149 lines
3.7 KiB
Go
149 lines
3.7 KiB
Go
package golinters
|
|
|
|
import (
|
|
"fmt"
|
|
"go/token"
|
|
"strings"
|
|
"sync"
|
|
|
|
"github.com/golangci/misspell"
|
|
"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 misspellName = "misspell"
|
|
|
|
func NewMisspell(settings *config.MisspellSettings) *goanalysis.Linter {
|
|
var mu sync.Mutex
|
|
var resIssues []goanalysis.Issue
|
|
|
|
analyzer := &analysis.Analyzer{
|
|
Name: misspellName,
|
|
Doc: goanalysis.TheOnlyanalyzerDoc,
|
|
Run: goanalysis.DummyRun,
|
|
}
|
|
|
|
return goanalysis.NewLinter(
|
|
misspellName,
|
|
"Finds commonly misspelled English words in comments",
|
|
[]*analysis.Analyzer{analyzer},
|
|
nil,
|
|
).WithContextSetter(func(lintCtx *linter.Context) {
|
|
replacer, ruleErr := createMisspellReplacer(settings)
|
|
|
|
analyzer.Run = func(pass *analysis.Pass) (interface{}, error) {
|
|
if ruleErr != nil {
|
|
return nil, ruleErr
|
|
}
|
|
|
|
issues, err := runMisspell(lintCtx, pass, replacer)
|
|
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 runMisspell(lintCtx *linter.Context, pass *analysis.Pass, replacer *misspell.Replacer) ([]goanalysis.Issue, error) {
|
|
var fileNames []string
|
|
|
|
for _, f := range pass.Files {
|
|
pos := pass.Fset.PositionFor(f.Pos(), false)
|
|
fileNames = append(fileNames, pos.Filename)
|
|
}
|
|
|
|
var issues []goanalysis.Issue
|
|
for _, filename := range fileNames {
|
|
lintIssues, err := runMisspellOnFile(lintCtx, filename, replacer)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
for i := range lintIssues {
|
|
issues = append(issues, goanalysis.NewIssue(&lintIssues[i], pass))
|
|
}
|
|
}
|
|
|
|
return issues, nil
|
|
}
|
|
|
|
func createMisspellReplacer(settings *config.MisspellSettings) (*misspell.Replacer, error) {
|
|
replacer := &misspell.Replacer{
|
|
Replacements: misspell.DictMain,
|
|
}
|
|
|
|
// Figure out regional variations
|
|
switch strings.ToUpper(settings.Locale) {
|
|
case "":
|
|
// nothing
|
|
case "US":
|
|
replacer.AddRuleList(misspell.DictAmerican)
|
|
case "UK", "GB":
|
|
replacer.AddRuleList(misspell.DictBritish)
|
|
case "NZ", "AU", "CA":
|
|
return nil, fmt.Errorf("unknown locale: %q", settings.Locale)
|
|
}
|
|
|
|
if len(settings.IgnoreWords) != 0 {
|
|
replacer.RemoveRule(settings.IgnoreWords)
|
|
}
|
|
|
|
// It can panic.
|
|
replacer.Compile()
|
|
|
|
return replacer, nil
|
|
}
|
|
|
|
func runMisspellOnFile(lintCtx *linter.Context, filename string, replacer *misspell.Replacer) ([]result.Issue, error) {
|
|
var res []result.Issue
|
|
fileContent, err := lintCtx.FileCache.GetFileBytes(filename)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("can't get file %s contents: %s", filename, err)
|
|
}
|
|
|
|
// use r.Replace, not r.ReplaceGo because r.ReplaceGo doesn't find
|
|
// issues inside strings: it searches only inside comments. r.Replace
|
|
// searches all words: it treats input as a plain text. A standalone misspell
|
|
// tool uses r.Replace by default.
|
|
_, diffs := replacer.Replace(string(fileContent))
|
|
for _, diff := range diffs {
|
|
text := fmt.Sprintf("`%s` is a misspelling of `%s`", diff.Original, diff.Corrected)
|
|
pos := token.Position{
|
|
Filename: filename,
|
|
Line: diff.Line,
|
|
Column: diff.Column + 1,
|
|
}
|
|
replacement := &result.Replacement{
|
|
Inline: &result.InlineFix{
|
|
StartCol: diff.Column,
|
|
Length: len(diff.Original),
|
|
NewString: diff.Corrected,
|
|
},
|
|
}
|
|
|
|
res = append(res, result.Issue{
|
|
Pos: pos,
|
|
Text: text,
|
|
FromLinter: misspellName,
|
|
Replacement: replacement,
|
|
})
|
|
}
|
|
|
|
return res, nil
|
|
}
|