Removed all threading and switched everything to async. >2x speedup 🚀

Cargo.toml

@@ -6,18 +6,20 @@ edition = "2021"
 [dependencies]
 clap = { version = "4.5.7", features = ["derive"] }
 indicatif = { version = "0.17.8", optional = true }
-tokio = {version = "1.38.0", features = ["rt", "rt-multi-thread", "macros"]}
+tokio = {version = "1.38.0", features = ["macros"]}
-ureq = { version = "2.9.7", features = ["tls"] }
-rayon = "1.10.0"
 xitca-web = { version = "0.5.0", optional = true, features = ["logger"] }
 liquid = { version = "0.26.6", optional = true }
 bollard = "0.16.1"
 once_cell = "1.19.0"
-http-auth = { version = "0.1.9", features = [] }
+http-auth = { version = "0.1.9", default-features = false, features = [] }
 termsize = { version = "0.1.8", optional = true }
 regex = "1.10.5"
 chrono = { version = "0.4.38", default-features = false, features = ["std", "alloc", "clock"], optional = true }
 json = "0.12.4"
+reqwest = "0.12.7"
+futures = "0.3.30"
+reqwest-retry = "0.6.1"
+reqwest-middleware = "0.3.3"
 
 [features]
 default = ["server", "cli"]

src/check.rs

@@ -1,16 +1,12 @@
-use std::{
+use std::collections::{HashMap, HashSet};
-    collections::{HashMap, HashSet},
-    sync::Mutex,
-};
 
 use json::JsonValue;
-use rayon::iter::{IntoParallelRefIterator, ParallelIterator};
 
 use crate::{
     docker::get_images_from_docker_daemon,
     image::Image,
     registry::{check_auth, get_latest_digests, get_token},
-    utils::unsplit_image,
+    utils::{new_reqwest_client, unsplit_image},
 };
 
 #[cfg(feature = "cli")]
@@ -37,49 +33,48 @@ pub async fn get_all_updates(
     socket: Option<String>,
     config: &JsonValue,
 ) -> Vec<(String, Option<bool>)> {
-    let image_map_mutex: Mutex<HashMap<String, &Option<String>>> = Mutex::new(HashMap::new());
     let local_images = get_images_from_docker_daemon(socket).await;
-    local_images.par_iter().for_each(|image| {
+    let mut image_map: HashMap<String, Option<String>> = HashMap::with_capacity(local_images.len());
+    for image in &local_images {
         let img = unsplit_image(&image.registry, &image.repository, &image.tag);
-        image_map_mutex.lock().unwrap().insert(img, &image.digest);
+        image_map.insert(img, image.digest.clone());
-    });
+    };
-    let image_map = image_map_mutex.lock().unwrap().clone();
     let mut registries: Vec<&String> = local_images
-        .par_iter()
+        .iter()
         .map(|image| &image.registry)
         .collect();
     registries.unique();
-    let mut remote_images: Vec<Image> = Vec::new();
+    let mut remote_images: Vec<Image> = Vec::with_capacity(local_images.len());
+    let client = new_reqwest_client();
     for registry in registries {
         let images: Vec<&Image> = local_images
-            .par_iter()
+            .iter()
             .filter(|image| &image.registry == registry)
             .collect();
         let credentials = config["authentication"][registry]
             .clone()
             .take_string()
             .or(None);
-        let mut latest_images = match check_auth(registry, config) {
+        let mut latest_images = match check_auth(registry, config, &client).await {
             Some(auth_url) => {
-                let token = get_token(images.clone(), &auth_url, &credentials);
+                let token = get_token(images.clone(), &auth_url, &credentials, &client).await;
-                get_latest_digests(images, Some(&token), config)
+                get_latest_digests(images, Some(&token), config, &client).await
             }
-            None => get_latest_digests(images, None, config),
+            None => get_latest_digests(images, None, config, &client).await,
         };
         remote_images.append(&mut latest_images);
     }
-    let result_mutex: Mutex<Vec<(String, Option<bool>)>> = Mutex::new(Vec::new());
+    let mut result: Vec<(String, Option<bool>)> = Vec::new();
-    remote_images.par_iter().for_each(|image| {
+    remote_images.iter().for_each(|image| {
         let img = unsplit_image(&image.registry, &image.repository, &image.tag);
         match &image.digest {
             Some(d) => {
                 let r = d != image_map.get(&img).unwrap().as_ref().unwrap();
-                result_mutex.lock().unwrap().push((img, Some(r)))
+                result.push((img, Some(r)))
             }
-            None => result_mutex.lock().unwrap().push((img, None)),
+            None => result.push((img, None)),
         }
     });
-    let result = result_mutex.lock().unwrap().clone();
     result
 }
 
