#!/bin/bash
#
# Copyright © 2016 Michael Drake <tlsa@netsurf-browser.org>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
#   * The above copyright notice and this permission notice shall be included in
#     all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

# Sets the timestamp of files to the last time a commit touched them in
# the given subtree.
#
# Usage: git-date.sh <PATH>
#
# Example: /utils/git-date.sh riscos/distribution

set -e

for FILE in $(git ls-files ${1})
do
    TIME=$(git log --pretty=format:%cd -n 1 --date=iso "$FILE")
    touch -m -d "$TIME" "$FILE"
done