⚡ Bolt: 디렉토리 처리 루프의 정적 에셋 해싱 및 재할당 방지 - #303
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디렉토리 반복문(process_dir)에서 매번 할당되던 대용량 문자열과 SHA-256 해시 연산을 private object StaticAssets 로 추출하여 성능을 최적화했습니다. const val 및 @JvmField 를 사용하여 리플렉션/getter로 인한 테스트 커버리지 하락을 방지했습니다.
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OpenCode Review Overview
Pull request overviewOpenCode reviewed the current-head bounded evidence and requested changes before merge. Findings1. P1 src/main/kotlin/html4tree/main.kt:243 - const val with string-template initializer does not compile in Kotlin
2. P2 .jules/bolt.md:48 - Unverified 100% coverage claim with no test/coverage execution evidence
SummaryApproval sufficiency: REQUEST_CHANGES — no affirmative build/test evidence exists for head 5755d9, and the changed hunks introduce a Kotlin compile-time rejection. Verification posture: no OPENCODE_EXECUTION_RECEIPT for ./gradlew test or ./gradlew check exists in bounded evidence; Failed GitHub Check evidence reports no completed checks. Linter/static: ./gradlew check is the configured lint contract (lint_commands) but has no execution receipt. TDD/regression: MainTest.kt and AttrExceptionTest.kt exercise process_dir/go (CodeGraph blast radius confirms tests), but no receipt shows them passing on this head. Coverage: Coverage execution evidence Result=PASS but explicitly 'Test coverage: not applicable (no supported changed source files or package manifests)' and Docstring coverage likewise not applicable — the PR's 100% JaCoCo claim in .jules/bolt.md:48 is unsupported. DAG: flowchart below maps base-to-head changed flow process_dir -> StaticAssets -> write_index_file; CodeGraph shows main/Html4tree/FileIdentity callers unchanged. PoC/execution: none — no execution receipts for the changed source. DDD/domain: html4tree static-site generator; generated index.html semantics preserved only if the file compiles. CDD/context: private object StaticAssets is file-scoped; no cross-module context change. Similar issues: file history shows repeated Bolt optimization PRs (#169, #164, #157) — this one adds a new compile-risk class. Claim/concept check: 'const val/@JvmField avoids JaCoCo implicit-getter coverage drops' is plausible but unverified, and '100% coverage maintained' is contradicted by coverage evidence being not applicable. Standards search: Kotlin constant expressions exclude string templates from const initializers (language-rule fact; no official docs in bounded evidence — stated as source limitation). Compatibility/convention: process_dir signature and CSP style-src hash output are byte-identical to base if it compiles; no renamed public identifiers; StaticAssets/index_bottom naming is idiomatic and reserved-word-safe. Breaking-change/backcompat: none intended; generated HTML is byte-identical to base. Implementation completeness: StaticAssets members are fully implemented, but the const-val template makes the file unbuildable; help() placeholder is pre-existing and unchanged. Performance: the stated goal (avoid per-iteration string allocation and SHA-256 recomputation) is achieved only if the code compiles. Developer experience: repo convention is gradle/kotlin with ./gradlew test and ./gradlew check; neither is receipted at this head. User experience: non-web CLI/static-generator surface; index.html structure, lang=ko, aria labels, and empty-dir role=status unchanged. Visual/DOM: non-web surface; no browser receipts exist or apply. Accessibility/i18n: no a11y/i18n regressions in generated markup. Supply-chain/license: zero dependency changes. Packaging: build.gradle contract (gradlew test/check) unchanged by this PR. Security/privacy: CSP sha256 style-src computed from identical cssContent bytes, referrer no-referrer preserved; no secrets or new identifiers introduced. Changed-file evidence inspected: src/main/kotlin/html4tree/main.kt (focused hunks at new lines 231-260, 305-360, 385-408) and .jules/bolt.md (hunk at 34-48). Adversarial validation{"status":"failed","probes":[{"path":"src/main/kotlin/html4tree/main.kt","line":243,"hypothesis":"Extracting static assets into `private object StaticAssets` introduces `const val css` whose initializer is a string template, which Kotlin constant-expression rules reject, so the changed module cannot compile.","attack_or_counterexample":"Current-head hunk adds `const val css = \"\"\"<style>...