# cpp_logger_assignment

Programming exercise to implement a logger class


Build it with:

```
cmake .
make
./cpplogger
```

And/or run unit-tests, using [catch2](https://github.com/catchorg/Catch2) as a submodule.


```
git submodule update --init --recursive
cmake . -DBUILD_TESTS=ON
make
./cpplogger_test
```

## The binary can be used as a command line tool:


```
./cpplogger
Usage: cpplogger [OPTION]
Logs the input (till EOF) to the console or to a file.

Options:
        -c,             log to console
        -f FILE         log to FILE
        -t,             prefix lines with timestamp
        -n,             prefix lines with hostname
        -u,             prefix lines with user name
        -h              print this help

Option -c and -f are mutually exclusive, specify one.

Homepage: <https://gitea.matetelki.eu/denes/cpp_logger_assignment>
Author: Denes Matetelki <denes@matetelki.com>
```

Examples:

```
./cpplogger -t -u -c
hello world
Mon Nov 11 16:01:03 2019 dmatetelki hello world
how is it going
Mon Nov 11 16:01:09 2019 dmatetelki how is it going<CTRL+D>
```

```
cat /tmp/this.txt | ./cpplogger -f /tmp/that.txt
```

## Or used as a library

```
#include <Logger.hpp>

Logger::getInstance()->setStream(std::ostream* os);

Logger::getInstance()->setPrintTimeStamp(true);
Logger::getInstance()->setPrintUserName(false);

LOG  << word1 << word2 << variable << END;
```