add 'file-absolute-path' to statusline (#4535)

* feat: add 'file-abs-path' to statusline (#4434)

* cleanup implementation

* rename to be non-abbreviated names

---------

Co-authored-by: Michael Davis <mcarsondavis@gmail.com>

book/src/configuration.md

@@ -108,6 +108,7 @@ The following statusline elements can be configured:
 | `mode` | The current editor mode (`mode.normal`/`mode.insert`/`mode.select`) |
 | `spinner` | A progress spinner indicating LSP activity |
 | `file-name` | The path/name of the opened file |
+| `file-absolute-path` | The absolute path/name of the opened file |
 | `file-base-name` | The basename of the opened file |
 | `file-modification-indicator` | The indicator to show whether the file is modified (a `[+]` appears when there are unsaved changes) |
 | `file-encoding` | The encoding of the opened file if it differs from UTF-8 |

helix-term/src/ui/statusline.rs

@@ -142,6 +142,7 @@ where
         helix_view::editor::StatusLineElement::Spinner => render_lsp_spinner,
         helix_view::editor::StatusLineElement::FileBaseName => render_file_base_name,
         helix_view::editor::StatusLineElement::FileName => render_file_name,
+        helix_view::editor::StatusLineElement::FileAbsolutePath => render_file_absolute_path,
         helix_view::editor::StatusLineElement::FileModificationIndicator => {
             render_file_modification_indicator
         }
@@ -430,6 +431,22 @@ where
     write(context, title, None);
 }
 
+fn render_file_absolute_path<F>(context: &mut RenderContext, write: F)
+where
+    F: Fn(&mut RenderContext, String, Option<Style>) + Copy,
+{
+    let title = {
+        let path = context.doc.path();
+        let path = path
+            .as_ref()
+            .map(|p| p.to_string_lossy())
+            .unwrap_or_else(|| SCRATCH_BUFFER_NAME.into());
+        format!(" {} ", path)
+    };
+
+    write(context, title, None);
+}
+
 fn render_file_modification_indicator<F>(context: &mut RenderContext, write: F)
 where
     F: Fn(&mut RenderContext, String, Option<Style>) + Copy,

helix-view/src/editor.rs

@@ -487,6 +487,9 @@ pub enum StatusLineElement {
     /// The relative file path
     FileName,
 
+    /// The file absolute path
+    FileAbsolutePath,
+
     // The file modification indicator
     FileModificationIndicator,