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fix: 🐛 check error code to prevent data loss

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Meeeeow 2017-08-19 00:34:00 +08:00 committed by Juan Picado @jotadeveloper
parent a91a0d3bef
commit 93aae05e63
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GPG key ID: 18AC54485952D158
1 changed files with 22 additions and 3 deletions
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25
src/lib/storage/local/local-data.js
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@ -2,6 +2,7 @@
const fs = require('fs');
const Path = require('path');
const logger = require('../../logger');
/**
* Handle local database.
@ -15,10 +16,28 @@ const Path = require('path');
*/
constructor(path) {
this.path = path;
let dbFile;
try {
this.data = JSON.parse(fs.readFileSync(this.path, 'utf8'));
} catch(_) {
this.data = {list: []};
dbFile = fs.readFileSync(this.path, 'utf8');
} catch (err) {
if (err.code === 'ENOENT') { // Only recreate if file not found to prevent data loss
this.data = {list: []};
} else {
logger.logger.error(
'Failed to read package database file, please check the error printed below and fix it manually:\n',
`File Path: ${this.path}\n\n`,
err
);
throw new Error('Package database file unreachable');
}
}
try {
this.data = JSON.parse(dbFile);
} catch(err) {
logger.logger.error(err);
throw new Error(`Package database file corrupted (invalid JSON), please fix it manually.\nFile Path: ${this.path}`);
}
}