#!/bin/sh

set -u
set -e

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

# Tarball to read, compressed with gzip
INPUT="${1:?"Usage: $0 filename"}"

# Regular expression used to validate tag lines
CHECKRE='^[a-z0-9A-Z.+-]+[[:space:]]+Tag[[: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 \"$TARGET\"tag.new.XXXXXX`"
OUTCONTRIB="`mktemp \"$TARGET\"tag.contrib.new.XXXXXX`"
OUTNONFREE="`mktemp \"$TARGET\"tag.non-free.new.XXXXXX`"

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

# Extract the data into the temporary files
tar -O -zxf "$INPUT" "$DIR"tag | grep -E "$CHECKRE" > "$OUTMAIN"
tar -O -zxf "$INPUT" "$DIR"tag.contrib | grep -E "$CHECKRE" > "$OUTCONTRIB"
tar -O -zxf "$INPUT" "$DIR"tag.non-free | grep -E "$CHECKRE" > "$OUTNONFREE"

# Move the data to the final location
mv "$OUTMAIN"           "$TARGET"tag
mv "$OUTCONTRIB"        "$TARGET"tag.contrib
mv "$OUTNONFREE"        "$TARGET"tag.non-free

chmod 644 "$TARGET"tag "$TARGET"tag.contrib "$TARGET"tag.non-free

(cd $TARGET && $scriptsdir/mk-extra-overrides.sh)
(cd "$TARGET" \
  && dak external-overrides import unstable main Tag <tag \
  && dak external-overrides import unstable contrib Tag <tag.contrib \
  && dak external-overrides import unstable non-free Tag <tag.non-free)
dak external-overrides copy unstable testing

trap - EXIT

exit 0