Refactor the multi-host salt install page.

[arvados.git] / build / rails-package-scripts / step2.sh

diff --git a/build/rails-package-scripts/step2.sh b/build/rails-package-scripts/step2.sh
index 816b906392ef44e0067a1f7ff6d325736077773c..41c9cd71e366ff5d14973638ad48547bcc98ba3a 100644 (file)
--- a/build/rails-package-scripts/step2.sh
+++ b/build/rails-package-scripts/step2.sh
@@ -1,4 +1,8 @@
 #!/bin/sh
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: AGPL-3.0
+
 # This code runs after package variable definitions, before the actual
 # pre/post package work, to set some variable and function defaults.
 
@@ -7,7 +11,7 @@ if [ -z "$INSTALL_PATH" ]; then
 
 PACKAGE BUILD ERROR: $0 is missing package metadata.
 
-This package is buggy.  Please mail <support@curoverse.com> to let
+This package is buggy.  Please mail <packaging@arvados.org> to let
 us know the name and version number of the package you tried to
 install, and we'll get it fixed.
 
@@ -19,10 +23,59 @@ RELEASE_PATH=$INSTALL_PATH/current
 RELEASE_CONFIG_PATH=$RELEASE_PATH/config
 SHARED_PATH=$INSTALL_PATH/shared
 
-RAILSPKG_SUPPORTS_CONFIG_CHECK=${RAILSPKG_SUPPORTS_CONFIG_CHECK:-1}
 if ! type setup_extra_conffiles >/dev/null 2>&1; then
     setup_extra_conffiles() { return; }
 fi
 if ! type setup_before_nginx_restart >/dev/null 2>&1; then
     setup_before_nginx_restart() { return; }
 fi
+
+if [ -e /run/systemd/system ]; then
+    USING_SYSTEMD=1
+else
+    USING_SYSTEMD=0
+fi
+
+if which service >/dev/null 2>&1; then
+    USING_SERVICE=1
+else
+    USING_SERVICE=0
+fi
+
+guess_service_manager() {
+    if [ 1 = "$USING_SYSTEMD" ]; then
+        echo systemd
+    elif [ 1 = "$USING_SERVICE" ]; then
+        echo service
+    else
+        return 1
+    fi
+}
+
+list_services_systemd() {
+    test 1 = "$USING_SYSTEMD" || return
+    # Print only service names, without the `.service` suffix.
+    systemctl list-unit-files '*.service' \
+        | awk '($1 ~ /\.service/){print substr($1, 1, length($1) - 8)}'
+}
+
+list_services_service() {
+    test 1 = "$USING_SERVICE" || return
+    # Output is completely different across Debian and Red Hat.
+    # We can't really parse it.
+    service --status-all 2>/dev/null
+}
+
+service_command() {
+    local service_manager="$1"; shift
+    local command="$1"; shift
+    local service="$1"; shift
+    case "$service_manager" in
+        systemd) systemctl "$command" "$service" ;;
+        service) service "$service" "$command" ;;
+    esac
+}
+
+if ! guess_service_manager >/dev/null; then
+    echo "WARNING: Unsupported init system. Can't manage web service." >&2
+fi