From e9e3c6711f92eb1f7fae648dea79ded2862769d5 Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Sun, 20 Feb 2022 18:13:59 -0500
Subject: [PATCH] Add build_dir script method - close #155

---
 build_tests/typical/build_dir.rb |  3 +++
 lib/rscons/script.rb             |  8 ++++++++
 spec/build_tests_spec.rb         | 18 ++++++++++++++++++
 3 files changed, 29 insertions(+)
 create mode 100644 build_tests/typical/build_dir.rb

diff --git a/build_tests/typical/build_dir.rb b/build_tests/typical/build_dir.rb
new file mode 100644
index 0000000..9802276
--- /dev/null
+++ b/build_tests/typical/build_dir.rb
@@ -0,0 +1,3 @@
+default do
+  touch "#{build_dir}/a.file"
+end
diff --git a/lib/rscons/script.rb b/lib/rscons/script.rb
index cf1ebf8..c359ee6 100644
--- a/lib/rscons/script.rb
+++ b/lib/rscons/script.rb
@@ -10,6 +10,14 @@ module Rscons
         @script = script
       end
 
+      # Get the Rscons build directory path.
+      #
+      # @return [String]
+      #   Rscons build directory path.
+      def build_dir
+        Rscons.application.build_dir
+      end
+
       # Return a list of paths matching the specified pattern(s).
       #
       # A pattern can contain a "/**" component to recurse through directories.
diff --git a/spec/build_tests_spec.rb b/spec/build_tests_spec.rb
index d9f96d8..6f23e3a 100644
--- a/spec/build_tests_spec.rb
+++ b/spec/build_tests_spec.rb
@@ -3187,4 +3187,22 @@ EOF
     end
   end
 
+  context "build_dir method" do
+    it "returns the top-level build directory path 1" do
+      test_dir "typical"
+      result = run_rscons(args: %w[-f build_dir.rb])
+      expect(result.stderr).to eq ""
+      expect(result.status).to eq 0
+      expect(File.exist?("build/a.file")).to be_truthy
+    end
+
+    it "returns the top-level build directory path 2" do
+      test_dir "typical"
+      result = run_rscons(args: %w[-f build_dir.rb -b bb])
+      expect(result.stderr).to eq ""
+      expect(result.status).to eq 0
+      expect(File.exist?("bb/a.file")).to be_truthy
+    end
+  end
+
 end