64 lines
1.2 KiB
Go
64 lines
1.2 KiB
Go
|
package lint
|
||
|
|
|
||
|
|
import (
|
||
|
|
"errors"
|
||
|
|
"fmt"
|
||
|
|
"io"
|
||
|
|
"strings"
|
||
|
|
)
|
||
|
|
|
||
|
|
var linterMap map[string]Linter
|
||
|
|
|
||
|
|
// ErrLintNotExists .
|
||
|
|
var ErrLintNotExists = errors.New("linter not exists")
|
||
|
|
|
||
|
|
func init() {
|
||
|
|
linterMap = make(map[string]Linter)
|
||
|
|
}
|
||
|
|
|
||
|
|
// RegisterLinter register linter for a kind of file
|
||
|
|
func RegisterLinter(filetype string, linter Linter) {
|
||
|
|
if _, ok := linterMap[filetype]; ok {
|
||
|
|
panic("linter for filetype " + filetype + " already exists")
|
||
|
|
}
|
||
|
|
linterMap[filetype] = linter
|
||
|
|
}
|
||
|
|
|
||
|
|
// LineErr error contains line number
|
||
|
|
type LineErr struct {
|
||
|
|
Line int `json:"line"`
|
||
|
|
Message string `json:"message"`
|
||
|
|
}
|
||
|
|
|
||
|
|
// Error lint error
|
||
|
|
type Error []LineErr
|
||
|
|
|
||
|
|
func (errs Error) Error() string {
|
||
|
|
messages := make([]string, 0, len(errs))
|
||
|
|
for _, err := range errs {
|
||
|
|
messages = append(messages, fmt.Sprintf("%d:%s", err.Line, err.Message))
|
||
|
|
}
|
||
|
|
return strings.Join(messages, "\n")
|
||
|
|
}
|
||
|
|
|
||
|
|
func (errs Error) String() string {
|
||
|
|
return errs.Error()
|
||
|
|
}
|
||
|
|
|
||
|
|
// Linter lint config file
|
||
|
|
type Linter interface {
|
||
|
|
Lint(r io.Reader) Error
|
||
|
|
}
|
||
|
|
|
||
|
|
// Lint config file,
|
||
|
|
func Lint(filetype string, r io.Reader) error {
|
||
|
|
lint, ok := linterMap[filetype]
|
||
|
|
if !ok {
|
||
|
|
return ErrLintNotExists
|
||
|
|
}
|
||
|
|
if lintErr := lint.Lint(r); lintErr != nil {
|
||
|
|
return lintErr
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|