#!/bin/bash

set -x
set -e

if [ -r /etc/jenkins/debian_glue ] ; then
  . /etc/jenkins/debian_glue
fi

if [ "${BUILD_ONLY:-}" = "true" ] ; then
  echo "BUILD_ONLY is set to true, ignoring request to generate local repository."
  exit 0
fi

if [ "$#" -lt 1 ] ; then
  echo "Usage: $0 <codename>" >&2
  exit 1
fi

# repository/codename that should be added
REPOS="$1"

JENKINS_DEBIAN_GLUE_VERSION=$(dpkg --list jenkins-debian-glue 2>/dev/null | awk '/^ii/ {print $3}')
if [ -n "${JENKINS_DEBIAN_GLUE_VERSION:-}" ] ; then
  echo "*** Running jenkins-debian-glue version $JENKINS_DEBIAN_GLUE_VERSION ***"
fi

if [ -z "${REPOSITORY:-}" ] ; then
  REPOSITORY='/srv/repository'
  echo "*** Repository variable REPOSITORY is unset, using default [$REPOSITORY] ***"
fi

if ! ${SUDO_CMD:-} mkdir -p "${REPOSITORY}"/conf ; then
  echo "Error creating ${REPOSITORY}/conf (forgot to create /srv/repository and chown jenkins?)" >&2
  exit 1
fi

${SUDO_CMD:-} chown $(id -un) "${REPOSITORY}"/conf
touch "${REPOSITORY}"/conf/distributions

if [ -r /etc/jenkins/debian_glue ] ; then
  echo "*** Sourcing /etc/jenkins/debian_glue ***"
  . /etc/jenkins/debian_glue
fi

# support setting key id
if [ -z "${KEY_ID:-}" ] ; then
  echo "*** WARNING: No KEY_ID found, can not sign repository. ***"
  echo "***          Generate a key executing 'gpg --gen-key' as user root"
  echo "***          and then set up /etc/jenkins/debian_glue, see"
  echo "***          /usr/share/jenkins-debian-glue/examples/debian_glue"
fi

if grep -q "^Codename: ${REPOS}$" "${REPOSITORY}"/conf/distributions ; then
  echo "Codename/repository $REPOS exists already, ignoring request to add again."
  exit 0
fi

cat >> "${REPOSITORY}"/conf/distributions << EOF

Codename: ${REPOS}
AlsoAcceptFor: unstable
Architectures: amd64 i386 source
Components: main
DebIndices: Packages Release . .gz
DscIndices: Sources Release .gz
Tracking: minimal
EOF

if [ -n "${KEY_ID:-}" ] ; then
  echo "*** Signing repository with Key ID $KEY_ID ***"
  printf "SignWith: ${KEY_ID}\n\n" >> "${REPOSITORY}"/conf/distributions
fi

echo "Added $REPOS as new codename/repos to the reprepro configuration."

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