From 140dae9d52b7012001c5598d0627bca0ec23ee70 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@open-infrastructure.net>
Date: Fri, 10 Dec 2021 01:16:57 +0100
Subject: Adding interactive option to container update command to ease
 skipping containers.

Signed-off-by: Daniel Baumann <daniel.baumann@open-infrastructure.net>
---
 libexec/container/update         | 54 +++++++++++++++++++++++++++++++++++++---
 share/man/container-update.1.rst |  3 +++
 2 files changed, 54 insertions(+), 3 deletions(-)

diff --git a/libexec/container/update b/libexec/container/update
index adfee65..077160c 100755
--- a/libexec/container/update
+++ b/libexec/container/update
@@ -28,8 +28,8 @@ HOOKS="/etc/${SOFTWARE}/hooks"
 
 Parameters ()
 {
-	GETOPT_LONGOPTIONS="name:,full-upgrade,autoremove,purge,yes,"
-	GETOPT_OPTIONS="n:,f,r,p,y,"
+	GETOPT_LONGOPTIONS="name:,full-upgrade,interactive,autoremove,purge,yes,"
+	GETOPT_OPTIONS="n:,f,i,r,p,y,"
 
 	PARAMETERS="$(getopt --longoptions ${GETOPT_LONGOPTIONS} --name=${COMMAND} --options ${GETOPT_OPTIONS} --shell sh -- ${@})"
 
@@ -54,6 +54,11 @@ Parameters ()
 				shift 1
 				;;
 
+			-i|--interactive)
+				INTERACTIVE="true"
+				shift 1
+				;;
+
 			-r|--autoremove)
 				AUTOREMOVE="true"
 				shift 1
@@ -84,7 +89,7 @@ Parameters ()
 
 Usage ()
 {
-	echo "Usage: ${PROGRAM} ${COMMAND} -n|--name NAME [-f|--full-upgrade] [-r|--autoremove] [-p|--purge] [-y|--yes]" >&2
+	echo "Usage: ${PROGRAM} ${COMMAND} -n|--name NAME [-f|--full-upgrade] [-i|--interactive] [-r|--autoremove] [-p|--purge] [-y|--yes]" >&2
 	echo
 	echo "See ${COMMAND}(1), ${PROGRAM}(1) and ${PROJECT}(7) for more information."
 
@@ -152,9 +157,52 @@ do
 	fi
 done
 
+if [ $(echo ${NAMES} | wc -w) -gt 1 ]
+then
+	NAME_LOOP="true"
+else
+	NAME_LOOP="false"
+fi
+
 # Run
 for NAME in ${NAMES}
 do
+	case "${INTERACTIVE}" in
+		true)
+			case "${NAME_LOOP}" in
+				true)
+					echo
+					;;
+			esac
+
+			echo -n "'${NAME}': update container '${NAME}' [y|N|a]? "
+			read UPDATE
+
+			UPDATE="$(echo ${UPDATE} | tr '[A-Z]' '[a-z]')"
+
+			case "${UPDATE}" in
+				a|all)
+					INTERACTIVE="false"
+					;;
+
+				y|yes)
+					;;
+
+				*)
+					case "${NAME_LOOP}" in
+						true)
+							continue
+							;;
+
+						*)
+							exit 1
+							;;
+					esac
+					;;
+			esac
+			;;
+	esac
+
 	echo "################################################################################"
 	echo "Updating ${NAME}"
 	echo "################################################################################"
diff --git a/share/man/container-update.1.rst b/share/man/container-update.1.rst
index 7b17ae2..58dcb73 100644
--- a/share/man/container-update.1.rst
+++ b/share/man/container-update.1.rst
@@ -50,6 +50,9 @@ The following **container update** options are available:
 -f, --full-upgrade:
   Runs an additional 'apt full-upgrade' after 'apt upgrade'.
 
+-i, --interactive:
+  Prompt before every container update.
+
 -r, --autoremove:
   Runs an additional 'apt autoremove' after 'apt upgrade'.
 
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