${cssContent}...</style>\"\"\"` inside the object opened at line 243 — a string template in a const initializer; Kotlin constant expressions exclude string templates, so the compiler rejects the initializer with 'Const 'val' initializer should be a constant value'.","evidence":"Trusted source trace: the changed hunk shows the const-val template introduced by the object at src/main/kotlin/html4tree/main.kt:243; no OPENCODE_EXECUTION_RECEIPT, failed-check log, or Coverage execution evidence anywhere in bounded evidence shows ./gradlew test or ./gradlew check succeeding at head 5755d9 (Coverage evidence: 'not applicable (no supported changed source files or package manifests)'), so the compile rejection is not falsified. source-line-sha256=0d6c0aa9e6958fb7ee550e95c125f8abdf05a3a863fd2fd796fe0f5c1726245a","outcome":"confirmed"},{"path":".jules/bolt.md","line":48,"hypothesis":"The documented claim that the refactor keeps JaCoCo coverage at 100% via const val/@JvmField is unsupported by any trusted execution evidence.","attack_or_counterexample":"Check the doc's Action claim at .jules/bolt.md:48 against the trusted Coverage decision for head 5755d9, which reports coverage as not applicable with no report, and against the absence of any test-execution receipt.","evidence":"Trusted Coverage execution evidence: Result PASS but 'Test coverage: not applicable (no supported changed source files or package manifests)'; no OPENCODE_EXECUTION_RECEIPT lines exist in bounded evidence and Failed GitHub Check evidence lists no completed checks at head 5755d9, so the 100%-coverage claim has no trusted execution support at .jules/bolt.md:48. source-line-sha256=2270a3215002df173357c4dec7b571accc39646a7d0c5ff7876e0f367b0fd9cc","outcome":"confirmed"}],"residual_risk":"The compile blocker is anchored to Kotlin's constant-expression rules; if a future Kotlin version were to permit template const initializers the build risk would shrink, but the missing ./gradlew test/check receipts and unmeasured coverage would still leave the refactor and its claims unverified. Byte-identical index.html/CSP-hash equivalence holds only if the file compiles."}
Changed-File Evidence Mapflowchart LR
PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
Evidence --> S1["Changed file (2 files)"]
S1 --> I1["repository behavior"]
I1 --> R1["Review risk: Changed file (2 files)"]
R1 --> V1["required checks"]
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Pull request overview
OpenCode reviewed the current-head bounded evidence and requested changes before merge.
Findings
1. P1 src/main/kotlin/html4tree/main.kt:243 - const val with string-template initializer does not compile in Kotlin
- Problem: The extracted
private object StaticAssets(opened at line 243) declaresconst val css = """<style>...${cssContent}...</style>""", whose initializer contains a string template. Kotlin constant expressions exclude string templates, so the Kotlin compiler rejects the initializer ('Const 'val' initializer should be a constant value'); the module cannot build, and process_dir/go — the CLI's core path — become unavailable. No execution receipt anywhere in bounded evidence shows this head compiling. - Root cause: The PR mixes two goals: hoisting static strings (valid) and forcing
constto avoid JaCoCo implicit-getter coverage drops.const valrequires a compile-time constant initializer; string interpolation is not a constant expression even when the interpolated value is itselfconst(cssContent). - Fix: Replace the template with constant string concatenation that yields byte-identical output —
const val css = "\n <style>\n" + cssContent + " </style>\n \n"— or dropconstand use a plainval/@JvmField valin the object (still computed once per process, preserving the stated optimization). - Regression test: ./gradlew test (test_commands) plus ./gradlew check (lint_commands); existing MainTest.kt (testGoRejectsRootDirectory, testCliMainParsing, testProcessDirHandlesNonDirectoryWithoutThrowing) and AttrExceptionTest.kt exercise process_dir and must pass after the fix.
- Suggested diff: posted in this finding's inline review thread.
