gitea/modules/git/pipeline/revlist.go

48 lines
1.1 KiB
Go

// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package pipeline
import (
"bufio"
"context"
"io"
"strings"
"code.gitea.io/gitea/modules/git/gitcmd"
)
// RevListObjects run rev-list --objects from headSHA to baseSHA
func RevListObjects(ctx context.Context, cmd *gitcmd.Command, tmpBasePath, headSHA, baseSHA string) error {
cmd.AddArguments("rev-list", "--objects").AddDynamicArguments(headSHA)
if baseSHA != "" {
cmd = cmd.AddArguments("--not").AddDynamicArguments(baseSHA)
}
return cmd.WithDir(tmpBasePath).RunWithStderr(ctx)
}
// BlobsFromRevListObjects reads a RevListAllObjects and only selects blobs
func BlobsFromRevListObjects(in io.ReadCloser, out io.WriteCloser) error {
defer out.Close()
scanner := bufio.NewScanner(in)
for scanner.Scan() {
line := scanner.Text()
if len(line) == 0 {
continue
}
fields := strings.Split(line, " ")
if len(fields) < 2 || len(fields[1]) == 0 {
continue
}
toWrite := []byte(fields[0] + "\n")
for len(toWrite) > 0 {
n, err := out.Write(toWrite)
if err != nil {
return err
}
toWrite = toWrite[n:]
}
}
return scanner.Err()
}