Provide unified logging interface #816
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Provides new logging interface that is ment to unify output that is produced in each part of RetDec decompiler. The interface is designed to provide eazy management of logging into files/tty. Currently each module od decompiler manages logging on its own. This is not sustainable state as change to logging interface is rather difficult.
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Let's run TeamCity builds |
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Fixed error, let's run TeamCity builds again. |
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added 14 commits
July 22, 2020 13:43
This module is now obsolete as all logging mechanisms have been transferred to retdec::io module.
Provides new option [-s|--silent] for retdec-decompiler executable. This option will force retdec not to output anything on stdout.
Provides way to specify Log/Error files to RetDec. This is useful for RetDec plugins that might this way control decompilation output.
Fixes bug provided by fbbff34.
Provides change to log interface. Before this commit logging was done on global objects. Now the logging should be made on temporary objects that are returned from special functions. The reason for this is for usage of colors on output. When temporary object is destructed default color is printed on required interface.
This way we can avoid not intentional usage of the Log interface. All functions of Log are ment to be used like: Log::info() Log::debug() Log::error()
Starting Windows aniversary update Windows terminals provide supprot for ANSI colors. This, however, needs to be enabled manually. More about this can be found here: https://docs.microsoft.com/en-us/windows/console/console-virtual-terminal-sequences?redirectedfrom=MSDN
Provides substitution of __has_include macro to OS_WINDOWS defined in utils/os.h. The reason for this is to maintain a level of consistency in RetDec source code base.
PeterMatula
approved these changes
Jul 23, 2020
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| * Enhancement: Unified logging on stdout/stderr. Added option `--silent`. Printed text is colored only when output is a terminal ([#791](https://github.com/avast/retdec/issues/791). | |||
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As @s3rvac suggested in some other place, it is better to add these entries after the merge to master. It is then possible to reference the PR.
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Plus the risk of running into conflicts is much lower 🙂
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In this PR I would like to introduce changes to the RetDec decompiler logging system. Before these changes each module controlled output on stdout/stderr on its own.
High-level changes:
--silentto turn of logging on stdout."logFile"to the retdec config."errFile"to the retdec config.Changes above are particularly useful for users of the RetDec library. Before this PR there was no easy way to redirect RetDec's output when decompilation was called from
retdec::decompilerfunction.Logging design:
retdec::utils::io::Logwith functionsinfo(),error(),set(...)that control logging objects. More info in documentation.Log::info() << Log::Color::Yellow << "RetDec module" << std::endlLog::error() << Log::Warning << "Unable to allocate stuff" << std::endlWith these changes, colors on output are managed in RetDec (before we used LLVM library). Logger class implemented to print output uses ANSI encoding for colors. This is supported on all POSIX terminals and Windows terminals following the Anniversary update. Changes were tested on Linux, macOS, and Windows. Colors are automatically disabled when output is not a terminal.