From b812602d486df9bea39dfad23910a2449350d09c Mon Sep 17 00:00:00 2001
From: Pedro Pombeiro <noreply@pedro.pombei.ro>
Date: Sun, 22 Sep 2024 19:22:13 +0200
Subject: [PATCH] Exit script if scan cancelled

---
 script/scanRear.sh           |  6 ++++--
 script/scantofile-0.2.4-1.sh |  4 +++-
 script/trigger_telegram.sh   | 23 +++++++++++------------
 3 files changed, 18 insertions(+), 15 deletions(-)

diff --git a/script/scanRear.sh b/script/scanRear.sh
index 85eb9bf..9f7317c 100755
--- a/script/scanRear.sh
+++ b/script/scanRear.sh
@@ -12,15 +12,17 @@ if [ "$USE_JPEG_COMPRESSION" = "true" ]; then
   gm_opts+=(-compress JPEG -quality 80)
 fi
 
+set -e # Exit on error
+
 # device=$1
 mkdir -p /tmp
-cd /tmp || exit
+cd /tmp
 date=$(ls -rd */ | grep "$(date +"%Y-%m-%d")" | head -1)
 date=${date%/}
 filename_base="/tmp/$date/${date}-back-page"
 output_file="${filename_base}%04d.pnm"
 
-cd "/tmp/${date}" || exit
+cd "/tmp/${date}"
 
 pkill -P "$(cat scan_pid)"
 rm scan_pid
diff --git a/script/scantofile-0.2.4-1.sh b/script/scantofile-0.2.4-1.sh
index 6ed0f11..1e4893f 100755
--- a/script/scantofile-0.2.4-1.sh
+++ b/script/scantofile-0.2.4-1.sh
@@ -16,8 +16,10 @@
   # device=$1
   date=$(date +%Y-%m-%d-%H-%M-%S)
 
+  set -e # Exit on error
+
   mkdir -p "/tmp/$date"
-  cd "/tmp/$date" || exit
+  cd "/tmp/$date"
   filename_base="/tmp/${date}/${date}-front-page"
   output_file="${filename_base}%04d.pnm"
   echo "filename: $output_file"
diff --git a/script/trigger_telegram.sh b/script/trigger_telegram.sh
index 6280167..f96f6e6 100755
--- a/script/trigger_telegram.sh
+++ b/script/trigger_telegram.sh
@@ -3,18 +3,17 @@
 # Check if TELEGRAM_TOKEN and TELEGRAM_CHATID are both set
 if [ -z "${TELEGRAM_TOKEN}" ] || [ -z "${TELEGRAM_CHATID}" ]; then
   echo "TELEGRAM_TOKEN or TELEGRAM_CHATID is not set"
-  exit 1
-fi
-
-# Use the environment variables TELEGRAM_TOKEN and TELEGRAM_CHATID
-TOKEN="$TELEGRAM_TOKEN"
-CHAT_ID="$TELEGRAM_CHATID"
+else
+  # Use the environment variables TELEGRAM_TOKEN and TELEGRAM_CHATID
+  TOKEN="$TELEGRAM_TOKEN"
+  CHAT_ID="$TELEGRAM_CHATID"
 
-# The message is passed as a parameter
-MESSAGE="Scanner: $1"
+  # The message is passed as a parameter
+  MESSAGE="Scanner: $1"
 
-# URL encode the message to handle spaces and special characters
-ENCODED_MESSAGE=$(echo "$MESSAGE" | jq -sRr @uri)
+  # URL encode the message to handle spaces and special characters
+  ENCODED_MESSAGE=$(echo "$MESSAGE" | jq -sRr @uri)
 
-# Send the message using wget
-wget -qO- --post-data="chat_id=$CHAT_ID&text=$ENCODED_MESSAGE" "https://api.telegram.org/$TOKEN/sendMessage" > /dev/null
+  # Send the message using wget
+  wget -qO- --post-data="chat_id=$CHAT_ID&text=$ENCODED_MESSAGE" "https://api.telegram.org/$TOKEN/sendMessage" >/dev/null
+fi