toys/checkmissing: check for missing files in destinations

Incase files were removed by some other process, or, $DEITY forbids, a bug

toys/checkmissing

@@ -0,0 +1,88 @@
+#!/usr/bin/env bash
+
+# config structures
+declare -A			\
+	destinationchannels	\
+	destinationfat32compat	\
+	destinationcopymime	\
+	destinationformat	\
+	destinationfrequency	\
+	destinationid		\
+	destinationloss		\
+	destinationmaxbps	\
+	destinationnormalize	\
+	destinationpath		\
+	destinationquality	\
+	destinationrename	\
+	destinationnoresample	\
+	destinationrenamepath	\
+	destinationskipmime	\
+|| {
+	echo "Check your Bash version. You need >= 4.0" >&2
+	exit $EBASHVERS
+}
+
+declare -r				\
+	DOCDIR=./doc			\
+	LIBDIR=./lib			\
+	SHAREDIR=./share
+declare -r				\
+	exampleconf=$DOCDIR/example.cfg	\
+	schema=$SHAREDIR/schema.sql	\
+					\
+	oldIFS="$IFS"
+
+cffile="$HOME/.atom/atom.cfg"
+LC_ALL=C
+
+shopt -s extglob
+
+for function in "$LIBDIR"/*/*
+do
+	source "$function"
+done
+
+while getopts 'Dr' opt
+do
+	case $opt in
+		D)	(( debug++ ))	;;
+		r)	regen=1		;;
+	esac
+done
+
+getConfig
+
+openDatabase
+
+echo 'SELECT id,filename FROM destination_files WHERE filename IS NOT NULL;' >&3
+echo 'SELECT "AtOM:NoMoreFiles";' >&3
+
+read -u4 filename
+until [[ $filename == AtOM:NoMoreFiles ]]
+do
+	files+=("$filename")
+	read -u4 filename
+done
+
+echo 'BEGIN TRANSACTION;' >&3
+
+echo -n "Checking for missing files...  "
+for filename in "${files[@]}"
+do
+	id=${filename%%::AtOM:SQL:Sep::*}
+	filename=${filename#*::AtOM:SQL:Sep::}
+	if ! [ -f "$filename" ]
+	then
+		echo -e "\r$filename\033[K"
+		((regen))&&Update destination_files last_change 0 <<<"id = $id"
+		echo -n "Checking for missing files...  "
+		(( missing++ ))
+	fi
+	progressSpin
+done
+
+echo 'COMMIT;' >&3
+
+echo -e "\r${missing:-0} missing files\033[K"
+
+closeDatabase