2. P2 .jules/bolt.md:48 - Unverified 100% coverage claim with no test/coverage execution evidence
- Problem: The new learning entry asserts the change keeps coverage at 100% ('100% 테스트 커버리지를 유지하기 위해 const val 및 @JvmField를 사용'), but the trusted Coverage execution evidence for head 5755d9 reports Result PASS as 'not applicable (no supported changed source files or package manifests)' and no OPENCODE_EXECUTION_RECEIPT shows ./gradlew test or a JaCoCo report at this head, so the coverage claim is unsupported.
- Root cause: PR verification relies on the refactor being trivially coverage-neutral without executing the repository test/coverage contract; the coverage decision explicitly marks this change as not applicable.
- Fix: Run ./gradlew test plus the JaCoCo report at head 5755d9 and attach the receipt/report, or soften the doc claim to state that coverage must be re-measured after the extraction.
- Regression test: ./gradlew test
- Suggested diff: posted in this finding's inline review thread.
Summary
Approval sufficiency: REQUEST_CHANGES — no affirmative build/test evidence exists for head 5755d9, and the changed hunks introduce a Kotlin compile-time rejection. Verification posture: no OPENCODE_EXECUTION_RECEIPT for ./gradlew test or ./gradlew check exists in bounded evidence; Failed GitHub Check evidence reports no completed checks. Linter/static: ./gradlew check is the configured lint contract (lint_commands) but has no execution receipt. TDD/regression: MainTest.kt and AttrExceptionTest.kt exercise process_dir/go (CodeGraph blast radius confirms tests), but no receipt shows them passing on this head. Coverage: Coverage execution evidence Result=PASS but explicitly 'Test coverage: not applicable (no supported changed source files or package manifests)' and Docstring coverage likewise not applicable — the PR's 100% JaCoCo claim in .jules/bolt.md:48 is unsupported. DAG: flowchart below maps base-to-head changed flow process_dir -> StaticAssets -> write_index_file; CodeGraph shows main/Html4tree/FileIdentity callers unchanged. PoC/execution: none — no execution receipts for the changed source. DDD/domain: html4tree static-site generator; generated index.html semantics preserved only if the file compiles. CDD/context: private object StaticAssets is file-scoped; no cross-module context change. Similar issues: file history shows repeated Bolt optimization PRs (#169, #164, #157) — this one adds a new compile-risk class. Claim/concept check: 'const val/@JvmField avoids JaCoCo implicit-getter coverage drops' is plausible but unverified, and '100% coverage maintained' is contradicted by coverage evidence being not applicable. Standards search: Kotlin constant expressions exclude string templates from const initializers (language-rule fact; no official docs in bounded evidence — stated as source limitation). Compatibility/convention: process_dir signature and CSP style-src hash output are byte-identical to base if it compiles; no renamed public identifiers; StaticAssets/index_bottom naming is idiomatic and reserved-word-safe. Breaking-change/backcompat: none intended; generated HTML is byte-identical to base. Implementation completeness: StaticAssets members are fully implemented, but the const-val template makes the file unbuildable; help() placeholder is pre-existing and unchanged. Performance: the stated goal (avoid per-iteration string allocation and SHA-256 recomputation) is achieved only if the code compiles. Developer experience: repo convention is gradle/kotlin with ./gradlew test and ./gradlew check; neither is receipted at this head. User experience: non-web CLI/static-generator surface; index.html structure, lang=ko, aria labels, and empty-dir role=status unchanged. Visual/DOM: non-web surface; no browser receipts exist or apply. Accessibility/i18n: no a11y/i18n regressions in generated markup. Supply-chain/license: zero dependency changes. Packaging: build.gradle contract (gradlew test/check) unchanged by this PR. Security/privacy: CSP sha256 style-src computed from identical cssContent bytes, referrer no-referrer preserved; no secrets or new identifiers introduced. Changed-file evidence inspected: src/main/kotlin/html4tree/main.kt (focused hunks at new lines 231-260, 305-360, 385-408) and .jules/bolt.md (hunk at 34-48).
