feat(panel): support auto-fitting panel width to content#42
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dlyongemallo merged 1 commit intomainfrom Mar 15, 2026
Merged
feat(panel): support auto-fitting panel width to content#42dlyongemallo merged 1 commit intomainfrom
dlyongemallo merged 1 commit intomainfrom
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Pull request overview
Adds support for win_config.width = "auto" so split-based panels (notably the file panel and file history panel) can dynamically size their width to the rendered buffer content.
Changes:
- Extend
Panelsplit config validation to acceptwidth = "auto"and implement auto-width computation based on rendered buffer line widths. - Trigger resizing after applying window-local options on open, and after rendering on redraw.
- Document the new
"auto"option in defaults/docs/README and add functional tests around config validation and width computation.
Reviewed changes
Copilot reviewed 5 out of 5 changed files in this pull request and generated 5 comments.
Show a summary per file
| File | Description |
|---|---|
| lua/diffview/ui/panel.lua | Implements "auto" width validation, content-width computation, and resize behavior changes. |
| lua/diffview/tests/functional/panel_spec.lua | Adds tests for accepting/rejecting width values and for content-width calculation. |
| doc/diffview_defaults.txt | Mentions "auto" as an option for the default file panel width setting. |
| doc/diffview.txt | Documents {width} as `(integer |
| README.md | Notes "auto" usage in the setup example comment. |
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Allow `win_config.width = "auto"` so the file panel (and file history panel) dynamically sizes itself to fit all displayed content instead of using a fixed column count.
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Allow
win_config.width = "auto"so the file panel (and file history panel) dynamically sizes itself to fit all displayed content instead of using a fixed column count.