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feat: share clients — picker enhancements, unmount fixes, confirm default-y convention

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- mountpoint picker: synthetic (as on server) candidate + n=new mkdir flow
- unmount-by-pick via findmnt enumeration with confirm
- cmd_unmount idle-persisted branch exit 0 → return 0 + actionable guidance
- all menu handlers normalized … || true
- confirm() rewrite: default-y on Enter, EOF fail-closed, case-insensitive
- latent compose "Y" bug fixed
- DEV.md convention doc for confirm semantics
This commit is contained in:
Your Name
2026-08-25 08:39:29 -04:00
parent 692cb6b362
commit 4173fc61e3
5 changed files with 440 additions and 64 deletions
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bin/pos-share-nfs-client
+185 -24
View File
@@ -21,7 +21,8 @@ Mount and manage NFS shares from remote servers (nfs-common).
Commands:
mount <server:export> <local-dir> One-shot mount (creates local-dir if needed)
unmount <local-dir> Unmount the share
unmount <local-dir> Unmount the share (idempotent: rc 0 when
nothing is mounted)
list Show active NFS mounts
persist <server:export> <local-dir> Persistent mount via a systemd .mount unit
(ordered after network-online.target)
@@ -72,13 +73,36 @@ cmd_unmount() {
validate_dir "$where"
if ! findmnt -r -n -o TARGET -t nfs,nfs4 2>/dev/null | grep -qxF "$where"; then
log "$where is not mounted as NFS — nothing to do"
# Idempotent no-op — rc 0 whether or not a unit exists. A persisted
# boot-time .mount that is not currently mounted usually means the
# unit failed or was stopped; say so instead of a bare nothing-to-do.
if persisted_nfs_at "$where"; then
warn "$where has a persistent NFS mount unit (${PERSISTED_UNIT}) — not currently mounted."
log "Check it: systemctl status ${PERSISTED_UNIT%.mount} — or remove the persistence: menu option 5 (pos share nfs-client unpersist $where)"
else
log "$where is not mounted as NFS — nothing to do"
fi
return 0
fi
sudo umount "$where"
log "Unmounted $where"
}
# Persisted Type=nfs/nfs4 unit declaring Where=<path>? Sets PERSISTED_UNIT.
persisted_nfs_at() { # <path> — rc 0 persisted · rc 1 not persisted
local uf
PERSISTED_UNIT=""
for uf in "${UNIT_DIR}"/*.mount; do
[ -f "$uf" ] || continue
grep -q '^Type=nfs' "$uf" || continue
if [ "$(sed -n 's/^Where=//p' "$uf")" = "$1" ]; then
PERSISTED_UNIT="$(basename "$uf")"
return 0
fi
done
return 1
}
cmd_list() {
local out
if out="$(findmnt -t nfs,nfs4 2>/dev/null)" && [ "$(grep -c . <<<"$out")" -gt 1 ]; then
@@ -175,8 +199,17 @@ cmd_unpersist() {
unit_file="${UNIT_DIR}/${unit}"
if [ ! -f "$unit_file" ]; then
warn "No systemd mount unit for $where (${unit})"
exit 0
# Idempotent no-op — rc 0 whether or not anything is configured.
# Return, not exit: a bogus typed path reached from the menu must
# not kill the whole session. Mirror of cmd_unmount's guidance for
# a persisted unit under a non-escape-derived filename.
if persisted_nfs_at "$where"; then
warn "$where has a persistent NFS mount unit (${PERSISTED_UNIT}) under a non-standard unit name."
log "Check it: systemctl status ${PERSISTED_UNIT%.mount} — or find it in the list: pos share nfs-client list"
else
warn "No systemd mount unit for $where (${unit})"