@@ -90,13 +85,14 @@ pub async fn get_update(image: &str, socket: Option<String>, config: &JsonValue)
         .clone()
         .take_string()
         .or(None);
-    let token = match check_auth(&local_image.registry, config) {
+    let client = new_reqwest_client();
-        Some(auth_url) => get_token(vec![&local_image], &auth_url, &credentials),
+    let token = match check_auth(&local_image.registry, config, &client).await {
+        Some(auth_url) => get_token(vec![&local_image], &auth_url, &credentials, &client).await,
         None => String::new(),
     };
     let remote_image = match token.as_str() {
-        "" => get_latest_digest(&local_image, None, config),
+        "" => get_latest_digest(&local_image, None, config, &client).await,
-        _ => get_latest_digest(&local_image, Some(&token), config),
+        _ => get_latest_digest(&local_image, Some(&token), config, &client).await,
     };
     match &remote_image.digest {
         Some(d) => Some(d != &local_image.digest.unwrap()),

src/docker.rs

@@ -2,6 +2,7 @@ use bollard::{secret::ImageSummary, ClientVersion, Docker};
 
 #[cfg(feature = "cli")]
 use bollard::secret::ImageInspect;
+use futures::future::join_all;
 
 use crate::{error, image::Image, utils::split_image};
 
@@ -32,27 +33,16 @@ pub async fn get_images_from_docker_daemon(socket: Option<String>) -> Vec<Image>
             error!("Failed to retrieve list of images available!\n{}", e)
         }
     };
-    let mut result: Vec<Image> = Vec::new();
+    let mut handles = Vec::new();
     for image in images {
-        if !image.repo_tags.is_empty() && !image.repo_digests.is_empty() {
+        handles.push(Image::from(image))
-            for t in &image.repo_tags {
+    };
-                let (registry, repository, tag) = split_image(t);
+    join_all(handles).await.iter().filter(|img| {
-                result.push(Image {
+        match img {
-                    registry,
+            Some(_) => true,
-                    repository,
+            None => false
-                    tag,
-                    digest: Some(
-                        image.repo_digests[0]
-                            .clone()
-                            .split('@')
-                            .collect::<Vec<&str>>()[1]
-                            .to_string(),
-                    ),
-                });
         }
-        }
+    }).map(|img| img.clone().unwrap()).collect()
-    }
-    result
 }
 
 #[cfg(feature = "cli")]

src/formatting.rs

@@ -8,7 +8,7 @@ use crate::utils::{sort_update_vec, to_json};
 pub fn print_updates(updates: &[(String, Option<bool>)], icons: &bool) {
     let sorted_updates = sort_update_vec(updates);
     let term_width: usize = termsize::get()
-        .unwrap_or(termsize::Size { rows: 24, cols: 80 })
+        .unwrap_or_else(|| termsize::Size { rows: 24, cols: 80 })
         .cols as usize;
     for update in sorted_updates {
         let description = match update.1 {

src/image.rs

@@ -1,3 +1,7 @@
+use bollard::secret::ImageSummary;
+
+use crate::utils::split_image;
+
 #[derive(Clone, Debug)]
 pub struct Image {
     pub registry: String,
@@ -5,3 +9,27 @@ pub struct Image {
     pub tag: String,
     pub digest: Option<String>,
 }
+
+impl Image {
+    pub async fn from(image: ImageSummary) -> Option<Self> {
+        if !image.repo_tags.is_empty() && !image.repo_digests.is_empty() {
+            for t in &image.repo_tags {
+                let (registry, repository, tag) = split_image(t);
+                let image = Image {
+                    registry,
+                    repository,
+                    tag,
+                    digest: Some(
+                        image.repo_digests[0]
+                            .clone()
+                            .split('@')
+                            .collect::<Vec<&str>>()[1]
+                            .to_string(),
+                    ),
+                };
+                return Some(image)
+            }
+        }
+        None
+    }
+}

