Add new package with methods to save and load compressor state (#63)

Author: Azrenbeth

Cargo.lock

@@ -1,5 +1,5 @@
 [workspace]
-members = ["compressor_integration_tests"]
+members = ["auto_compressor", "compressor_integration_tests"]
 
 [package]
 authors = ["Erik Johnston"]

Cargo.toml

@@ -0,0 +1,30 @@
+[package]
+name = "auto_compressor"
+authors = ["William Ashton"]
+version = "0.1.0"
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+clap = "2.33.0"
+openssl = "0.10.32"
+postgres = "0.19.0"
+postgres-openssl = "0.5.0"
+jemallocator = "0.3.2"
+rand = "0.8.0"
+serial_test = "0.5.1"
+synapse_compress_state = { path = "../" }
+env_logger = { version = "0.9.0", git = "https://github.com/TilCreator/env_logger", branch = "fix_pipe" }
+log = "0.4.14"
+log-panics = "2.0.0"
+anyhow = "1.0.42"
+pyo3-log = "0.4.0"
+
+# Needed for pyo3 support
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[dependencies.pyo3]
+version = "0.14.1"
+features = ["extension-module","abi3-py36"] 

auto_compressor/Cargo.toml

@@ -0,0 +1,9 @@
+//! This is a tool that uses the synapse_compress_state library to
+//! reduce the size of the synapse state_groups_state table in a postgres
+//! database.
+//!
+//! It adds the tables state_compressor_state and state_compressor_progress
+//! to the database and uses these to enable it to incrementally work
+//! on space reductions
+
+pub mod state_saving;