Fix clippy lints

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "rust-analyzer.checkOnSave.command": "clippy"
+}

CONTRIBUTING.md

@@ -1,80 +0,0 @@
-# Contributing
-
-## Sign off
-
-In order to have a concrete record that your contribution is intentional
-and you agree to license it under the same terms as the project's license, we've adopted the
-same lightweight approach that the Linux Kernel
-[submitting patches process](
-https://www.kernel.org/doc/html/latest/process/submitting-patches.html#sign-your-work-the-developer-s-certificate-of-origin>),
-[Docker](https://github.com/docker/docker/blob/master/CONTRIBUTING.md), and many other
-projects use: the DCO ([Developer Certificate of Origin](http://developercertificate.org/)).
-This is a simple declaration that you wrote
-the contribution or otherwise have the right to contribute it to Matrix:
-
-```
-Developer Certificate of Origin
-Version 1.1
-
-Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
-660 York Street, Suite 102,
-San Francisco, CA 94110 USA
-
-Everyone is permitted to copy and distribute verbatim copies of this
-license document, but changing it is not allowed.
-
-Developer's Certificate of Origin 1.1
-
-By making a contribution to this project, I certify that:
-
-(a) The contribution was created in whole or in part by me and I
-    have the right to submit it under the open source license
-    indicated in the file; or
-
-(b) The contribution is based upon previous work that, to the best
-    of my knowledge, is covered under an appropriate open source
-    license and I have the right under that license to submit that
-    work with modifications, whether created in whole or in part
-    by me, under the same open source license (unless I am
-    permitted to submit under a different license), as indicated
-    in the file; or
-
-(c) The contribution was provided directly to me by some other
-    person who certified (a), (b) or (c) and I have not modified
-    it.
-
-(d) I understand and agree that this project and the contribution
-    are public and that a record of the contribution (including all
-    personal information I submit with it, including my sign-off) is
-    maintained indefinitely and may be redistributed consistent with
-    this project or the open source license(s) involved.
-```
-
-If you agree to this for your contribution, then all that's needed is to
-include the line in your commit or pull request comment:
-
-```
-Signed-off-by: Your Name <your@email.example.org>
-```
-
-We accept contributions under a legally identifiable name, such as
-your name on government documentation or common-law names (names
-claimed by legitimate usage or repute). Unfortunately, we cannot
-accept anonymous contributions at this time.
-
-Git allows you to add this signoff automatically when using the `-s`
-flag to `git commit`, which uses the name and email set in your
-`user.name` and `user.email` git configs.
-
-### Private Sign off
-
-If you would like to provide your legal name privately to the Matrix.org
-Foundation (instead of in a public commit or comment), you can do so
-by emailing your legal name and a link to the pull request to
-[dco@matrix.org](mailto:dco@matrix.org?subject=Private%20sign%20off).
-It helps to include "sign off" or similar in the subject line. You will then
-be instructed further.
-
-Once private sign off is complete, doing so for future contributions will not
-be required.
-

Cargo.toml

@@ -9,6 +9,7 @@ version = "0.1.0"
 edition = "2018"
 
 [dependencies]
+clap = "2.33.0"
 indicatif = "0.16.0"
 openssl = "0.10.32"
 postgres = "0.19.0"
@@ -18,7 +19,7 @@ rayon = "1.3.0"
 string_cache = "0.8.0"
 env_logger = "0.9.0"
 log = "0.4.14"
-pyo3-log = "0.6.0"
+pyo3-log = "0.4.0"
 log-panics = "2.0.0"
 
 [dependencies.state-map]
@@ -28,16 +29,12 @@ git = "https://github.com/matrix-org/rust-matrix-state-map"
 [lib]
 crate-type = ["cdylib", "rlib"]
 
-[dependencies.clap]
-version = "3.1.14"
-features = ["cargo"]
-
 [dependencies.pyo3]
-version = "0.16.4"
-features = ["extension-module"]
+version = "0.14.1"
+features = ["extension-module","abi3-py36"]
 
 [dependencies.tikv-jemallocator]
-version = "0.5.0"
+version = "0.4.1"
 optional = true
 
