Xcov

xcov is an coverage generator c/c++ projects

License

xcov is licensed under the AGPLv3 license. For the complete license, please see the LICENSE file.

Dependencys

• nlohmann json
• inja
• GNU source-highlight
• boost::process (boost::filesystem), boost::asio, boost/algorithm/string.hpp
• gcc's gcov binary
• gzip (to decompress .gz files)

How to use

xcov can generate html coverage reports.

To do this you need a bit of perperation; you need to compile your code to generate coverage files. For gcc this is easy done by adding the --coverage flag when invoking gcc. You then need to actually run your binary once to generate the relevant runtime data.

Once this is done, you can invoke xcov: xcov -o reports; this will generate html reports for all your sourcefiles inside the folder reports.

If you know where your .gcda and .gcno files lay, you also can restrict xcov's search by using --root. For example let's say we have an build dir where all .o, .gcda and .gcno files are. You now can run xcov -r build -o reports instead, and xcov will only search in build.

Configuration files

Nearly all commandline switches can also be configured via a config file.

xcov searches following paths for an config file (and also applies them in this order):

• The systems configuration dir (/usr/local/etc/xcov/default.cfg when installed through make install-local)
• The user's configuration dir ($HOME/.config/xcov/user.cfg)
• xcov searches all parent directories from it's invokation directory for xcov.cfg. These files are included top-to-bottom, top being here the system root and bottom the current directory. This makes it possible to invoke xcov in subfolders of your project and still getting the correct config.
• The --config argument
• All other cli flags

The format is an simple .ini style syntax:

# Lines with an hashtag in front of it are line-comments; they are ignored

# These are sections; currently there are two supported: 'main' and 'source_highlight'
[main]

# Inside an section there are key=value pairs. The value MUST be quoted, but the spaces around the equal sign
# are optional. Note that the only thing allowed after the value are spaces or comments.
title = "Code Coverage Report"

For documentation what keys are available, please have a look into src/config.cpp.