4fd7c2adcd* feat: make desktopCapturer main-process-only * remove --enable-api-filtering-logging * remove test * merge lib/browser/api/desktop-capturer.ts with lib/browser/desktop-capturer.ts * remove desktop-capturer-get-sources event * fix specs * getSources needs to be async Co-authored-by: Milan Burda <milan.burda@gmail.com>
281 lines
9.5 KiB
Markdown
281 lines
9.5 KiB
Markdown
# Supported Command Line Switches
|
|
|
|
> Command line switches supported by Electron.
|
|
|
|
You can use [app.commandLine.appendSwitch][append-switch] to append them in
|
|
your app's main script before the [ready][ready] event of the [app][app] module
|
|
is emitted:
|
|
|
|
```javascript
|
|
const { app } = require('electron')
|
|
app.commandLine.appendSwitch('remote-debugging-port', '8315')
|
|
app.commandLine.appendSwitch('host-rules', 'MAP * 127.0.0.1')
|
|
|
|
app.whenReady().then(() => {
|
|
// Your code here
|
|
})
|
|
```
|
|
|
|
## Electron CLI Flags
|
|
|
|
### --auth-server-whitelist=`url`
|
|
|
|
A comma-separated list of servers for which integrated authentication is enabled.
|
|
|
|
For example:
|
|
|
|
```sh
|
|
--auth-server-whitelist='*example.com, *foobar.com, *baz'
|
|
```
|
|
|
|
then any `url` ending with `example.com`, `foobar.com`, `baz` will be considered
|
|
for integrated authentication. Without `*` prefix the URL has to match exactly.
|
|
|
|
### --auth-negotiate-delegate-whitelist=`url`
|
|
|
|
A comma-separated list of servers for which delegation of user credentials is required.
|
|
Without `*` prefix the URL has to match exactly.
|
|
|
|
### --disable-ntlm-v2
|
|
|
|
Disables NTLM v2 for posix platforms, no effect elsewhere.
|
|
|
|
### --disable-http-cache
|
|
|
|
Disables the disk cache for HTTP requests.
|
|
|
|
### --disable-http2
|
|
|
|
Disable HTTP/2 and SPDY/3.1 protocols.
|
|
|
|
### --disable-renderer-backgrounding
|
|
|
|
Prevents Chromium from lowering the priority of invisible pages' renderer
|
|
processes.
|
|
|
|
This flag is global to all renderer processes, if you only want to disable
|
|
throttling in one window, you can take the hack of
|
|
[playing silent audio][play-silent-audio].
|
|
|
|
### --disk-cache-size=`size`
|
|
|
|
Forces the maximum disk space to be used by the disk cache, in bytes.
|
|
|
|
### --enable-logging[=file]
|
|
|
|
Prints Chromium's logging to stderr (or a log file).
|
|
|
|
The `ELECTRON_ENABLE_LOGGING` environment variable has the same effect as
|
|
passing `--enable-logging`.
|
|
|
|
Passing `--enable-logging` will result in logs being printed on stderr.
|
|
Passing `--enable-logging=file` will result in logs being saved to the file
|
|
specified by `--log-file=...`, or to `electron_debug.log` in the user-data
|
|
directory if `--log-file` is not specified.
|
|
|
|
> **Note:** On Windows, logs from child processes cannot be sent to stderr.
|
|
> Logging to a file is the most reliable way to collect logs on Windows.
|
|
|
|
See also `--log-file`, `--log-level`, `--v`, and `--vmodule`.
|
|
|
|
### --force-fieldtrials=`trials`
|
|
|
|
Field trials to be forcefully enabled or disabled.
|
|
|
|
For example: `WebRTC-Audio-Red-For-Opus/Enabled/`
|
|
|
|
### --host-rules=`rules`
|
|
|
|
A comma-separated list of `rules` that control how hostnames are mapped.
|
|
|
|
For example:
|
|
|
|
* `MAP * 127.0.0.1` Forces all hostnames to be mapped to 127.0.0.1
|
|
* `MAP *.google.com proxy` Forces all google.com subdomains to be resolved to
|
|
"proxy".
|
|
* `MAP test.com [::1]:77` Forces "test.com" to resolve to IPv6 loopback. Will
|
|
also force the port of the resulting socket address to be 77.