 [features]

src/compressor.rs

@@ -181,7 +181,7 @@ impl<'a> Compressor<'a> {
             panic!("Can only call `create_new_tree` once");
         }
 
-        let pb = if cfg!(feature = "no-progress-bars") {
+        let pb: ProgressBar = if cfg!(feature = "no-progress-bars") {
             ProgressBar::hidden()
         } else {
             ProgressBar::new(self.original_state_map.len() as u64)

src/compressor/compressor_tests.rs

@@ -93,10 +93,7 @@ fn create_new_tree_does_nothing_if_already_compressed() {
 
     for i in 0i64..=13i64 {
         // edge from map
-        let pred_group = initial_edges.get(&i);
-
-        // Need Option<i64> not Option<&i64>
-        let prev = pred_group.copied();
+        let prev = initial_edges.get(&i).copied();
 
         // insert that edge into the initial map
         initial.insert(

src/compressor/stats_tests.rs

@@ -142,10 +142,7 @@ fn stats_correct_if_no_changes() {
 
     for i in 0i64..=13i64 {
         // edge from map
-        let pred_group = initial_edges.get(&i);
-
-        // Need Option<i64> not Option<&i64>
-        let prev = pred_group.copied();
+        let prev = initial_edges.get(&i).copied();
 
         // insert that edge into the initial map
         initial.insert(

src/database.rs

@@ -372,7 +372,7 @@ fn get_initial_data_from_db(
     // Copy the data from the database into a map
     let mut state_group_map: BTreeMap<i64, StateGroupEntry> = BTreeMap::new();
 
-    let pb = if cfg!(feature = "no-progress-bars") {
+    let pb: ProgressBar = if cfg!(feature = "no-progress-bars") {
         ProgressBar::hidden()
     } else {
         ProgressBar::new_spinner()
@@ -536,7 +536,7 @@ pub fn send_changes_to_db(
     debug!("Writing changes...");
 
     // setup the progress bar
-    let pb = if cfg!(feature = "no-progress-bars") {
+    let pb: ProgressBar = if cfg!(feature = "no-progress-bars") {
         ProgressBar::hidden()
     } else {
         ProgressBar::new(old_map.len() as u64)

src/lib.rs

@@ -23,7 +23,7 @@
 use log::{info, warn, LevelFilter};
 use pyo3::{exceptions, prelude::*};
 
