preferred-node-version/build/src/package.js

Get the preferred Node.js version of a project or user

import isPlainObj from"is-plain-obj";


export const loadPackageJson=(content)=>{
if(!seemsValidPackageJson(content)){
return
}

const packageJson=safeJsonParse(content);

if(!objectHasEnginesNode(packageJson)){
return
}

return packageJson.engines.node
};



const seemsValidPackageJson=(content)=>
PACKAGE_JSON_VALID_WORDS.every((word)=>content.includes(word));

const PACKAGE_JSON_VALID_WORDS=["\"engines\"","\"node\""];

const safeJsonParse=(content)=>{
try{
return JSON.parse(content)
}catch{}
};

const objectHasEnginesNode=(packageJson)=>
isPlainObj(packageJson)&&
isPlainObj(packageJson.engines)&&
typeof packageJson.engines.node==="string"&&
packageJson.engines.node.trim()!=="";