bin/internal/shared.bat - mirrors/flutter - Git at Google

 @ECHO off
 REM Copyright 2014 The Flutter Authors. All rights reserved.
 REM Use of this source code is governed by a BSD-style license that can be
 REM found in the LICENSE file.

 REM ---------------------------------- NOTE ----------------------------------
 REM
 REM Please keep the logic in this file consistent with the logic in the
 REM `shared.sh` script in the same directory to ensure that Flutter & Dart continue to
 REM work across all platforms!
 REM
 REM --------------------------------------------------------------------------

 SETLOCAL ENABLEDELAYEDEXPANSION

 SET flutter_tools_dir=%FLUTTER_ROOT%\packages\flutter_tools
 SET cache_dir=%FLUTTER_ROOT%\bin\cache
 SET snapshot_path=%cache_dir%\flutter_tools.snapshot
 SET stamp_path=%cache_dir%\flutter_tools.stamp
 SET script_path=%flutter_tools_dir%\bin\flutter_tools.dart
 SET dart_sdk_path=%cache_dir%\dart-sdk
 SET engine_stamp=%cache_dir%\engine-dart-sdk.stamp
 SET engine_version_path=%FLUTTER_ROOT%\bin\internal\engine.version
 SET pub_cache_path=%FLUTTER_ROOT%\.pub-cache

 SET dart=%dart_sdk_path%\bin\dart.exe

 REM Detect which PowerShell executable is available on the Host
 REM PowerShell version <= 5: PowerShell.exe
 REM PowerShell version >= 6: pwsh.exe
 WHERE /Q pwsh.exe && (
     SET powershell_executable=pwsh.exe
 ) || WHERE /Q PowerShell.exe && (
     SET powershell_executable=PowerShell.exe
 ) || (
     ECHO Error: PowerShell executable not found.                        1>&2
     ECHO        Either pwsh.exe or PowerShell.exe must be in your PATH. 1>&2
     EXIT 1
 )

 REM Ensure that bin/cache exists.
 IF NOT EXIST "%cache_dir%" MKDIR "%cache_dir%"

 REM If the cache still doesn't exist, fail with an error that we probably don't have permissions.
 IF NOT EXIST "%cache_dir%" (
   ECHO Error: Unable to create cache directory at                                 1>&2
   ECHO            %cache_dir%                                                     1>&2
   ECHO.                                                                           1>&2
   ECHO        This may be because flutter doesn't have write permissions for      1>&2
   ECHO        this path. Try moving the flutter directory to a writable location, 1>&2
   ECHO        such as within your home directory.                                 1>&2
   EXIT 1
 )

 :acquire_lock
 2>NUL (
   REM "3" is now stderr because of "2>NUL".
   CALL :subroutine %* 2>&3 9> "%cache_dir%\flutter.bat.lock" || GOTO acquire_lock
 )
 GOTO :after_subroutine

 :subroutine
   REM If present, run the bootstrap script first
   SET bootstrap_path=%FLUTTER_ROOT%\bin\internal\bootstrap.bat
   IF EXIST "%bootstrap_path%" (
     CALL "%bootstrap_path%"
   )

   PUSHD "%flutter_root%"
   FOR /f %%r IN ('git rev-parse HEAD') DO SET revision=%%r
   POPD

   REM The following IF conditions are all linked with a logical OR. However,
   REM there is no OR operator in batch and a GOTO construct is used as replacement.

   IF NOT EXIST "%engine_stamp%" GOTO do_sdk_update_and_snapshot
   SET /P dart_required_version=<"%engine_version_path%"
   SET /P dart_installed_version=<"%engine_stamp%"
   IF !dart_required_version! NEQ !dart_installed_version! GOTO do_sdk_update_and_snapshot
   IF NOT EXIST "%snapshot_path%" GOTO do_snapshot
   IF NOT EXIST "%stamp_path%" GOTO do_snapshot
   SET /P stamp_value=<"%stamp_path%"
   IF !stamp_value! NEQ !revision! GOTO do_snapshot
   SET pubspec_yaml_path=%flutter_tools_dir%\pubspec.yaml
   SET pubspec_lock_path=%flutter_tools_dir%\pubspec.lock
   FOR /F %%i IN ('DIR /B /O:D "%pubspec_yaml_path%" "%pubspec_lock_path%"') DO SET newer_file=%%i
   FOR %%i IN (%pubspec_yaml_path%) DO SET pubspec_yaml_timestamp=%%~ti
   FOR %%i IN (%pubspec_lock_path%) DO SET pubspec_lock_timestamp=%%~ti
   IF "%pubspec_yaml_timestamp%" == "%pubspec_lock_timestamp%" SET newer_file=""
   IF "%newer_file%" EQU "pubspec.yaml" GOTO do_snapshot