src/registry.rs

@@ -1,160 +1,136 @@
-use std::sync::Mutex;
+use futures::future::join_all;
-
 use json::JsonValue;
-use rayon::iter::{IntoParallelRefIterator, ParallelIterator};
-use ureq::{Error, ErrorKind};
 
 use http_auth::parse_challenges;
+use reqwest_middleware::ClientWithMiddleware;
 
 use crate::{error, image::Image, warn};
 
-pub fn check_auth(registry: &str, config: &JsonValue) -> Option<String> {
+pub async fn check_auth(registry: &str, config: &JsonValue, client: &ClientWithMiddleware) -> Option<String> {
     let protocol = if config["insecure_registries"].contains(registry) {
         "http"
     } else {
         "https"
     };
-    let response = ureq::get(&format!("{}://{}/v2/", protocol, registry)).call();
+    let response = client.get(&format!("{}://{}/v2/", protocol, registry)).send().await;
     match response {
-        Ok(_) => None,
+        Ok(r) => {
-        Err(Error::Status(401, response)) => match response.header("www-authenticate") {
+            let status = r.status().as_u16();
-            Some(challenge) => Some(parse_www_authenticate(challenge)),
+            if status == 401 {
+                match r.headers().get("www-authenticate") {
+                    Some(challenge) => Some(parse_www_authenticate(challenge.to_str().unwrap())),
                     None => error!(
                         "Unauthorized to access registry {} and no way to authenticate was provided",
                         registry
                     ),
+                }
+            } else if status == 200 {
+                None
+            } else {
+                warn!("Received unexpected status code {}\nResponse: {}", status, r.text().await.unwrap());
+                None
+            }
         },
-        Err(Error::Transport(error)) => {
+        Err(e) => {
-            match error.kind() {
+            if e.is_connect() {
-                ErrorKind::Dns => {
+                warn!("Connection to registry {} failed.", &registry);
-                    warn!("Failed to lookup the IP of the registry, retrying.");
+                None
-                    return check_auth(registry, config);
+            } else {
-                } // If something goes really wrong, this can get stuck in a loop
+                error!("Unexpected error: {}", e.to_string())
-                ErrorKind::ConnectionFailed => {
-                    warn!("Connection probably timed out, retrying.");
-                    return check_auth(registry, config);
-                } // Same here
-                _ => error!("{}", error),
             }
         }
-        Err(e) => error!("{}", e),
     }
 }
 
