| # 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. |
| |
| _bootstrap_abspath () { |
| $(command -v python3 || command -v python2 || command -v python) -c "import os.path; print(os.path.abspath('$@'))" |
| } |
| |
| # Shell: bash. |
| if test -n "$BASH"; then |
| _PW_BOOTSTRAP_PATH="$(_bootstrap_abspath "$BASH_SOURCE")" |
| # Shell: zsh. |
| elif test -n "$ZSH_NAME"; then |
| _PW_BOOTSTRAP_PATH="$(_bootstrap_abspath "${(%):-%N}")" |
| # Shell: dash. |
| elif test ${0##*/} = dash; then |
| _PW_BOOTSTRAP_PATH="$(_bootstrap_abspath \ |
| "$(lsof -p $$ -Fn0 | tail -1 | sed 's#^[^/]*##;')")" |
| # If everything else fails, try $0. It could work. |
| else |
| _PW_BOOTSTRAP_PATH="$(_bootstrap_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 ${0##*/} in sh|dash) _pw_sourced=1;; esac |
| fi |
| |
| # Downstream projects need to set something other than PW_ROOT here, like |
| # YOUR_PROJECT_ROOT. Please also set PW_ROOT before invoking pw_bootstrap or |
| # pw_activate. |
| PW_ROOT="$(dirname "$_PW_BOOTSTRAP_PATH")" |
| export PW_ROOT |
| |
| # Please also set PW_PROJECT_ROOT to YOUR_PROJECT_ROOT. |
| PW_PROJECT_ROOT="$PW_ROOT" |
| export PW_PROJECT_ROOT |
| |
| # Support `mac-arm64` through Rosetta until `mac-arm64` binaries are ready |
| # Unset if your project needs the currently-incomplete mac-arm64 toolchain |
| if [ -z "$PW_BOOTSTRAP_USE_ROSETTA" ]; then |
| export PW_BOOTSTRAP_USE_ROSETTA=true |
| fi |
| |
| . "$PW_ROOT/pw_env_setup/util.sh" |
| |
| pw_deactivate |
| pw_eval_sourced "$_pw_sourced" "$_PW_BOOTSTRAP_PATH" |
| pw_check_root "$PW_ROOT" |
| _PW_ACTUAL_ENVIRONMENT_ROOT="$(pw_get_env_root)" |
| export _PW_ACTUAL_ENVIRONMENT_ROOT |
| SETUP_SH="$_PW_ACTUAL_ENVIRONMENT_ROOT/activate.sh" |
| |
| # Downstream projects may wish to set PW_BANNER_FUNC to a function that prints |
| # an ASCII art banner here. |
| |
| # Run full bootstrap when invoked as bootstrap, or env file is missing/empty. |
| if [ "$(basename "$_PW_BOOTSTRAP_PATH")" = "bootstrap.sh" ] || \ |
| [ ! -f "$SETUP_SH" ] || \ |
| [ ! -s "$SETUP_SH" ]; then |
| pw_bootstrap --shell-file "$SETUP_SH" --install-dir "$_PW_ACTUAL_ENVIRONMENT_ROOT" --config-file "$PW_ROOT/pw_env_setup/config.json" |
| pw_finalize bootstrap "$SETUP_SH" |
| else |
| pw_activate |
| pw_finalize activate "$SETUP_SH" |
| fi |
| |
| unset _pw_sourced |
| unset _PW_BOOTSTRAP_PATH |
| unset SETUP_SH |
| unset _bootstrap_abspath |
| |
| pw_cleanup |