From 14346e56b0abbae050dbb171ac6844d5d203b734 Mon Sep 17 00:00:00 2001
From: Robert Schubert <robert.schubert@mathint.com>
Date: Fri, 15 Mar 2019 00:03:16 +0100
Subject: [PATCH] tesstrain: catch+handle SIGINT (to stop waiting on subjobs)

---
 src/training/tesstrain_utils.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/training/tesstrain_utils.sh b/src/training/tesstrain_utils.sh
index c536220b21..df660ad0e9 100644
--- a/src/training/tesstrain_utils.sh
+++ b/src/training/tesstrain_utils.sh
@@ -314,6 +314,7 @@ phase_I_generate_image() {
         fi
 
         local jobs=
+        trap "kill $$" INT
         for font in "${FONTS[@]}"; do
             sleep 1
             test $(jobs -r | wc -l) -ge $par_factor && wait -n
@@ -444,6 +445,7 @@ phase_E_extract_features() {
     export TESSDATA_PREFIX=${TESSDATA_DIR}
     tlog "Using TESSDATA_PREFIX=${TESSDATA_PREFIX}"
     local jobs=
+    trap "kill $$" INT
     for img_file in ${img_files}; do
         test $(jobs -r | wc -l) -ge $par_factor && wait -n
         run_command tesseract ${img_file} ${img_file%.*} \