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96 lines
3.8 KiB
Plaintext
96 lines
3.8 KiB
Plaintext
rules:
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rule-configurations:
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#
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# This is the default value (as of the time I wrote this) but I'm making
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# it explicit since it needs to agree with the value used by clang-format.
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# Thus, if we ever change the fish style to allow longer or shorter lines
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# this should be changed (as well as the corresponding .clang-format file).
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#
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- key: LONG_LINE
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value: 100
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#
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# The default limit for the length of variable names is 20. Long names are
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# problematic but twenty chars results in way too many errors. So increase
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# the limit to something more reasonable.
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#
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- key: LONG_VARIABLE_NAME
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value: 30
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#
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# This allows us to avoid peppering our code with inline comments such as
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#
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# scoped_lock locker(m_lock); //!OCLINT(side-effect)
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#
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# Specifically, this config key tells oclint that the named classes have
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# RAII behavior so the local vars are actually used.
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#
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- key: RAII_CUSTOM_CLASSES
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value: scoped_lock scoped_buffer_t builtin_commandline_scoped_transient_t scoped_push
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# We're slightly more persmissive regarding the total number of lines in a
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# function. Default is 50.
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- key: LONG_METHOD
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value: 60
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# We're slightly more persmissive regarding the number of non-comment
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# lines in a function. Default is 30.
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- key: NCSS_METHOD
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value: 40
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# We're willing to allow slighly more linearly independent paths through a
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# function. Most of our code has a lot of `switch` blocks or consecutive
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# `if` tests that are straightforward to interpret but which increase this
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# metric. Default is 10.
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- key: CYCLOMATIC_COMPLEXITY
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value: 14
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# We're willing to allow slighly more execution paths through a function.
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# Default is 200.
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- key: NPATH_COMPLEXITY
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value: 300
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disable-rules:
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#
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# A few instances of "useless parentheses" errors are meaningful. Mostly
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# in the context of the `return` statement. Unfortunately the vast
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# majority would result in removing parentheses that decreases
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# readability. So we're going to ignore this warning and rely on humans to
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# notice when the parentheses are truly not needed.
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#
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# Also, some macro expansions, such as FD_SET(), trigger this warning and
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# we don't want to suppress each of those individually.
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#
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- UselessParentheses
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#
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# OCLint wants variable names to be at least three characters in length.
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# Which would be fine if it supported a reasonable set of exceptions
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# (e.g., "i", "j", "k") and allowed adding additional exceptions to match
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# conventions employed by a project. Since it doesn't, and thus generates
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# a lot of really annoying warnings, we're going to disable this rule.
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#
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- ShortVariableName
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#
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# This rule flags perfectly reasonable conditions like `if (!some_condition)`
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# and is therefore just noise. Disable this rule.
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#
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- InvertedLogic
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#
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# The idea behind the "double negative" rule is sound since constructs
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# like "!!(var & flag)" should be written as "static_cast<bool>(var &
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# flag)". Unfortunately this rule has way too many false positives;
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# especially in the context of assert statements. So disable this rule.
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#
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- DoubleNegative
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#
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# Avoiding bitwise operators in a conditional is a good idea with one
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# exception: testing whether a bit flag is set. Which happens to be the
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# only time you'll see something like `if (j->flags & JOB_CONSTRUCTED)`
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# in fish source.
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#
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- BitwiseOperatorInConditional
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#
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# I don't think I've ever seen a case where assigning a value to a
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# parameter inside the function body was unclear, let along dangerous or
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# an error. This rule is therefore just noise. Disable this rule.
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#
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- ParameterReassignment
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