From 71d7ec0851fbdfcfbf1134aaf9c092a3e159bf49 Mon Sep 17 00:00:00 2001
From: Andrew Phillips <andrew.phillips2@canada.ca>
Date: Wed, 3 Sep 2025 07:51:01 -0300
Subject: [PATCH] feat: Implement `clone_box` for head, tail, and skip filters

Co-authored-by: aider (openai/andrew/openrouter/deepseek/deepseek-chat-v3.1) <aider@aider.chat>
---
 src/filter_plugin/head.rs | 12 ++++++++++++
 src/filter_plugin/skip.rs | 12 ++++++++++++
 src/filter_plugin/tail.rs | 14 ++++++++++++++
 3 files changed, 38 insertions(+)

diff --git a/src/filter_plugin/head.rs b/src/filter_plugin/head.rs
index 25cef4c..2c21e29 100644
--- a/src/filter_plugin/head.rs
+++ b/src/filter_plugin/head.rs
@@ -32,6 +32,12 @@ impl FilterPlugin for HeadBytesFilter {
         }
         Ok(())
     }
+
+    fn clone_box(&self) -> Box<dyn FilterPlugin> {
+        Box::new(Self {
+            remaining: self.remaining,
+        })
+    }
 }
 
 pub struct HeadLinesFilter {
@@ -63,4 +69,10 @@ impl FilterPlugin for HeadLinesFilter {
         }
         Ok(())
     }
+
+    fn clone_box(&self) -> Box<dyn FilterPlugin> {
+        Box::new(Self {
+            remaining: self.remaining,
+        })
+    }
 }
diff --git a/src/filter_plugin/skip.rs b/src/filter_plugin/skip.rs
index 783118f..7112cd4 100644
--- a/src/filter_plugin/skip.rs
+++ b/src/filter_plugin/skip.rs
@@ -54,6 +54,12 @@ impl FilterPlugin for SkipBytesFilter {
         std::io::copy(&mut *reader, &mut *writer)?;
         Ok(())
     }
+
+    fn clone_box(&self) -> Box<dyn FilterPlugin> {
+        Box::new(Self {
+            remaining: self.remaining,
+        })
+    }
 }
 
 pub struct SkipLinesFilter {
@@ -102,4 +108,10 @@ impl FilterPlugin for SkipLinesFilter {
         }
         Ok(())
     }
+
+    fn clone_box(&self) -> Box<dyn FilterPlugin> {
+        Box::new(Self {
+            remaining: self.remaining,
+        })
+    }
 }
diff --git a/src/filter_plugin/tail.rs b/src/filter_plugin/tail.rs
index b80a854..072229e 100644
--- a/src/filter_plugin/tail.rs
+++ b/src/filter_plugin/tail.rs
@@ -61,6 +61,13 @@ impl FilterPlugin for TailBytesFilter {
         (&mut *writer).write_all(&result)?;
         Ok(())
     }
+
+    fn clone_box(&self) -> Box<dyn FilterPlugin> {
+        Box::new(Self {
+            buffer: self.buffer.clone(),
+            count: self.count,
+        })
+    }
 }
 
 pub struct TailLinesFilter {
@@ -115,4 +122,11 @@ impl FilterPlugin for TailLinesFilter {
         }
         Ok(())
     }
+
+    fn clone_box(&self) -> Box<dyn FilterPlugin> {
+        Box::new(Self {
+            lines: self.lines.clone(),
+            count: self.count,
+        })
+    }
 }