1:<<"::WINDOWS_ONLY" 2@echo off 3:: Copyright 2020 The Pigweed Authors 4:: 5:: Licensed under the Apache License, Version 2.0 (the "License"); you may not 6:: use this file except in compliance with the License. You may obtain a copy of 7:: the License at 8:: 9:: https://www.apache.org/licenses/LICENSE-2.0 10:: 11:: Unless required by applicable law or agreed to in writing, software 12:: distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 13:: WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 14:: License for the specific language governing permissions and limitations under 15:: the License. 16::WINDOWS_ONLY 17:; echo "ERROR: Attempting to run Windows .bat from a Unix/POSIX shell!" 18:; echo "Instead, run the following command." 19:; echo "" 20:; echo " source ./bootstrap.sh" 21:; echo "" 22:<<"::WINDOWS_ONLY" 23 24:: Pigweed Windows environment setup. 25 26:: WARNING: Multi-line "if" statements can be dangerous! 27:: 28:: Example: 29:: call do_foo 30:: if [expression] ( 31:: call cmd_a 32:: set my_var = %ERRORLEVEL% 33:: call final_script --flag %my_var% 34:: ) 35:: Batch evaluates these expressions in a way that will produce unexpected 36:: behavior. It appears that when each line is executed, it does not affect 37:: local context until the entire expression is complete. In this example, 38:: ERRORLEVEL does not reflect `call cmd_a`, but whatever residual state was 39:: present from `do_foo`. Similarly, in the call to `final_script`, `my_var` 40:: will NOT be valid as the variable `set` doesn't apply until the entire `if` 41:: expression completes. 42:: This script only uses multi-line if statements to `goto` after an operation. 43 44:: If PW_CHECKOUT_ROOT is set, use it. Users should not set this variable. 45:: It's used because when one batch script invokes another the Powershell magic 46:: below doesn't work. To reinforce that users should not be using 47:: PW_CHECKOUT_ROOT, it is cleared here after it is used, and other pw tools 48:: will complain if they see that variable set. 49:: TODO(mohrr) find out a way to do this without PW_CHECKOUT_ROOT. 50 51:: ~dp0 is the batchism for the directory in which a .bat file resides. 52if "%PW_CHECKOUT_ROOT%"=="" ^ 53set "PW_ROOT=%~dp0." &^ 54goto select_python 55 56:: Since PW_CHECKOUT_ROOT is set, use it. 57set "PW_ROOT=%PW_CHECKOUT_ROOT%" 58set "PW_CHECKOUT_ROOT=" 59 60:select_python 61:: Allow forcing a specific Python version through the environment variable 62:: PW_BOOTSTRAP_PYTHON. Otherwise, use the system Python if one exists. 63if not "%PW_BOOTSTRAP_PYTHON%" == "" ( 64 set "python=%PW_BOOTSTRAP_PYTHON%" 65 goto find_environment_root 66) 67 68:: Detect python installation. 69where python >NUL 2>&1 70if %ERRORLEVEL% EQU 0 ( 71 set "python=python" 72 goto find_environment_root 73) 74 75echo. 76echo Error: no system Python present 77echo. 78echo Pigweed's bootstrap process requires a local system Python. 79echo Please install Python on your system, add it to your PATH 80echo and re-try running bootstrap. 81goto finish 82 83 84:find_environment_root 85:: PW_ENVIRONMENT_ROOT allows developers to specify where the environment should 86:: be installed. _PW_ACTUAL_ENVIRONMENT_ROOT is where Pigweed keeps that 87:: information. This separation allows Pigweed to assume PW_ENVIRONMENT_ROOT 88:: came from the developer and not from a previous bootstrap possibly from 89:: another workspace. 90 91if "%PW_PROJECT_ROOT%"=="" set "PW_PROJECT_ROOT=%PW_ROOT%" 92 93if "%PW_ENVIRONMENT_ROOT%"=="" ( 94 set "_PW_ACTUAL_ENVIRONMENT_ROOT=%PW_PROJECT_ROOT%\environment" 95) else ( 96 set "_PW_ACTUAL_ENVIRONMENT_ROOT=%PW_ENVIRONMENT_ROOT%" 97) 98 99set "shell_file=%_PW_ACTUAL_ENVIRONMENT_ROOT%\activate.bat" 100 101set "_pw_start_script=%PW_ROOT%\pw_env_setup\py\pw_env_setup\windows_env_start.py" 102 103:: If PW_SKIP_BOOTSTRAP is set, only run the activation stage instead of the 104:: complete env_setup. 105if not "%PW_SKIP_BOOTSTRAP%" == "" goto skip_bootstrap 106 107:: Without the trailing slash in %PW_ROOT%/, batch combines that token with 108:: the --shell-file argument. 109call "%python%" "%PW_ROOT%\pw_env_setup\py\pw_env_setup\env_setup.py" ^ 110 --pw-root "%PW_ROOT%" ^ 111 --shell-file "%shell_file%" ^ 112 --install-dir "%_PW_ACTUAL_ENVIRONMENT_ROOT%" ^ 113 --project-root "%PW_PROJECT_ROOT%" 114goto activate_shell 115 116:skip_bootstrap 117if exist "%shell_file%" ( 118 call "%python%" "%_pw_start_script%" 119) else ( 120 call "%python%" "%_pw_start_script%" --no-shell-file 121 goto finish 122) 123 124:activate_shell 125if exist "%shell_file%" ( 126 call "%shell_file%" 127) else ( 128 echo. 129 echo [31mBootstrap failed! See output above for the culprit.[0m 130 echo. 131) 132 133:finish 134::WINDOWS_ONLY 135