Function trackFileModification

src/utils/commitAttribution.ts:403–434

(
  state: AttributionState,
  filePath: string,
  oldContent: string,
  newContent: string,
  _userModified: boolean,
  mtime: number = Date.now(),
)

 * Called after Edit/Write tool completes.
 */
export function trackFileModification(
  state: AttributionState,
  filePath: string,
  oldContent: string,
  newContent: string,
  _userModified: boolean,
  mtime: number = Date.now(),
): AttributionState {
  const normalizedPath = normalizeFilePath(filePath)
  const newFileState = computeFileModificationState(
    state.fileStates,
    filePath,
    oldContent,
    newContent,
    mtime,
  )
  if (!newFileState) {
    return state
  }

  const newFileStates = new Map(state.fileStates)
  newFileStates.set(normalizedPath, newFileState)

  logForDebugging(
    `Attribution: Tracked ${newFileState.claudeContribution} chars for ${normalizedPath}`,
  )

  return {
    ...state,
    fileStates: newFileStates,
  }
}

/**
 * Track a file creation by Claude (e.g., via bash command).