Hi Neil,

But the problem is I want to define a job and use python script to communicate with the Android DUT, for example I want to use script.py in dispatcher to control the DUT. And the "lava_test_shell" will copy all these commands in steps to run.sh.

# test_script.yaml
        - echo "hello world"
        - ./android/script/script.py

# run.sh in DUT
###default parameters from yaml###
###test parameters from json###
###other parameters###
set -e
export TESTRUN_ID=python
cd /data/local/tmp/lava-mstar01/tests/0_c7a6f9e0-ae70-4d8b-8c06-f6da04b7a26c
UUID=`cat uuid`
#wait for an ack from the dispatcher
echo "hello world"
#wait for an ack from the dispatcher

------------------ 原始邮件 ------------------
发件人: "Neil Williams";<neil.williams@linaro.org>;
发送时间: 2016年1月30日(星期六) 晚上11:29
收件人: "wangbo"<wangbo.hfut@qq.com>;
抄送: "Lava Users Mailman list"<lava-users@lists.linaro.org>;
主题: Re: Forward of moderated message

On 29 January 2016 at 04:08, wangbo <wangbo.hfut@qq.com> wrote:
> Hi Neil,
> Thanks very much to your quickly and warmly answer.
> One more question:
> LAVA copy all the test scripts defined in the YAML to the DUT at the
> specified directory, then the job will be executed on the DUT.

The LAVA test shell scripts are POSIX shell. If a shell is not
available, the test can be rewritten to use ADB commands, as the CTS
tests do.

> And if I want
> to test one android device, but almost all the android images don't support
> python interpreter,

LAVA does not run any python code on the DUT unless the test writer
puts python commands into their test shell definition YAML. The python
code only runs on the dispatcher and handles communications over the
serial port (or using ADB).

> so it's impossible to write case with python, in most
> cases we should use shell to run the test case. But sometimes we want to use
> Appium/Robotium to test the android image, and use LAVA to deploy the image,
> analyze and record the test results, so LAVA is unavailable in such
> conditions. Do you have any advice to integrate these tools in LAVA or will
> LAVA support such conditions in the future.

You'd need to use multinode (as with CTS) to install the test support
binaries into a VM which then communicates with the device. That VM
then reports results that are retrieved with LAVA.

> Best Regards.
> ------------------ 原始邮件 ------------------
> 发件人: "Neil Williams";<neil.williams@linaro.org>;
> 发送时间: 2016年1月29日(星期五) 凌晨3:27
> 收件人: "wangbo"<wangbo.hfut@qq.com>;
> 抄送: "Lava Users Mailman list"<lava-users@lists.linaro.org>;
> 主题: Re: Forward of moderated message
>> From: wangbo <wangbo.hfut@qq.com>
>> Date: Thu, 28 Jan 2016 20:39:25 +0800
>> Subject: LAVA uninstall and upgrade, build method from the source code
>> Hi all,
>> I installed LAVA on Ubuntu 14.04 in our lab, but later we plan to upgrade
>> the system to Ubuntu 15.10, so what should I do now?
> I'm afraid the only long term option is to migrate to Debian Jessie,
> possibly using a VM, and then using jessie-backports. It is uncertain
> whether it will be possible to support LAVA on the upcoming Ubuntu
> Xenial 16.04LTS and support for Trusty has already been frozen. There
> have been problems upgrading from 14.04 - these issues have already
> been discussed on the lists.
> https://lists.linaro.org/pipermail/lava-announce/2015-November/000003.html
> The next upload of LAVA should be able to migrate into Ubuntu ahead of
> the cut off for the Xenial release but that is outside our control. It
> is also unknown whether it will be possible to maintain a system based
> on Xenial - the LAVA software team will be unable to maintain such
> support and users would need to be proactive in fixing problems that
> may arise.
>> Because I have already installed LAVA, so should I uninstall it firstly,
>> and then use apt-get install to reinstall LAVA? But I can't find more
>> information about this in the website, can you give me some advice, thanks
>> very much.
> https://staging.validation.linaro.org/static/docs/installing_on_debian.html#debian-installation
> The main problems will be with the database, so building in any way
> will have the same difficulties. Trusty is, sadly, a dead end at the
> moment.
>> And, how to install LAVA from the source code?
> Not supported - installation is only supported as Debian packages.
> LAVA is much more than a pip install / virtualenv can ever manage.
>> LAVA includes different parts, like lava-server, lava-dispatcher,
>> lava-tool, etc. So which one should be installed firstly? By the way in the
>> Git, for example "https://git.linaro.org/lava/lava-server.git/tree", there
>> is no document about the install method. Now, I will modify some code to
>> meet our demands in our lab, and then replace the corresponding file. We
>> plan to manage the code with Git too. So if we know the install method from
>> the source code, it will be better to build the code.
> There is no documentation for installing from git because the
> installation method has moved to using packages. We abandoned the old
> install from git methods a long time ago due to interminable bugs and
> insolvable dilemmas.
> During the migration to the new dispatcher, things are too complex to
> support more than Debian Jessie (and the next Debian release,
> Stretch). Once the migration is complete (in 2017), the advantages of
> the new design should also make it easier to support other operating
> systems. We are a long way from that at the moment.
> --
> Neil Williams
> =============
> neil.williams@linaro.org
> http://www.linux.codehelp.co.uk/


Neil Williams