-use clap::{crate_authors, crate_description, crate_name, crate_version, Arg, Command};
+use clap::{crate_authors, crate_description, crate_name, crate_version, value_t, App, Arg};
 use indicatif::{ProgressBar, ProgressStyle};
 use rayon::prelude::*;
 use state_map::StateMap;
@@ -117,13 +117,13 @@ pub struct Config {
 impl Config {
     /// Build up config from command line arguments
     pub fn parse_arguments() -> Config {
-        let matches = Command::new(crate_name!())
+        let matches = App::new(crate_name!())
         .version(crate_version!())
         .author(crate_authors!("\n"))
         .about(crate_description!())
         .arg(
-            Arg::new("postgres-url")
-                .short('p')
+            Arg::with_name("postgres-url")
+                .short("p")
                 .value_name("POSTGRES_LOCATION")
                 .help("The configruation for connecting to the postgres database.")
                 .long_help(concat!(
@@ -136,8 +136,8 @@ impl Config {
                 .takes_value(true)
                 .required(true),
         ).arg(
-            Arg::new("room_id")
-                .short('r')
+            Arg::with_name("room_id")
+                .short("r")
                 .value_name("ROOM_ID")
                 .help("The room to process")
                 .long_help(concat!(
@@ -147,23 +147,23 @@ impl Config {
                 .takes_value(true)
                 .required(true),
         ).arg(
-            Arg::new("min_state_group")
-                .short('b')
+            Arg::with_name("min_state_group")
+                .short("b")
                 .value_name("MIN_STATE_GROUP")
                 .help("The state group to start processing from (non inclusive)")
                 .takes_value(true)
                 .required(false),
         ).arg(
-            Arg::new("min_saved_rows")
-                .short('m')
+            Arg::with_name("min_saved_rows")
+                .short("m")
                 .value_name("COUNT")
                 .help("Abort if fewer than COUNT rows would be saved")
                 .long_help("If the compressor cannot save this many rows from the database then it will stop early")
                 .takes_value(true)
                 .required(false),
         ).arg(
-            Arg::new("groups_to_compress")
-                .short('n')
+            Arg::with_name("groups_to_compress")
+                .short("n")
                 .value_name("GROUPS_TO_COMPRESS")
                 .help("How many groups to load into memory to compress")
                 .long_help(concat!(
@@ -172,14 +172,14 @@ impl Config {
                 .takes_value(true)
                 .required(false),
         ).arg(
-            Arg::new("output_file")
-                .short('o')
+            Arg::with_name("output_file")
+                .short("o")
                 .value_name("FILE")
                 .help("File to output the changes to in SQL")
                 .takes_value(true),
         ).arg(
-            Arg::new("max_state_group")
-                .short('s')
+            Arg::with_name("max_state_group")
+                .short("s")
                 .value_name("MAX_STATE_GROUP")
                 .help("The maximum state group to process up to")
                 .long_help(concat!(
@@ -188,8 +188,8 @@ impl Config {
                 .takes_value(true)
                 .required(false),
         ).arg(
-            Arg::new("level_sizes")
-                .short('l')
+            Arg::with_name("level_sizes")
+                .short("l")
                 .value_name("LEVELS")
                 .help("Sizes of each new level in the compression algorithm, as a comma separated list.")
                 .long_help(concat!(
@@ -205,30 +205,30 @@ impl Config {
                 .default_value("100,50,25")
                 .takes_value(true),
         ).arg(
-            Arg::new("transactions")
-                .short('t')
+            Arg::with_name("transactions")
+                .short("t")
                 .help("Whether to wrap each state group change in a transaction")
                 .long_help(concat!("If this flag is set then then each change to a particular",
                     " state group is wrapped in a transaction. This should be done if you wish to",
                     " apply the changes while synapse is still running."))
                 .requires("output_file"),
         ).arg(
-            Arg::new("graphs")
-                .short('g')
+            Arg::with_name("graphs")
+                .short("g")
                 .help("Output before and after graphs")
                 .long_help(concat!("If this flag is set then output the node and edge information for",
                     " the state_group directed graph built up from the predecessor state_group links.",
                     " These can be looked at in something like Gephi (https://gephi.org)")),
         ).arg(
-            Arg::new("commit_changes")
-                .short('c')
+            Arg::with_name("commit_changes")
+                .short("c")
                 .help("Commit changes to the database")
                 .long_help(concat!("If this flag is set then the changes the compressor makes will",
                     " be committed to the database. This should be safe to use while synapse is running",
                     " as it assumes by default that the transactions flag is set")),
         ).arg(
-            Arg::new("no_verify")
-                .short('N')
+            Arg::with_name("no_verify")
+                .short("N")
                 .help("Do not double-check that the compression was performed correctly")
                 .long_help(concat!("If this flag is set then the verification of the compressed",
                     " state groups, which compares them to the original groups, is skipped. This",
@@ -263,8 +263,7 @@ impl Config {
             .value_of("max_state_group")
             .map(|s| s.parse().expect("max_state_group must be an integer"));
 
-        let level_sizes = matches
-            .value_of_t::<LevelSizes>("level_sizes")
+        let level_sizes = value_t!(matches, "level_sizes", LevelSizes)
             .unwrap_or_else(|e| panic!("Unable to parse level_sizes: {}", e));
 
         let transactions = matches.is_present("transactions");
@@ -508,7 +507,7 @@ fn output_sql(
 
     info!("Writing changes...");
 
-    let pb = if cfg!(feature = "no-progress-bars") {
+    let pb: ProgressBar = if cfg!(feature = "no-progress-bars") {
         ProgressBar::hidden()
     } else {
         ProgressBar::new(old_map.len() as u64)
@@ -622,7 +621,7 @@ fn check_that_maps_match(
 ) {
     info!("Checking that state maps match...");
 
-    let pb = if cfg!(feature = "no-progress-bars") {
+    let pb: ProgressBar = if cfg!(feature = "no-progress-bars") {
         ProgressBar::hidden()
     } else {
         ProgressBar::new(old_map.len() as u64)

synapse_auto_compressor/Cargo.toml

@@ -1,11 +1,11 @@
 [package]
 name = "synapse_auto_compressor"
 authors = ["William Ashton"]
-version = "0.1.3"
+version = "0.1.2"
 edition = "2018"
 
