homebrew-core/Formula/cppcheck.rb
2019-01-24 14:22:13 +00:00

108 lines
3.8 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/1.86.tar.gz"
sha256 "86ea85c2ee5ec31a7410bfc7c206b87e600d284089428750d66d1ce1ffa0c9a6"
head "https://github.com/danmar/cppcheck.git"
bottle do
sha256 "62bc7a5de5fcd3ab3bed91c3e845496553bd4ec1d7dccf043e724e4bfdf36083" => :mojave
sha256 "f284c2e2b62b1a341c7c0c65d70e1c8e89e260e8a3c6346d0a2f40fe27e381de" => :high_sierra
sha256 "b67435545ca439c8cba2656ce28f71f8b66c01c2c42f7c6ad650eeeaff0aa655" => :sierra
end
depends_on "pcre"
def install
ENV.cxx11
system "make", "HAVE_RULES=yes", "CFGDIR=#{prefix}/cfg"
# CFGDIR is relative to the prefix for install, don't add #{prefix}.
system "make", "DESTDIR=#{prefix}", "BIN=#{bin}", "CFGDIR=/cfg", "install"
# Move the python addons to the cppcheck pkgshare folder
(pkgshare/"addons").install Dir.glob(bin/"*.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 python
"""A simple test addon for #{name}, prints function names and token count"""
import sys
import imp
# Manually import the '#{cppcheck_module}' module
CFILE, FNAME, CDATA = imp.find_module("#{cppcheck_module}", ["#{addons_dir}"])
CPPCHECKDATA = imp.load_module("#{cppcheck_module}", CFILE, FNAME, CDATA)
for arg in sys.argv[1:]:
# Parse the dump file generated by #{name}
configKlass = CPPCHECKDATA.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("python #{sample_addon_file} #{test_cpp_file_dump}")
assert_match "#{expect_function_names}\n#{expect_token_count}", output
end
end