105 lines
1.9 KiB
Go
105 lines
1.9 KiB
Go
package main
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import (
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"context"
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"fmt"
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"go/types"
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"net/url"
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"os"
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"path/filepath"
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"strings"
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"github.com/go-git/go-git/v5"
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"github.com/go-git/go-git/v5/plumbing/filemode"
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"github.com/go-git/go-git/v5/plumbing/object"
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"github.com/go-git/go-git/v5/storage/memory"
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)
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func clone(srcRepo string, dstDir string) error {
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if !strings.HasPrefix(srcRepo, "https://") {
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srcRepo = "https://" + srcRepo
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}
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u, err := url.Parse(srcRepo)
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if err != nil {
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return err
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}
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var rev string
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if idx := strings.Index(u.Path, "@"); idx > 0 {
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rev = u.Path[idx+1:]
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}
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cloneOpts := &git.CloneOptions{
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URL: srcRepo,
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// Progress: os.Stdout,
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}
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if len(rev) == 0 {
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cloneOpts.SingleBranch = true
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cloneOpts.Depth = 1
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}
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if err := cloneOpts.Validate(); err != nil {
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return err
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}
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repo, err := git.CloneContext(context.Background(), memory.NewStorage(), nil, cloneOpts)
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if err != nil {
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return err
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}
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ref, err := repo.Head()
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if err != nil {
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return err
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}
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commit, err := repo.CommitObject(ref.Hash())
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if err != nil {
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return err
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}
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tree, err := commit.Tree()
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if err != nil {
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return err
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}
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if err := os.MkdirAll(dstDir, os.FileMode(0755)); err != nil {
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return err
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}
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if err := cleanDir(dstDir); err != nil {
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return err
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}
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err = tree.Files().ForEach(func(file *object.File) error {
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if file == nil {
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return types.Error{Msg: "file pointer is empty"}
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}
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fmode, err := file.Mode.ToOSFileMode()
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if err != nil {
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return err
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}
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switch file.Mode {
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case filemode.Executable:
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return writeFile(file, dstDir, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, fmode)
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case filemode.Dir:
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return os.MkdirAll(filepath.Join(dstDir, file.Name), fmode)
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case filemode.Regular:
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return writeFile(file, dstDir, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, fmode)
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default:
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return fmt.Errorf("unsupported filetype %v for %s", file.Mode, file.Name)
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}
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return nil
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})
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if err != nil {
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return err
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}
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return nil
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}
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