internal-functions

#!/usr/bin/env bash
set -eo pipefail
[[ $DOKKU_TRACE ]] && set -x
export DOCKER_BIN=${DOCKER_BIN:="docker"}
source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"

fn-clean-extended-app-images() {
  declare APP="$1" IMAGE="$2"
  local images

  # remove dangling extended app images
  "$DOCKER_BIN" rmi $("$DOCKER_BIN" images --format 'dangling=true' --format "label=com.dokku.app-name=sha-$APP" --quiet) &>/dev/null || true

  images="$("$DOCKER_BIN" images --filter "label=com.dokku.app-name=sha-$APP" --quiet)"
  for image in $images; do
    if [[ "$("$DOCKER_BIN" inspect --format '{{(index .RepoTags 0)}}' "$image" 2>/dev/null)" != "$IMAGE" ]]; then
      "$DOCKER_BIN" rmi "$image" &>/dev/null || true
    fi
  done
}

fn-apt-fetch-sha() {
  declare SOURCECODE_WORK_DIR="$1" DOKKU_IMAGE="$2"
  local APT_FILES CONTENT INJECT_PACKAGES file

  if [[ -d "$SOURCECODE_WORK_DIR/dpkg-packages" ]]; then
    return
  fi

  APT_FILES=('apt-conf' 'apt-env' 'apt-keys' 'apt-preferences' 'apt-sources-list' 'apt-repositories' 'apt-debconf' 'apt-packages')
  for file in "${APT_FILES[@]}"; do
    if [[ -f "$SOURCECODE_WORK_DIR/$file" ]]; then
      INJECT_PACKAGES=true
      local file_contents=$(<$SOURCECODE_WORK_DIR/$file)
      CONTENT="${CONTENT}\n${file}\n${file_contents}"
    fi
  done

  if [[ "$INJECT_PACKAGES" != "true" ]]; then
    return
  fi

  echo -n "$(<$PLUGIN_AVAILABLE_PATH/apt/plugin.toml)${DOKKU_IMAGE}${CONTENT}" | sha256sum | cut -d " " -f 1
}

fn-apt-populate-work-dir() {
  declare SOURCECODE_WORK_DIR="$1" TMP_WORK_DIR="$2"
  local APT_FILES file

  APT_FILES=('apt-conf' 'apt-env' 'apt-keys' 'apt-preferences' 'apt-sources-list' 'apt-repositories' 'apt-debconf' 'apt-packages')
  for file in "${APT_FILES[@]}"; do
    if [[ -f "$SOURCECODE_WORK_DIR/$file" ]]; then
      cp "$SOURCECODE_WORK_DIR/$file" "$TMP_WORK_DIR/$file"
    fi
  done
}

fn-apt-command() {
  declare APP="$1" DOKKU_IMAGE="$2" DIR="$3"
  cat <<EOF
# $APP $DOKKU_IMAGE
sleep 2
export DEBIAN_FRONTEND=noninteractive
if [ -f $DIR/apt-conf ]; then
    echo "-----> Copying apt-conf file into place"
    mv -v $DIR/apt-conf /etc/apt/apt.conf.d/99dokku-apt
fi

if [ -f $DIR/apt-env ]; then
    echo "-----> Sourcing apt env"
    source $DIR/apt-env
fi
if [ -f $DIR/apt-keys ]; then
    echo "-----> Installing custom apt repository keys"
    cat "$DIR/apt-keys" | while read key; do
        if [ -n "\$key" ]; then
            curl -sS "\$key" > /tmp/repository.key
            echo "       Installing \$key (sha256sum: \$(sha256sum /tmp/repository.key | cut -d' ' -f1))"
            cat /tmp/repository.key | apt-key add - >/dev/null
        fi
    done
fi
if [ -d $DIR/apt-preferences ]; then
    echo "-----> Injecting apt preferences"
    mv -v $DIR/apt-preferences /etc/apt/preferences.d/90customizations
fi
if [ -f $DIR/apt-sources-list ]; then
    echo "-----> Using customized sources.list"
    mv -v /etc/apt/sources.list /etc/apt/sources.list.orig
    mv -v $DIR/apt-sources-list /etc/apt/sources.list
fi
if [ -f $DIR/apt-repositories ]; then
    echo "-----> Updating package list"
    apt-get update >/dev/null
    echo "-----> Installing required apt transport packages"
    apt-get install -y software-properties-common apt-transport-https
    echo "-----> Installing custom apt repositories"
    cat "$DIR/apt-repositories" | while read repository; do
        if [ -n "\$repository" ]; then
            add-apt-repository -y "\$repository"
        fi
    done
fi
if [ -f $DIR/apt-debconf ]; then
    cat "$DIR/apt-debconf" | while read conf; do
        if [ -n "\$conf" ]; then
            echo \$conf | debconf-set-selections
        fi
    done
fi
if [ -f $DIR/apt-packages ]; then
    PACKAGES=\$(cat "$DIR/apt-packages" | tr "\\n" " ")
    echo "-----> Updating package list"
    apt-get update >/dev/null
    echo "-----> Injecting packages: \$PACKAGES"
    apt-get install -y \$PACKAGES
fi
if [ -d $DIR/dpkg-packages ]; then
    PACKAGES=\$(find $DIR/dpkg-packages -type f -name '*.deb' | tr "\\n" " ")
    echo "-----> Injecting packages: \$PACKAGES"
    dpkg -i \$PACKAGES
fi

if [ -f /etc/apt/sources.list.orig ]; then
    echo "-----> Restoring original sources.list"
    mv -v /etc/apt/sources.list.orig /etc/apt/sources.list
fi

rm -rf /tmp/apt
sleep 1 # wait so that docker run has not exited before docker attach
EOF
}