Function getBaseCompareRef

packages/bumpy/src/core/git.ts:135–141

(rootDir: string, baseBranch: string)

 * Prefers the merge-base, falls back to `origin/<baseBranch>`.
 */
export function getBaseCompareRef(rootDir: string, baseBranch: string): string {
  if (!tryRunArgs(['git', 'rev-parse', '--verify', `origin/${baseBranch}`], { cwd: rootDir })) {
    tryRunArgs(['git', 'fetch', 'origin', baseBranch, '--depth=1'], { cwd: rootDir });
  }
  const mergeBase = tryRunArgs(['git', 'merge-base', 'HEAD', `origin/${baseBranch}`], { cwd: rootDir });
  return mergeBase || `origin/${baseBranch}`;
}

/** Get files changed on this branch compared to a base branch */
export function getChangedFiles(rootDir: string, baseBranch: string): string[] {