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131 lines
4.5 KiB
131 lines
4.5 KiB
:<<"::WINDOWS_ONLY"
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@echo off
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:: Copyright 2020 The Pigweed Authors
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::
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:: Licensed under the Apache License, Version 2.0 (the "License"); you may not
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:: use this file except in compliance with the License. You may obtain a copy of
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:: the License at
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::
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:: https://www.apache.org/licenses/LICENSE-2.0
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::
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:: Unless required by applicable law or agreed to in writing, software
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:: distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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:: WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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:: License for the specific language governing permissions and limitations under
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:: the License.
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::WINDOWS_ONLY
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:; echo "ERROR: Attempting to run Windows .bat from a Unix/POSIX shell!"
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:; echo "Instead, run the following command."
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:; echo ""
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:; echo " source ./bootstrap.sh"
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:; echo ""
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:<<"::WINDOWS_ONLY"
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:: Pigweed Windows environment setup.
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:: WARNING: Multi-line "if" statements can be dangerous!
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::
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:: Example:
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:: call do_foo
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:: if [expression] (
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:: call cmd_a
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:: set my_var = %ERRORLEVEL%
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:: call final_script --flag %my_var%
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:: )
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:: Batch evaluates these expressions in a way that will produce unexpected
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:: behavior. It appears that when each line is executed, it does not affect
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:: local context until the entire expression is complete. In this example,
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:: ERRORLEVEL does not reflect `call cmd_a`, but whatever residual state was
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:: present from `do_foo`. Similarly, in the call to `final_script`, `my_var`
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:: will NOT be valid as the variable `set` doesn't apply until the entire `if`
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:: expression completes.
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:: This script only uses multi-line if statements to `goto` after an operation.
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:: If PW_CHECKOUT_ROOT is set, use it. Users should not set this variable.
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:: It's used because when one batch script invokes another the Powershell magic
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:: below doesn't work. To reinforce that users should not be using
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:: PW_CHECKOUT_ROOT, it is cleared here after it is used, and other pw tools
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:: will complain if they see that variable set.
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:: TODO(mohrr) find out a way to do this without PW_CHECKOUT_ROOT.
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:: ~dp0 is the batchism for the directory in which a .bat file resides.
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if "%PW_CHECKOUT_ROOT%"=="" ^
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set "PW_ROOT=%~dp0." &^
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goto select_python
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:: Since PW_CHECKOUT_ROOT is set, use it.
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set "PW_ROOT=%PW_CHECKOUT_ROOT%"
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set "PW_CHECKOUT_ROOT="
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:select_python
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:: Allow forcing a specific Python version through the environment variable
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:: PW_BOOTSTRAP_PYTHON. Otherwise, use the system Python if one exists.
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if not "%PW_BOOTSTRAP_PYTHON%" == "" (
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set "python=%PW_BOOTSTRAP_PYTHON%"
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goto find_environment_root
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)
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:: Detect python installation.
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where python >NUL 2>&1
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if %ERRORLEVEL% EQU 0 (
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set "python=python"
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goto find_environment_root
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)
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echo.
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echo Error: no system Python present
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echo.
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echo Pigweed's bootstrap process requires a local system Python.
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echo Please install Python on your system, add it to your PATH
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echo and re-try running bootstrap.
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goto finish
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:find_environment_root
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:: PW_ENVIRONMENT_ROOT allows developers to specify where the environment should
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:: be installed. _PW_ACTUAL_ENVIRONMENT_ROOT is where Pigweed keeps that
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:: information. This separation allows Pigweed to assume PW_ENVIRONMENT_ROOT
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:: came from the developer and not from a previous bootstrap possibly from
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:: another workspace.
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:: Not prefixing environment with "." since that doesn't hide it anyway.
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if "%PW_ENVIRONMENT_ROOT%"=="" (
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set "_PW_ACTUAL_ENVIRONMENT_ROOT=%PW_ROOT%\environment"
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) else (
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set "_PW_ACTUAL_ENVIRONMENT_ROOT=%PW_ENVIRONMENT_ROOT%"
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)
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set "shell_file=%_PW_ACTUAL_ENVIRONMENT_ROOT%\activate.bat"
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set "_pw_start_script=%PW_ROOT%\pw_env_setup\py\pw_env_setup\windows_env_start.py"
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if "%PW_PROJECT_ROOT%"=="" set "PW_PROJECT_ROOT=%PW_ROOT%"
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:: If PW_SKIP_BOOTSTRAP is set, only run the activation stage instead of the
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:: complete env_setup.
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if not "%PW_SKIP_BOOTSTRAP%" == "" goto skip_bootstrap
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:: Without the trailing slash in %PW_ROOT%/, batch combines that token with
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:: the --shell-file argument.
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call "%python%" "%PW_ROOT%\pw_env_setup\py\pw_env_setup\env_setup.py" ^
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--pw-root "%PW_ROOT%" ^
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--shell-file "%shell_file%" ^
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--install-dir "%_PW_ACTUAL_ENVIRONMENT_ROOT%" ^
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--config-file "%PW_ROOT%/pw_env_setup/config.json" ^
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--project-root "%PW_PROJECT_ROOT%"
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goto activate_shell
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:skip_bootstrap
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if exist "%shell_file%" (
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call "%python%" "%_pw_start_script%"
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) else (
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call "%python%" "%_pw_start_script%" --no-shell-file
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goto finish
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)
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:activate_shell
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call "%shell_file%"
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:finish
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::WINDOWS_ONLY
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