install_anaconda3

#! /usr/bin/env bash
#
# install anaconda3, plus a sourceable python_start.$SHELL script
#
# See also https://repo.anaconda.com/archive for old versions
#
# 18-mar-2024  NEMO/PJT original
# 14-oct-2024  NEMO/PJT - older ones now fail on newer linux versions

#--HELP
# default parameters
    url=https://repo.anaconda.com/archive/Anaconda3-%s-%s-%s.sh
                   # anaconda3 versions available:
version=2020.07    # 3.8.3
version=2020.11    # 3.8.5
version=2021.04    # 3.8.8  failing on U22+
version=2021.11    # 3.9.8  failing on U22+ - sphinx not working?
version=2022.05    # 3.9.12 sphinx?
version=2022.10    # 3.9.13 sphinx
version=2023.03-0  # 3.10.9
version=2023.03-1  # 3.10.14  ok 
version=2023.07-2  # 3.11.4
version=2023.09-0  # 3.11.5
version=2024.02-1  # 3.11.7
version=2024.06-1  # 3.12.4


  dir=$(pwd)/anaconda3       # where anaconda will be located
 wget=wget                   # use wgetc is you have my cashing version (wget=curl is also allowed)
   os=$(uname -s)            # Handles Linux or Darwin, sorry no Windows
  cpu=$(uname -m)            # Handles Linux or Darwin, sorry no Windows
  dry=0                      # dry run?

# At the conclusion of the install, sourceable python_start.[c]sh scripts
# are placed in the root directory (dir=) of anaconda3
    
#--HELP

# some help?    
 if [ "$1" == "--help" ] || [ "$1" == "-h" ]; then
    set +x
    awk 'BEGIN{s=0} {if ($1=="#--HELP") s=1-s;  else if(s) print $0; }' $0
    exit 0
fi
   
# override parameters
for arg in "$@"; do
  export "$arg"
done


if [ "$os" = "Darwin" ]; then
    os=MacOSX
fi

mc3=$(printf $url $version $os $cpu)
msh=$(basename $mc3)

if [ $dry = 1 ]; then
    echo $mc3
    exit 0
fi

if [ -d $dir ]; then
    echo "$dir already exists"
    echo "Remove this directory, or use a new dir="
    exit 1
fi

if [ ! -e $msh ]; then
    if [ $wget = "curl" ]; then
	# curl $mc3 -o $msh
	curl -OL $mc3
    else
	$wget $mc3 
    fi
fi

if [ ! -e $msh ]; then
    echo "File $msh not found. Wrong version=$version ?"
    exit 0
fi

echo "Using $msh"
bash $msh -b -p $dir

export PATH="$dir/bin:$PATH"
conda update -y conda
pip3 install --upgrade pip

#    ensure we have a bash kernel in jupyter notebooks
pip install bash_kernel
python -m bash_kernel.install

#    write sourceable shell startup recipes
echo "set path = ($dir/bin "'$path); rehash'  > $dir/python_start.csh
echo "export PATH=${dir}/bin:"'$PATH'         > $dir/python_start.sh

pip freeze > $dir/freeze.log
echo "Created python_start files for $version in $dir ; no modifications were made to your HOME startup files!"
python --version
echo "typically you would need to "
echo "      source $dir/python_start.sh"
echo "to add this python to your shell environment. A csh version also exists"