fix(app): deduplicate diff summaries linearly (#37414)

2026-07-17 02:06:38 +00:00
parent 4436678f7d
commit 3a1c6df9e2
3 changed files with 65 additions and 13 deletions
@@ -0,0 +1,20 @@
+import type { SnapshotFileDiff } from "@opencode-ai/sdk/v2"
+import type { SummaryDiff } from "./timeline-row"
+
+export function uniqueSummaryDiffs(diffs: SnapshotFileDiff[] | undefined) {
+  const files = new Set<string>()
+  return (diffs ?? [])
+    .reduceRight<SummaryDiff[]>((result, diff) => {
+      if (!isSummaryDiff(diff)) return result
+      const file = diff.file
+      if (files.has(file)) return result
+      files.add(file)
+      result.push(diff)
+      return result
+    }, [])
+    .reverse()
+}
+
+function isSummaryDiff(diff: SnapshotFileDiff): diff is SummaryDiff {
+  return typeof diff.file === "string"
+}