From 3262842e0adaed63935923bdc14884ac19d7549c Mon Sep 17 00:00:00 2001
From: Takashi Kokubun <takashikkbn@gmail.com>
Date: Tue, 13 Dec 2022 00:22:57 -0800
Subject: Skip calling f.read for `overwrite: true`-only cases

We only need to set outpath for that case.
---
 tool/lib/output.rb | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'tool')

diff --git a/tool/lib/output.rb b/tool/lib/output.rb
index a7faa44810..51e3d32010 100644
--- a/tool/lib/output.rb
+++ b/tool/lib/output.rb
@@ -30,8 +30,10 @@ class Output
 
     if (@ifchange or overwrite or create_only) and (@vpath.open(@path, "rb") {|f|
       outpath = f.path
-      original = f.read
-      (@ifchange and original == data) or (create_only and !original.empty?)
+      if @ifchange or create_only
+        original = f.read
+        (@ifchange and original == data) or (create_only and !original.empty?)
+      end
     } rescue false)
       puts "#{outpath} #{unchanged}"
       written = false
-- 
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