bin/flutter.bat - external/github.com/flutter/flutter - Git at Google

 @ECHO off
 REM Copyright 2017 The Chromium 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 `flutter` script in the same directory to ensure that Flutter continues to
 REM work across all platforms!
 REM
 REM --------------------------------------------------------------------------

 SETLOCAL ENABLEDELAYEDEXPANSION

 FOR %%i IN ("%~dp0..") DO SET FLUTTER_ROOT=%%~fi

 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
 SET pub=%dart_sdk_path%\bin\pub.bat

 REM If available, add location of bundled mingit to PATH
 SET mingit_path=%FLUTTER_ROOT%\bin\mingit\cmd
 IF EXIST "%mingit_path%" SET PATH=%PATH%;%mingit_path%

 REM Test if Git is available on the Host
 where /q git || ECHO Error: Unable to find git in your PATH. && EXIT /B 1
 REM  Test if the flutter directory is a git clone, otherwise git rev-parse HEAD would fail
 IF NOT EXIST "%flutter_root%\.git" (
   ECHO Error: The Flutter directory is not a clone of the GitHub project.
   ECHO        The flutter tool requires Git in order to operate properly;
   ECHO        to set up Flutter, run the following command:
   ECHO        git clone -b beta https://github.com/flutter/flutter.git
   EXIT /B 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
   ECHO            %cache_dir%
   ECHO.
   ECHO        This may be because flutter doesn't have write permissions for
   ECHO        this path. Try moving the flutter directory to a writable location,
   ECHO        such as within your home directory.
   EXIT /B 1
 )


 REM To debug the tool, you can uncomment the following lines to enable checked mode and set an observatory port:
 REM SET FLUTTER_TOOL_ARGS="--checked %FLUTTER_TOOL_ARGS%"
 REM SET FLUTTER_TOOL_ARGS="%FLUTTER_TOOL_ARGS% --observe=65432"

 :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
   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
   REM Compare "last modified" timestamps
   SET pubspec_yaml_path=%flutter_tools_dir%\pubspec.yaml
   SET pubspec_lock_path=%flutter_tools_dir%\pubspec.lock
   FOR %%i IN ("%pubspec_yaml_path%") DO SET yaml_timestamp=%%~ti
   FOR %%i IN ("%pubspec_lock_path%") DO SET lock_timestamp=%%~ti
   IF !yaml_timestamp! EQU !lock_timestamp! GOTO do_snapshot
   FOR /F %%i IN ('DIR /B /O:D "%pubspec_yaml_path%" "%pubspec_lock_path%"') DO SET newer_file=%%i
   IF "%newer_file%" EQU "pubspec.yaml" GOTO do_snapshot

   REM Everything is uptodate - exit subroutine
   EXIT /B

   :do_sdk_update_and_snapshot
     ECHO Checking Dart SDK version...
     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:'=''!"
     CALL PowerShell.exe -ExecutionPolicy Bypass -Command "Unblock-File -Path '%update_dart_bin%'; & '%update_dart_bin%'"
     IF "%ERRORLEVEL%" NEQ "0" (
       ECHO Error: Unable to update Dart SDK. Retrying...
       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 Updating flutter tool...
     PUSHD "%flutter_tools_dir%"

     REM Makes changes to PUB_ENVIRONMENT only visible to commands within SETLOCAL/ENDLOCAL
     SETLOCAL
       IF "%TRAVIS%" == "true" GOTO on_bot
       IF "%BOT%" == "true" GOTO on_bot
       IF "%CONTINUOUS_INTEGRATION%" == "true" GOTO on_bot
       IF "%CHROME_HEADLESS%" == "1" GOTO on_bot
       IF "%APPVEYOR%" == "true" GOTO on_bot
       IF "%CI%" == "true" GOTO on_bot
       GOTO not_on_bot
       :on_bot
         SET PUB_ENVIRONMENT=%PUB_ENVIRONMENT%:flutter_bot
       :not_on_bot
       SET PUB_ENVIRONMENT=%PUB_ENVIRONMENT%:flutter_install
       IF "%PUB_CACHE%" == "" (
        IF EXIST "%pub_cache_path%" SET PUB_CACHE=%pub_cache_path%
       )
       :retry_pub_upgrade
       CALL "%pub%" upgrade --verbosity=error --no-packages-dir
       IF "%ERRORLEVEL%" NEQ "0" (
         ECHO Error: Unable to 'pub upgrade' flutter tool. Retrying in five seconds...
         timeout /t 5 /nobreak
         GOTO :retry_pub_upgrade
       )
     ENDLOCAL

