From dcb27d24070d5153d992a074d23357581d2f4308 Mon Sep 17 00:00:00 2001
From: cdpb <anders.halman+github@gmail.com>
Date: Tue, 11 Oct 2022 15:32:03 +0200
Subject: [PATCH] add SET_CONFIG_UPDATE for autorun settings

---
 README.md  |  2 ++
 install.sh | 12 ++++++++++--
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index a806984..a008179 100644
--- a/README.md
+++ b/README.md
@@ -62,6 +62,8 @@ _zram_algorithm="lzo-rle"
 Remember that the ZRAM device size references uncompressed data, real memory
 utilization should be ~2-3x smaller than the zram device size due to compression.
 
+If you run `install.sh` in a automatic script, like ansible, use `SET_CONFIG_UPDATE=[(I)nstall, (K)eep] ./install.sh` to skip the interactive-prompt.
+
 #### A quick note RE: compression algorithms:
 
 The default configuration using lz4 should work well for most people. lzo may
diff --git a/install.sh b/install.sh
index 3ba12ad..133ab8a 100755
--- a/install.sh
+++ b/install.sh
@@ -65,8 +65,15 @@ _install() {
       echo "Install package default configuration? Local config will be saved as /etc/default/zram-swap.oldconfig"
       while true; do
         echo "(I)nstall package default / (K)eep local configuration / View (D)iff"
-        printf "[i/k/d]: "
-        read yn
+        set +u
+        if [ -n "$SET_CONFIG_UPDATE" ]; then
+          yn=$SET_CONFIG_UPDATE
+          unset SET_CONFIG_UPDATE
+        else
+          printf "[i/k/d]: "
+          read yn
+        fi
+        set -u
         case "$yn" in
           [Ii]*)
             echo "Installing package default ..."
@@ -76,6 +83,7 @@ _install() {
             ;;
           [Kk]*) break ;;
           [Dd]*) printf "%s\n\n" "$configdiff" ;;
+	  *) ;;
         esac
       done
     fi