fi
return 0
fi
sudo systemctl disable "$unit" 2>/dev/null || true
@@ -188,6 +221,105 @@ cmd_unpersist() {
}
# ── Interactive menu flows ─────────────────────────────────────
# Mountpoint picker — local port of the share_pick primitive with exactly
# two deltas: the hint line offers `n=new`, and typing n runs the
# create-new-dir flow below. share_pick cannot intercept `n` (it filters on
# it) and lib/menu-lib.sh is shared, so the fork lives here. Rendering of
# numbered picks / text filter / 0=back is byte-identical to menu_pick.
# stdout: chosen item text (or the freshly created dir) · rc 1 = back/cancel.
pick_mountpoint() {
local prompt="$1"; shift
local -a items=("$@")
if [ "${#items[@]}" -eq 0 ]; then
return 1
fi
if ! [ -t 0 ]; then
printf '[!] Interactive picker needs a terminal.\n' >&2
return 1
fi
local filter="" ans i n total=${#items[@]} made
local -a shown=()
while true; do
shown=()
for ((i = 0; i < total; i++)); do
if [ -z "$filter" ] || [[ "${items[$i],,}" == *"${filter,,}"* ]]; then
shown+=("${items[$i]}")
fi
done
n=${#shown[@]}
{
echo
if [ -n "$filter" ]; then
printf -- "-- %d of %d match '%s' --\n" "$n" "$total" "$filter"
else
printf -- "-- %d available --\n" "$total"
fi
if [ "$n" -eq 0 ]; then
printf '[!] no matches — enter nothing or / to clear the filter\n' >&2
else
for ((i = 0; i < n; i++)); do
printf ' %2d) %s\n' $((i + 1)) "${shown[$i]}"
done
fi
} >&2
if ! read -rp "${prompt} [1-${n}], n=new, text=filter, 0=back " ans; then
return 1 # EOF — cancel
fi
case "$ans" in
"") [ -z "$filter" ] || filter="" ; continue ;;
"/") filter="" ; continue ;;
0 | q | Q | b | B) return 1 ;;
n | N)
made="$(ask_new_mountpoint)" && { echo "$made"; return 0; }
continue # declined/invalid/mkdir-failed → redraw
;;
*[!0-9]*)
filter="$ans"
continue
;;
*)
if (( ans >= 1 && ans <= n )); then
echo "${shown[$((ans - 1))]}"
return 0
fi
echo "Unknown choice." >&2
;;
esac
done
}
# Create-new-dir flow behind the picker's `n` key. Validates the shape
# (absolute, no trailing slash), confirm-gates the creation, then mkdir -p.
# Any decline, invalid input, EOF or mkdir failure is a warning + rc 1 —
# the picker redraws, the tool never aborts.
ask_new_mountpoint() { # stdout: created dir · rc 1 = cancelled/failed
# NOTE: runs inside $( ) from the picker — every display line MUST go to
# stderr (menu-lib contract: display → stderr, result → stdout).
local dir
dir="$(share_ask_value "New mountpoint (absolute path)")" || return 1
case "$dir" in
/*) ;;
*) warn "'$dir' is not an absolute path — must start with /" >&2; return 1 ;;
esac
case "$dir" in
*/) warn "'$dir' must not end with a slash" >&2; return 1 ;;
esac
case "$dir" in
/etc|/boot|/bin|/sbin|/lib|/lib64|/usr|/var|/root|/home/*/.ssh*)
warn "Refusing system path as mountpoint" >&2
return 1
;;
esac
confirm "Create mountpoint ${dir}?" n || return 1
if ! run sudo mkdir -p "$dir"; then
warn "Could not create ${dir}" >&2
return 1
fi
log "Created mount point $dir" >&2
echo "$dir"
}
menu_pick_export() { # <host> — stdout: server:export · rc 1 cancelled
local host="$1" idx exp
local -a exports=()
@@ -207,13 +339,26 @@ menu_pick_export() { # <host> — stdout: server:export · rc 1 cancelled
esac
}
menu_ask_mountpoint() { # stdout: absolute path · rc 1 cancelled
local idx dir cand
local -a cands=()
if mapfile -t cands < <(share_folder_candidates) && [ "${#cands[@]}" -gt 0 ]; then
if idx="$(share_pick "Mountpoint" "${cands[@]}")"; then
cand="${cands[$((idx - 1))]}"
dir="${cand%% (*}" # strip "(mounted fstype)" annotation
menu_ask_mountpoint() { # [server_path] — stdout: absolute path · rc 1 cancelled
local srv="${1:-}" idx res cand dir known=0
local -a cands=() dirs=()
mapfile -t cands < <(share_folder_candidates)
for cand in "${cands[@]}"; do
dirs+=("${cand%% (*}") # bare path (strip "(mounted fstype)" note)
