29 lines
806 B
JavaScript
29 lines
806 B
JavaScript
const fs = require("graceful-fs");
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const Base = require("lowdb/adapters/Base");
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const { sync: writeFileAtomicSync } = require("write-file-atomic");
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class FileSyncAtomic extends Base {
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read() {
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if (fs.existsSync(this.source)) {
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try {
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const data = fs.readFileSync(this.source, "utf-8").trim();
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return data ? this.deserialize(data) : this.defaultValue;
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} catch (e) {
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if (e instanceof SyntaxError) {
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e.message = `Malformed JSON in file: ${this.source}\n${e.message}`;
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}
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throw e;
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}
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} else {
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writeFileAtomicSync(this.source, this.serialize(this.defaultValue));
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return this.defaultValue;
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}
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}
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write(data) {
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return writeFileAtomicSync(this.source, this.serialize(data));
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}
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}
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module.exports = FileSyncAtomic;
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