dokku/plugins/ssh-keys/subcommands/add

#!/usr/bin/env bash
set -eo pipefail
[[ $DOKKU_TRACE ]] && set -x
source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
source "$PLUGIN_AVAILABLE_PATH/ssh-keys/functions"

cmd-ssh-keys-add() {
  declare desc="add a new key via sshcommand"
  declare cmd="ssh-keys:add"
  [[ "$1" == "$cmd" ]] && shift 1
  declare NAME="$1" KEY_FILE="$2"
  local TMP_KEY_FILE

  TMP_KEY_FILE=$(mktemp "/tmp/dokku-${DOKKU_PID}-${FUNCNAME[0]}.XXXXXX")
  trap "rm -rf '$TMP_KEY_FILE' >/dev/null" RETURN INT TERM EXIT

  if [[ -n "$KEY_FILE" ]]; then
    true
  elif [[ -p /dev/stdin ]]; then
    local key_contents
    read -r key_contents
    echo "$key_contents" >"$TMP_KEY_FILE"
    KEY_FILE="$TMP_KEY_FILE"
  else
    dokku_log_fail "No key specified via file or pipe"
  fi

  if [[ ! -s "$KEY_FILE" ]]; then
    dokku_log_fail "Empty key was specified"
  fi

  local count="$(wc -l "$KEY_FILE" | awk '{ print $1; }')"
  # Don't check for "-eq 1" as no newlines is also a valid SSH key
  [[ "$count" -lt 2 ]] || dokku_log_fail "Too many keys provided, set one per invocation of dokku ssh-keys:add <NAME> <KEY_FILE>"
  ssh-keygen -lf "$KEY_FILE" &>/dev/null || dokku_log_fail "Key specified in is not a valid ssh public key"
  create_ssh_key_file
  verify_ssh_key_exists
  sshcommand acl-add dokku "$NAME" "$KEY_FILE" || dokku_log_fail "sshcommand returned an error: $?"
  verify_ssh_key_file
}

cmd-ssh-keys-add "$@"