#====
# Getting the extension
#====

Assuming you are in the Greensotne3 top-level (i.e. GSDL3SRCHOME) directory,
(if not already done so) this extension can be checked out as follows:

  svn co https://svn.greenstone.org/gs3-extensions/mars-src/trunk ext/mars

The extension is desigend to combine with an interface and site of the same name:

  cd web/sites
  svn co https://svn.greenstone.org/gs3-installations/mars/trunk/sites/mars
  cd ../interfaces/
  svn co https://svn.greenstone.org/gs3-installations/mars/trunk/interfaces/mars
  cd ../..
    
To build collections you need to have installed:

  python3 (developer's version, which includes /usr/include/.../Python.h)

To compile the code you need to have installed:

  nasm
  git (optional -- essentia tar-ball is provided, but its './waf configure' runs 'git pull' to be fully up to date)

# Static libraries for -lc, -lm, -lpthread to build essentia tools statically
  
  sudo yum install glibc-static
  
For the 'yum' package manager, if needed:

  sudo yum install python3
  sudo yum install python3-devel
  sudo yum install nasm

  sudo yum install git


#====
# Compiling the extension
#====

#-<>
#  <One-time-only>
#--

cd ext/mars
./CREATE-VENV-PYTHON3.sh
cd ../..

ln -s ext/mars/SETUP-TOP-LEVEL.sh SETUP.sh
ln -s ext/mars/DEVEL-TOP-LEVEL.sh DEVEL.sh

# If your python does not already have 'six', 'sklearn', or 'matplotlib' then:
source ./SETUP.sh
#pip install six
#pip install sklearn
#pip install matplotlib



#--
#  </One-time-only>
#</>

source ./SETUP.sh
cd ext/mars
./CASCADE-MAKE.sh


####=======
# Currently bails on essentia if:
####=======


#Checking for 'libavcodec' >= 55.34.1     : not found
#Checking for 'libavformat'               : not found
#Checking for 'libavutil'                 : not found
#Checking for 'libavresample'             : not found

pip install samplerate

Checking for 'samplerate'                : not found
Checking for 'taglib' >= 1.9             : not found
Checking for 'yaml-0.1'                  : not found
Checking for 'fftw3f'                    : not found
Checking for 'libchromaprint'            : not found


and python-config missing

####=======


To build an Essentia-processing based collection


  cd web/sites/mars/collect/amc-essentia
  ./IMPORT.sh -maxdocs 2
  ./BUILDCOL.sh
  ./ACTIVATE.sh



#====

More (but scrapy) notes below


====

Getting started with running Greenstone3+Mars commands

Setting up your environment

#  activate python3
#  source ./gs3-setup.bash

# Above now superseded with:

  source ./SETUP.sh
  




# Pick which version of Python you want to work with (v2 or v3)

  source ./$GSDLOS/virtualenv-python2/bin/activate

  source ./$GSDLOS/virtualenv-python3/bin/activate

# To run essentia python tests need to have install sklearn

 pip install sklearn

# Then can run

 cd packages/essentia-full-git 
 python ./waf run_python_tests


# To build with Greenstone, need to teach virtualenv-python where Essensia was installed,
# e.g.

  export PYTHONPATH=$GEXT_MARS_INSTALLED/lib/python2.7/site-packages

  export PYTHONPATH=$GEXT_MARS_INSTALLED/lib/python3.7/site-packages






# On Macrocarpa, the follow compiles up with python2

 cd src/essentia

 ./waf configure --with-examples --with-python --prefix=/tmp/essentia 
 ./waf
 ./waf install