Class: Clacky::Tools::Edit

Inherits:
Base
  • Object
show all
Defined in:
lib/clacky/tools/edit.rb

Instance Method Summary collapse

Methods inherited from Base

#category, #description, #name, #parameters, #to_function_definition

Instance Method Details

#execute(path:, old_string:, new_string:, replace_all: false, working_dir: nil) ⇒ Object 



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# File 'lib/clacky/tools/edit.rb', line 34

def execute(path:, old_string:, new_string:, replace_all: false, working_dir: nil)
  # Expand ~ to home directory, resolve relative paths against working_dir
  path = expand_path(path, working_dir: working_dir)

  unless File.exist?(path)
    return { error: "File not found: #{path}" }
  end

  unless File.file?(path)
    return { error: "Path is not a file: #{path}" }
  end

  begin
    # Scrub invalid UTF-8 bytes at read time — otherwise editing a file
    # that contains non-UTF-8 bytes would poison history / error messages
    # and cause JSON.generate to fail during replay.
    content = safe_utf8(File.read(path))

    # Detect the file's dominant line-ending style BEFORE any
    # modification. Windows-created files (and /mnt/c on WSL) use
    # CRLF; AI-supplied old_string/new_string always use LF. Without
    # preservation, the replaced fragment introduces LF into a CRLF
    # file, creating mixed line endings that confuse Git diff and
    # Windows IDEs.
    preserve_crlf = content.include?("\r\n")

    # Find matching string using layered strategy (shared with preview)
    match_result = Utils::StringMatcher.find_match(content, old_string)

    unless match_result
      return build_helpful_error(content, old_string, path)
    end

    actual_old_string = match_result[:matched_string]
    occurrences = match_result[:occurrences]

    # If not replace_all and multiple occurrences, warn about ambiguity
    if !replace_all && occurrences > 1
      return {
        error: "String appears #{occurrences} times in the file. Use replace_all: true to replace all occurrences, " \
               "or provide a more specific string that appears only once."
      }
    end

    # Perform literal replacement.
    #
    # NOTE: Use the block form (`sub(old) { new }`) instead of the
    # two-arg form (`sub(old, new)`). The two-arg form interprets
    # backslash escapes (\&, \1, \`, \', \\) in the replacement
    # as sed-style backreferences, silently mangling literal
    # backslashes and these escape sequences. The block form
    # performs no such interpretation, matching the edit tool's
    # literal-replacement contract.
    content = if replace_all
                content.gsub(actual_old_string) { new_string }
              else
                content.sub(actual_old_string) { new_string }
              end

    # Preserve the original line-ending style: if the file was CRLF,
    # re-normalize the entire content to CRLF so the newly inserted
    # LF fragments (from new_string) match the rest of the file.
    content = normalize_line_endings(content, :crlf) if preserve_crlf

    File.write(path, content)

    {
      path: File.expand_path(path),
      replacements: replace_all ? occurrences : 1,
      error: nil
    }
  rescue Errno::EACCES => e
    { error: "Permission denied: #{e.message}" }
  rescue StandardError => e
    { error: "Failed to edit file: #{e.message}" }
  end
end

#format_call(args) ⇒ Object 



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# File 'lib/clacky/tools/edit.rb', line 147

def format_call(args)
  path = args[:file_path] || args["file_path"] || args[:path] || args["path"]
  "Edit(#{Utils::PathHelper.safe_basename(path)})"
end

#format_result(result) ⇒ Object 



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# File 'lib/clacky/tools/edit.rb', line 152

def format_result(result)
  return result[:error] if result[:error]

  replacements = result[:replacements] || result["replacements"] || 1
  "Modified #{replacements} occurrence#{replacements > 1 ? "s" : ""}"
end