WP cli fails to parse $npm_config

[nicooprat]

Hi,

I'm trying to use the wp migratedb command this way in my package.json:

"push:preprod": "wp migratedb push $npm_config_PREPROD_SITE $npm_config_PREPROD_KEY --media=compare"

I have a .npmrc which looks like:

PREPROD_SITE=http://example.com
PREPROD_KEY=WKGHemKW9z6p3YV6MFsCb+zWvBy6PsFUWiiggHg

I'm only getting Exit status 1. If I replace $npm_config_ parts with real values it works great.

I have a lot of other commands using this way of using .npmrc config, without any issue. Any idea why wp migrate fails to parse it?

Thanks.