51 lines
1.3 KiB
Go
51 lines
1.3 KiB
Go
// Package singlechecker defines the main function for an analysis
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// driver with only a single analysis.
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// This package makes it easy for a provider of an analysis package to
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// also provide a standalone tool that runs just that analysis.
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//
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// For example, if example.org/findbadness is an analysis package,
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// all that is needed to define a standalone tool is a file,
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// example.org/findbadness/cmd/findbadness/main.go, containing:
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//
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// // The findbadness command runs an analysis.
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// package main
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//
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// import (
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// "example.org/findbadness"
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// "golang.org/x/tools/go/analysis/singlechecker"
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// )
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//
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// func main() { singlechecker.Main(findbadness.Analyzer) }
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//
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package singlechecker
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import (
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"flag"
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"log"
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"golang.org/x/tools/go/analysis"
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"golang.org/x/tools/go/analysis/internal/checker"
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)
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// Main is the main function for a checker command for a single analysis.
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func Main(a *analysis.Analyzer) {
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log.SetFlags(0)
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log.SetPrefix(a.Name + ": ")
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checker.RegisterFlags()
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a.Flags.VisitAll(func(f *flag.Flag) {
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if flag.Lookup(f.Name) != nil {
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log.Printf("%s flag -%s would conflict with driver; skipping", a.Name, f.Name)
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return
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}
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flag.Var(f.Value, f.Name, f.Usage)
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})
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flag.Parse()
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if err := checker.Run(flag.Args(), []*analysis.Analyzer{a}); err != nil {
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log.Fatal(err)
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}
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}
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