feat: add basic vessel

.drone.yml

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+kind: template
+load: cuddle-rust-lib-plan.yaml

.gitignore

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+target/
+.cuddle/

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "anyhow"
+version = "1.0.71"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c7d0618f0e0b7e8ff11427422b64564d5fb0be1940354bfe2e0529b18a9d9b8"
+
+[[package]]
+name = "vessel"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+]

Cargo.toml

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+[workspace]
+members = ["crates/*"]
+resolver = "2"
+
+[workspace.dependencies]
+vessel = { path = "crates/vessel" }
+
+anyhow = { version = "1.0.71" }

crates/vessel/Cargo.toml

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+[package]
+name = "vessel"
+version = "0.1.0"
+edition = "2024"
+description = "A context propogation struct. Carries cancellation, and other useful items transparently through an application"
+license = "MIT"
+
+[dependencies]
+anyhow.workspace = true

crates/vessel/src/lib.rs

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+use std::collections::BTreeMap;
+
+#[derive(Default, Clone, Debug)]
+pub struct Vessel {
+    value_bag: BTreeMap<String, String>,
+}
+
+impl Vessel {
+    pub fn new() -> Self {
+        Self {
+            value_bag: BTreeMap::default(),
+        }
+    }
+
+    pub fn with_value(&self, key: &str, value: &str) -> Self {
+        let mut value_bag = self.value_bag.clone();
+
+        value_bag.insert(key.into(), value.into());
+
+        Self { value_bag }
+    }
+
+    pub fn get_value(&self, key: &str) -> Option<&String> {
+        self.value_bag.get(key)
+    }
+
+    pub fn get_values(&self) -> &BTreeMap<String, String> {
+        &self.value_bag
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use std::collections::BTreeMap;
+
+    use crate::Vessel;
+
+    #[test]
+    fn can_add_value() {
+        let vessel = Vessel::default();
+
+        let new_vessel = vessel.with_value("some-key", "some-value");
+
+        assert_eq!(
+            &BTreeMap::from([("some-key".into(), "some-value".into())]),
+            new_vessel.get_values()
+        )
+    }
+    #[test]
+    fn is_immutable() {
+        let vessel = Vessel::default();
+
+        let new_vessel = vessel.with_value("some-key", "some-value");
+
+        assert_ne!(vessel.get_values(), new_vessel.get_values())
+    }
+
+    #[test]
+    fn get_value() {
+        let vessel = Vessel::default();
+
+        let new_vessel = vessel.with_value("some-key", "some-value");
+
+        assert_eq!(
+            Some(&"some-value".to_string()),
+            new_vessel.get_value("some-key")
+        )
+    }
+    #[test]
+    fn value_not_found() {
+        let vessel = Vessel::default();
+
+        let new_vessel = vessel.with_value("some-key", "some-value");
+
+        assert_eq!(None, new_vessel.get_value("bogus"))
+    }
+}

cuddle.yaml

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+# yaml-language-server: $schema=https://git.front.kjuulh.io/kjuulh/cuddle/raw/branch/main/schemas/base.json
+
+base: "git@git.front.kjuulh.io:kjuulh/cuddle-rust-lib-plan.git"
+
+vars:
+  service: "vessel"
+  registry: kasperhermansen
+
+please:
+  project:
+    owner: kjuulh
+    repository: "vessel"
+    branch: main
+  settings:
+    api_url: "https://git.front.kjuulh.io"
+  actions:
+    rust: