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// Copyright 2020 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
//go:build !gogit
// +build !gogit
package git
import (
"bufio"
"io"
"strings"
)
// GetRefsFiltered returns all references of the repository that matches patterm exactly or starting with.
func (repo *Repository) GetRefsFiltered(pattern string) ([]*Reference, error) {
stdoutReader, stdoutWriter := io.Pipe()
defer func() {
_ = stdoutReader.Close()
_ = stdoutWriter.Close()
}()
go func() {
stderrBuilder := &strings.Builder{}
err := NewCommand("for-each-ref").RunInDirPipeline(repo.Path, stdoutWriter, stderrBuilder)
if err != nil {
_ = stdoutWriter.CloseWithError(ConcatenateError(err, stderrBuilder.String()))
} else {
_ = stdoutWriter.Close()
}
}()
refs := make([]*Reference, 0)
bufReader := bufio.NewReader(stdoutReader)
for {
// The output of for-each-ref is simply a list:
// <sha> SP <type> TAB <ref> LF
sha, err := bufReader.ReadString(' ')
if err == io.EOF {
break
}
if err != nil {
return nil, err
}
sha = sha[:len(sha)-1]
typ, err := bufReader.ReadString('\t')
if err == io.EOF {
// This should not happen, but we'll tolerate it
break
}
if err != nil {
return nil, err
}
typ = typ[:len(typ)-1]
refName, err := bufReader.ReadString('\n')
if err == io.EOF {
// This should not happen, but we'll tolerate it
break
}
if err != nil {
return nil, err
}
refName = refName[:len(refName)-1]
// refName cannot be HEAD but can be remotes or stash
if strings.HasPrefix(refName, "/refs/remotes/") || refName == "/refs/stash" {
continue
}
if pattern == "" || strings.HasPrefix(refName, pattern) {
r := &Reference{
Name: refName,
Object: MustIDFromString(sha),
Type: typ,
repo: repo,
}
refs = append(refs, r)
}
}
return refs, nil
}
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