adding git_repo variable

book/src/commands.md

@@ -10,13 +10,14 @@ Helix provides several variables that can be used when typing commands or creati
 | Variable              | Description |
 | ---                   | ---                      |
 | `%{basename}`         | The name and extension of the currently focused file. |
+| `%{dirname}`          | The absolute path of the parent directory of the currently focused file. |
+| `%{cwd}`              | The absolute path of the current working directory of Helix. |
+| `%{git_repo}`         | The absolute path of the git repository helix is opened in. Fallback to `cwd` if not inside a git repository|
 | `%{filename}`         | The absolute path of the currently focused file. |
-| `%{filename:rel}`     | The relative path of the file according to the current working directory (will give absolute path if the file is not a child of the current working directory) |
+| `%{filename:rel}`     | The relative path of the file according to `cwd` (will give absolute path if the file is not a child of the current working directory) |
-| `%{filename:git_rel}` | The relative path of the file according to the git repo, or current working directory if not inside a git repo. (will give absolute path if the file is not a child of the git directory or the cwd) |
+| `%{filename:git_rel}` | The relative path of the file according to `git_repo` (will give absolute path if the file is not a child of the git directory or the cwd) |
 | `%{ext}`              | The extension of the current file |
 | `%{lang}`             | The language of the current file   |
-| `%{dirname}`          | The absolute path of the parent directory of the currently focused file. |
-| `%{cwd}`              | The absolute path of the current working directory of Helix. |
 | `%{linenumber}`       | The line number where the primary cursor is positioned. |
 | `%{cursorcolumn}`     | The position of the primary cursor inside the current line. |
 | `%{selection}`        | The text selected by the primary cursor. |

helix-view/src/editor/variable_expansion.rs

@@ -78,6 +78,11 @@ impl Editor {
                                             .and_then(std::path::Path::to_str)
                                             .unwrap_or(crate::document::SCRATCH_BUFFER_NAME)
                                             .to_owned(),
+                                        "git_repo" => helix_loader::find_workspace()
+                                            .0
+                                            .to_str()
+                                            .unwrap_or("")
+                                            .to_owned(),
                                         "cwd" => helix_stdx::env::current_working_dir()
                                             .to_str()
                                             .unwrap()