2014-11-26 15:43:20 +01:00
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Contribution Guidelines
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=======================
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[This text was composed based on 1.2. License section of curl/libcurl
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project.]
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When contributing with code, you agree to put your changes and new
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code under the same license nghttp2 is already using unless stated and
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agreed otherwise.
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When changing existing source code, you do not alter the copyright of
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the original file(s). The copyright will still be owned by the
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original creator(s) or those who have been assigned copyright by the
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original author(s).
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By submitting a patch to the nghttp2 project, you are assumed to have
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the right to the code and to be allowed by your employer or whatever
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to hand over that patch/code to us. We will credit you for your
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changes as far as possible, to give credit but also to keep a trace
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back to who made what changes. Please always provide us with your
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full real name when contributing!
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Coding style
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------------
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We use clang-format to format source code consistently. The
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clang-format configuration file .clang-format is located at the root
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directory. Since clang-format produces slightly different results
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2021-08-04 08:02:20 +02:00
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between versions, we currently use clang-format-12.
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2014-11-26 15:43:20 +01:00
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To detect any violation to the coding style, we recommend to setup git
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pre-commit hook to check coding style of the changes you introduced.
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The pre-commit file is located at the root directory. Copy it under
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.git/hooks and make sure that it is executable. The pre-commit script
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uses clang-format-diff.py to detect any style errors. If it is not in
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2020-12-28 03:45:44 +01:00
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your PATH or it exists under different name (e.g.,
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2021-08-04 08:02:20 +02:00
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clang-format-diff-12 in debian), either add it to PATH variable or add
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2020-12-28 03:45:44 +01:00
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git option ``clangformatdiff.binary`` to point to the script.
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2014-11-26 15:43:20 +01:00
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For emacs users, integrating clang-format to emacs is very easy.
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clang-format.el should come with clang distribution. If it is not
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found, download it from `here
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<https://llvm.org/svn/llvm-project/cfe/trunk/tools/clang-format/clang-format.el>`_.
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And add these lines to your .emacs file:
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.. code-block:: lisp
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;; From
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;; https://code.google.com/p/chromium/wiki/Emacs#Use_Google's_C++_style!
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(load "/<path/to>/clang-format.el")
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(add-hook 'c-mode-common-hook
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(function (lambda () (local-set-key (kbd "TAB")
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'clang-format-region))))
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You can find other editor integration in
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http://clang.llvm.org/docs/ClangFormat.html.
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