/**
 * Minimal but faithful `.gitignore` matcher for the indexer.
 *
 * Supports the parts of the gitignore spec that matter for skipping source
 * files: comments / blanks, `!` negation (last match wins), trailing-slash
 * directory-only rules, leading-slash / embedded-slash anchoring, and the
 * `*` / `**` / `?` / `[...]` globs (via core's {@link compileGlobMatcher}).
 *
 * Only the project-root `.gitignore` is read. Nested `.gitignore` files are not
 * walked — the common build/dependency dirs that would live deeper are already
 * covered by the indexer's always-on `DEFAULT_IGNORE`.
 *
 * Known limitation: a `!negated` file inside an ignored directory will not be
 * re-included, because the indexer prunes ignored directories before descending
 * (a large performance win). This matches most lightweight implementations.
 */
export type IgnoreMatcher = (relPath: string, isDir: boolean) => boolean;
/** Compile a list of raw `.gitignore` lines into a matcher. */
export declare function compileGitignore(lines: string[]): IgnoreMatcher;
/** Read `<projectRoot>/.gitignore` and compile it. Missing file → matches nothing. */
export declare function loadGitignoreMatcher(projectRoot: string): Promise<IgnoreMatcher>;
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