More updates

base64 0.21 to 0.22
dirs 4 to 6
http 0.2 to removed entirely: the only usage was `PathAndQuery`, which comes from actix_web`'s re-export
rand 0.8 to 0.10: `thread_rng()` -> `rng()`, `gen()` -> `random()`,
`Rng` -> `RngExt

Author: lionel-

Cargo.lock

@@ -35,7 +35,7 @@ ark = { path = "crates/ark" }
 ark_test = { path = "crates/ark_test" }
 assert_matches = "1.5.0"
 async-trait = "0.1.89"
-base64 = "0.21.7"
+base64 = "0.22.1"
 biome_line_index = { git = "https://github.com/lionel-/biome", rev = "41d799cfa4cedd25625fc3f6bd7898532873f051" }
 biome_rowan = { git = "https://github.com/lionel-/biome", rev = "41d799cfa4cedd25625fc3f6bd7898532873f051" }
 blake3 = "1.8.4"
@@ -47,7 +47,7 @@ crossbeam = { version = "0.8.4", features = ["crossbeam-channel"] }
 ctor = "0.1.26"
 dap = { branch = "main", git = "https://github.com/sztomi/dap-rs" }
 dashmap = "6.1.0"
-dirs = "4.0.0"
+dirs = "6.0.0"
 ego-tree = "0.6.3"
 embed-resource = "3.0.8"
 env_logger = "0.11.10"
@@ -59,7 +59,6 @@ harp-macros = { path = "crates/harp/harp-macros" }
 hex = "0.4.3"
 hmac = "0.13.0"
 home = "0.5.12"
-http = "0.2.12"
 insta = "1.47.2"
 itertools = "0.14.0"
 libc = "0.2.185"
@@ -79,7 +78,7 @@ once_cell = "1.21.4"
 parking_lot = "0.12.5"
 paste = "1.0.15"
 quote = "1.0.45"
-rand = "0.8.6"
+rand = "0.10"
 regex = "1.12.3"
 reqwest = { version = "0.13.2", default-features = false, features = ["blocking", "json", "rustls"] }
 reqwest-middleware = "0.5.1"

Cargo.toml

@@ -6,7 +6,7 @@
  */
 
 use assert_matches::assert_matches;
-use rand::Rng;
+use rand::RngExt;
 use serde_json::Value;
 
 use crate::connection_file::ConnectionFile;
@@ -63,7 +63,7 @@ impl Default for DummyConnection {
 impl DummyConnection {
     pub fn new() -> Self {
         // Create a random HMAC key for signing messages.
-        let key_bytes = rand::thread_rng().gen::<[u8; 16]>();
+        let key_bytes = rand::rng().random::<[u8; 16]>();
         let key = hex::encode(key_bytes);
 
         // Create a new kernel session from the key
@@ -142,7 +142,7 @@ impl DummyFrontend {
 
         // Create a random socket identity for the shell and stdin sockets. Per
         // the Jupyter specification, these must share a ZeroMQ identity.
-        let shell_id = rand::thread_rng().gen::<[u8; 16]>();
+        let shell_id = rand::rng().random::<[u8; 16]>();
 
         let control_socket = Socket::new(
             connection.session.clone(),

crates/amalthea/src/fixtures/dummy_frontend.rs

@@ -36,7 +36,6 @@ ego-tree.workspace = true
 futures.workspace = true
 harp.workspace = true
 home.workspace = true
-http.workspace = true
 itertools.workspace = true
 libc.workspace = true
 libr.workspace = true

crates/ark/Cargo.toml

@@ -9,14 +9,14 @@ use std::net::TcpListener;
 
 use actix_web::get;
 use actix_web::http::header::ContentType;
+use actix_web::http::uri::PathAndQuery;
 use actix_web::web;
 use actix_web::App;
 use actix_web::HttpRequest;
 use actix_web::HttpResponse;
 use actix_web::HttpServer;
 use harp::exec::RFunction;
 use harp::exec::RFunctionExt;
-use http::uri::PathAndQuery;
 use mime_guess::from_path;
 use reqwest::Client;
 use reqwest_middleware::ClientBuilder;

crates/ark/src/help_proxy.rs

@@ -39,8 +39,7 @@ use amalthea::wire::update_display_data::TransientValue;
 use amalthea::wire::update_display_data::UpdateDisplayData;
 use anyhow::anyhow;
 use anyhow::Context;
-use base64::engine::general_purpose;
-use base64::Engine;
+use base64::prelude::*;
 use crossbeam::channel::Select;
 use crossbeam::channel::Sender;
 use harp::exec::RFunction;
@@ -1023,7 +1022,7 @@ impl DeviceContext {
         reader.read_to_end(&mut buffer)?;
 
         // what an odd interface
-        let data = general_purpose::STANDARD_NO_PAD.encode(buffer);
+        let data = BASE64_STANDARD_NO_PAD.encode(buffer);
 
         Ok(data)
     }

crates/ark/src/plots/graphics_device.rs

@@ -6,7 +6,7 @@ use amalthea::wire::execute_request::JupyterPositronRange;
 use ark_test::comm::RECV_TIMEOUT;
 use ark_test::DummyArkFrontend;
 use ark_test::SourceFile;
-use base64::Engine;
+use base64::prelude::*;
 
 /// Default DPI for the current OS, matching the constant in graphics_device.rs.
 fn default_dpi() -> f64 {
@@ -21,9 +21,9 @@ fn default_dpi() -> f64 {
 fn png_dimensions(base64_data: &str) -> (u32, u32) {
     // The base64 data may contain newlines or use non-padded encoding
     let cleaned: String = base64_data.chars().filter(|c| !c.is_whitespace()).collect();
-    let bytes = base64::engine::general_purpose::STANDARD
+    let bytes = BASE64_STANDARD
         .decode(&cleaned)
-        .or_else(|_| base64::engine::general_purpose::STANDARD_NO_PAD.decode(&cleaned))
+        .or_else(|_| BASE64_STANDARD_NO_PAD.decode(&cleaned))
         .expect("Failed to decode base64 PNG data");
     // Validate PNG signature and minimum size for IHDR
     let png_signature: [u8; 8] = [137, 80, 78, 71, 13, 10, 26, 10];