You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
82 lines
2.3 KiB
82 lines
2.3 KiB
4 months ago
|
// Copyright 2019 Google Inc. All rights reserved.
|
||
|
|
//
|
||
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
// you may not use this file except in compliance with the License.
|
||
|
|
// You may obtain a copy of the License at
|
||
|
|
//
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
//
|
||
|
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
// See the License for the specific language governing permissions and
|
||
|
|
// limitations under the License.
|
||
|
|
|
||
|
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"errors"
|
||
|
|
"path/filepath"
|
||
|
|
"strings"
|
||
|
|
)
|
||
|
|
|
||
|
|
// Match returns true if name matches pattern using the same rules as filepath.Match, but supporting
|
||
|
|
// recursive globs (**).
|
||
|
|
func Match(pattern, name string) (bool, error) {
|
||
|
|
if filepath.Base(pattern) == "**" {
|
||
|
|
return false, errors.New("pattern has '**' as last path element")
|
||
|
|
}
|
||
|
|
|
||
|
|
patternDir := pattern[len(pattern)-1] == '/'
|
||
|
|
nameDir := name[len(name)-1] == '/'
|
||
|
|
|
||
|
|
if patternDir != nameDir {
|
||
|
|
return false, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
if nameDir {
|
||
|
|
name = name[:len(name)-1]
|
||
|
|
pattern = pattern[:len(pattern)-1]
|
||
|
|
}
|
||
|
|
|
||
|
|
for {
|
||
|
|
var patternFile, nameFile string
|
||
|
|
pattern, patternFile = filepath.Dir(pattern), filepath.Base(pattern)
|
||
|
|
|
||
|
|
if patternFile == "**" {
|
||
|
|
if strings.Contains(pattern, "**") {
|
||
|
|
return false, errors.New("pattern contains multiple '**'")
|
||
|
|
}
|
||
|
|
// Test if the any prefix of name matches the part of the pattern before **
|
||
|
|
for {
|
||
|
|
if name == "." || name == "/" {
|
||
|
|
return name == pattern, nil
|
||
|
|
}
|
||
|
|
if match, err := filepath.Match(pattern, name); err != nil {
|
||
|
|
return false, err
|
||
|
|
} else if match {
|
||
|
|
return true, nil
|
||
|
|
}
|
||
|
|
name = filepath.Dir(name)
|
||
|
|
}
|
||
|
|
} else if strings.Contains(patternFile, "**") {
|
||
|
|
return false, errors.New("pattern contains other characters between '**' and path separator")
|
||
|
|
}
|
||
|
|
|
||
|
|
name, nameFile = filepath.Dir(name), filepath.Base(name)
|
||
|
|
|
||
|
|
if nameFile == "." && patternFile == "." {
|
||
|
|
return true, nil
|
||
|
|
} else if nameFile == "/" && patternFile == "/" {
|
||
|
|
return true, nil
|
||
|
|
} else if nameFile == "." || patternFile == "." || nameFile == "/" || patternFile == "/" {
|
||
|
|
return false, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
match, err := filepath.Match(patternFile, nameFile)
|
||
|
|
if err != nil || !match {
|
||
|
|
return match, err
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|