Cli: env arg isn't setting NODE_ENV

[JonathanTech]

https://github.com/sequelize/cli/blob/master/lib/helpers/generic-helper.js#L28

Also, this argument isn't documented (as far as I could tell after reading the readme).

Documentation might be enough, but I did find it odd that it internally switches the environment, but doesn't set NODE_ENV which dependent scripts like config.js might be expecting to happen.

My example config.js file that this doesn't work with:

config/config.js

"use strict";
const config = require('./index').dbConfig 
let configEnv = {}
configEnv[process.env.NODE_ENV || "development"] = config;

module.exports = configEnv

config/index.js

"use strict";
process.env.NODE_ENV = process.env.NODE_ENV || "development"
console.log(`Company Config : Using Environment "${process.env.NODE_ENV}"`)
require('dotenv').config() //load .env first if it exists
require('dotenv').config({path: './config/.env.' + process.env.NODE_ENV}) //then load env file if env values are missing or a .env file doesn't exist
module.exports = {
  authenticationServer: process.env.AUTHENTICATION_SERVER,
  zipkinServiceName   : process.env.ZIPKIN_SERVICE_NAME,
  zipkinLoggerEndpoint   : process.env.ZIPKIN_LOGGER_ENDPOINT,
  dbConfig:{
    username: process.env.DB_USER_NAME,
    password:process.env.DB_PASSWORD || null,
    database:process.env.DB,
    host: process.env.DB_HOST,
    dialect: process.env.DB_DIALECT,
    logging: process.env.DB_QUERY_LOGGING ? undefined : false
  }
}

using sequelize version --env=test
outputs

Company Config : Using Environment "development"

Sequelize [Node: 6.1.0, CLI: 2.5.1, ORM: 3.24.3]

Company Config : Using Environment "development"
Loaded configuration file "config/config.js".

[nol13]

possibly also be able to set NODE_ENV from the config so that it can use the .env file? took me a bit to realize why it wasnt working.. (mainly because i had messed with that variable on my system so it wasn't defaulting to dev as i expected, so usually not an issue, but still)

or support dotenv natively?

[bradley]

For anyone using dotenv who arrived here searching for a solution to your config.js/database.js file not loading your env variables, you probably just need to require dotenv:

require('dotenv').config(); // magic


module.exports = {
  "development" : {
    "database" : process.env.POSTGRES_DATABASE,
    "username" : process.env.POSTGRES_USERNAME,
    "password" : process.env.POSTGRES_PASSWORD,
    "host" : process.env.POSTGRES_HOST,
    "dialect" : "postgres"
  },

  "test" : {
    "database" : process.env.POSTGRES_DATABASE,
    "username" : process.env.POSTGRES_USERNAME,
    "password" : process.env.POSTGRES_PASSWORD,
    "host" : process.env.POSTGRES_HOST,
    "dialect" : "postgres"
  },

  "production" : {
    "database" : process.env.POSTGRES_DATABASE,
    "username" : process.env.POSTGRES_USERNAME,
    "password" : process.env.POSTGRES_PASSWORD,
    "host" : process.env.POSTGRES_HOST,
    "dialect" : "postgres"
  }
}

[notrev]

It took me quite some time to find out how to set a different environment other than the default development.
The documentation does not explain how to set that. I had to look into the code to find out that you can set NODE_ENV to the one you want.

I also saw that there is the possibility of using an option named env for the commands, but when I tried it didn't work. Has anyone had success on using it?
I have a local environment set in the config file, and tried sequelize db:create --env local, but it didn't work

[KariiO]

@notrev I spend another week trying find how this works...I am glad that I found your post!

Would be nice to put this --env arg/param to docs ;)

[cmeza]

You can find the --env mentioned in the help output too. I think _someone_ thinks it is obvious to check there vs put it in documentation.

C:\Users\cmeza\dev\specialproject (release/2.15) ([email protected])
λ sequelize --help db:migrate

Sequelize CLI [Node: 8.1.4, CLI: 3.0.0, ORM: 3.30.0]

Options:
  --version          Show version number                                                                                                 [boolean]

  --help             Show help                                                                                                           [boolean]

  --env              The environment to run the command in                                                       [string] [default: "development"]

  --config           The path to the config file                                                                                          [string]

  --options-path     The path to a JSON file with additional options                                                                      [string]

  --migrations-path  The path to the migrations folder                                                            [string] [default: "migrations"]

  --seeders-path     The path to the seeders folder                                                                  [string] [default: "seeders"]

  --models-path      The path to the models folder                                                                    [string] [default: "models"]

  --url              The database connection string to use. Alternative to using --config files                                           [string]

  --debug            When available show various debug information                                                      [boolean] [default: false]

[slsriehl]

The trouble I had with this is that the --env argument picks the correct object from inside the config object, so it can connect to the db, but if the NODE_ENV isn't also set, the index.js will set its own env to 'development', wrecking the new Sequelize() object. I did some digging into the process when you run "sequelize" using the CLI, & the --env argument appears at process.argv[4]. So in index.js I replaced

var env       = process.env.NODE_ENV || 'development';

with

const env = process.env.NODE_ENV ? process.env.NODE_ENV : process.argv[4];

This also works if you don't pass the --env argument. The default process.argv[4] on the command line is "development".

Also, it allows you define your own environment names, eg, sandbox, staging, etc.

Using Sequelize "4.42.0" with Sequelize CLI "5.4.0"

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