   REM Everything is up-to-date - exit subroutine
   EXIT /B

   :do_sdk_update_and_snapshot
     ECHO Checking Dart SDK version... 1>&2
     SET update_dart_bin=%FLUTTER_ROOT%\bin\internal\update_dart_sdk.ps1
     REM Escape apostrophes from the executable path
     SET "update_dart_bin=!update_dart_bin:'=''!"
     REM PowerShell command must have exit code set in order to prevent all non-zero exit codes from being translated
     REM into 1. The exit code 2 is used to detect the case where the major version is incorrect and there should be
     REM no subsequent retries.
     ECHO Downloading Dart SDK from Flutter engine %dart_required_version%... 1>&2
     %powershell_executable% -ExecutionPolicy Bypass -Command "Unblock-File -Path '%update_dart_bin%'; & '%update_dart_bin%'; exit $LASTEXITCODE;"
     IF "%ERRORLEVEL%" EQU "2" (
       EXIT 1
     )
     IF "%ERRORLEVEL%" NEQ "0" (
       ECHO Error: Unable to update Dart SDK. Retrying... 1>&2
       timeout /t 5 /nobreak
       GOTO :do_sdk_update_and_snapshot
     )

   :do_snapshot
     IF EXIST "%FLUTTER_ROOT%\version" DEL "%FLUTTER_ROOT%\version"
     ECHO: > "%cache_dir%\.dartignore"
     ECHO Building flutter tool... 1>&2
     PUSHD "%flutter_tools_dir%"

     REM Makes changes to PUB_ENVIRONMENT only visible to commands within SETLOCAL/ENDLOCAL
     SETLOCAL
       SET VERBOSITY=--verbosity=error
       IF "%CI%" == "true" GOTO on_bot
       IF "%BOT%" == "true" GOTO on_bot
       IF "%CONTINUOUS_INTEGRATION%" == "true" GOTO on_bot
       IF "%CHROME_HEADLESS%" == "1" GOTO on_bot
       GOTO not_on_bot
       :on_bot
         SET PUB_ENVIRONMENT=%PUB_ENVIRONMENT%:flutter_bot
         SET VERBOSITY=--verbosity=normal
       :not_on_bot
       SET PUB_ENVIRONMENT=%PUB_ENVIRONMENT%:flutter_install
       IF "%PUB_CACHE%" == "" (
         IF EXIST "%pub_cache_path%" SET PUB_CACHE=%pub_cache_path%
       )

       SET /A total_tries=10
       SET /A remaining_tries=%total_tries%-1
       :retry_pub_upgrade
         ECHO Running pub upgrade... 1>&2
         "%dart%" __deprecated_pub upgrade "%VERBOSITY%" --no-precompile
         IF "%ERRORLEVEL%" EQU "0" goto :upgrade_succeeded
         ECHO Error (%ERRORLEVEL%): Unable to 'pub upgrade' flutter tool. Retrying in five seconds... (%remaining_tries% tries left) 1>&2
         timeout /t 5 /nobreak 2>NUL
         SET /A remaining_tries-=1
         IF "%remaining_tries%" EQU "0" GOTO upgrade_retries_exhausted
         GOTO :retry_pub_upgrade
       :upgrade_retries_exhausted
         SET exit_code=%ERRORLEVEL%
         ECHO Error: 'pub upgrade' still failing after %total_tries% tries. 1>&2
         GOTO final_exit
       :upgrade_succeeded
     ENDLOCAL

     POPD

     IF "%FLUTTER_TOOL_ARGS%" == "" (
       "%dart%" --verbosity=error --snapshot="%snapshot_path%" --packages="%flutter_tools_dir%\.packages" --no-enable-mirrors "%script_path%"
     ) else (
       "%dart%" "%FLUTTER_TOOL_ARGS%" --verbosity=error --snapshot="%snapshot_path%" --packages="%flutter_tools_dir%\.packages" "%script_path%"
     )
     IF "%ERRORLEVEL%" NEQ "0" (
       ECHO Error: Unable to create dart snapshot for flutter tool. 1>&2
       SET exit_code=%ERRORLEVEL%
       GOTO :final_exit
     )
     >"%stamp_path%" ECHO %revision%

   REM Exit Subroutine
   EXIT /B

 :after_subroutine

 :final_exit
   EXIT /B %exit_code%
	@ECHO off
	REM Copyright 2014 The Flutter Authors. All rights reserved.
	REM Use of this source code is governed by a BSD-style license that can be
	REM found in the LICENSE file.

