// The vet-lite command is a driver for static checkers conforming to
// the golang.org/x/tools/go/analysis API. It must be run by go vet:
//
//   $ GOVETTOOL=$(which vet-lite) go vet
//
// For a checker also capable of running standalone, use multichecker.
package main

import (
	"flag"
	"log"
	"strings"

	"golang.org/x/tools/go/analysis"
	"golang.org/x/tools/go/analysis/internal/analysisflags"
	"golang.org/x/tools/go/analysis/internal/unitchecker"

	"golang.org/x/tools/go/analysis/passes/asmdecl"
	"golang.org/x/tools/go/analysis/passes/assign"
	"golang.org/x/tools/go/analysis/passes/atomic"
	"golang.org/x/tools/go/analysis/passes/bools"
	"golang.org/x/tools/go/analysis/passes/buildtag"
	"golang.org/x/tools/go/analysis/passes/cgocall"
	"golang.org/x/tools/go/analysis/passes/composite"
	"golang.org/x/tools/go/analysis/passes/copylock"
	"golang.org/x/tools/go/analysis/passes/httpresponse"
	"golang.org/x/tools/go/analysis/passes/loopclosure"
	"golang.org/x/tools/go/analysis/passes/lostcancel"
	"golang.org/x/tools/go/analysis/passes/nilfunc"
	"golang.org/x/tools/go/analysis/passes/pkgfact"
	"golang.org/x/tools/go/analysis/passes/printf"
	"golang.org/x/tools/go/analysis/passes/shift"
	"golang.org/x/tools/go/analysis/passes/stdmethods"
	"golang.org/x/tools/go/analysis/passes/structtag"
	"golang.org/x/tools/go/analysis/passes/tests"
	"golang.org/x/tools/go/analysis/passes/unreachable"
	"golang.org/x/tools/go/analysis/passes/unsafeptr"
	"golang.org/x/tools/go/analysis/passes/unusedresult"
)

var analyzers = []*analysis.Analyzer{
	// For now, just the traditional vet suite:
	asmdecl.Analyzer,
	assign.Analyzer,
	atomic.Analyzer,
	bools.Analyzer,
	buildtag.Analyzer,
	cgocall.Analyzer,
	composite.Analyzer,
	copylock.Analyzer,
	httpresponse.Analyzer,
	loopclosure.Analyzer,
	lostcancel.Analyzer,
	nilfunc.Analyzer,
	pkgfact.Analyzer,
	printf.Analyzer,
	// shadow.Analyzer, // experimental; not enabled by default
	shift.Analyzer,
	stdmethods.Analyzer,
	structtag.Analyzer,
	tests.Analyzer,
	unreachable.Analyzer,
	unsafeptr.Analyzer,
	unusedresult.Analyzer,
}

func main() {
	log.SetFlags(0)
	log.SetPrefix("vet: ")

	if err := analysis.Validate(analyzers); err != nil {
		log.Fatal(err)
	}

	analyzers = analysisflags.Parse(analyzers, true)

	args := flag.Args()
	if len(args) != 1 || !strings.HasSuffix(args[0], ".cfg") {
		log.Fatalf("invalid command: want .cfg file (this reduced version of vet is intended to be run only by the 'go vet' command)")
	}

	unitchecker.Main(args[0], analyzers)
}