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1@echo off
2rem Copyright (C) 2007 The Android Open Source Project
3rem
4rem Licensed under the Apache License, Version 2.0 (the "License");
5rem you may not use this file except in compliance with the License.
6rem You may obtain a copy of the License at
7rem
8rem      http://www.apache.org/licenses/LICENSE-2.0
9rem
10rem Unless required by applicable law or agreed to in writing, software
11rem distributed under the License is distributed on an "AS IS" BASIS,
12rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13rem See the License for the specific language governing permissions and
14rem limitations under the License.
15
16rem This script is called by the other batch files to find a suitable Java.exe
17rem to use. The script changes the "java_exe" env variable. The variable
18rem is left unset if Java.exe was not found.
19
20rem Useful links:
21rem Command-line reference:
22rem   http://technet.microsoft.com/en-us/library/bb490890.aspx
23
24rem Check we have a valid Java.exe in the path. The return code will
25rem be 0 if the command worked or 9009 if the exec failed (program not found).
26rem Java itself will return 1 if the argument is not understood.
27set java_exe=java
28%java_exe% -version 2>nul
29if ERRORLEVEL 1 goto SearchForJava
30goto :EOF
31
32
33rem ---------------
34:SearchForJava
35rem We get here if the default %java_exe% was not found in the path.
36rem Search for an alternative in %ProgramFiles%\Java\*\bin\java.exe
37
38echo.
39echo WARNING: Java not found in your path.
40
41rem Check if there's a 64-bit version of Java in %ProgramW6432%
42if not defined ProgramW6432 goto :Check32
43echo Checking if it's installed in %ProgramW6432%\Java instead (64-bit).
44
45set java_exe=
46for /D %%a in ( "%ProgramW6432%\Java\*" ) do call :TestJavaDir "%%a"
47if defined java_exe goto :EOF
48
49rem Check for the "default" 32-bit version
50:Check32
51echo Checking if it's installed in %ProgramFiles%\Java instead.
52
53set java_exe=
54for /D %%a in ( "%ProgramFiles%\Java\*" ) do call :TestJavaDir "%%a"
55if defined java_exe goto :EOF
56
57echo.
58echo ERROR: No suitable Java found. In order to properly use the Android Developer
59echo Tools, you need a suitable version of Java JDK installed on your system.
60echo We recommend that you install the JDK version of JavaSE, available here:
61echo   http://www.oracle.com/technetwork/java/javase/downloads
62echo.
63echo You can find the complete Android SDK requirements here:
64echo   http://developer.android.com/sdk/requirements.html
65echo.
66goto :EOF
67
68rem ---------------
69:TestJavaDir
70rem This is a "subrountine" for the for /D above. It tests the short version
71rem of the %1 path (i.e. the path with only short names and no spaces).
72rem However we use the full version without quotes (e.g. %~1) for pretty print.
73if defined java_exe goto :EOF
74set full_path=%~1\bin\java.exe
75set short_path=%~s1\bin\java.exe
76
77%short_path% -version 2>nul
78if ERRORLEVEL 1 goto :EOF
79set java_exe=%short_path%
80
81echo.
82echo Java was found at %full_path%.
83echo Please consider adding it to your path:
84echo - Under Windows XP, open Control Panel / System / Advanced / Environment Variables
85echo - Under Windows Vista or Windows 7, open Control Panel / System / Advanced System Settings / Environment Variables
86echo At the end of the "Path" entry in "User variables", add the following:
87echo   ;%full_path%
88echo.
89