-pub fn get_latest_digest(image: &Image, token: Option<&String>, config: &JsonValue) -> Image {
+pub async fn get_latest_digest(image: &Image, token: Option<&String>, config: &JsonValue, client: &ClientWithMiddleware) -> Image {
     let protocol =
         if config["insecure_registries"].contains(json::JsonValue::from(image.registry.clone())) {
             "http"
         } else {
             "https"
         };
-    let mut request = ureq::head(&format!(
+    let mut request = client.head(&format!(
         "{}://{}/v2/{}/manifests/{}",
         protocol, &image.registry, &image.repository, &image.tag
     ));
     if let Some(t) = token {
-        request = request.set("Authorization", &format!("Bearer {}", t));
+        request = request.header("Authorization", &format!("Bearer {}", t));
     }
     let raw_response = match request
-        .set("Accept", "application/vnd.docker.distribution.manifest.list.v2+json, application/vnd.docker.distribution.manifest.v2+json, application/vnd.oci.image.index.v1+json")
+        .header("Accept", "application/vnd.docker.distribution.manifest.list.v2+json, application/vnd.docker.distribution.manifest.v2+json, application/vnd.oci.image.index.v1+json")
-        .call()
+        .send().await
     {
-        Ok(response) => response,
+        Ok(response) => {
-        Err(Error::Status(401, response)) => {
+            let status = response.status();
+            if status == 401 {
                 if token.is_some() {
                     warn!("Failed to authenticate to registry {} with given token!\n{}", &image.registry, token.unwrap());
+                } else {
+                    warn!("Registry requires authentication");
+                }
+                return Image { digest: None, ..image.clone() }
+            } else if status == 404 {
+                warn!("Image {:?} not found", &image);
                 return Image { digest: None, ..image.clone() }
             } else {
-                return get_latest_digest(
+                response
-                    image,
-                    Some(&get_token(
-                        vec![image],
-                        &parse_www_authenticate(response.header("www-authenticate").unwrap()),
-                        &None // I think?
-                    )),
-                    config
-                );
-            }
-        }
-        Err(Error::Status(_, _)) => {
-            return Image {
-                digest: None,
-                ..image.clone()
             }
         },
-        Err(Error::Transport(error)) => {
+        Err(e) => {
-            match error.kind() {
+            if e.is_connect() {
-                ErrorKind::Dns => {
+                warn!("Connection to registry failed.");
-                    warn!("Failed to lookup the IP of the registry, retrying.");
+                return Image { digest: None, ..image.clone() }
-                    return get_latest_digest(image, token, config)
+            } else {
-                }, // If something goes really wrong, this can get stuck in a loop
+                error!("Unexpected error: {}", e.to_string())
-                ErrorKind::ConnectionFailed => {
-                    warn!("Connection probably timed out, retrying.");
-                    return get_latest_digest(image, token, config)
-                }, // Same here
-                _ => error!("Failed to retrieve image digest\n{}!", error)
             }
         },
     };
-    match raw_response.header("docker-content-digest") {
+    match raw_response.headers().get("docker-content-digest") {
         Some(digest) => Image {
-            digest: Some(digest.to_string()),
+            digest: Some(digest.to_str().unwrap().to_string()),
             ..image.clone()
         },
-        None => error!("Server returned invalid response! No docker-content-digest!"),
+        None => error!("Server returned invalid response! No docker-content-digest!\n{:#?}", raw_response),
     }
 }
 
-pub fn get_latest_digests(
+pub async fn get_latest_digests(
     images: Vec<&Image>,
     token: Option<&String>,
     config: &JsonValue,
+    client: &ClientWithMiddleware
 ) -> Vec<Image> {
-    let result: Mutex<Vec<Image>> = Mutex::new(Vec::new());
+    let mut handles = Vec::new();
-    images.par_iter().for_each(|&image| {
+    for image in images {
-        let digest = get_latest_digest(image, token, config).digest;
+        handles.push(get_latest_digest(image, token, config, client))
-        result.lock().unwrap().push(Image {
+    }
-            digest,
+    join_all(handles).await
-            ..image.clone()
-        });
-    });
-    let r = result.lock().unwrap().clone();
-    r
 }
 
-pub fn get_token(images: Vec<&Image>, auth_url: &str, credentials: &Option<String>) -> String {
+pub async fn get_token(images: Vec<&Image>, auth_url: &str, credentials: &Option<String>, client: &ClientWithMiddleware) -> String {
     let mut final_url = auth_url.to_owned();
     for image in &images {
         final_url = format!("{}&scope=repository:{}:pull", final_url, image.repository);
     }
     let mut base_request =
-        ureq::get(&final_url).set("Accept", "application/vnd.oci.image.index.v1+json"); // Seems to be unnecesarry. Will probably remove in the future
+        client.get(&final_url).header("Accept", "application/vnd.oci.image.index.v1+json"); // Seems to be unnecessary. Will probably remove in the future
     base_request = match credentials {
-        Some(creds) => base_request.set("Authorization", &format!("Basic {}", creds)),
+        Some(creds) => base_request.header("Authorization", &format!("Basic {}", creds)),
         None => base_request,
     };
-    let raw_response = match base_request.call() {
+    let raw_response = match base_request.send().await {
-        Ok(response) => match response.into_string() {
+        Ok(response) => match response.text().await {
             Ok(res) => res,
             Err(e) => {
                 error!("Failed to parse response into string!\n{}", e)
             }
         },
-        Err(Error::Transport(error)) => {
-            match error.kind() {
-                ErrorKind::Dns => {
-                    warn!("Failed to lookup the IP of the registry, retrying.");
-                    return get_token(images, auth_url, credentials);
-                } // If something goes really wrong, this can get stuck in a loop
-                ErrorKind::ConnectionFailed => {
-                    warn!("Connection probably timed out, retrying.");
-                    return get_token(images, auth_url, credentials);
-                } // Same here
-                _ => error!("Token request failed\n{}!", error),
-            }
-        }
         Err(e) => {
-            error!("Token request failed!\n{}", e)
+            if e.is_connect() {
+                error!("Connection to registry failed.");
+            } else {
+                error!("Token request failed!\n{}", e.to_string())
+            }
         }
     };
     let parsed_token_response: JsonValue = match json::parse(&raw_response) {

