import { ScmHistoryItemRef, ScmHistoryItemChange } from './scm-provider';
/**
 * Returns the CSS color variable for the given lane index.
 * Uses Theia's `--theia-scmGraph-*` variables, mirroring the VS Code
 * scm graph color scheme:
 *   lane 0 (current ref)  → historyItemRefColor
 *   lane 1 (remote ref)   → historyItemRemoteRefColor
 *   lane 2 (base ref)     → historyItemBaseRefColor
 *   lane 3–7              → foreground1–5
 */
export declare function laneColor(index: number): string;
export declare function getChangeStatus(change: ScmHistoryItemChange): string;
export declare function getFileName(uri: string): string;
export declare function getFilePath(uri: string): string;
/**
 * Returns the repo-relative path of the given URI, stripping the rootUri prefix.
 * Falls back to the full path if rootUri is unavailable or doesn't match.
 */
export declare function getRepoRelativePath(uri: string, rootUri: string | undefined): string;
export declare function getRefBadgeClass(ref: ScmHistoryItemRef): string;
export declare function isTagRef(ref: ScmHistoryItemRef): boolean;
export declare function isRemoteRef(ref: ScmHistoryItemRef): boolean;
/**
 * Extracts the local branch name from a remote ref name like "origin/master" → "master".
 * Falls back to the full name if no slash is found.
 */
export declare function getLocalNameFromRemote(remoteName: string): string;
export interface DeduplicatedRef {
    ref: ScmHistoryItemRef;
    /** True when both a local and a remote ref for this branch exist on this commit. */
    hasBoth: boolean;
}
/**
 * Deduplicates refs: when a local branch (e.g. "master") and a remote branch
 * (e.g. "origin/master") both appear, collapse them into one entry with `hasBoth=true`.
 * Tags and other ref types are passed through unchanged.
 */
export declare function deduplicateRefs(refs: readonly ScmHistoryItemRef[]): DeduplicatedRef[];
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