⚡ Bolt: [성능 개선] 파일 시스템 I/O 최소화 및 루프 최적화

[seonghobae]

💡 What:

1. process_dir의 디렉토리 파일 순회 시, 비용이 저렴한 제외 목록(exclude) 확인을 먼저 수행하도록 조건문을 변경하고, toPath() 객체 생성 및 Files.isDirectory 호출 등 비싼 파일 시스템 I/O 작업을 단락(short-circuit) 처리했습니다.
2. process_ignore_file에서 정렬이 필요 없는 Set 저장 작업에 사용되던 .sorted()를 제거하고, 매칭되는 정규식을 찾았을 때 추가 비교를 중단하는 break를 추가했습니다.

🎯 Why:
Kotlin/Java에서 java.nio.file.Files를 통해 파일 속성을 조회하는 작업은 무거운 네이티브 OS 호출과 객체 할당을 수반합니다. 기존 코드에서는 제외될 파일임에도 불구하고 모든 파일에 대해 이 비싼 I/O 작업을 먼저 수행하는 병목이 있었습니다.

📊 Impact:
대규모 디렉토리를 처리할 때 불필요한 디스크 I/O 호출 및 Path 객체 생성 비용이 제외 목록 비율에 비례하여 감소하며, 파일 제외 처리 단계에서 불필요한 정렬 O(N log N) 비용과 전체 정규식 탐색을 줄여 성능 향상을 가져옵니다.

🔬 Measurement:
테스트 커버리지 100% 유지를 확인했으며, 기존의 모든 기능이 동일하게 동작합니다. 빌드 스크립트(export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64 && ./gradlew clean test jacocoTestReport jacocoTestCoverageVerification --continue)를 통해 회귀 이슈가 없음을 검증할 수 있습니다.

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PR created automatically by Jules for task 4569824618416964702 started by @seonghobae

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[opencode-agent]

OpenCode Review Overview

• Head SHA: eaeb90931e5fa95cd2243109d6593a64041f76bf
• Workflow run: 29151401483
• Workflow attempt: 1
• Gate result: REQUEST_CHANGES (approval step)

Pull request overview

OpenCode reviewed the current-head mergeability evidence and changed-file flow before approval, then found merge conflicts on the affected path.

Findings

1. HIGH Merge Conflict Guidance - Resolve the PR branch against the latest base branch

• Problem: GitHub reports mergeStateStatus DIRTY for this pull request.
• Root cause: Branch bolt-optimize-io-ops-4569824618416964702 cannot be merged cleanly into master; the changed-file flow below shows which review/runtime path is blocked by the conflict.
• Fix: Merge or rebase the latest master into bolt-optimize-io-ops-4569824618416964702, resolve conflict markers in the PR branch, rerun the focused checks, and push the same branch.
• Repair commands:

gh pr checkout 130 --repo ContextualWisdomLab/html4tree
git fetch origin master
git merge --no-ff origin/master  # or: git rebase origin/master
git status --short
# resolve files, then git add <resolved-files>
# merge path: git commit
# rebase path: git rebase --continue
git push origin HEAD:bolt-optimize-io-ops-4569824618416964702
# rebase path only: git push --force-with-lease origin HEAD:bolt-optimize-io-ops-4569824618416964702

• Regression test: Keep OpenCode approval gated on mergeability so model-output failures cannot approve a conflicted PR.

Merge Conflict Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Changed file (2 files)"]
  S1 --> I1["repository behavior"]
  I1 --> Conflict["Merge conflict blocks this path"]
  Conflict --> V1["required checks"]

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• Result: REQUEST_CHANGES
• Reason: mergeStateStatus is DIRTY; mergeable is CONFLICTING.
• Head SHA: eaeb90931e5fa95cd2243109d6593a64041f76bf
• Workflow run: 29151401483
• Workflow attempt: 1

Changed-File Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Changed file (2 files)"]
  S1 --> I1["repository behavior"]
  I1 --> Conflict["Merge conflict blocks this path"]
  Conflict --> V1["required checks"]

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Merge Conflict Guidance

• Current merge state: DIRTY
• Base branch: master
• Head branch: bolt-optimize-io-ops-4569824618416964702
• Fix direction: merge or rebase origin/master into bolt-optimize-io-ops-4569824618416964702, resolve conflict markers in the changed files, rerun the focused checks, then push the same branch.
• Repair commands:

gh pr checkout 130 --repo ContextualWisdomLab/html4tree
git fetch origin master
git merge --no-ff origin/master  # or: git rebase origin/master
git status --short
# resolve files, then git add <resolved-files>
# merge path: git commit
# rebase path: git rebase --continue
git push origin HEAD:bolt-optimize-io-ops-4569824618416964702
# rebase path only: git push --force-with-lease origin HEAD:bolt-optimize-io-ops-4569824618416964702

[opencode-agent]

Pull request overview

OpenCode reviewed the current-head mergeability evidence and changed-file flow before approval, then found merge conflicts on the affected path.

Findings

1. HIGH Merge Conflict Guidance - Resolve the PR branch against the latest base branch

• Problem: GitHub reports mergeStateStatus DIRTY for this pull request.
• Root cause: Branch bolt-optimize-io-ops-4569824618416964702 cannot be merged cleanly into master; the changed-file flow below shows which review/runtime path is blocked by the conflict.
• Fix: Merge or rebase the latest master into bolt-optimize-io-ops-4569824618416964702, resolve conflict markers in the PR branch, rerun the focused checks, and push the same branch.
• Repair commands:

gh pr checkout 130 --repo ContextualWisdomLab/html4tree
git fetch origin master
git merge --no-ff origin/master  # or: git rebase origin/master
git status --short
# resolve files, then git add <resolved-files>
# merge path: git commit
# rebase path: git rebase --continue
git push origin HEAD:bolt-optimize-io-ops-4569824618416964702
# rebase path only: git push --force-with-lease origin HEAD:bolt-optimize-io-ops-4569824618416964702

• Regression test: Keep OpenCode approval gated on mergeability so model-output failures cannot approve a conflicted PR.

Merge Conflict Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Changed file (2 files)"]
  S1 --> I1["repository behavior"]
  I1 --> Conflict["Merge conflict blocks this path"]
  Conflict --> V1["required checks"]

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• Result: REQUEST_CHANGES
• Reason: mergeStateStatus is DIRTY; mergeable is CONFLICTING.
• Head SHA: eaeb90931e5fa95cd2243109d6593a64041f76bf
• Workflow run: 29151401483
• Workflow attempt: 1

Changed-File Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Changed file (2 files)"]
  S1 --> I1["repository behavior"]
  I1 --> Conflict["Merge conflict blocks this path"]
  Conflict --> V1["required checks"]

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