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Automate code & data workflows with interactive notebooks
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lib/livebook/apps/preview_app_spec.ex
defmodule Livebook.Apps.PreviewAppSpec do
# App spec for deploying notebook directly from a session.
#
# This spec is used when deploying apps directly from the session,
# which we call previews.
#
# The notebook files may be stored on the local file system, so this
# app spec should always be deployed on the same node where it is
# built.
@enforce_keys [:slug, :session_id]
defstruct [:slug, :session_id, version: "1"]
end
defimpl Livebook.Apps.AppSpec, for: Livebook.Apps.PreviewAppSpec do
def load(app_spec, files_tmp_path) do
case Livebook.Sessions.fetch_session(app_spec.session_id) do
{:ok, %{pid: pid, files_dir: files_dir}} ->
notebook = Livebook.Session.get_notebook(pid)
files_tmp_dir =
files_tmp_path
|> Livebook.FileSystem.Utils.ensure_dir_path()
|> Livebook.FileSystem.File.local()
with :ok <- Livebook.Notebook.copy_files(notebook, files_dir, files_tmp_dir) do
{:ok, %{notebook: notebook, warnings: []}}
end
{:error, _reason} ->
{:error, "the session has already been closed"}
end
end
def should_warmup?(_app_spec) do
false
end
end