Changelog:
1.6.1
Fixed deadlock in daily_file_sink that happened while cleaning older files. Thanks @IIFE for reporting(#1570) and for fixing(#1571).
Fixed ringbuffer_sink::last_raw() and ringbuffer_sink::last_formatted() that didn't return latest elements. Thanks @vekkuli for reporting and fixing (#1563).
Fixed missing symbol wstr_to_utf8buf(..) in windows dll build. Thanks @haquocviet for reporting (#1569).
Bumped bundled fmt to version 6.2.1.
1.6.0
What's new
Load log levels from environment variable SPDLOG_LEVEL :
#include "spdlog/cfg/env.h"
...
spdlog::cfg::load_env_levels();
$ # set log level to debug
$ SPDLOG_LEVEL=debug && ./example
$ # set to info except for mylogger which is set to trace:
$ SPDLOG_LEVEL=info,mylogger=trace && ./example
$ # turn off all logging except for mylogger which is set to debug::
$ SPDLOG_LEVEL=off,mylogger=debug && ./example
Load log levels from argv (e.g. ./example SPDLOG_LEVEL=debug):
#include "spdlog/cfg/argv.h"
...
spdlog::cfg::load_argv_levels(argc, argv);
New windows eventlog sink . Thanks @ban-dana (#1418).
New tcp sink that sends log messages in tcp to a remote server. Thanks @Proheeler (#1426).
Extend spdlog with your own flags in the log pattern. See wiki for details.
Support for building spdlog as dll under windows. Thanks vejmartin (#1467, 3b73278, 5b3a183).
Bump the bundled fmt version to 6.2.0 .
Fixes and Improvements
Prevent race condition when SPDLOG_PREVENT_CHILD_FD is defined. Thanks @dominicpoeschko (#1423).
Fix race condition in the filename() function in the file sinks. Thanks @tt4g (#1430, #1431).
Fix ansicolor_sink::set_color(..) - can cause memory violation if user provides a custom color code that points to stack memory (#1540, 0b36d4e). Thanks @caizongchao for reporting.
Fix potential buffer overflow in color_sinks if creating multiple color sinks in the same logger and one of them has a pattern without color flags (#1452, 64de880). Thanks @dominicpoeschko for reporting.
Optimize cases when string_view is passed to the logger to avoid unnecessary fmt::format. Thanks dominicpoeschko (#1424) .
Support for max files in daily logger - delete oldest files after creating the daily file. Thanks @ruoshui1314 (#1394).
Fix deprecated warning with C++14 and external fmt lib (#1439). Thanks @ClausKlein for reporting.
Optimize colos sinks to use std::array instead of map to find color codes (695912c, 4b7c059). Thanks @qis for the suggestion.
Fix Win32 event log sink compilation. Thanks @Crunkle (#1444).
Don't include windows.h in common.h. Thanks @ghost (#1453).
Resolve erroneous clang-tidy warning about using a moved from pointer. Thanks @Ruffel (#1457).
Fixed numerous clang-tidy warnings.
Added options to to_hex to output hex like hexdump. Thanks @ngugcx (#1472).
Fix Windows setenv check. Thanks @Crunkle (#1475).
Removed the 'SPDLOG_NO_NAME` macro in tweakme.h and cmake.
Added a forward declaration header spdlog\fwd.h . Thanks @horenmar for the suggestion (#1481).
Moved throw to dedicated function to optimize compile-time and runtime-performance. Thanks @horenmar for the suggestion (#1483).
Fix a build issue when SPDLOG_PREVENT_CHILD_FD is defined. Thanks @Naios (#1487).
Fix issue with using external fmt (#1480). Thanks @nalinigans for reporting.
Minor performance optimizations in pattern formatter (ca9c83f, 76389e0, 7766bc2, d38bd13)
Fixed on Android compilation #1527. Thanks @Bizyroth for reporting.
Add log function to the logger API to allow logging with custom timepoint. #1521 - Thanks @ron003 .
Fix missing exported symbol when building spdlog.dll in windows (#1535, 348c438). Thanks @plmzod for reporting.
Dropped meson support.
Fix typos and tabs in the code. Thanks @waywardmonkeys (#1536) .
CMake: Fix GNUInstallDirs include location Thanks @vitlav (#1407).
CMake: workaround for Unknown extension ".c" for file issue . Thanks @niamster (#1442).
CMake: Support CPack RPM generation. Thanks @tcraigtyler (#1451).
CMake: Disabled extra warnings generation by default. Use SPDLOG_BUILD_WARNINGS=ON to enable again. Thanks @Glamhoth (#1503 02802af, 6440733, 1f7f1c1)
CMake: Support for precompiled headers with SPDLOG_ENABLE_PCH flag. Thanks @OlivierLDff (#1484).
CMake: Add /WX MSVC compiler option for only if mscv compiler is used. Thanks @trondhe (#1495).
CMake: Set minimum version of fmt to 5.3.0. Thanks @Montellese (#1525).
CMake: Fix tabs, whitespaces and eol. Thanks @waywardmonkeys (#1537).
Tests: removed duplicate entry for count_lines(). Thanks @emmenlau (#1417).
Tests: don't run spdlog-utests and spdlog-utests-ho in parallel. Thanks @tt4g (#1421).
Tests: Enable running the tests against an installed copy of spdlog. Thanks @mr-c (#1422).
Tests: Support empty SPDLOG_EOL. Thanks @emmenlau (#1414).
README: add conda as a supported package manager . Thanks @avrahamshukron (#1473).
README: Replace yaourt with yay` pacakge manage for archlinux. Thanks @zyansheep (#1494).
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