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48 lines
1.1 KiB
48 lines
1.1 KiB
4 years ago
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'use strict'
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exports.__esModule = true
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const log = require('debug')('eslint-module-utils:ModuleCache')
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class ModuleCache {
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constructor(map) {
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this.map = map || new Map()
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}
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/**
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* returns value for returning inline
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* @param {[type]} cacheKey [description]
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* @param {[type]} result [description]
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*/
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set(cacheKey, result) {
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this.map.set(cacheKey, { result, lastSeen: process.hrtime() })
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log('setting entry for', cacheKey)
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return result
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}
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get(cacheKey, settings) {
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if (this.map.has(cacheKey)) {
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const f = this.map.get(cacheKey)
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// check freshness
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if (process.hrtime(f.lastSeen)[0] < settings.lifetime) return f.result
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} else log('cache miss for', cacheKey)
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// cache miss
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return undefined
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}
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}
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ModuleCache.getSettings = function (settings) {
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const cacheSettings = Object.assign({
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lifetime: 30, // seconds
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}, settings['import/cache'])
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// parse infinity
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if (cacheSettings.lifetime === '∞' || cacheSettings.lifetime === 'Infinity') {
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cacheSettings.lifetime = Infinity
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}
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return cacheSettings
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}
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exports.default = ModuleCache
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