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fix(tui): give inline_diff segments blank-line breathing room

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Visual polish on top of the segment-anchor change: diff blocks were
butting up against the narration around them. Tag diff-only segments
with `kind: 'diff'` (extended on Msg) and give them `marginTop={1}` +
`marginBottom={1}` in MessageLine, matching the spacing we already
use for user messages. Also swaps the regex-based `diffSegmentBody`
check for an explicit `kind === 'diff'` guard so the dedupe path is
clearer.
This commit is contained in:
Brooklyn Nicholson 2026-04-23 19:11:59 -05:00
parent 11b2942f16
commit 2258a181f0
4 changed files with 25 additions and 19 deletions
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15
ui-tui/src/app/turnController.ts
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@ -19,17 +19,16 @@ const INTERRUPT_COOLDOWN_MS = 1500
const ACTIVITY_LIMIT = 8
const TRAIL_LIMIT = 8
// Matches segments produced by pushInlineDiffSegment — a bare ```diff fence
// wrapping the raw patch, no surrounding prose. Used at message.complete to
// dedupe against final assistant text that narrates the same patch.
const DIFF_SEGMENT_RE = /^```diff\n([\s\S]*?)\n```$/
// Extracts the raw patch from a diff-only segment produced by
// pushInlineDiffSegment. Used at message.complete to dedupe against final
// assistant text that narrates the same patch. Returns null for anything
// else so real assistant narration never gets touched.
const diffSegmentBody = (msg: Msg): null | string => {
if (msg.role !== 'assistant' || msg.tools?.length) {
if (msg.kind !== 'diff') {
return null
}
const m = msg.text.match(DIFF_SEGMENT_RE)
const m = msg.text.match(/^```diff\n([\s\S]*?)\n```$/)
return m ? m[1]! : null
}
@ -226,7 +225,7 @@ class TurnController {
return
}
this.segmentMessages = [...this.segmentMessages, { role: 'assistant', text: block }]
this.segmentMessages = [...this.segmentMessages, { kind: 'diff', role: 'assistant', text: block }]
patchTurnState({ streamSegments: this.segmentMessages })
}