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fix: show revision-aware blame in diff buffers

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Diff and snapshot sources were excluded before scheduling, and the separate diff renderer never painted attribution. Capture per-side Git provenance, preserve private object stores for historical tabs, and reuse the current-line worker and cache.
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Valdemar Lorenzen
2026-10-20 11:47:49 +02:00
parent 8f8d96ead9
commit 4fb1be7972
16 changed files with 819 additions and 91 deletions
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docs/editing.md
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@@ -258,9 +258,9 @@ Text wraps at word boundaries where possible, with grapheme-safe breaks for long
## Current-line Git blame
Inline blame is enabled by default in ordinary live file buffers. The primary caret's line shows its author, commit summary, and short commit ID after the document text; changed or newly inserted tracked-file lines show **Uncommitted**, including unsaved edits. Git-backed jj repositories use the working-copy revision's single parent, not a potentially stale Git HEAD. Merge working copies with multiple parents omit attribution.
Inline blame is enabled by default in live file buffers and on the focused side of split/unified diffs. The primary caret's line shows its author, commit summary, and short commit ID after the document text; changed or newly inserted tracked-file lines show **Uncommitted**, including unsaved edits. Live Git-backed jj buffers use the working-copy revision's single parent, not a potentially stale Git HEAD. Merge working copies with multiple parents omit live attribution.
Loading happens in the background without network access or changing repository refs/checkouts. Attribution is loaded once for the active buffer's in-memory contents; navigation then selects cached lines immediately, and movement during a cold load does not restart it. Editing, saving, reloading, changing source buffers, regaining terminal focus, or toggling blame invalidates the cached attribution. Missing, untracked, unborn, and non-repository files have no indicator; immutable historical buffers and comparison views do not receive live-file attribution. The indicator is hidden when the caret is offscreen or the full label cannot fit; wrapped lines use their final visible continuation without covering text, selections, or the caret. Popups retain their normal layering.
Loading happens in the background without network access or changing repository refs/checkouts. Attribution is loaded once for the active buffer's in-memory contents; navigation then selects cached lines immediately, and movement during a cold load does not restart it. Editing, saving, reloading, changing source buffers, regaining terminal focus, or toggling blame invalidates the cached attribution. Historical sides use their captured commit and side-specific path, including renamed or deleted files no longer on disk; historical tabs retain that source and any privately fetched objects after the comparison closes. Frozen Working sides use their captured parent baseline rather than a later checkout. Missing, untracked, unborn, and non-repository live files have no indicator. The indicator is hidden when the caret is offscreen or the full label cannot fit; wrapped lines use their final visible continuation without covering text, selections, or the caret. Popups retain their normal layering.
Use `:git_blame.toggle`, the palette action, or remappable `config.core.git_blame.toggle`; there is no default keybinding. Set `config.git_blame = false` to disable it at startup. Disabling stops the worker and clears the label without changing text or undo history.