flawfinder/CONTRIBUTING.md

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# How to contribute to Flawfinder
We love contributions! Here's how to do them in a way that will
make everyone's lives easy.
## Reporting
For normal problems, bugs, and feature requests, please file a
[ticket](https://sourceforge.net/p/flawfinder/_list/tickets).
If you find a vulnerability, please separately send a private email to
[David A. Wheeler](https://www.dwheeler.com/contactme.html).
We plan to handle vulnerabilities separately, fixing them and *then*
telling the world. We will gladly provide credit to vulnerability reporters
(unless you don't want the credit). We've never had a vulnerability
report, so this is theoretical at this time.
## Change process
We use "git" to track changes. To propose a change, create a fork
(copy) of the repository, make your changes, and create a
merge request (also called a pull request).
If you're not familiar with the process, here's some
[documentation](https://sourceforge.net/p/forge/documentation/Git/).
## License and DCO
All proposed changes must be released under at least the project license,
in this case the GNU GPL version 2 or later (GPL-2.0+).
Proposers must agree to the
[Developer's Certificate of Origin](https://developercertificate.org/),
aka DCO.
The DCO basically says that you assert that you're legally allowed to
provide the commit. Please include in your commit a statement of the
form to confirm this ("git commit -s" will do this):
> Signed-off-by: Your-name <your-email-address>
You much include the DCO in your first commit proposal.
If you forget occasionally, we'll assume that you just forgot, but
please try to not forget.
## Code Conventions
To make the program easy to install everywhere, the main executable
is exactly one self-contained file. That involves some compromises,
but for now, please keep it that way.
We generally use the code conventions of
[PEP 8](https://www.python.org/dev/peps/pep-0008/).
The Python code uses 4-space indents (we used to use 2-space indents).
Do not use tabs. In some cases the code doesn't yet comply;
patches to improve that are often welcome.
The code is currently Python 2, and is only tested on
the Python 2.7 series. Please don't make it hard to convert
to Python 3 when that eventually happens.
WE use "pylint" to check for style and other problems.
This is configured by the included "pylintrc" file.
We intentionally disable some checks as being "less important",
for example, the current code has many lines longer than 80 characters.
That said, patches to make lines fit in 80 characters are welcome.
We require that the pylint results for contributions be at least 9.5/10 as
configured with the provided "pylintrc" file, without any errors ("E").
Better is better. You can run "make pylint" to run this check.
The current version *does* cause some pylint reports
(patches to fix those are welcome!).
An easy way to install pylint is to use pip.
Most python installs have pip, but if yours does not
(e.g., Cygwin), install pip with:
> python -m ensurepip
You may want to upgrade pip with:
> pip install --upgrade pip
Finally, you can actually install pylint using:
> pip install pylint
## Tests
Make *sure* that your code passes the automated tests. Invoke tests with
"make check".
It's our policy that as major new functionality is added to the software
produced by the project, tests of that functionality should be added to
the automated test suite.
## Other
We want to eventually earn a
[CII Best Practices Badge](https://bestpractices.coreinfrastructure.org/projects/323).