Migrate to go-git/go-git v5.0.0 (#10735)

vendor/github.com/src-d/gcfg/scanner/errors.go

@@ -1,121 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package scanner
-
-import (
-	"fmt"
-	"io"
-	"sort"
-)
-
-import (
-	"github.com/src-d/gcfg/token"
-)
-
-// In an ErrorList, an error is represented by an *Error.
-// The position Pos, if valid, points to the beginning of
-// the offending token, and the error condition is described
-// by Msg.
-//
-type Error struct {
-	Pos token.Position
-	Msg string
-}
-
-// Error implements the error interface.
-func (e Error) Error() string {
-	if e.Pos.Filename != "" || e.Pos.IsValid() {
-		// don't print "<unknown position>"
-		// TODO(gri) reconsider the semantics of Position.IsValid
-		return e.Pos.String() + ": " + e.Msg
-	}
-	return e.Msg
-}
-
-// ErrorList is a list of *Errors.
-// The zero value for an ErrorList is an empty ErrorList ready to use.
-//
-type ErrorList []*Error
-
-// Add adds an Error with given position and error message to an ErrorList.
-func (p *ErrorList) Add(pos token.Position, msg string) {
-	*p = append(*p, &Error{pos, msg})
-}
-
-// Reset resets an ErrorList to no errors.
-func (p *ErrorList) Reset() { *p = (*p)[0:0] }
-
-// ErrorList implements the sort Interface.
-func (p ErrorList) Len() int      { return len(p) }
-func (p ErrorList) Swap(i, j int) { p[i], p[j] = p[j], p[i] }
-
-func (p ErrorList) Less(i, j int) bool {
-	e := &p[i].Pos
-	f := &p[j].Pos
-	if e.Filename < f.Filename {
-		return true
-	}
-	if e.Filename == f.Filename {
-		return e.Offset < f.Offset
-	}
-	return false
-}
-
-// Sort sorts an ErrorList. *Error entries are sorted by position,
-// other errors are sorted by error message, and before any *Error
-// entry.
-//
-func (p ErrorList) Sort() {
-	sort.Sort(p)
-}
-
-// RemoveMultiples sorts an ErrorList and removes all but the first error per line.
-func (p *ErrorList) RemoveMultiples() {
-	sort.Sort(p)
-	var last token.Position // initial last.Line is != any legal error line
-	i := 0
-	for _, e := range *p {
-		if e.Pos.Filename != last.Filename || e.Pos.Line != last.Line {
-			last = e.Pos
-			(*p)[i] = e
-			i++
-		}
-	}
-	(*p) = (*p)[0:i]
-}
-
-// An ErrorList implements the error interface.
-func (p ErrorList) Error() string {
-	switch len(p) {
-	case 0:
-		return "no errors"
-	case 1:
-		return p[0].Error()
-	}
-	return fmt.Sprintf("%s (and %d more errors)", p[0], len(p)-1)
-}
-
-// Err returns an error equivalent to this error list.
-// If the list is empty, Err returns nil.
-func (p ErrorList) Err() error {
-	if len(p) == 0 {
-		return nil
-	}
-	return p
-}
-
-// PrintError is a utility function that prints a list of errors to w,
-// one error per line, if the err parameter is an ErrorList. Otherwise
-// it prints the err string.
-//
-func PrintError(w io.Writer, err error) {
-	if list, ok := err.(ErrorList); ok {
-		for _, e := range list {
-			fmt.Fprintf(w, "%s\n", e)
-		}
-	} else if err != nil {
-		fmt.Fprintf(w, "%s\n", err)
-	}
-}