Prepare creates temporary directory, copies file there and verifies checksums
()
| 114 | |
| 115 | // Prepare creates temporary directory, copies file there and verifies checksums |
| 116 | func (c *Changes) Prepare() error { |
| 117 | var err error |
| 118 | |
| 119 | for _, file := range c.Files { |
| 120 | if filepath.Dir(file.Filename) != "." { |
| 121 | return fmt.Errorf("file is not in the same folder as .changes file: %s", file.Filename) |
| 122 | } |
| 123 | |
| 124 | file.Filename = filepath.Base(file.Filename) |
| 125 | |
| 126 | err = utils.CopyFile(filepath.Join(c.BasePath, file.Filename), filepath.Join(c.TempDir, file.Filename)) |
| 127 | if err != nil { |
| 128 | return err |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | for _, file := range c.Files { |
| 133 | var info utils.ChecksumInfo |
| 134 | |
| 135 | info, err = utils.ChecksumsForFile(filepath.Join(c.TempDir, file.Filename)) |
| 136 | if err != nil { |
| 137 | return err |
| 138 | } |
| 139 | |
| 140 | if info.Size != file.Checksums.Size { |
| 141 | return fmt.Errorf("size mismatch: expected %v != obtained %v", file.Checksums.Size, info.Size) |
| 142 | } |
| 143 | |
| 144 | if info.MD5 != file.Checksums.MD5 { |
| 145 | return fmt.Errorf("checksum mismatch MD5: expected %v != obtained %v", file.Checksums.MD5, info.MD5) |
| 146 | } |
| 147 | |
| 148 | if info.SHA1 != file.Checksums.SHA1 { |
| 149 | return fmt.Errorf("checksum mismatch SHA1: expected %v != obtained %v", file.Checksums.SHA1, info.SHA1) |
| 150 | } |
| 151 | |
| 152 | if info.SHA256 != file.Checksums.SHA256 { |
| 153 | return fmt.Errorf("checksum mismatch SHA256 expected %v != obtained %v", file.Checksums.SHA256, info.SHA256) |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | return nil |
| 158 | } |
| 159 | |
| 160 | // Cleanup removes all temporary files |
| 161 | func (c *Changes) Cleanup() error { |