https://git.ruby-lang.org/ruby.git/commit/?id=ed5d032ea3

From ed5d032ea33a465fd7152a236a4aca0ff5653bf3 Mon Sep 17 00:00:00 2001
From: Antonio Terceiro <asa@t...>
Date: Mon, 25 Nov 2019 21:25:53 -0300
Subject: debug.rb: expand filenames in breakpoints

When debugging some local code, specifying a breakpoint to a local
filename does not work, i.e.

    break lib/foo.rb:10

Expanding the filename makes it work. FWIW byebug has the same behavior.

diff --git a/lib/debug.rb b/lib/debug.rb
index ce8b7d7..6f519c6 100644
--- a/lib/debug.rb
+++ b/lib/debug.rb
@@ -427,7 +427,7 @@ class DEBUGGER__ https://github.com/ruby/ruby/blob/trunk/lib/debug.rb#L427
             pos = $2
             if $1
               klass = debug_silent_eval($1, binding)
-              file = $1
+              file = File.expand_path($1)
             end
             if pos =~ /^\d+$/
               pname = pos
-- 
cgit v0.10.2


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