bootstrap.sh - pigweed/pigweed - Git at Google

 # Copyright 2020 The Pigweed 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
 #
 #     https://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.

 # This script must be tested on bash, zsh, and dash.

 _pw_abspath () {
   python -c "import os.path; print(os.path.abspath('$@'))"
 }


 # Note: Colors are unfortunately duplicated in several places; and removing the
 # duplication is not easy. Their locations are:
 #
 #   - bootstrap.sh
 #   - pw_cli/color.py
 #   - pw_env_setup/py/pw_env_setup/colors.py
 #
 # So please keep them matching then modifying them.
 _pw_none() {
   echo -e "$*"
 }

 _pw_red() {
   echo -e "\033[0;31m$*\033[0m"
 }

 _pw_bold_red() {
   echo -e "\033[1;31m$*\033[0m"
 }

 _pw_yellow() {
   echo -e "\033[0;33m$*\033[0m"
 }

 _pw_bold_yellow() {
   echo -e "\033[1;33m$*\033[0m"
 }

 _pw_green() {
   echo -e "\033[0;32m$*\033[0m"
 }

 _pw_bold_green() {
   echo -e "\033[1;32m$*\033[0m"
 }

 _pw_blue() {
   echo -e "\033[1;34m$*\033[0m"
 }

 _pw_cyan() {
   echo -e "\033[1;36m$*\033[0m"
 }

 _pw_magenta() {
   echo -e "\033[0;35m$*\033[0m"
 }

 _pw_bold_white() {
   echo -e "\033[1;37m$*\033[0m"
 }

 # Note: This banner is duplicated in three places; which is a lesser evil than
 # the contortions that would be needed to share this snippet acros shell,
 # batch, and Python. Locations:
 #
 #   - bootstrap.sh
 #   - pw_cli/branding.py
 #   - pw_env_setup/py/pw_env_setup/windows_env_start.py
 #
 _PW_BANNER=$(cat <<EOF
  ▒█████▄   █▓  ▄███▒  ▒█    ▒█ ░▓████▒ ░▓████▒ ▒▓████▄
   ▒█░  █░ ░█▒ ██▒ ▀█▒ ▒█░ █ ▒█  ▒█   ▀  ▒█   ▀  ▒█  ▀█▌
   ▒█▄▄▄█░ ░█▒ █▓░ ▄▄░ ▒█░ █ ▒█  ▒███    ▒███    ░█   █▌
   ▒█▀     ░█░ ▓█   █▓ ░█░ █ ▒█  ▒█   ▄  ▒█   ▄  ░█  ▄█▌
   ▒█      ░█░ ░▓███▀   ▒█▓▀▓█░ ░▓████▒ ░▓████▒ ▒▓████▀
 EOF
 )

 # Support customizing the branding with a different banner and color.
 if test -f "$PW_BRANDING_BANNER"; then
   _PW_BANNER=$(cat $PW_BRANDING_BANNER)
 fi
 if test -z "$PW_BRANDING_BANNER_COLOR"; then
   PW_BRANDING_BANNER_COLOR=magenta
 fi

 # Users are not expected to set PW_CHECKOUT_ROOT, it's only used because it
 # seems to be impossible to reliably determine the path to a sourced file in
 # dash when sourced from a dash script instead of a dash interactive prompt.
 # To reinforce that users should not be using PW_CHECKOUT_ROOT, it is cleared
 # here after it is used, and other pw tools will complain if they see that
 # variable set.
 # TODO(mohrr) find out a way to do this without PW_CHECKOUT_ROOT.
 if test -n "$PW_CHECKOUT_ROOT"; then
   PW_SETUP_SCRIPT_PATH="$(_pw_abspath "$PW_CHECKOUT_ROOT/bootstrap.sh")"
   unset PW_CHECKOUT_ROOT
 # Shell: bash.
 elif test -n "$BASH"; then
   PW_SETUP_SCRIPT_PATH="$(_pw_abspath "$BASH_SOURCE")"
 # Shell: zsh.
 elif test -n "$ZSH_NAME"; then
   PW_SETUP_SCRIPT_PATH="$(_pw_abspath "${(%):-%N}")"
 # Shell: dash.
 elif test ${0##*/} = dash; then
   PW_SETUP_SCRIPT_PATH="$(_pw_abspath \
     "$(lsof -p $$ -Fn0 | tail -1 | sed 's#^[^/]*##;')")"
 # If everything else fails, try $0. It could work.
 else
   PW_SETUP_SCRIPT_PATH="$(_pw_abspath "$0")"
 fi

