Passing date to package.json script

问题

I have a deployment script I'm trying to set. I'm trying to set an environmental variable called DEPLOY_DATE equal to now.

"scripts": {
    "deploy": "kubectl set env deploy/api DEPLOY_DATE=\"$(date)\""
}

The problem is this just sets DEPLOY_DATE equal to $(date) instead of the actual date.

Is there anyway package.json script can actually evaluate the date variable, or any variable?

回答1:

I think it's correctly set, try the following to verify:

"deploy": "kubectl set env deploy/api DEPLOY_DATE=\"$(date)\"; echo $DEPLOY_DATE"

If date is printed all is OK. I tested with :

"deploy": "export DEPLOY_DATE=\"$(date)\"; echo $DEPLOY_DATE"

And when run "npm run deploy" I obtain:

> test@1.0.0 deploy /home/me/projects/test
> export DEPLOY_DATE="$(date)"; echo $DEPLOY_DATE

mar abr 10 00:24:00 CEST 2018

来源：https://stackoverflow.com/questions/49741967/passing-date-to-package-json-script