homebrew-core/Formula/cppcheck.rb

118 lines
4.2 KiB
Ruby

class Cppcheck < Formula
desc "Static analysis of C and C++ code"
homepage "https://sourceforge.net/projects/cppcheck/"
url "https://github.com/danmar/cppcheck/archive/2.4.1.tar.gz"
sha256 "11a9d9fe5305a105561655c45d2cd83cb30fbc87b41d0569de1b00a1a314867f"
license "GPL-3.0-or-later"
head "https://github.com/danmar/cppcheck.git"
bottle do
sha256 arm64_big_sur: "48768ad6f9d3eea1736bf2c91071d2c85883bf5485e0ceaf1cdf2d6f80c85743"
sha256 big_sur: "4aa26128b5b22730d005a2c1faed82d2e5ff5072331765915f812bd6279e7077"
sha256 catalina: "7522e2ef04467bbd45f23d50242b35bdac552c6f5bcdef795ae52f1122d83fad"
sha256 mojave: "8bc9e90fb422973484d1df7338b0b4ecd3d4a4839d57c688079d597620dd8332"
end
depends_on "cmake" => :build
depends_on "python@3.9" => [:build, :test]
depends_on "pcre"
uses_from_macos "libxml2"
def install
args = std_cmake_args + %W[
-DHAVE_RULES=ON
-DUSE_MATCHCOMPILER=ON
-DPYTHON_EXECUTABLE=#{Formula["python@3.9"].opt_bin}/python3
]
system "cmake", "-S", ".", "-B", "build", *args
system "cmake", "--build", "build"
system "cmake", "--install", "build"
# Move the python addons to the cppcheck pkgshare folder
(pkgshare/"addons").install Dir.glob("addons/*.py")
end
test do
# Execution test with an input .cpp file
test_cpp_file = testpath/"test.cpp"
test_cpp_file.write <<~EOS
#include <iostream>
using namespace std;
int main()
{
cout << "Hello World!" << endl;
return 0;
}
class Example
{
public:
int GetNumber() const;
explicit Example(int initialNumber);
private:
int number;
};
Example::Example(int initialNumber)
{
number = initialNumber;
}
EOS
system "#{bin}/cppcheck", test_cpp_file
# Test the "out of bounds" check
test_cpp_file_check = testpath/"testcheck.cpp"
test_cpp_file_check.write <<~EOS
int main()
{
char a[10];
a[10] = 0;
return 0;
}
EOS
output = shell_output("#{bin}/cppcheck #{test_cpp_file_check} 2>&1")
assert_match "out of bounds", output
# Test the addon functionality: sampleaddon.py imports the cppcheckdata python
# module and uses it to parse a cppcheck dump into an OOP structure. We then
# check the correct number of detected tokens and function names.
addons_dir = pkgshare/"addons"
cppcheck_module = "#{name}data"
expect_token_count = 55
expect_function_names = "main,GetNumber,Example"
assert_parse_message = "Error: sampleaddon.py: failed: can't parse the #{name} dump."
sample_addon_file = testpath/"sampleaddon.py"
sample_addon_file.write <<~EOS
#!/usr/bin/env #{Formula["python@3.9"].opt_bin}/python3
"""A simple test addon for #{name}, prints function names and token count"""
import sys
from importlib import machinery, util
# Manually import the '#{cppcheck_module}' module
spec = machinery.PathFinder().find_spec("#{cppcheck_module}", ["#{addons_dir}"])
cpp_check_data = util.module_from_spec(spec)
spec.loader.exec_module(cpp_check_data)
for arg in sys.argv[1:]:
# Parse the dump file generated by #{name}
configKlass = cpp_check_data.parsedump(arg)
if len(configKlass.configurations) == 0:
sys.exit("#{assert_parse_message}") # Parse failure
fConfig = configKlass.configurations[0]
# Pick and join the function names in a string, separated by ','
detected_functions = ','.join(fn.name for fn in fConfig.functions)
detected_token_count = len(fConfig.tokenlist)
# Print the function names on the first line and the token count on the second
print("%s\\n%s" %(detected_functions, detected_token_count))
EOS
system "#{bin}/cppcheck", "--dump", test_cpp_file
test_cpp_file_dump = "#{test_cpp_file}.dump"
assert_predicate testpath/test_cpp_file_dump, :exist?
output = shell_output(Formula["python@3.9"].opt_bin/"python3 #{sample_addon_file} #{test_cpp_file_dump}")
assert_match "#{expect_function_names}\n#{expect_token_count}", output
end
end