| 1 | attr.tree:: |
| 2 | A reference to a tree in the repository from which to read attributes, |
| 3 | instead of the `.gitattributes` file in the working tree. If the value |
| 4 | does not resolve to a valid tree object, an empty tree is used instead. |
| 5 | When the `GIT_ATTR_SOURCE` environment variable or `--attr-source` |
| 6 | command line option are used, this configuration variable has no effect. |