 # Check if this file is being executed or sourced.
 _pw_sourced=0
 if [ -n "$SWARMING_BOT_ID" ]; then
   # If set we're running on swarming and don't need this check.
   _pw_sourced=1
 elif [ -n "$ZSH_EVAL_CONTEXT" ]; then
   case $ZSH_EVAL_CONTEXT in *:file) _pw_sourced=1;; esac
 elif [ -n "$KSH_VERSION" ]; then
   [ "$(cd $(dirname -- $0) && pwd -P)/$(basename -- $0)" != \
     "$(cd $(dirname -- ${.sh.file}) && pwd -P)/$(basename -- ${.sh.file})" ] \
     && _pw_sourced=1
 elif [ -n "$BASH_VERSION" ]; then
   (return 0 2>/dev/null) && _pw_sourced=1
 else  # All other shells: examine $0 for known shell binary filenames
   # Detects `sh` and `dash`; add additional shell filenames as needed.
   case ${0##*/} in sh|dash) _pw_sourced=1;; esac
 fi

 if [ "$_pw_sourced" -eq 0 ]; then
   _PW_NAME=$(basename "$PW_SETUP_SCRIPT_PATH" .sh)
   _pw_bold_red "Error: Attempting to $_PW_NAME in a subshell"
   _pw_red "  Since $_PW_NAME.sh modifies your shell's environment variables, it"
   _pw_red "  must be sourced rather than executed. In particular, "
   _pw_red "  'bash $_PW_NAME.sh' will not work since the modified environment "
   _pw_red "  will get destroyed at the end of the script. Instead, source the "
   _pw_red "  script's contents in your shell:"
   _pw_red ""
   _pw_red "    \$ source $_PW_NAME.sh"
   exit 1
 fi

 PW_ROOT="$(dirname "$PW_SETUP_SCRIPT_PATH")"

 if [[ "$PW_ROOT" = *" "* ]]; then
   _pw_bold_red "Error: The Pigweed path contains spaces\n"
   _pw_red "  The path '$PW_ROOT' contains spaces. "
   _pw_red "  Pigweed's Python environment currently requires Pigweed to be "
   _pw_red "  at a path without spaces. Please checkout Pigweed in a directory "
   _pw_red "  without spaces and retry running bootstrap."
   return
 fi

 export PW_ROOT

 # PW_ENVIRONMENT_ROOT allows developers to specify where the environment should
 # be installed. _PW_ACTUAL_ENVIRONMENT_ROOT is where Pigweed keeps that
 # information. This separation allows Pigweed to assume PW_ENVIRONMENT_ROOT
 # came from the developer and not from a previous bootstrap possibly from
 # another workspace.
 if [ -z "$PW_ENVIRONMENT_ROOT" ]; then
   _PW_ACTUAL_ENVIRONMENT_ROOT="$PW_ROOT/.environment"
   export _PW_ACTUAL_ENVIRONMENT_ROOT
 else
   _PW_ACTUAL_ENVIRONMENT_ROOT="$PW_ENVIRONMENT_ROOT"
   export _PW_ACTUAL_ENVIRONMENT_ROOT
 fi
 SETUP_SH="$_PW_ACTUAL_ENVIRONMENT_ROOT/activate.sh"

 if [ -z "$PW_ENVSETUP_QUIET" ] && [ -z "$PW_ENVSETUP_NO_BANNER" ]; then
   _pw_green "\n  WELCOME TO...\n"
   "_pw_$PW_BRANDING_BANNER_COLOR" "$_PW_BANNER\n"
 fi

 # Run full bootstrap when invoked as bootstrap, or env file is missing/empty.
 [ "$(basename "$PW_SETUP_SCRIPT_PATH")" = "bootstrap.sh" ] || \
   [ ! -f "$SETUP_SH" ] || \
   [ ! -s "$SETUP_SH" ]
 _PW_IS_BOOTSTRAP="$?"

 if [ "$_PW_IS_BOOTSTRAP" -eq 0 ]; then
   _PW_NAME="bootstrap"

   if [ -z "$PW_ENVSETUP_QUIET" ]; then
     _pw_green "  BOOTSTRAP! Bootstrap may take a few minutes; please be patient.\n"
   fi

