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nixos/zfs: replace parentheses with braces

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The parentheses prevent the `continue` line from working by running the
enclosed in a subshell -- I noticed that ZFS would start asking me for
my password to encrypted child datasets, even though they were not
specified in `requestEncryptionCredentials`. The following logs would
also be present in the import unit's journal:

    Oct 31 22:13:17 host systemd[1]: Starting Import ZFS pool "pool"...
    Oct 31 22:13:44 host zfs-import-pool-start[3711]: importing ZFS pool "pool"...
    Oct 31 22:13:44 host zfs-import-pool-start[4017]:pool/nix/store/39zij3xcxn4w38v6x8f88bx8y91nv0rm-unit-script-zfs-import-pool-start/bin/zfs-import-pool-start: line 31: continue: only meaningful in a `for', `while', or `until' loop
    Oct 31 22:13:44 host zfs-import-pool-start[4020]:pool/nix/store/39zij3xcxn4w38v6x8f88bx8y91nv0rm-unit-script-zfs-import-pool-start/bin/zfs-import-pool-start: line 31: continue: only meaningful in a `for', `while', or `until' loop
    Oct 31 22:15:14 host zfs-import-pool-start[4023]: Failed to query password: Timer expired
    Oct 31 22:15:14 host zfs-import-pool-start[4024]: Key load error: encryption failure
    Oct 31 22:15:14 host systemd[1]: zfs-import-pool.service: Main process exited, code=exited, status=255/EXCEPTION
    Oct 31 22:15:14 host systemd[1]: zfs-import-pool.service: Failed with result 'exit-code'.
    Oct 31 22:15:14 host systemd[1]: Failed to start Import ZFS pool "pool".
This commit is contained in:
Cole Helbling 2021-11-01 08:18:38 -07:00 committed by tomberek
parent 71e05e9287
commit 516b49155e
1 changed files with 4 additions and 2 deletions
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6
nixos/modules/tasks/filesystems/zfs.nix
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@ -561,7 +561,8 @@ in
then cfgZfs.requestEncryptionCredentials
else cfgZfs.requestEncryptionCredentials != []) ''
${cfgZfs.package}/sbin/zfs list -rHo name,keylocation ${pool} | while IFS=$'\t' read ds kl; do
(${optionalString (!isBool cfgZfs.requestEncryptionCredentials) ''
{
${optionalString (!isBool cfgZfs.requestEncryptionCredentials) ''
if ! echo '${concatStringsSep "\n" cfgZfs.requestEncryptionCredentials}' | grep -qFx "$ds"; then
continue
fi
@ -575,7 +576,8 @@ in
* )
${cfgZfs.package}/sbin/zfs load-key "$ds"
;;
esac) < /dev/null # To protect while read ds kl in case anything reads stdin
esac
} < /dev/null # To protect while read ds kl in case anything reads stdin
done
''}
echo "Successfully imported ${pool}"