add state file

This allows storing the swarm ID and additionally discovered seeds,
which prevents a formerly genesis node to start a new document.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/state.rs b/src/state.rs
index 785eee8..37bde4a 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -602,6 +602,8 @@ pub(crate) struct AppState {
     /// HTTP API users who may write protocol data through the store API
     /// (`--protocol-writers`).
     pub(crate) protocol_writers: Arc<std::collections::HashSet<String>>,
+    /// What this node remembers across restarts (`--state-file`), if configured.
+    pub(crate) state_file: Option<Arc<crate::swarm::state_file::StateFile>>,
     /// The effective configuration with sources, imported values left out
     /// (`config::Loaded::report`), for `GET /admin/config`.
     pub(crate) config: Arc<serde_json::Value>,