class Fontist::Indexes::DirectorySnapshot

Value object representing the state of a directory at a point in time Immutable - returns new instances for state changes

Attributes

directory_path [R]

files [R]

scanned_at [R]

Public Class Methods

create (directory_path)

Source

# File lib/fontist/indexes/directory_snapshot.rb, line 12
def self.create(directory_path)
  directory_path = directory_path.to_s
  files = IncrementalScanner.scan_directory(directory_path)
  new(directory_path, files, Time.now.to_i)
end

Create a new snapshot by scanning a directory Returns: DirectorySnapshot instance

from_hash (hash)

Source

# File lib/fontist/indexes/directory_snapshot.rb, line 19
def self.from_hash(hash)
  new(
    hash[:directory_path].to_s,
    hash[:files],
    hash[:scanned_at],
  )
end

Create from existing data (for cache restoration)

new (directory_path, files, scanned_at)

Source

# File lib/fontist/indexes/directory_snapshot.rb, line 59
def initialize(directory_path, files, scanned_at)
  @directory_path = directory_path
  @files = files.freeze # Immutable
  @files_by_filename = files.each_with_object({}) do |f, h|
    h[f[:filename]] = f
  end.freeze
  @scanned_at = scanned_at
end

Public Instance Methods

file_count ()

Source

# File lib/fontist/indexes/directory_snapshot.rb, line 44
def file_count
  @files.length
end

Get count of files in snapshot

file_info (filename)

Source

# File lib/fontist/indexes/directory_snapshot.rb, line 29
def file_info(filename)
  @files_by_filename[filename]
end

Get file info for a specific filename Returns: Hash with file metadata or nil if not found

has_file? (filename)

Source

# File lib/fontist/indexes/directory_snapshot.rb, line 39
def has_file?(filename)
  @files_by_filename.key?(filename)
end

Check if file exists in snapshot

older_than? (seconds)

Source

# File lib/fontist/indexes/directory_snapshot.rb, line 34
def older_than?(seconds)
  Time.now.to_i - @scanned_at > seconds
end

Check if snapshot is older than given seconds

to_h ()

Source

# File lib/fontist/indexes/directory_snapshot.rb, line 49
def to_h
  {
    directory_path: @directory_path,
    files: @files,
    scanned_at: @scanned_at,
  }
end

Convert to hash for serialization