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[utils.git] / autodlctl

#!/bin/bash

paths=(/home/pub/video/anime $HOME/dc/autodl/cur)

function getnext
{
    echo "checking $tag"
    sexpr="`cat "$d/.autodl/sexpr"`"
    unset badsizes
    if [ -r "$d/.autodl/badlist" ]; then
	read curep <"$d/.autodl/badlist"
	echo "downloading bad files, curep $curep"
	epfrom=badlist
    elif [ -r "$d/.autodl/curep" ]; then
	curep="`cat "$d/.autodl/curep"`"
	echo "downloading series, curep $curep"
	epfrom=curep
    else
	echo "no available episode of $tag" >&2
	echo "$tag" >>"$HOME/dc/autodl/faulty"
	return 1
    fi
    unset badsizesl
    if [ -r "$d/.autodl/badsizes" ]; then
	badsizesl="$(sed -n "s/^0*$curep \(.*\)$/\1/p" "$d/.autodl/badsizes")"
    fi
    if [ -n "$badsizesl" ]; then
	read -a badsizes <<<"$badsizesl"
	unset badsizesl
	echo "found bad size list: ${badsizes[@]}"
    fi
    unset args
    fsexpr="`printf "$sexpr" "$curep"`"
    if [ "${#badsizes[@]}" -gt 0 ]; then
	for badsize in "${badsizes[@]}"; do
	    fsexpr="$fsexpr & ! S=$badsize"
	done
    fi
    infofile="$d/.autodl/rtinfo"
    args=(-e "$fsexpr" -t "$tag $curep" -I "$infofile")
    if [ -r "$d/.autodl/uarg" ]; then
	uarg="`cat "$d/.autodl/uarg"`"
    elif [ -e "$d/.autodl/autouarg" ]; then
	uarg="rename:$tag - %02i.avi:move:../autodl/cur/$tag"
    fi
    if [ -n "$uarg" ]; then
	fuarg="`printf "$uarg" "$curep"`"
	args=("${args[@]}" -a "$fuarg")
    fi
    outfile="$d/.autodl/output"
    echo "trying to download -- autodl ${args[@]}"
    intr=n
    autodl "${args[@]}" >"$outfile" 2>&1 &
    pid=$!
    trap "intr=y; kill -INT $pid" USR1 INT
    wait $pid
    stat=$?
    if [ "$intr" = y ]; then
	echo "$tag interrupted"
    else
	if [ "$stat" -ne 0 ]; then
	    if [ "$stat" -eq 1 ]; then
		echo "Failure for $tag" >>"$HOME/dc/autodl/errorlog"
		tail -n 20 "$outfile" >>"$HOME/dc/autodl/errorlog"
	    elif [ "$stat" -eq 2 ]; then
		echo "Connection error on $tag"
	    elif [ "$stat" -eq 3 ]; then
		echo "Configuration error, disabling $tag"
		cp "$outfile" "$d/.autodl/conferr"
		touch "$d/.autodl/disabled"
	    fi
	else
	    echo "episode $curep of $tag done"
	    case "$epfrom" in
		badlist)
		    echo -en "${tag}\n${curep}\n" >>"$HOME/dc/autodl/baddone"
		    egrep -v "^$curep( |\$)" "$d/.autodl/badlist" >"$d/.autodl/newbadlist"
		    mv -f "$d/.autodl/newbadlist" "$d/.autodl/badlist"
		    if [ `wc -l <"$d/.autodl/badlist"` -eq 0 ]; then
			rm "$d/.autodl/badlist"
			if [ -r "$d/.autodl/curep" ]; then
			    if [ -r "$d/.autodl/maxep" ] && [ "`cat "$d/.autodl/curep"`" -gt "`cat "$d/.autodl/maxep"`" ]; then
				touch "$d/.autodl/disabled"
			    fi
			else
			    touch "$d/.autodl/disabled"
			fi
			echo "$tag has no more bad episodes"
			echo "$tag" >>"$HOME/dc/autodl/badmaxed"
		    fi
		    ;;
		curep)
		    echo -en "${tag}\n${curep}\n" >>"$HOME/dc/autodl/done"
		    let curep++
		    echo "$curep" >"$d/.autodl/curep"
		    if [ -r "$d/.autodl/maxep" ]; then
			if [ "$curep" -gt "`cat "$d/.autodl/maxep"`" ]; then
			    touch "$d/.autodl/disabled"
			    echo "$tag has reached max"
			    echo "$tag" >>"$HOME/dc/autodl/maxed"
			fi
		    fi
		    ;;
	    esac
	fi
    fi
    rm -f "$outfile"
    rm -f "$HOME/dc/autodl/run/$tag"
}

