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common/time_zone: Simplify GetOsTimeZoneOffset()
We can simplify this function down into a single line with the use of fmt. A benefit with the fmt approach is that the fmt variant of localtime is thread-safe as well, making GetOsTimeZoneOffset() thread-safe as well.
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1 changed files with 5 additions and 9 deletions
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@ -3,8 +3,9 @@
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// Refer to the license.txt file included.
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#include <chrono>
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#include <iomanip>
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#include <sstream>
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#include <ctime>
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#include <fmt/chrono.h>
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#include "common/logging/log.h"
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#include "common/time_zone.h"
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@ -16,13 +17,8 @@ std::string GetDefaultTimeZone() {
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}
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static std::string GetOsTimeZoneOffset() {
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const std::time_t t{std::time(nullptr)};
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const std::tm tm{*std::localtime(&t)};
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std::stringstream ss;
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ss << std::put_time(&tm, "%z"); // Get the current timezone offset, e.g. "-400", as a string
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return ss.str();
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// Get the current timezone offset, e.g. "-400", as a string
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return fmt::format("%z", fmt::localtime(std::time(nullptr)));
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}
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static int ConvertOsTimeZoneOffsetToInt(const std::string& timezone) {
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