OpenAsar/src/cmdSwitches.js

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const { app } = require('electron');
const presets = {
'base': '--autoplay-policy=no-user-gesture-required --disable-features=WinRetrieveSuggestionsOnlyOnDemand', // Base Discord
'perf': `--enable-gpu-rasterization --enable-zero-copy --ignore-gpu-blocklist --enable-hardware-overlays=single-fullscreen,single-on-top,underlay --enable-features=EnableDrDc,CanvasOopRasterization,BackForwardCache:TimeToLiveInBackForwardCacheInSeconds/300/should_ignore_blocklists/true/enable_same_site/true,ThrottleDisplayNoneAndVisibilityHiddenCrossOriginIframes,UseSkiaRenderer,WebAssemblyLazyCompilation --disable-features=Vulkan --force_high_performance_gpu --enable-quic`, // Performance
'disablemediakeys': '--disable-features=HardwareMediaKeyHandling', // Disables media keys (common want?)
'battery': '--enable-features=TurnOffStreamingMediaCachingOnBattery --force_low_power_gpu' // Known to have better battery life for Chromium?
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};
const combinePresets = (keys) => {
let total = {};
for (const pre of keys) {
for (const cmd of presets[pre].split(' ')) {
const [ key, value ] = cmd.split('=');
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if (total[key]) {
if (value) total[key] += ',' + value; // Concat value with , for flags like --enable-features
} else total[key] = value;
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}
}
return Object.keys(total).reduce((acc, x) => acc += (x + (total[x] ? ('=' + total[x]) : '') + ' '), '');
};
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module.exports = () => {
const preset = oaConfig.cmdPreset || 'perf'; // Default to perf enhance
let cmdSwitches = presets.base + ' ' + (presets[preset] || '');
log('CmdSwitches', 'Preset:', preset);
if (preset.includes(',')) cmdSwitches = combinePresets(preset.split(','));
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if (cmdSwitches) {
cmdSwitches = `--flag-switches-begin ` + cmdSwitches + ` --flag-switches-end`; // Probably unneeded for Chromium / Electron manual flags but add anyway
log('CmdSwitches', 'Switches:', cmdSwitches);
module.exports.cmd = cmdSwitches;
module.exports.preset = preset;
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const switches = cmdSwitches.split(' ');
for (const cmd of switches) {
if (!cmd) continue;
let [ key, value ] = cmd.split('=');
key = key.replace('--', ''); // Replace --key with key (?)
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app.commandLine.appendSwitch(key, value);
log('CmdSwitches', 'Appended switch', key, value);
}
}
}