From 972fcb3f2fa4410b80282a9918011aa64a4836eb Mon Sep 17 00:00:00 2001
From: tompng <tomoyapenguin@gmail.com>
Date: Wed, 14 Aug 2024 22:06:49 +0900
Subject: [PATCH] Fix kill pager pid throwing Errno::ESRCH when pager process
 already terminated

---
 lib/irb/pager.rb | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/irb/pager.rb b/lib/irb/pager.rb
index 3391b32c6..558318cdb 100644
--- a/lib/irb/pager.rb
+++ b/lib/irb/pager.rb
@@ -33,7 +33,11 @@ def page(retain_content: false)
       # the `IRB::Abort` exception only interrupts IRB's execution but doesn't affect the pager
       # So to properly terminate the pager with Ctrl-C, we need to catch `IRB::Abort` and kill the pager process
       rescue IRB::Abort
-        Process.kill("TERM", pid) if pid
+        begin
+          Process.kill("TERM", pid) if pid
+        rescue Errno::ESRCH
+          # Pager process already terminated
+        end
         nil
       rescue Errno::EPIPE
       end