chore: bump project version

Co-authored-by: Valdr687 <106614142+Valdr687@users.noreply.github.com>

Cargo.lock

@@ -376,7 +376,7 @@ dependencies = [
 
 [[package]]
 name = "cup"
-version = "3.3.0"
+version = "3.4.2"
 dependencies = [
  "bollard",
  "chrono",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cup"
-version = "3.4.0"
+version = "3.4.3"
 edition = "2021"
 
 [dependencies]

NOTICE.md

@@ -0,0 +1,17 @@
+Hello,
+
+I have an important announcement to make.
+
+### The situation
+
+You may have noticed that the last few months Cup's development has stalled. I had very little time to work on it. Tomorrow, the 11th of September, 2025, I am starting my last year of school. It is very important to me to get into a good university, so I will be studying all day, with no time to work on my projects.
+
+What this means for you is that the development of Cup is paused, at least until June 2026. That means no new features and no bugfixes. If Cup works fine for you and you're comfortable with not getting any updates (this does _not_ mean Cup is suddenly insecure by the way), you can keep using it. Otherwise, there are many alternatives you can look at, which are actively maintained and may provide the features you need.
+
+### How you can help
+
+If you're a Rust developer, I would really appreciate it if you could start contributing to Cup. There are a bunch of open issues that need to be worked on. I can find some time to review PRs. You can also fork the repository and do your own thing, if you prefer.
+
+I've also left a few new features in the `v4` branch and a rewrite I started in `rewrite`, because I feel like the code is unmaintainable in its current state. I'd love it if someone could help work on that.
+
+That's all I had to say. I'm sorry if I let you down, this was a really hard decision to make. I would like to thank all of you for your help and support, it really means a lot to me. I hope I can continue working on the project once I'm done with my final exams!

README.md

@@ -7,6 +7,8 @@
 ![GitHub Issues or Pull Requests](https://img.shields.io/github/issues/sergi0g/cup)
 [![Discord](https://img.shields.io/discord/1337705080518086658)](https://discord.gg/jmh5ctzwNG)
 
+> [!IMPORTANT]
+> There have been some important changes regarding Cup's development. Read more [here](./NOTICE.md).
 
 Cup is the easiest way to check for container image updates.
 

cup.schema.json

@@ -70,7 +70,7 @@
         },
         "socket": {
             "type": "string",
-            "description": "The path to the unix socket you would like Cup to use for communication with the Docker daemon. Useful if you're trying to use Cup with Podman.",
+            "description": "The path to the unix socket you would like Cup to use for communication with the Docker daemon. Useful if you're trying to use Cup with Podman. To disable use \"none\" as value.",
             "minLength": 1
         },
         "servers": {

docs/src/content/docs/community-resources/homepage-widget.mdx

@@ -51,29 +51,24 @@ Credit: [@agrmohit](https://github.com/agrmohit)
 ```yaml
 widget:
   type: customapi
-  url: http://<SERVER_IP>:9000/api/v3/json
+  url: http://<SERVER_HOSTNAME>/api/v3/json
   refreshInterval: 10000
   method: GET
   mappings:
-    - field:
-        metrics: monitored_images
+    - field: metrics.monitored_images
       label: Monitored images
       format: number
-    - field:
-        metrics: up_to_date
+    - field: metrics.up_to_date
       label: Up to date
       format: number
-    - field:
-        metrics: updates_available
+    - field: metrics.updates_available
       label: Available updates
       format: number
-    - field:
-        metrics: unknown
+    - field: metrics.unknown
       label: Unknown
       format: number
 ```
 
