forked from gitea/gitea
88 lines
1.8 KiB
Go
88 lines
1.8 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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//go: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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// GetRefsFiltered returns all references of the repository that matches patterm exactly or starting with.
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func (repo *Repository) GetRefsFiltered(pattern string) ([]*Reference, error) {
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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(repo.Ctx, "for-each-ref").Run(&RunOpts{
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Dir: repo.Path,
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Stdout: stdoutWriter,
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Stderr: stderrBuilder,
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})
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if err != nil {
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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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refs := make([]*Reference, 0)
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bufReader := bufio.NewReader(stdoutReader)
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for {
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// The output of for-each-ref is simply a list:
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// <sha> SP <type> TAB <ref> LF
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sha, err := bufReader.ReadString(' ')
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if err == io.EOF {
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break
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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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sha = sha[:len(sha)-1]
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typ, err := bufReader.ReadString('\t')
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if err == io.EOF {
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// This should not happen, but we'll tolerate it
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break
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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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typ = typ[:len(typ)-1]
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refName, err := bufReader.ReadString('\n')
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if err == io.EOF {
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// This should not happen, but we'll tolerate it
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break
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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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refName = refName[:len(refName)-1]
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// refName cannot be HEAD but can be remotes or stash
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if strings.HasPrefix(refName, RemotePrefix) || refName == "/refs/stash" {
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continue
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}
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if pattern == "" || strings.HasPrefix(refName, pattern) {
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r := &Reference{
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Name: refName,
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Object: MustIDFromString(sha),
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Type: typ,
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repo: repo,
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}
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refs = append(refs, r)
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}
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}
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return refs, nil
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}
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