# 💡 **ARRAKIS**


## Installation

1.- Clone this repository by typing the command:

```bash
git clone git@github.com:Neutron-Calibration-in-DUNE/LArSoftArrakis.git
```

2.- Install ```Arrakis``` and ```LArSoft``` by running the script (see [scripts folder](https://github.com/Neutron-Calibration-in-DUNE/LArSoftArrakis/tree/main/scripts)):

```bash
[<user>@dunebuildXX:<LArSoftArrakis_DIR>]$ source scripts/prebuild_arrakis.sh 
```

Depending on which tagged version of LArSoftArrakis you are using, the associated LArSoft version should be defined in the ```prebuild_arrakis.sh``` file, e.g.

```bash
#--------------------Versioning---------------------#
# specify the version of the larsoft packages.
LARSOFT_VERSION=v09_75_00
DUNE_VERSION=v09_75_00d00
QUALS=e20:prof
```

If this step is successful you should see,
```bash
====================SETUP SUCCESSFUL====================
Now you can proceed to checkout or make desired changes to Arrakis itself and then run the <rebuild-arrakis> bash function.
```

3.- Run the ```install_arrakis.sh``` script:
    
```bash
[<user>@dunebuildXX:<LArSoftArrakis_DIR>]$ source scripts/install_arrakis.sh 
```

Which will compile Arrakis with the ```duneana``` and ```dunecore``` source.  

4.- Update ```Arrakis```. Once changes have been made to Arrakis, the LArsoftArrakis development directory can download and compile those changes using the ```update_arrakis.sh``` script:

```bash
[<user>@dunebuildXX:<LArSoftArrakis_DIR>]$ source scripts/update_arrakis.sh 
```

## Usage