perf(core): Optimize chunk merging and avoid redundant string split in grep tool#1303
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perf(core): Optimize chunk merging and avoid redundant string split in grep tool#1303
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #1303 +/- ##
==========================================
+ Coverage 87.10% 87.13% +0.02%
==========================================
Files 115 115
Lines 4358 4367 +9
Branches 1014 1015 +1
==========================================
+ Hits 3796 3805 +9
Misses 562 562 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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…n grep tool
- Replace string += with array accumulation + join('\n') in mergeAdjacentChunks
to avoid O(k²) copying when merging adjacent tree-sitter code chunks
- Extract searchInLines from searchInContent in grepRepomixOutputTool so
performGrepSearch splits content once and reuses the lines array for both
search and formatting, avoiding a redundant O(n) split on large files
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This was referenced Mar 28, 2026
This was referenced Mar 29, 2026
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Summary
Performance optimizations for string operations in tree-sitter parsing and MCP grep tool.
Changes
mergeAdjacentChunks(parseFile.ts): Replacestring +=concatenation with array accumulation +join( )to avoid O(k²) string copying when merging adjacent code chunks.content.split( )(grepRepomixOutputTool.ts): ExtractsearchInLinesfunction that accepts pre-split lines array.performGrepSearchnow splits content once and reuses the array for both search and formatting, avoiding a redundant O(n) split on large output files (3-5MB).Checklist
npm run testnpm run lint