done
# Same-as-server suggestion: unless the server-side path already exists
# among the local candidates, append it as a synthetic pick so mounting
# at a mirrored path is a normal selection.
if [ -n "$srv" ] && [ "${#dirs[@]}" -gt 0 ] &&
printf '%s\n' "${dirs[@]}" | grep -qxF -- "$srv"; then
known=1
fi
if [ -n "$srv" ] && [ "$known" -eq 0 ]; then
cands+=("${srv} (as on server)")
fi
if [ "${#cands[@]}" -gt 0 ]; then
if res="$(pick_mountpoint "Mountpoint" "${cands[@]}")"; then
dir="${res%% (*}" # strip "(as on server)"/mount note
case "$dir" in
/etc|/boot|/bin|/sbin|/lib|/lib64|/usr|/var|/root|/home/*/.ssh*)
warn "Refusing system path as mountpoint"
@@ -242,7 +387,7 @@ menu_mount() {
fi
what="$(menu_pick_export "$host")" || return 1
where="$(menu_ask_mountpoint)" || return 1
where="$(menu_ask_mountpoint "${what#*:}")" || return 1 # ${what#*:} = server-side export path
if [ "$mode" = "persist" ]; then
cmd_persist "$what" "$where"
@@ -252,16 +397,30 @@ menu_mount() {
}
menu_unmount() {
local idx where
local -a targets=()
if mapfile -t targets < <(findmnt -r -n -o TARGET -t nfs,nfs4 2>/dev/null | tail -n +2) &&
[ "${#targets[@]}" -gt 0 ]; then
idx="$(share_pick "Unmount which NFS mount?" "${targets[@]}")" || return 1
where="${targets[$((idx - 1))]}"
else
local idx row src where i
local -a tgts=() srcs=() items=()
# Same enumeration source as the `list` view (findmnt -t nfs,nfs4),
# reduced to TARGET|SOURCE rows.
while IFS= read -r row; do
[ -n "$row" ] || continue
tgts+=("${row%%|*}")
srcs+=("${row#*|}")
done < <(findmnt -rn -o TARGET,SOURCE -t nfs,nfs4 2>/dev/null |
awk '{ src=$NF; $NF=""; sub(/[ \t]+$/, ""); print $0 "|" src }')
if [ "${#tgts[@]}" -eq 0 ]; then
log "No active NFS mounts"
where="$(share_ask_value "Local mountpoint to unmount")" || return 1
[ -n "$where" ] || return 1
cmd_unmount "$where"
return 0
fi
for ((i = 0; i < ${#tgts[@]}; i++)); do
items+=("${tgts[$i]} ← ${srcs[$i]}")
done
idx="$(share_pick "Unmount which NFS mount?" "${items[@]}")" || return 1
where="${tgts[$((idx - 1))]}"
src="${srcs[$((idx - 1))]}"
confirm "Unmount ${where} (from ${src})?" n || { log "Cancelled"; return 1; }
cmd_unmount "$where"
}
@@ -296,11 +455,13 @@ run_menu() {
"Unmount a mounted share" \
"Remove a persistent mount")" || return 0
case "$choice" in
1) menu_mount ephemeral ;;
2) menu_mount persist ;;
3) cmd_list ;;
4) menu_unmount ;;
5) menu_unpersist ;;
# Handlers return nonzero on cancel/back — normalized here so a
# cancel can never reach set -e and kill the whole session.
1) menu_mount ephemeral || true ;;
2) menu_mount persist || true ;;
3) cmd_list || true ;;
4) menu_unmount || true ;;
5) menu_unpersist || true ;;
esac
done
}
bin/pos-share-smb-client
+217 -29
View File
@@ -10,6 +10,7 @@ source "$(dirname "$0")/../lib/share-lib.sh" 2>/dev/null || source "$(dirname "$
SMB_CREDS_DIR="${SMB_CREDS_DIR:-/etc/samba/credentials}"
UNIT_DIR="${UNIT_DIR:-/etc/systemd/system}"
SMB_PORT="${SMB_PORT:-445}"
SMB_CONF="${SMB_CONF:-/etc/samba/smb.conf}"
command -v mount.cifs &>/dev/null || err "mount.cifs not found (install cifs-utils)"
command -v systemd-escape &>/dev/null || err "systemd-escape not found"
@@ -21,7 +22,8 @@ Mount and manage SMB/CIFS shares from remote servers (cifs-utils).
