58 lines
1.7 KiB
Text
58 lines
1.7 KiB
Text
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#!/usr/bin/env bash
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# yadm - Yet Another Dotfiles Manager
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# Copyright (C) 2015-2019 Tim Byrne and Martin Zuther
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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YADM_DIRECTORY=$(dirname $YADM_HOOK_REPO)
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YADM_CHECKSUMS=$YADM_DIRECTORY/files.checksums
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# check if "shasum" exists
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if command -v shasum > /dev/null; then
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# check if "shasum" supports SHA-512/256 algorithm
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echo -n | shasum --algorithm 512256 2>&1 1> /dev/null
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if [ $? -ne 0 ]; then
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echo
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echo "WARNING: \"shasum\" does not support SHA-512/256. No checksums were created."
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exit $YADM_HOOK_EXIT
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fi
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# empty checksum file
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echo -n > $YADM_CHECKSUMS
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# calculate checksums for encrypted files
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for included in ${YADM_ENCRYPT_INCLUDE_FILES[@]}; do
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shasum --algorithm 512256 $included >> $YADM_CHECKSUMS
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ERROR_CODE=$?
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# signal errors
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if [ $ERROR_CODE -ne 0 ]; then
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exit $ERROR_CODE
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fi
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done
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echo "Wrote checksums: $YADM_CHECKSUMS (SHA-512/256)"
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else
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echo
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echo "WARNING: command \"shasum\" not found. No checksums were created."
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exit $YADM_HOOK_EXIT
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fi
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# return exit status of the yadm command
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exit $YADM_HOOK_EXIT
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