tools/autoformat_file

#!/bin/bash

set -ueo pipefail
FILE=$1

echo "will update $FILE"

echo $LINENO $?
pyupgrade --py36-plus --exit-zero-even-if-changed $FILE

echo $LINENO $?
git commit -am"Apply pyupgrade to $FILE

    pyupgrade --py36-plus $FILE

To ignore those changes when using git blame see the content of
.git-blame-ignore-revs"

HASH=$(git rev-parse HEAD)

echo "$HASH # apply pyupgrade to $FILE" >> .git-blame-ignore-revs

git commit -am'Update .git-blame-ignore-revs with previous commit'

#####

black --target-version py36 $FILE


git commit -am"Apply black to $FILE

    black --target-version py36 $FILE

To ignore those changes when using git blame see the content of
.git-blame-ignore-revs"

HASH=$(git rev-parse HEAD)

echo "$HASH # apply black to $FILE" >> .git-blame-ignore-revs

git commit -am'Update .git-blame-ignore-revs with previous commit'

echo 
echo "Updating, reformatting and adding to .git-blame-ignore-revs successful"