25dcd7293c
Delete design-session citations (decision/audit/plan ordinals, stack positions), change narration, review choreography, and reviewer-addressed justification from comments, JSDoc, docs, READMEs, Agent Notes, tests, and generator templates; restate every affected fact as current-state contract prose. Fix generated docs at their sources and regenerate the catalogs and cordis-surface regions; re-paste type-equiv blocks; update every bilingual counterpart and re-record the pairs. Record the citation rule in the committed-artifact-citations Agent Note.
51 lines
1.9 KiB
TypeScript
51 lines
1.9 KiB
TypeScript
/**
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* Transport factory: creates the appropriate MCP transport based on the
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* plugin's resolved config. Stdio spawns a child process (with credential
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* scrubbing); Streamable HTTP connects to a URL.
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*
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* @module
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*/
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import type { Transport } from '@modelcontextprotocol/sdk/shared/transport.js'
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import { StdioClientTransport } from '@modelcontextprotocol/sdk/client/stdio.js'
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import { StreamableHTTPClientTransport } from '@modelcontextprotocol/sdk/client/streamableHttp.js'
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import { scrubbedParentEnv } from '@deepseek-ai/dsh-subprocess'
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import type { Config } from './index.ts'
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/**
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* The subprocess seam's scrubbed parent env (credential-shaped and stale
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* `DSH_*` names dropped), plus the spec's explicit env. The MCP SDK owns the
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* actual spawn, so this transport shares the scrub definition rather than the
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* spawn path.
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*/
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function buildChildEnv(extra: Record<string, string>): Record<string, string> {
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return { ...scrubbedParentEnv(), ...extra }
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}
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/**
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* Create an MCP transport from the resolved plugin config.
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*
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* @param config - Resolved plugin config discriminated on `transport`.
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* @returns A connected-ready MCP Transport (stdio or Streamable HTTP).
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*/
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export function createTransport(config: Config): Transport {
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switch (config.transport) {
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case 'stdio':
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return new StdioClientTransport({
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command: config.command,
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args: config.args,
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env: buildChildEnv(config.env),
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cwd: config.cwd,
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})
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case 'streamable-http':
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// The MCP SDK's StreamableHTTPClientTransport has optional callback
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// properties typed without `| undefined` (exactOptionalPropertyTypes
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// mismatch with the Transport interface); the SDK constructed the
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// object, so the cast records only that widening.
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return new StreamableHTTPClientTransport(
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new URL(config.url),
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{ requestInit: { headers: config.headers } },
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) as Transport
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}
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}
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