Merge "Use eng build's build time in `aapt2 version`" into main

#include <string>

#include <vector>

#include "android-base/parseint.h"

#include "android-base/stringprintf.h"

#include "android-base/strings.h"

#include "androidfw/BigBuffer.h"

  static const char* const sMinorVersion = "19";

  // The build id of aapt2 binary.

  static std::string sBuildId = android::build::GetBuildNumber();

  if (android::base::StartsWith(sBuildId, "eng.")) {

  static const std::string sBuildId = [] {

    std::string buildNumber = android::build::GetBuildNumber();

    if (android::base::StartsWith(buildNumber, "eng.")) {

      // android::build::GetBuildNumber() returns something like "eng.user.20230725.214219" where

      // the latter two parts are "yyyyMMdd.HHmmss" at build time. Use "yyyyMM" in the fingerprint.

      std::vector<std::string> parts = util::Split(buildNumber, '.');

      int buildYear;

      int buildMonth;

      if (parts.size() < 3 || parts[2].length() < 6 ||

          !android::base::ParseInt(parts[2].substr(0, 4), &buildYear) ||

          !android::base::ParseInt(parts[2].substr(4, 2), &buildMonth)) {

        // Fallback to localtime() if GetBuildNumber() returns an unexpected output.

        time_t now = time(0);

        tm* ltm = localtime(&now);

        buildYear = 1900 + ltm->tm_year;

        buildMonth = 1 + ltm->tm_mon;

      }

    sBuildId = android::base::StringPrintf("eng.%d%d", 1900 + ltm->tm_year, 1 + ltm->tm_mon);

      buildNumber = android::base::StringPrintf("eng.%04d%02d", buildYear, buildMonth);

    }

    return buildNumber;

  }();

  return android::base::StringPrintf("%s.%s-%s", sMajorVersion, sMinorVersion, sBuildId.c_str());

}