   # Allow forcing a specific version of Python for testing pursposes.
   if [ -n "$PW_BOOTSTRAP_PYTHON" ]; then
     PYTHON="$PW_BOOTSTRAP_PYTHON"
   elif which python &> /dev/null; then
     PYTHON=python
   else
     _pw_bold_red "Error: No system Python present\n"
     _pw_red "  Pigweed's bootstrap process requires a local system Python."
     _pw_red "  Please install Python on your system, add it to your PATH"
     _pw_red "  and re-try running bootstrap."
     return
   fi

   _PW_OLD_CIPD_PACKAGE_FILES="$PW_CIPD_PACKAGE_FILES"
   PW_CIPD_PACKAGE_FILES="$PW_ROOT/pw_env_setup/py/pw_env_setup/cipd_setup/pigweed.json:$PW_ROOT/pw_env_setup/py/pw_env_setup/cipd_setup/luci.json:$PW_CIPD_PACKAGE_FILES"
   export PW_CIPD_PACKAGE_FILES

   _PW_OLD_VIRTUALENV_REQUIREMENTS="$PW_VIRTUALENV_REQUIREMENTS"
   PW_VIRTUALENV_REQUIREMENTS="$PW_ROOT/pw_env_setup/py/pw_env_setup/virtualenv_setup/requirements.txt:$PW_VIRTUALENV_REQUIREMENTS"
   export PW_VIRTUALENV_REQUIREMENTS

   _PW_OLD_VIRTUALENV_SETUP_PY_ROOTS="$PW_VIRTUALENV_SETUP_PY_ROOTS"
   PW_VIRTUALENV_SETUP_PY_ROOTS="$PW_ROOT/*:$PW_VIRTUALENV_SETUP_PY_ROOTS"
   export PW_VIRTUALENV_SETUP_PY_ROOTS

   _PW_OLD_CARGO_PACKAGE_FILES="$PW_CARGO_PACKAGE_FILES"
   PW_CARGO_PACKAGE_FILES="$PW_ROOT/pw_env_setup/py/pw_env_setup/cargo_setup/packages.txt:$PW_CARGO_PACKAGE_FILES"
   export PW_CARGO_PACKAGE_FILES

   if [ -n "$PW_USE_GCS_ENVSETUP" ]; then
     _PW_ENV_SETUP="$("$PW_ROOT/pw_env_setup/get_pw_env_setup.sh")"
   fi

   if [ -n "$_PW_ENV_SETUP" ]; then
     "$_PW_ENV_SETUP" --shell-file "$SETUP_SH" --install-dir "$_PW_ACTUAL_ENVIRONMENT_ROOT"
   else
     "$PYTHON" "$PW_ROOT/pw_env_setup/py/pw_env_setup/env_setup.py" --shell-file "$SETUP_SH" --install-dir "$_PW_ACTUAL_ENVIRONMENT_ROOT"
   fi

   PW_CIPD_PACKAGE_FILES="$_PW_OLD_CIPD_PACKAGE_FILES"
   PW_VIRTUALENV_REQUIREMENTS="$_PW_OLD_VIRTUALENV_REQUIREMENTS"
   PW_VIRTUALENV_SETUP_PY_ROOTS="$_PW_OLD_VIRTUALENV_SETUP_PY_ROOTS"
   PW_CARGO_PACKAGE_FILES="$_PW_OLD_CARGO_PACKAGE_FILES"
 else
   _PW_NAME="activate"

   if [ -z "$PW_ENVSETUP_QUIET" ]; then
     _pw_green "  ACTIVATOR! This sets your shell environment variables.\n"
   fi
 fi

 if [ -f "$SETUP_SH" ]; then
   . "$SETUP_SH"

   if [ "$?" -eq 0 ]; then
     if [ "$_PW_IS_BOOTSTRAP" -eq 0 ] && [ -z "$PW_ENVSETUP_QUIET" ]; then
       echo "To activate this environment in the future, run this in your "
       echo "terminal:"
       echo
       _pw_green "  source ./activate.sh\n"
     fi
   else
     _pw_red "Error during $_PW_NAME--see messages above."
   fi
 else
   _pw_red "Error during $_PW_NAME--see messages above."
 fi

 unset _PW_ENV_SETUP
 unset _PW_IS_BOOTSTRAP
 unset _PW_NAME
 unset _PW_BANNER
 unset _PW_OLD_CIPD_PACKAGE_FILES
 unset _PW_OLD_VIRTUALENV_REQUIREMENTS
 unset _PW_OLD_VIRTUALENV_SETUP_PY_ROOTS
 unset _PW_OLD_CARGO_PACKAGE_FILES
 unset _pw_abspath
 unset _pw_red
 unset _pw_bold_red
 unset _pw_green
 unset _pw_magenta
 unset _pw_sourced
	# Copyright 2020 The Pigweed 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
	#
	# https://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.

