firebase functions:config:set from .env.json file

jsonToEnv.js

//from https://github.com/firebase/firebase-tools/issues/406

const env = process.argv[2];
const arg = process.argv[3];

const configPath = `./.env.${env}.json`;

const collectConfigLines = (o, propPath, configLines) => {
    propPath = propPath || '';
    configLines = configLines || [];
    for (const key of Object.keys(o)) {
        const newPropPath = propPath + key;
        if (typeof o[key] === 'object') {
            collectConfigLines(o[key], newPropPath + '.', configLines);
        } else if (o[key] != null && o[key] !== '') {
            configLines.push(`${newPropPath}=${JSON.stringify(o[key])}`);
        }
    }
}

const config = require(configPath);
const configLines = [];
collectConfigLines(config, '', configLines);

const cp = require('child_process');
const command = `firebase functions:config:set ${configLines.join(' ')}`;


if (arg === "--dry-run") {
    console.log(command);
} else {
    cp.exec(command);
}