install

#!/bin/bash

# current dir
dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

# showing help
if [[ "$1" == "-h" || "$1" == "--help" ]]; then
  echo "$(basename "$0") [-h] -- Runs the installation:
    -h/--help       show this help text
    --production    installs as production release (under UPIPE_ROOT). Otherwise, if not supplied installs under UPIPE_DEV_ROOT (default)
    --update-alpha  update alpha release symlink to point to the version provided by info.json
    --update-beta   update beta release symlink to point to the version provided by info.json
    --update-stable update stable release symlink to point to the version provided by info.json
    --update-all    update all release symlinks (alpha, beta and stable) to point to the version provided by info.json"
  exit 0
fi

updateReleaseSymlinks() {
  installRoot="$1"
  declare info=($(cat "$dir/info.json" | jq -r ".name, .version, .type"))
  local name=${info[0]}
  local version=${info[1]}
  local type=${info[2]}

  for releaseType in stable beta alpha; do
    # removing current soft-link
    local targetReleaseLocation="$installRoot/$type/$name/$releaseType"
    if [[ $* == *--update-$releaseType* || $* == *--update-all* ]]; then
      if [[ -L "$targetReleaseLocation" ]]; then
        rm $targetReleaseLocation
      fi
    fi

    # creating soft-link
    if ! [[ -L "$targetReleaseLocation" ]]; then
      echo "- Updating $releaseType release to point to $version ($targetReleaseLocation -> $(dirname $targetReleaseLocation)/$version)"
      ln -s $version $targetReleaseLocation
    fi
  done

  unset info
}

# making sure jq is installed
if ! [ -x "$(command -v jq)" ]; then
  echo 'ERROR "jq" IS NOT INSTALLED (https://stedolan.github.io/jq/download/).' >&2
  exit
fi

# production release
if [[ $* == *--production* ]]; then
  # removing any previous build folder
  if [ -d "build_release" ]; then
    rm -r "build_release"
  fi

  # making sure UPIPE_ROOT is defined
  if [ -z $UPIPE_ROOT ]; then
    echo "UPIPE_ROOT is not defined"
    exit 1
  fi

  # showing a prompt confirmation, in case of a mistake
  read -r -p "Are you sure you want to run the production release? [y/N] " response
  if [[ "$response" =~ ^(yes|y)$ ]]; then

    # running installation
    qbs build_release project.releaseType:production qbs.installRoot:$UPIPE_ROOT

    # updating release
    updateReleaseSymlinks $UPIPE_ROOT $@
  fi

# development release
else
  # making sure UPIPE_DEV_ROOT is defined
  if [ -z $UPIPE_DEV_ROOT ]; then
    echo "UPIPE_DEV_ROOT is not defined"
    exit 1
  fi

  # TODO: workaround to avoid the installation not detecting
  # modifications in files and installing a wrong version from the cache
  # (rather than invalidating the cache).
  # This issue has been noticed in qbs 1.8.1
  if [ -d "default" ]; then
    rm -r "default"
  fi

  # running installation
  qbs project.releaseType:dev qbs.installRoot:$UPIPE_DEV_ROOT

  # updating release
  updateReleaseSymlinks $UPIPE_DEV_ROOT $@
fi