Clean jupyter notebooks

clean-notebook-command.sh

# http://timstaley.co.uk/posts/making-git-and-jupyter-notebooks-play-nice/
# https://stedolan.github.io/jq/

jq --indent 1 \
    '
    (.cells[] | select(has("outputs")) | .outputs) = []
    | (.cells[] | select(has("execution_count")) | .execution_count) = null
    | .metadata = {"language_info": {"name":"python", "pygments_lexer": "ipython3"}}
    | .cells[].metadata = {}
    ' notebook.ipynb
    
 # annoyingly, this prints to stdout and *can't* be redirected to the same file
 # as the input without breaking things. 

clean-notebook.sh

#!/bin/bash
# http://timstaley.co.uk/posts/making-git-and-jupyter-notebooks-play-nice/
# https://stedolan.github.io/jq/

workingfile=`mktemp`
jq --indent 1 \
    '
    (.cells[] | select(has("outputs")) | .outputs) = []
    | (.cells[] | select(has("execution_count")) | .execution_count) = null
    | .metadata = {"language_info": {"name":"python", "pygments_lexer": "ipython3"}}
    | .cells[].metadata = {}
    ' $1 > $workingfile
mv $workingfile $1