[mythtv-users] building android mythfrontend on Ubuntu 22.04 vs. 20.04?

[James Abernathy]

On Fri, Aug 19, 2022 at 11:02 AM James Abernathy <jfabernathy at gmail.com>
wrote:

>
>
> On Fri, Aug 19, 2022 at 9:33 AM Peter Bennett <pb.mythtv at gmail.com> wrote:
>
>>
>> On 8/18/22 16:11, James Abernathy wrote:
>>
>>
>>
>> On Thu, Aug 18, 2022 at 3:57 PM Peter Bennett <pb.mythtv at gmail.com>
>> wrote:
>>
>>>
>>> On 8/17/22 16:15, James Abernathy wrote:
>>> > So I was testing out the updated Readme.md at
>>> > https://github.com/MythTV/packaging/tree/master/android
>>> > by building a KVM VM using Ubuntu 20.04 and the instructions including
>>> > the dependencies worked as documented. So I thought I'd see if this
>>> > held true on Ubuntu 22.04. Well it did not.  After I built the VM
>>> > using Ubuntu 22.04 I followed the Readme.md again and it failed
>>> > building the libs and the error seemed to indicate it could not find
>>> > the command 'pkg-config'.
>>> >
>>> > I checked the 20.04 VM and it had the command pkg-config but 22.04
>>> > didn't.  I did sudo apt install pkg-config on the 22.04 VM and then
>>> > the libs were built.  However, when I tried to build the apk, I got an
>>> > error about not finding 'libmariadb.so'.
>>> >
>>> > This made no sense to me.  Anyone have any ideas? Obviously, I could
>>> > update the Readme.md to say Ubuntu 20.04 only, but that would seem odd.
>>> >
>>> > Jim A
>>> >
>>> >
>>> > _______________________________________________
>>>
>>> I have built on 22.04 ever since I upgraded to 22.04 a couple of months
>>> ago. I have not had any problems, although I did build the libs on 20.04
>>> and continued using the same ones on 22.04. Are you building fixes/32 or
>>> master?
>>>
>>> Peter
>>>
>>>
>> I think there must be something different about having 20.04 working and
>> then upgrading in place to 22.04.  I may do an experiment if I have time.
>> I'm doing fixes/32 only when testing 22.04.
>>
>> After I had 20.04 production arm and arm64 apks for fixes/32, I did try
>> master just to see since I have a master FE/BE combo testing system working
>> fine on Master, but while libs built, apks failed hard and early.  I didn't
>> even try to figure out what was missing.
>>
>> Both the 20.04 and 22.04 android builder systems were just VMs so they
>> were fresh systems with just what it took to run the android builds.  My
>> new Readme.md was strictly 20.04, fresh VM  and it's repeatable.  Since I
>> can build a 20.04 VM as easily as 22.04, I really don't care, but someone
>> will try 22.04 naturally and it will fail. If I could identify the problem
>> that would be good to note the changes, but otherwise I may want a 20.04
>> only warning in the readme.
>>
>> Jim A
>>
>>
>> FWIW I never upgrade an operating system version in place. My 22.04 is a
>> fresh install. After install I moved important stuff, like the development
>> libraries and android directory to the new home directory of 22.04.
>>
>> Peter
>>
>
> I found where the build-tools 29.0.2 is coming from.  In the directory
> workdir/packaging/android/android-utilities is a file called setenv.sh and
> there is some logic in there that hardcodes the version if a test fails:
>
> ANDROID_ROOT=$HOME/Android
> ANDROID_ROOT=`readlink -f "$ANDROID_ROOT"`
> export ANDROID_SDK=$ANDROID_ROOT/Sdk
> export ANDROID_NDK=$ANDROID_ROOT/android-ndk
> export ANDROID_SDK_ROOT=$ANDROID_SDK
> export ANDROID_NDK_ROOT=$ANDROID_NDK
> if [ $(ls -1 "$ANDROID_SDK_ROOT/build-tools" | wc -l) == 1 ] ; then
> export ANDROID_BUILD_TOOLS_REVISION=$(ls -1 $ANDROID_SDK_ROOT/build-tools
> | grep "^[0-9]" | tail -1)
> echo "Using discovered tools version $ANDROID_BUILD_TOOLS_REVISION"
> else
> export ANDROID_BUILD_TOOLS_REVISION=29.0.2
> echo "Using hardcoded tools version  $ANDROID_BUILD_TOOLS_REVISION"
>

Changing the export statement to =29.0.3 fixes the issue for me.  Not sure
if the hardcoding is done by what android does or if a mythtv developer did
that? I guess there is something wrong with the if statement because 29.0.3
is installed in my case. Maybe because build-tools 28.0.3 also got
installed in the process caused some of the issues. However, I did not
select any build-tools but 29.0.3 during the android-studio config.

Jim A
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