#!/usr/bin/env bash
set -x
set -e
# I want to rip this install-binaries script out so badly
cd engine
TMP_GOPATH="/go" bash hack/dockerfile/install-binaries.sh runc-dynamic containerd-dynamic proxy-dynamic tini
if [[ $? -ne 0 ]]; then
    echo "Binaries required for package building not installed correctly."
    echo "Exiting..."
    exit 1
fi
cd -
echo VERSION AAA $VERSION

VERSION=${VERSION:-$( cat engine/VERSION )}

echo VERSION bbb $VERSION
export TZ=UTC

tilde='~' # ouch Bash 4.2 vs 4.3, you keel me
# git running in different directories, backwards compatible too
GIT_COMMAND="git --git-dir=/root/build-deb/engine/.git --work-tree=/root/build-deb/engine/"
debVersion="${VERSION//-/$tilde}" # using \~ or '~' here works in 4.3, but not 4.2; just ~ causes $HOME to be inserted, hence the $tilde
# if we have a "-dev" suffix or have change in Git, let's make this package version more complex so it works better
if [[ "$VERSION" == *-dev ]]; then
    # TODO: Re-introduce git commit time into version number
    todaysDate="$(date +'%Y%m%d.%H%M%S')"
    # We're guaranteed to have DOCKER_GITCOMMIT in the env
    gitVersion="git${todaysDate}.0.${DOCKER_GITCOMMIT}"
    # gitVersion is now something like 'git20150128.112847.0.17e840a'
    debVersion="$debVersion~$gitVersion"

    # $ dpkg --compare-versions 1.5.0 gt 1.5.0~rc1 && echo true || echo false
    # true
    # $ dpkg --compare-versions 1.5.0~rc1 gt 1.5.0~git20150128.112847.17e840a && echo true || echo false
    # true
    # $ dpkg --compare-versions 1.5.0~git20150128.112847.17e840a gt 1.5.0~dev~git20150128.112847.17e840a && echo true || echo false
    # true

    # ie, 1.5.0 > 1.5.0~rc1 > 1.5.0~git20150128.112847.17e840a > 1.5.0~dev~git20150128.112847.17e840a
fi
debSource="$(awk -F ': ' '$1 == "Source" { print $2; exit }' debian/control)"
debMaintainer="$(awk -F ': ' '$1 == "Maintainer" { print $2; exit }' debian/control)"
debDate="$(date --rfc-2822)"

cat > "debian/changelog" <<-EOF
$debSource (${debVersion}-0~${DISTRO}) $SUITE; urgency=low
  * Version: $VERSION
 -- $debMaintainer  $debDate
EOF
# The space above at the start of the line for the debMaintainer is very important

# Give the script a git commit because it wants it
export DOCKER_GITCOMMIT=${DOCKER_GITCOMMIT-$($GIT_COMMAND rev-parse --short HEAD)}

echo VERSION BBB $VERSION
dpkg-buildpackage -uc -us -I.git
destination="/build"
mkdir -p "$destination"
mv -v /root/docker-ce* "$destination"