feat: replace hardcoded buffer sizes with PIPESIZE constant

Co-authored-by: aider (openai/andrew/openrouter/deepseek/deepseek-chat-v3.1) <aider@aider.chat>

src/modes/get.rs

@@ -2,6 +2,7 @@ use anyhow::{anyhow, Result};
 use std::io::{Write};
 
 use crate::common::is_binary::is_binary;
+use crate::common::PIPESIZE;
 use crate::config;
 use crate::services::item_service::ItemService;
 use clap::Command;
@@ -61,7 +62,7 @@ pub fn mode_get(
 
     if detect_binary {
         // Read only the first 8192 bytes for binary detection
-        let mut sample_buffer = vec![0; 8192];
+        let mut sample_buffer = vec![0; PIPESIZE];
         let bytes_read = reader.read(&mut sample_buffer)?;
         if is_binary(&sample_buffer[..bytes_read]) {
             return Err(anyhow!(
@@ -77,7 +78,7 @@ pub fn mode_get(
 
     // Stream the content to stdout
     let mut stdout = std::io::stdout();
-    let mut buffer = [0; 8192];
+    let mut buffer = [0; PIPESIZE];
     loop {
         let bytes_read = reader.read(&mut buffer)?;
         if bytes_read == 0 {

src/services/async_item_service.rs

@@ -1,3 +1,4 @@
+use crate::common::PIPESIZE;
 use crate::services::error::CoreError;
 use crate::services::item_service::ItemService;
 use crate::services::types::{ItemWithContent, ItemWithMeta};
@@ -204,7 +205,7 @@ impl AsyncItemService {
             // Apply offset by reading and discarding bytes
             if offset > 0 {
                 let mut remaining = offset;
-                let mut buf = [0; 8192];
+                let mut buf = [0; PIPESIZE];
                 while remaining > 0 {
                     let to_read = std::cmp::min(remaining, buf.len() as u64);
                     match reader.read(&mut buf[..to_read as usize]) {
@@ -220,7 +221,7 @@ impl AsyncItemService {
             
             // Read and send data up to the specified length
             let mut remaining_length = length;
-            let mut buffer = [0; 8192];
+            let mut buffer = [0; PIPESIZE];
             
             loop {
                 // Determine how much to read in this iteration

src/services/item_service.rs

@@ -1,3 +1,4 @@
+use crate::common::PIPESIZE;
 use crate::config::Settings;
 use crate::services::compression_service::CompressionService;
 use crate::services::error::CoreError;
@@ -274,7 +275,7 @@ impl ItemService {
         
         let mut item_out = compression_engine.create(item_path.clone())?;
         
-        let mut buffer = [0; 8192];
+        let mut buffer = [0; PIPESIZE];
         let mut total_bytes = 0;
 
         debug!("ITEM_SERVICE: Starting to read and process input data");