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49 lines
1.8 KiB
Markdown
49 lines
1.8 KiB
Markdown
# Contributing to Cutter
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There are many ways you can contribute to cutter.
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The easy one is to open issues with bugs you found on the application.
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The second one is to fix issues found in the GitHub issues tracker.
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## Opening an issue
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Make a clear description of the bug/feature, use screenshots, send binaries, etc.
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## Contributing to the code
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Note that cutter is still under development and many parts of the code are to be improved.
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### CutterCore class
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This is the main class where every link with r2 is made. It is *unique* accross the whole process. To access it, simply call `CutterCore::getInstance()`.
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### Calling a radare2 command
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There are two ways to do it:
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* `CutterCore::cmd()` *(Discouraged)* Only use it for commands which yells no output
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* `CutterCore::cmdj()` To be used with json commands like `cmdj("agj")` or `cmdj("aflj")`. It is way easier to parse a json output.
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### Seek the current file
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To modify radare2 seek use `CutterCore::seek(const RVA offset)`. This is important because it will emit a `CutterCore::seekChanged(RVA offset)` signal.
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Never ever call cmd("s offset");
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### Creating a widget
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Make sure to connect the `CutterCore::seekChanged(RVA offset)` signal so your widget refreshes its output when radare2 seek is modified (switching to another function, etc.).
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## General coding guidelines
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### Code formatting
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We follow [these guidelines](https://wiki.qt.io/Qt_Coding_Style) to format the code.
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If in doubt, you can use [AStyle 2.06](https://sourceforge.net/projects/astyle/files/astyle/astyle%202.06/) to format the code. The command line for formatting the code according to the style is:
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```bash
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astyle --project=src/Cutter.astylerc src/filename.cpp
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```
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### Functions documentation
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It's good to add some documentation to your functions when needed. To do so we follow these [rules](http://doc.qt.io/qt-5/qdoc-guide-writing.html).
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