 [package.metadata.maturin]
-requires-python = ">=3.7"
+requires-python = ">=3.6"
 project-url = {Source = "https://github.com/matrix-org/rust-synapse-compress-state"}
 classifier = [
     "Development Status :: 4 - Beta",
@@ -13,10 +13,11 @@ classifier = [
 ]
 
 [dependencies]
+clap = "2.33.0"
 openssl = "0.10.32"
 postgres = "0.19.0"
 postgres-openssl = "0.5.0"
-tikv-jemallocator = "0.5.0"
+tikv-jemallocator = "0.4.1"
 rand = "0.8.0"
 serial_test = "0.5.1"
 synapse_compress_state = { path = "../", features = ["no-progress-bars"] }
@@ -24,16 +25,12 @@ env_logger = "0.9.0"
 log = "0.4.14"
 log-panics = "2.0.0"
 anyhow = "1.0.42"
-pyo3-log = "0.6.0"
+pyo3-log = "0.4.0"
 
 # Needed for pyo3 support
 [lib]
 crate-type = ["cdylib", "rlib"]
 
-[dependencies.clap]
-version = "3.1.14"
-features = ["cargo"]
-
 [dependencies.pyo3]
-version = "0.16.4"
-features = ["extension-module"]
+version = "0.14.1"
+features = ["extension-module","abi3-py36"]

synapse_auto_compressor/src/main.rs

@@ -19,7 +19,7 @@
 #[global_allocator]
 static GLOBAL: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
 
-use clap::{crate_authors, crate_description, crate_name, crate_version, Arg, Command};
+use clap::{crate_authors, crate_description, crate_name, crate_version, value_t, App, Arg};
 use log::LevelFilter;
 use std::env;
 use synapse_auto_compressor::{manager, state_saving, LevelInfo};
@@ -50,13 +50,13 @@ fn main() {
     log::info!("synapse_auto_compressor started");
 
     // parse the command line arguments using the clap crate
-    let arguments = Command::new(crate_name!())
+    let arguments = App::new(crate_name!())
         .version(crate_version!())
         .author(crate_authors!("\n"))
         .about(crate_description!())
         .arg(
-            Arg::new("postgres-url")
-                .short('p')
+            Arg::with_name("postgres-url")
+                .short("p")
                 .value_name("POSTGRES_LOCATION")
                 .help("The configruation for connecting to the postgres database.")
                 .long_help(concat!(
@@ -69,8 +69,8 @@ fn main() {
                 .takes_value(true)
                 .required(true),
         ).arg(
-            Arg::new("chunk_size")
-                .short('c')
+            Arg::with_name("chunk_size")
+                .short("c")
                 .value_name("COUNT")
                 .help("The maximum number of state groups to load into memroy at once")
                 .long_help(concat!(
@@ -85,8 +85,8 @@ fn main() {
                 .takes_value(true)
                 .required(true),
         ).arg(
-            Arg::new("default_levels")
-                .short('l')
+            Arg::with_name("default_levels")
+                .short("l")
                 .value_name("LEVELS")
                 .help("Sizes of each new level in the compression algorithm, as a comma separated list.")
                 .long_help(concat!(
@@ -103,8 +103,8 @@ fn main() {
                 .takes_value(true)
                 .required(false),
         ).arg(
-            Arg::new("number_of_chunks")
-                .short('n')
+            Arg::with_name("number_of_chunks")
+                .short("n")
                 .value_name("CHUNKS_TO_COMPRESS")
                 .help("The number of chunks to compress")
                 .long_help(concat!(
@@ -127,8 +127,7 @@ fn main() {
         .expect("A chunk size is required");
 
     // The default structure to use when compressing
-    let default_levels = arguments
-        .value_of_t::<LevelInfo>("default_levels")
+    let default_levels = value_t!(arguments, "default_levels", LevelInfo)
         .unwrap_or_else(|e| panic!("Unable to parse default levels: {}", e));
 
     // The number of rooms to compress with this tool