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cs:coding_conventions:start [2016/09/23 21:41] Brandon Kallaher [All Languages] |
cs:coding_conventions:start [2017/04/08 12:50] (current) Brandon Kallaher |
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Due to this being a collaborative software project among new developers, it's important to make sure that the code you write is clean and usable by others. We predominantly use two languages in this project, C++ and Python. Below are a list of coding conventions for each respective language in the project. There may be exceptions to these rules, but otherwise they should be followed. A code linter will be created to ensure that code conforms to there standards. | Due to this being a collaborative software project among new developers, it's important to make sure that the code you write is clean and usable by others. We predominantly use two languages in this project, C++ and Python. Below are a list of coding conventions for each respective language in the project. There may be exceptions to these rules, but otherwise they should be followed. A code linter will be created to ensure that code conforms to there standards. | ||
+ | ====== roslint ====== | ||
+ | To check if you code passes standard checks, compile using: | ||
+ | rsmake roslint | ||
+ | This will invoke the compiler with the code linter turned on. The C++ linter will run first and will fail with an error if the linter fails and the Python linter will not be run. If the C++ code passes the linter then the Python linter will be run. | ||
===== All Languages ===== | ===== All Languages ===== | ||
===Indentation=== | ===Indentation=== | ||
Line 11: | Line 15: | ||
===Trailing Spaces=== | ===Trailing Spaces=== | ||
- | Trailing whitespace at the end of a line is not allowed. | + | Trailing whitespace at the end of a line is not allowed. \\ |
**Rational:** most text editors will actually automatically chop the trailing whitespace when you open a file. If people aren't paying attention, this can result in them commiting a file where they made no functional changes other than to cut the whitespace, resulting in a confusing source control history. In addition, it's just a cleanliness thing. | **Rational:** most text editors will actually automatically chop the trailing whitespace when you open a file. If people aren't paying attention, this can result in them commiting a file where they made no functional changes other than to cut the whitespace, resulting in a confusing source control history. In addition, it's just a cleanliness thing. | ||
+ | |||
+ | ===Extra Newlines=== | ||
+ | More than one blank line in a row is not allowed. \\ | ||
+ | **Rational**: If you need to break up your code into logical chunks it is better to use a single newline and a comment describing the next code block. | ||
===== C++ ===== | ===== C++ ===== | ||
running | running | ||
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===== Python ===== | ===== Python ===== | ||
- | + | Nodes should be defined in classes with the constructor called in the "main" section. | |
- | + | <code python> | |
- | + | def Node(): | |
- | + | def __init__(): | |
+ | # define pubs and subs here | ||
+ | ... | ||
+ | |||
+ | if __name__=='__main__': | ||
+ | rospy.init_node() | ||
+ | Node() | ||
+ | rospy.spin() | ||
+ | </code> |