feat(service): Add isolate_with plugin query config

This query parameter will isolate search results when the specific regex query is matched.

service/src/lib.rs

@@ -211,9 +211,16 @@ impl<O: futures::Sink<Response> + Unpin> Service<O> {
 
         let init = std::sync::Arc::new(init);
 
+        let isolate_with = config
+            .query
+            .isolate_with
+            .as_ref()
+            .and_then(|expr| Regex::new(&*expr).ok());
+
         entry.insert(PluginConnector::new(
             config,
             regex,
+            isolate_with,
             Box::new(move || {
                 let (request_tx, request_rx) = mpsc::channel(8);
 
@@ -359,6 +366,13 @@ impl<O: futures::Sink<Response> + Unpin> Service<O> {
                 break;
             }
 
+            if let Some(regex) = plugin.isolate_regex.as_ref() {
+                if regex.is_match(query) {
+                    isolated = Some(key);
+                    break;
+                }
+            }
+
             query_queue.push(key);
         }
 

service/src/plugins/config.rs

@@ -49,6 +49,13 @@ pub struct PluginQuery {
     #[serde(default)]
     pub isolate: bool,
 
+    #[serde(
+        default,
+        skip_serializing_if = "Option::is_none",
+        with = "::serde_with::rust::unwrap_or_skip"
+    )]
+    pub isolate_with: Option<Cow<'static, str>>,
+
     #[serde(default)]
     pub no_sort: bool,
 

service/src/plugins/help.rs

@@ -16,6 +16,7 @@ pub const CONFIG: PluginConfig = PluginConfig {
     query: PluginQuery {
         help: None,
         isolate: true,
+        isolate_with: None,
         no_sort: true,
         persistent: false,
         priority: PluginPriority::Default,

service/src/plugins/mod.rs

@@ -79,6 +79,8 @@ pub struct PluginConnector {
     /// this plugin to spawn as a background service
     pub init: Box<dyn Fn() -> Sender<Request>>,
 
+    pub isolate_regex: Option<Regex>,
+
     /// A compiled regular expression that a query must match
     /// for the launcher service to justify spawning and sending
     /// queries to this plugin
@@ -93,11 +95,13 @@ impl PluginConnector {
     pub fn new(
         config: PluginConfig,
         regex: Option<Regex>,
+        isolate_regex: Option<Regex>,
         init: Box<dyn Fn() -> Sender<Request> + Send>,
     ) -> Self {
         Self {
             config,
             init,
+            isolate_regex,
             regex,
             sender: None,
         }