Add lightning-storage crate

We add a new `lightning-storage` crate for `KVStore` implementations
which will supersede the `lightning-persister` crate.

Author: tnull

Cargo.toml

@@ -6,6 +6,7 @@ members = [
     "lightning-invoice",
     "lightning-net-tokio",
     "lightning-persister",
+    "lightning-storage",
     "lightning-background-processor",
     "lightning-rapid-gossip-sync"
 ]

lightning-storage/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+name = "lightning-storage"
+version = "0.0.116"
+authors = ["Elias Rohrer"]
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/lightningdevkit/rust-lightning"
+description = """
+Utilities for LDK data persistence and retrieval.
+"""
+edition = "2018"
+
+[package.metadata.docs.rs]
+all-features = true
+rustdoc-args = ["--cfg", "docsrs"]
+
+[dependencies]
+lightning = { version = "0.0.116", path = "../lightning", default-features = false, features = ["std"] }
+rand = "0.8.5"
+libc = "0.2"

lightning-storage/src/lib.rs

@@ -0,0 +1,10 @@
+//! Provides utilities for LDK data persistence and retrieval.
+//
+// TODO: Prefix these with `rustdoc::` when we update our MSRV to be >= 1.52 to remove warnings.
+#![deny(broken_intra_doc_links)]
+#![deny(private_intra_doc_links)]
+
+#![deny(missing_docs)]
+#![deny(unsafe_code)]
+
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]

msrv-no-dev-deps-check/Cargo.toml

@@ -9,5 +9,6 @@ lightning-block-sync = { path = "../lightning-block-sync", features = [ "rest-cl
 lightning-invoice = { path = "../lightning-invoice" }
 lightning-net-tokio = { path = "../lightning-net-tokio" }
 lightning-persister = { path = "../lightning-persister" }
+lightning-storage = { path = "../lightning-storage" }
 lightning-background-processor = { path = "../lightning-background-processor", features = ["futures"] }
 lightning-rapid-gossip-sync = { path = "../lightning-rapid-gossip-sync" }