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[WIP] Check the required env variables before the build #182

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[WIP] Check the required env variables before the build #182

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17 changes: 17 additions & 0 deletions config/env.js
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Original file line number Diff line number Diff line change
Expand Up @@ -79,6 +79,23 @@ function getClientEnvironment(publicUrl) {
PUBLIC_URL: publicUrl,
}
);

const listRequired = [
"REACT_APP_SERVER_HOST",
"REACT_APP_URL",
"REACT_APP_HEADER_TITLE",
"REACT_APP_HEADER_SHORT_TITLE",
"REACT_APP_OG_TITLE",
"REACT_APP_OG_DESC",
"REACT_APP_OG_IMAGE"
];
for(const required of listRequired) {
if (raw[required] === undefined) {
throw new Error(`The ${required} environment variable is required but was not specified.`);
}
console.log(`${required}=${raw[required]}`);
}

// Stringify all values so we can feed into Webpack DefinePlugin
const stringified = {
'process.env': Object.keys(raw).reduce(
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