Convert "=" separated values file to ":" json file

Trying to read .env file and convert it into to json file.

Input:

os=amazon-linux
region=ap-south-1

Desired ouput:

{
"os": "amazon-linux",
"region": "ap-south-1"
}

I am trying to use jq but getting 2 problems –

1. Handle to empty lines – jq: error (at .env:1): null (null) only strings can be parsed
2. Handle commented line – #this is comment => "#this is comment": null

Note: .env file is not nested value file

>Solution :

You could use capture to grab the parts by regular expressions (lines not matching would be ignored altogether), and from_entries to construct the object:

jq -Rn '[inputs | capture("(?<key>[^=]+)=(?<value>.*)")] | from_entries'

{
  "os": "amazon-linux",
  "region": "ap-south-1"
}