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#!/bin/sh
#
# strip output of IPython Notebooks
# add this as `.git/hooks/pre-commit`
# to run every time you commit a notebook
#
# requires `nbstripout` to be available on your PATH
#
if git rev-parse --verify HEAD >/dev/null 2>&1; then
against=HEAD
else
# Initial commit: diff against an empty tree object
against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
fi
# Find notebooks to be committed
(
IFS='
'
NBS=$(git diff-index -z --cached $against --name-only | grep '.ipynb$' | uniq)
for NB in $NBS ; do
echo "Removing outputs from $NB"
nbstripout "$NB"
git add "$NB"
done
)
exec git diff-index --check --cached $against --
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