83 lines
2.0 KiB
Go
83 lines
2.0 KiB
Go
// Copyright 2015 The Gogs Authors. All rights reserved.
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// Copyright 2018 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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// +build !gogit
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package git
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import (
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"bufio"
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"io"
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"strings"
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)
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// IsBranchExist returns true if given branch exists in current repository.
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func (repo *Repository) IsBranchExist(name string) bool {
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if name == "" {
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return false
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}
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return IsReferenceExist(repo.Path, BranchPrefix+name)
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}
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// GetBranches returns all branches of the repository.
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func (repo *Repository) GetBranches() ([]string, error) {
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return callShowRef(repo.Path, BranchPrefix, "--heads")
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}
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func callShowRef(repoPath, prefix, arg string) ([]string, error) {
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var branchNames []string
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stdoutReader, stdoutWriter := io.Pipe()
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defer func() {
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_ = stdoutReader.Close()
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_ = stdoutWriter.Close()
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}()
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go func() {
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stderrBuilder := &strings.Builder{}
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err := NewCommand("show-ref", arg).RunInDirPipeline(repoPath, stdoutWriter, stderrBuilder)
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if err != nil {
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if stderrBuilder.Len() == 0 {
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_ = stdoutWriter.Close()
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return
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}
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_ = stdoutWriter.CloseWithError(ConcatenateError(err, stderrBuilder.String()))
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} else {
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_ = stdoutWriter.Close()
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}
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}()
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bufReader := bufio.NewReader(stdoutReader)
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for {
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// The output of show-ref is simply a list:
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// <sha> SP <ref> LF
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_, err := bufReader.ReadSlice(' ')
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for err == bufio.ErrBufferFull {
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// This shouldn't happen but we'll tolerate it for the sake of peace
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_, err = bufReader.ReadSlice(' ')
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}
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if err == io.EOF {
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return branchNames, nil
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}
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if err != nil {
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return nil, err
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}
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branchName, err := bufReader.ReadString('\n')
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if err == io.EOF {
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// This shouldn't happen... but we'll tolerate it for the sake of peace
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return branchNames, nil
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}
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if err != nil {
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return nil, err
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}
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branchName = strings.TrimPrefix(branchName, prefix)
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if len(branchName) > 0 {
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branchName = branchName[:len(branchName)-1]
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}
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branchNames = append(branchNames, branchName)
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}
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}
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