mirror of
https://github.com/deepseek-ai/deepseek-harness
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92 lines
3.3 KiB
TypeScript
92 lines
3.3 KiB
TypeScript
/**
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* Service Definition for the `ctx.bash` capability seam, covering foreground commands and background process
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* handles. Task ids, ownership, polling, and notices belong to
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* `@deepseek-ai/dsh-tasks`, keeping executors independent of sessions.
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* @module @deepseek-ai/dsh-bash
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*/
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import { Context, Service } from 'cordis'
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import type { SandboxMode } from '@deepseek-ai/dsh-sandbox'
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import type { BashExecRequest, BashExecSpec, BashProcess, BashRunResult } from './types.ts'
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export { DSH_ENV_PREFIX } from './types.ts'
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export type {
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BashExecRequest,
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BashExecSpec,
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BashProcess,
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BashProcessRead,
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BashProcessStatus,
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BashRunResult,
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BashSandboxInfo,
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CollectedOutput,
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DshEnvironment,
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DshEnvironmentKey,
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} from './types.ts'
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export { parseExitStatus } from './render.ts'
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export type { ParsedExitStatus } from './render.ts'
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declare module 'cordis' {
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interface Context {
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bash: BashExecutor
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}
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}
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/**
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* Abstract bash execution service. Subclass, implement the abstract methods,
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* and load the subclass as a plugin — it registers as `ctx.bash` (one
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* implementation per context; loading a second throws, which is cordis'
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* standard duplicate-service behavior).
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*
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* Implementations must honor these semantics:
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* - {@link run} rejects only for infrastructure failures. Nonzero exits,
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* timeout kills, and abort kills resolve with a {@link BashRunResult}.
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* - {@link start} returns immediately; no timeout applies to background
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* processes. `done` settles at process close and never rejects; spawn
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* failures settle as `killed` with the error on stderr.
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* - {@link BashProcess.readOutput} is incremental: consecutive reads never
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* repeat output. Lossy reads report truncation and available spill files.
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* - A still-running background process is stopped and awaited when its
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* owning composition tears down. With the subprocess seam that
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* boundary is `ctx.subprocess` disposal, so a background process survives
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* an executor-only reload.
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*/
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export abstract class BashExecutor extends Service {
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constructor(ctx: Context) {
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super(ctx, 'bash')
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}
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/**
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* The sandbox mode this executor applies by default, or `undefined` when it
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* does not sandbox commands.
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* @returns the configured default sandbox mode, when supported.
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*/
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get sandboxMode(): SandboxMode | undefined {
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return undefined
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}
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/**
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* Apply implementation-owned defaults and caps to a request before execution.
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* @param request - the caller's request; omitted fields get this
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* implementation's defaults, capped fields are clamped.
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* @returns the fully-specified spec to hand to {@link run}/{@link start}.
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*/
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abstract resolve(request: BashExecRequest): BashExecSpec
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/**
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* Run a command in the foreground; resolves when it finishes.
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* @param spec - a resolved spec from {@link resolve}, never a raw request.
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* @returns the outcome; nonzero exits, timeout kills, and abort kills
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* resolve with a descriptive result rather than reject.
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*/
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abstract run(spec: BashExecSpec): Promise<BashRunResult>
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/**
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* Start a background process and return its handle immediately.
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* @param spec - a resolved spec from {@link resolve}, never a raw request.
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* @returns the live process handle (reads, kill, quiescence promise).
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*/
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abstract start(spec: BashExecSpec): BashProcess
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}
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export default BashExecutor
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