     POPD

     :retry_dart_snapshot
     CALL "%dart%" --snapshot="%snapshot_path%" --packages="%flutter_tools_dir%\.packages" "%script_path%"
     IF "%ERRORLEVEL%" NEQ "0" (
       ECHO Error: Unable to create dart snapshot for flutter tool. Retrying...
       timeout /t 5 /nobreak
       GOTO :retry_dart_snapshot
     )
     >"%stamp_path%" ECHO %revision%

   REM Exit Subroutine
   EXIT /B

 :after_subroutine

 CALL "%dart%" %FLUTTER_TOOL_ARGS% "%snapshot_path%" %*
 SET exit_code=%ERRORLEVEL%

 REM The VM exits with code 253 if the snapshot version is out-of-date.
 IF "%exit_code%" EQU "253" (
   CALL "%dart%" --snapshot="%snapshot_path%" --packages="%flutter_tools_dir%\.packages" "%script_path%"
   SET exit_code=%ERRORLEVEL%
   IF "%exit_code%" EQU "253" (
     ECHO Error: Unable to create dart snapshot for flutter tool.
     EXIT /B %exit_code%
   )
   CALL "%dart%" %FLUTTER_TOOL_ARGS% "%snapshot_path%" %*
   SET exit_code=%ERRORLEVEL%
 )

 EXIT /B %exit_code%
	@ECHO off
	REM Copyright 2017 The Chromium 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 `flutter` script in the same directory to ensure that Flutter continues to
	REM work across all platforms!
	REM
	REM --------------------------------------------------------------------------

	SETLOCAL ENABLEDELAYEDEXPANSION

	FOR %%i IN ("%~dp0..") DO SET FLUTTER_ROOT=%%~fi

	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
	SET pub=%dart_sdk_path%\bin\pub.bat

	REM If available, add location of bundled mingit to PATH
	SET mingit_path=%FLUTTER_ROOT%\bin\mingit\cmd
	IF EXIST "%mingit_path%" SET PATH=%PATH%;%mingit_path%

	REM Test if Git is available on the Host
	where /q git \|\| ECHO Error: Unable to find git in your PATH. && EXIT /B 1
	REM Test if the flutter directory is a git clone, otherwise git rev-parse HEAD would fail
	IF NOT EXIST "%flutter_root%\.git" (
	ECHO Error: The Flutter directory is not a clone of the GitHub project.
	ECHO The flutter tool requires Git in order to operate properly;
	ECHO to set up Flutter, run the following command:
	ECHO git clone -b beta https://github.com/flutter/flutter.git
	EXIT /B 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
	ECHO %cache_dir%
	ECHO.
	ECHO This may be because flutter doesn't have write permissions for
	ECHO this path. Try moving the flutter directory to a writable location,
	ECHO such as within your home directory.
	EXIT /B 1
	)


	REM To debug the tool, you can uncomment the following lines to enable checked mode and set an observatory port:
	REM SET FLUTTER_TOOL_ARGS="--checked %FLUTTER_TOOL_ARGS%"
	REM SET FLUTTER_TOOL_ARGS="%FLUTTER_TOOL_ARGS% --observe=65432"

