homebrew-core/Formula/include-what-you-use.rb

106 lines
3.8 KiB
Ruby

class IncludeWhatYouUse < Formula
desc "Tool to analyze #includes in C and C++ source files"
homepage "https://include-what-you-use.org/"
url "https://include-what-you-use.org/downloads/include-what-you-use-0.15.src.tar.gz"
sha256 "2bd6f2ae0d76e4a9412f468a5fa1af93d5f20bb66b9e7bf73479c31d789ac2e2"
license "NCSA"
revision 2
# This omits the 3.3, 3.4, and 3.5 versions, which come from the older
# version scheme like `Clang+LLVM 3.5` (25 November 2014). The current
# versions are like: `include-what-you-use 0.15 (aka Clang+LLVM 11)`
# (21 November 2020).
livecheck do
url "https://include-what-you-use.org/downloads/"
regex(/href=.*?include-what-you-use[._-]v?((?!3\.[345])\d+(?:\.\d+)+)[._-]src\.t/i)
end
bottle do
sha256 arm64_big_sur: "fc7068fdbc7a9e0bbf2100e5e1dc94ed3bb64a24b4d81386d04ee26639d2a5a0"
sha256 big_sur: "e6df8a20b09f7477fb736af76854189bd98ac7191847d133b1bf63d227897337"
sha256 catalina: "7d8ba990e1bc2ddc345b603bcc7000c5267896bfd16266d1f84633b5bd3a77bf"
sha256 mojave: "8b36ee59b687530695baf9c766010b1356b3f09b6caba4a6750cf8ecd328b36e"
end
depends_on "cmake" => :build
depends_on "llvm" # include-what-you-use 0.15 is compatible with llvm 11.0
uses_from_macos "ncurses"
uses_from_macos "zlib"
def install
# We do not want to symlink clang or libc++ headers into HOMEBREW_PREFIX,
# so install to libexec to ensure that the resource path, which is always
# computed relative to the location of the include-what-you-use executable
# and is not configurable, is also located under libexec.
args = std_cmake_args + %W[
-DCMAKE_INSTALL_PREFIX=#{libexec}
-DCMAKE_PREFIX_PATH=#{Formula["llvm"].opt_lib}
-DCMAKE_CXX_FLAGS=-std=gnu++14
]
mkdir "build" do
system "cmake", *args, ".."
system "make"
system "make", "install"
end
bin.write_exec_script Dir["#{libexec}/bin/*"]
# include-what-you-use needs a copy of the clang and libc++ headers to be
# located in specific folders under its resource path. These may need to be
# updated when new major versions of llvm are released, i.e., by
# incrementing the version of include-what-you-use or the revision of this
# formula. This would be indicated by include-what-you-use failing to
# locate stddef.h and/or stdlib.h when running the test block below.
# https://clang.llvm.org/docs/LibTooling.html#libtooling-builtin-includes
mkdir_p libexec/"lib/clang/#{Formula["llvm"].version}"
cp_r Formula["llvm"].opt_lib/"clang/#{Formula["llvm"].version}/include",
libexec/"lib/clang/#{Formula["llvm"].version}"
mkdir_p libexec/"include"
cp_r Formula["llvm"].opt_include/"c++", libexec/"include"
end
test do
(testpath/"direct.h").write <<~EOS
#include <stddef.h>
size_t function() { return (size_t)0; }
EOS
(testpath/"indirect.h").write <<~EOS
#include "direct.h"
EOS
(testpath/"main.c").write <<~EOS
#include "indirect.h"
int main() {
return (int)function();
}
EOS
expected_output = <<~EOS
main.c should add these lines:
#include "direct.h" // for function
main.c should remove these lines:
- #include "indirect.h" // lines 1-1
The full include-list for main.c:
#include "direct.h" // for function
---
EOS
assert_match expected_output,
shell_output("#{bin}/include-what-you-use main.c 2>&1", 4)
(testpath/"main.cc").write <<~EOS
#include <iostream>
int main() {
std::cout << "Hello, world!" << std::endl;
return 0;
}
EOS
expected_output = <<~EOS
(main.cc has correct #includes/fwd-decls)
EOS
assert_match expected_output,
shell_output("#{bin}/include-what-you-use main.cc 2>&1", 2)
end
end