new: Support a scoop backend.

.gitignore

@@ -12,3 +12,7 @@ target/
 # moon
 .moon/cache
 .moon/docker
+
+# AI / agents
+.claude/settings.local.json
+.claude/worktrees

.moon/workspace.yml

@@ -4,6 +4,7 @@ projects:
   root: .
   # Backends
   asdf-backend: backends/asdf
+  scoop-backend: backends/scoop
   # Extensions
   download-extension: extensions/download
   migrate-nx-extension: extensions/migrate-nx

backends/scoop/CHANGELOG.md

@@ -0,0 +1,5 @@
+# Changelog
+
+## Unreleased
+
+- Initial release.

backends/scoop/Cargo.toml

@@ -0,0 +1,31 @@
+[package]
+name = "scoop_backend"
+version = "0.1.0"
+edition = "2024"
+
+[package.metadata.release]
+pre-release-replacements = [
+    { file = "./CHANGELOG.md", search = "Unreleased", replace = "{{version}}" },
+]
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+backend_common = { path = "../../crates/backend-common" }
+extism-pdk = { workspace = true }
+proto_pdk = { workspace = true }
+rustc-hash = { workspace = true }
+schematic = { workspace = true }
+serde = { workspace = true }
+serde_json = { workspace = true }
+starbase_utils = { workspace = true }
+
+[dev-dependencies]
+proto_pdk_test_utils = { workspace = true }
+starbase_sandbox = { workspace = true }
+tokio = { workspace = true }
+
+[features]
+default = ["wasm"]
+wasm = []

backends/scoop/src/config.rs

@@ -0,0 +1,47 @@
+use proto_pdk::*;
+
+const DEFAULT_BUCKET: &str = "ScoopInstaller/Main";
+const DEFAULT_BRANCH: &str = "master";
+
+/// Configuration for the Scoop backend plugin.
+/// https://github.com/ScoopInstaller/Scoop/wiki/App-Manifests
+#[derive(Debug, Default, schematic::Schematic, serde::Deserialize, serde::Serialize)]
+#[serde(default, deny_unknown_fields, rename_all = "kebab-case")]
+pub struct ScoopToolConfig {
+    /// The GitHub repository for the scoop bucket. Defaults to "ScoopInstaller/Main".
+    pub bucket: Option<String>,
+
+    /// The branch of the bucket repository. Defaults to "master".
+    pub bucket_branch: Option<String>,
+
+    /// Override the manifest filename (without .json extension).
+    /// Defaults to the tool ID.
+    pub manifest_name: Option<String>,
+}
+
+impl ScoopToolConfig {
+    pub fn get_bucket(&self) -> &str {
+        self.bucket.as_deref().unwrap_or(DEFAULT_BUCKET)
+    }
+
+    pub fn get_branch(&self) -> &str {
+        self.bucket_branch.as_deref().unwrap_or(DEFAULT_BRANCH)
+    }
+
+    pub fn get_manifest_name(&self) -> AnyResult<String> {
+        match &self.manifest_name {
+            Some(name) => Ok(name.clone()),
+            None => Ok(get_plugin_id()?.to_string()),
+        }
+    }
+
+    pub fn get_manifest_url(&self) -> AnyResult<String> {
+        let bucket = self.get_bucket();
+        let branch = self.get_branch();
+        let name = self.get_manifest_name()?;
+
+        Ok(format!(
+            "https://raw.githubusercontent.com/{bucket}/refs/heads/{branch}/bucket/{name}.json"
+        ))
+    }
+}

backends/scoop/src/lib.rs

@@ -0,0 +1,8 @@
+pub mod config;
+pub mod manifest;
+
+#[cfg(feature = "wasm")]
+mod proto;
+
+#[cfg(feature = "wasm")]
+pub use proto::*;