Files
start-os/sdk/package/lib/util/Volume.ts
Aiden McClelland f2142f0bb3 add documentation for ai agents (#3115)
* add documentation for ai agents

* docs: consolidate CLAUDE.md and CONTRIBUTING.md, add style guidelines

- Refactor CLAUDE.md to reference CONTRIBUTING.md for build/test/format info
- Expand CONTRIBUTING.md with comprehensive build targets, env vars, and testing
- Add code style guidelines section with conventional commits
- Standardize SDK prettier config to use single quotes (matching web)
- Add project-level Claude Code settings to disable co-author attribution

* style(sdk): apply prettier with single quotes

Run prettier across sdk/base and sdk/package to apply the
standardized quote style (single quotes matching web).

* docs: add USER.md for per-developer TODO filtering

- Add agents/USER.md to .gitignore (contains user identifier)
- Document session startup flow in CLAUDE.md:
  - Create USER.md if missing, prompting for identifier
  - Filter TODOs by @username tags
  - Offer relevant TODOs on session start

* docs: add i18n documentation task to agent TODOs

* docs: document i18n ID patterns in core/

Add agents/i18n-patterns.md covering rust-i18n setup, translation file
format, t!() macro usage, key naming conventions, and locale selection.
Remove completed TODO item and add reference in CLAUDE.md.

* chore: clarify that all builds work on any OS with Docker
2026-02-06 00:10:16 +01:00

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2.6 KiB
TypeScript

import * as fs from 'node:fs/promises'
import * as T from '../../../base/lib/types'
/**
* Common interface for objects that have a subpath method (Volume, SubContainer, etc.)
*/
export interface PathBase {
subpath(path: string): string
}
/**
* @description Represents a volume in the StartOS filesystem.
* Provides utilities for reading and writing files within the volume.
*/
export class Volume<Id extends string = string> implements PathBase {
/**
* The absolute path to this volume's root directory
*/
readonly path: string
constructor(readonly id: Id) {
this.path = `/media/startos/volumes/${id}`
}
/**
* Get the absolute path to a file or directory within this volume
* @param subpath Path relative to the volume root
*/
subpath(subpath: string): string {
return subpath.startsWith('/')
? `${this.path}${subpath}`
: `${this.path}/${subpath}`
}
/**
* @description Read a file from this volume
* @param subpath Path relative to the volume root (e.g. "config.json" or "/data/file.txt")
* @param options Optional read options (same as node:fs/promises readFile)
*/
async readFile(
subpath: string,
options?: Parameters<typeof fs.readFile>[1],
): Promise<Buffer | string> {
const fullPath = this.subpath(subpath)
return fs.readFile(fullPath, options)
}
/**
* @description Write a file to this volume
* @param subpath Path relative to the volume root (e.g. "config.json" or "/data/file.txt")
* @param data The data to write
* @param options Optional write options (same as node:fs/promises writeFile)
*/
async writeFile(
subpath: string,
data:
| string
| NodeJS.ArrayBufferView
| Iterable<string | NodeJS.ArrayBufferView>
| AsyncIterable<string | NodeJS.ArrayBufferView>,
options?: Parameters<typeof fs.writeFile>[2],
): Promise<void> {
const fullPath = this.subpath(subpath)
const dir = fullPath.replace(/\/[^/]*\/?$/, '')
await fs.mkdir(dir, { recursive: true })
return fs.writeFile(fullPath, data, options)
}
}
/**
* Type-safe volumes object that provides Volume instances for each volume defined in the manifest
*/
export type Volumes<Manifest extends T.SDKManifest> = {
[K in Manifest['volumes'][number]]: Volume<K>
}
/**
* Creates a type-safe volumes object from a manifest
*/
export function createVolumes<Manifest extends T.SDKManifest>(
manifest: Manifest,
): Volumes<Manifest> {
const volumes = {} as Volumes<Manifest>
for (const volumeId of manifest.volumes) {
;(volumes as any)[volumeId] = new Volume(volumeId)
}
return volumes
}