Commands:
mount <//server/share> <local-dir> [user] One-shot mount (creates local-dir if needed)
unmount <local-dir> Unmount the share (idempotent)
unmount <local-dir> Unmount the share (idempotent: rc 0 when
nothing is mounted)
list Show active + persistent SMB mounts
persist <//server/share> <local-dir> [user] Persistent mount via systemd .mount + .automount
units (mounts on first access — never blocks boot)
@@ -103,6 +105,23 @@ mounted_src() {
findmnt -rnf -t cifs -o SOURCE,TARGET 2>/dev/null | awk -v t="$1" '$2 == t {print $1; exit}'
}
# Persisted Type=cifs unit declaring Where=<path>? An idle automount never
# appears in findmnt, so this is the only way to tell "idle automount" apart
# from "nothing configured". Sets PERSISTED_UNIT to the unit file basename.
persisted_smb_at() { # <path> — rc 0 persisted · rc 1 not persisted
local uf
PERSISTED_UNIT=""
for uf in "${UNIT_DIR}"/*.mount; do
[ -f "$uf" ] || continue
grep -q '^Type=cifs$' "$uf" || continue
if [ "$(sed -n 's/^Where=//p' "$uf")" = "$1" ]; then
PERSISTED_UNIT="$(basename "$uf")"
return 0
fi
done
return 1
}
# Create the mountpoint if needed; refuse to silently shadow a non-empty dir.
ensure_mountpoint() {
local where="$1"
@@ -243,13 +262,19 @@ cmd_unmount() { # <local-dir>
src="$(mounted_src "$where")"
if [ -z "$src" ]; then
log "Nothing mounted at $where"
exit 0
# Idempotent no-op — rc 0 whether or not anything is configured.
if persisted_smb_at "$where"; then
warn "$where is a persisted automount — not currently mounted."
log "Access it once (e.g.: ls $where) to auto-mount it, or remove the persistence first: menu option 5 (pos share smb-client unpersist $where)"
else
log "Nothing mounted at $where"
fi
return 0
fi
if ! out="$(sudo umount "$where" 2>&1)"; then
if grep -qE "busy|in use" <<<"$out"; then
warn "$where is busy (${src})"
confirm "Force a lazy unmount now?" y && { run sudo umount -l "$where"; log "Lazy-unmounted $where"; exit 0; }
confirm "Force a lazy unmount now?" y && { run sudo umount -l "$where"; log "Lazy-unmounted $where"; return 0; }
err "Still mounted. Find the blocker: sudo lsof +D $where (or fuser -vm $where)"
fi
err "Unmount failed: $out"
@@ -410,8 +435,18 @@ cmd_unpersist() { # <local-dir>
auto_file="${UNIT_DIR}/${auto_unit}"
if [ ! -f "$unit_file" ] && [ ! -f "$auto_file" ]; then
log "No persistent SMB mount for $where — nothing to do"
exit 0
# Idempotent no-op — rc 0 whether or not anything is configured.
# Return, not exit: a bogus typed path reached from the menu must
# not kill the whole session. A persisted unit can also live under
# a non-escape-derived filename (Where= still matches) — point at
# it instead of a bare nothing-to-do.
if persisted_smb_at "$where"; then
warn "$where has a persistent SMB mount unit (${PERSISTED_UNIT}) under a non-standard unit name."
log "Check it: systemctl status ${PERSISTED_UNIT%.mount} — or find it in the list: pos share smb-client list"
else
log "No persistent SMB mount for $where — nothing to do"
fi
return 0
fi
sudo systemctl disable "$auto_unit" 2>/dev/null || true
@@ -432,13 +467,149 @@ cmd_unpersist() { # <local-dir>
}
# ── Interactive menu flows ─────────────────────────────────────
menu_ask_mountpoint() { # stdout: absolute path · rc 1 cancelled
local idx dir cand
local -a cands=()
if mapfile -t cands < <(share_folder_candidates) && [ "${#cands[@]}" -gt 0 ]; then
if idx="$(share_pick "Mountpoint" "${cands[@]}")"; then
cand="${cands[$((idx - 1))]}"