Adversarial validation
{"status":"failed","probes":[{"path":"src/main/kotlin/html4tree/main.kt","line":243,"hypothesis":"Extracting static assets into `private object StaticAssets` introduces `const val css` whose initializer is a string template, which Kotlin constant-expression rules reject, so the changed module cannot compile.","attack_or_counterexample":"Current-head hunk adds `const val css = \"\"\"<style>...${cssContent}...</style>\"\"\"` inside the object opened at line 243 — a string template in a const initializer; Kotlin constant expressions exclude string templates, so the compiler rejects the initializer with 'Const 'val' initializer should be a constant value'.","evidence":"Trusted source trace: the changed hunk shows the const-val template introduced by the object at src/main/kotlin/html4tree/main.kt:243; no OPENCODE_EXECUTION_RECEIPT, failed-check log, or Coverage execution evidence anywhere in bounded evidence shows ./gradlew test or ./gradlew check succeeding at head 5755d9 (Coverage evidence: 'not applicable (no supported changed source files or package manifests)'), so the compile rejection is not falsified. source-line-sha256=0d6c0aa9e6958fb7ee550e95c125f8abdf05a3a863fd2fd796fe0f5c1726245a","outcome":"confirmed"},{"path":".jules/bolt.md","line":48,"hypothesis":"The documented claim that the refactor keeps JaCoCo coverage at 100% via const val/@JvmField is unsupported by any trusted execution evidence.","attack_or_counterexample":"Check the doc's Action claim at .jules/bolt.md:48 against the trusted Coverage decision for head 5755d9, which reports coverage as not applicable with no report, and against the absence of any test-execution receipt.","evidence":"Trusted Coverage execution evidence: Result PASS but 'Test coverage: not applicable (no supported changed source files or package manifests)'; no OPENCODE_EXECUTION_RECEIPT lines exist in bounded evidence and Failed GitHub Check evidence lists no completed checks at head 5755d9, so the 100%-coverage claim has no trusted execution support at .jules/bolt.md:48. source-line-sha256=2270a3215002df173357c4dec7b571accc39646a7d0c5ff7876e0f367b0fd9cc","outcome":"confirmed"}],"residual_risk":"The compile blocker is anchored to Kotlin's constant-expression rules; if a future Kotlin version were to permit template const initializers the build risk would shrink, but the missing ./gradlew test/check receipts and unmeasured coverage would still leave the refactor and its claims unverified. Byte-identical index.html/CSP-hash equivalence holds only if the file compiles."}-
Result: REQUEST_CHANGES
-
Reason: The extraction introduces
const val csswith a string-template initializer inprivate object StaticAssets, which Kotlin constant-expression rules reject, so the module cannot build; no trusted test/coverage execution receipt verifies the refactor or the documented 100%-coverage claim. -
Head SHA:
5755d958fb27e59a7ea317c96b0a7341a840ac5a -
Workflow run: 30887252662
-
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 --> R1["Review risk: Changed file (2 files)"]
R1 --> V1["required checks"]
| val exclude: Set<String> = excludeSet ?: process_ignore_file(curr_dir) | ||
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| val cssContent = """ | ||
| private object StaticAssets { |
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P1 const val with string-template initializer does not compile in Kotlin
- Location:
src/main/kotlin/html4tree/main.kt:243 - Problem: The extracted
private object StaticAssets(opened at line 243) declaresconst val css = """<style>...${cssContent}...</style>""", whose initializer contains a string template. Kotlin constant expressions exclude string templates, so the Kotlin compiler rejects the initializer ('Const 'val' initializer should be a constant value'); the module cannot build, and process_dir/go — the CLI's core path — become unavailable. No execution receipt anywhere in bounded evidence shows this head compiling. - Root cause: The PR mixes two goals: hoisting static strings (valid) and forcing
constto avoid JaCoCo implicit-getter coverage drops.const valrequires a compile-time constant initializer; string interpolation is not a constant expression even when the interpolated value is itselfconst(cssContent). - Fix: Replace the template with constant string concatenation that yields byte-identical output —
const val css = "\n <style>\n" + cssContent + " </style>\n \n"— or dropconstand use a plainval/@JvmField valin the object (still computed once per process, preserving the stated optimization). - Regression test: ./gradlew test (test_commands) plus ./gradlew check (lint_commands); existing MainTest.kt (testGoRejectsRootDirectory, testCliMainParsing, testProcessDirHandlesNonDirectoryWithoutThrowing) and AttrExceptionTest.kt exercise process_dir and must pass after the fix.
