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set -uo pipefail
shopt -s globstar
echo -e ".gitignore validation..."
# Get a list of files that exist in the repo but are ignored.
# The --verbose flag also includes files un-ignored via ! prefixes.
# We filter those out with a somewhat awkward `awk` directive.
# (Explanation: Split each line by : delimiters,
# see if the actual gitignore line shown in the third field starts with !,
# if it doesn't, print it.)
# ignorecase for the sake of Windows users.
output=$(git -c core.ignorecase=true check-ignore --verbose --no-index **/* | \
awk -F ':' '{ if ($3 !~ /^!/) print $0 }')
# Then we take this result and return success if it's empty.
if [ -z "$output" ]; then
exit 0
else
# And print the result if it isn't.
echo "$output"
exit 1
fi
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