Question

I’m trying to make a simple build script that would work on windows and unix systems.
The script is to be run from cygwin if windows, otherwise just a standard shell.

The script will do the following:

1. set the directory variable SDK_ROOT to ‘/cygdrive/C/PROGRA~2/Android/android-sdk/’
2. set the directory variable NDK_ROOT to ‘/cygdrive/C/PROGRA~2/android-ndk-r6b’
3. cd Android/bin/
4. run javah -d ../../test/mytest/ -classpath .:$SDK_ROOT/platforms/android-8/android.jar com.test.MyTest
5. cd ..
6. run $NDK_ROOT/ndk-build

I’m not sure what kind of scripting language to use nor its syntax, I only know it would roughly look like above. Any ideas on how to proceed?

Answer 1

It seems to me that you already wrote the script, it just needs a few modifications:

Windows
myscript.cmd

@ECHO OFF
setlocal

SET SDK_ROOT=C:\PROGRA~2\Android\android-sdk\
SET NDK_ROOT=C:\PROGRA~2\android-ndk-r6b\
CD Android/bin/
javah -d ../../test/mytest/ -classpath .:%SDK_ROOT%/platforms/android-8/android.jar com.test.MyTest
CD ..
RUN %NDK_ROOT%/ndk-build

endlocal

Unix
myscript.sh

#!/bin/bash
SDK_ROOT="/cygdrive/C/PROGRA~2/Android/android-sdk/"
NDK_ROOT="/cygdrive/C/PROGRA~2/android-ndk-r6b"
cd Android/bin/
javah -d ../../test/mytest/ -classpath .:${SDK_ROOT}/platforms/android-8/android.jar com.test.MyTest
cd ..
$NDK_ROOT/ndk-build

Also, make sure that javah exists in your PATH env variable.
if it doesn’t exist, you can add it to the scripts at the beginning:

Windows
SET PATH=c:\path\to\javah;%PATH%

Unix
export PATH=/path/to/javah:$PATH

Note: you might have to modify the sdk/ndk paths for the script on windows.