Suggested diff
```diff
- const val css = """
- <style>
-${cssContent} </style>
- """
+ const val css = "\n <style>\n" + cssContent + " </style>\n \n"| **조치:** 디렉토리 순회 시 파일의 여러 속성을 확인할 때는 개별적인 stat 호출보다 `Files.readAttributes`를 사용하여 필요한 모든 속성을 한 번에 가져오는 방식을 우선적으로 고려해야 합니다. | ||
| ## 2024-07-29 - 디렉토리 처리 루프의 정적 에셋 재할당 방지 | ||
| **Learning:** 디렉토리 처리 루프(`process_dir`) 내에서 고정된 문자열 할당과 비용이 많이 드는 SHA-256 해시 계산이 반복적으로 발생하여 CPU 및 메모리 낭비가 발생했습니다. 또한 Kotlin에서 정적 변수를 추출할 때 컴파일러가 생성하는 암시적 getter로 인해 JaCoCo 테스트 커버리지가 떨어지는 문제가 있습니다. | ||
| **Action:** 대규모 정적 문자열과 결정론적 계산 결과를 `private object`로 추출하고, 100% 테스트 커버리지를 유지하기 위해 `const val` 및 `@JvmField`를 사용하도록 수정합니다. |
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P2 Unverified 100% coverage claim with no test/coverage execution evidence
- Location:
.jules/bolt.md:48 - Problem: The new learning entry asserts the change keeps coverage at 100% ('100% 테스트 커버리지를 유지하기 위해 const val 및 @JvmField를 사용'), but the trusted Coverage execution evidence for head 5755d9 reports Result PASS as 'not applicable (no supported changed source files or package manifests)' and no OPENCODE_EXECUTION_RECEIPT shows ./gradlew test or a JaCoCo report at this head, so the coverage claim is unsupported.
- Root cause: PR verification relies on the refactor being trivially coverage-neutral without executing the repository test/coverage contract; the coverage decision explicitly marks this change as not applicable.
- Fix: Run ./gradlew test plus the JaCoCo report at head 5755d9 and attach the receipt/report, or soften the doc claim to state that coverage must be re-measured after the extraction.
- Regression test: ./gradlew test
Suggested diff
```diff
-**Action:** 대규모 정적 문자열과 결정론적 계산 결과를 `private object`로 추출하고, 100% 테스트 커버리지를 유지하기 위해 `const val` 및 `@JvmField`를 사용하도록 수정합니다.
+**Action:** 대규모 정적 문자열과 결정론적 계산 결과를 `private object`로 추출해 재할당을 방지하고, `./gradlew test` 및 JaCoCo 리포트로 커버리지 100% 유지 여부를 재검증합니다.
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Closing as superseded by canonical PR #363. #363 removes per-directory stylesheet allocation/hash work, fixes the underlying CSP byte-identity defect, proves the declared digest against the exact emitted UTF-8 |
Understood. Acknowledging that this work is superseded by #363 and is now obsolete. Stopping work on this task. |
1 participant
💡 What:
process_dir내부에 선언되었던 정적 CSS,index_bottom문자열 및styleHash(SHA-256) 생성 로직을private object StaticAssets로 분리했습니다.const val과@JvmField를 사용했습니다.🎯 Why:
process_dir함수가 호출될 때마다 동일한 문자열과 비용이 큰 SHA-256 해시가 불필요하게 반복 생성되어 CPU 및 메모리 낭비가 발생했습니다.object내에 일반val로 상수들을 선언할 경우 자동 생성된 getter 메서드로 인해 JaCoCo 테스트 커버리지가 떨어지는 문제가 있어 이를 방지하고자 했습니다.📊 Impact:
🔬 Measurement:
./gradlew clean test jacocoTestReport jacocoTestCoverageVerification을 통해 확인 완료했습니다.PR created automatically by Jules for task 13249622679951415189 started by @seonghobae