clang-format@14: 14.0.6

Formula/clang-format@14.rb

@@ -0,0 +1,63 @@
+class ClangFormatAT14 < Formula
+  desc "Formatting tools for C, C++, Obj-C, Java, JavaScript, TypeScript"
+  homepage "https://clang.llvm.org/docs/ClangFormat.html"
+  url "https://github.com/llvm/llvm-project/releases/download/llvmorg-14.0.6/llvm-14.0.6.src.tar.xz"
+  sha256 "050922ecaaca5781fdf6631ea92bc715183f202f9d2f15147226f023414f619a"
+  license "Apache-2.0"
+
+  livecheck do
+    url :stable
+    regex(/llvmorg[._-]v?(\d+(?:\.\d+)+)/i)
+    strategy :github_latest
+  end
+
+  depends_on "cmake" => :build
+
+  uses_from_macos "libxml2"
+  uses_from_macos "ncurses"
+  uses_from_macos "python", since: :catalina
+  uses_from_macos "zlib"
+
+  on_linux do
+    keg_only "it conflicts with llvm"
+  end
+
+  resource "clang" do
+    url "https://github.com/llvm/llvm-project/releases/download/llvmorg-14.0.6/clang-14.0.6.src.tar.xz"
+    sha256 "2b5847b6a63118b9efe5c85548363c81ffe096b66c3b3675e953e26342ae4031"
+  end
+
+  def install
+    resource("clang").stage do |r|
+      (buildpath/"llvm-#{version}.src/tools/clang").install Pathname("clang-#{r.version}.src").children
+    end
+
+    llvmpath = buildpath/"llvm-#{version}.src"
+
+    system "cmake", "-S", llvmpath, "-B", "build",
+                    "-DLLVM_EXTERNAL_PROJECTS=clang",
+                    "-DLLVM_INCLUDE_BENCHMARKS=OFF",
+                    *std_cmake_args
+    system "cmake", "--build", "build", "--target", "clang-format"
+
+    git_clang_format = llvmpath/"tools/clang/tools/clang-format/git-clang-format"
+    inreplace git_clang_format, %r{^#!/usr/bin/env python$}, "#!/usr/bin/env python3"
+
+    bin.install buildpath/"build/bin/clang-format" => "clang-format-14"
+    bin.install git_clang_format => "git-clang-format-14"
+  end
+
+  test do
+    system "git", "init"
+    system "git", "commit", "--allow-empty", "-m", "initial commit", "--quiet"
+
+    # NB: below C code is messily formatted on purpose.
+    (testpath/"test.c").write <<~EOS
+      int         main(char *args) { \n   \t printf("hello"); }
+    EOS
+    system "git", "add", "test.c"
+
+    assert_equal "int main(char *args) { printf(\"hello\"); }\n",
+        shell_output("#{bin}/clang-format-14 -style=Google test.c")
+  end
+end