 Preview:
-
 <Image src={widget2} />
-Credit: [@remussamoila](https://github.com/remussamoila)
+Credit: [@remussamoila](https://github.com/remussamoila) and [@Valdr687](https://github.com/Valdr687)

docs/src/content/docs/configuration/index.mdx

@@ -23,7 +23,7 @@ For example, if using Podman, you might do
 $ cup -s /run/user/1000/podman/podman.sock check
 ```
 
-This option is also available in the configuration file and it's best to put it there.
+This option is also available in the configuration file and it's best to put it there. If both are defined the CLI `-s` option takes precedence.
 
 <Cards.Card
   icon={<IconPlug />}
@@ -31,6 +31,8 @@ This option is also available in the configuration file and it's best to put it
   href="/docs/configuration/socket"
 />
 
+To disable Docker/Podman socket use "none" as value.
+
 ## Configuration file
 
 Cup has an option to be configured from a configuration file named `cup.json`.
@@ -131,11 +133,11 @@ services:
     ports:
       - 8000:8000
     environment:
-      - CUP_AGENT: true
-      - CUP_IGNORE_UPDATE_TYPE: major
-      - CUP_REFRESH_INTERVAL: "0 */30 * * * *"
-      - CUP_SOCKET: tcp://localhost:2375
-      - CUP_THEME: blue
+      CUP_AGENT: "true"
+      CUP_IGNORE_UPDATE_TYPE: major
+      CUP_REFRESH_INTERVAL: "0 */30 * * * *"
+      CUP_SOCKET: tcp://localhost:2375
+      CUP_THEME: blue
 ```
 
 <Callout>

docs/src/content/docs/configuration/socket.mdx

@@ -17,3 +17,12 @@ You can also specify a TCP socket if you're using a remote Docker host or a [pro
   // Other options
 }
 ```
+
+Or use the "none" value to disable any Docker/Podman query:
+
+```jsonc
+{
+  "socket": "none"
+  // Other options
+}
+```

src/config.rs

@@ -1,5 +1,6 @@
 use rustc_hash::FxHashMap;
 use serde::Deserialize;
+use serde::Deserializer;
 use std::env;
 use std::mem;
 use std::path::PathBuf;
@@ -64,6 +65,7 @@ pub struct Config {
     pub agent: bool,
     pub ignore_update_type: UpdateType,
     pub images: ImageConfig,
+    #[serde(deserialize_with = "empty_as_none")]
     pub refresh_interval: Option<String>,
     pub registries: FxHashMap<String, RegistryConfig>,
     pub servers: FxHashMap<String, String>,
@@ -151,3 +153,15 @@ impl Default for Config {
         Self::new()
     }
 }
+
+fn empty_as_none<'de, D>(deserializer: D) -> Result<Option<String>, D::Error>
+where
+    D: Deserializer<'de>,
+{
+    let s = String::deserialize(deserializer)?;
+    if s.is_empty() {
+        Ok(None)
+    } else {
+        Ok(Some(s))
+    }
+}

src/docker.rs

@@ -41,6 +41,9 @@ pub async fn get_images_from_docker_daemon(
     ctx: &Context,
     references: &Option<Vec<String>>,
 ) -> Vec<Image> {
+    if ctx.config.socket.as_deref() == Some("none") {
+        return vec![];
+    }
     let client: Docker = create_docker_client(ctx.config.socket.as_deref());
     let mut swarm_images = match client.list_services::<String>(None).await {
         Ok(services) => services
@@ -96,6 +99,10 @@ pub async fn get_images_from_docker_daemon(
 }
 
 pub async fn get_in_use_images(ctx: &Context) -> Vec<String> {
+    if ctx.config.socket.as_deref() == Some("none") {
+        return vec![];
+    }
+
     let client: Docker = create_docker_client(ctx.config.socket.as_deref());
 
     let containers = match client

src/registry.rs

@@ -58,7 +58,7 @@ pub async fn get_latest_digest(
         protocol, &image.parts.registry, &image.parts.repository, &image.parts.tag
     );
     let authorization = to_bearer_string(&token);
-    let headers = [("Accept", Some("application/vnd.docker.distribution.manifest.list.v2+json, application/vnd.docker.distribution.manifest.v2+json, application/vnd.oci.image.index.v1+json")), ("Authorization", authorization.as_deref())];
+    let headers = [("Accept", Some("application/vnd.docker.distribution.manifest.list.v2+json, application/vnd.docker.distribution.manifest.v2+json, application/vnd.oci.image.index.v1+json, application/vnd.oci.image.manifest.v1+json")), ("Authorization", authorization.as_deref())];
 
     let response = client.head(&url, &headers).await;
     let time = start.elapsed().unwrap().as_millis() as u32;