	# This script must be tested on bash, zsh, and dash.

	_pw_abspath () {
	python -c "import os.path; print(os.path.abspath('$@'))"
	}


	# Note: Colors are unfortunately duplicated in several places; and removing the
	# duplication is not easy. Their locations are:
	#
	# - bootstrap.sh
	# - pw_cli/color.py
	# - pw_env_setup/py/pw_env_setup/colors.py
	#
	# So please keep them matching then modifying them.
	_pw_none() {
	echo -e "$*"
	}

	_pw_red() {
	echo -e "\033[0;31m$*\033[0m"
	}

	_pw_bold_red() {
	echo -e "\033[1;31m$*\033[0m"
	}

	_pw_yellow() {
	echo -e "\033[0;33m$*\033[0m"
	}

	_pw_bold_yellow() {
	echo -e "\033[1;33m$*\033[0m"
	}

	_pw_green() {
	echo -e "\033[0;32m$*\033[0m"
	}

	_pw_bold_green() {
	echo -e "\033[1;32m$*\033[0m"
	}

	_pw_blue() {
	echo -e "\033[1;34m$*\033[0m"
	}

	_pw_cyan() {
	echo -e "\033[1;36m$*\033[0m"
	}

	_pw_magenta() {
	echo -e "\033[0;35m$*\033[0m"
	}

	_pw_bold_white() {
	echo -e "\033[1;37m$*\033[0m"
	}

	# Note: This banner is duplicated in three places; which is a lesser evil than
	# the contortions that would be needed to share this snippet acros shell,
	# batch, and Python. Locations:
	#
	# - bootstrap.sh
	# - pw_cli/branding.py
	# - pw_env_setup/py/pw_env_setup/windows_env_start.py
	#
	_PW_BANNER=$(cat <<EOF
	▒█████▄ █▓ ▄███▒ ▒█ ▒█ ░▓████▒ ░▓████▒ ▒▓████▄
	▒█░ █░ ░█▒ ██▒ ▀█▒ ▒█░ █ ▒█ ▒█ ▀ ▒█ ▀ ▒█ ▀█▌
	▒█▄▄▄█░ ░█▒ █▓░ ▄▄░ ▒█░ █ ▒█ ▒███ ▒███ ░█ █▌
	▒█▀ ░█░ ▓█ █▓ ░█░ █ ▒█ ▒█ ▄ ▒█ ▄ ░█ ▄█▌
	▒█ ░█░ ░▓███▀ ▒█▓▀▓█░ ░▓████▒ ░▓████▒ ▒▓████▀
	EOF
	)

	# Support customizing the branding with a different banner and color.
	if test -f "$PW_BRANDING_BANNER"; then
	_PW_BANNER=$(cat $PW_BRANDING_BANNER)
	fi
	if test -z "$PW_BRANDING_BANNER_COLOR"; then
	PW_BRANDING_BANNER_COLOR=magenta
	fi

	# Users are not expected to set PW_CHECKOUT_ROOT, it's only used because it
	# seems to be impossible to reliably determine the path to a sourced file in
	# dash when sourced from a dash script instead of a dash interactive prompt.
	# To reinforce that users should not be using PW_CHECKOUT_ROOT, it is cleared
	# here after it is used, and other pw tools will complain if they see that
	# variable set.
	# TODO(mohrr) find out a way to do this without PW_CHECKOUT_ROOT.
	if test -n "$PW_CHECKOUT_ROOT"; then
	PW_SETUP_SCRIPT_PATH="$(_pw_abspath "$PW_CHECKOUT_ROOT/bootstrap.sh")"
	unset PW_CHECKOUT_ROOT
	# Shell: bash.
	elif test -n "$BASH"; then
	PW_SETUP_SCRIPT_PATH="$(_pw_abspath "$BASH_SOURCE")"
	# Shell: zsh.
	elif test -n "$ZSH_NAME"; then
	PW_SETUP_SCRIPT_PATH="$(_pw_abspath "${(%):-%N}")"
	# Shell: dash.
	elif test ${0##*/} = dash; then
	PW_SETUP_SCRIPT_PATH="$(_pw_abspath \
	"$(lsof -p $$ -Fn0 \| tail -1 \| sed 's#^[^/]*##;')")"
	# If everything else fails, try $0. It could work.
	else
	PW_SETUP_SCRIPT_PATH="$(_pw_abspath "$0")"
	fi