|
|
* `MAP * baz, EXCLUDE www.google.com` Remaps everything to "baz", except for
|
|
"www.google.com".
|
|
|
|
These mappings apply to the endpoint host in a net request (the TCP connect
|
|
and host resolver in a direct connection, and the `CONNECT` in an HTTP proxy
|
|
connection, and the endpoint host in a `SOCKS` proxy connection).
|
|
|
|
### --host-resolver-rules=`rules`
|
|
|
|
Like `--host-rules` but these `rules` only apply to the host resolver.
|
|
|
|
### --ignore-certificate-errors
|
|
|
|
Ignores certificate related errors.
|
|
|
|
### --ignore-connections-limit=`domains`
|
|
|
|
Ignore the connections limit for `domains` list separated by `,`.
|
|
|
|
### --js-flags=`flags`
|
|
|
|
Specifies the flags passed to the Node.js engine. It has to be passed when starting
|
|
Electron if you want to enable the `flags` in the main process.
|
|
|
|
```sh
|
|
$ electron --js-flags="--harmony_proxies --harmony_collections" your-app
|
|
```
|
|
|
|
See the [Node.js documentation][node-cli] or run `node --help` in your terminal for a list of available flags. Additionally, run `node --v8-options` to see a list of flags that specifically refer to Node.js's V8 JavaScript engine.
|
|
|
|
### --lang
|
|
|
|
Set a custom locale.
|
|
|
|
### --log-file=`path`
|
|
|
|
If `--enable-logging` is specified, logs will be written to the given path. The
|
|
parent directory must exist.
|
|
|
|
Setting the `ELECTRON_LOG_FILE` environment variable is equivalent to passing
|
|
this flag. If both are present, the command-line switch takes precedence.
|
|
|
|
### --log-net-log=`path`
|
|
|
|
Enables net log events to be saved and writes them to `path`.
|
|
|
|
### --log-level=`N`
|
|
|
|
Sets the verbosity of logging when used together with `--enable-logging`.
|
|
`N` should be one of [Chrome's LogSeverities][severities].
|
|
|
|
Note that two complimentary logging mechanisms in Chromium -- `LOG()`
|
|
and `VLOG()` -- are controlled by different switches. `--log-level`
|
|
controls `LOG()` messages, while `--v` and `--vmodule` control `VLOG()`
|
|
messages. So you may want to use a combination of these three switches
|
|
depending on the granularity you want and what logging calls are made
|
|
by the code you're trying to watch.
|
|
|
|
See [Chromium Logging source][logging] for more information on how
|
|
`LOG()` and `VLOG()` interact. Loosely speaking, `VLOG()` can be thought
|
|
of as sub-levels / per-module levels inside `LOG(INFO)` to control the
|
|
firehose of `LOG(INFO)` data.
|
|
|
|
See also `--enable-logging`, `--log-level`, `--v`, and `--vmodule`.
|
|
|
|
### --no-proxy-server
|
|
|
|
Don't use a proxy server and always make direct connections. Overrides any other
|
|
proxy server flags that are passed.
|
|
|
|
### --no-sandbox
|
|
|
|
Disables the Chromium [sandbox](https://www.chromium.org/developers/design-documents/sandbox).
|
|
Forces renderer process and Chromium helper processes to run un-sandboxed.
|
|
Should only be used for testing.
|
|
|
|
### --proxy-bypass-list=`hosts`
|
|
|
|
Instructs Electron to bypass the proxy server for the given semi-colon-separated
|
|
list of hosts. This flag has an effect only if used in tandem with
|
|
`--proxy-server`.
|
|
|
|
For example:
|
|
|
|
```javascript
|
|
const { app } = require('electron')
|
|
app.commandLine.appendSwitch('proxy-bypass-list', '<local>;*.google.com;*foo.com;1.2.3.4:5678')
|
|
```
|
|
|
|
Will use the proxy server for all hosts except for local addresses (`localhost`,
|
|
`127.0.0.1` etc.), `google.com` subdomains, hosts that contain the suffix
|
|
`foo.com` and anything at `1.2.3.4:5678`.
|
|
|
|
### --proxy-pac-url=`url`
|
|
|
|
Uses the PAC script at the specified `url`.
