96 lines
2.2 KiB
Go
96 lines
2.2 KiB
Go
package golinters
|
|
|
|
import (
|
|
"fmt"
|
|
"go/token"
|
|
"sync"
|
|
|
|
duplAPI "github.com/golangci/dupl"
|
|
"golang.org/x/tools/go/analysis"
|
|
|
|
"github.com/golangci/golangci-lint/pkg/config"
|
|
"github.com/golangci/golangci-lint/pkg/fsutils"
|
|
"github.com/golangci/golangci-lint/pkg/golinters/goanalysis"
|
|
"github.com/golangci/golangci-lint/pkg/lint/linter"
|
|
"github.com/golangci/golangci-lint/pkg/result"
|
|
)
|
|
|
|
const duplName = "dupl"
|
|
|
|
func NewDupl(settings *config.DuplSettings) *goanalysis.Linter {
|
|
var mu sync.Mutex
|
|
var resIssues []goanalysis.Issue
|
|
|
|
analyzer := &analysis.Analyzer{
|
|
Name: duplName,
|
|
Doc: goanalysis.TheOnlyanalyzerDoc,
|
|
Run: func(pass *analysis.Pass) (any, error) {
|
|
issues, err := runDupl(pass, settings)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if len(issues) == 0 {
|
|
return nil, nil
|
|
}
|
|
|
|
mu.Lock()
|
|
resIssues = append(resIssues, issues...)
|
|
mu.Unlock()
|
|
|
|
return nil, nil
|
|
},
|
|
}
|
|
|
|
return goanalysis.NewLinter(
|
|
duplName,
|
|
"Tool for code clone detection",
|
|
[]*analysis.Analyzer{analyzer},
|
|
nil,
|
|
).WithIssuesReporter(func(*linter.Context) []goanalysis.Issue {
|
|
return resIssues
|
|
}).WithLoadMode(goanalysis.LoadModeSyntax)
|
|
}
|
|
|
|
func runDupl(pass *analysis.Pass, settings *config.DuplSettings) ([]goanalysis.Issue, error) {
|
|
fileNames := getFileNames(pass)
|
|
|
|
issues, err := duplAPI.Run(fileNames, settings.Threshold)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if len(issues) == 0 {
|
|
return nil, nil
|
|
}
|
|
|
|
res := make([]goanalysis.Issue, 0, len(issues))
|
|
|
|
for _, i := range issues {
|
|
toFilename, err := fsutils.ShortestRelPath(i.To.Filename(), "")
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to get shortest rel path for %q: %w", i.To.Filename(), err)
|
|
}
|
|
|
|
dupl := fmt.Sprintf("%s:%d-%d", toFilename, i.To.LineStart(), i.To.LineEnd())
|
|
text := fmt.Sprintf("%d-%d lines are duplicate of %s",
|
|
i.From.LineStart(), i.From.LineEnd(),
|
|
formatCode(dupl, nil))
|
|
|
|
res = append(res, goanalysis.NewIssue(&result.Issue{
|
|
Pos: token.Position{
|
|
Filename: i.From.Filename(),
|
|
Line: i.From.LineStart(),
|
|
},
|
|
LineRange: &result.Range{
|
|
From: i.From.LineStart(),
|
|
To: i.From.LineEnd(),
|
|
},
|
|
Text: text,
|
|
FromLinter: duplName,
|
|
}, pass))
|
|
}
|
|
|
|
return res, nil
|
|
}
|