/**
 * Git operations wrapper — all local git interactions go through here.
 */
export declare function isInsideRepo(cwd?: string): Promise<boolean>;
export declare function getRepoRoot(cwd?: string): Promise<string>;
export interface RemoteInfo {
    name: string;
    url: string;
    owner: string;
    repo: string;
}
export interface RemoteBranchHead {
    remoteRef: string;
    branch: string;
    hash: string;
}
export declare function getGitHubRemote(cwd?: string): Promise<RemoteInfo | null>;
/**
 * List remote branch heads and their commit hashes.
 */
export declare function listRemoteBranchHeads(remote?: string, cwd?: string): Promise<RemoteBranchHead[]>;
export declare function getCurrentBranch(cwd?: string): Promise<string>;
/** Current branch's upstream (e.g. origin/feature-x), or null if none. */
export declare function getUpstreamRef(cwd?: string): Promise<string | null>;
export declare function branchExists(branch: string, cwd?: string): Promise<boolean>;
export declare function createBranch(name: string, startPoint: string, cwd?: string): Promise<void>;
export declare function deleteBranch(name: string, force?: boolean, cwd?: string): Promise<void>;
export declare function deleteRemoteBranch(remote: string, branch: string, cwd?: string): Promise<void>;
export declare function checkout(branch: string, cwd?: string): Promise<void>;
export interface CommitInfo {
    hash: string;
    shortHash: string;
    subject: string;
    body: string;
    trailers: Record<string, string>;
    author: string;
    date: string;
}
/**
 * List commits in range (oldest first). Default range: baseBranch..HEAD
 */
export declare function listCommits(range: string, cwd?: string): Promise<CommitInfo[]>;
/**
 * Get diff stats for a commit range: files changed, insertions, deletions.
 */
export interface DiffStats {
    filesChanged: number;
    insertions: number;
    deletions: number;
    totalLines: number;
    files: FileStats[];
}
export interface FileStats {
    file: string;
    insertions: number;
    deletions: number;
}
export declare function getDiffStats(range: string, cwd?: string): Promise<DiffStats>;
/**
 * Get diff stats for a single commit.
 */
export declare function getCommitDiffStats(commitHash: string, cwd?: string): Promise<DiffStats>;
export interface RebaseResult {
    success: boolean;
    conflictFiles?: string[];
    noRebaseInProgress?: boolean;
}
export declare function rebase(onto: string, cwd?: string): Promise<RebaseResult>;
/**
 * Rebase --onto: replay commits from `upstream..HEAD` onto `newBase`.
 * Essential for squash merge handling where the original commits
 * aren't ancestors of the new base.
 */
export declare function rebaseOnto(newBase: string, upstream: string, cwd?: string): Promise<RebaseResult>;
/**
 * Get the tree hash for a commit (content identity without commit metadata).
 * Two commits with the same tree hash have identical file contents.
 */
/**
 * Get the tree hash for a commit (content identity without commit metadata).
 * Two commits with the same tree hash have identical file contents.
 */
export declare function getTreeHash(ref: string, cwd?: string): Promise<string | null>;
/**
 * Check if a local commit and a remote branch point to the same tree.
 * When true, force-pushing would change the SHA but not the content —
 * a "cosmetic" push that unnecessarily triggers stale review dismissal.
 */
export declare function hasSameTree(localRef: string, remoteRef: string, cwd?: string): Promise<boolean>;
/**
 * Check if a local commit's diff vs base is identical to the remote branch's diff vs base.
 * More robust than tree comparison for stacked PRs where the base changed.
 * Returns true if the PR's actual code contribution is unchanged.
 */
export declare function hasSameDiff(localRef: string, remoteRef: string, baseBranch: string, cwd?: string): Promise<boolean>;
/**
 * Merge a branch into the current branch (forward merge, no force-push needed).
 * This is the review-safe alternative to rebase: it preserves PR approvals
 * because GitHub only dismisses reviews on force-push or diff-changing pushes.
 *
 * When the base branch is merged into a PR branch and the PR's own changes
 * haven't changed, the PR diff remains identical → approvals survive.
 */
export declare function mergeInto(branch: string, cwd?: string): Promise<RebaseResult>;
/**
 * Abort a merge in progress.
 */
export declare function mergeAbort(cwd?: string): Promise<void>;
export declare function rebaseAbort(cwd?: string): Promise<void>;
export declare function rebaseContinue(cwd?: string): Promise<RebaseResult>;
export declare function hasUncommittedChanges(cwd?: string): Promise<boolean>;
export declare function stash(message?: string, cwd?: string): Promise<void>;
export declare function stashPop(cwd?: string): Promise<void>;
export declare function pushBranch(remote: string, localBranch: string, remoteBranch: string, force?: boolean | 'lease', cwd?: string): Promise<void>;
export declare function fetch(remote: string, branch?: string, cwd?: string): Promise<void>;
/** True if remote branch has commits we don't have (would be overwritten by force-push). */
export declare function isRemoteBranchAhead(remote: string, remoteBranch: string, localCommit: string, cwd?: string): Promise<boolean>;
export declare function getUsername(cwd?: string): Promise<string>;
export declare function getHeadHash(cwd?: string): Promise<string>;
export declare function getMergeBase(branch1: string, branch2: string, cwd?: string): Promise<string>;
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