Class: Kward::SessionStore

Inherits:
Object
  • Object
show all
Defined in:
lib/kward/session_store.rb

Defined Under Namespace

Classes: Session, SessionInfo

Constant Summary collapse

VERSION = 
1

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config_dir: ConfigFiles.config_dir, cwd: Dir.pwd) ⇒ SessionStore

Returns a new instance of SessionStore.



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# File 'lib/kward/session_store.rb', line 93

def initialize(config_dir: ConfigFiles.config_dir, cwd: Dir.pwd)
  @config_dir = config_dir
  @cwd = File.expand_path(cwd)
end

Instance Attribute Details

#cwd ⇒ Object (readonly)

Returns the value of attribute cwd.



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# File 'lib/kward/session_store.rb', line 98

def cwd
  @cwd
end

Class Method Details

.safe_cwd(cwd) ⇒ Object 



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# File 'lib/kward/session_store.rb', line 225

def self.safe_cwd(cwd)
  "--#{File.expand_path(cwd).sub(%r{\A[/\\]}, "").gsub(%r{[/\\:]}, "-")}--"
end

Instance Method Details

#append_record(path, record) ⇒ Object 



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# File 'lib/kward/session_store.rb', line 218

def append_record(path, record)
  File.open(path, "a", 0o600) do |file|
    file.write(JSON.generate(record))
    file.write("\n")
  end
end

#create(model: nil, reasoning_effort: nil, parent_id: nil, parent_path: nil) ⇒ Object 



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# File 'lib/kward/session_store.rb', line 100

def create(model: nil, reasoning_effort: nil, parent_id: nil, parent_path: nil)
  dir = session_dir
  FileUtils.mkdir_p(dir, mode: 0o700)
  created_at = Time.now.utc
  id = SecureRandom.uuid
  path = File.join(dir, "#{created_at.iso8601(3).tr(':', '-')}_#{id}.jsonl")
  header = {
    type: "session",
    version: VERSION,
    id: id,
    timestamp: created_at.iso8601(3),
    cwd: @cwd,
    model: model.to_s,
    reasoningEffort: reasoning_effort.to_s,
    parentId: parent_id.to_s,
    parentPath: parent_path.to_s
  }.delete_if { |_key, value| value.to_s.empty? }

  File.open(path, File::WRONLY | File::CREAT | File::EXCL, 0o600) do |file|
    file.write(JSON.generate(header))
    file.write("\n")
  end
  File.chmod(0o600, path)

  Session.new(store: self, id: id, path: path, cwd: @cwd, created_at: created_at, parent_id: parent_id, parent_path: parent_path)
end

#create_from_conversation(conversation, parent_session: nil) ⇒ Object 



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# File 'lib/kward/session_store.rb', line 127

def create_from_conversation(conversation, parent_session: nil)
  session = create(model: conversation.model, reasoning_effort: conversation.reasoning_effort, parent_id: parent_session&.id, parent_path: parent_session&.path)
  persisted_messages(conversation).each { |message| session.append_message(message) }
  session.attach(conversation)
  session
end

#create_independent_from_conversation(conversation, parent_session: nil) ⇒ Object 



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# File 'lib/kward/session_store.rb', line 134

def create_independent_from_conversation(conversation, parent_session: nil)
  create_independent_from_messages(
    persisted_messages(conversation),
    read_paths: Array(conversation.read_paths),
    model: conversation.model,
    reasoning_effort: conversation.reasoning_effort,
    parent_session: parent_session
  )
end

#create_independent_from_messages(messages, read_paths: [], model: nil, reasoning_effort: nil, parent_session: nil) ⇒ Object 



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# File 'lib/kward/session_store.rb', line 144

def create_independent_from_messages(messages, read_paths: [], model: nil, reasoning_effort: nil, parent_session: nil)
  session = create(model: model, reasoning_effort: reasoning_effort, parent_id: parent_session&.id, parent_path: parent_session&.path)
  persisted = deep_copy(messages)
  persisted.each { |message| session.append_message(message) }
  conversation = Conversation.new(messages: deep_copy(persisted), read_paths: read_paths, workspace_root: @cwd, model: model, reasoning_effort: reasoning_effort)
  session.attach(conversation)
  [session, conversation]
end

#delete_unused_session(session) ⇒ Object 



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# File 'lib/kward/session_store.rb', line 203

def delete_unused_session(session)
  path = session.path
  return false if session_named?(session)
  return false unless unused_session_file?(path)

  File.delete(path)
  true
rescue StandardError
  false
end

#load(path, workspace: Workspace.new, model: nil, reasoning_effort: nil) ⇒ Object 



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# File 'lib/kward/session_store.rb', line 160

def load(path, workspace: Workspace.new, model: nil, reasoning_effort: nil)
  resolved_path = resolve_session_path(path)
  records = records_from_file(resolved_path)
  header = session_header(records, resolved_path)

  messages = restored_messages(records)
  name = session_name(records)
  read_paths = restored_read_paths(messages, workspace)
  memory_state = restored_memory_state(records)

  runtime = session_runtime(records, header)
  conversation = Conversation.new(
    messages: messages,
    read_paths: read_paths,
    workspace_root: workspace.root,
    model: runtime["model"] || model,
    reasoning_effort: runtime["reasoningEffort"] || reasoning_effort,
    session_memories: memory_state["sessionMemories"],
    last_memory_retrieval: memory_state["lastRetrieval"]
  )
  conversation.mark_last_entry_compaction! if latest_record_type(records) == "compaction"
  session = Session.new(
    store: self,
    id: header["id"],
    path: resolved_path,
    cwd: header["cwd"].to_s,
    created_at: parse_time(header["timestamp"]) || File.mtime(resolved_path),
    name: name,
    parent_id: header["parentId"],
    parent_path: header["parentPath"]
  )
  session.attach(conversation)
  [session, conversation]
end

#recent(limit: 20) ⇒ Object 



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# File 'lib/kward/session_store.rb', line 195

def recent(limit: 20)
  recent_sessions.first(limit)
end

#recent_tree(limit: 20) ⇒ Object 



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# File 'lib/kward/session_store.rb', line 199

def recent_tree(limit: 20)
  decorate_tree(recent_sessions.first(limit))
end

#session_dir ⇒ Object 



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# File 'lib/kward/session_store.rb', line 214

def session_dir
  File.join(@config_dir, "sessions", self.class.safe_cwd(@cwd))
end

#session_location(path) ⇒ Object 



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# File 'lib/kward/session_store.rb', line 153

def session_location(path)
  resolved_path = resolve_session_path(path)
  records = records_from_file(resolved_path)
  header = session_header(records, resolved_path)
  { path: resolved_path, cwd: header["cwd"].to_s.empty? ? @cwd : header["cwd"].to_s }
end