dir="${cand%% (*}" # strip "(mounted fstype)" annotation
# Best-effort resolution of the directory BEHIND share <$2> on host <$1>.
# The underlying path of a remote SMB share is not remotely discoverable;
# it is only locally knowable when THIS machine is the server (testparm
# answers from the local config). Anything else stays unresolved (rc 1)
# and the mountpoint picker silently skips the "(as on server)" suggestion.
smb_server_path() { # <host> <share> — stdout: server-side dir · rc 1 = unresolved
local host="${1,,}" share="$2" name p ips=""
local -a names=("localhost" "127.0.0.1" "::1" "$(hostname)")
names+=("$(hostname -f 2>/dev/null || true)")
ips="$(hostname -I 2>/dev/null)" || true
# shellcheck disable=SC2086 — $ips is an intentional space-split IP list
for name in "${names[@]}" ${ips}; do
if [ "$name" = "$host" ]; then
share_require_bin testparm "" || return 1
[ -f "$SMB_CONF" ] || return 1
p="$(testparm -s --parameter-name=path --section-name="$share" "$SMB_CONF" 2>/dev/null)" || return 1
[ -n "$p" ] || return 1
printf '%s\n' "$p"
return 0
fi
done
return 1
}
# Mountpoint picker — local port of the share_pick primitive with exactly
# two deltas: the hint line offers `n=new`, and typing n runs the
# create-new-dir flow below. share_pick cannot intercept `n` (it filters on
# it) and lib/menu-lib.sh is shared, so the fork lives here. Rendering of
# numbered picks / text filter / 0=back is byte-identical to menu_pick.
# stdout: chosen item text (or the freshly created dir) · rc 1 = back/cancel.
pick_mountpoint() {
local prompt="$1"; shift
local -a items=("$@")
if [ "${#items[@]}" -eq 0 ]; then
return 1
fi
if ! [ -t 0 ]; then
printf '[!] Interactive picker needs a terminal.\n' >&2
return 1
fi
local filter="" ans i n total=${#items[@]} made
local -a shown=()
while true; do
shown=()
for ((i = 0; i < total; i++)); do
if [ -z "$filter" ] || [[ "${items[$i],,}" == *"${filter,,}"* ]]; then
shown+=("${items[$i]}")
fi
done
n=${#shown[@]}
{
echo
if [ -n "$filter" ]; then
printf -- "-- %d of %d match '%s' --\n" "$n" "$total" "$filter"
else
printf -- "-- %d available --\n" "$total"
fi
if [ "$n" -eq 0 ]; then
printf '[!] no matches — enter nothing or / to clear the filter\n' >&2
else
for ((i = 0; i < n; i++)); do
printf ' %2d) %s\n' $((i + 1)) "${shown[$i]}"
done
fi
} >&2
if ! read -rp "${prompt} [1-${n}], n=new, text=filter, 0=back " ans; then
return 1 # EOF — cancel
fi
case "$ans" in
"") [ -z "$filter" ] || filter="" ; continue ;;
"/") filter="" ; continue ;;
0 | q | Q | b | B) return 1 ;;
n | N)
made="$(ask_new_mountpoint)" && { echo "$made"; return 0; }
continue # declined/invalid/mkdir-failed → redraw
;;
*[!0-9]*)
filter="$ans"
continue
;;
*)
if (( ans >= 1 && ans <= n )); then
echo "${shown[$((ans - 1))]}"
return 0
fi
echo "Unknown choice." >&2
;;
esac
done
}
# Create-new-dir flow behind the picker's `n` key. Validates the shape
# (absolute, no trailing slash), confirm-gates the creation, then mkdir -p.
# Any decline, invalid input, EOF or mkdir failure is a warning + rc 1 —
# the picker redraws, the tool never aborts.
ask_new_mountpoint() { # stdout: created dir · rc 1 = cancelled/failed
# NOTE: runs inside $( ) from the picker — every display line MUST go to
# stderr (menu-lib contract: display → stderr, result → stdout).
local dir
dir="$(share_ask_value "New mountpoint (absolute path)")" || return 1
case "$dir" in
/*) ;;
*) warn "'$dir' is not an absolute path — must start with /" >&2; return 1 ;;
esac
case "$dir" in
*/) warn "'$dir' must not end with a slash" >&2; return 1 ;;
esac
case "$dir" in
/etc|/boot|/bin|/sbin|/lib|/lib64|/usr|/var|/root|/home/*/.ssh*)
warn "Refusing system path as mountpoint" >&2
return 1
;;
esac
confirm "Create mountpoint ${dir}?" n || return 1
if ! run sudo mkdir -p "$dir"; then
warn "Could not create ${dir}" >&2
return 1
fi
log "Created mount point $dir" >&2
echo "$dir"
}
menu_ask_mountpoint() { # [server_path] — stdout: absolute path · rc 1 cancelled
local srv="${1:-}" idx res cand dir known=0
local -a cands=() dirs=()
mapfile -t cands < <(share_folder_candidates)
for cand in "${cands[@]}"; do
dirs+=("${cand%% (*}") # bare path (strip "(mounted fstype)" note)
