env.ELECTRON_MIRROR is broken

[fritx]

Hi, my friends!
I've found env vars such as ELECTRON_MIRROR seems to be no longer recognized. They're still documented in README:
https://github.com/electron/get/blob/main/README.md?plain=1#L102-L108

Code search:
https://github.com/search?q=repo%3Aelectron%2Fget%20mirror&type=code

I can not specify the env.ELECTRON_MIRROR=https://npmmirror.com/mirrors/electron/ (it is always npm.taobao.org), and keep getting such error when npm install electron:

 ELECTRON_MIRROR=https://npmmirror.com/mirrors/electron/ pnpm i
 WARN  17 deprecated subdependencies found: @humanwhocodes/config-array@0.11.14, @humanwhocodes/object-schema@2.0.3, @npmcli/move-file@2.0.1, are-we-there-yet@3.0.1, asar@3.2.0, electron-packager@17.1.2, gar@1.0.4, gauge@4.0.4, glob@7.2.3, glob@8.1.0, inflight@1.0.6, npmlog@6.0.2, rimraf@2.6.3, rimraf@3.0.2, xterm-addon-fit@0.5.0, xterm-addon-search@0.8.2, xterm@4.19.0
Packages: +1223
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Progress: resolved 1223, reused 1223, downloaded 0, added 0, done
node_modules/.pnpm/electron@25.9.2/node_modules/electron: Running postinstall script, failed in 1.5s
.../node_modules/electron postinstall$ node install.js
│ RequestError: Hostname/IP does not match certificate's altnames: Host: npm.taobao.org. is not…
│     at ClientRequest.<anonymous> (/Users/fritx/we-gui/electron_tray_app/node_modules/.pnpm/go…
│     at Object.onceWrapper (node:events:633:26)
│     at ClientRequest.emit (node:events:530:35)
│     at origin.emit (/Users/fritx/we-gui/electron_tray_app/node_modules/.pnpm/@szmarczak+http-…
│     at TLSSocket.socketErrorListener (node:_http_client:500:9)
│     at TLSSocket.emit (node:events:518:28)
│     at emitErrorNT (node:internal/streams/destroy:169:8)
│     at emitErrorCloseNT (node:internal/streams/destroy:128:3)

May be related to: electron/electron#32076, electron/electron#41089, cnpm/cnpmjs.org#1052

[BlackHole1]

When dealing with MIRROR, there are many priorities involved, see:

get/src/artifact-utils.ts

Lines 35 to 48 in 597349f

	return (
	// .npmrc
	process.env[`npm_config_electron_${name.toLowerCase()}`] ||
	process.env[`NPM_CONFIG_ELECTRON_${snakeName.toUpperCase()}`] ||
	process.env[`npm_config_electron_${snakeName}`] ||
	// package.json
	process.env[`npm_package_config_electron_${name}`] ||
	process.env[`npm_package_config_electron_${snakeName.toLowerCase()}`] ||
	// env
	process.env[`ELECTRON_${snakeName.toUpperCase()}`] ||
	options[name] ||
	defaultValue
	);
	}

Therefore, in your case, it may be because the mirror was configured as npm.taobao.org elsewhere.

I will close this issue first. If you still have problems after checking, I will reopen this issue :)