# folder and files generated at the Seventh Session

cd ${HOME}/Desktop

mkdir TEST_ORIG

ffmpeg -lavfi testsrc2 -t 10 -pix_fmt rgb48 -start_number 86400 TEST_ORIG/%08d.tif



## WORKING FOLDER

# make a checksum manifest of the original folder
# using the exercise script from the Seventh Session ...
# ... otherwise this cryptic one-liner:

echo "Generate checksum manifest of 'TEST_ORIG' (at origin)."  #### for fun ####
find TEST_ORIG -type f -exec md5sum {} + | sed "s#TEST_ORIG/*##" > correct_folder.txt

# copy the original folder to a working folder

echo "Copy 'TEST_ORIG' to 'TEST_WORK'."  #### for fun ####
cp -R TEST_ORIG TEST_WORK

# verify that there are no missing files in the working folder

./script_7.sh -i TEST_WORK

# make a checksum manifest of the working folder
# using the exercise script from the Seventh Session ...
# ... otherwise this cryptic one-liner:

echo "Generate checksum manifest of 'TEST_WORK'."  #### for fun ####
find TEST_WORK -type f -exec md5sum {} + | sed "s#TEST_WORK/*##" > TEST_WORK_md5.txt



## BROKEN WORKING FOLDER

# delete five files from the working folder

echo "Delete 5 files from 'TEST_WORK'."  #### for fun ####
find TEST_WORK -type f | sort -R | tail -n 5 | while read f; do rm ${f}; done

# verify which files are now missing in the broken folder

./script_7.sh -i TEST_WORK

# update the checksum manifest of the broken folder

./script_9.sh -i TEST_WORK

# make a checksum manifest of the broken folder
# using the exercise script from the Seventh Session ...
# ... otherwise this cryptic one-liner:

echo "Generate checksum manifest of 'TEST_WORK' (missing files)."  #### for fun ####
find TEST_WORK -type f -exec md5sum {} + | sed "s#TEST_WORK/*##" > broken_folder.txt



## FIXED WORKING FOLDER

# fix the broken folder's content by adding the missing files

echo "Fix 'TEST_WORK' with files from 'TEST_ORIG'."  #### for fun ####
for f in $(cat TEST_WORK_missing.txt); do cp -v "TEST_ORIG/${f}" "TEST_WORK"; done

# verify that no files are missing anymore in the fixed folder

./script_7.sh -i TEST_WORK

# update the checksum manifest of the fixed folder

./script_9.sh -i TEST_WORK

# make a checksum manifest of the fixed folder
# using the exercise script from the Seventh Session ...
# ... otherwise this cryptic one-liner:

echo "Generate checksum manifest of 'TEST_WORK' (after fixing)."  #### for fun ####
find TEST_WORK -type f -exec md5sum {} + | sed "s#TEST_WORK/*##" > fixed_folder.txt



## COMPARE THE CHECKSUM MANIFESTS

# show manifest differencies between original and broken folders

echo "Original folder vs. broken folder:"  #### for fun ####
diff -s <(cat correct_folder.txt | sort) <(cat broken_folder.txt | sort)

# show manifest differencies between broken and fixed folders

echo "Broken folder vs. fixed folder:"  #### for fun ####
diff -s <(cat broken_folder.txt | sort) <(cat fixed_folder.txt | sort)

# show manifest differencies between original and fixed folders

echo "Original folder vs. fixed folder:"  #### for fun ####
diff -s <(cat correct_folder.txt | sort) <(cat fixed_folder.txt | sort)