import cp, { type SpawnOptionsWithoutStdio } from 'node:child_process';
import readline from 'node:readline';
/**
 * Executes processes and searches their stdout for matching lines.
 */
export declare class ProcessRunnerService {
    #private;
    constructor(childProcessModule?: Pick<typeof cp, 'spawn'>, readlineModule?: Pick<typeof readline, 'createInterface'>);
    /**
     * Runs a process and returns the output as read by the given matcher. The
     * matcher is called for each line of the output with the line. The promise
     * returned by this function is resolved to the first value returned by the
     * matcher once the process has exited.
     *
     * If the matcher returns `undefined`, the line is ignored.
     *
     * If the matcher never returns a value, the promise is resolved to `undefined`.
     *
     * If the matcher throws an error, the promise is rejected with the error and
     * an attempt is made to kill the process.
     *
     * If the process exits with a non-zero exit code or if the child process API
     * emits an error, the promise is rejected with the exit code or error.
     * @param command Shell command or path to executable
     * @param args Arguments to pass to the command
     * @param options Options to pass to the spawner
     * @param matcher Function to match the output line
     */
    runFindLine<T>(command: string, args: string[], options: SpawnOptionsWithoutStdio | undefined, matcher: (line: string) => T | undefined): Promise<T | undefined>;
}