feat(diff-viewer): add inline diff computation with line-level and character-level highlights#545

Merged

matt2e merged 14 commits intomainfrom

Mar 30, 2026

Commits on Mar 30, 2026

feat(diff-viewer): add inline diff computation module

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feat(diff-viewer): export inline diff utils and add lookup helpers

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feat(diff-viewer): add CSS variables for modified line highlights

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feat(diff-viewer): render line-level and character-level diff highlights

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fix(diff-viewer): peek ahead in greedy matching to handle insertion offsets

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test(diff-viewer): add comprehensive tests for inline diff and helpers

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fix(diff-viewer): scan ahead past multiple insertions in greedy matching

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test(diff-viewer): add real-world re-indentation test for inline diff

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fix(diff-viewer): use changedAlignments index for inline diff lookups

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fix(diff-viewer): use trimmed lines for similarity to avoid false modified pairs

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fix(diff-viewer): cap scan-ahead to 10 lines and scope cache to component

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fix(diff-viewer): raise similarity threshold to prevent false modified pairs

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fix(diff-viewer): pass cache to helper tests and remove deprecated getLineDiffResult

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fix(branches): prevent concurrent session starts by queuing during pending start

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