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11_kernels.sh
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Tue, Jul 16, 05:06

11_kernels.sh
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#!/bin/bash
function my_kernels_help() {
if [ $# -lt 1 ]; then
my_kernels_help list
echo
my_kernels_help create
echo
my_kernels_help remove
return
fi
case $1 in
"list")
echo -e "${Yellow}USAGE: my_kernels_list${NoColor}"
echo "This helper will list all the currently installed jupyter kernels."
;;
"create")
echo -e "${Yellow}USAGE: my_kernels_create name [display_name]${NoColor}"
echo "This helper will create a new kernel for the currently activated virtual environment."
echo " - name: name of the kernel you want to create"
echo " - display_name: name of the kernel, as you want it to appear in the menus, etc."
echo " e.g.: my_kernels_create my_kernel_py3 \"Python3 (my_venv)\""
;;
"remove")
echo -e "${Yellow}USAGE: my_kernels_remove name${NoColor}"
echo "This helper will remove a kernel from the installed kernels list."
echo " - name: name of the kernel you want to remove"
echo " e.g.: my_kernels_remoce my_kernel_py3"
;;
esac
}
function my_kernels_list() {
echo "Available kernels:"
KL=$(jupyter kernelspec list | tail -n+2 | sed 's/^\s*//g' | sed 's/\s\+/:/g' | tr '\n' '~' | sed 's/~$//');
for l in $(echo $KL | tr '~' '\n'); do
name=$(echo $l | cut -d: -f1)
path=$(echo $l | cut -d: -f2)
if [[ "$path" =~ /usr/* ]]; then
str=" ${Red}%-10s${NoColor} %s (default)\n"
else
str=" ${Yellow}%-10s${NoColor} %s\n"
fi
printf " $str" "$name" "$path"
done
return 0
}
function my_kernels_create() {
if [ $# -lt 1 ] || [ "$1" == "help" ] || [ "$1" == "--help" ]; then
my_kernels_help 'create'
return
fi
p3=$(which python3)
if [ "$p3" == "/usr/bin/python3" ]; then
echo "You did not activate a virtual environmenti first!" 1>&2
echo "Please activate a virtual environment for the kernel you wish to install." 1>&2
echo "See \"my_venvs_help\" or refer to the documentation." 1>&2
my_kernels_help 'create'
return
fi
venv=$(echo $p3 | sed 's?/bin/?~?g' | cut -d '~' -f 1)
name=$1
dname=${2:-$name}
eval $p3 -m ipykernel install --user --name \"$name\" --display-name \"$dname\"
return $?
}
function my_kernels_remove() {
if [ $# -lt 1 ] || [ "$1" == "help" ] || [ "$1" == "--help" ]; then
echo "Please provide the name of the kernel you want to remove." 1>&2
my_kernels_help 'remove'
return
fi
name=$1
jupyter kernelspec remove $name
return $?
}
# EOF

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