69 lines
1.4 KiB
Bash
69 lines
1.4 KiB
Bash
# Save file checksums.
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checksum_create()
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{
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local file=".checksum"
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# Error if checksum already exists.
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if [[ -f "${file}" ]]; then
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echo -e "${color_bred}Checksum already exists.${color_default}"
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return 1
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fi
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find -type f | parallel -j $(_core_count) -- sha1sum {} >> "${file}"
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sed -i "/${file}/d" ${file}
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}
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# Check stored values against actual files.
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checksum_check()
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{
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local file=".checksum"
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local failed=0
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cat "${file}" | parallel -j $(_core_count) -- _checksum_check {} || ((failed++))
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if [[ ${failed} = 0 ]]; then
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echo -e "${color_green}All successful.${color_default}"
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return 0
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else
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# echo -e "${color_bred}Items failed to validate: ${failed}.${color_default}"
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return 1
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fi
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}
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# Check old values and create new one if all was fine.
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checksum_update()
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{
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local file=".checksum"
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if [[ ! -f "${file}" ]]; then
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echo -e "${color_bred}Checksum doesn't exist.${color_default}"
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return 1
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fi
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checksum_check && rm "${file}" && checksum_create
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}
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_checksum_check()
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{
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local file="${1##*\ \ }"
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local stored="${1%%\ \ *}"
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local failed=0
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# Skip if no file.
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[[ -f "${file}" ]] || return 0
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# Check file hash.
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local actual=$(sha1sum "${file}")
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actual="${actual%%\ \ *}"
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# Compare values.
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if [[ "${stored}" != "${actual}" ]]; then
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echo -e "${color_bred}${file}: Failed.${color_default}"
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return 1
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fi
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return 0
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}
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export -f _checksum_check
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