#!/usr/bin/env bash

REQUIRED_CONFIGS+=("APP")
REQUIRED_CONFIGS+=("BUILD_HOST")
REQUIRED_CONFIGS+=("BUILD_USER")
REQUIRED_CONFIGS+=("BUILD_AT")
OPTIONAL_CONFIGS+=("REBAR_CONFIG")

set_build_hosts

help() {
  echo -e "
${bldwht}Usage:${txtrst}
  edeliver build release [Options]

${txtbld}Options:${txtrst}
  --branch=<git-branch> The branch to build. ${txtylw}Default is the master branch${txtrst}.
             ${txtgrn}The branch doesn't need to be pushed to remote${txtrst} before building.
             The revision passed as ${bldwht}--revision=${txtrst} argument must be in that branch.
  --tag=<git-tag> The tag to build.
  --revision=<git-revision> The revision to build. ${txtylw}Must be in the branch${txtrst}
             passed as ${bldwht}--branch=${txtrst} argument or in the master (default).
  --mix-env=<env> Build the release with a custom mix environment.
             Default is ${bldwht}prod${txtrst}.
  --auto-version=[git-]revision|[git-]commit-count[-all[-branches]|-branch]
             |[git-]branch[-unless-master]|[build-]date|mix-env ${txtgrn}Appends${txtrst} the git
             sha1 revision, the current commit count either across all branches
             (default) or for the current branch, the current branch name
             (optionally only unless it is the master branch) and/or the
             build date as ${txtgrn}metadata to the current upgrade version${txtrst}. To append
             that metadata ${txtgrn}automatically for each build${txtrst} set the ${bldwht}AUTO_VERSION${txtrst}
             env in the config. Values can also be combined using the ${bldwht}+${txtrst} char,
             e.g. ${bldwht}git-revison+git-branch${txtrst} creates version 1.2.3-82a5834-master.
  --increment-version=major|minor|patch  Increments the major, minor or patch
             version ${txtylw}for the current build${txtrst}.
  --set-version=<release-version> Sets the release version for ${txtylw}the current build${txtrst}.

${txtbld}Faster Builds:${txtrst} ${txtblu}(Faster builds might fail during build or during runtime)${txtrst}
  --skip-git-clean Don't build from a clean state for faster builds. Can be
             adjusted by the ${bldwht}GIT_CLEAN_PATHS${txtrst} environment variable. Should be
             at least ${bldwht}rel${txtrst} for elixir releases.
  --skip-mix-clean Skip the 'mix clean step' for faster builds. Can be used
             in addition to ${bldwht}--skip-git-clean${txtrst} Option for incremental builds.

${bldylw}Info:${txtrst}
  Builds a release on the build host and copies it to the release store.
  It can be used by the edeliver ${bldwht}deploy release${txtrst} command to deploy it on
  staging or production hosts.
  ${txtgrn}The built release can be used after a restart${txtrst} of the node.
  "
}

run() {
  authorize_hosts
  init_app_remotely
  git_push
  git_reset_remote
  git_clean_remote
  authorize_release_store_on_build_host
  erlang_get_and_update_deps
  erlang_clean_compile
  erlang_generate_release
  erlang_archive_release
  copy_release_to_release_store "release"
}