@abstract-filesystem/filesystem/src/memory-driver.ts

A abstract filesystem

import { AbstractDriver } from '@abstract-filesystem/types'

export type Options = {}
export default class MemoryDriver extends AbstractDriver<Options> {
  public options: Options = {}
  protected fs = new Map<string, any>()

  async has(file: string): Promise<boolean> {
    return this.fs.has(file)
  }

  async create(file: string, content: Buffer): Promise<boolean> {
    if (this.fs.has(file)) throw new Error(`File already exists: ${file}`)
    this.fs.set(file, content)
    return true
  }

  async remove(file: string): Promise<boolean> {
    return this.fs.delete(file)
  }

  async read(file: string): Promise<Buffer> {
    if (!this.fs.has(file)) throw new Error(`File not found: ${file}`)

    return this.fs.get(file)
  }
}