install

#!/bin/bash
type curl &>/dev/null
if [ $? -ne 0 ]; then
  echo "Curl must be installed" || exit $?
fi

type zbash_commons &>/dev/null
if [ $? -ne 0 ]; then
  echo "[DOWNLOAD] Downloading zbash_commons from latest release.."
  ZBASH_COMMONS_GET_SCRIPT="$(curl -Ls "https://raw.githubusercontent.com/LamaAni/zbash-commons/master/get?ts_$(date +%s)=$RANDOM")"
  ZBASH_COMMONS="$(bash -c "$ZBASH_COMMONS_GET_SCRIPT")"
  eval "$ZBASH_COMMONS"
else
  source zbash_commons
fi

HELP="
Installs git_autosync

USAGE: Install [release]
INOPUT:
  release         The release to install (default: latest)
"

while [ "$#" -gt 0 ]; do
  case $1 in
  -h | --help)
    log:help "$HELP"
    exit 0
    ;;
  -*)
    assert 2 "Invalid argument: $1"
    ;;
  *)
    if [ -z "$GIT_AUTOSYNC_VERSION" ]; then
      GIT_AUTOSYNC_VERSION="$1"
    else
      assert 2 "Unknown input: $1"
    fi
    ;;
  esac
  shift
done

: "${GIT_AUTOSYNC_VERSION:="latest"}"
: "${GIT_AUTOSYNC_SOURCE_COMMAND_LOCATION:="/usr/bin/git_autosync"}"

# ------------------
REPO_RAW_URL="https://raw.githubusercontent.com/LamaAni/git_autosync"
GIT_AUTOSYNC_TEMP_PATH="$(mktemp)-git-autosync-script.sh"

function install() {
  URL_BRANCH="$GIT_AUTOSYNC_VERSION"
  if [ "$URL_BRANCH" == "latest" ]; then
    URL_BRANCH="master"
  fi
  GET_SCRIPT_URL="$REPO_RAW_URL/$URL_BRANCH/get?v_$(date +"%S")=$RANDOM"
  curl -sL "$GET_SCRIPT_URL" | bash -s "$GIT_AUTOSYNC_VERSION" >"$GIT_AUTOSYNC_TEMP_PATH"
  assert $? "Failed to download GIT_AUTOSYNC compiled script from $GET_SCRIPT_URL" || return $?

  log:sep "Installing git_autosync as $(whoami)"
  log "Checking required premissions"
  if [ "$(whoami)" != "root" ]; then
    log "checking if sudo is available..."
    type sudo >/dev/null 2>&1
    if [ $? -ne 0 ]; then
      warn 2 "Sudo not found. Attempting to install with user $(whoami)"
    else
      assert 2 "Sudo found, please rerun as root" || return $?
    fi
  fi

  if [ -f "$GIT_AUTOSYNC_SOURCE_COMMAND_LOCATION" ]; then
    rm -rf "$GIT_AUTOSYNC_SOURCE_COMMAND_LOCATION"
    assert $? "Failed to remove old code" || return $?
  fi

  log "Downloading.."

  cat "$GIT_AUTOSYNC_TEMP_PATH" >"$GIT_AUTOSYNC_SOURCE_COMMAND_LOCATION" && chmod +x "$GIT_AUTOSYNC_SOURCE_COMMAND_LOCATION"
  log "Installed OK -> $GIT_AUTOSYNC_SOURCE_COMMAND_LOCATION ($(wc -l $GIT_AUTOSYNC_SOURCE_COMMAND_LOCATION) lines)"
}

function cleanup() {
  local code=$?
  assert "$code" || return $code
}

install
cleanup $? "Failed to install" || exit $?