[TOOL][Linux/Mac] Capire Le Treble | Treble without Vendor Partition - Treble-Enabled Device Development A/AB ROMS

Capire le treble
Terble without Vendor Partition
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As you guys all know google recently announced the project treble with releasing android Oreo, which is coming to pixel devices and some other developers ported it to their devices.
In my opinion first rule of porting treble is “move every possible thing to vendor”, so on and so forth.
So we can boot generic system images (GSI) on treble enabled devices IF DEVICE HAVE SEPERATE VENDOR PARTITION.
On some legacy devices, we don’t see vendor partition, so developers are trying to find an unused partition (for example some OEM partitions) and using it as vendor.
When I was trying to port treble on my device found out that it doesn’t have vendor partition also OEM partition was too small and can’t be used to put files on it.
I kept working on treble but my vendor files are in “/system/vendor” (system partition)
Obviously can’t flash GSIs because I’ll lose my vendor files which exist on system partition.
This project is helping developers or users to create device specific system images (DSSI) by “copy and pasting” vendor files into GSI and recreate system image for the device.
Now everyone can enjoy treble.

How to use CLT, and how it works?
Requairments
GSI image
Treblized rom system image
Linux or Mac
Images must be mounted
And if rom is not fully treblized don’t worry, this script has ability to copy any blobs from system of treblized rom.
In CLT script there’s optional entry called “proprietary-files.txt”, here you can enter prop files from device tree to automatically copy every needed files to system
Also, you can add extra lines.
One Extra rule:
In CLT prop-files.txt all non-vendor lines will be forced replaced, except lines starting with “?”, which won’t replace files if GSI image has that file
Actually, CLT script is not simple copy paste, it’s mirroring files from images using “tar” to keep permissions and symlinks of files
Even for correctly enabling selinux in output image it’s reading file_contexts of both images.
Using CLT is very very very simple you don't need to be a developer, all you need to do is download CLT from github (git clone)
and run it
Code:
./CLT-ify.sh
To see CLT in action here is a youtube video for it
CLT : https://github.com/erfanoabdi/Capire-Le-Treble
example of CLT in Motorola Moto Z(griffin): https://forum.xda-developers.com/moto-z/how-to/guide-how-to-make-gsis-examples-du-aosp-t3774869
Special Thanks:
phhusson: for his great work on GSIs
badi: for name
superr: for his great kitchain

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Looks promising!!

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Thanks for doing this, I know this has been asked several times.
Why do you take a proprietary-files.txt? Why not simply copying vendor folder? (perhaps also product/odm/oem)
Do you plan on targetting users as well? You're losing a bit of user's freedom, and making it require a lot of more maintainance for devs
("doing something targetting users is complicated" is a perfectly valid answer )
Did you consider the pro and cons compared to my no-vendor gpt-based solution?

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phhusson said:
Thanks for doing this, I know this has been asked several times.
Why do you take a proprietary-files.txt? Why not simply copying vendor folder? (perhaps also product/odm/oem)
Do you plan on targetting users as well? You're losing a bit of user's freedom, and making it require a lot of more maintainance for devs
("doing something targetting users is complicated" is a perfectly valid answer )
Did you consider the pro and cons compared to my no-vendor gpt-based solution?
Click to expand...
Click to collapse
thanks for your hard work on GSIs :good:
it's "copy and pasting" full vendor, but using proprietary-files.txt is optional as i explained in OP
i've put proprietary-files.txt option for copy pasting blobs exist in /system for not fully treblized roms.
your no-vendor gpt-based solution is amazing, it's just another simple solution

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erfanoabdi said:
thanks for your hard work on GSIs :good:
it's "copy and pasting" full vendor, but using proprietary-files.txt is optional as i explained in OP
i've put proprietary-files.txt option for copy pasting blobs exist in /system for not fully treblized roms.
your no-vendor gpt-based solution is amazing, it's just another simple solution
Click to expand...
Click to collapse
Oh oops, sorry
FWIW, I'm still hoping to be able to do OTAs in my GSIs (that's quite a challenge though), but with CLT, I'm just going to brick devices

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phhusson said:
Oh oops, sorry
FWIW, I'm still hoping to be able to do OTAs in my GSIs (that's quite a challenge though), but with CLT, I'm just going to brick devices
Click to expand...
Click to collapse
maybe i can add in-phone CLT-ifization, the new GSI after downloading OTA on updater app

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Is it possible to use it on device which doesn't have stock oreo release? For example HTC one m8 which last stock was marshmellow.

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djlukas1983 said:
Is it possible to use it on device which doesn't have stock oreo release? For example HTC one m8 which last stock was marshmellow.
Click to expand...
Click to collapse
i'm not sure but worthy to try
need to build a rom with https://review.lineageos.org/#/c/LineageOS/android_device_xiaomi_msm8996-common/+/206015/
and a good prop-files.txt contains needed system blobs.

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will it support exynos 8895 note 8?

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It is amazing, I want to ask if it would work with nougat bloobs, if not i will have to wait to oreo or any oreo custom rom, thanks a lot and keep it upgraded, it is a great news for all treble lovers without a treble compatible device

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Hello everyone! I believe the Asus Zenfone 4 has this implementation of Treble. If you got any ROMs to test under this implementation, let me know!

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erfanoabdi said:
i'm not sure but worthy to try
need to build a rom with https://review.lineageos.org/#/c/LineageOS/android_device_xiaomi_msm8996-common/+/206015/
and a good prop-files.txt contains needed system blobs.
Click to expand...
Click to collapse
Will it be possible to use GSIs' on older devices like HTC Desire 816?? Sorry because its a noob type question:silly:

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Is it possible to have some detailed instructions on how to make our own Capire Le Treble roms for our devices?

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what is the difference between GSI image and Treblized rom system image?

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khaledose said:
what is the difference between GSI image and Treblized rom system image?
Click to expand...
Click to collapse
They are same.
GSI - Generic System Image
A system image which can be flashed in all treblized devices. And that is why it is Treblized rom system image.

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hemant_jeengar said:
They are same.
GSI - Generic System Image
A system image which can be flashed in all treblized devices. And that is why it is Treblized rom system image.
Click to expand...
Click to collapse
Nope
If you guys read the title
It's for treble enabled devices without vendor partition
System image of treblized is the system image only for the device and have /vendor folder
Not vendor symlink

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This is amazing, I'm going to be trying to utilize this on Motorola Nexus 6, shamu. Thank u for your great work. Seriously.amazing.

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Do you know how to get Android P on Treble devices ? I flashed Pixel2XL system.img on Redmi Note 4 after installing treble support and it doesn't boot. If I look in /system in TWRP theres only a bin folder so something is wrong with the img format or something

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Curi0 said:
Do you know how to get Android P on Treble devices ? I flashed Pixel2XL system.img on Redmi Note 4 after installing treble support and it doesn't boot. If I look in /system in TWRP theres only a bin folder so something is wrong with the img format or something
Click to expand...
Click to collapse
Oh god ?????
That's a device specific image. You need a gsi

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erfanoabdi said:
Nope
If you guys read the title
It's for treble enabled devices without vendor partition
System image of treblized is the system image only for the device and have /vendor folder
Not vendor symlink
Click to expand...
Click to collapse
@erfanoabdi
Is it for Treble devices without a dedicated /vendor partition OR devices without Treble support?
This story from the XDA Portal (https://www.xda-developers.com/motorola-moto-z-android-p/) says that the Moto Z in question does not support Treble, yet he used your script.
Can you please clarify?
Edit: And what if I repartition my device to make a /vendor partition? What's left to be done for Treble?