	# Check if this file is being executed or sourced.
	_pw_sourced=0
	if [ -n "$SWARMING_BOT_ID" ]; then
	# If set we're running on swarming and don't need this check.
	_pw_sourced=1
	elif [ -n "$ZSH_EVAL_CONTEXT" ]; then
	case $ZSH_EVAL_CONTEXT in *:file) _pw_sourced=1;; esac
	elif [ -n "$KSH_VERSION" ]; then
	[ "$(cd $(dirname -- $0) && pwd -P)/$(basename -- $0)" != \
	"$(cd $(dirname -- ${.sh.file}) && pwd -P)/$(basename -- ${.sh.file})" ] \
	&& _pw_sourced=1
	elif [ -n "$BASH_VERSION" ]; then
	(return 0 2>/dev/null) && _pw_sourced=1
	else # All other shells: examine $0 for known shell binary filenames
	# Detects `sh` and `dash`; add additional shell filenames as needed.
	case ${0##*/} in sh\|dash) _pw_sourced=1;; esac
	fi

	if [ "$_pw_sourced" -eq 0 ]; then
	_PW_NAME=$(basename "$PW_SETUP_SCRIPT_PATH" .sh)
	_pw_bold_red "Error: Attempting to $_PW_NAME in a subshell"
	_pw_red " Since $_PW_NAME.sh modifies your shell's environment variables, it"
	_pw_red " must be sourced rather than executed. In particular, "
	_pw_red " 'bash $_PW_NAME.sh' will not work since the modified environment "
	_pw_red " will get destroyed at the end of the script. Instead, source the "
	_pw_red " script's contents in your shell:"
	_pw_red ""
	_pw_red " \$ source $_PW_NAME.sh"
	exit 1
	fi

	PW_ROOT="$(dirname "$PW_SETUP_SCRIPT_PATH")"

	if [[ "$PW_ROOT" = " " ]]; then
	_pw_bold_red "Error: The Pigweed path contains spaces\n"
	_pw_red " The path '$PW_ROOT' contains spaces. "
	_pw_red " Pigweed's Python environment currently requires Pigweed to be "
	_pw_red " at a path without spaces. Please checkout Pigweed in a directory "
	_pw_red " without spaces and retry running bootstrap."
	return
	fi

	export PW_ROOT

	# PW_ENVIRONMENT_ROOT allows developers to specify where the environment should
	# be installed. _PW_ACTUAL_ENVIRONMENT_ROOT is where Pigweed keeps that
	# information. This separation allows Pigweed to assume PW_ENVIRONMENT_ROOT
	# came from the developer and not from a previous bootstrap possibly from
	# another workspace.
	if [ -z "$PW_ENVIRONMENT_ROOT" ]; then
	_PW_ACTUAL_ENVIRONMENT_ROOT="$PW_ROOT/.environment"
	export _PW_ACTUAL_ENVIRONMENT_ROOT
	else
	_PW_ACTUAL_ENVIRONMENT_ROOT="$PW_ENVIRONMENT_ROOT"
	export _PW_ACTUAL_ENVIRONMENT_ROOT
	fi
	SETUP_SH="$_PW_ACTUAL_ENVIRONMENT_ROOT/activate.sh"

	if [ -z "$PW_ENVSETUP_QUIET" ] && [ -z "$PW_ENVSETUP_NO_BANNER" ]; then
	_pw_green "\n WELCOME TO...\n"
	"_pw_$PW_BRANDING_BANNER_COLOR" "$_PW_BANNER\n"
	fi

	# Run full bootstrap when invoked as bootstrap, or env file is missing/empty.
	[ "$(basename "$PW_SETUP_SCRIPT_PATH")" = "bootstrap.sh" ] \|\| \
	[ ! -f "$SETUP_SH" ] \|\| \
	[ ! -s "$SETUP_SH" ]
	_PW_IS_BOOTSTRAP="$?"

	if [ "$_PW_IS_BOOTSTRAP" -eq 0 ]; then
	_PW_NAME="bootstrap"

	if [ -z "$PW_ENVSETUP_QUIET" ]; then
	_pw_green " BOOTSTRAP! Bootstrap may take a few minutes; please be patient.\n"
	fi

	# Allow forcing a specific version of Python for testing pursposes.
	if [ -n "$PW_BOOTSTRAP_PYTHON" ]; then
	PYTHON="$PW_BOOTSTRAP_PYTHON"
	elif which python &> /dev/null; then
	PYTHON=python
	else
	_pw_bold_red "Error: No system Python present\n"
	_pw_red " Pigweed's bootstrap process requires a local system Python."
	_pw_red " Please install Python on your system, add it to your PATH"
	_pw_red " and re-try running bootstrap."
	return
	fi

