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82fd65665f
bidichk checks for dangerous unicode character sequences (https://github.com/golangci/golangci-lint/pull/2330)
89 lines
2.6 KiB
Markdown
89 lines
2.6 KiB
Markdown
[](https://app.travis-ci.com/github/blizzy78/varnamelen) [](https://coveralls.io/github/blizzy78/varnamelen?branch=master) [](https://pkg.go.dev/github.com/blizzy78/varnamelen)
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varnamelen
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==========
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A Go Analyzer checking that the length of a variable's name matches its usage scope.
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A variable with a short name can be hard to use if the variable is used over a longer span of lines of code.
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A longer variable name may be easier to comprehend.
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The analyzer can check variable names, method receiver names, as well as named return values.
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Conventional Go parameters such as `ctx context.Context` or `t *testing.T` will always be ignored.
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**Example output**
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```
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test.go:4:2: variable name 'x' is too short for the scope of its usage (varnamelen)
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x := 123
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^
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test.go:6:2: variable name 'i' is too short for the scope of its usage (varnamelen)
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i := 10
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^
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```
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Standalone Usage
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----------------
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The `cmd/` folder provides a standalone command line utility. You can build it like this:
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```
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go build -o varnamelen ./cmd/
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```
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**Usage**
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```
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varnamelen: checks that the length of a variable's name matches its scope
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Usage: varnamelen [-flag] [package]
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A variable with a short name can be hard to use if the variable is used
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over a longer span of lines of code. A longer variable name may be easier
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to comprehend.
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Flags:
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-V print version and exit
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-all
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no effect (deprecated)
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-c int
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display offending line with this many lines of context (default -1)
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-checkReceiver
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check method receiver names
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-checkReturn
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check named return values
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-cpuprofile string
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write CPU profile to this file
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-debug string
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debug flags, any subset of "fpstv"
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-fix
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apply all suggested fixes
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-flags
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print analyzer flags in JSON
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-ignoreNames value
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comma-separated list of ignored variable names
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-json
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emit JSON output
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-maxDistance int
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maximum number of lines of variable usage scope considered 'short' (default 5)
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-memprofile string
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write memory profile to this file
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-minNameLength int
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minimum length of variable name considered 'long' (default 3)
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-source
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no effect (deprecated)
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-tags string
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no effect (deprecated)
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-trace string
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write trace log to this file
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-v no effect (deprecated)
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```
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License
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-------
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This package is licensed under the MIT license.
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