mirror of
https://github.com/nix-community/disko.git
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84 lines
2.1 KiB
Plaintext
84 lines
2.1 KiB
Plaintext
# since lsblk lacks zfs support, we have to do it this way
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def remove:
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if .fstype == "zfs_member" then
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"zpool destroy -f \(.label)"
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elif .fstype == "LVM2_member" then
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[
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"vg=$(pvs \(.path) --noheadings --options vg_name | grep -o '[a-zA-Z0-9-]*')",
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"vgchange -a n \"$vg\"",
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"vgremove -f \"$vg\""
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]
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elif .fstype == "swap" then
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"swapoff \(.path)"
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elif .fstype == null then
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# maybe its zfs
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[
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# the next line has some horrible escaping
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"zpool=$(zdb -l \(.path) | sed -nr $'s/ +name: \\'(.*)\\'/\\\\1/p')",
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"if [[ -n \"${zpool}\" ]]; then zpool destroy -f \"$zpool\"; fi",
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"unset zpool"
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]
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else
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[]
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end
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;
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def deactivate:
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if .type == "disk" or .type == "loop" then
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[
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# If this disk is a member of raid, stop that raid
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"md_dev=$(lsblk \(.path) -l -p -o type,name | awk 'match($1,\"raid.*\") {print $2}')",
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"if [[ -n \"${md_dev}\" ]]; then umount \"$md_dev\"; mdadm --stop \"$md_dev\"; fi",
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# Remove all file-systems and other magic strings
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"wipefs --all -f \(.path)",
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# Remove the MBR bootstrap code
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"dd if=/dev/zero of=\(.path) bs=440 count=1"
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]
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elif .type == "part" then
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[
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"wipefs --all -f \(.path)"
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]
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elif .type == "crypt" then
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[
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"cryptsetup luksClose \(.path)",
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"wipefs --all -f \(.path)"
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]
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elif .type == "lvm" then
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(.name | split("-")[0]) as $vgname |
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(.name | split("-")[1]) as $lvname |
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[
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"lvremove -fy \($vgname)/\($lvname)"
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]
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elif (.type | contains("raid")) then
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[
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"mdadm --stop \(.name)"
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]
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else
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["echo Warning: unknown type '\(.type)'. Consider handling this in https://github.com/nix-community/disko/blob/master/disk-deactivate/disk-deactivate.jq"]
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end
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;
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def walk:
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[
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(.mountpoints[] | select(. != null) | "umount -R \(.)"),
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((.children // []) | map(walk)),
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remove,
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deactivate
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]
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;
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def init:
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"/dev/\(.name)" as $disk |
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if $disk == $disk_to_clear then
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[
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"set -fu",
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walk
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]
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else
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[]
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end
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;
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.blockdevices | map(init) | flatten | join("\n")
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