109 lines
2.9 KiB
Go
109 lines
2.9 KiB
Go
package golinters
|
|
|
|
import (
|
|
"go/token"
|
|
"sync"
|
|
|
|
"github.com/pkg/errors"
|
|
"github.com/ultraware/whitespace"
|
|
"golang.org/x/tools/go/analysis"
|
|
|
|
"github.com/golangci/golangci-lint/pkg/config"
|
|
"github.com/golangci/golangci-lint/pkg/golinters/goanalysis"
|
|
"github.com/golangci/golangci-lint/pkg/lint/linter"
|
|
"github.com/golangci/golangci-lint/pkg/result"
|
|
)
|
|
|
|
const whitespaceName = "whitespace"
|
|
|
|
//nolint:dupl
|
|
func NewWhitespace(settings *config.WhitespaceSettings) *goanalysis.Linter {
|
|
var mu sync.Mutex
|
|
var resIssues []goanalysis.Issue
|
|
|
|
var wsSettings whitespace.Settings
|
|
if settings != nil {
|
|
wsSettings = whitespace.Settings{
|
|
MultiIf: settings.MultiIf,
|
|
MultiFunc: settings.MultiFunc,
|
|
}
|
|
}
|
|
|
|
analyzer := &analysis.Analyzer{
|
|
Name: whitespaceName,
|
|
Doc: goanalysis.TheOnlyanalyzerDoc,
|
|
Run: goanalysis.DummyRun,
|
|
}
|
|
|
|
return goanalysis.NewLinter(
|
|
whitespaceName,
|
|
"Tool for detection of leading and trailing whitespace",
|
|
[]*analysis.Analyzer{analyzer},
|
|
nil,
|
|
).WithContextSetter(func(lintCtx *linter.Context) {
|
|
analyzer.Run = func(pass *analysis.Pass) (interface{}, error) {
|
|
issues, err := runWhitespace(lintCtx, pass, wsSettings)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if len(issues) == 0 {
|
|
return nil, nil
|
|
}
|
|
|
|
mu.Lock()
|
|
resIssues = append(resIssues, issues...)
|
|
mu.Unlock()
|
|
|
|
return nil, nil
|
|
}
|
|
}).WithIssuesReporter(func(*linter.Context) []goanalysis.Issue {
|
|
return resIssues
|
|
}).WithLoadMode(goanalysis.LoadModeSyntax)
|
|
}
|
|
|
|
func runWhitespace(lintCtx *linter.Context, pass *analysis.Pass, wsSettings whitespace.Settings) ([]goanalysis.Issue, error) {
|
|
var messages []whitespace.Message
|
|
for _, file := range pass.Files {
|
|
messages = append(messages, whitespace.Run(file, pass.Fset, wsSettings)...)
|
|
}
|
|
|
|
if len(messages) == 0 {
|
|
return nil, nil
|
|
}
|
|
|
|
issues := make([]goanalysis.Issue, len(messages))
|
|
for k, i := range messages {
|
|
issue := result.Issue{
|
|
Pos: token.Position{
|
|
Filename: i.Pos.Filename,
|
|
Line: i.Pos.Line,
|
|
},
|
|
LineRange: &result.Range{From: i.Pos.Line, To: i.Pos.Line},
|
|
Text: i.Message,
|
|
FromLinter: whitespaceName,
|
|
Replacement: &result.Replacement{},
|
|
}
|
|
|
|
bracketLine, err := lintCtx.LineCache.GetLine(issue.Pos.Filename, issue.Pos.Line)
|
|
if err != nil {
|
|
return nil, errors.Wrapf(err, "failed to get line %s:%d", issue.Pos.Filename, issue.Pos.Line)
|
|
}
|
|
|
|
switch i.Type {
|
|
case whitespace.MessageTypeLeading:
|
|
issue.LineRange.To++ // cover two lines by the issue: opening bracket "{" (issue.Pos.Line) and following empty line
|
|
case whitespace.MessageTypeTrailing:
|
|
issue.LineRange.From-- // cover two lines by the issue: closing bracket "}" (issue.Pos.Line) and preceding empty line
|
|
issue.Pos.Line-- // set in sync with LineRange.From to not break fixer and other code features
|
|
case whitespace.MessageTypeAddAfter:
|
|
bracketLine += "\n"
|
|
}
|
|
issue.Replacement.NewLines = []string{bracketLine}
|
|
|
|
issues[k] = goanalysis.NewIssue(&issue, pass)
|
|
}
|
|
|
|
return issues, nil
|
|
}
|