done
# Same-as-server suggestion: unless the server-side path already exists
# among the local candidates, append it as a synthetic pick so mounting
# at a mirrored path is a normal selection.
if [ -n "$srv" ] && [ "${#dirs[@]}" -gt 0 ] &&
printf '%s\n' "${dirs[@]}" | grep -qxF -- "$srv"; then
known=1
fi
if [ -n "$srv" ] && [ "$known" -eq 0 ]; then
cands+=("${srv} (as on server)")
fi
if [ "${#cands[@]}" -gt 0 ]; then
if res="$(pick_mountpoint "Mountpoint" "${cands[@]}")"; then
dir="${res%% (*}" # strip "(as on server)"/mount note
case "$dir" in
/etc|/boot|/bin|/sbin|/lib|/lib64|/usr|/var|/root|/home/*/.ssh*)
warn "Refusing system path as mountpoint"
@@ -479,7 +650,11 @@ menu_mount() { # ephemeral|persist
user="${SMB_AUTH_USER:-$user}"
what="//${host}/${share}"
where="$(menu_ask_mountpoint)" || return 1
# Underlying server-side dir, when knowable (this machine is the server);
# empty → picker silently skips the "(as on server)" suggestion.
local srv_path=""
srv_path="$(smb_server_path "$host" "$share")" || srv_path=""
where="$(menu_ask_mountpoint "$srv_path")" || return 1
if [ "$mode" = "persist" ]; then
cmd_persist "$what" "$where" "$user"
@@ -489,19 +664,30 @@ menu_mount() { # ephemeral|persist
}
menu_unmount() {
local idx row where
local -a targets=()
if mapfile -t rows < <(findmnt -rnf -t cifs -o SOURCE,TARGET 2>/dev/null) &&
[ "${#rows[@]}" -gt 0 ]; then
for row in "${rows[@]}"; do
targets+=("${row##* }") # last field of raw mode = TARGET
done
idx="$(share_pick "Unmount which SMB mount?" "${targets[@]}")" || return 1
where="${targets[$((idx - 1))]}"
else
local idx row src where i
local -a tgts=() srcs=() items=()
# Same enumeration source as the `list` view's active section
# (findmnt -t cifs), reduced to TARGET|SOURCE rows.
while IFS= read -r row; do
[ -n "$row" ] || continue
tgts+=("${row%%|*}")
srcs+=("${row#*|}")
done < <(findmnt -rn -o TARGET,SOURCE -t cifs 2>/dev/null |
awk '{ src=$NF; $NF=""; sub(/[ \t]+$/, ""); print $0 "|" src }')
if [ "${#tgts[@]}" -eq 0 ]; then
log "No active SMB mounts"
where="$(share_ask_value "Local mountpoint to unmount")" || return 1
[ -n "$where" ] || return 1
cmd_unmount "$where"
return 0
fi
for ((i = 0; i < ${#tgts[@]}; i++)); do
items+=("${tgts[$i]} ← ${srcs[$i]}")
done
idx="$(share_pick "Unmount which SMB mount?" "${items[@]}")" || return 1
where="${tgts[$((idx - 1))]}"
src="${srcs[$((idx - 1))]}"
confirm "Unmount ${where} (from ${src})?" n || { log "Cancelled"; return 1; }
cmd_unmount "$where"
}
@@ -535,11 +721,13 @@ run_menu() {
"Unmount a mounted share" \
"Remove a persistent mount")" || return 0
case "$choice" in
1) menu_mount ephemeral ;;
2) menu_mount persist ;;
3) cmd_list ;;
4) menu_unmount ;;
5) menu_unpersist ;;
# Handlers return nonzero on cancel/back — normalized here so a
# cancel can never reach set -e and kill the whole session.
1) menu_mount ephemeral || true ;;
2) menu_mount persist || true ;;
3) cmd_list || true ;;
4) menu_unmount || true ;;
5) menu_unpersist || true ;;
esac
done
}