|
|
|
|
### --proxy-server=`address:port`
|
|
|
|
Use a specified proxy server, which overrides the system setting. This switch
|
|
only affects requests with HTTP protocol, including HTTPS and WebSocket
|
|
requests. It is also noteworthy that not all proxy servers support HTTPS and
|
|
WebSocket requests. The proxy URL does not support username and password
|
|
authentication [per Chromium issue](https://bugs.chromium.org/p/chromium/issues/detail?id=615947).
|
|
|
|
### --remote-debugging-port=`port`
|
|
|
|
Enables remote debugging over HTTP on the specified `port`.
|
|
|
|
### --v=`log_level`
|
|
|
|
Gives the default maximal active V-logging level; 0 is the default. Normally
|
|
positive values are used for V-logging levels.
|
|
|
|
This switch only works when `--enable-logging` is also passed.
|
|
|
|
See also `--enable-logging`, `--log-level`, and `--vmodule`.
|
|
|
|
### --vmodule=`pattern`
|
|
|
|
Gives the per-module maximal V-logging levels to override the value given by
|
|
`--v`. E.g. `my_module=2,foo*=3` would change the logging level for all code in
|
|
source files `my_module.*` and `foo*.*`.
|
|
|
|
Any pattern containing a forward or backward slash will be tested against the
|
|
whole pathname and not only the module. E.g. `*/foo/bar/*=2` would change the
|
|
logging level for all code in the source files under a `foo/bar` directory.
|
|
|
|
This switch only works when `--enable-logging` is also passed.
|
|
|
|
See also `--enable-logging`, `--log-level`, and `--v`.
|
|
|
|
### --force_high_performance_gpu
|
|
|
|
Force using discrete GPU when there are multiple GPUs available.
|
|
|
|
### --force_low_power_gpu
|
|
|
|
Force using integrated GPU when there are multiple GPUs available.
|
|
|
|
## Node.js Flags
|
|
|
|
Electron supports some of the [CLI flags][node-cli] supported by Node.js.
|
|
|
|
**Note:** Passing unsupported command line switches to Electron when it is not running in `ELECTRON_RUN_AS_NODE` will have no effect.
|
|
|
|
### --inspect-brk[=[host:]port]
|
|
|
|
Activate inspector on host:port and break at start of user script. Default host:port is 127.0.0.1:9229.
|
|
|
|
Aliased to `--debug-brk=[host:]port`.
|
|
|
|
### --inspect-port=[host:]port
|
|
|
|
Set the `host:port` to be used when the inspector is activated. Useful when activating the inspector by sending the SIGUSR1 signal. Default host is `127.0.0.1`.
|
|
|
|
Aliased to `--debug-port=[host:]port`.
|
|
|
|
### --inspect[=[host:]port]
|
|
|
|
Activate inspector on `host:port`. Default is `127.0.0.1:9229`.
|
|
|
|
V8 inspector integration allows tools such as Chrome DevTools and IDEs to debug and profile Electron instances. The tools attach to Electron instances via a TCP port and communicate using the [Chrome DevTools Protocol](https://chromedevtools.github.io/devtools-protocol/).
|
|
|
|
See the [Debugging the Main Process][debugging-main-process] guide for more details.
|
|
|
|
Aliased to `--debug[=[host:]port`.
|
|
|
|
### --inspect-publish-uid=stderr,http
|
|
|
|
Specify ways of the inspector web socket url exposure.
|
|
|
|
By default inspector websocket url is available in stderr and under /json/list endpoint on http://host:port/json/list.
|
|
|
|
[app]: app.md
|
|
[append-switch]: command-line.md#commandlineappendswitchswitch-value
|
|
[ready]: app.md#event-ready
|
|
[play-silent-audio]: https://github.com/atom/atom/pull/9485/files
|
|
[debugging-main-process]: ../tutorial/debugging-main-process.md
|
|
[logging]: https://source.chromium.org/chromium/chromium/src/+/master:base/logging.h
|
|
[node-cli]: https://nodejs.org/api/cli.html
|
|
[play-silent-audio]: https://github.com/atom/atom/pull/9485/files
|
|
[ready]: app.md#event-ready
|
|
[severities]: https://source.chromium.org/chromium/chromium/src/+/master:base/logging.h?q=logging::LogSeverity&ss=chromium
|