tools/devshell/contrib/ffx

#!/bin/bash
# Copyright 2020 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

#### CATEGORY=Other
### execute ffx - future fx
## See fx ffx help for more information.

source "$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"/../lib/vars.sh || exit $?
fx-config-read

if is-remote-workflow-device; then
  "${FUCHSIA_BUILD_DIR}/host-tools/ffx" target add $(get-device-pair)
fi

# NOTE: this could be improved if it knew enough about ffx args to
# short-circuit once it hits a command, but not all global flags take arguments
# (e.g. -v, --help), so it would be hard to keep those in sync. For now we
# accept the concession that something other than the global --target flag
# being spelled exactly --target as an argument is highly unlikely.
found_target=false
args=()
while [[ $# -gt 0 ]]; do
  arg="$1"
  args+=("$1")
  shift

  # Handle global flags explicitly, separating those which have parameters from
  # those that do not, searching for --target. As soon as a non-known argument
  # is discovered, pass all other flags as-is.
  # This case should be kept in sync with the ffx global flags.
  case "$arg" in
    # target special case.
    -t|--target)
      found_target=true
      args+=("$1")
      shift
      ;;

    # ffx global flags that have parameters.
    -c|--config|-e|--env|-T|--timeout)
      args+=("$1")
      shift
      ;;

    # ffx global flags that do not accept parameters.
    -v|--verbose|-h|--help)
      :
      ;;

    # Any other flag results in all flags being passed forward as-is and the
    # loop is terminated.
    *)
      args+=("$@")
      break
      ;;
  esac
done

if ! ${found_target}; then
  # Note: the quotes around get-device-pair are critical, if no fx default
  # device is set, we explicitly want to pass "" here.
  args=(--target "$(get-device-pair)" "${args[@]}")
fi

if [[ "${args[*]}" =~ "target default" ]]; then
  fx-warn "Inside the Fuchsia tree, ffx has a target specified by fx"
  fx-warn "Using default targets via ffx target default may have undefined behavior"
  fx-warn "See https://fxbug.dev/74963 for more information."
  fx-warn "Prefer:"
  fx-warn "   fx set-device"
  fx-warn "   fx get-device"
  fx-warn "   fx unset-device"
fi

config="{ \"sdk\": { \"root\": \"${FUCHSIA_BUILD_DIR}\", \"type\": \"in-tree\" } }"

exec "${FUCHSIA_BUILD_DIR}/host-tools/ffx" "--config" "${config}" "${args[@]}"