prerequisites

This software requires:

ROOT 6
gls-lib (GNU scientific libraries)
cmake

installation

enter your HAL directory, and make build directory, enter there:
```
cd HAL
mkdir build
cd build
```

Now call cmake to build software:

cmake -DCMAKE_INSTALL_PREFIX=[place to install] .. 


make & make install
#optionally to use [N] cores
make -j[N] && make install

Usually i install HAL in "inst" directory next to "build" directory:

cmake -DCMAKE_INSTALL_PREFIX=../inst ..

usage

To use hal you should source the proper file:

source [INSTALL_DIRECTORY]/bin/hal_config.sh

Additional parameters for cmake

Sometimes is required to set some additional parameters to HAL:


CMAKE_CXX_STANDARD - sets cmake standard  by hand (default is 17) - note: this standard should be compatible with standard used for ROOT compilation. To check ROOT compilation flag type 
<root-config –cflags> e.g.: if output contains -std=c++17 it means that your ROOT was compiled with standard 17. In most cases it is not necessary to set this flag
JSROOT_DIR=[path] - sets [path] to custom JS ROOT (can be used if HAL is not compatible with JSROOT installed with ROOT)
FAIRROOT=OFF - disables compilation with FairRoot even if FairRoot is found in system
EXAMPLES=ON - enable examples

Note: to use the option set -D[option] flag e.g., -DEXAMPLES=ON during calling cmake


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Applications

This software contains not only libraries but also few applications:
hal-report generates HTML report, unfortunatelly jsroot will not work directly you have to setup a sever or pretend that you
are setup the server (e.g., python3 -m http.server called inside of report directory)
hal-merger for efficient merging of many HAL files
hal-jobs to submit jobs on cluster without painfull BASH
hal-cmake a helper for fast buidlign libraries/classes for cuts

To do


simplification of buffer class - using pointers instead of int maps?
std::fuction for custom class cuts?
generator of simple cuts on macro level