nix/home/program/bash/module/Disk.nix

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{ ... }: {
text = ''
# Show only physical drives info.
function pdf() {
df --si | sed -e '1p' -e '/^\/dev\//!d'
}
# Show total size in SI.
# Current dir by default.
# Usage: tdu [DIRS]
function tdu() {
du -sh --si "''${@}"
}
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# Unlock encrypted disk file.
# Usage: unlock <FILE> <DIR>
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function unlock() {
if [[ "''${UID}" != 0 ]]; then
_error "Must be root."
return 2
fi
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local file="''${1}"
local dir="''${2}"
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if [[ "''${dir}" = "" ]]; then
help unlock
return 2
fi
local name=$(parse_alnum "''${file##*/}")
cryptsetup open "''${file}" "''${name}"
mount "/dev/mapper/''${name}" "''${dir}"
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}
# Unlock encrypted disk file.
# Usage: unlock <FILE>
# function unlock() {
# _filter() {
# sed -e "s/.*\ a[st]\ //" -e "s/\.$//"
# }
# local file="''${1}"
# local name=$(parse_alnum ''${file} | _filter)
# local loop=$(udisksctl loop-setup -f "''${file}" | _filter)
# local unlock=$(udisksctl unlock -b "''${loop}" | _filter)
# local mount=$(udisksctl mount -b "''${unlock}" | _filter)
# [ -L "./''${name}" ] || ln -s "''${mount}" "./''${name}"
# cd "''${mount}"
# }
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'';
}