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4c4c748864
Keep images for newer Harness endpoints and retry without it only when an older gateway rejects the field before dispatch. Preserve cancellation and never retry business failures. Add regression coverage, rebuild the Host bundle, and document the compatibility fix. Follow-up to #75.
41 lines
1.5 KiB
JavaScript
41 lines
1.5 KiB
JavaScript
/**
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* Adapt the Host's Typert command gateway to the channel Harness client.
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* Programmatic production fixtures may omit the gateway and exercise other assembly paths.
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*/
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export function createHarnessCommandExecutor(ctx, provided) {
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if (provided !== undefined) {
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if (typeof provided !== 'function') throw new TypeError('commandExecutor must be a function');
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return provided;
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}
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const gateway = ctx?.typertGateway;
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if (!gateway) return undefined;
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if (typeof gateway.invoke !== 'function') {
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throw new TypeError('dsh-im requires a callable ctx.typertGateway');
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}
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return async (sessionId, line, options = {}) => {
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const request = {
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namespace: 'commands',
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method: 'execute',
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args: { agentId: sessionId, line, images: [] },
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signal: options.signal,
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};
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try {
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return await gateway.invoke(request);
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} catch (error) {
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// Newer Hosts require images; older Hosts reject that field before
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// invoking the command. Retry only that exact pre-dispatch failure so
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// a business failure can never cause compaction to run twice.
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if (error?.name !== 'TypertGatewayError'
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|| error.code !== 'arguments-invalid'
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|| error.endpoint !== 'commands/execute'
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|| error.message !== 'typert gateway: commands/execute: args fields do not match the descriptor: unexpected "images"') {
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throw error;
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}
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options.signal?.throwIfAborted();
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return gateway.invoke({
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...request,
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args: { agentId: sessionId, line },
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});
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}
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};
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}
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