pack-private

#!/bin/bash
#
# Pack private/ subfolder in challenge folders.
# Nothing bad happens if there isn't an private/ subfolder.
# The resulting archive name is challenge_path + md5sum.tar.
# If no argument, go through all category folders in the $categories
# variable (defined in config).
# If one or more arguments, go through all of them (they are challenge
# folders.

# Load configuration (used by other scripts).
source config

# Use temporary folder to store archive files before packing.
tmpdir=$(mktemp -d)

# Pack challenge. Function argument is path to challenge folder.
pack_challenge()
{
    challenge_path="$1"
    if test -d "$challenge_path"/private; then
        echo "Packing private for $challenge_path ..."
        base=$(basename "$challenge_path")
        cp -r "$challenge_path"/private "$tmpdir"/"$base"
        # Use --mtime option to tar to use the same mtime (defined
        # in config) and ensure the same md5sum for the .tar file.
        tar --mtime="$tar_mtime" -C "$tmpdir" -cf "$base".tar "$base"
        sum=$(md5sum "$base".tar | cut -d ' ' -f 1)
        mv "$base".tar "$base"_private_"$sum".tar
    fi
}

if test $# -eq 0; then
    for categ in $categories; do
        for challenge_path in "$categ"/*; do
            pack_challenge "$challenge_path"
        done
    done
    rm -r "$tmpdir"
    exit 0
else
    for challenge_path in $@; do
        pack_challenge "$challenge_path"
    done
fi

rm -r "$tmpdir"