update

run.sh

@@ -1,6 +1,69 @@
 #!/usr/bin/env bash
 # TA-ProxMenu preloader
 
+DEFAULTS_REPOSITORY='/opt/idssys/defaults'
+DEFAULTS_CACHE_DIR='/var/cache/ta-proxmenu'
+DEFAULTS_CHECK_FILE="${DEFAULTS_CACHE_DIR}/defaults-last-check"
+DEFAULTS_CHECK_SECONDS=14400
+
+AUTO_UPDATE_DEFAULTS() {
+	local checked_at=0
+	local local_commit
+	local now
+	local remote_commit
+
+	mkdir -p "$DEFAULTS_CACHE_DIR" 2>/dev/null || true
+	now="$(date +%s)"
+	[[ -r "$DEFAULTS_CHECK_FILE" ]] && read -r checked_at <"$DEFAULTS_CHECK_FILE"
+
+	if [[ "$checked_at" =~ ^[0-9]+$ ]] &&
+		(( now - checked_at < DEFAULTS_CHECK_SECONDS )); then
+		return
+	fi
+
+	exec 9>"${DEFAULTS_CACHE_DIR}/defaults-update.lock" || return
+	flock -n 9 || return
+
+	# Another process may have completed the update while this one waited.
+	checked_at=0
+	[[ -r "$DEFAULTS_CHECK_FILE" ]] && read -r checked_at <"$DEFAULTS_CHECK_FILE"
+	if [[ "$checked_at" =~ ^[0-9]+$ ]] &&
+		(( now - checked_at < DEFAULTS_CHECK_SECONDS )); then
+		return
+	fi
+
+	if [[ ! -d "${DEFAULTS_REPOSITORY}/.git" ]]; then
+		echo "iDSSYS Defaults is missing; restoring it from origin..."
+		mkdir -p /opt/idssys
+		if ! timeout 60 git clone \
+			https://git.scity.us/voltron/iDS-Defaults.git "$DEFAULTS_REPOSITORY"; then
+			echo "WARNING: Unable to restore iDSSYS Defaults." >&2
+			return
+		fi
+	else
+		if ! timeout 20 git -C "$DEFAULTS_REPOSITORY" fetch origin master \
+			>/dev/null 2>&1; then
+			echo "WARNING: Unable to check iDSSYS Defaults; using the installed copy." >&2
+			return
+		fi
+
+		local_commit="$(git -C "$DEFAULTS_REPOSITORY" rev-parse HEAD)"
+		remote_commit="$(git -C "$DEFAULTS_REPOSITORY" rev-parse origin/master)"
+		if [[ "$local_commit" != "$remote_commit" ]]; then
+			echo "Updating required iDSSYS Defaults..."
+			if ! git -C "$DEFAULTS_REPOSITORY" reset --hard origin/master \
+				>/dev/null 2>&1; then
+				echo "WARNING: Unable to update iDSSYS Defaults; using the installed copy." >&2
+				return
+			fi
+		fi
+	fi
+
+	date +%s >"$DEFAULTS_CHECK_FILE"
+}
+
+AUTO_UPDATE_DEFAULTS
+
 [ "${2:-}" != "q" ] && source /opt/idssys/defaults/colors.inc
 source /opt/idssys/defaults/default.inc
 source /opt/idssys/ta-proxmenu/defaults.inc