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Kaleidoscope/bin/set-timestamps-from-git

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#!/bin/bash -e
# This script sets all of the files inside src and example to have mtimes
# that match the times of the last git commit that touched each file
# This can be useful when build tools depend on file timestamps to
# make caching decisions
for file in `find src examples -type f`
do
timestamp=$(git log --pretty=format:%ad --date=format:%Y%m%d%H%M.%S -n 1 HEAD "$file" 2> /dev/null)
if [ "x$timestamp" != "x" ]; then
touch -t "$timestamp" "$file"
fi
done