From 604a83cdeeb7774338f4f6088ff4c02235946cd0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Motiejus=20Jak=C5=A1tys?= <motiejus@jakstys.lt>
Date: Thu, 5 Jan 2023 14:59:24 +0200
Subject: [PATCH] Revert "sanoid: replace paths with mountpoints"

This reverts commit 32f786946011d3636c6947eddc9a713921ef91ad.
---
 configuration.nix |  4 ++--
 scripts/snaplink  | 12 ++++++------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/configuration.nix b/configuration.nix
index d7b7720..54d74d5 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -87,8 +87,8 @@ let ssh_pubkeys = {
         autoprune = true;
         post_snapshot_script = "/var/src/snaplink";
       };
-      datasets."/home".use_template = [ "prod" ];
-      datasets."/var".use_template = [ "prod" ];
+      datasets."rpool/nixos/home".use_template = [ "prod" ];
+      datasets."rpool/nixos/var".use_template = [ "prod" ];
       extraArgs = [ "--verbose" ];
     };
 
diff --git a/scripts/snaplink b/scripts/snaplink
index 7c0b278..1250dab 100755
--- a/scripts/snaplink
+++ b/scripts/snaplink
@@ -1,10 +1,10 @@
 #!/usr/bin/env bash
 set -euo pipefail
-snap_path="$SANOID_TARGET/.zfs/snapshot/$SANOID_SNAPNAME"
-[[ -d "$snap_path" ]] || {
-    >&2 echo "expected to find a directory in $snap_path"
-    exit 1
-}
-link_path="$SANOID_TARGET/.snapshot-latest"
+_fatal() { >&2 echo "ERROR: $*"; exit 1; }
+mountpoint=$(zfs list -H -t filesystem -o mountpoint "$SANOID_TARGET")
+[[ -n "$mountpoint" ]] || _fatal "expected non-empty $SANOID_TARGET"
+snap_path="$mountpoint/.zfs/snapshot/$SANOID_SNAPNAME"
+[[ -d "$snap_path" ]] || _fatal "expected to find a directory in $snap_path"
+link_path="$mountpoint/.snapshot-latest"
 ln -sf "$snap_path" "$link_path"
 >&2 printf "successfully created %s -> %s\n" "$link_path" "$snap_path"