bin/impl/util.sh

#! /usr/bin/env bash

# Copyright 2014 Uno authors (see AUTHORS)
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

function verify_exist_hash() {
  tarball=$1
  expected_hash=$(echo "${2// /}" | tr '[:upper:]' '[:lower:]')

  if [[ ! -f "$DOWNLOADS/$tarball" ]]; then
    print_to_console "The tarball $tarball does not exist in downloads/"
    exit 1
  fi

  local HASH_CMD
  case "${#expected_hash}" in
    32) HASH_CMD='md5sum' ;;
    40) HASH_CMD='shasum -a 1' ;;
    64) HASH_CMD='shasum -a 256' ;;
    128) HASH_CMD='shasum -a 512' ;;
    *)
      print_to_console "Expected checksum ($expected_hash) of $tarball is not an MD5, SHA1, SHA256, or SHA512 sum"
      exit 1
      ;;
  esac
  actual_hash=$($HASH_CMD "$DOWNLOADS/$tarball" | awk '{print $1}')

  if [[ "$actual_hash" != "$expected_hash" ]]; then
    print_to_console "The actual checksum ($actual_hash) of $tarball does not match the expected checksum ($expected_hash)"
    exit 1
  fi
}

# Takes directory variables as arguments
function check_dirs() {
  for arg in "$@"; do
    if [[ ! -d "${!arg}" ]]; then
      print_to_console "$arg=${!arg} is not a valid directory. Please make sure it exists"
      exit 1
    fi
  done
}

function run_setup_script() {
  local SCRIP; SCRIP=$(echo "$1" | tr '[:upper:] ' '[:lower:]-')
  local L_DIR; L_DIR="$LOGS_DIR/setup"
  mkdir -p "$L_DIR"
  shift
  "$UNO_HOME/bin/impl/setup-$SCRIP.sh" "$@" 1>"$L_DIR/$SCRIP.stdout" 2>"$L_DIR/$SCRIP.stderr"
}

function save_console_fd {
  if [[ -z "$UNO_CONSOLE_FD" && "$OSTYPE" != "darwin"* ]]; then
    # Allocate an unused file descriptor and make it dup stdout
    # https://stackoverflow.com/a/41620630/7298689
    exec {UNO_CONSOLE_FD}>&1
    export UNO_CONSOLE_FD
  fi
}

function print_to_console {
  if [[ -z "$UNO_CONSOLE_FD" ]]; then
    echo "$@"
  else
    echo "$@" >&${UNO_CONSOLE_FD}
  fi
}