Function getProjectFiles

src/hooks/fileSuggestions.ts:459–516

* Gets project files using git ls-files (fast) or ripgrep (fallback)

(
  abortSignal: AbortSignal,
  respectGitignore: boolean,
)

 * Gets project files using git ls-files (fast) or ripgrep (fallback)
 */
async function getProjectFiles(
  abortSignal: AbortSignal,
  respectGitignore: boolean,
): Promise<string[]> {
  logForDebugging(
    `[FileIndex] getProjectFiles called, respectGitignore=${respectGitignore}`,
  )

  // Try git ls-files first (much faster for git repos)
  const gitFiles = await getFilesUsingGit(abortSignal, respectGitignore)
  if (gitFiles !== null) {
    logForDebugging(
      `[FileIndex] using git ls-files result (${gitFiles.length} files)`,
    )
    return gitFiles
  }

  // Fall back to ripgrep
  logForDebugging(
    `[FileIndex] git ls-files returned null, falling back to ripgrep`,
  )
  const startTime = Date.now()
  const rgArgs = [
    '--files',
    '--follow',
    '--hidden',
    '--glob',
    '!.git/',
    '--glob',
    '!.svn/',
    '--glob',
    '!.hg/',
    '--glob',
    '!.bzr/',
    '--glob',
    '!.jj/',
    '--glob',
    '!.sl/',
  ]
  if (!respectGitignore) {
    rgArgs.push('--no-ignore-vcs')
  }

  const files = await ripGrep(rgArgs, '.', abortSignal)
  const relativePaths = files.map(f => path.relative(getCwd(), f))

  const duration = Date.now() - startTime
  logForDebugging(
    `[FileIndex] ripgrep: ${relativePaths.length} files in ${duration}ms`,
  )

  logEvent('tengu_file_suggestions_ripgrep', {
    file_count: relativePaths.length,
    duration_ms: duration,
  })

  return relativePaths
}