gitea_hat/modules/git/repo_branch_nogogit.go

125 lines
2.9 KiB
Go

package git
import (
"bufio"
"context"
"fmt"
"io"
"strings"
gitea_git "code.gitea.io/gitea/modules/git"
)
func GetSearchBranches(ctx context.Context, repo *gitea_git.Repository, search string, skip, limit int) ([]*gitea_git.Branch, int, error) {
brs, countAll, err := callShowSearchRef(ctx, repo.Path, gitea_git.BranchPrefix, "--heads", search, skip, limit)
if err != nil {
return nil, 0, err
}
branches := make([]*gitea_git.Branch, len(brs))
for i := range brs {
branches[i] = &gitea_git.Branch{
Name: brs[i],
Path: repo.Path,
}
}
return branches, countAll, nil
}
func callShowSearchRef(ctx context.Context, repoPath, prefix, arg, search string, skip, limit int) (branchNames []string, countAll int, err error) {
stdoutReader, stdoutWriter := io.Pipe()
defer func() {
_ = stdoutReader.Close()
_ = stdoutWriter.Close()
}()
go func() {
stderrBuilder := &strings.Builder{}
err := gitea_git.NewCommand(ctx, "show-ref").AddDynamicArguments(arg).
Run(&gitea_git.RunOpts{
Dir: repoPath,
Stdout: stdoutWriter,
Stderr: stderrBuilder,
})
if err != nil {
if stderrBuilder.Len() == 0 {
_ = stdoutWriter.Close()
return
}
_ = stdoutWriter.CloseWithError(ConcatenateError(err, stderrBuilder.String()))
} else {
_ = stdoutWriter.Close()
}
}()
i := 0
bufReader := bufio.NewReader(stdoutReader)
for i < skip {
line, isPrefix, err := bufReader.ReadLine()
if err == io.EOF {
return branchNames, i, nil
}
if err != nil {
return nil, 0, err
}
branchName := strings.TrimPrefix(strings.Split(string(line), " ")[1], prefix)
if len(branchName) > 0 {
branchName = branchName[:len(branchName)-1]
}
isSeached := strings.Contains(branchName, search)
if !isPrefix && isSeached {
i++
}
}
for limit == 0 || i < skip+limit {
branchName, err := bufReader.ReadString('\n')
if err == io.EOF {
// This shouldn't happen... but we'll tolerate it for the sake of peace
return branchNames, i, nil
}
if err != nil {
return nil, i, err
}
branchName = strings.TrimPrefix(strings.Split(string(branchName), " ")[1], prefix)
if len(branchName) > 0 {
branchName = branchName[:len(branchName)-1]
}
isSeached := strings.Contains(branchName, search)
if isSeached {
i++
branchNames = append(branchNames, branchName)
}
}
// count all refs
for limit != 0 {
line, isPrefix, err := bufReader.ReadLine()
if err == io.EOF {
return branchNames, i, nil
}
if err != nil {
return nil, 0, err
}
branchName := strings.TrimPrefix(strings.Split(string(line), " ")[1], prefix)
if len(branchName) > 0 {
branchName = branchName[:len(branchName)-1]
}
isSeached := strings.Contains(branchName, search)
if !isPrefix && isSeached {
i++
}
}
return branchNames, i, nil
}
func ConcatenateError(err error, stderr string) error {
if len(stderr) == 0 {
return err
}
return fmt.Errorf("%w - %s", err, stderr)
}