#!/bin/bash

set -u
set -e
set -o pipefail

if [ $# -lt 5 ]; then
        echo "Usage: $0 filename version arch changes_file suite"
        exit 1
fi

export SCRIPTVARS=/srv/ftp-master.debian.org/dak/config/debian/vars
. $SCRIPTVARS

INPUT="$1"      # Tarball to read, compressed with gzip
VERSION="$2"
ARCH="$3"
CHANGES="$4"    # Changes file for the upload
SUITE="$5"

error() {
        echo "$*"
        exit 1
}

case $SUITE in
    unstable|sid)
        : # OK for automated byband processing
        ;;
    *)
        error "Reject: task overrides can only be processed automatically for uploads to unstable"
        ;;
esac


# Regular expression used to validate tag lines
CHECKRE='^[a-z0-9A-Z.+-]+[[:space:]]+Task[[:space:]]+[a-z0-9:. ,{}+-]+$'

# This must end with /
TARGET=/srv/ftp-master.debian.org/scripts/external-overrides/

# Read the main directory from the tarball
DIR="`tar ztf \"$INPUT\" | tac | tail -n 1`"

# Create temporary files where to store the validated data
umask 002
OUTMAIN="`mktemp \"$TARGET\"task.new.XXXXXX`"

# If we fail somewhere, cleanup the temporary files
cleanup() {
        rm -f "$OUTMAIN"
}
trap cleanup EXIT

# Extract the data into the temporary files
tar -O -zxf "$INPUT" "$DIR"task | grep -E "$CHECKRE" > "$OUTMAIN"

# Move the data to the final location
mv "$OUTMAIN"           "$TARGET"task

chmod 644 "$TARGET"task

dak external-overrides import unstable main Task <"$TARGET"task
dak external-overrides copy unstable testing

trap - EXIT

exit 0