	REM ---------------------------------- NOTE ----------------------------------
	REM
	REM Please keep the logic in this file consistent with the logic in the
	REM `shared.sh` script in the same directory to ensure that Flutter & Dart continue to
	REM work across all platforms!
	REM
	REM --------------------------------------------------------------------------

	SETLOCAL ENABLEDELAYEDEXPANSION

	SET flutter_tools_dir=%FLUTTER_ROOT%\packages\flutter_tools
	SET cache_dir=%FLUTTER_ROOT%\bin\cache
	SET snapshot_path=%cache_dir%\flutter_tools.snapshot
	SET stamp_path=%cache_dir%\flutter_tools.stamp
	SET script_path=%flutter_tools_dir%\bin\flutter_tools.dart
	SET dart_sdk_path=%cache_dir%\dart-sdk
	SET engine_stamp=%cache_dir%\engine-dart-sdk.stamp
	SET engine_version_path=%FLUTTER_ROOT%\bin\internal\engine.version
	SET pub_cache_path=%FLUTTER_ROOT%\.pub-cache

	SET dart=%dart_sdk_path%\bin\dart.exe

	REM Detect which PowerShell executable is available on the Host
	REM PowerShell version <= 5: PowerShell.exe
	REM PowerShell version >= 6: pwsh.exe
	WHERE /Q pwsh.exe && (
	SET powershell_executable=pwsh.exe
	) \|\| WHERE /Q PowerShell.exe && (
	SET powershell_executable=PowerShell.exe
	) \|\| (
	ECHO Error: PowerShell executable not found. 1>&2
	ECHO Either pwsh.exe or PowerShell.exe must be in your PATH. 1>&2
	EXIT 1
	)

	REM Ensure that bin/cache exists.
	IF NOT EXIST "%cache_dir%" MKDIR "%cache_dir%"

	REM If the cache still doesn't exist, fail with an error that we probably don't have permissions.
	IF NOT EXIST "%cache_dir%" (
	ECHO Error: Unable to create cache directory at 1>&2
	ECHO %cache_dir% 1>&2
	ECHO. 1>&2
	ECHO This may be because flutter doesn't have write permissions for 1>&2
	ECHO this path. Try moving the flutter directory to a writable location, 1>&2
	ECHO such as within your home directory. 1>&2
	EXIT 1
	)

	:acquire_lock
	2>NUL (
	REM "3" is now stderr because of "2>NUL".
	CALL :subroutine %* 2>&3 9> "%cache_dir%\flutter.bat.lock" \|\| GOTO acquire_lock
	)
	GOTO :after_subroutine

	:subroutine
	REM If present, run the bootstrap script first
	SET bootstrap_path=%FLUTTER_ROOT%\bin\internal\bootstrap.bat
	IF EXIST "%bootstrap_path%" (
	CALL "%bootstrap_path%"
	)

	PUSHD "%flutter_root%"
	FOR /f %%r IN ('git rev-parse HEAD') DO SET revision=%%r
	POPD

	REM The following IF conditions are all linked with a logical OR. However,
	REM there is no OR operator in batch and a GOTO construct is used as replacement.

	IF NOT EXIST "%engine_stamp%" GOTO do_sdk_update_and_snapshot
	SET /P dart_required_version=<"%engine_version_path%"
	SET /P dart_installed_version=<"%engine_stamp%"
	IF !dart_required_version! NEQ !dart_installed_version! GOTO do_sdk_update_and_snapshot
	IF NOT EXIST "%snapshot_path%" GOTO do_snapshot
	IF NOT EXIST "%stamp_path%" GOTO do_snapshot
	SET /P stamp_value=<"%stamp_path%"
	IF !stamp_value! NEQ !revision! GOTO do_snapshot
	SET pubspec_yaml_path=%flutter_tools_dir%\pubspec.yaml
	SET pubspec_lock_path=%flutter_tools_dir%\pubspec.lock
	FOR /F %%i IN ('DIR /B /O:D "%pubspec_yaml_path%" "%pubspec_lock_path%"') DO SET newer_file=%%i
	FOR %%i IN (%pubspec_yaml_path%) DO SET pubspec_yaml_timestamp=%%~ti
	FOR %%i IN (%pubspec_lock_path%) DO SET pubspec_lock_timestamp=%%~ti
	IF "%pubspec_yaml_timestamp%" == "%pubspec_lock_timestamp%" SET newer_file=""
	IF "%newer_file%" EQU "pubspec.yaml" GOTO do_snapshot

