SFDX plugin not picking up http.proxy from VS code settings

Summary

The project I work on requires HTTP_PROXY environment variable to be set, for sfdx commands to work. I can set that using export HTTP_PROXY=http://MY_USERNAME:MY_PASSWORD@PROXY_URL:PORT, and run the sfdx commands (e.g. sfdx force:source:retrieve, or sfdx force:source:deploy) manually. But this means that I cannot use the UI shortcuts provided by Salesforce extensions for VS Code, (SFDX: Retrieve this source from org), because that fails with this error -

ERROR:  Error: getaddrinfo ENOTFOUND MY_ORG_DOMAIN.my.salesforce.com:443
ERROR running force:source:retrieve:  getaddrinfo ENOTFOUND MY_ORG_DOMAIN.my.salesforce.com MY_ORG_DOMAIN.my.salesforce.com:443

I tried to resolve this by setting http.proxy setting in VS code for my project workspace, but this does not resolve the problem. I also tried experimenting with the http.proxyStrictSSL, and http.proxySupport settings, but that also didn’t worked.

My guess is that, Salesforce Extensions plugin only pick proxy settings from the http_proxy and https_proxy environment variables, but not from the VS code settings.

Steps To Reproduce:

1. In VS Code, open command palette, and open ‘Prefrences: Open User Settings’
2. Open the workspace tab, and search for ‘proxy’
3. In the setting named Http: Proxy, set your desired proxy server URL
4. Open command palette, and select ‘Developer: Reload Window’ to reload your workspace
5. Open any salesforce resource (apex class, LWC component, apex trigger etc), right click, and select ‘SFDX: Retrieve this source from org’

Expected result

The sfdx force:source:retrieve command that executes as part of step 5 should have completed successfully.

Actual result

The command fails with this error -

ERROR:  Error: getaddrinfo ENOTFOUND MY_ORG_DOMAIN.my.salesforce.com:443
ERROR running force:source:retrieve:  getaddrinfo ENOTFOUND MY_ORG_DOMAIN.my.salesforce.com MY_ORG_DOMAIN.my.salesforce.com:443

VS Code Version: Version: 1.47.0 Commit: d5e9aa0227e057a60c82568bf31c04730dc15dcd Date: 2020-07-09T08:01:54.115Z Electron: 7.3.2 Chrome: 78.0.3904.130 Node.js: 12.8.1 V8: 7.8.279.23-electron.0 OS: Darwin x64 19.5.0

SFDX CLI Version: sfdx-cli/7.56.1-2773b53bf5 darwin-x64 node-v10.15.3

OS and version: macOS Catalina Version 10.15.5

[bloxsome]

Any update on this @lcampos and @smaddox-sf? We would like this capability as well.

[mohanraj-r]

We have this to our backlog and will prioritize it as possible. Currently we don’t have any updates on when it will be available. Sorry about that.