github.com/weiwenhao/getter@v1.30.1/get_file_unix.go (about) 1 // +build !windows 2 3 package getter 4 5 import ( 6 "fmt" 7 "net/url" 8 "os" 9 "path/filepath" 10 ) 11 12 func (g *FileGetter) Get(dst string, u *url.URL) error { 13 path := u.Path 14 if u.RawPath != "" { 15 path = u.RawPath 16 } 17 18 // The source path must exist and be a directory to be usable. 19 if fi, err := os.Stat(path); err != nil { 20 return fmt.Errorf("source path error: %s", err) 21 } else if !fi.IsDir() { 22 return fmt.Errorf("source path must be a directory") 23 } 24 25 fi, err := os.Lstat(dst) 26 if err != nil && !os.IsNotExist(err) { 27 return err 28 } 29 30 // If the destination already exists, it must be a symlink 31 if err == nil { 32 mode := fi.Mode() 33 if mode&os.ModeSymlink == 0 { 34 return fmt.Errorf("destination exists and is not a symlink") 35 } 36 37 // Remove the destination 38 if err := os.Remove(dst); err != nil { 39 return err 40 } 41 } 42 43 // Create all the parent directories 44 if err := os.MkdirAll(filepath.Dir(dst), g.client.mode(0755)); err != nil { 45 return err 46 } 47 48 return os.Symlink(path, dst) 49 } 50 51 func (g *FileGetter) GetFile(dst string, u *url.URL) error { 52 ctx := g.Context() 53 path := u.Path 54 if u.RawPath != "" { 55 path = u.RawPath 56 } 57 58 // The source path must exist and be a file to be usable. 59 var fi os.FileInfo 60 var err error 61 if fi, err = os.Stat(path); err != nil { 62 return fmt.Errorf("source path error: %s", err) 63 } else if fi.IsDir() { 64 return fmt.Errorf("source path must be a file") 65 } 66 67 _, err = os.Lstat(dst) 68 if err != nil && !os.IsNotExist(err) { 69 return err 70 } 71 72 // If the destination already exists, it must be a symlink 73 if err == nil { 74 // Remove the destination 75 if err := os.Remove(dst); err != nil { 76 return err 77 } 78 } 79 80 // Create all the parent directories 81 if err = os.MkdirAll(filepath.Dir(dst), g.client.mode(0755)); err != nil { 82 return err 83 } 84 85 // If we're not copying, just symlink and we're done 86 if !g.Copy { 87 return os.Symlink(path, dst) 88 } 89 90 // Copy 91 _, err = copyFile(ctx, dst, path, fi.Mode(), g.client.umask()) 92 return err 93 }