c050d6a01e
The %f specified extends the string(TIMESTAMP) and file(TIMESTAMP) commands to output the timestamp with a microsecond resolution. This convention is offered by python's datetime module. Before, the precision was limited to seconds. The implementation is done by extending existing cmTimestamp methods with a `microseconds` parameter. This parameter is optional in order to be backwards compatible. The timestamps are now received in a cross-platform manner using libuv, since the standard C functions like time() don't allow for sub-second precision. This requires libuv 1.28 or higher. We already require higher than that on Windows, so update the required version for other platforms. Implements: #19335
38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#pragma once
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#include "cmConfigure.h" // IWYU pragma: keep
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#include <cstdint>
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#include <ctime>
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#include <string>
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/** \class cmTimestamp
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* \brief Utility class to generate string representation of a timestamp
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*
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*/
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class cmTimestamp
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{
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public:
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std::string CurrentTime(const std::string& formatString, bool utcFlag) const;
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std::string FileModificationTime(const char* path,
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const std::string& formatString,
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bool utcFlag) const;
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std::string CreateTimestampFromTimeT(time_t timeT, std::string formatString,
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bool utcFlag) const;
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std::string CreateTimestampFromTimeT(time_t timeT, uint32_t microseconds,
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std::string formatString,
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bool utcFlag) const;
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private:
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time_t CreateUtcTimeTFromTm(struct tm& timeStruct) const;
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std::string AddTimestampComponent(char flag, struct tm& timeStruct,
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time_t timeT,
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uint32_t microseconds = 0) const;
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};
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