# First Meson Build on Ubuntu
### --prepare & reference--
> github: https://github.com/mesonbuild/meson
>
> Need:
> Python 3.5+
> Ninja 1.5+
>
> Installing: see github's *Installing from source*
>
> Tutorial: https://mesonbuild.com/Tutorial.html

### --First program build by meson--
*-main.cpp-*
<pre>
#include <iostream>

int main(){
std::cout << "first print~~" << std::endl;

return 0;
}
</pre>

*-meson.build-*
<pre>
project('firstmeson', 'cpp')
executable('testmeson', 'main.cpp')
</pre>

#### --build step--
1. meson builddir
2. cd builddir
3. ninja -> generate exec file
4. ./testmeson

#### -test exec-
**if want to use ninja test(test before execute code to see errors)
modify meson.build
<pre>
project('tutorial', 'cpp')
exec = executable('testmeson', 'main.cpp')
test('simple test', exec)
</pre>
and command under builddir
<pre>ninja test</pre>

test result will like this:
<pre><font color="#8AE234"><b>harvey@harvey-desktop</b></font>:<font color="#729FCF"><b>~/recipes-demo/testmeson/build</b></font>$ ninja test
[0/1] Running all tests.
1/1 simple test OK 0.00 s

Ok: 1
Expected Fail: 0
Fail: 0
Unexpected Pass: 0
Skipped: 0
Timeout: 0

Full log written to /home/harvey/recipes-demo/testmeson/build/meson-logs/testlog.txt
</pre>