generate-supported-tags.sh

#!/usr/bin/env bash

BASE_DIR="$(cd "$(dirname "$0")" && pwd)"
COMMIT_ID=$(git rev-parse --verify HEAD)
JSON="$(cat ./versions.json)"
OFFICIAL_VERSIONS_KEYS=()
REPOSITORY='https://github.com/dstmodders/docker-terraria-server'
TSHOCK_VERSIONS_KEYS=()

mapfile -t OFFICIAL_VERSIONS_KEYS < <(jq -r '.official | keys[]' <<< "$JSON")
# shellcheck disable=SC2207
IFS=$'\n' OFFICIAL_VERSIONS_KEYS=($(sort -rV <<< "${OFFICIAL_VERSIONS_KEYS[*]}")); unset IFS

mapfile -t TSHOCK_VERSIONS_KEYS < <(jq -r '.tshock | keys[]' <<< "$JSON")
# shellcheck disable=SC2207
IFS=$'\n' TSHOCK_VERSIONS_KEYS=($(sort -rV <<< "${TSHOCK_VERSIONS_KEYS[*]}")); unset IFS

readonly BASE_DIR
readonly COMMIT_ID
readonly JSON
readonly OFFICIAL_VERSIONS_KEYS
readonly REPOSITORY
readonly TSHOCK_VERSIONS_KEYS

function print_url() {
  local tags="$1"
  local commit="$2"
  local directory="$3"
  local url="[$tags]($REPOSITORY/blob/$commit/$directory/Dockerfile)"
  echo "- $url"
}

cd "$BASE_DIR" || exit 1

printf "## Supported tags and respective \`Dockerfile\` links\n\n"

# reference: 1.4.4.9-official, 1.4.4.9, official, latest
for key in "${OFFICIAL_VERSIONS_KEYS[@]}"; do
  commit="$COMMIT_ID"
  terraria_version=$(jq -r ".official | .[$key] | .terraria_version" <<< "$JSON")
  terraria_latest=$(jq -r ".official | .[$key] | .terraria_latest" <<< "$JSON")

  tags="\`$terraria_version-official\`, \`$terraria_version\`"

  if [ "$terraria_latest" == 'true' ]; then
    tags="$tags, \`official\`, \`latest\`"
  fi

  print_url "$tags" "$commit" 'official'
done

# reference: 1.4.4.9-tshock-5.2.0, 1.4.4.9-tshock, tshock-5.2.0, 5.2.0, tshock
for key in "${TSHOCK_VERSIONS_KEYS[@]}"; do
  commit="$COMMIT_ID"
  terraria_version=$(jq -r ".tshock | .[$key] | .terraria_version" <<< "$JSON")
  terraria_latest=$(jq -r ".tshock | .[$key] | .terraria_latest" <<< "$JSON")
  tshock_version=$(jq -r ".tshock | .[$key] | .tshock_version" <<< "$JSON")
  tshock_latest=$(jq -r ".tshock | .[$key] | .tshock_latest" <<< "$JSON")

  tags="\`$terraria_version-tshock-$tshock_version\`"

  if [ "$tshock_latest" == 'true' ]; then
    tags="$tags, \`$terraria_version-tshock\`"
  fi

  if [ "$terraria_latest" == 'true' ]; then
    tags="$tags, \`tshock-$tshock_version\`, \`$tshock_version\`"
  fi

  if [ "$terraria_latest" == 'true' ] && [ "$tshock_latest" == 'true' ]; then
    tags="$tags, \`tshock\`"
  fi

  print_url "$tags" "$commit" 'tshock'
done