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repo.go
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repo.go
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//go:build !ignore_autogenerated
// +build !ignore_autogenerated
package v1
import (
"archive/tar"
"compress/gzip"
"context"
"fmt"
"io"
"os"
"os/exec"
"path/filepath"
"strings"
"github.com/go-git/go-git/v5"
"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/transport"
"github.com/go-git/go-git/v5/plumbing/transport/http"
)
type RepositoryManager struct {
repos []RepositorySpec
tokenMgr *TokenManager
clonedPaths map[string]string
archivePaths map[string]string
}
func NewRepositoryManager(repos []RepositorySpec, tokenMgr *TokenManager) *RepositoryManager {
return &RepositoryManager{
repos: repos,
tokenMgr: tokenMgr,
clonedPaths: map[string]string{},
archivePaths: map[string]string{},
}
}
func (m *RepositoryManager) Cleanup() error {
errs := []string{}
for name, clonedPath := range m.clonedPaths {
if err := os.RemoveAll(clonedPath); err != nil {
errs = append(errs, fmt.Sprintf("failed to remove %s repository directory: %s", name, err.Error()))
}
}
for name, archivePath := range m.archivePaths {
if err := os.RemoveAll(archivePath); err != nil {
errs = append(errs, fmt.Sprintf("failed to remove %s repository archive directory: %s", name, err.Error()))
}
}
if len(errs) > 0 {
return fmt.Errorf("kubetest: failed to cleanup %s", strings.Join(errs, ":"))
}
return nil
}
func (m *RepositoryManager) CloneAll(ctx context.Context) error {
for _, repo := range m.repos {
var repoDir string
if repo.Value.ClonedPath != "" {
dir := repo.Value.ClonedPath
if !existsDir(dir) {
if err := m.clone(ctx, dir, repo.Value); err != nil {
return err
}
} else {
LoggerFromContext(ctx).Info("reuse an already cloned directory: %s", dir)
}
repoDir = dir
} else {
dir, err := os.MkdirTemp("", "repo")
if err != nil {
return fmt.Errorf("kubetest: failed to create temporary directory for repository: %w", err)
}
if err := m.clone(ctx, dir, repo.Value); err != nil {
return err
}
repoDir = dir
}
repoArchiveDir, err := os.MkdirTemp("", "repo-archive")
if err != nil {
return fmt.Errorf("kubetest: failed to create temporary directory for repository archive: %w", err)
}
repoArchivePath := filepath.Join(repoArchiveDir, "repo.tar.gz")
if err := m.archiveRepo(repoDir, repoArchivePath); err != nil {
return err
}
m.archivePaths[repo.Name] = repoArchivePath
m.clonedPaths[repo.Name] = repoDir
}
return nil
}
func (m *RepositoryManager) clone(ctx context.Context, clonedPath string, repo Repository) error {
LoggerFromContext(ctx).Info("clone repository: %s", repo.URL)
const (
defaultBaseBranchName = "master"
defaultRemoteName = "origin"
)
if err := os.MkdirAll(clonedPath, 0o755); err != nil {
return fmt.Errorf("kubetest: failed to create directory %s for repository: %w", clonedPath, err)
}
var auth transport.AuthMethod
if repo.Token != "" {
token, err := m.tokenMgr.TokenByName(ctx, repo.Token)
if err != nil {
return err
}
auth = &http.BasicAuth{
Username: "x-access-token",
Password: token.Value,
}
}
gitRepo, err := git.PlainCloneContext(ctx, clonedPath, false, &git.CloneOptions{
URL: repo.URL,
Auth: auth,
})
if err != nil {
return fmt.Errorf("kubetest: failed to clone repository: %w", err)
}
cfg, err := gitRepo.Config()
if err != nil {
return fmt.Errorf("kubetest: failed to get repository config: %w", err)
}
var remote string
if len(cfg.Remotes) == 1 {
for name := range cfg.Remotes {
remote = name
break
}
} else {
remote = defaultRemoteName
}
var baseBranch string
if cfg.Init.DefaultBranch != "" {
baseBranch = cfg.Init.DefaultBranch
} else if len(cfg.Branches) == 1 {
for name := range cfg.Branches {
baseBranch = name
break
}
} else {
baseBranch = defaultBaseBranchName
}
tree, err := gitRepo.Worktree()
if err != nil {
return fmt.Errorf("kubetest: failed to get worktree from repository: %w", err)
}
checkoutOpt := &git.CheckoutOptions{
