github.com/hasnat/dolt/go@v0.0.0-20210628190320-9eb5d843fbb7/libraries/doltcore/ref/branchname.go (about)

     1  // Copyright 2019 Dolthub, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package ref
    16  
    17  import (
    18  	"regexp"
    19  	"strings"
    20  )
    21  
    22  // The following list of patterns are all forbidden in a branch name.
    23  var InvalidBranchNameRegex = regexp.MustCompile(strings.Join([]string{
    24  	// Any appearance of a period, currently unsupported by noms layer
    25  	`[.*]`,
    26  	// Any appearance of the following characters: :, ?, [, \, ^, ~, SPACE, TAB, *
    27  	`:`, `\?`, `\[`, `\\`, `\^`, `~`, ` `, `\t`, `\*`,
    28  	// Any ASCII control character.
    29  	`[\x00-\x1f]`, `\x7f`,
    30  	// Any component ending with ".lock"
    31  	`\.lock\z`, `\.lock\/`,
    32  	// An exact name of "", "HEAD" or "-"
    33  	`\A\z`, `\AHEAD\z`, `\A-\z`,
    34  	// A name that looks exactly like a commit id
    35  	`\A[0-9a-v]{32}\z`,
    36  	// Any appearance of ".." or "@{"
    37  	`\.\.`, `@{`,
    38  	// Any empty component; that is, starting or ending with "/" or any appearance of "//"
    39  	`\/\/`, `\A\/`, `\/\z`,
    40  }, "|"))
    41  
    42  func IsValidBranchName(s string) bool {
    43  	return !InvalidBranchNameRegex.MatchString(s)
    44  }