57 lines
1.3 KiB
JavaScript
57 lines
1.3 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, '__esModule', { value: true });
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const fs = require('fs');
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const path = require('path');
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const _memo = {
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_pid: process.pid
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};
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async function getMemo(config) {
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const options = getOptions(config);
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try {
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const memo = JSON.parse(await fs.promises.readFile(options.file, "utf-8")) || {};
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if (!memo._pid) {
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throw new Error("Memo lacks _pid");
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}
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if (memo._pid === _memo._pid || !isAlive(memo.pid)) {
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Object.assign(_memo, memo);
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_memo._pid = process.pid;
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}
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} catch (e) {
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}
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return _memo;
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}
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async function setMemo(memo, config) {
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const options = getOptions(config);
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Object.assign(_memo, memo);
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_memo._pid = process.pid;
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try {
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await fs.promises.mkdir(options.dir);
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} catch (e) {
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}
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try {
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await fs.promises.writeFile(options.file, JSON.stringify(_memo), "utf-8");
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} catch (e) {
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}
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}
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function getOptions(config) {
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const options = {...config};
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options.name = options.name || "default";
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options.dir = options.dir || path.resolve(process.cwd(), "node_modules/.cache/fs-memo");
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options.file = options.file || path.resolve(options.dir, options.name + ".json");
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return options;
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}
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function isAlive(pid) {
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try {
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process.kill(pid, 0);
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return true;
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} catch (e) {
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return e.code === "EPERM";
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}
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}
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exports.getMemo = getMemo;
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exports.setMemo = setMemo;
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