mirror of
https://github.com/DaveGamble/cJSON.git
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55 lines
2.3 KiB
Markdown
55 lines
2.3 KiB
Markdown
Contribution Guidelines
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=======================
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Contributions to cJSON are welcome. If you find a bug or want to improve cJSON in another way, pull requests are appreciated.
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For bigger changes, in order to avoid wasted effort, please open an issue to discuss the technical details before creating a pull request.
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The further sections explain the process in more detail and provides some guidelines on how contributions should look like.
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Branches
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--------
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There are two branches to be aware of, the `master` and the `develop` branch. The `master` branch is reserved for the latest release, so only make pull requests to the `master` branch for small bug- or security fixes (these are usually just a few lines). In all other cases, please make a pull request to the `develop` branch.
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Coding Style
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------------
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The coding style has been discussed in [#24](https://github.com/DaveGamble/cJSON/issues/24). The basics are:
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* Use 4 spaces for indentation
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* No oneliners (conditions, loops, variable declarations ...)
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* Always use parenthesis for control structures
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* Don't implicitly rely on operator precedence, use round brackets in expressions. e.g. `(a > b) && (c < d)` instead of `a>b && c<d`
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* opening curly braces start in the next line
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* use spaces around operators
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* lines should not have trailing whitespace
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* use spaces between function parameters
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* use pronouncable variable names, not just a combination of letters
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Example:
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```c
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/* calculate the new length of the string in a printbuffer and update the offset */
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static void update_offset(printbuffer * const buffer)
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{
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const unsigned char *buffer_pointer = NULL;
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if ((buffer == NULL) || (buffer->buffer == NULL))
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{
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return;
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}
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buffer_pointer = buffer->buffer + buffer->offset;
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buffer->offset += strlen((const char*)buffer_pointer);
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}
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```
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Unit Tests
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----------
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cJSON uses the [Unity](https://github.com/ThrowTheSwitch/Unity) library for unit tests. The tests are located in the `tests` directory. In order to add a new test, either add it to one of the existing files (if it fits) or add a new C file for the test. That new file has to be added to the list of tests in `tests/CMakeLists.txt`.
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All new features have to be covered by unit tests.
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Other Notes
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-----------
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* Internal functions are to be declared static.
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* Wrap the return type of external function in the `CJSON_PUBLIC` macro.
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