From 4a7bf2efe702b64183259828de470d14df0f0031 Mon Sep 17 00:00:00 2001
From: mame <mame@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 5 Apr 2018 01:05:16 +0000
Subject: `make test-all COVERAGE=true` supports directory-separated build

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63097 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 tool/test-coverage.rb | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

(limited to 'tool')

diff --git a/tool/test-coverage.rb b/tool/test-coverage.rb
index 7a27c5cfb4..e0d7dd06e1 100644
--- a/tool/test-coverage.rb
+++ b/tool/test-coverage.rb
@@ -70,13 +70,28 @@ def invoke_simplecov_formatter
   res = Marshal.load(File.binread(TEST_COVERAGE_DATA_FILE))
   simplecov_result = {}
   base_dir = File.dirname(__dir__)
+  cur_dir = Dir.pwd
 
   res.each do |path, cov|
-    next unless path.start_with?(base_dir)
+    next unless path.start_with?(base_dir) || path.start_with?(cur_dir)
     next if path.start_with?(File.join(base_dir, "test"))
     simplecov_result[path] = cov[:lines]
   end
 
+  a, b = base_dir, cur_dir
+  until a == b
+    if a.size > b.size
+      a = File.dirname(a)
+    else
+      b = File.dirname(b)
+    end
+  end
+  root_dir = a
+
+  SimpleCov.configure do
+    root(root_dir)
+    coverage_dir(File.join(cur_dir, "coverage"))
+  end
   res = SimpleCov::Result.new(simplecov_result)
   res.command_name = "Ruby's `make test-all`"
   SimpleCov::Formatter::HTMLFormatter.new.format(res)
-- 
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