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refactor(ignore): defer filename normalization after cheap exclusions #618

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refactor(ignore): defer filename normalization after cheap exclusions #618

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00f8071
⚡ Bolt: [성능 개선] 파일명 지연 평가를 통한 GC 할당 최적화
seonghobae Sep 4, 2026
c916889
docs(perf): keep lowercasing optimization evidence-bounded
seonghobae Sep 4, 2026
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22 changes: 13 additions & 9 deletions src/main/kotlin/html4tree/main.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -351,16 +351,20 @@ fun process_ignore_file(curr_dir: File, dirFilesNames: Array<String>? = null): S

// 보안 향상: dot-like prefixes and case variants of known sensitive names are excluded.
(dirFilesNames ?: curr_dir.list())?.forEach {
val normalizedName = it.toLowerCase(java.util.Locale.ROOT)
if (
it.isHiddenFile() ||
normalizedName in Constants.defaultSensitiveFileNamesLowercase ||
normalizedName.endsWith("~") ||
Constants.defaultSensitiveExtensions.any { extension ->
normalizedName.endsWith(extension)
}
) {
if (it.isHiddenFile() || it.endsWith("~")) {
files_to_exclude.add(it)
} else {
// ⚡ Bolt Performance Optimization: Defer expensive string allocation
// (toLowerCase) until after evaluating cheap, short-circuiting properties.
val normalizedName = it.toLowerCase(java.util.Locale.ROOT)
if (
normalizedName in Constants.defaultSensitiveFileNamesLowercase ||
Constants.defaultSensitiveExtensions.any { extension ->
normalizedName.endsWith(extension)
}
) {
files_to_exclude.add(it)
}
}
}

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