	_PW_OLD_CIPD_PACKAGE_FILES="$PW_CIPD_PACKAGE_FILES"
	PW_CIPD_PACKAGE_FILES="$PW_ROOT/pw_env_setup/py/pw_env_setup/cipd_setup/pigweed.json:$PW_ROOT/pw_env_setup/py/pw_env_setup/cipd_setup/luci.json:$PW_CIPD_PACKAGE_FILES"
	export PW_CIPD_PACKAGE_FILES

	_PW_OLD_VIRTUALENV_REQUIREMENTS="$PW_VIRTUALENV_REQUIREMENTS"
	PW_VIRTUALENV_REQUIREMENTS="$PW_ROOT/pw_env_setup/py/pw_env_setup/virtualenv_setup/requirements.txt:$PW_VIRTUALENV_REQUIREMENTS"
	export PW_VIRTUALENV_REQUIREMENTS

	_PW_OLD_VIRTUALENV_SETUP_PY_ROOTS="$PW_VIRTUALENV_SETUP_PY_ROOTS"
	PW_VIRTUALENV_SETUP_PY_ROOTS="$PW_ROOT/*:$PW_VIRTUALENV_SETUP_PY_ROOTS"
	export PW_VIRTUALENV_SETUP_PY_ROOTS

	_PW_OLD_CARGO_PACKAGE_FILES="$PW_CARGO_PACKAGE_FILES"
	PW_CARGO_PACKAGE_FILES="$PW_ROOT/pw_env_setup/py/pw_env_setup/cargo_setup/packages.txt:$PW_CARGO_PACKAGE_FILES"
	export PW_CARGO_PACKAGE_FILES

	if [ -n "$PW_USE_GCS_ENVSETUP" ]; then
	_PW_ENV_SETUP="$("$PW_ROOT/pw_env_setup/get_pw_env_setup.sh")"
	fi

	if [ -n "$_PW_ENV_SETUP" ]; then
	"$_PW_ENV_SETUP" --shell-file "$SETUP_SH" --install-dir "$_PW_ACTUAL_ENVIRONMENT_ROOT"
	else
	"$PYTHON" "$PW_ROOT/pw_env_setup/py/pw_env_setup/env_setup.py" --shell-file "$SETUP_SH" --install-dir "$_PW_ACTUAL_ENVIRONMENT_ROOT"
	fi

	PW_CIPD_PACKAGE_FILES="$_PW_OLD_CIPD_PACKAGE_FILES"
	PW_VIRTUALENV_REQUIREMENTS="$_PW_OLD_VIRTUALENV_REQUIREMENTS"
	PW_VIRTUALENV_SETUP_PY_ROOTS="$_PW_OLD_VIRTUALENV_SETUP_PY_ROOTS"
	PW_CARGO_PACKAGE_FILES="$_PW_OLD_CARGO_PACKAGE_FILES"
	else
	_PW_NAME="activate"

	if [ -z "$PW_ENVSETUP_QUIET" ]; then
	_pw_green " ACTIVATOR! This sets your shell environment variables.\n"
	fi
	fi

	if [ -f "$SETUP_SH" ]; then
	. "$SETUP_SH"

	if [ "$?" -eq 0 ]; then
	if [ "$_PW_IS_BOOTSTRAP" -eq 0 ] && [ -z "$PW_ENVSETUP_QUIET" ]; then
	echo "To activate this environment in the future, run this in your "
	echo "terminal:"
	echo
	_pw_green " source ./activate.sh\n"
	fi
	else
	_pw_red "Error during $_PW_NAME--see messages above."
	fi
	else
	_pw_red "Error during $_PW_NAME--see messages above."
	fi

	unset _PW_ENV_SETUP
	unset _PW_IS_BOOTSTRAP
	unset _PW_NAME
	unset _PW_BANNER
	unset _PW_OLD_CIPD_PACKAGE_FILES
	unset _PW_OLD_VIRTUALENV_REQUIREMENTS
	unset _PW_OLD_VIRTUALENV_SETUP_PY_ROOTS
	unset _PW_OLD_CARGO_PACKAGE_FILES
	unset _pw_abspath
	unset _pw_red
	unset _pw_bold_red
	unset _pw_green
	unset _pw_magenta
	unset _pw_sourced