debug parameters:

$ electron --debug=5858 your/app

Or, pause your script on the first line:

$ electron --debug-brk=5858 your/app

6. Use Electron to turn on the node-inspector service

$ ELECTRON_RUN_AS_NODE=true path/to/electron.exe node_modules/node-inspector/bin/inspector.js

7. Load the debugger interface