| # Copyright 2019 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. |
| |
| function _abspath () { |
| python -c "import os.path; print(os.path.abspath('$@'))" |
| } |
| |
| # Shell: bash. |
| if test -n "$BASH"; then |
| PW_SETUP_SCRIPT_PATH=$(_abspath $BASH_SOURCE) |
| # Shell: zsh. |
| elif test -n "$ZSH_NAME"; then |
| PW_SETUP_SCRIPT_PATH=$(_abspath ${(%):-%N}) |
| # Shell: dash. |
| elif test ${0##*/} = dash; then |
| PW_SETUP_SCRIPT_PATH=$(_abspath \ |
| $(lsof -p $$ -Fn0 | tail -1 | sed 's#^[^/]*##;')) |
| # If everything else fails, try $0. It could work. |
| else |
| PW_SETUP_SCRIPT_PATH=$(_abspath $0) |
| fi |
| |
| PW_ENVSETUP=$(dirname $PW_SETUP_SCRIPT_PATH) |
| export PW_ENVSETUP |
| |
| PW_ROOT=$(dirname "$PW_ENVSETUP") |
| export PW_ROOT |
| |
| unset ABORT_PW_ENVSETUP |
| unset PW_ENVSETUP_FULL |
| |
| if [[ $(basename $PW_SETUP_SCRIPT_PATH) == "bootstrap.sh" ]]; then |
| PW_ENVSETUP_FULL=1 |
| export PW_ENVSETUP_FULL |
| fi |
| |
| # Initialize CIPD. |
| . "$PW_ENVSETUP/cipd/init.sh" |
| |
| # Check that Python 3 comes from CIPD. |
| if [[ -z "$ABORT_PW_ENVSETUP" ]]; then |
| if [[ $(which python3) != *"cipd"* ]]; then |
| echo "Python not from CIPD--found $(which python3) instead" 1>&2 |
| ABORT_PW_ENVSETUP=1 |
| fi |
| fi |
| |
| # Initialize Python 3 virtual environment. |
| if [[ -z "$ABORT_PW_ENVSETUP" ]]; then |
| . "$PW_ENVSETUP/virtualenv/init.sh" |
| fi |
| |
| if [[ -n "$ABORT_PW_ENVSETUP" ]]; then |
| echo "Environment setup failed! Please see messages above." 1>&2 |
| fi |
| |
| # Unset this at the end so users running setup scripts directly get consistent |
| # behavior. |
| unset PW_ENVSETUP_FULL |