From 4f7c58dc1d957d6d6d44c897619b5130c4ac026e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Robin=20Ob=C5=AFrka?= <r.oburka@gmail.com>
Date: Mon, 25 Jul 2016 00:06:34 +0200
Subject: Add support for custom stages of pipeline

---
 backuper.sh | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/backuper.sh b/backuper.sh
index 67eb92b..84bf943 100644
--- a/backuper.sh
+++ b/backuper.sh
@@ -37,6 +37,7 @@ PID_STORE=""
 PID_FILE="pids"
 STAGE="0"
 PIPELINE_FILE_TYPE="bz2.gpg"
+CUSTOM_STAGE_FILE="custom_stage"
 
 ## Internal variables - program logic
 CONFIG_FILE_NAME=".backuper.sh.conf"
@@ -156,6 +157,10 @@ store_file() {
 	store "sh -c 'cat > ${DST}/${FILENAME}'"
 }
 
+add_custom_stage() {
+	echo "$@" >> "$RUNDIR"/"$CUSTOM_STAGE_FILE"
+}
+
 ## Internal functions
 test_input() {
 	[ -z "$NAME" ] && error "Specify backup name"
@@ -266,6 +271,14 @@ start_pipeline() {
 	## PID that I'm not able to get (event from list of children).
 	## ... and it takes 100% CPU. So, for now: Do not use mbuffer as the last one.
 	#add_stage "mbuffer -q -m "$MBUFFER_SIZE""
+	if [ -f "$RUNDIR"/"$CUSTOM_STAGE_FILE" ]; then
+		while read LINE; do
+			add_stage "$LINE"
+		done <<EOT
+		$(cat "$RUNDIR"/"$CUSTOM_STAGE_FILE")
+EOT
+		## While loop is executed in subshell - this hack keeps variables
+	fi
 
 	start_store || die "Store command failed" &
 	PID_STORE=$!
-- 
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