src/utils.rs

@@ -3,6 +3,8 @@ use std::path::PathBuf;
 use json::{object, JsonValue};
 use once_cell::sync::Lazy;
 use regex::Regex;
+use reqwest_middleware::{ClientBuilder, ClientWithMiddleware};
+use reqwest_retry::{RetryTransientMiddleware, policies::ExponentialBackoff};
 
 /// This macro is an alternative to panic. It prints the message you give it and exits the process with code 1, without printing a stack trace. Useful for when the program has to exit due to a user error or something unexpected which is unrelated to the program (e.g. a failed web request)
 #[macro_export]
@@ -21,14 +23,15 @@ macro_rules! warn {
     })
 }
 
-/// Takes an image and splits it into registry, repository and tag. For example ghcr.io/sergi0g/cup:latest becomes ['ghcr.io', 'sergi0g/cup', 'latest'].
+static RE: Lazy<Regex> = Lazy::new(|| {
-pub fn split_image(image: &str) -> (String, String, String) {
-    static RE: Lazy<Regex> = Lazy::new(|| {
     Regex::new(
         r#"^(?P<name>(?:(?P<registry>(?:(?:localhost|[\w-]+(?:\.[\w-]+)+)(?::\d+)?)|[\w]+:\d+)/)?(?P<repository>[a-z0-9_.-]+(?:/[a-z0-9_.-]+)*))(?::(?P<tag>[\w][\w.-]{0,127}))?$"#, // From https://regex101.com/r/nmSDPA/1
     )
     .unwrap()
-    });
+});
+
+/// Takes an image and splits it into registry, repository and tag. For example ghcr.io/sergi0g/cup:latest becomes ['ghcr.io', 'sergi0g/cup', 'latest'].
+pub fn split_image(image: &str) -> (String, String, String) {
     match RE.captures(image) {
         Some(c) => {
             let registry = match c.name("registry") {
@@ -124,21 +127,24 @@ pub fn to_json(updates: &[(String, Option<bool>)]) -> JsonValue {
     let up_to_date = updates
         .iter()
         .filter(|&(_, value)| *value == Some(false))
-        .collect::<Vec<&(String, Option<bool>)>>()
+        .count();
-        .len();
     let update_available = updates
         .iter()
         .filter(|&(_, value)| *value == Some(true))
-        .collect::<Vec<&(String, Option<bool>)>>()
+        .count();
-        .len();
     let unknown = updates
         .iter()
         .filter(|&(_, value)| value.is_none())
-        .collect::<Vec<&(String, Option<bool>)>>()
+        .count();
-        .len();
     let _ = json_data["metrics"].insert("monitored_images", updates.len());
     let _ = json_data["metrics"].insert("up_to_date", up_to_date);
     let _ = json_data["metrics"].insert("update_available", update_available);
     let _ = json_data["metrics"].insert("unknown", unknown);
     json_data
 }
+
+pub fn new_reqwest_client() -> ClientWithMiddleware {
+    ClientBuilder::new(reqwest::Client::new())
+        .with(RetryTransientMiddleware::new_with_policy(ExponentialBackoff::builder().build_with_max_retries(3)))
+        .build()
+}