| 105 | } |
| 106 | |
| 107 | func (c Command) sync(dependency kptfile.Dependency) error { |
| 108 | path := filepath.Join(c.Dir, dependency.Name) |
| 109 | f, err := os.Stat(path) |
| 110 | |
| 111 | // dep missing |
| 112 | if os.IsNotExist(err) { |
| 113 | if dependency.EnsureNotExists { |
| 114 | // dep already deleted -- no action required |
| 115 | return nil |
| 116 | } |
| 117 | // fetch the dep |
| 118 | return c.get(dependency) |
| 119 | } |
| 120 | if err != nil { |
| 121 | return errors.Wrap(err) |
| 122 | } |
| 123 | |
| 124 | // verify the dep is well formed |
| 125 | if !f.IsDir() { |
| 126 | // place where dep should be fetched exists and is not a directory |
| 127 | return errors.Errorf("cannot sync to %q, non-directory file exists", path) |
| 128 | } |
| 129 | _, err = os.Stat(filepath.Join(path, kptfile.KptFileName)) |
| 130 | if os.IsNotExist(err) { |
| 131 | // dep doesn't have a Kptfile -- something is wrong |
| 132 | return errors.Errorf("expected Kptfile under dependency %q", path) |
| 133 | } |
| 134 | if err != nil { |
| 135 | return errors.Wrap(err) |
| 136 | } |
| 137 | |
| 138 | // delete the dep -- it exists |
| 139 | if dependency.EnsureNotExists { |
| 140 | return c.delete(dependency) |
| 141 | } |
| 142 | |
| 143 | // read the Kptfile |
| 144 | b, err := ioutil.ReadFile(filepath.Join(path, kptfile.KptFileName)) |
| 145 | if err != nil { |
| 146 | return errors.Wrap(err) |
| 147 | } |
| 148 | k := &kptfile.KptFile{} |
| 149 | if err = yaml.Unmarshal(b, k); err != nil { |
| 150 | return errors.Wrap(err) |
| 151 | } |
| 152 | |
| 153 | return c.update(dependency, k) |
| 154 | } |
| 155 | |
| 156 | // get fetches the dependency |
| 157 | func (c Command) get(dependency kptfile.Dependency) error { |