Prefer gnu-stat if available

Busybox stat is not enough but is we had a working alternatives, the default
stat command should be gnu stat as in older versions of Turris OS. So if there
is a gnu-stat, use that one as it is bound to work, if not, let's assume the
stat is linking to the correct implementation (dependencies are in package) and
we are running either in test environment or on old/new Turris OS version.

foris_controller_backends/storage/__init__.py

@@ -26,8 +26,12 @@ class SettingsUci(BaseCmdLine, BaseFile):
         old_uuid = ""
         uuid = get_option_named(data, "storage", "srv", "uuid", "")
         raid = get_option_named(data, "storage", "srv", "raid", "custom")
+        try:
+            stat = self._trigger_and_parse(["which", "gnu-stat"], r"(/.*/gnu-stat)")
+        except BackendCommandFailed:
+            stat = "stat"
         # get mountpoint of /srv
-        srv_mount_point = self._trigger_and_parse(["stat", "-c", "%m", "/srv"], r"\s*(.*)\s*")
+        srv_mount_point = self._trigger_and_parse([stat, "-c", "%m", "/srv"], r"\s*(.*)\s*")
 
         try:
             old_device = self._read_and_parse(

scripts/format_and_set_srv.sh

@@ -7,6 +7,8 @@ config_get UUID srv uuid
 config_get RAID srv raid custom
 
 FROM_SCRATCH=""
+STAT="$(which gnu-stat)"
+[ -n "$STAT" ] || STAT="$(which stat)"
 SRV_MNT_PNT="/srv"
 # Decide how much we want to debug
 [ "$DBG" = 0 ] || set -x
@@ -125,7 +127,7 @@ if [ -z "$UUID" ]; then
    shift
 
    # Commit configuration
-   SRV="$(stat -c %m /srv/)"
+   SRV="$("$STAT" -c %m /srv/)"
    SRV_DEV=""
    SRV_UUID=""
    if grep -q '^ubi[^[:blank:]]* '"$SRV"' .*' /proc/mounts || \
@@ -142,7 +144,7 @@ if [ -z "$UUID" ]; then
 fi
 
 # Make sure we have /srv mounted somewhere
-if [ "$(stat -c %m /srv/)" = "$(stat -c %m /)" ]; then
+if [ "$("$STAT" -c %m /srv/)" = "$("$STAT" -c %m /)" ]; then
    SRV_MNT_PNT="/tmp/storage_plugin/tmpdir"
    mkdir -p "$SRV_MNT_PNT"
    DEV="$(blkid -c /dev/null -U "$UUID")"