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95 lines
2.7 KiB
95 lines
2.7 KiB
// Copyright 2018 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package git
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import (
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"regexp"
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"strings"
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)
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const (
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// RemotePrefix is the base directory of the remotes information of git.
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RemotePrefix = "refs/remotes/"
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// PullPrefix is the base directory of the pull information of git.
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PullPrefix = "refs/pull/"
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pullLen = len(PullPrefix)
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)
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// refNamePatternInvalid is regular expression with unallowed characters in git reference name
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// They cannot have ASCII control characters (i.e. bytes whose values are lower than \040, or \177 DEL), space, tilde ~, caret ^, or colon : anywhere.
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// They cannot have question-mark ?, asterisk *, or open bracket [ anywhere
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var refNamePatternInvalid = regexp.MustCompile(
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`[\000-\037\177 \\~^:?*[]|` + // No absolutely invalid characters
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`(?:^[/.])|` + // Not HasPrefix("/") or "."
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`(?:/\.)|` + // no "/."
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`(?:\.lock$)|(?:\.lock/)|` + // No ".lock/"" or ".lock" at the end
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`(?:\.\.)|` + // no ".." anywhere
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`(?://)|` + // no "//" anywhere
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`(?:@{)|` + // no "@{"
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`(?:[/.]$)|` + // no terminal '/' or '.'
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`(?:^@$)`) // Not "@"
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// IsValidRefPattern ensures that the provided string could be a valid reference
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func IsValidRefPattern(name string) bool {
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return !refNamePatternInvalid.MatchString(name)
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}
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func SanitizeRefPattern(name string) string {
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return refNamePatternInvalid.ReplaceAllString(name, "_")
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}
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// Reference represents a Git ref.
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type Reference struct {
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Name string
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repo *Repository
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Object SHA1 // The id of this commit object
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Type string
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}
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// Commit return the commit of the reference
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func (ref *Reference) Commit() (*Commit, error) {
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return ref.repo.getCommit(ref.Object)
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}
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// ShortName returns the short name of the reference
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func (ref *Reference) ShortName() string {
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if ref == nil {
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return ""
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}
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if strings.HasPrefix(ref.Name, BranchPrefix) {
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return strings.TrimPrefix(ref.Name, BranchPrefix)
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}
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if strings.HasPrefix(ref.Name, TagPrefix) {
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return strings.TrimPrefix(ref.Name, TagPrefix)
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}
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if strings.HasPrefix(ref.Name, RemotePrefix) {
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return strings.TrimPrefix(ref.Name, RemotePrefix)
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}
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if strings.HasPrefix(ref.Name, PullPrefix) && strings.IndexByte(ref.Name[pullLen:], '/') > -1 {
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return ref.Name[pullLen : strings.IndexByte(ref.Name[pullLen:], '/')+pullLen]
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}
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return ref.Name
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}
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// RefGroup returns the group type of the reference
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func (ref *Reference) RefGroup() string {
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if ref == nil {
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return ""
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}
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if strings.HasPrefix(ref.Name, BranchPrefix) {
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return "heads"
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}
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if strings.HasPrefix(ref.Name, TagPrefix) {
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return "tags"
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}
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if strings.HasPrefix(ref.Name, RemotePrefix) {
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return "remotes"
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}
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if strings.HasPrefix(ref.Name, PullPrefix) && strings.IndexByte(ref.Name[pullLen:], '/') > -1 {
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return "pull"
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}
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return ""
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}
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