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Retrieve and set the last modification date of all files in a git repository. Solution for https://stackoverflow.com/a/55609950/4063462
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#!/bin/sh -e | |
OS=${OS:-`uname`} | |
if [ "$OS" = 'Darwin' ]; then | |
get_touch_time() { | |
date -r ${unixtime} +'%Y%m%d%H%M.%S' | |
} | |
else | |
# default Linux | |
get_touch_time() { | |
date -d @${unixtime} +'%Y%m%d%H%M.%S' | |
} | |
fi | |
# all git files | |
git ls-tree -r --name-only HEAD > .git_ls-tree_r_name-only_HEAD | |
# modified git files | |
git diff --name-only > .git_diff_name-only | |
# minus https://stackoverflow.com/questions/1370996/minus-operation-on-two-files-using-linux-commands | |
# only restore files not modified | |
comm -2 -3 .git_ls-tree_r_name-only_HEAD .git_diff_name-only | while read filename; do | |
unixtime=$(git log -1 --format="%at" -- "${filename}") | |
touchtime=$(get_touch_time) | |
echo ${touchtime} "${filename}" | |
touch -t ${touchtime} "${filename}" | |
done | |
rm .git_ls-tree_r_name-only_HEAD .git_diff_name-only |
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