homebrew-core/Formula/include-what-you-use.rb
2019-05-23 16:17:54 -04:00

74 lines
2.7 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-0.12.src.tar.gz"
sha256 "a5892fb0abccb820c394e4e245c00ef30fc94e4ae58a048b23f94047c0816025"
bottle do
sha256 "e5ce12e2d2b7056d8ece7ceb99d4763af538f1c4890135f47979e5cf38306c5d" => :mojave
sha256 "4bf150841df194cf4b56ca9e014b6f2f4bf6ff934d884f33847621094ee5a995" => :high_sierra
sha256 "eb35442872740e747b0e526097cac632fec3fadcaa94ba1ecfd5396d10671acc" => :sierra
end
depends_on "cmake" => :build
depends_on "llvm" # include-what-you-use 0.12 is compatible with llvm 8.0
def install
# We do not want to symlink clang 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}
]
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 headers to be located
# in a specific folder 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 when running the test block below.
# https://clang.llvm.org/docs/LibTooling.html#libtooling-builtin-includes
mkdir_p libexec/"lib/clang/#{Formula["llvm"].version}/include"
cp_r Dir["#{Formula["llvm"].opt_lib}/clang/#{Formula["llvm"].version}/include/*"],
libexec/"lib/clang/#{Formula["llvm"].version}/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)
end
end