Function grep

apps/sim/lib/copilot/vfs/operations.ts:133–216

(
  files: Map<string, string>,
  pattern: string,
  path?: string,
  opts?: GrepOptions
)

 * but not in line modes.
 */
export function grep(
  files: Map<string, string>,
  pattern: string,
  path?: string,
  opts?: GrepOptions
): GrepMatch[] | string[] | GrepCountEntry[] {
  const maxResults = opts?.maxResults ?? 100
  const outputMode = opts?.outputMode ?? 'content'
  const ignoreCase = opts?.ignoreCase ?? false
  const showLineNumbers = opts?.lineNumbers ?? true
  const contextLines = opts?.context ?? 0

  const flags = ignoreCase ? 'gi' : 'g'
  let regex: RegExp
  try {
    regex = new RegExp(pattern, flags)
  } catch {
    return []
  }

  if (outputMode === 'files_with_matches') {
    const matchingFiles: string[] = []
    for (const [filePath, content] of files) {
      if (path && !pathWithinGrepScope(filePath, path)) continue
      regex.lastIndex = 0
      if (regex.test(content)) {
        matchingFiles.push(filePath)
        if (matchingFiles.length >= maxResults) break
      }
    }
    return matchingFiles
  }

  if (outputMode === 'count') {
    const counts: GrepCountEntry[] = []
    for (const [filePath, content] of files) {
      if (path && !pathWithinGrepScope(filePath, path)) continue
      const lines = splitLinesForGrep(content)
      let count = 0
      for (const line of lines) {
        regex.lastIndex = 0
        if (regex.test(line)) count++
      }
      if (count > 0) {
        counts.push({ path: filePath, count })
        if (counts.length >= maxResults) break
      }
    }
    return counts
  }

  // Default: 'content' mode
  const matches: GrepMatch[] = []
  for (const [filePath, content] of files) {
    if (path && !pathWithinGrepScope(filePath, path)) continue

    const lines = splitLinesForGrep(content)
    for (let i = 0; i < lines.length; i++) {