Module: Harnex::DispatchHistory

Defined in:
lib/harnex/dispatch_history.rb

Constant Summary collapse

MAX_REPO_WALK_LEVELS = 
10

Class Method Summary collapse

Class Method Details

.append(path, record) ⇒ Object 



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# File 'lib/harnex/dispatch_history.rb', line 54

def append(path, record)
  FileUtils.mkdir_p(File.dirname(path))
  line = JSON.generate(record) + "\n"
  File.open(path, File::WRONLY | File::APPEND | File::CREAT, 0o644) do |file|
    file.flock(File::LOCK_EX)
    file.write(line)
  ensure
    file.flock(File::LOCK_UN) unless file.closed?
  end
end

.build_record(session) ⇒ Object 



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# File 'lib/harnex/dispatch_history.rb', line 158

def build_record(session)
  ended_at = session.ended_at || Time.now
  status, terminal_event = classify(session)
  {
    schema_version: 1,
    record_type: "dispatch_end",
    id: session.id,
    session_id: session.session_id,
    description: session.description,
    cli: session.adapter.key,
    started_at: session.started_at.utc.iso8601,
    ended_at: ended_at.utc.iso8601,
    duration_s: (ended_at - session.started_at).to_i,
    status: status,
    terminal_event: terminal_event,
    commit_sha: commit_sha(session.git_start, session.git_end),
    tier: session.__send__(:meta_hash)["tier"],
    meta: session.__send__(:meta_hash),
    summary_out_path: session.summary_out,
    events_log_path: session.events_log_path,
    tmux_state: tmux_state(session.__send__(:summary_tmux_session))
  }
end

.build_start_record(session) ⇒ Object

Appended at registration so a running dispatch always has a durable trace; the dispatch_end row written in finalize_session! completes it.



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# File 'lib/harnex/dispatch_history.rb', line 139

def build_start_record(session)
  {
    schema_version: 1,
    record_type: "dispatch_start",
    id: session.id,
    session_id: session.session_id,
    pid: session.pid,
    host: Harnex.host_info[:host],
    cli: session.adapter.key,
    description: session.description,
    started_at: session.started_at.utc.iso8601,
    repo_root: session.repo_root,
    tier: session.__send__(:meta_hash)["tier"],
    meta: session.__send__(:meta_hash),
    summary_out_path: session.summary_out,
    events_log_path: session.events_log_path
  }
end

.classify(session) ⇒ Object 



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# File 'lib/harnex/dispatch_history.rb', line 182

def classify(session)
  return ["failed", "task_failed"] if session.respond_to?(:task_failed?) && session.task_failed?
  return ["completed", "task_complete"] if session.task_complete?
  return ["timeout", "timeout"] if session.exit_code == 124
  return ["killed", "process_kill"] if session.term_signal
  return ["completed", "process_exit"] if session.exit_code == 0

  ["failed", "dispatch_failed"]
end

.commit_sha(git_start, git_end) ⇒ Object 



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# File 'lib/harnex/dispatch_history.rb', line 192

def commit_sha(git_start, git_end)
  start_sha = git_start[:sha].to_s
  end_sha = git_end[:sha].to_s
  return nil if start_sha.empty? || end_sha.empty? || start_sha == end_sha

  end_sha
end

.end_matches_start?(end_record, start_record) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/harnex/dispatch_history.rb', line 77

def end_matches_start?(end_record, start_record)
  end_session = end_record["session_id"].to_s
  start_session = start_record["session_id"].to_s
  return end_session == start_session unless end_session.empty? || start_session.empty?

  end_record["id"].to_s == start_record["id"].to_s &&
    end_record["started_at"].to_s == start_record["started_at"].to_s
end

.end_record?(record) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/harnex/dispatch_history.rb', line 69

def end_record?(record)
  return false unless record.is_a?(Hash)
  return true if record["record_type"] == "dispatch_end"

  # Legacy end rows predate record_type.
  record["schema_version"] == 1 && record.key?("status") && !record.key?("record_type")
end

.find_git_root(start_path) ⇒ Object 



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# File 'lib/harnex/dispatch_history.rb', line 25

def find_git_root(start_path)
  path = File.expand_path(start_path.to_s.empty? ? Dir.pwd : start_path)
  path = File.dirname(path) unless File.directory?(path)

  git_root = git_toplevel(path)
  return git_root if git_root

  (MAX_REPO_WALK_LEVELS + 1).times do
    return path if File.directory?(File.join(path, ".git"))

    parent = File.dirname(path)
    break if parent == path

    path = parent
  end

  nil
end

.git_toplevel(path) ⇒ Object 



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# File 'lib/harnex/dispatch_history.rb', line 44

def git_toplevel(path)
  output, status = Open3.capture2("git", "-C", path, "rev-parse", "--show-toplevel", err: File::NULL)
  root = output.to_s.strip
  return root if status.success? && !root.empty?

  nil
rescue StandardError
  nil
end

.global_path ⇒ Object 



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# File 'lib/harnex/dispatch_history.rb', line 12

def global_path
  File.join(STATE_DIR, "dispatch.jsonl")
end

.latest_rows(path, id) ⇒ Object

Latest start row for id and any end row that completes it.



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# File 'lib/harnex/dispatch_history.rb', line 87

def latest_rows(path, id)
  latest_start = nil
  matching_end = nil

  return { start: nil, end: nil } unless File.file?(path)

  File.foreach(path) do |line|
    record = JSON.parse(line)
    next unless record.is_a?(Hash)
    next unless record["id"].to_s == id

    if start_record?(record)
      latest_start = record
      matching_end = nil
    elsif end_record?(record)
      matching_end = record if latest_start && end_matches_start?(record, latest_start)
    end
  rescue JSON::ParserError
    next
  end

  { start: latest_start, end: matching_end }
end

.live_start_record(repo_root:, id:) ⇒ Object

A dispatch_start row with no completing end row whose pid is alive on this host — evidence of a running session even when the live registry is not visible from the caller's context.



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# File 'lib/harnex/dispatch_history.rb', line 114

def live_start_record(repo_root:, id:)
  normalized_id = Harnex.normalize_id(id)
  rows = latest_rows(path_for(repo_root), normalized_id)
  start = rows[:start]
  return nil unless start
  return nil if rows[:end]
  return nil unless same_host?(start)

  pid = start["pid"]
  return nil unless pid && Harnex.alive_pid?(pid)

  start
rescue StandardError
  nil
end

.path_for(start_path = Dir.pwd, global: false) ⇒ Object 



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# File 'lib/harnex/dispatch_history.rb', line 16

def path_for(start_path = Dir.pwd, global: false)
  return global_path if global

  repo_root = find_git_root(start_path)
  return global_path unless repo_root

  File.join(repo_root, ".harnex", "dispatch.jsonl")
end

.same_host?(record) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/harnex/dispatch_history.rb', line 130

def same_host?(record)
  host = record["host"].to_s
  return true if host.empty?

  host == Harnex.host_info[:host].to_s
end

.start_record?(record) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/harnex/dispatch_history.rb', line 65

def start_record?(record)
  record.is_a?(Hash) && record["record_type"] == "dispatch_start"
end

.tmux_state(tmux_session) ⇒ Object 



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# File 'lib/harnex/dispatch_history.rb', line 200

def tmux_state(tmux_session)
  return "torn-down" if tmux_session.to_s.empty?

  system("tmux", "has-session", "-t", tmux_session.to_s, out: File::NULL, err: File::NULL) ? "live" : "torn-down"
rescue StandardError
  "torn-down"
end