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BridgeJS: Skip writing output files when content is unchanged #639

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Merged
krodak merged 1 commit into from
Feb 16, 2026
+14 −2
Merged

BridgeJS: Skip writing output files when content is unchanged #639

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16 changes: 14 additions & 2 deletions Plugins/BridgeJS/Sources/BridgeJSTool/BridgeJSTool.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -225,7 +225,7 @@ import BridgeJSUtilities
withIntermediateDirectories: true,
attributes: nil
)
try outputSwift.write(to: outputSwiftURL, atomically: true, encoding: .utf8)
try writeIfChanged(outputSwift, to: outputSwiftURL)
}
}

Expand All @@ -240,7 +240,7 @@ import BridgeJSUtilities
let encoder = JSONEncoder()
encoder.outputFormatting = [.prettyPrinted, .sortedKeys]
let skeletonData = try encoder.encode(skeleton)
try skeletonData.write(to: outputSkeletonURL)
try writeIfChanged(skeletonData, to: outputSkeletonURL)
}

if skeleton.exported != nil || skeleton.imported != nil {
Expand Down Expand Up @@ -282,6 +282,18 @@ private func hasBridgeJSSkipComment(_ content: String) -> Bool {
BridgeJSGeneratedFile.hasSkipComment(content)
}

private func writeIfChanged(_ content: String, to url: URL) throws {
let existing = try? String(contentsOf: url, encoding: .utf8)
guard existing != content else { return }
try content.write(to: url, atomically: true, encoding: .utf8)
}

private func writeIfChanged(_ data: Data, to url: URL) throws {
let existing = try? Data(contentsOf: url)
guard existing != data else { return }
try data.write(to: url)
}

private func combineGeneratedSwift(_ pieces: [String]) -> String {
let trimmedPieces =
pieces
Expand Down