	: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
	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
	REM Compare "last modified" timestamps
	SET pubspec_yaml_path=%flutter_tools_dir%\pubspec.yaml
	SET pubspec_lock_path=%flutter_tools_dir%\pubspec.lock
	FOR %%i IN ("%pubspec_yaml_path%") DO SET yaml_timestamp=%%~ti
	FOR %%i IN ("%pubspec_lock_path%") DO SET lock_timestamp=%%~ti
	IF !yaml_timestamp! EQU !lock_timestamp! GOTO do_snapshot
	FOR /F %%i IN ('DIR /B /O:D "%pubspec_yaml_path%" "%pubspec_lock_path%"') DO SET newer_file=%%i
	IF "%newer_file%" EQU "pubspec.yaml" GOTO do_snapshot

	REM Everything is uptodate - exit subroutine
	EXIT /B

	:do_sdk_update_and_snapshot
	ECHO Checking Dart SDK version...
	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:'=''!"
	CALL PowerShell.exe -ExecutionPolicy Bypass -Command "Unblock-File -Path '%update_dart_bin%'; & '%update_dart_bin%'"
	IF "%ERRORLEVEL%" NEQ "0" (
	ECHO Error: Unable to update Dart SDK. Retrying...
	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 Updating flutter tool...
	PUSHD "%flutter_tools_dir%"

	REM Makes changes to PUB_ENVIRONMENT only visible to commands within SETLOCAL/ENDLOCAL
	SETLOCAL
	IF "%TRAVIS%" == "true" GOTO on_bot
	IF "%BOT%" == "true" GOTO on_bot
	IF "%CONTINUOUS_INTEGRATION%" == "true" GOTO on_bot
	IF "%CHROME_HEADLESS%" == "1" GOTO on_bot
	IF "%APPVEYOR%" == "true" GOTO on_bot
	IF "%CI%" == "true" GOTO on_bot
	GOTO not_on_bot
	:on_bot
	SET PUB_ENVIRONMENT=%PUB_ENVIRONMENT%:flutter_bot
	:not_on_bot
	SET PUB_ENVIRONMENT=%PUB_ENVIRONMENT%:flutter_install
	IF "%PUB_CACHE%" == "" (
	IF EXIST "%pub_cache_path%" SET PUB_CACHE=%pub_cache_path%
	)
	:retry_pub_upgrade
	CALL "%pub%" upgrade --verbosity=error --no-packages-dir
	IF "%ERRORLEVEL%" NEQ "0" (
	ECHO Error: Unable to 'pub upgrade' flutter tool. Retrying in five seconds...
	timeout /t 5 /nobreak
	GOTO :retry_pub_upgrade
	)
	ENDLOCAL

	POPD

	:retry_dart_snapshot
	CALL "%dart%" --snapshot="%snapshot_path%" --packages="%flutter_tools_dir%\.packages" "%script_path%"
	IF "%ERRORLEVEL%" NEQ "0" (
	ECHO Error: Unable to create dart snapshot for flutter tool. Retrying...
	timeout /t 5 /nobreak
	GOTO :retry_dart_snapshot
	)
	>"%stamp_path%" ECHO %revision%

	REM Exit Subroutine
	EXIT /B

	:after_subroutine

	CALL "%dart%" %FLUTTER_TOOL_ARGS% "%snapshot_path%" %*
	SET exit_code=%ERRORLEVEL%

	REM The VM exits with code 253 if the snapshot version is out-of-date.
	IF "%exit_code%" EQU "253" (
	CALL "%dart%" --snapshot="%snapshot_path%" --packages="%flutter_tools_dir%\.packages" "%script_path%"
	SET exit_code=%ERRORLEVEL%
	IF "%exit_code%" EQU "253" (
	ECHO Error: Unable to create dart snapshot for flutter tool.
	EXIT /B %exit_code%
	)
	CALL "%dart%" %FLUTTER_TOOL_ARGS% "%snapshot_path%" %*
	SET exit_code=%ERRORLEVEL%
	)

	EXIT /B %exit_code%