	REM Everything is up-to-date - exit subroutine
	EXIT /B

	:do_sdk_update_and_snapshot
	ECHO Checking Dart SDK version... 1>&2
	SET update_dart_bin=%FLUTTER_ROOT%\bin\internal\update_dart_sdk.ps1
	REM Escape apostrophes from the executable path
	SET "update_dart_bin=!update_dart_bin:'=''!"
	REM PowerShell command must have exit code set in order to prevent all non-zero exit codes from being translated
	REM into 1. The exit code 2 is used to detect the case where the major version is incorrect and there should be
	REM no subsequent retries.
	ECHO Downloading Dart SDK from Flutter engine %dart_required_version%... 1>&2
	%powershell_executable% -ExecutionPolicy Bypass -Command "Unblock-File -Path '%update_dart_bin%'; & '%update_dart_bin%'; exit $LASTEXITCODE;"
	IF "%ERRORLEVEL%" EQU "2" (
	EXIT 1
	)
	IF "%ERRORLEVEL%" NEQ "0" (
	ECHO Error: Unable to update Dart SDK. Retrying... 1>&2
	timeout /t 5 /nobreak
	GOTO :do_sdk_update_and_snapshot
	)

	:do_snapshot
	IF EXIST "%FLUTTER_ROOT%\version" DEL "%FLUTTER_ROOT%\version"
	ECHO: > "%cache_dir%\.dartignore"
	ECHO Building flutter tool... 1>&2
	PUSHD "%flutter_tools_dir%"

	REM Makes changes to PUB_ENVIRONMENT only visible to commands within SETLOCAL/ENDLOCAL
	SETLOCAL
	SET VERBOSITY=--verbosity=error
	IF "%CI%" == "true" GOTO on_bot
	IF "%BOT%" == "true" GOTO on_bot
	IF "%CONTINUOUS_INTEGRATION%" == "true" GOTO on_bot
	IF "%CHROME_HEADLESS%" == "1" GOTO on_bot
	GOTO not_on_bot
	:on_bot
	SET PUB_ENVIRONMENT=%PUB_ENVIRONMENT%:flutter_bot
	SET VERBOSITY=--verbosity=normal
	:not_on_bot
	SET PUB_ENVIRONMENT=%PUB_ENVIRONMENT%:flutter_install
	IF "%PUB_CACHE%" == "" (
	IF EXIST "%pub_cache_path%" SET PUB_CACHE=%pub_cache_path%
	)

	SET /A total_tries=10
	SET /A remaining_tries=%total_tries%-1
	:retry_pub_upgrade
	ECHO Running pub upgrade... 1>&2
	"%dart%" __deprecated_pub upgrade "%VERBOSITY%" --no-precompile
	IF "%ERRORLEVEL%" EQU "0" goto :upgrade_succeeded
	ECHO Error (%ERRORLEVEL%): Unable to 'pub upgrade' flutter tool. Retrying in five seconds... (%remaining_tries% tries left) 1>&2
	timeout /t 5 /nobreak 2>NUL
	SET /A remaining_tries-=1
	IF "%remaining_tries%" EQU "0" GOTO upgrade_retries_exhausted
	GOTO :retry_pub_upgrade
	:upgrade_retries_exhausted
	SET exit_code=%ERRORLEVEL%
	ECHO Error: 'pub upgrade' still failing after %total_tries% tries. 1>&2
	GOTO final_exit
	:upgrade_succeeded
	ENDLOCAL

	POPD

	IF "%FLUTTER_TOOL_ARGS%" == "" (
	"%dart%" --verbosity=error --snapshot="%snapshot_path%" --packages="%flutter_tools_dir%\.packages" --no-enable-mirrors "%script_path%"
	) else (
	"%dart%" "%FLUTTER_TOOL_ARGS%" --verbosity=error --snapshot="%snapshot_path%" --packages="%flutter_tools_dir%\.packages" "%script_path%"
	)
	IF "%ERRORLEVEL%" NEQ "0" (
	ECHO Error: Unable to create dart snapshot for flutter tool. 1>&2
	SET exit_code=%ERRORLEVEL%
	GOTO :final_exit
	)
	>"%stamp_path%" ECHO %revision%

	REM Exit Subroutine
	EXIT /B

	:after_subroutine

	:final_exit
	EXIT /B %exit_code%