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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2024 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import Foundation
import SKCore
struct SwiftFrontendCrashScraper {
/// Information we care about in a `.ips` crash report.
private struct IpsCrashReport: Decodable {
struct Asi: Decodable {
let swiftFrontend: [String]
enum CodingKeys: CodingKey {
case swiftFrontend
var stringValue: String {
switch self {
case .swiftFrontend: "swift-frontend"
}
}
}
}
let procLaunch: Date
let asi: Asi
}
struct SwiftFrontendCrash {
let date: Date
let swiftFrontend: URL
let frontendArgs: [String]
}
private var directoriesToScanForCrashReports: [String]
init(directoriesToScanForCrashReports: [String]) {
self.directoriesToScanForCrashReports = directoriesToScanForCrashReports
}
private func crashReports() -> [URL] {
var crashReports: [URL] = []
for directoryToScan in directoriesToScanForCrashReports {
let diagnosticReports = URL(fileURLWithPath: (directoryToScan as NSString).expandingTildeInPath)
let enumerator = FileManager.default.enumerator(at: diagnosticReports, includingPropertiesForKeys: nil)
while let fileUrl = enumerator?.nextObject() as? URL {
if fileUrl.lastPathComponent.hasPrefix("swift-frontend"), fileUrl.pathExtension == "ips" {
crashReports.append(fileUrl)
}
}
}
return crashReports
}
/// Find `swift-frontend` crashes
func findSwiftFrontendCrashes() -> [SwiftFrontendCrash] {
return crashReports().compactMap { (crashReportUrl) -> SwiftFrontendCrash? in
guard let fileContents = try? String(contentsOf: crashReportUrl, encoding: .utf8) else {
return nil
}
// The first line contains some summary data that we're not interested in. Remove it
guard let firstNewline = fileContents.firstIndex(of: "\n") else {
return nil
}
let interestingString = fileContents[firstNewline...]
let dateFormatter = DateFormatter()
dateFormatter.timeZone = NSTimeZone.local
dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss.SSSS Z"
let decoder = JSONDecoder()
decoder.dateDecodingStrategy = .formatted(dateFormatter)
guard let decoded = try? decoder.decode(IpsCrashReport.self, from: interestingString.data(using: .utf8)!) else {
return nil
}
let commandLineString = decoded.asi.swiftFrontend
.compactMap { (entry) -> Substring? in
guard let range = entry.firstRange(of: "Program arguments: ") else {
return nil
}
return entry[range.upperBound...]
}
.first
guard let commandLineString else {
return nil
}
let commandLine = splitShellEscapedCommand(String(commandLineString))
guard let swiftFrontendPath = commandLine.first else {
return nil
}
let swiftFrontendUrl = URL(fileURLWithPath: swiftFrontendPath)
return SwiftFrontendCrash(
date: decoded.procLaunch,
swiftFrontend: swiftFrontendUrl,
frontendArgs: Array(commandLine.dropFirst())
)
}
}
}
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