src/vs/platform/agentHost/node/copilot/copilotSlashCommandProvider.ts
138 LOC · 96 covered · 42 uncovered · 28 ranges · 869 concepts · 6 introducers · 409 tests
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/*---------------------------------------------------------------------------------------------
copilotAgentSession.ts ×141
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import type { CopilotClient } from '@github/copilot-sdk';
import { ILogService } from '../../../log/common/log.js';
import { raceTimeout } from '../../../../base/common/async.js';
type RuntimeSlashCommandCatalog = {
readonly commands: readonly RuntimeSlashCommandInfo[];
readonly byName: ReadonlyMap<string, RuntimeSlashCommandInfo>;
readonly byAlias: ReadonlyMap<string, RuntimeSlashCommandInfo>;
};
type RuntimeSlashCommandCache = {
value?: RuntimeSlashCommandCatalog;
inFlight?: Promise<RuntimeSlashCommandCatalog>;
};
type RuntimeSlashCommandInfo = Awaited<ReturnType<CopilotClient['rpc']['commands']['list']>>['commands'][number];
export class CopilotSlashCommandProvider {
private _runtimeSlashCommandCache: RuntimeSlashCommandCache | undefined;
constructor(
private readonly listCommands: () => Promise<RuntimeSlashCommandInfo[]>,
copilotSlashCommandProvider.ts ×1
@ILogService private readonly _logService: ILogService,
) { }
async getSlashCommands(options?: { readonly maxWaitMs?: number }): Promise<readonly RuntimeSlashCommandInfo[]> {
try {
const maxWaitMs = options?.maxWaitMs;
const catalog = await this._getRuntimeSlashCommandCatalog(maxWaitMs === undefined ? undefined : Math.max(0, maxWaitMs));
return catalog.commands;
} catch (err) {
this._logService.warn(`[Copilot] rpc.commands.list failed`, err);
return [];
}
}
public async resolveSlashCommand(command: string, maxWaitMs: number | undefined = undefined): Promise<RuntimeSlashCommandInfo | undefined> {
if (!key) {
return undefined;
}
const catalog = await this._getRuntimeSlashCommandCatalog(maxWaitMs);
copilotSlashCommandProvider.ts ×12
return catalog.byName.get(key) ?? catalog.byAlias.get(key);
}
public clearCache(): void {
if (this._runtimeSlashCommandCache) {
// Keep in-flight promises isolated from fresh lookups after invalidation.
this._runtimeSlashCommandCache = undefined;
}
}
private async _getRuntimeSlashCommandCatalog(maxWaitMs: number | undefined = undefined): Promise<RuntimeSlashCommandCatalog> {
if (cache.value) {
}
const inFlight = this._refreshRuntimeSlashCommandCatalog(cache);
if (maxWaitMs === undefined) {
return inFlight;
}
const settled = await raceTimeout(inFlight, maxWaitMs);
if (settled) {
return settled;
}
if (cache.value) {
return cache.value;
}
return {
commands: [],
byName: new Map(),
byAlias: new Map(),
};
private async _refreshRuntimeSlashCommandCatalog(cache: RuntimeSlashCommandCache): Promise<RuntimeSlashCommandCatalog> {
return cache.inFlight;
}
.then(result => this._toRuntimeSlashCommandCatalog(result));
cache.inFlight = inFlight;
inFlight.then(catalog => {
if (this._runtimeSlashCommandCache === cache) {
cache.value = catalog;
cache.inFlight = undefined;
}
}, () => {
if (this._runtimeSlashCommandCache === cache) {
cache.inFlight = undefined;
if (!cache.value) {
this._runtimeSlashCommandCache = undefined;
}
}
return inFlight;
}
private _toRuntimeSlashCommandCatalog(commands: readonly RuntimeSlashCommandInfo[]): RuntimeSlashCommandCatalog {
const byAlias = new Map<string, RuntimeSlashCommandInfo>();
const deduped: RuntimeSlashCommandInfo[] = [];
for (const command of commands) {
const nameKey = this._normalizeSlashCommandKey(command.name);
copilotSlashCommandProvider.ts ×3
if (!nameKey) {
continue;
}
if (!canonical) {
canonical = command;
byName.set(nameKey, canonical);
deduped.push(canonical);
}
for (const alias of command.aliases ?? []) {
if (!aliasKey || byAlias.has(aliasKey)) {
continue;
}
}
}
private _normalizeSlashCommandKey(command: string): string | undefined {
if (!trimmed) {
return undefined;
}
const slashStripped = trimmed.charCodeAt(0) === 0x2f /* / */ ? trimmed.slice(1) : trimmed;
copilotSlashCommandProvider.ts ×12
return slashStripped.toLowerCase();
}