From 0c67eaefb5911598d9f17b57caf91f764ead914a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Benjamin=20B=C3=A4dorf?= <hello@benjaminbaedorf.eu>
Date: Wed, 8 Feb 2023 01:54:05 +0100
Subject: [PATCH] Improve scan2paperless script

---
 pkgs/scan2paperless.nix | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/pkgs/scan2paperless.nix b/pkgs/scan2paperless.nix
index 5e527ddb..c56733ef 100644
--- a/pkgs/scan2paperless.nix
+++ b/pkgs/scan2paperless.nix
@@ -2,16 +2,28 @@ self:
 with self; ''
   export PATH=${lib.makeBinPath [pkgs.coreutils pkgs.sane-frontends pkgs.sane-backends pkgs.ghostscript pkgs.imagemagick]}
 
-  while true;
-  do
-    read -p "Press Enter to continue or Ctrl+C to stop" < /dev/tty
+  NAME=$([ "$1" == "" ] && date -Iseconds || echo "$1")
 
+  TMPDIR=$(mktemp -d)
+
+  echo "Using ''${NAME}.pdf as filename"
+  RESPONSE=""
+
+  while [ -z "$RESPONSE" ];
+  do
     DATETIME=$(date -Iseconds)
+    echo "Starting scan $DATETIME"
     scanimage \
       -d "''${SCANNER_DEFAULT_DEVICE}" \
       --format=jpeg \
       --resolution 300 \
       --progress \
-      -o "''${SCANNER_OUTPUT_DIR}/''${DATETIME}.jpg"
+      -o "''${TMPDIR}/''${DATETIME}.jpg"
+
+    read -p "Press ENTER to scan another page, or any other key to generate the final PDF: " RESPONSE < /dev/tty
   done
+
+  ${python39Packages.img2pdf}/bin/img2pdf --output "''${SCANNER_OUTPUT_DIR}/''${NAME}.pdf" ''${TMPDIR}/*
+
+  rm -rf TMPDIR
 ''