Search: Allow specifiying the limited of returned entries (#364)

This patch adds a new option to the search command, allowing to limit
the returned results from the database.

src/command/client/search.rs

@@ -55,6 +55,10 @@ pub struct Cmd {
     #[clap(long)]
     after: Option<String>,
 
+    /// How many entries to return at most
+    #[clap(long)]
+    limit: Option<i64>,
+
     /// Open interactive search UI
     #[clap(long, short)]
     interactive: bool,
@@ -97,6 +101,7 @@ impl Cmd {
                 self.exclude_cwd,
                 self.before,
                 self.after,
+                self.limit,
                 &self.query,
                 db,
             )
@@ -589,6 +594,7 @@ async fn run_non_interactive(
     exclude_cwd: Option<String>,
     before: Option<String>,
     after: Option<String>,
+    limit: Option<i64>,
     query: &[String],
     db: &mut (impl Database + Send + Sync),
 ) -> Result<()> {
@@ -606,7 +612,7 @@ async fn run_non_interactive(
 
     let results = db
         .search(
-            None,
+            limit,
             settings.search_mode,
             settings.filter_mode,
             &context,