A stupidly simple key/value storage using files to persist the data. 

A stupidly simple key/value storage using files to persist some data

jaredwray

flat-cache

A stupidly simple key/value storage using files to persist the data

royriojas

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  "description": "A stupidly simple key/value storage using files to persist the data",

    "cover": "istanbul cover test/runner.js html text-summary",

    "watch": "watch-run -i -p 'test/specs/**/*.js' istanbul cover test/runner.js html text-summary"

> A stupidly simple key/value storage using files to persist the data

[![NPM Version](http://img.shields.io/npm/v/flat-cache.svg?style=flat)](https://npmjs.org/package/flat-cache)

[![Build Status](http://img.shields.io/travis/royriojas/flat-cache.svg?style=flat)](https://travis-ci.org/royriojas/flat-cache)

// loads the cache, if one does not exists for the given 

// Id a new one will be prepared to be created

var cache = require('flat-cache').load('cacheId');

cache.removeKey('key'); // removes a key from the cache

cache.save(); // very important, if you don't save no changes will be persisted.

// loads the cache from a given directory, if one does 

// not exists for the given Id a new one will be prepared to be created

var cache = require('flat-cache').load('cacheId', path.resolve('./path/to/folder'));

var cache = flatCache.load('cacheId', path.resolve('./path/to/folder'));

// The following methods are useful to clear the cache

flatCache.clearCacheById('cacheId') // removes the cacheId document if one exists.

flatCache.clearAll(); // remove the cache directory

I needed a super simple and dumb **in-memory cache** with optional disk persistance in order to make 

a script that will beutify files with `esformatter` only execute on the files that were changed since the last run.

To make that possible we need to store the `fileSize` and `modificationTime` of the files. So a simple `key/value` 

storage was needed and Bam! this module was born.

- If no directory is especified when the `load` method is called, a folder named `.cache` will be created 

  inside the module directory when `cache.save` is called. If you're committing your `node_modules` to any vcs, you

  might want to ignore the default `.cache` folder, or specify a custom directory.

- The values set on the keys of the cache should be `stringify-able` ones, meaning no circular references

- All the changes to the cache state are done to memory

- I could have used a timer or `Object.observe` to deliver the changes to disk, but I wanted to keep this module

		{
		"name": "flat-cache",
		"version": "1.0.2",
		"version": "1.0.3",
		"description": "A stupidly simple key/value storage using files to persist the data",
		@@ -5,0 +5,0 @@ "repository": "royriojas/flat-cache",

		@@ -16,5 +16,6 @@ # flat-cache
		```js
		var flatCache = require('flat-cache')
		// loads the cache, if one does not exists for the given
		// Id a new one will be prepared to be created
		var cache = require('flat-cache').load('cacheId');
		var cache = flatCache.load('cacheId');

		@@ -35,3 +36,10 @@ // sets a key on the cache
		// not exists for the given Id a new one will be prepared to be created
		var cache = require('flat-cache').load('cacheId', path.resolve('./path/to/folder'));
		var cache = flatCache.load('cacheId', path.resolve('./path/to/folder'));

		// The following methods are useful to clear the cache
		// delete a given cache
		flatCache.clearCacheById('cacheId') // removes the cacheId document if one exists.

		// delete all cache
		flatCache.clearAll(); // remove the cache directory
		```
		@@ -38,0 +46,0 @@

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