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index.js
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index.js
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#! node
'use strict';
const fs = require('fs');
const util = require('util');
const argsReg = /(\w+)="(\w+)"/g;
function readArguments() {
return new Promise((resolve, reject) => {
fs.readFile(process.argv[2], (err, data) => {
if (err) {
reject(err);
}
const content = data.toString('utf-8');
let args = parseJSON(content);
if (args === undefined){
args = {};
let matching;
while((matching = argsReg.exec(content)) != null) {
args[matching[1]] = matching[2];
}
}
args.content = content;
resolve(args);
});
});
}
function main(callback) {
return readArguments()
.then(callback)
.then((result) => {
if (util.isNullOrUndefined(result)) {
console.log('{}');
} else {
console.log(JSON.stringify(result));
}
})
.catch((err) => {
console.log(`{"failed":true, "msg":"${err.message}"}`);
throw err;
});
}
function parseJSON(str){
try{
return JSON.parse(str);
} catch(e){
return undefined;
}
}
module.exports = {
main
};