Force: true,
}
switch {
case repo.Branch != "":
checkoutOpt.Branch = plumbing.NewRemoteReferenceName(remote, repo.Branch)
case repo.Rev != "":
checkoutOpt.Create = true
checkoutOpt.Branch = plumbing.NewBranchReferenceName(repo.Rev)
checkoutOpt.Hash = plumbing.NewHash(repo.Rev)
}
if err := checkoutOpt.Validate(); err != nil {
return fmt.Errorf("kubetest: invalid checkout option: %w", err)
}
if err := tree.Checkout(checkoutOpt); err != nil {
return fmt.Errorf("kubetest: failed to checkout: %w", err)
}
status, err := tree.Status()
if err != nil {
return fmt.Errorf("kubetest: failed to get repository status: %w", err)
}
if !status.IsClean() {
// may be a bug of go-git
head, err := gitRepo.Head()
if err != nil {
return fmt.Errorf("kubetest: failed to get HEAD hash: %w", err)
}
if err := tree.Reset(&git.ResetOptions{
Commit: head.Hash(),
Mode: git.HardReset,
}); err != nil {
return fmt.Errorf("kubetest: failed to reset repository: %w", err)
}
}
if repo.Merge != nil {
if repo.Merge.Base != "" {
baseBranch = repo.Merge.Base
}
if cfg.User.Name == "" || cfg.User.Email == "" {
cfg.User.Name = "kubetest"
cfg.User.Email = "user@kubetest.com"
LoggerFromContext(ctx).Debug(
"set git config: user.name=%s and user.email=%s",
cfg.User.Name,
cfg.User.Email,
)
if err := gitRepo.SetConfig(cfg); err != nil {
return fmt.Errorf("kubetest: failed to set git config: user.name and user.email: %w", err)
}
}
// we'd like to use '--ff' strategy ( merge's default behavior ).
// go-git doesn't support yet, so we use git client command.
LoggerFromContext(ctx).Info("merge base branch: git pull %s %s", remote, baseBranch)
cmd := exec.Command("git", "pull", remote, baseBranch)
cmd.Dir = clonedPath
out, err := cmd.CombinedOutput()
if err != nil {
return fmt.Errorf("kubetest: failed to merge base branch %s: %w", string(out), err)
}
LoggerFromContext(ctx).Debug(string(out))
}
return nil
}
func (m *RepositoryManager) archiveRepo(repoDir, archivePath string) error {
dst, err := os.Create(archivePath)
if err != nil {
return fmt.Errorf("kubetest: failed to create archive file for repository: %w", err)
}
defer dst.Close()
gzw, err := gzip.NewWriterLevel(dst, gzip.BestCompression)
if err != nil {
return fmt.Errorf("kubetest: failed to create gzip writer: %w", err)
}
defer gzw.Close()
tw := tar.NewWriter(gzw)
defer tw.Close()
return filepath.Walk(repoDir, func(path string, info os.FileInfo, err error) error {
if err != nil {
return fmt.Errorf("kubetest: failed to create archive file for repository: %w", err)
}
if info.IsDir() {
return nil
}
name := path[len(repoDir)+1:]
switch {
case info.Mode()&os.ModeSymlink == os.ModeSymlink:
linkName, err := os.Readlink(path)
if err != nil {
return fmt.Errorf("kubetest: failed to read symlink file: %s: %w", path, err)
}
hdr, err := tar.FileInfoHeader(info, linkName)
if err != nil {
return fmt.Errorf("kubetest: failed to get header from symlink file name: %s: %w", linkName, err)
}
hdr.Name = name
hdr.Linkname = linkName
if err := tw.WriteHeader(hdr); err != nil {
return fmt.Errorf("kubetest: failed to write tar header for symlink: %w", err)
}
default:
if err := tw.WriteHeader(&tar.Header{
Name: name,
Mode: int64(info.Mode()),
ModTime: info.ModTime(),
Size: info.Size(),
}); err != nil {
return fmt.Errorf("kubetest: failed to write archive header to create archive file for repository: %w", err)
}
f, err := os.Open(path)
if err != nil {
return fmt.Errorf("kubetest: failed to open local file to create archive file for repository: %w", err)
}
defer f.Close()
if _, err := io.Copy(tw, f); err != nil {
return fmt.Errorf("kubetest: failed to copy local file to archive file for repository: %w", err)
}
}
return nil
})
}
func (m *RepositoryManager) ArchivePathByRepoName(name string) (string, error) {
path, exists := m.archivePaths[name]
if !exists {
return "", fmt.Errorf("kubetest: repository name %s is undefined", name)
}
return path, nil
}