mirror of https://github.com/go-gitea/gitea.git
85 lines
1.8 KiB
Go
85 lines
1.8 KiB
Go
|
package rule
|
||
|
|
|
||
|
|
import (
|
||
|
|
"bufio"
|
||
|
|
"bytes"
|
||
|
|
"fmt"
|
||
|
|
"go/token"
|
||
|
|
"strings"
|
||
|
|
"unicode/utf8"
|
||
|
|
|
||
|
|
"github.com/mgechev/revive/lint"
|
||
|
|
)
|
||
|
|
|
||
|
|
// LineLengthLimitRule lints given else constructs.
|
||
|
|
type LineLengthLimitRule struct{}
|
||
|
|
|
||
|
|
// Apply applies the rule to given file.
|
||
|
|
func (r *LineLengthLimitRule) Apply(file *lint.File, arguments lint.Arguments) []lint.Failure {
|
||
|
|
if len(arguments) != 1 {
|
||
|
|
panic(`invalid configuration for "line-length-limit"`)
|
||
|
|
}
|
||
|
|
|
||
|
|
max, ok := arguments[0].(int64) // Alt. non panicking version
|
||
|
|
if !ok || max < 0 {
|
||
|
|
panic(`invalid value passed as argument number to the "line-length-limit" rule`)
|
||
|
|
}
|
||
|
|
|
||
|
|
var failures []lint.Failure
|
||
|
|
checker := lintLineLengthNum{
|
||
|
|
max: int(max),
|
||
|
|
file: file,
|
||
|
|
onFailure: func(failure lint.Failure) {
|
||
|
|
failures = append(failures, failure)
|
||
|
|
},
|
||
|
|
}
|
||
|
|
|
||
|
|
checker.check()
|
||
|
|
|
||
|
|
return failures
|
||
|
|
}
|
||
|
|
|
||
|
|
// Name returns the rule name.
|
||
|
|
func (r *LineLengthLimitRule) Name() string {
|
||
|
|
return "line-length-limit"
|
||
|
|
}
|
||
|
|
|
||
|
|
type lintLineLengthNum struct {
|
||
|
|
max int
|
||
|
|
file *lint.File
|
||
|
|
onFailure func(lint.Failure)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (r lintLineLengthNum) check() {
|
||
|
|
f := bytes.NewReader(r.file.Content())
|
||
|
|
spaces := strings.Repeat(" ", 4) // tab width = 4
|
||
|
|
l := 1
|
||
|
|
s := bufio.NewScanner(f)
|
||
|
|
for s.Scan() {
|
||
|
|
t := s.Text()
|
||
|
|
t = strings.Replace(t, "\t", spaces, -1)
|
||
|
|
c := utf8.RuneCountInString(t)
|
||
|
|
if c > r.max {
|
||
|
|
r.onFailure(lint.Failure{
|
||
|
|
Category: "code-style",
|
||
|
|
Position: lint.FailurePosition{
|
||
|
|
// Offset not set; it is non-trivial, and doesn't appear to be needed.
|
||
|
|
Start: token.Position{
|
||
|
|
Filename: r.file.Name,
|
||
|
|
Line: l,
|
||
|
|
Column: 0,
|
||
|
|
},
|
||
|
|
End: token.Position{
|
||
|
|
Filename: r.file.Name,
|
||
|
|
Line: l,
|
||
|
|
Column: c,
|
||
|
|
},
|
||
|
|
},
|
||
|
|
Confidence: 1,
|
||
|
|
Failure: fmt.Sprintf("line is %d characters, out of limit %d", c, r.max),
|
||
|
|
})
|
||
|
|
}
|
||
|
|
l++
|
||
|
|
}
|
||
|
|
}
|