import { type BridgeFreshness } from '../bridgeSources.js';
/**
 * What to do about the C# bridge after the code has been refreshed.
 *
 * Both inputs are needed, and *when* they are sampled is the whole point.
 * `hadBridge` is taken before the update: judged on the after-state alone, a
 * bridge the update destroyed is indistinguishable from one that was never
 * built, and the difference is whether the server just lost its write path.
 * `now` is taken after it: an update that moved the bridge sources leaves the
 * binary in place, so whether it survived says nothing about whether it is
 * still the bridge this code expects (#1115).
 *
 *   none      — there was no bridge, so this install does not use writes
 *   optional  — the bridge survived and was built from these very sources;
 *               rebuilding is only for a D365FO platform upgrade
 *   required  — the update removed a bridge that was there, so the write path
 *               is gone until it is rebuilt
 *   stale     — the bridge survived but was built from older sources, so the
 *               new code would run against the old bridge
 *   unstamped — the bridge survived but records no sources (built before the
 *               stamp existed); one rebuild writes the stamp
 */
export type BridgeAction = 'none' | 'optional' | 'required' | 'stale' | 'unstamped';
export declare function bridgeAction(hadBridge: boolean, now: BridgeFreshness): BridgeAction;
/**
 * Where `npm install -g` runs. Anywhere but the package itself.
 *
 * runShell defaults to repoRoot, which for an npm install IS the directory
 * npm is about to replace — and npm replaces it by renaming it aside first.
 * Windows refuses to rename a directory that any process has as its working
 * directory, so the shell and npm spawned there held the very lock that made
 * the rename fail with EBUSY/EPERM. The home directory is outside every
 * global prefix npm uses.
 */
export declare function globalInstallCwd(): string;
export declare function updateCommand(opts: {
    yes?: boolean;
}): Promise<void>;
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