for dir in $HOME/dc/autodl{,/cur,/run}; do
    if [ -e "$dir" ]; then
	if [ ! -d "$dir" ]; then
	    echo "$dir is not a directory, please remedy and restart" >&2
	    exit 1
	fi
    else
	mkdir "$dir" || exit 1
    fi
done

while [ $# -gt 0 ]; do
    arg="$1"
    shift
    case "$arg" in
	-k)
	    pid="$(cat "$HOME/dc/autodl/run/master")"
	    if [ -z "$pid" ]; then
		echo "autodlctl: could not read a PID from $HOME/dc/autodl/run/master" >&2
		exit 1
	    fi
	    kill "$pid"
	    exit 0
	    ;;
	*)
	    echo "autodlctl: unrecognized option: \"$arg\"" >&2
	    exit 1
	    ;;
    esac
done

lastget=0
done=n
trap "done=y" INT QUIT TERM
echo $$ >"$HOME/dc/autodl/run/master"
while [ "$done" != y ]; do
    for pidfile in $HOME/dc/autodl/run/*; do
	if [ "$pidfile" = "$HOME/dc/autodl/run/*" ]; then break; fi
	pid="`cat "$pidfile"`"
	if [ -d /proc/1 -a ! -d "/proc/$pid" ]; then
	    echo "removing stale pidfile $pidfile"
	    rm -f "$pidfile"
	fi
    done
    for p in "${paths[@]}"; do
	for d in "$p"/*; do
	    if [ -d "$d/.autodl" -a ! -e "$d/.autodl/disabled" ]; then
		if [ -r "$d/.autodl/tag" ]; then
		    tag="`cat "$d/.autodl/tag"`"
		else
		    tag="`basename "$d"`"
		fi
		if [ -e "$d/.autodl/disable" ]; then
		    echo "disabling $tag per user request"
		    touch "$d/.autodl/disabled"
		    rm -f "$d/.autodl/disable"
		    if [ -r "$HOME/dc/autodl/run/$tag" ]; then
			pid="`cat "$HOME/dc/autodl/run/$tag"`"
			echo "sending SIGUSR1 to $pid"
			kill -USR1 "$pid"
		    else
			echo "could not find pid for $tag"
		    fi
		elif [ ! -r "$d/.autodl/sexpr" ]; then
		    touch "$d/.autodl/disabled"
		    echo "$tag lacks sexpr" >&2
		    echo "$tag" >>"$HOME/dc/autodl/faulty"
		else
		    if [ ! -e "$HOME/dc/autodl/run/$tag" ]; then
			if [ $((`date +%s` - $lastget)) -gt 20 ]; then
			    getnext "$d" "$tag" &
			    lastget=`date +%s`
			    pid=$!
			    echo "$pid" >"$HOME/dc/autodl/run/$tag"
			fi
		    fi
		fi
	    fi
	done
    done
    sleep 10
done

for pidfile in $HOME/dc/autodl/run/*; do
    if [ "$pidfile" = "$HOME/dc/autodl/run/*" ]; then break; fi
    if [ "$(basename "$pidfile")" = master ]; then continue; fi
    pid="`cat "$pidfile"`"
    echo "sending SIGUSR1 to $pid for `basename "$pidfile"`"
    kill -USR1 "$pid"
done

rm -f "$HOME/dc/autodl/run/master"